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ISSN: 2320-5407 Int. J. Adv. Res. 11(05), 581-590
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Journal Homepage: - www.journalijar.com
Article DOI: 10.21474/IJAR01/16911
DOI URL: http://dx.doi.org/10.21474/IJAR01/16911
RESEARCH ARTICLE
STUDY OF LIPID PROFILE IN HYPERTENSIVE DISORDERS OF PREGNANCY
Dhaval Kantibhai Patel and Yamini Dilipbhai Patel
Department of Obstetrics & Gynaecology, GMERS Medical College & Hospital, Himmatnagar, Sabarkantha,
Gujarat, India.
……………………………………………………………………………………………………....
Manuscript Info Abstract
……………………. ………………………………………………………………
Manuscript History
Received: 20 March 2023
Final Accepted: 22 April 2023
Published: May 2023
Key words:-
Hypertension, Serum Lipid Level, Mode
of Delivery, Perinatal Outcome
Introduction : Hypertensive disorders complicate 5-10% of all
pregnancies. endothelial cell injury are important in the pathogenesis of
preeclampsia. Serum lipids have a direct effect on endothelial function.
Abnormal lipid metabolism has a basic role in the pathogenesis of the
disease. So study of lipid profile may be of good predictive value in
hypertensive disorders of pregnancy.
Method: This was a longitudinal study, done in the dept of OBGY,
GMERS Medical College, sola, Ahmedabad, from August 2020 to July
2022. 93 women in each group were studied. Outcome was measured
by serum lipid level, severity of hypertension, mode of delivery, need
for neonatal resuscitation, NICU admission.
Result: Serum Total cholesterol ≥240 mg/dl was observed to be
38.7% in group A and 14 % in group B. In group A with normal
lipid profile 97.5% had mild hypertension, 2.5% had severe
hypertension while in hypertensive with abnormal lipid profile group
53.8% had mild hypertension and 46.2% had severe hypertension.
Normal vaginal delivery observed 64.52% in group A and 79.57% in
group B. In group A, 35.48% babies and in group B ,5.37% babies
required resuscitative measures. NICU admission was needed by 27.95
% in group A and 5.37% in group B.
Conclusion: Serum lipid levels in hypertensive disorders of pregnancy
is an important parameter for prediction of adverse perinatal outcome.
Hypertensive disorders of pregnancy with dyslipidemia are associated
with adverse perinatal outcome as compare to hypertensive disorders of
pregnancy without dyslipidemia.
Copy Right, IJAR, 2023,. All rights reserved.
……………………………………………………………………………………………………....
Introduction:-
Hypertensive disorders complicate 5-10% of all pregnancies. The triad of hypertensive disorders, hemorrhage and
infection contribute greatly to the maternal morbidity and mortality1. In India the incidence of preeclampsia is
reported to be 8-10% of the pregnancies2. The incidence in primigravidae is about 10% and in multigravidae is about
5%.3 It causes IUGR leading to low birth weight. Low birth weight child is prone to suffer from diabetes,
hypertension, and coronary vascular disorders in their later life. 4
In a hypertensive disorders of pregnancy, there are many theories for pathogenesis, out of which endothelial cell
injury in which impaired endothelial function are important in the pathogenesis of preeclampsia. Serum lipids have a
Corresponding Author:- Dhaval Kantibhai Patel
Address:- Department of Obstetrics & Gynaecology, GMERS Medical College &
Hospital, Himmatnagar, Sabarkantha, Gujarat, India.
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direct effect on endothelial function. Abnormal lipid metabolism is responsible for the endothelial dysfunction In
toxemia of pregnancy, serum triglyceride concentration increases much more notably. In pregnancy, the increased
level of estrogen causes increased hepatic biosynthesis of endogenous triglycerides through VLDL.. This process is
modulated by hyperinsulinism that starts in pregnancy. All the above mentioned interactions along with increased
endothelial triglyceride accumulation may result in endothelial cell damage in pregnancy. In PIH, the triglycerides
are likely to be accumulated in vessels like uterine spiral arteries and contribute to endothelial damage by generating
small, dense LDL particles. Women with PIH are more likely to develop overweight, dyslipidemia , insulin
resistance and endothelial dysfunction, which are independent risk factors for cardiovascular disease. 5 The
association of alteration of serum lipid profile in essential hypertension is well documented. An abnormal lipid
profile is known to be strongly associated with atherosclerotic cardiovascular diseases and has a direct effect on
endothelial dysfunction.
Therefore, simple measurement of serum lipid parameters may be of good predictive value for hypertensive
disorders of pregnancy. So, I decided to take up the study to prove hypothesis: "Abnormal lipid levels during
pregnancy can be good predictor for hypertensive disorders of pregnancy".
Material & Methods:-
A Longitudinal study was conducted in the Dept. of OBGY, GMERS Medical College & Hospital, Sola,
Ahmedabad, Gujarat.
Total study population was 186 women. They were divided in two groups, 93 women in each group.
The study period is from August 2020 to July 2022.
Study population:
Outdoor and indoor pregnant women, who had following criteria:
(A) Selection criteria for pregnant women with hypertensive disorder:
Inclusion criteria:
All women of age between 18 years to 30 years in third trimester of pregnancy with hypertensive disorder, who had
taken antenatal visit at Sola civil hospital, Ahmedabad during this period were included. Maternal BMI was
calculated (weight/height2, kg/m2) using maternal weight and height value recorded in first trimester of pregnancy
from antenatal visit card.6
Exclusion criteria:
Pregnant women with chronic hypertension, collagen vascular disorder, smoking, alcoholism, multiple gestation,
familial hyperlipidemia, use of statins as antihyperlipidemic agents. Woman suffering from acute or chronic illness
during study or past history of diabetes mellitus, cardiac, hepatic, renal or thyroid dysfunction and if weight and
height values were recorded after first trimester of pregnancy were excluded.
(B) Selection criteria for normotensive pregnant women.
Inclusion criteria:
All women of age between 18 years to 30 years in third trimester of pregnancy with normal blood pressure, who had
taken antenatal visit at Sola civil hospital, Ahmedabad during this period were included. Maternal BMI was
calculated (weight/height2, kg/m2) using maternal weight and height value recorded in first trimester of pregnancy
from antenatal visit card.6
Exclusion criteria:
Pregnant women with collagen vascular disorder, smoking, alcoholism, multiple gestation, familial hyperlipidemia,
use of statins as anti hyperlipidemic agents. Woman suffering from acute or chronic illness during study or past
history of diabetes mellitus, cardiac, hepatic, renal or thyroid dysfunction and if weight and height values were
recorded after first trimester of pregnancy were excluded.
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Sample size:
Based on below sampling technique, the sample size was calculated to be 186 cases.
The case were divided into the following two groups:
Group A - Hypertensive pregnant women - 93 cases
Group B - Normotensive pregnant women – 93 controls
Sampling technique:
Comparison of two means
(Sample size of each group)
U = power of the study
e.g. If power is 90%, u = 1.28
V = confidence level
e.g if it is 99% , v = 2.58
Comparison of LDL cholesterol on normal and hypertensive pregnant women based on the study conducted by
Evruke C et al7
Normal = 115.4 ± 33.5 mg/dl
Hypertensive = 137.1 ± 42.0 mg/dl
P value = 0.0001*(p<0.005 means statistically significant)
(1.28 + 2.58)2 X {33.52+ 422}
115.4 137.12
= 93 (sample size of each group) case and control.
Methodology:-
The approval to carry out the study was obtained from institutional ethics committee.
Method of measurement of outcome of interest:
Serum lipid level, severity of hypertension, mode of delivery, need for neonatal resuscitation, NICU admission.
Data collection forms:
All patients participating in study was given patient information sheet. Written consent of participation was taken.
All collected data entered on to the data collection form.
Data collection methods:
In it two groups: Group A - Hypertensive pregnant women - 93 cases
Group B - Normotensive pregnant women – 93 controls
The cases and controls matched according to maternal age, gestational age, first trimester body mass index (BMI), in
accordance with the selection criteria previously established.
All the women with singleton pregnancies attending antenatal clinics at Sola civil were considered eligible who
follow selection criteria for inclusion in the study. Gestational age based on menstrual date, was confirmed through
ultrasound. Women with diabetes, chronic hypertension, autoimmune diseases or renal diseases and if weight and
height values were recorded after first trimester of pregnancy were excluded. Blood samples were collected from all
participants after a 12-hour fast using 5 ml tubes. The blood was sent to central laboratory of GMERS medical
college for analysis. The samples were immediately centrifuged and processed using a lab test diagnostic kit. Serum
triglycerides (TG), total cholesterol (TC) were analyzed by enzymatic methods using diasys kits on ERBA chem. - 7
semi auto analyzer.
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The values of lipid profile, we take as normal lipid profile and abnormal lipid profile - According to ATP III(Adult
treatment plan III) - National Cholesterol Education Program Guidelines are taken as follows.8
Normal lipid profile:
Total Cholesterol: < 240 mg/dl,
S. Triglyceride: <200mg/dl,
Abnormal lipid profile:
Total Cholesterol : ≥ 240 mg/dl,
S. Triglyceride: ≥ 200mg/dl,
Statistical methods:
Chi square test was used for statistical analysis.
P < 0.05 is considered statistically significant.
Statistical analysis was performed using SPSS software version 20.
Results:-
Table 1:- Comparison Of Serum Total Cholesterol In Both Group :
Serum Total Cholesterol
(mg/dl)8*
Group-A
Group-B
p value
No
%
No
%
<0.01
≥240
36
38.7
13
14
<240
57
61.3
80
86
Total
93
100
93
100
*Lipid values are according to ATP III (Adult treatment plan iii) guidelines8
0
10
20
30
40
50
60
70
80
90
≥240
<240
Number Of patients
Leval of Serum Total Cholesterol (mg/dl)
Patient with Hypertension(93)
Patient without Hypertension(93)
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Above table shows comparison of serum total cholesterol among group A and group B. Serum Total cholesterol
≥240 mg/dl was observed to be 38.7% in group A and 14 % in group B which is statistically significant. (P
value <0.01).
Table 2:- Comparison Of Serum Triglyceride In Both Group :
Serum Triglyceride
(mg/dl)8*
Group-A
Group-B
p value
No
%
No
%
<0.001
≥200
46
49.5
12
13
<200
47
50.5
81
87
Total
93
100
93
100
*Lipid values are according to ATP III (Adult treatment plan iii) guidelines8
Above table shows comparison of serum total triglyceride among group A and group B. Total serum triglyceride
≥200 mg/dl was observed to be 49.5% in group A and 13% in group B which is statistically significant ( p value
is <0.001).
Table 3:- Comparison Of Severity Of Hypertension With Lipid Profile In Group A:
46
12
81
0
10
20
30
40
50
60
70
80
90
≥200
<200
Number of patients
Leval of serum Triglyceride (mg/dl)
Patient with Hypertension(93)
Patient without Hypertension(93)
Severity of
hypertension
With normal lipid profile (39)
With abnormal lipid profile(54)
P Value
No.
%
No
%
<0.01
Mild
38
97.5
29
53.8
Severe
1
2.5
25
46.2
Total
39
100
54
100
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Above table shows comparison of severity of hypertension with lipid profile in group A. In group A with normal
lipid profile 97.5% had mild hypertension, only 2.5% had severe hypertension while in hypertensive with abnormal
lipid profile group 53.8% had mild hypertension and 46.2% had severe hypertension which is statistically
significant. (p value - <0.01)
Table 4:- Comparison Of Mode Of Delivery:
Mode of delivery
Group-A
Group-B
P value
No
%
No
%
Vaginal delivery
60
64.52
74
79.57
0.0337
LSCS
33
35.48
19
20.43
Total
93
100
93
100
0
5
10
15
20
25
30
35
40
MILD
SEVERE
Number of patients
Severity of Hypertension
With normal lipid profile (39)
With abnormal lipid profile(54)
0
10
20
30
40
50
60
70
80
Vaginal
delivery
LSCS
Number Of Patients
Patient with Hypertension(93)
Patient without Hypertension(93)
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Above table shows mode of delivery in group A- Patient with Hypertension and group B- Patient without
Hypertension. In the present study, normal vaginal delivery observed 64.52% in group A and 79.57% in group B.
LSCS were observed 35.48% in group A and 20.43% in group B. The rate of LSCS is higher in hypertensive group
in comparison with normal delivery which is statistically significant. (P value of 0.03 ).
Table 5:- Comparison Of Need For Neonatal Resuscitation In Both Group:
Above table shows comparison of need for neonatal resuscitation in between group A and group B. In group A-
35.48% babies and in group B -5.37% babies required resuscitative measures more than routine care. The difference
was statistically significant (P = <0.001 ).
Table 6:- Comparison Of Need For Nicu Admission In Both Group :
NICU admission
Group-A
Group-B
P Value
No.
%
No.
%
<0.001
Yes
26
27.95
5
5.37
No
67
72.04
88
94.63
0
10
20
30
40
50
60
70
80
90
100
Present
Absent
Patient with Hypertensio(93)
Patient without Hypertension(93)
Need for neonatal
resuscitation
Group-A
Group-B
P Value
No.
%
No.
%
<0.001
Present
33
35.48
5
5.37
Absent
60
64.52
88
94.63
Total
93
100
93
100
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Above table shows comparison of need for NICU admission in between group A and group B. Neonatal Intensive
care unit admission was needed by 27.95 % newborns in group A and 5.37% in group B which is statistically
significant. ( p value of <0.001)
Discussion:-
Table 1:- Comparison Of Serum Total Cholesterol Among Both Group In Various Studies:
Author
Year of study
TC(mg/dl) in HDP
TC (mg/dl) in
control
P value
Josephine LP et al9
2012
209.54 ± 32.46
175.16 ± 30.16
<0.0001
Sharami SH et al10
2012
238.31 (49.65)
214.32 (42.12)
0.02
Garabet SB et al11
2013
243.9(18.2)*
212.9 (20.3)
<0.05
Nazli R et al12
2013
216.63+5.17
202.23+4.6
Not significant
Present study
2022
232 ± 52.1
198.3 ± 42.5
<0.01
In the Present series found that mean serum TC(mg/dl) in HDP group was 232 ± 52.1 mg/dl where as it was
198.3 ± 42.5 mg/dl in the control group, which is statistically significant. Thus, it is seen that the level of serum
TC are elevated in hypertensive disorders of pregnancy.
Josephine LP et al9 investigated that mean serum TC(mg/dl) in HDP group was 209.54 ± 32.46 where as it was
175.16 ± 30.16 in the control group, which is statistically significant.
Sharami SH et al10 investigated that mean serum TC(mg/dl) in HDP group was 238.31 (49.65) where as it was
214.32 (42.12) in the control group, which is statistically significant.
Garabet SB et al11 investigated that mean serum TC(mg/dl) in HDP group was 243.9(18.2) where as it was 212.9
(20.3) in the control group, which is statistically significant.
Nazli R et al12 investigated that mean serum TC(mg/dl) in HDP group was 216.63+5.17 where as it was 202.23+4.6
in the control group, which is statistically not significant.
Table 2:- Comparison Of Serum Total Triglyceride Among Both Group In Various Studies:
Author
Year of study
TG (mg/dl) in HDP
TG (mg/dl) in
control
P value
Josephine LP et al 9
2012
337.24 ± 77.29
197.48 ± 37.95
<0.0001
0
10
20
30
40
50
60
70
80
90
100
Yes
No
Number of patients
NICU Admission
Patient with Hypertension
Patient without Hypertension
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Nazli R et al10
2013
337.71 ±14..34
212.30 ±7.28
0.001
Sharami SH et al11
2012
340.29 ± 106.45
202.85 ± 63.27
0.001
Garabet SB et al12
2013
281.7 ± 21.3
207.5 ± 21.6
<0.05
Present study
2022
210 ± 69
161 ± 38
<0.01
In present series analyzed that mean serum TG(mg/dl) in HDP group was 210 ± 69 where as it was 161 ± 38 in the
control group, which is statistically significant. Hence level of serum TG are elevated in hypertensive disorders
of pregnancy.
Josephine LP et al9 investigated that mean serum TG(mg/dl) in HDP group was 337.24 ± 77.29 where as it was
197.48 ± 37.95 in the control group, which is statistically significant.
Nazli R et al10 investigated that mean serum TG(mg/dl) in HDP group was 337.71 ±14..34 where as it was
212.30 ±7.28 in the control group, which is statistically significant.
Sharami SH et al11 investigated that mean serum TG(mg/dl) in HDP group was 340.29 ± 106.45 where as it was
202.85 ± 63.27 in the control group, which is statistically significant.
Garabet SB et al12 investigated that mean serum TG(mg/dl) in HDP group was 281.7 ± 21.3 where as it was 207.5
± 21.6 in the control group, which is statistically significant.
Table 3:- Comparison Of Lscs Rate Among Both Group In Various Studies:
Author
Year
LSCS rate in
hypertensive
group(%)
LSCS rate in
normotensive
group(%)
P value
Shivanagappa M et al13
2015
71.1
34.4
0.001
Significant
Bramham K et al14
2011
75%
55%
0.001
Significant
Beltagy N et al15
2011
65%
30%
0.02
Significant
Present study
2022
35.4%
20.4%
0.03
Significant
In the present series LSCS rate was observed 35.4% in hypertensive group and 20.4% in normotensive group,
which is statistically significant (P value of <0.001). Shivanagappa M et al13, Bramham k et al14 and Beltagy N et
al15 found that LSCS rate significantly higher in hypertensive group as compared to normotensive group.
Table 4:- Comparison Of Nicu Admission In Hypertensive Disorder Of Pregnancy in Various Studies:
Author
Year of study
NICU Admission
P Value
Patient with hypertensive disorder of
pregnancy(%)
Wolde Z et al16
2011
22.52%
Significant
Laura A et al17
2014
8%
Significant
Lalthantluanga C et al18
2015
57%
Significant
Present study
2022
27.95
Significant
In the present series, intensive care unit admission was needed for 27.95 % of newborns in Patient with in
hypertensive group and 5.37% in newborns in Patient with normotensive group, which is statistically significant.
Wolde Z et al16 found that NICU admission in hypertensive group to be 22.52%, which is statistically significant.
Laura A et al17 found that NICU admission in hypertensive group 8%, which is statistically significant.
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Lalthantluanga C et al18 found that NICU admission in hypertensive group 7%, which is statistically significant.
Conclusion:-
Measurement of lipid levels during hypertensive disorders pregnancy is an important parameter for prediction of
adverse perinatal outcome. Abnormal lipid levels in hypertensive disorders of pregnancy are
associated with severe hypertension during pregnancy.
Abnormal lipid levels in hypertensive disorders of pregnancy are associated with Low birth weight, Increased
incidence of fetal distress, Increased requirement of neonatal resuscitation, Increased NICU admission.
Hypertensive disorders of pregnancy with dyslipidemia are associated with adverse perinatal outcome as compare
to hypertensive disorders of pregnancy without dyslipidemia. Dyslipidemia with hypertensive disorders of
pregnancy are associated with increased rate of LSCS.
Acknowledgements:-
The authors would like to thanks to the department of OBGY, GMERS Medical College & Hospital, Sola,
Ahmedabad, Gujarat, for all the kind support and thanks to all the participants for their cooperation.
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