International Journal of Reproduction, Contraception, Obstetrics and Gynecology

Rangaswamy M et al. Int J Reprod Contracept Obstet Gynecol. 2016 Sept;5(9):3081-3084

www.ijrcog.org pISSN 2320-1770 | eISSN 2320-1789

DOI: http://dx.doi.org/10.18203/2320-1770.ijrcog20162989
Research Article

Fetomaternal outcome in placenta previa - a retrospective study in

teaching hospital
Manohar Rangaswamy*, Kayvashree Govindaraju

Department of Obstetrics and Gynaecology, Mandya institute of medical sciences, Mandya-571401, Karnataka, India

Received: 12 July 2016

Accepted: 05 August 2016

*Correspondence:
Dr. Manohar Rangaswamy,
E-mail: drmanoharrangaswamy@gmail.com

Copyright: © the author(s), publisher and licensee Medip Academy. This is an open-access article distributed under
the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial
use, distribution, and reproduction in any medium, provided the original work is properly cited.

ABSTRACT

Background: Prevalence of Placenta previa is found to vary between 0.5% of all pregnancies. Placenta previa is one
of the major causes of antepartum hemorrhage and is also important cause of maternal and perinatal morbidity and
mortality in India.
Methods: This is a retrospective study conducted in department of OBG, Mandya Institute of Medical Science,
Mandya for a period of five years from January 2011 to December 2015. All cases of placenta previa during
pregnancy admitted during this period were included in the study. All case records were obtained from medical record
section and carefully analyzed to find out the incidence, various types of placenta previa, its clinical presentation and
its outcome in relation to mode of delivery, birth weight, and maternal, maternal and perinatal morbidity.
Results: The prevalence of placenta previa was 0.2% and was more commonly present among multiparous women
(75.8%). Most common type was type 1 placenta previa in 23 (37.2%) cases followed by type 2 in19 cases (30.6%).
13 cases (20.9%) were of complete placenta previa which was similar to study conducted by Vaishali et al. Out of 62
cases, 10 (16.1%) had atonic PPH and 2 cases underwent peripartum hysterectomy. All cases of perinatal mortality
were between 28 to 30 weeks weighing between 1-1.2 kg associated with complete placenta previa in 3 cases and type
3 (incomplete) in 2 cases. There was no maternal mortality in this study.
Conclusions: Managing a case of placenta previa during pregnancy poses a great challenge to every obstetrician in
present day obstetrics due its increased risk of maternal and perinatal complications.

Keywords: Placenta previa, Low lying, Bleeding per vagina, Antepartum hemorrhage

INTRODUCTION Risk factors are old age, multiparity, previous caesarean

delivery, abortion, smoking, cocaine, and male fetus.3 In
Placenta previa is defined as situation of the placenta previa patients, postpartum haemorrhage is substantial,
partially or wholly in the lower uterine segment of the which increases maternal complications. Risk factors for
uterus. The prevalence of placenta previa has been massive haemorrhage and transfusion are old age,
recently estimated to be approximately 0.5% of all abortion, previous caesarean section, uterine myoma,
pregnancies, and this increase correlates to the elevated increased BMI, increased neonatal weight, and complete
caesarean section rate.1 Placenta previa is a major cause previa.4
of maternal morbidity and mortality because of the
associated massive antepartum and intra-partum Placenta previa is also associated with abnormal
hemorrhage.2 placentation and preterm delivery. History and number of
previous caesarean delivery is important to have placenta

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previa and abnormal placentation in subsequent Table 2: Incidence of placenta previa with respect to
pregnancies.5 gravida.

Need for the study Gravida No. of cases (62)

Primi 15
Placenta previa is one of the major causes for maternal Gravida 2 21
and perinatal mortality accounting for 35% cases of Gravida 3 17
antepartum haemorrhage. This study is conducted to Gravida 4 5
know the various clinical presentations and feto-maternal Gravida 5 4
outcome in cases of placenta previa in a teaching
hospital.
Table 3: Incidence of placenta previa with respect to
parity.
METHODS
Parity Total cases (47)
This is a retrospective study conducted in the department Para 1 34
of OBG, Mandya Institute of Medical Sciences, Mandya
Para 2 10
for a period of five years from January 2011 to December
Para 3 3
2015. All cases of placenta previa diagnosed by clinical
or ultrasonography were included in the study. All case
records were obtained from medical record section, Out of 36 cases (72.3%) were of parity 1, followed by
MIMS, Mandya and were carefully analyzed to find out para 2 in 10 cases (21.2%).
the prevalence, risk factors attributing to etiology of
placenta previa, various clinical presentation, and type of Table 4: Incidence in relation to type of placenta
placenta previa, intra-operative findings, management, previa.
perinatal and maternal outcome.
Type of placenta previa No. of cases (62)
Inclusion criteria Type1 (low lying) 23
Type 2 (marginal) 19
 All cases of placenta previa diagnosed by clinical Type 3 (incomplete) 7
and ultrasonography admitted during the study Type 4 (complete) 13
period.
 Gestational age >28 weeks Low lying placenta was the most common type of
placenta previa in 23 (37.2%) cases, followed by type 2
Exclusion criteria in 19 (30.6%). Central placenta previa was found in 13
(20.9%) cases and type 3 in 7 (11.2%) cases.
 Gestational age <28 weeks
 Other causes of antepartum hemorrhage. Table 5: Incidence of various types of presentation in
placenta previa.
RESULTS
Type of presentation No. of cases (62)
Table 1: Incidence of placenta previa according to Cephalic 37
maternal age. Breech 15
Transverse lie 6
Age No. Of cases (62) Oblique or unstable lie 4
< 20 years 2
20-25 years 37 Most common presentation was cephalic accounting for
26-30 years 20 37 cases (59.6%), followed by 15 (24.1%) cases and 6
>30 years 3 (9.6%) cases of transverse lie, 4 cases of unstable lie.

In our study 37 cases (59.6%) were found in the age Table 6: Incidence of placenta previa with respect to
group of 20-25 years and 32.2% (20 cases) were found in period of gestation.
the age group of 26 -30 years.
Period of gestation in weeks No. of cases (62)
In our study placenta previa was found in 21 cases 28-34 19
(33.8%) in gravid 2, followed by gravid 3 in 17 cases 34-37 10
(27.4%) and primigravida in about 15 cases (24.1%). 38-42 33

Out of 62 cases, 33 (53.2%) cases were present between

38-42 weeks of gestation, 19 (30.6%) cases were between

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 Rangaswamy M et al. Int J Reprod Contracept Obstet Gynecol. 2016 Sept;5(9):3081-3084

28-34 weeks followed by 10 (16.1%) cases between 34 to All cases of placenta previa received blood transfusion
37 weeks. and 8 (12.9%) cases received more than 4 units of blood
followed by 6 (9.6%) cases requiring 3 units.
Two cases of type 1 placenta previa (low lying) of 30 and
32 weeks were delivered by PTVD and one case of type 2 Out of 62 cases 35 were male babies and 27 female
anterior with IUD (intra uterine death) was delivered by babies.
vaginal route. 95.1% of cases were delivered by LSCS
and majority by emergency LSCS as they presented with DISCUSSION
bleeding per vagina in 50 (84.7%) cases and 9 (15.4%)
cases were done by elective LSCS. The present study was undertaken to evaluate the various
types of placenta previa and its clinical presentation and
Table 7: Relationship of mode of delivery in placenta feto-maternal outcome admitted during January 2011 to
previa. December 2015.

Mode of delivery No of cases - 62 The prevalence of placenta previa was 62 cases among
PTVD 03 31,160 deliveries accounting for 0.2% which was similar
LSCS 59 to study by Kollmann M et al (0.15%).6

Table 8: Incidence of birth weight in placenta previa. 59 cases were present before 30yrs which is similar to
study by Kaur B (77%).7
Birth weight No of cases (62)
<2 kg 17 Placenta previa was more commonly present among
2-2.5 kg 15 multiparous women (75.8%) which is similar to study
2.6-3 kg 16 conducted by faiz.3
>3 kg 14
Most common type was type 1 placenta previa in 23
(37.2%) cases followed by type 2 in 19 cases (30.6%).13
Out of 62 cases, 32 (51.6%) cases were of birth weight
cases (20.9%) were of complete placenta previa which
<2.5 kg and 30 (48.3%) cases >2.5 kg.
was similar to study conducted by Vaishali et al (22.7%).8
Table 9: Relationship of maternal complication
33 cases (53.2%) were of term gestation and 29 cases
among placenta previa.
(46.8%) presented by preterm gestation.
Atonic PPH 10
3 cases (4.8%) were delivered by vaginal route and 59
Hysterectomy 2
cases (95.2%) were delivered by LSCS.
Hemorrhagic shock 4
30(48.3%) babies delivered were more than 2.5 kg and 32
Out of 62 cases 10 (16.1%) cases had Atonic PPH, 4 (51.8%) babies were less than 2.5 kg.
(6.4%) cases were minor degree PPH and 6 (9.6%) cases
were of major degree of PPH, of which 4 cases went for Out of 62 cases 10 (16.1%) had atonic PPH which is
haemorrhagic shock. Of these 4 cases, 2 cases were similar to study by Bhatt AD (15%).9
controlled by medical and surgical (bilateral uterine
ligation) and 2 case landed up in hysterectomy due to
19 cases were admitted to NICU due to preterm
Intractable PPH. deliveries and there were 5 perinatal mortality. All cases
of perinatal mortality were between 28 to 30 weeks
Table 10: Number of blood transfusions in cases of weighing between 1-1.2 kg associated with type 4
placenta previa. placenta previa in 3 cases and type 3 placenta previa in 2
cases. This correlates with the study conducted by Jain
1 unit 29
S.10
2 units 19
3 units 6 There was no maternal mortality during the study period.
4 units and more 8 However 2 patients with central placenta previa had
intractable atonic PPH not controlled by medical and
Table 11: Distribution of sex among babies delivered. conservative surgeries requiring peripartum
hysterectomy.
Sex of baby No. of cases
Male 35 CONCLUSION
Female 27
Managing a case of placenta previa during pregnancy
poses a great challenge to every obstetrician in present

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 Rangaswamy M et al. Int J Reprod Contracept Obstet Gynecol. 2016 Sept;5(9):3081-3084

day obstetrics due its increased risk of maternal and 4. Jang DG, We JS, Shin JU, Choi YJ, Ko HS.
perinatal complication. Thus good antenatal care Maternal outcomes according to placental position in
including more frequent antenatal check-ups, correction placental previa. Int J med Sci. 2011;8(5):439-44.
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neonatal outcomes of placenta previa presenting as
Funding: No funding sources antepartum hemorrhage in tertiary care centre of
Conflict of interest: None declared north India. International Journal of Basic and
Ethical approval: The study was approved by the Applied Medical Sciences. 2015;5(3):58-61.
Institutional Ethics Committee 8. Shinde V, Rachkonda L. A study on maternal and
neonatal outcomes in placenta previa in a tertiary
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Cite this article as: Rangaswamy M, Govindaraju
K. Fetomaternal outcome in placenta previa - a
retrospective study in teaching hospital. Int J
Reprod Contracept Obstet Gynecol 2016;5:3081-4.

International Journal of Reproduction, Contraception, Obstetrics and Gynecology Volume 5 · Issue 9 Page 3084