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MONITORIZAREA AMBULATORIE
A TENSIUNII ARTERIALE
DE LA CERCETARE LA APLICABILITATEA CLINICA

Alexandru Andritoiu
Sp. Clinic de Urgenta Militar Craiova
Sectia Medicina Interna
1961

Moto:
,, Blood pressure is a quantity with a
very large range…hypertension is
a quantitative disease,,
Sir George White Pickering
(1904-1980)

1968
Office BP vs. Out-of-Office BP
• Office BP
TA de cabinet
• Out-of-Office BP
ABPM
Auto-masurarea TA la domiciliu

ESH/ESC 2013
TEHNICI DE MONITORIZARE TA
Non-invazive
• ABPM ambulatory
blood pressure
monitoring
• HBPM home blood
pressure monitoring

Invazive
• Manometrie I.A.
Metode ABPM

• Metoda oscilometrica
• Metoda auscultatorie
• Metoda pletismografica

Protocoale de validare AAMI (1990) si BHS (1993)
SpaceLab
OMRON
Takeda
T2420
Home BP monitoring
Indicatii
FARA TRATAMENT
• HTHA (WCH)
• HTA borderline
• HTA refractara
• HTA secundara
• HTA sarcina
• hipoTA ortostatica
• HTA episodica
• Disf. autonoma

CU TRATAMENT
• Eficienta terapeutica
• HTA rezistenta
Giusepe Mancia
Parametrii ABPM

TA -24 h (h 7.00-7.00)
TA diurna (h 7.00-22.00)
TA nocturna (h 22.00-7.00)
TA trezire (h 5.00-8.00)
TA max
TA min
TAM
PP
ID
FC
BP load
Index hiperbar
DS
COMPONENTA TONICA
TAS, TAD, TAM, BPload
COMPONENTA PULSATILA
PP
COMPONENTA FAZICA
ID, SD-TA 24h
FC -24 ore
ESH/ESC 2013
FORME CLINICE DE HTA (ABPM)
•
•
•
•
•
•

HTA de halat alb (WC-HT)
HTA diurna
HTA nocturna
HTA sustinuta
HTA episodica
Masked hypertension
Traseu ABPM normal
HTA de halat alb (WC-HT)

Andritoiu A. Hipertensiunea de halat alb-intre normal si patologic. Infomedica, 2001:10:12-16
PREVALENTA WC-HT

Bangash F- CJASN 2009;4:656-664
HTA diurna
HTA episodica
HTA sustinuta
HTA nocturna
HTA matinala
Morning surge

Morning BP surge: TAS medie in timpul celor 2 ore dupa trezire-TAS medie din timpul de 1 ora
surge
ce include cea mai scazuta TAS din timpul somnului (Kario K 2003)
Cresterea TAS>50 mmHg si/sau TAD>20 mmHg in intervalul 6.00-10.00a.m. (Marfella R 2003)
HTA sistolica (izolata)
Masket hypertension
PREVALENTA HTA MASCATA

Bangash F - CJASN 2009;4:656-664
Masket HT-subtipuri

• HTA matinala
• HTA diurna
• HTA nocturna

Kawano Y et al- Clin Exp Hypertens 2008;30(3):289-96
Caracteristicile pts cu Masket HT
•
•
•
•
•
•
•
•
•
•

Varsta tanara
Sex M,
Stress cotidian
Fumatori
Consumatori de alcool (seara)
Obezitate centrala
HTA ocazionala
Prehipertensivi
Pacienti cu scor mare de risc CV
Semne de afectare organe tinta cu TA normala la
cabinet
• Pacienti hipertensivi sub tratament

Poate precede HTA sustinuta
Lot - 46 adulti cu HTA la cabinet

40%

25%
20%
15%

WCH

episodica

diurna

sustinuta

Andritoiu A, 2000
HTA LA TINERI
Importanta metodei in expertiza medico-militara

Andritoiu A si colab. The significance of
high blood pressure in cardiovascular
pathology of young adults. The 4th Cong
BMMC 1999, Bucuresti
Andritoiu A. Monitorizarea ambulatorie a
A
tensiunii arteriale-aplicabilitate diagnostica si
prognostica. Rev Med Mil 1999;1107-126.
BP load
Definitie:
In 1988, the Mayo Clinic suggested the use of a BP load,
load
defined as the percentage of BP values exceeding a given
constant threshold,usually 140/90mm Hg for systolic/diastolic
BP during activity and 120/80mm Hg during resting hours.
The hyperbaric index (HBI), as a determinant of BP excess,
can be calculated as the total area of any given patient’s BP
above the threshold.
Stadializarea HTA dupa BP load
BP LOAD (%)
0- 5
5 - 15
15 - 25
25 - 75
75 -100

STADIU

%

normal

15

borderline
usoara
moderata
severa

35
20
25
5

Andritoiu A. Semnificatia parametrului BP load in evaluarea severitatii hipertensiunii.
Al 38-lea Cong Nat Cardiol 1999, Sinaia
Stadializarea HTA dupa BP load
BP load(%)

Grad

N=45

%

0-5

normal

10

22

6-15

borderline

12

27

16-25

usoara

5

11

26-75

moderata

10

22

76-100

severa

8

18
Andritoiu A, 2000
Valorile BP load fct tipul HTA (ABPM)

WC-HT

6.42+/-6.43

HTA episodica

10.76+/-9.85

HTA diurna

43.67+/-20.46

HTA sustinuta

77.64+/-22.79
N = 45 pacienti
Andritoiu A, 2000
Blood Pressure Load

HTA

27,2 +/- 25,8
HTA

n -TA

n -TA

2,1 +/- 3,3

0

5

10

15

20

25

30

Andritoiu A, 2000
Presiunea Pulsului (PP)
Definitie:
diferenta dintre presiunea sistolica si
presiunea diastolica: forta generata de
cord la fiecare contractie
PP: predictor de evenimente CV
mai bun decat TAS si/sau TAD izolate

TAS = 120 mmHg; TAD=80 mmHg; PP=40 mmHG
Componenta fazica - pulsatila (PP)

LOT I

LOT II

(hipertensivi)

(normali)

PP - 24 h 50,7 +/- 6,3
PP - day 51,5 +/- 6,4
PP - night 45,1 +/- 9,6

p<

50,8 +/- 4,7

NS

51,1 +/- 5,3

NS

48,9 +/- 4,0

NS

Creste semnificativ in HTA sistolica (ateromatoza Ao)
Andritoiu A, 2000
Variabilitatea TA in 24 h
• variabilitatea beat-to-beat
• variabilitatea measure-to-measure
Parametrul:
SD (TAS, TAD, TAM, PP)
Variabilitatea circadiana
• Definitie (ID index diurn):

Dipper vs. non-Dipper
ESH/ESC 2013
Forme de dipping
Dipping absent
(HTA nocturna)

ratio>1.0

Dipping moderat

0.9<ratio<1.0

Dipping

0.8<ratio<0.9

Dipping extrem

ratio<0.8

ESH/ESC 2013
Normotensiv-Dipper
Normotensiv non-Dipper

Hermida et al. Chronobiol Int 2013
Non-Dipper
Non-Dipping
•
•
•
•
•
•
•
•
•
•
•
•
•

Salt sensitive hypertension
HTA secundara
Disfunctie autonoma
Diabet zaharat
Sdr. de apnee in som
Sdr. Cushing
Feocromocitom
Hiperaldosteronismul primar
Virsta avansata (HT sistolica severa)
Etnicitate (rasa Afro-Americana)
Medicamente (ciclosporina, corticosteroizi)
Insuf. renala (dializati)
Insuf. cardiaca congestiva
VARIABILITATEA CIRCADIANA

LOT I

LOT II

(hipertensivi)

p<

(normali)

ID - TAM

15,5 +/- 8,5

13,8 +/- 6,4

ns

DS .TAS-24h

15,4 +/- 3,8

11,3 +/- 2,8

0,05

Andritoiu A, 2000
RELATIA CU TOD
VALOAREA PROGNOSTICA
Cresterea TAS-24h cu 1 mmHg este asociata unei cresteri
a riscului de mortalitate cardiovasculara de 4.7% !
Studii:
•
•
•
•

Perloff et al.- JAMA 1983:249:2792-2798.
Perloff D, Sokolow M, Cowan R, Juster RP – J Hypertens 1989;7(suppl):S3-S10.
Perloff D Sokolow M – J Hypertens 1990 (suppl):S105-S111.
Perloff D, Sokolow M, Cowan R – J Hypertens 1991 ;9 (suppl):S33-S39.

,, Average ambulatory BP was better correlated than office BP with the degree of
target-organ damage and the presence of cardiovascular complications”.
,,The patients with a low ambulatory BP, in relation to the level to the level
predicted from the office blood pressure, had a better prognostic, and were less
likely to develop clinical events over a 10-year period, than patients with higher
BP levels”
VALOAREA PROGNOSTICA A DATELOR ABPM
Studiu pe 3 ani
899 pts cu HTA esentiala vs 176 normotensivi
WCH ……………0,45 evenimente / 100pts / an
HTA ……………2,59 evenimente / 100 pts / an
Normo-TA………0,56 evenimente / 100 pts / an

•

Un traseu anormal de monitorizare TA ambulatorie a identificat 95%
dintre subiectii care aveau sa sufere un eveniment cardiovascular in
urmatorii 3,3 ani!
• Valoarea predictiva negativa a ABPM = 98% !

Verdecchia P. Al XII-lea Cong Cardiol;10-14 sept 1994, Berlin
Organele tinta in HTA

HT
A
Presiunile monitorizate pe 24h se coreleaza
cu o varietate de leziuni de organ
• scorul global al afectarii organelor tinta
•
•
•
•
•
•
•

masa VS (gradul HVS)
afectarea functiei VS
nivelul microalbuminuriei
hipertrofia peretelui arterial
distensibilitatea arterelor elastice
deteriorarea creierului (dementa vasculara)
retinopatie
Evaluarea afectarii unor tinte in HTA
(lot 800 pts)
78%

43%

22%
14%

FO I / I I

Placa ASC

HVS

Mi Alb

Cuspidi C, 2001
AF. ORG. TINTA (TOD)
(ABPM - 45 hipertensivi)

14
12
10
8
6
4
2
0
FO

HVS

E/A<1

CAR

AB

ALB

Andritoiu A, 2000
Ochiul in HTA
•
•
•
•

Retina (exudate, hemoragii)
Artere/vene (Sallus)
Tromboza VCR
Ocluzia ACR
Ocluzia ACR
Relatia ABPM – FO la un lot de 45 pacienti cu HTA

Hipertensiune

BP load

Grad 0/I

Grad II/III

WC-HT

6.42+/-6.43

12

0

Episodica

10.76+/-9.85

12

0

Diurna

43.67+/-20.46

2

4

Sustinuta

77.64+/-22.79

3

11

Andritoiu A, 2000
Relatia cu HVS (Eco)
TAS-24h si TAD 24h se coreleaza cu:

•
•
•
•
•
•

SIV+PPVS
PPVS
SIV+PPVS/DTDVS
h/r (HVS concentrica)
Masa VS
AS – cu TAD-24h

Prisant LM, Carr AA. 1990
Corelatia dintre masa VS (Eco) si TAS-24h
vs TAS determinata ocazional (cabinet)
Studiu
Rowlands
Devereux
Drayer
Kleinert
Prisant
Verdecchia

n
50
100
12
93
55
253

TAS -24h
0,60
0,50
0,81
0,26
0,50
0,48

TAS-cab
0,51
0,24
0,55
0,22
0,33
0,38
Principalii determinanti directi ai HVS
•
•
•
•
•

TA medie -24 h
TAS diurna
TAS la trezire
BP load
Var. presionala

•
•
•
•
•
•
•
•
•
•
•

Stresul de forfecare
Stresul parietal
IMC
Virsta
Sexul
Aportul de sodiu in dieta
Factori genetici
Viscozitatea singelui
Rezistenta la insulina
Ingestia cronica de alcool
Factori neuro-hormonali (catecolamine, angiotensina, renina)
Stroke in HTA
•
•
•
•

Dipper
Non-Dipper
Dipper extrem
Dipper inversat

Kario K et al. - Hypertension 2001
Arterele in HTA

Ax carotidian

Artera brahiala
Modificarile carotidiene in HTA

• Cresterea diametrului
• Ingrosarea CIMT
• Placi stenotice
Alterarea compliantei

Imbatrinire accelerata a axului carotidian !
100 pts hipertensivi
•

GROUP I

GROUP II

GROUP III

R-CCA
Dd

L-CCA

R-CCA

L-CCA

R-CCA

L-CCA

5,8+/-0.8

5,6+/-0.7

6,5+/-0.7

6.7+/-0,9

8,3+/-0.3

7.7+/-0,2

0,45+/-0,2

0,44+/-0,2

0,67+/-0,2

0,65+/-0,3

0,89+/-0,3

0,93+/-0.2

(mm)
IMTh
(mm)
% Plaques

28,5%

80%

% Segnif.stenosis

22 %

14%

Mean stenosis(%)

45+/-10,7 %

38+/-9,7%

Andritoiu Al. Modificari morfologice si functionale ale arterelor carotide comune in hipertensiune
comparativ cu imbatrinirea-studiu Eco-Doppler. A II-a Conf Nat Ultrasonografie , Craiova, 1999.
Distributia topografia a placilor ATS-CAR

GROUP II
CCA-middle
CCA-bulb
ICA
ECA
TOTAL

3
4
5
2
12

GROUP III
5
10
11
6
32

Andritoiu Al. Modificari morfologice si functionale ale arterelor carotide comune in hipertensiune
comparativ cu imbatrinirea-studiu Eco-Doppler. A II-a Conf Nat Ultrasonografie , Craiova, 1999.
Modificarile a. brahiale in HTA
Se coreleaza cu parametrii ABPM-24h si la trezire !
•
•
•

Cresterea in diametru/arie
Modificarea profilului spectral
Alterarea vasodilatatiei
- dependenta de endoteliu (Ach)
- independenta de endoteliu (NTG)

Andritoiu A, 2000
Profil spectral – a. brahiala
(largire spectrala)
Rinichiul in HTA
• Microalbuminurie (30-300 mg/24 h)
• microalbuminurie de efort
• proteinurie
valoare predictiva poz. ptr evenimente CV subsecvente
Metode de determinare
RIA/nefelometrie laser
Dipstick +2

CONSECINTE
• Nefroangioscleroza
• Insuficienta renala cr.
Cr. ser > 1,5 mg/dl
Cl. Cr < 60 ml/min
SCORUL AFECTARII ORGANELOR TINTA
• Ex. FO:
Std I ……………………………………. 1p.
Std.II……………………………………. 2p.
Std. III……………………………………3p.
• Prezenta HVS…………………………………..3p.
• Disfunctia VS diastolica (E/A <1) …………..2p.
• Ecografia carotidiana:
Diametrul >6.5 mm……………………….1p.
CIMT > 1mm………………..…………….1p.
Placi ……………………………………….2p.
• A. Brahiala (largire spectrala)…………………1p.
• Ex urina (albuminurie)………………………….2p.
SCOR Max. = 15p.
Andritoiu A, 2000
TOD - SCOR MEDIU
DIURNA vs SUSTINUTA vs WC-HT

6p

6
5

3.71p

4
3

1.33p

2
1
0

DIURNA

SUSTINUTA

WCH
Andritoiu A, 2000
CORELATII Scor TOD vs…

TAS
TAD
TAM
SBP load
DBP load
FC

R= 0.87
R= 0.72
R= 0.80
R= 0.74
R= 0.61
R= 0.23
PARAMETRII MONITORIZARII
TENSIONALE LA TREZIRE SI
AFECTAREA ORGANELOR TINTA IN
HTA
Andritoiu A. Al 41 Cong Nat Cardiol 2002, Sinaia
Relatia scor-TOD si parametrii ABPM la trezire
(lot 45 pacienti HT)
TAS

R= 0.87

TAD

R= 0.72

TAM

R= 0.80

SBP load

R= 0.74

DBP load

R= 0.61

FC

R= 0.23
Andritoiu A, 2002
MONITORIZAREA TA IN SARCINA
Hypertension in pregnancy, as diagnosed by ABPM, is
superior to the office measurement of BP in predicting
outcomes
ABPM in sarcina
Recomandata de:
de
Soc. Elvetiana de Hipertensiune
Soc. Franceza de Hipertensiune
Nerecomandata de:
de
Marea Britanie, SUA, Germania, Brazilia
Valorile normale (ABPM) in sarcina

Sapt.
TA diurna

9-17

18-22

26-30

>30

130/77

132/79

133/81

135/86
(Brown MA et colab. 1998)

Trim I

Trim II

Trim III

TA-24h

110/70

116/74

125/80

TA diurna

113/69

119/78

126/83

TA nocturna

100/71

113/73

111/78

(Gheorman V, Andritoiu A, Raca N 2002)
Profilul circadian al TAS, TAD, TAM, FC
in sarcina

Hermida RC, Hypertension 2001;38:746
Valorile medii
pe fiecare trimestru de sarcina
Parametru
ABPM

TRIM I

TRIM II

TRIM III

99.5+/-5.5

104.1+/-6

108.7+/-8.2

TAD 24 h

66.3+/-2.2

67.8+/-3

70.3+/-5.3

TAM 24 ore

77.8+/-9.7

79.6+/-10.2

86.8+/-12.4

TAS diurna

101.3+/-5.8

106.3+/-6

111.7+/-7.2

TAD diurna

66.8+/-1.2

69.3+/-4

72+/-5.6

TAM diurna

79.6+/-5.6

82.6+/-6.6

88.4+/-6.7

TAS nocturna

95.3+/-2.3

99+/-6.8

100.5+/-5.5

TAD nocturna

62.8+/-3.9

65.3+/-4

66.7+/-5.4

TAM nocturna

76.8+/-5.2

77.3+/-4.5

79.2+/-5.6

TAS 24 h

Andritoiu A, Raca N, Gheorman V.- Metode noi in predictia preeclampsiei. Ed. Info, Craiova, 2007.
Limita cut-off
Parametru
ABPM

TRIM I

TRIM II

TRIM III

TA – 24 h

110.5/70

116/74

125/80

TA diurna

113/69

119/78

126/83

TA nocturna

100/71

113/73

111/78

140
120

125

116

110.5

100
80

74

70

80

60
40
20
0
TRIM I

TRIM II
TAS

TRIM III

TAD

Andritoiu A, 2006
PP – presiunea pulsului
(TAS-TAD)
Parametru
42
ABPM

TRIM I

TRIM II

33.5+/-5.5

36.1+/-6

33.3+/-5.8

36.1 36.3+/-6

40.2+/-7.2

PP nocturn 33.5 33.3+/-2.3
34

34.2+/-6

33.5+/-5.5

40

PP 24 ore
PP-24 ore

38

PP diurn
36

TRIM III
38.5

38.5+/-8.2

32
30
TRIM. I

TRIM. II

TRIM. III

virsta sarcinii

Andritoiu A, 2006
Sarcina de presiune
(BP load)

Parametrul
ABPM

TRIM I

TRIM II

TRIM III

SBP load

3.2+/-0.05

6.2+/-0.05

7.5+/-0.02

DBP load

3.3+/-0.08

4.6.+/-0.06

5.5+/-0.03

Andritoiu A, 2006
Frequency distribution of maximum BP load from normotensive pregnant women (top)
and women with a final diagnosis of gestational hypertension or preeclampsia (bottom)
sampled in different trimesters of pregnancy.

Hermida R C - Hypertension 2001;38:723-729
Parametrii ABPM
intervalul de trezire (h 5.00-8.00 am)

Parametru
ABPM

TRIM I

TRIM II

TRIM III

TAS

103.5 +/-12.2

106.6+/-11.3

114.5+/-10.9

TAD

69+/- 11.3

72+/- 13.6

76+/-13.2

TAM

78.6 +/-3.2

83 +/-3.3

88 +/-3.6

FC

72.6+/-8.9

86.6+/-11.2

86.7+/-10.2

Andritoiu A, 2006
Relatia TA clinica -TA ambulatorie

Normal Probability Plot

Normal Probability Plot

196

Variables
TAS CAB
TAS DIURNA

176

124

Variables
TAD DIURNA
TAD CAB

114
104

156

94
136

84

116

74

96

64
0.1

1

5

20

50
percentage

TAS

80

95

99

99.9

0.1

1

5

20

50

80

95

99

99.9

percentage

TAD

Andritoiu A, 2006
Subgrupuri de risc
•
•
•
•

WC-HT
HTG
PE
NORM

40
35

35
30
25
20
15

13
8

10

9

HTG

PE

5
0
NORM

WCH

Andritoiu A, 2006
Parametrii presionali

TA cabinet @ cele 4 subgrupe
n

TA - 24 ore @ cele 4 subgrupuri
n

180

160

160

140

140

120
mmHg

mmHg

120
100
80
60

100
80
60

40

40

20

20

0

0
NORM

WCH

HTG
subgrup

PE

TAS cab
TAD cab

NORM

WCH

HTG

PE

TAS 24 ore
TAD 24 ore

subgrup

Diferente semnificative statistic s-au observat intre subgrupul PE si
subgrupurile NORM si WCH (p <0.001), cit si intre subgrupul PE si
subgrupul HTG (p=0.01).
Andritoiu A, 2006
TAM-24 ore

TAM - 24 ore @ cele 4 subgrupuri
n
120
100
mmHg

80
60
40
20
0
NORM

WCH

HTG
subgrup

PE
TAM -24 ore

Diferente s-au inregistrat intre subgrupul PE si subgrupurile NORM si
WCH (p<0.001), inclusiv intre PE si HTG (p = 0.004).
Andritoiu A, 2006
TA diurna si TA nocturna in cele 4 subgrupuri

TA diurn[ @ cele 4 subgrupuri
n

TA nocturn[ @ cele 4 subgrupuri
n
140

140

120

120

100

100

mmHg

mmHg

160

80
60

80
60

40

40

20

20

0

0
NORM

WCH
subgrup

HTG

PE

TAS diurna
TAD diurna

Diferente statistice s-au remarcat
intre subgrupul PE si NORM, WCH
(p<0.001), inclusiv intre PE si HTG
(p=0.01).

NORM

WCH
subgrup

HTG

PE

TAS nocturna
TAD nocturna

Diferente statistice s-au remarcat intre
subgrupurile PE si NORM si WCH (p<0.001)
cit si intre PE si HTG (p =0.01).
Andritoiu A, 2006
WC-HT
hipertensiunea de halat alb
AU

ACM

A OFT

WCH

NORM

WCH

NORM

WCH

NORM

IP

0.78

0.76

0.88

0.87

1.15

1.18

IR

0.55

0.53

0.58

0.57

0.67

0.66

S/D

2.3

2.2

2.2

2.2

2.8

2.7

Parametrii ABPM

FC - 24 ore
WCH vs NORM
bpm

88
86

mmHg

WCH vs NORM
180
160
140
120
100
80
60
40
20
0
TAS
CAB

84
82
80

TAD
CAB

TAS 24 TAD 24 TAM 24 TAS
TAD
TAS
H
H
H
DIURN DIURN NOCT

WCH

78

TAD
NOCT

NORM

76
WCH

NORM

Andritoiu A, 2006
HTG
hipertensiune gestationala
AU

ACM

A OFT

HTG

NORM

HTG

NORM

HTG

NORM

IP

1.11

0.76

0.94

0.87

1.02

1.18

IR

0.63

0.53

0.59

0.57

0.65

0.66

S/D

2.6

2.2

2.4

2.2

2.9

2.7

mmHg

Parametrii ABPM
HTG vs NORM

FC - 24 ore
HTG vs NORM
bpm 100
90
80
70
60
50
40
30
20
10
0

180
160
140
120
100
80
60
40
20
0
TAS
CAB

TAD
CAB

TAS 24 TAD 24 TAM 24 TAS
TAD
TAS
H
H
H
DIURN DIURN NOCT

HTG

HTG

TAD
NOCT

NORM

NORM

Andritoiu A, 2006
PE - preeclampsie
Distribuia valorilor TA @ subgrupul PE
n

AU

ACM

180

A OFT

160
140

NORM

PE

NORM

PE

NORM

mmHg

120

PE

100
80
60

IP

1.74

0.76

0.83

0.87

1.01

IR

0.75

0.53

0.58

0.67

0.61

0.66

S/D

3.75

2.2

2.2

2.2

2.5

40

1.18

2.7

20
0
1

NORM

4

5

6

7

8

9

TAS 24 H
TAD 24 H

Parametrii ABPM
PE vs NORM

mmHg
HTG

3

nr. paciente

FC - 24 ore
PE vs NORM
bpm 100
90
80
70
60
50
40
30
20
10
0

2

180
160
140
120
100
80
60
40
20
0
TAS
CAB

TAD
CAB

TAS 24 TAD 24 TAM 24 TAS
TAD
TAS
H
H
H
DIURN DIURN NOCT

PE

TAD
NOCT

NORM

Andritoiu A, 2006
Andritoiu A, 2006
NORM
AU

ACM

A OFT

REF

NORM

REF

NORM

REF

NORM

IP

0.78

0.76

0.94

0.87

1.24

1.18

IR

0.55

0.53

0.59

0.57

0.72

0.66

S/D

2.3

2.2

2.5

2.2

2.9

2.7

Parametrii presionali
NORM vs REF

FC - 24 ore

140

NORM vs REF

120

NORM
REF

100
mmHg

95
85

bpm

75

80
60

65

40

55

20

45

0
TAS
CAB

35
25
NORM

TAD
CAB

TAS
24H

TAD
24H

TAM
24H

TAS
TAD
DIURN DIURN

TAS
NOCT

TAD
NOCT

TAM
NOCT

REF

Andritoiu A, 2006
Corelatiile stabilite intre parametrii determinati prin
ABPM si PE
in grupul cu risc crescut

Parametru ABPM

r=

p<

TAS-24 ore

0.68

0.001

TAD-24 ore

0.72

0.001

TAM -24 ore

0.71

0.001

TAS diurna

0.69

0.001

TAD diurna

0.72

0.001

TAS nocturna

0.63

0.001

TAD nocturna

0.70

0.001

FC-24 ore

-0.24

NS

Andritoiu A, 2006
TAM-24 ore >100 mmHg
Sb %

66.66

Sp %

89.28

VP(+) %

50

VP(-) %

94.33

AC %

86

RR

10
Andritoiu A, 2006
PROFILUL CIRCADIAN AL HTA
Sb%
Sp%

55.55
96.42

VP(+) %

71.42

VP(-) %
AC %
RR

93.1
90.77
10.44

Corelatia dintre profilul non-dipper si rata aparitiei PE
r = 0.71; p<0.001
Andritoiu A, 2006
Scorul de risc preeclamptic
Variabila

Punctaj

Clinic
Cel puin un factor derisc (diabet, primiparitate,
varsta =>35 ani, antec. PE sau fat mort)

1 p.

TAD cabinet =>100 mmHg

1p

Doppler
IR-a uterina >0.6

1p.

S/D a. uterina >2.4

1p.

Notch grad 1, 2, 3,

1p, 2p, 3p.

Notch bilateral

x 2 p.

Notch absent

0p.

IR <0.5 aa. cerebrale materne

1 p.

ABPM
TAM-24 ore >100 mmHg

1

TAD nocturna > 75 mmHg

1

Profil non-dipper

1

Scor maxim de risc

14

Andritoiu A, 2006
SCOR DE RISC PREECLAMPTIC
puncte

11.55
12
10
8
4.87

6
4

1.61

1.17

NORM

WCH

2
0

HTG

PE

Plot of Fitted Model
PE = -0.0938699 + 0.0736661*SCOR
1
0.8

PE

0.6
0.4
0.2
0
0

3

6

9

12

15

SCOR

Andritoiu A, 2006
CRONOFARMACOLOGIA
HIPERTENSIUNII ARTERIALE
Ceasul biologic - master clock

• Complex de gene
• Arie speciala in
cortex
• Nc. suprachiasmatic
• Locus ceruleus
Rolul SN autonom - baroreflexe

Melatonina-mesager endogen
The cardiovascular system is highly organised in time
Lemmer B. - Pharmacol Ther 2006

•
•
•
•
•

TA
FC
RVP
DC
Hh vasoactivi

CA, SRAA, Et-1, AMPc
Definitii
• Chronobiologia –stiinta preocupata de mecanismele
biologice ale bolilor in relatie cu o structura temporala;
• Chronoterapia (cronofarmacologia): disciplina ce
studiaza efectul farmacologic al medicamentelor in relatie
cu comportamnetul bolii pe o anume perioada de timp.
• Cronofarmacokinetica
• Cronofarmacodinamia
Cronofarmacokinetica
• Absorbtia
• Distributia
• Secretiile gastro-dd
• Golirea gastrica
• Metabolizarea
• Eliminarea renala

Cronofarmacodinamie
• Efecte diferite pe
intervalul 24 ore
• Momentul
administrarii poate
modifica rap.
doza/concentratie

Cronotoxicitate
Cronoterapia
hipertensiunii arteriale
Concepte

Homeostazic
•

Mediul intern ramine
constant

Cum tratam ?

Cronobiologic
• Variatii (cicluri)
circadiene
Cand tratam ?
Obiectivele cronoterapiei in HTA

concentratii mai mari atunci cind este mai multa
nevoie (e.x: perioada post-trezire) si mai mici cind
nevoile sunt mai reduse (e.g., in intervalul de
somn nocturn)
•
•
•

Normalizarea valorilor TA pe intreg intervalul circadian
Reducerea riscului cardio-vascular
Imbunatatirea/normalizarea profilului circadian al TA (dipper)
Morning versus evening dosing of a once-daily agent !
Studii
Morning vs evening dosing
ACE inhibitors
• quinapril, enalapril, benazepril, perindopril
BRA
• valsartan
Beta-blockers
• Atenolol, propranolol MR
Calcium channel blockers
• nifedipine-GITS
Depinde de formularea farmaceutica
Instant vs ER
• amlodipine
• isradipine
• nitrendipine
• ditizem
• verapamil COER
The impact of dosing time on the response to
antihypertensive therapy

• circadian patterns were generally unchanged
when comparing morning vs evening
administration of a variety of
antihypertensive agents
• nocturnal medication dosing generally
reduced asleep BP more than morning
dosing

Lemmer B. Blood Press Monit 1999;1:161-169.
Morning vs Evening dosing
Control TA diurn vs. nocturn

Prestance (5/5)

Non-control
Non-control TA nocturna

IECA

Non-control
Ce ne rezerva viitorul ....
trialuri clinice comparative ptr. a evalua
efectele antihipertensivelor
homeostatice vs cronoterapeutice pe
end-pointurile clinice ( imbunatatirea
controlului TA, QOL, ischemiei
miocardice si performantelor
miocardice)
Presedinte
Conf. Horia Balan
ABPM ACCURACY (1381 readings)

17%
83%

Andritoiu A , 2003
Studii personale
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.

Andritoiu A si colab. Monitorizarea automata pe 24 h a tensiunii arteriale. Studiu pe 20
pacienti tineri hipertensivi comparativ cu normalul. Al 37 Cong Nat Cardiol, 1998, Sinaia
Andritoiu A si colab. Parametrii de presiune arteriala evaluati prin computerizare automata
24h la un grup de pacienti cu hipertensiune arteriala. Al 37-lea Cong Nat Cardiol 1998, Sinaia
Andritoiu A si colab. Monitorizarea automata 24h a tensiunii arteriale (ABPM). A 3-a Conf Nat
Semiol Med 1998, Craiova
Andritoiu A. Semnificatia diagnostica si prognostica a monitorizarii ambulatorii a tensiunii
arteriale. Infomedica 1999;8:2-9.
Andritoiu A. Semnificatia parametrului BP load in evaluarea severitatii hipertensiunii. Al 38-lea
Cong Nat Cardiol 1999, Sinaia
Andritoiu A si colab. The significance of high blood pressure in cardiovascular pathology of
young adults. The 4th Cong BMMC 1999, Bucuresti
Andritoiu A. Monitorizarea ambulatorie a tensiunii arteriale-aplicabilitate diagnostica si
prognostica. Rev Med Mil 1999;1107-126.
Andritoiu A. Hipertensiunea de halat alb - intre normal si patologic. Infomedica 2001;10:12-16.
Andritoiu A. Complianta terapeutica in managementul hipertensiunii arteriale. Rev Med Mil
2001;2:195-206.
Andritoiu A. Parametrii monitorizarii tensionale la trezire si afectarea organelor tinta in HTA. Al
41-lea Cong Nat Cardiol 2002, Sinaia
Andritoiu A. Monitorizarea ambulatorie a TA – relatia cu afectarea organelor tinta in HTA. Al
41-lea Cong Nat Cardiol 2002, Sinaia
Raca N, Gheorman V, Andritoiu A. Parametrii ABPM in sarcina normala. Al 2-lea Cong Nat
Obst-Ginecologie, 2002, Bucuresti
2004
ABPM-AMBULATORY BP MONITORING

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ABPM-AMBULATORY BP MONITORING

  • 1. MONITORIZAREA AMBULATORIE A TENSIUNII ARTERIALE DE LA CERCETARE LA APLICABILITATEA CLINICA Alexandru Andritoiu Sp. Clinic de Urgenta Militar Craiova Sectia Medicina Interna
  • 2. 1961 Moto: ,, Blood pressure is a quantity with a very large range…hypertension is a quantitative disease,, Sir George White Pickering (1904-1980) 1968
  • 3. Office BP vs. Out-of-Office BP • Office BP TA de cabinet • Out-of-Office BP ABPM Auto-masurarea TA la domiciliu ESH/ESC 2013
  • 4. TEHNICI DE MONITORIZARE TA Non-invazive • ABPM ambulatory blood pressure monitoring • HBPM home blood pressure monitoring Invazive • Manometrie I.A.
  • 5. Metode ABPM • Metoda oscilometrica • Metoda auscultatorie • Metoda pletismografica Protocoale de validare AAMI (1990) si BHS (1993)
  • 8. Indicatii FARA TRATAMENT • HTHA (WCH) • HTA borderline • HTA refractara • HTA secundara • HTA sarcina • hipoTA ortostatica • HTA episodica • Disf. autonoma CU TRATAMENT • Eficienta terapeutica • HTA rezistenta
  • 9.
  • 11.
  • 12. Parametrii ABPM TA -24 h (h 7.00-7.00) TA diurna (h 7.00-22.00) TA nocturna (h 22.00-7.00) TA trezire (h 5.00-8.00) TA max TA min TAM PP ID FC BP load Index hiperbar DS
  • 13. COMPONENTA TONICA TAS, TAD, TAM, BPload COMPONENTA PULSATILA PP COMPONENTA FAZICA ID, SD-TA 24h FC -24 ore
  • 15.
  • 16. FORME CLINICE DE HTA (ABPM) • • • • • • HTA de halat alb (WC-HT) HTA diurna HTA nocturna HTA sustinuta HTA episodica Masked hypertension
  • 18. HTA de halat alb (WC-HT) Andritoiu A. Hipertensiunea de halat alb-intre normal si patologic. Infomedica, 2001:10:12-16
  • 19. PREVALENTA WC-HT Bangash F- CJASN 2009;4:656-664
  • 25. Morning surge Morning BP surge: TAS medie in timpul celor 2 ore dupa trezire-TAS medie din timpul de 1 ora surge ce include cea mai scazuta TAS din timpul somnului (Kario K 2003) Cresterea TAS>50 mmHg si/sau TAD>20 mmHg in intervalul 6.00-10.00a.m. (Marfella R 2003)
  • 28. PREVALENTA HTA MASCATA Bangash F - CJASN 2009;4:656-664
  • 29. Masket HT-subtipuri • HTA matinala • HTA diurna • HTA nocturna Kawano Y et al- Clin Exp Hypertens 2008;30(3):289-96
  • 30. Caracteristicile pts cu Masket HT • • • • • • • • • • Varsta tanara Sex M, Stress cotidian Fumatori Consumatori de alcool (seara) Obezitate centrala HTA ocazionala Prehipertensivi Pacienti cu scor mare de risc CV Semne de afectare organe tinta cu TA normala la cabinet • Pacienti hipertensivi sub tratament Poate precede HTA sustinuta
  • 31. Lot - 46 adulti cu HTA la cabinet 40% 25% 20% 15% WCH episodica diurna sustinuta Andritoiu A, 2000
  • 32. HTA LA TINERI Importanta metodei in expertiza medico-militara Andritoiu A si colab. The significance of high blood pressure in cardiovascular pathology of young adults. The 4th Cong BMMC 1999, Bucuresti Andritoiu A. Monitorizarea ambulatorie a A tensiunii arteriale-aplicabilitate diagnostica si prognostica. Rev Med Mil 1999;1107-126.
  • 33. BP load Definitie: In 1988, the Mayo Clinic suggested the use of a BP load, load defined as the percentage of BP values exceeding a given constant threshold,usually 140/90mm Hg for systolic/diastolic BP during activity and 120/80mm Hg during resting hours. The hyperbaric index (HBI), as a determinant of BP excess, can be calculated as the total area of any given patient’s BP above the threshold.
  • 34. Stadializarea HTA dupa BP load BP LOAD (%) 0- 5 5 - 15 15 - 25 25 - 75 75 -100 STADIU % normal 15 borderline usoara moderata severa 35 20 25 5 Andritoiu A. Semnificatia parametrului BP load in evaluarea severitatii hipertensiunii. Al 38-lea Cong Nat Cardiol 1999, Sinaia
  • 35. Stadializarea HTA dupa BP load BP load(%) Grad N=45 % 0-5 normal 10 22 6-15 borderline 12 27 16-25 usoara 5 11 26-75 moderata 10 22 76-100 severa 8 18 Andritoiu A, 2000
  • 36. Valorile BP load fct tipul HTA (ABPM) WC-HT 6.42+/-6.43 HTA episodica 10.76+/-9.85 HTA diurna 43.67+/-20.46 HTA sustinuta 77.64+/-22.79 N = 45 pacienti Andritoiu A, 2000
  • 37. Blood Pressure Load HTA 27,2 +/- 25,8 HTA n -TA n -TA 2,1 +/- 3,3 0 5 10 15 20 25 30 Andritoiu A, 2000
  • 38.
  • 39.
  • 40. Presiunea Pulsului (PP) Definitie: diferenta dintre presiunea sistolica si presiunea diastolica: forta generata de cord la fiecare contractie PP: predictor de evenimente CV mai bun decat TAS si/sau TAD izolate TAS = 120 mmHg; TAD=80 mmHg; PP=40 mmHG
  • 41. Componenta fazica - pulsatila (PP) LOT I LOT II (hipertensivi) (normali) PP - 24 h 50,7 +/- 6,3 PP - day 51,5 +/- 6,4 PP - night 45,1 +/- 9,6 p< 50,8 +/- 4,7 NS 51,1 +/- 5,3 NS 48,9 +/- 4,0 NS Creste semnificativ in HTA sistolica (ateromatoza Ao) Andritoiu A, 2000
  • 42. Variabilitatea TA in 24 h • variabilitatea beat-to-beat • variabilitatea measure-to-measure Parametrul: SD (TAS, TAD, TAM, PP)
  • 43. Variabilitatea circadiana • Definitie (ID index diurn): Dipper vs. non-Dipper ESH/ESC 2013
  • 44. Forme de dipping Dipping absent (HTA nocturna) ratio>1.0 Dipping moderat 0.9<ratio<1.0 Dipping 0.8<ratio<0.9 Dipping extrem ratio<0.8 ESH/ESC 2013
  • 45.
  • 47. Normotensiv non-Dipper Hermida et al. Chronobiol Int 2013
  • 48.
  • 49.
  • 51. Non-Dipping • • • • • • • • • • • • • Salt sensitive hypertension HTA secundara Disfunctie autonoma Diabet zaharat Sdr. de apnee in som Sdr. Cushing Feocromocitom Hiperaldosteronismul primar Virsta avansata (HT sistolica severa) Etnicitate (rasa Afro-Americana) Medicamente (ciclosporina, corticosteroizi) Insuf. renala (dializati) Insuf. cardiaca congestiva
  • 52.
  • 53. VARIABILITATEA CIRCADIANA LOT I LOT II (hipertensivi) p< (normali) ID - TAM 15,5 +/- 8,5 13,8 +/- 6,4 ns DS .TAS-24h 15,4 +/- 3,8 11,3 +/- 2,8 0,05 Andritoiu A, 2000
  • 55. VALOAREA PROGNOSTICA Cresterea TAS-24h cu 1 mmHg este asociata unei cresteri a riscului de mortalitate cardiovasculara de 4.7% ! Studii: • • • • Perloff et al.- JAMA 1983:249:2792-2798. Perloff D, Sokolow M, Cowan R, Juster RP – J Hypertens 1989;7(suppl):S3-S10. Perloff D Sokolow M – J Hypertens 1990 (suppl):S105-S111. Perloff D, Sokolow M, Cowan R – J Hypertens 1991 ;9 (suppl):S33-S39. ,, Average ambulatory BP was better correlated than office BP with the degree of target-organ damage and the presence of cardiovascular complications”. ,,The patients with a low ambulatory BP, in relation to the level to the level predicted from the office blood pressure, had a better prognostic, and were less likely to develop clinical events over a 10-year period, than patients with higher BP levels”
  • 56. VALOAREA PROGNOSTICA A DATELOR ABPM Studiu pe 3 ani 899 pts cu HTA esentiala vs 176 normotensivi WCH ……………0,45 evenimente / 100pts / an HTA ……………2,59 evenimente / 100 pts / an Normo-TA………0,56 evenimente / 100 pts / an • Un traseu anormal de monitorizare TA ambulatorie a identificat 95% dintre subiectii care aveau sa sufere un eveniment cardiovascular in urmatorii 3,3 ani! • Valoarea predictiva negativa a ABPM = 98% ! Verdecchia P. Al XII-lea Cong Cardiol;10-14 sept 1994, Berlin
  • 57.
  • 58. Organele tinta in HTA HT A
  • 59. Presiunile monitorizate pe 24h se coreleaza cu o varietate de leziuni de organ • scorul global al afectarii organelor tinta • • • • • • • masa VS (gradul HVS) afectarea functiei VS nivelul microalbuminuriei hipertrofia peretelui arterial distensibilitatea arterelor elastice deteriorarea creierului (dementa vasculara) retinopatie
  • 60. Evaluarea afectarii unor tinte in HTA (lot 800 pts) 78% 43% 22% 14% FO I / I I Placa ASC HVS Mi Alb Cuspidi C, 2001
  • 61. AF. ORG. TINTA (TOD) (ABPM - 45 hipertensivi) 14 12 10 8 6 4 2 0 FO HVS E/A<1 CAR AB ALB Andritoiu A, 2000
  • 62. Ochiul in HTA • • • • Retina (exudate, hemoragii) Artere/vene (Sallus) Tromboza VCR Ocluzia ACR Ocluzia ACR
  • 63. Relatia ABPM – FO la un lot de 45 pacienti cu HTA Hipertensiune BP load Grad 0/I Grad II/III WC-HT 6.42+/-6.43 12 0 Episodica 10.76+/-9.85 12 0 Diurna 43.67+/-20.46 2 4 Sustinuta 77.64+/-22.79 3 11 Andritoiu A, 2000
  • 64. Relatia cu HVS (Eco) TAS-24h si TAD 24h se coreleaza cu: • • • • • • SIV+PPVS PPVS SIV+PPVS/DTDVS h/r (HVS concentrica) Masa VS AS – cu TAD-24h Prisant LM, Carr AA. 1990
  • 65. Corelatia dintre masa VS (Eco) si TAS-24h vs TAS determinata ocazional (cabinet) Studiu Rowlands Devereux Drayer Kleinert Prisant Verdecchia n 50 100 12 93 55 253 TAS -24h 0,60 0,50 0,81 0,26 0,50 0,48 TAS-cab 0,51 0,24 0,55 0,22 0,33 0,38
  • 66. Principalii determinanti directi ai HVS • • • • • TA medie -24 h TAS diurna TAS la trezire BP load Var. presionala • • • • • • • • • • • Stresul de forfecare Stresul parietal IMC Virsta Sexul Aportul de sodiu in dieta Factori genetici Viscozitatea singelui Rezistenta la insulina Ingestia cronica de alcool Factori neuro-hormonali (catecolamine, angiotensina, renina)
  • 67. Stroke in HTA • • • • Dipper Non-Dipper Dipper extrem Dipper inversat Kario K et al. - Hypertension 2001
  • 68. Arterele in HTA Ax carotidian Artera brahiala
  • 69. Modificarile carotidiene in HTA • Cresterea diametrului • Ingrosarea CIMT • Placi stenotice Alterarea compliantei Imbatrinire accelerata a axului carotidian !
  • 70. 100 pts hipertensivi • GROUP I GROUP II GROUP III R-CCA Dd L-CCA R-CCA L-CCA R-CCA L-CCA 5,8+/-0.8 5,6+/-0.7 6,5+/-0.7 6.7+/-0,9 8,3+/-0.3 7.7+/-0,2 0,45+/-0,2 0,44+/-0,2 0,67+/-0,2 0,65+/-0,3 0,89+/-0,3 0,93+/-0.2 (mm) IMTh (mm) % Plaques 28,5% 80% % Segnif.stenosis 22 % 14% Mean stenosis(%) 45+/-10,7 % 38+/-9,7% Andritoiu Al. Modificari morfologice si functionale ale arterelor carotide comune in hipertensiune comparativ cu imbatrinirea-studiu Eco-Doppler. A II-a Conf Nat Ultrasonografie , Craiova, 1999.
  • 71. Distributia topografia a placilor ATS-CAR GROUP II CCA-middle CCA-bulb ICA ECA TOTAL 3 4 5 2 12 GROUP III 5 10 11 6 32 Andritoiu Al. Modificari morfologice si functionale ale arterelor carotide comune in hipertensiune comparativ cu imbatrinirea-studiu Eco-Doppler. A II-a Conf Nat Ultrasonografie , Craiova, 1999.
  • 72. Modificarile a. brahiale in HTA Se coreleaza cu parametrii ABPM-24h si la trezire ! • • • Cresterea in diametru/arie Modificarea profilului spectral Alterarea vasodilatatiei - dependenta de endoteliu (Ach) - independenta de endoteliu (NTG) Andritoiu A, 2000
  • 73. Profil spectral – a. brahiala (largire spectrala)
  • 74. Rinichiul in HTA • Microalbuminurie (30-300 mg/24 h) • microalbuminurie de efort • proteinurie valoare predictiva poz. ptr evenimente CV subsecvente Metode de determinare RIA/nefelometrie laser Dipstick +2 CONSECINTE • Nefroangioscleroza • Insuficienta renala cr. Cr. ser > 1,5 mg/dl Cl. Cr < 60 ml/min
  • 75. SCORUL AFECTARII ORGANELOR TINTA • Ex. FO: Std I ……………………………………. 1p. Std.II……………………………………. 2p. Std. III……………………………………3p. • Prezenta HVS…………………………………..3p. • Disfunctia VS diastolica (E/A <1) …………..2p. • Ecografia carotidiana: Diametrul >6.5 mm……………………….1p. CIMT > 1mm………………..…………….1p. Placi ……………………………………….2p. • A. Brahiala (largire spectrala)…………………1p. • Ex urina (albuminurie)………………………….2p. SCOR Max. = 15p. Andritoiu A, 2000
  • 76. TOD - SCOR MEDIU DIURNA vs SUSTINUTA vs WC-HT 6p 6 5 3.71p 4 3 1.33p 2 1 0 DIURNA SUSTINUTA WCH Andritoiu A, 2000
  • 77. CORELATII Scor TOD vs… TAS TAD TAM SBP load DBP load FC R= 0.87 R= 0.72 R= 0.80 R= 0.74 R= 0.61 R= 0.23
  • 78. PARAMETRII MONITORIZARII TENSIONALE LA TREZIRE SI AFECTAREA ORGANELOR TINTA IN HTA Andritoiu A. Al 41 Cong Nat Cardiol 2002, Sinaia
  • 79. Relatia scor-TOD si parametrii ABPM la trezire (lot 45 pacienti HT) TAS R= 0.87 TAD R= 0.72 TAM R= 0.80 SBP load R= 0.74 DBP load R= 0.61 FC R= 0.23 Andritoiu A, 2002
  • 81.
  • 82. Hypertension in pregnancy, as diagnosed by ABPM, is superior to the office measurement of BP in predicting outcomes
  • 83. ABPM in sarcina Recomandata de: de Soc. Elvetiana de Hipertensiune Soc. Franceza de Hipertensiune Nerecomandata de: de Marea Britanie, SUA, Germania, Brazilia
  • 84. Valorile normale (ABPM) in sarcina Sapt. TA diurna 9-17 18-22 26-30 >30 130/77 132/79 133/81 135/86 (Brown MA et colab. 1998) Trim I Trim II Trim III TA-24h 110/70 116/74 125/80 TA diurna 113/69 119/78 126/83 TA nocturna 100/71 113/73 111/78 (Gheorman V, Andritoiu A, Raca N 2002)
  • 85. Profilul circadian al TAS, TAD, TAM, FC in sarcina Hermida RC, Hypertension 2001;38:746
  • 86. Valorile medii pe fiecare trimestru de sarcina Parametru ABPM TRIM I TRIM II TRIM III 99.5+/-5.5 104.1+/-6 108.7+/-8.2 TAD 24 h 66.3+/-2.2 67.8+/-3 70.3+/-5.3 TAM 24 ore 77.8+/-9.7 79.6+/-10.2 86.8+/-12.4 TAS diurna 101.3+/-5.8 106.3+/-6 111.7+/-7.2 TAD diurna 66.8+/-1.2 69.3+/-4 72+/-5.6 TAM diurna 79.6+/-5.6 82.6+/-6.6 88.4+/-6.7 TAS nocturna 95.3+/-2.3 99+/-6.8 100.5+/-5.5 TAD nocturna 62.8+/-3.9 65.3+/-4 66.7+/-5.4 TAM nocturna 76.8+/-5.2 77.3+/-4.5 79.2+/-5.6 TAS 24 h Andritoiu A, Raca N, Gheorman V.- Metode noi in predictia preeclampsiei. Ed. Info, Craiova, 2007.
  • 87. Limita cut-off Parametru ABPM TRIM I TRIM II TRIM III TA – 24 h 110.5/70 116/74 125/80 TA diurna 113/69 119/78 126/83 TA nocturna 100/71 113/73 111/78 140 120 125 116 110.5 100 80 74 70 80 60 40 20 0 TRIM I TRIM II TAS TRIM III TAD Andritoiu A, 2006
  • 88. PP – presiunea pulsului (TAS-TAD) Parametru 42 ABPM TRIM I TRIM II 33.5+/-5.5 36.1+/-6 33.3+/-5.8 36.1 36.3+/-6 40.2+/-7.2 PP nocturn 33.5 33.3+/-2.3 34 34.2+/-6 33.5+/-5.5 40 PP 24 ore PP-24 ore 38 PP diurn 36 TRIM III 38.5 38.5+/-8.2 32 30 TRIM. I TRIM. II TRIM. III virsta sarcinii Andritoiu A, 2006
  • 89. Sarcina de presiune (BP load) Parametrul ABPM TRIM I TRIM II TRIM III SBP load 3.2+/-0.05 6.2+/-0.05 7.5+/-0.02 DBP load 3.3+/-0.08 4.6.+/-0.06 5.5+/-0.03 Andritoiu A, 2006
  • 90. Frequency distribution of maximum BP load from normotensive pregnant women (top) and women with a final diagnosis of gestational hypertension or preeclampsia (bottom) sampled in different trimesters of pregnancy. Hermida R C - Hypertension 2001;38:723-729
  • 91. Parametrii ABPM intervalul de trezire (h 5.00-8.00 am) Parametru ABPM TRIM I TRIM II TRIM III TAS 103.5 +/-12.2 106.6+/-11.3 114.5+/-10.9 TAD 69+/- 11.3 72+/- 13.6 76+/-13.2 TAM 78.6 +/-3.2 83 +/-3.3 88 +/-3.6 FC 72.6+/-8.9 86.6+/-11.2 86.7+/-10.2 Andritoiu A, 2006
  • 92. Relatia TA clinica -TA ambulatorie Normal Probability Plot Normal Probability Plot 196 Variables TAS CAB TAS DIURNA 176 124 Variables TAD DIURNA TAD CAB 114 104 156 94 136 84 116 74 96 64 0.1 1 5 20 50 percentage TAS 80 95 99 99.9 0.1 1 5 20 50 80 95 99 99.9 percentage TAD Andritoiu A, 2006
  • 94. Parametrii presionali TA cabinet @ cele 4 subgrupe n TA - 24 ore @ cele 4 subgrupuri n 180 160 160 140 140 120 mmHg mmHg 120 100 80 60 100 80 60 40 40 20 20 0 0 NORM WCH HTG subgrup PE TAS cab TAD cab NORM WCH HTG PE TAS 24 ore TAD 24 ore subgrup Diferente semnificative statistic s-au observat intre subgrupul PE si subgrupurile NORM si WCH (p <0.001), cit si intre subgrupul PE si subgrupul HTG (p=0.01). Andritoiu A, 2006
  • 95. TAM-24 ore TAM - 24 ore @ cele 4 subgrupuri n 120 100 mmHg 80 60 40 20 0 NORM WCH HTG subgrup PE TAM -24 ore Diferente s-au inregistrat intre subgrupul PE si subgrupurile NORM si WCH (p<0.001), inclusiv intre PE si HTG (p = 0.004). Andritoiu A, 2006
  • 96. TA diurna si TA nocturna in cele 4 subgrupuri TA diurn[ @ cele 4 subgrupuri n TA nocturn[ @ cele 4 subgrupuri n 140 140 120 120 100 100 mmHg mmHg 160 80 60 80 60 40 40 20 20 0 0 NORM WCH subgrup HTG PE TAS diurna TAD diurna Diferente statistice s-au remarcat intre subgrupul PE si NORM, WCH (p<0.001), inclusiv intre PE si HTG (p=0.01). NORM WCH subgrup HTG PE TAS nocturna TAD nocturna Diferente statistice s-au remarcat intre subgrupurile PE si NORM si WCH (p<0.001) cit si intre PE si HTG (p =0.01). Andritoiu A, 2006
  • 97. WC-HT hipertensiunea de halat alb AU ACM A OFT WCH NORM WCH NORM WCH NORM IP 0.78 0.76 0.88 0.87 1.15 1.18 IR 0.55 0.53 0.58 0.57 0.67 0.66 S/D 2.3 2.2 2.2 2.2 2.8 2.7 Parametrii ABPM FC - 24 ore WCH vs NORM bpm 88 86 mmHg WCH vs NORM 180 160 140 120 100 80 60 40 20 0 TAS CAB 84 82 80 TAD CAB TAS 24 TAD 24 TAM 24 TAS TAD TAS H H H DIURN DIURN NOCT WCH 78 TAD NOCT NORM 76 WCH NORM Andritoiu A, 2006
  • 98. HTG hipertensiune gestationala AU ACM A OFT HTG NORM HTG NORM HTG NORM IP 1.11 0.76 0.94 0.87 1.02 1.18 IR 0.63 0.53 0.59 0.57 0.65 0.66 S/D 2.6 2.2 2.4 2.2 2.9 2.7 mmHg Parametrii ABPM HTG vs NORM FC - 24 ore HTG vs NORM bpm 100 90 80 70 60 50 40 30 20 10 0 180 160 140 120 100 80 60 40 20 0 TAS CAB TAD CAB TAS 24 TAD 24 TAM 24 TAS TAD TAS H H H DIURN DIURN NOCT HTG HTG TAD NOCT NORM NORM Andritoiu A, 2006
  • 99. PE - preeclampsie Distribuia valorilor TA @ subgrupul PE n AU ACM 180 A OFT 160 140 NORM PE NORM PE NORM mmHg 120 PE 100 80 60 IP 1.74 0.76 0.83 0.87 1.01 IR 0.75 0.53 0.58 0.67 0.61 0.66 S/D 3.75 2.2 2.2 2.2 2.5 40 1.18 2.7 20 0 1 NORM 4 5 6 7 8 9 TAS 24 H TAD 24 H Parametrii ABPM PE vs NORM mmHg HTG 3 nr. paciente FC - 24 ore PE vs NORM bpm 100 90 80 70 60 50 40 30 20 10 0 2 180 160 140 120 100 80 60 40 20 0 TAS CAB TAD CAB TAS 24 TAD 24 TAM 24 TAS TAD TAS H H H DIURN DIURN NOCT PE TAD NOCT NORM Andritoiu A, 2006
  • 101. NORM AU ACM A OFT REF NORM REF NORM REF NORM IP 0.78 0.76 0.94 0.87 1.24 1.18 IR 0.55 0.53 0.59 0.57 0.72 0.66 S/D 2.3 2.2 2.5 2.2 2.9 2.7 Parametrii presionali NORM vs REF FC - 24 ore 140 NORM vs REF 120 NORM REF 100 mmHg 95 85 bpm 75 80 60 65 40 55 20 45 0 TAS CAB 35 25 NORM TAD CAB TAS 24H TAD 24H TAM 24H TAS TAD DIURN DIURN TAS NOCT TAD NOCT TAM NOCT REF Andritoiu A, 2006
  • 102. Corelatiile stabilite intre parametrii determinati prin ABPM si PE in grupul cu risc crescut Parametru ABPM r= p< TAS-24 ore 0.68 0.001 TAD-24 ore 0.72 0.001 TAM -24 ore 0.71 0.001 TAS diurna 0.69 0.001 TAD diurna 0.72 0.001 TAS nocturna 0.63 0.001 TAD nocturna 0.70 0.001 FC-24 ore -0.24 NS Andritoiu A, 2006
  • 103. TAM-24 ore >100 mmHg Sb % 66.66 Sp % 89.28 VP(+) % 50 VP(-) % 94.33 AC % 86 RR 10 Andritoiu A, 2006
  • 104. PROFILUL CIRCADIAN AL HTA Sb% Sp% 55.55 96.42 VP(+) % 71.42 VP(-) % AC % RR 93.1 90.77 10.44 Corelatia dintre profilul non-dipper si rata aparitiei PE r = 0.71; p<0.001 Andritoiu A, 2006
  • 105. Scorul de risc preeclamptic Variabila Punctaj Clinic Cel puin un factor derisc (diabet, primiparitate, varsta =>35 ani, antec. PE sau fat mort) 1 p. TAD cabinet =>100 mmHg 1p Doppler IR-a uterina >0.6 1p. S/D a. uterina >2.4 1p. Notch grad 1, 2, 3, 1p, 2p, 3p. Notch bilateral x 2 p. Notch absent 0p. IR <0.5 aa. cerebrale materne 1 p. ABPM TAM-24 ore >100 mmHg 1 TAD nocturna > 75 mmHg 1 Profil non-dipper 1 Scor maxim de risc 14 Andritoiu A, 2006
  • 106. SCOR DE RISC PREECLAMPTIC puncte 11.55 12 10 8 4.87 6 4 1.61 1.17 NORM WCH 2 0 HTG PE Plot of Fitted Model PE = -0.0938699 + 0.0736661*SCOR 1 0.8 PE 0.6 0.4 0.2 0 0 3 6 9 12 15 SCOR Andritoiu A, 2006
  • 108. Ceasul biologic - master clock • Complex de gene • Arie speciala in cortex • Nc. suprachiasmatic • Locus ceruleus Rolul SN autonom - baroreflexe Melatonina-mesager endogen
  • 109. The cardiovascular system is highly organised in time Lemmer B. - Pharmacol Ther 2006 • • • • • TA FC RVP DC Hh vasoactivi CA, SRAA, Et-1, AMPc
  • 110. Definitii • Chronobiologia –stiinta preocupata de mecanismele biologice ale bolilor in relatie cu o structura temporala; • Chronoterapia (cronofarmacologia): disciplina ce studiaza efectul farmacologic al medicamentelor in relatie cu comportamnetul bolii pe o anume perioada de timp. • Cronofarmacokinetica • Cronofarmacodinamia
  • 111. Cronofarmacokinetica • Absorbtia • Distributia • Secretiile gastro-dd • Golirea gastrica • Metabolizarea • Eliminarea renala Cronofarmacodinamie • Efecte diferite pe intervalul 24 ore • Momentul administrarii poate modifica rap. doza/concentratie Cronotoxicitate
  • 113. Concepte Homeostazic • Mediul intern ramine constant Cum tratam ? Cronobiologic • Variatii (cicluri) circadiene Cand tratam ?
  • 114. Obiectivele cronoterapiei in HTA concentratii mai mari atunci cind este mai multa nevoie (e.x: perioada post-trezire) si mai mici cind nevoile sunt mai reduse (e.g., in intervalul de somn nocturn) • • • Normalizarea valorilor TA pe intreg intervalul circadian Reducerea riscului cardio-vascular Imbunatatirea/normalizarea profilului circadian al TA (dipper) Morning versus evening dosing of a once-daily agent !
  • 115. Studii Morning vs evening dosing ACE inhibitors • quinapril, enalapril, benazepril, perindopril BRA • valsartan Beta-blockers • Atenolol, propranolol MR Calcium channel blockers • nifedipine-GITS Depinde de formularea farmaceutica Instant vs ER • amlodipine • isradipine • nitrendipine • ditizem • verapamil COER
  • 116. The impact of dosing time on the response to antihypertensive therapy • circadian patterns were generally unchanged when comparing morning vs evening administration of a variety of antihypertensive agents • nocturnal medication dosing generally reduced asleep BP more than morning dosing Lemmer B. Blood Press Monit 1999;1:161-169.
  • 118. Control TA diurn vs. nocturn Prestance (5/5) Non-control
  • 120. Ce ne rezerva viitorul .... trialuri clinice comparative ptr. a evalua efectele antihipertensivelor homeostatice vs cronoterapeutice pe end-pointurile clinice ( imbunatatirea controlului TA, QOL, ischemiei miocardice si performantelor miocardice)
  • 121.
  • 123. ABPM ACCURACY (1381 readings) 17% 83% Andritoiu A , 2003
  • 124. Studii personale 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. Andritoiu A si colab. Monitorizarea automata pe 24 h a tensiunii arteriale. Studiu pe 20 pacienti tineri hipertensivi comparativ cu normalul. Al 37 Cong Nat Cardiol, 1998, Sinaia Andritoiu A si colab. Parametrii de presiune arteriala evaluati prin computerizare automata 24h la un grup de pacienti cu hipertensiune arteriala. Al 37-lea Cong Nat Cardiol 1998, Sinaia Andritoiu A si colab. Monitorizarea automata 24h a tensiunii arteriale (ABPM). A 3-a Conf Nat Semiol Med 1998, Craiova Andritoiu A. Semnificatia diagnostica si prognostica a monitorizarii ambulatorii a tensiunii arteriale. Infomedica 1999;8:2-9. Andritoiu A. Semnificatia parametrului BP load in evaluarea severitatii hipertensiunii. Al 38-lea Cong Nat Cardiol 1999, Sinaia Andritoiu A si colab. The significance of high blood pressure in cardiovascular pathology of young adults. The 4th Cong BMMC 1999, Bucuresti Andritoiu A. Monitorizarea ambulatorie a tensiunii arteriale-aplicabilitate diagnostica si prognostica. Rev Med Mil 1999;1107-126. Andritoiu A. Hipertensiunea de halat alb - intre normal si patologic. Infomedica 2001;10:12-16. Andritoiu A. Complianta terapeutica in managementul hipertensiunii arteriale. Rev Med Mil 2001;2:195-206. Andritoiu A. Parametrii monitorizarii tensionale la trezire si afectarea organelor tinta in HTA. Al 41-lea Cong Nat Cardiol 2002, Sinaia Andritoiu A. Monitorizarea ambulatorie a TA – relatia cu afectarea organelor tinta in HTA. Al 41-lea Cong Nat Cardiol 2002, Sinaia Raca N, Gheorman V, Andritoiu A. Parametrii ABPM in sarcina normala. Al 2-lea Cong Nat Obst-Ginecologie, 2002, Bucuresti
  • 125.
  • 126. 2004

Editor's Notes

  1. Forest plot shows the prevalence of white-coat hypertension. When studies were divided on the basis of the criteria used for diagnosis of white-coat hypertension, it was found that studies that used a more strict criterion (clinic systolic BP ≥130 mmHg, ambulatory BP &lt;130 mmHg) were more likely to find white-coat hypertension, compared with studies that used a more liberal criterion (clinic systolic BP ≥140 mmHg, home BP ≥130 to 135 mmHg).
  2. Forest plot shows the prevalence of masked hypertension among patients with normal BP in the clinic. When studies were divided on the basis of the criteria used for diagnosis of masked hypertension, it was found that studies that used a more strict criterion (clinic systolic BP &lt;130 mmHg, ambulatory BP ≥130 mmHg) were less likely to find masked hypertension, compared with studies that used a more liberal criterion (clinic systolic BP &lt;140 mmHg, home BP ≥130 to 135 mmHg).
  3. Figure 1. Frequency distribution of maximum BP load from normotensive pregnant women (top) and women with a final diagnosis of gestational hypertension or preeclampsia (bottom) sampled in different trimesters of pregnancy. The BP load was obtained for each BP profile as the percentage of all individual BP readings &gt;125/95/75 mm Hg during activity and 105/80/65 mm Hg during resting hours for SBP, MAP, DBP, respectively. Maximum load indicates the maximum of the values obtained for each of the 3 cardiovascular variables.