A Study of the Changes of Cardiovascular Haemodynamics  at  Different  Gestational Periods of Normal Pregnany

M.H. Al-Shamma, Dr.Yesar; Of Physiology, Prof.; Ph.D,; MBChB,

	A Study of the Changes of Cardiovascular Haemodynamics at Different Gestational Periods of Normal Pregnany
KUFA MEDICAL JOURNAL
Article 1, Volume 12, Issue 1, 2009, Pages 125-134
Authors
Dr.Yesar M.H. Al-Shamma; Prof. of Physiology; ;
Abstract
This study is carried out on 102 normal healthy pregnant women,aged 20- 40 years in order to study the changes in haemodynamic variables and cardiac function during normal pregnancy and make comparison between changes in different gestational age, by using non invasive technique including : -Echocardiography for estimation of stroke volume [SV], cardiac output[CO] , left ventricular ejection fraction [EF] and left ventricular dimension including end –diastolic dimension [EDD] and end- systolic dimension[ESD].Mercury sphygmomanometer for measuring blood pressure. Those women are divided into three groups ; 1.The first group includes pregnant women at end of first trimester [at gestational age of 13 weeks]. 2.the second group includes pregnant women at end of second trimester[ at gestational age of 26 weeks].3.The third group includes pregnant women at end of third trimester[at gestational age of 39 weeks] .- In addition to non pregnant women as a control group.The results of this study indicates that there is significant increase in SV, CO , HR, EDD with the increase of gestational age of pregnancy and significant decrease in PVR with the increase of gestational age[PVR are calculated from the equation: PVR=MBP/CO]. While there are no significant differences in ESD ,EF, and MBP in all groups. Aim of the study :Cardiovascular hemodynamic changes that occur during different gestational age of normal pregnancy include: SV ,EDD, ESD, EF, HR .CO, MBP and PVR.

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