evaluation of pregnant patients with heart...
TRANSCRIPT
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EVALUATION OF PREGNANT PATIENTS WITH HEART DISEASE
Karen Stout, MDUniversity of Washington
Seattle Children’sSeattle, WA
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CASE PRESENTATION
24 year old woman with aortic regurgitation referred for evaluation prior to pregnancy
Lifelong murmur, short of breath after 3 flights of stairs
Exam notable for diastolic murmur and harsh systolic murmur radiating to carotids
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CASE PRESENTATIONModerate aortic
regurgitationNormal left ventricular
size and function
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CASE PRESENTATIONModerate aortic
regurgitationNormal left ventricular
size and functionSevere subaortic
obstruction
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CASE PRESENTATIONModerate aortic
regurgitationNormal left ventricular
size and functionSevere subaortic
obstruction
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QUESTIONS
WHAT ARE THE RELEVANT HEMODYNAMIC CHANGES OF PREGNANCY?
WHAT ADVERSE EVENTS ARE WE TRYING TO AVOID DURING PREGNANCY?
WHAT ARE RISK FACTORS AND HOW CAN WE ASSESS THEM?
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PREGNANCY HEMODYNAMICS
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CARDIOVASCULAR CHANGES OF NORMAL PREGNANCY
HEMODYNAMIC
CO ↑SV ↑HR ↑BP ↔SVR ↓PAP ↔
LVEDP ↔
ANATOMIC
Aortic root sl ↑
LVEDD sl ↑
LVESD sl ↓
LA ↑
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CARDIOVASCULAR CHANGES OF NORMAL PREGNANCY
HEMODYNAMIC
CO ↑SV ↑HR ↑BP ↔SVR ↓PAP ↔
LVEDP ↔
ANATOMIC
Aortic root sl ↑
LVEDD sl ↑
LVESD sl ↓
LA ↑
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CARDIOVASCULAR CHANGES OF NORMAL PREGNANCY
HEMODYNAMIC
CO ↑SV ↑HR ↑BP ↔SVR ↓PAP ↔
LVEDP ↔
ANATOMIC
Aortic root sl ↑
LVEDD sl ↑
LVESD sl ↓
LA ↑
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TIMECOURSE OF HEMODYNAMIC CHANGES IN NORMAL PREGNANCY
4 8 12 16 20 24 28 32 36
CARDIAC OUTPUTHEART RATEPLASMA VOLUME
WEEKS GESTATION
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HEMODYNAMICS DURING DELIVERY
Acute redistribution of ~500 cc to maternal circulation at delivery
III LABOR AND DELIVERY PUERPUERIUM
VASCULAR RESISTANCE
CARDIAC OUTPUT
HEART RATE
RELA
TIVE
CHA
NG
E
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GLOBAL RISK ASSESSMENTADVERSE EVENTS DURING PREGNANCY
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CARDIAC EVENTS IN PREGNANCY
MATERNAL
ARRHYTHMIAS
HEART FAILURE
DEATH
FETAL
SMALL FOR GESTATIONAL AGE
PREMATURITY
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PREDICTORS OF ADVERSE EVENTSIN PREGNANT WOMEN WITH HEART DISEASE
Cardiac event before pregnancyCHF, ARRHYTHMIA
Functional statusNYHA Class > 2Cyanosis
Left heart obstructionMVA < 2.0 cm2AVA < 1.5 cm2HCM with LVOT ∆P > 30 mm Hg
Systemic ventricular dysfunction EF < 40%
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FREQUENCY OF ADVERSE EVENTS BASED ON RISK SCORE
Siu et al, Circulation 2001
5%27%
75%
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FREQUENCY OF ADVERSE EVENTS BASED ON RISK SCORE
Siu et al, Circulation 2001
5%27%
75%ArrhythmiaHeart failureDeath
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TYPES OF HEART DISEASE
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TYPES OF HEART DISEASE ENCOUNTERED DURING PREGNANCY
ACQUIREDRheumaticCardiomyopathy
DilatedPeripartum
Coronary diseaseKawasakiAtherosclerosisDissection
CONGENITALValvularComplex structuralCardiomyopathy
HypertrophicFamilial
Connective tissue disorderMarfanLoeys-Dietz
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INCIDENCE OF CONGENITAL HEART DISEASE IN CHILDHOOD AND PREGNANCY
Childhood PregnancyVentricular septal defect 35% 13%
Atrial septal defect 9% 9%Patent ductus arteriosis 8% 2.7%Pulmonic stenosis 8% 8%Aortic stenosis 6% 20%Coarctation of the aorta 6% 8%Tetralogy of Fallot 5% 12%Transposition of the great vessels 4% 5.4%
Compiled by Easterling in Gabbe, Obstetrics, 2002 with data from Shime Am J Obstet Gynecol 1987 and Findlow Br J Anaesth 1997
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INCIDENCE OF CONGENITAL HEART DISEASE IN CHILDHOOD AND PREGNANCY
Childhood PregnancyVentricular septal defect 35% 13%
Atrial septal defect 9% 9%Patent ductus arteriosis 8% 2.7%Pulmonic stenosis 8% 8%Aortic stenosis 6% 20%Coarctation of the aorta 6% 8%Tetralogy of Fallot 5% 12%Transposition of the great vessels 4% 5.4%
Compiled by Easterling in Gabbe, Obstetrics, 2002 with data from Shime Am J Obstet Gynecol 1987 and Findlow Br J Anaesth 1997
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INCIDENCE OF CONGENITAL HEART DISEASE IN CHILDHOOD AND PREGNANCY
Childhood PregnancyVentricular septal defect 35% 13%
Atrial septal defect 9% 9%Patent ductus arteriosis 8% 2.7%Pulmonic stenosis 8% 8%Aortic stenosis 6% 20%Coarctation of the aorta 6% 8%Tetralogy of Fallot 5% 12%Transposition of the great vessels 4% 5.4%
Compiled by Easterling in Gabbe, Obstetrics, 2002 with data from Shime Am J Obstet Gynecol 1987 and Findlow Br J Anaesth 1997
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SPECIFIC LESIONS
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CONGENITAL AORTIC STENOSIS
0%
10%
20%
30%
40%
50%
Cardiac complications duringpregnancy
Cardiac surgery during follow-up
Mild or moderate AS Severe AS
49 pregnancies, 39 women, mean follow-up 3.7 years
Silversides Am J Cardiol 2003
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MITRAL STENOSIS74 women, 80 pregnancies
89% NYHA 1 11% NYHA 2
Silversides et al Am J Cardiol 2003
40%
78%
26%
67%
21%
44%
MATERNAL EVENTSPULMONARY EDEMAARRHYTHMIA
FETAL EVENTSPREMATURE SMALL FOR GESTATIONAL AGE
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MARFAN SYNDROMEWomen 84Pregnancies 241Live births 181 (75%)Miscarriages 38 (16%)Terminations 17 (7%)Fetal deaths 2 (0.8%)
Aortic events 8 (4.3%)Dissection 6 (3.3%)Rapid dilation 2 (1.1%)
Death 2 (1.1%)
All aortic events and deaths occurred with aortic roots >4 cm
Compiled by Easterling and Stout in Gabbe, Obstetrics, 2007 with data from Lipscomb, Br J Obstet Gynecol 1997 , Pyeritz Am J Med 1981, Rossiter Am J Obstet Gynecol 1995
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PERIPARTUM CARDIOMYOPATHY44 women, 35 completed pregnancies
Elkayam et al NEJM 2001
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ECHOCARDIOGRAPHIC EVALUATION
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KEY CONCERNS
LESION IMPACT&
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KEY CONCERNS
LESION IMPACT&
OTHER COEXISTANT
LESIONS
“PRIMARY’ABNORMALITY
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KEY CONCERNS
LESION IMPACT&
ECHOCARDIOGRAPHIC FINDINGS
SYMPTOMS EXERCISE CAPACITY
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CONCLUSIONS
HEMODYNAMIC CHANGES WITH PREGNANCY ARE PROGRESSIVE AND MAY CAUSE CARDIAC DECOMPENSATION
ECHOCARDIOGRAPHY IS AN IMPORTANT EVALUATION TOOL BEFORE, DURING AND AFTER PREGNANCY
ECHOCARDIOGRAPHY IS ONLY ONE PART OF OVERALL RISK ASSESSMENT
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