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ORIGINAL CONTRIBUTIONS
Year : 2006  |  Volume : 60  |  Issue : 6  |  Page : 233-240
 

The impact of primary postpartum hemorrhage in "Near-Miss" morbidity and mortality in a tertiary care hospital in North India


1 Manipal Medical College, Manipal, Karnataka, India
2 Department of Obstetrics and Gynaecology, Postgraduate Institute of Medical Education and Research, Sector-12, Chandigarh, India

Correspondence Address:
Rashmi Bagga
Department of Obstetrics and Gynaecology, Postgraduate Institute of Medical Education and Research, Sector 12, Chandigarh - 160 012
India
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DOI: 10.4103/0019-5359.25905

PMID: 16790949

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  Abstract 

AIM: To assess risk factors, mortality and "near-miss" morbidity in early PPH. SETTING AND DESIGN: Retrospective analysis of 178 women with early PPH (within 24 h of delivery) over 4 consecutive years in a tertiary care hospital in North India. MATERIALS AND METHODS: All case sheets of patients identified by labor record registers as having early PPH were reviewed by the same person to identify the actual impact of condition. The data was analyzed by chi-square analysis. RESULT: Early PPH (loss of blood that caused significant alteration in maternal condition or blood loss 500 in vaginal deliveries or >1000 cc in cesarean section) was recorded in 178; 90 delivered in hospital (Group-A) and 88 referred after delivery (Group-B) from various peripheral centers, i.e., maternity hospitals, nursing homes, district and community health centers. The maternal mortality ratio during this period was 1049/100,000 (139 deaths/13248 live births; direct maternal deaths = 94). Early PPH accounted for 11/94 direct maternal deaths (11.7%). Of these 11 deaths, 3 were in group A and 8 in group B. "Near-miss" morbidity was higher than mortality (Total 19/178; 5/90 in Group-A and 14/88 in Group-B). Delayed referral and lack of active 3rd stage management in Group-B were responsible for most of the adverse events. CONCLUSION: Both "near-miss" morbidity and mortality in early PPH reflect the level of obstetric care in the developing world. These need to be reduced by strengthening peripheral delivery facilities, active 3rd stage management and early referral.


Keywords: Maternal mortality; "near-miss" morbidity; primary postpartum hemorrhage.


How to cite this article:
Kaul V, Bagga R, Jain V, Gopalan S. The impact of primary postpartum hemorrhage in "Near-Miss" morbidity and mortality in a tertiary care hospital in North India. Indian J Med Sci 2006;60:233-40

How to cite this URL:
Kaul V, Bagga R, Jain V, Gopalan S. The impact of primary postpartum hemorrhage in "Near-Miss" morbidity and mortality in a tertiary care hospital in North India. Indian J Med Sci [serial online] 2006 [cited 2015 Mar 6];60:233-40. Available from: http://www.indianjmedsci.org/text.asp?2006/60/6/233/25905


Postpartum hemorrhage (PPH) has been a nightmare for obstetricians since centuries. Currently in developed countries, embolism is the leading cause of maternal mortality, following improvement in the prevention and the treatment of the three traditional horsemen (hemorrhage, infection and hypertension).[1] However, in developing countries, PPH continues to be a leading cause accounting for 25-43% of maternal deaths.[2],[3] An early observational study reported that blood loss more than 500 ml occurs in 40% women after vaginal delivery and more than 1000 ml in 30% women after an elective repeat cesarean section.[4] The WHO technical working group, 1990, defined PPH as bleeding in excess of 500 ml in the first 24 h after delivery.[5] PPH is a frequent complication of delivery and its incidence is commonly reported as 2-4% after vaginal delivery and 6% after cesarean section with uterine atony being the cause in about 50% cases.[6] Many studies have suggested this to be an underestimation of normal loss and some suggest cutoff for clinically significant PPH should now be revised to 1000 ml.[7] The aim of this study was to identify the causes for early PPH and to assess the extent of morbidity, especially the "near-miss" cases as well as mortality associated with it. "Near-miss" morbidity is considered to be an underestimated but more sensitive indicator of maternal health than mortality.


  Materials and methods Top


This study was carried out in the Postgraduate Institute of Medical Education and Research, Chandigarh, a tertiary care hospital in North India. A retrospective analysis of all women with early PPH (within the first 24 h of delivery) during a period of 4 consecutive years (2000 to 2003) was done by the same person. PPH in the institute was measured both objectively and subjectively, i.e., any amount of blood loss following birth that adversely affected the mother as well as loss > 500 ml in vaginal and > 1000 ml during cesarean section (estimated from the use of sponges and blood in suction by the attending staff). The criteria for diagnosis for the deliveries occurring outside the institute was not clear, but since they were referred with the diagnosis of PPH from outside and most were in a moribund state, no exact definition was sought from them. Such women were identified from the labor record registers and then all case sheets were reviewed and demographic variables of age, parity, period of gestation, mode of delivery were noted. The cause of PPH and medical or surgical interventions were analyzed. Morbidity assessment was done and "near-miss" morbidity was identified using the scoring system outlined by Geller et al .[8],[9] "Near-miss" morbidity is considered a sensitive indicator of assessment.[10]

In this system, five clinical factors - organ failure (³ 1 system), extended intubation (³ 12 h), ICU admission, surgical intervention and transfusion (³ 3 units) are - grouped into a scoring system. The total score is calculated as the weighted sum of the clinical factors present for each woman. This scoring system has a specificity of 93.9%. A total score was calculated as the weighted sum of clinical factors present for each woman, with a score of ³ 8 considered as "near-miss" morbidity. In our hospital, active management of 3rd stage in the form of intramuscular ergometrine at delivery of the anterior shoulder or 10-20 units oxytocin infusion in 500 ml normal saline and controlled cord traction is practiced routinely. A note was made of similar practices done outside.


  Results Top


During the study period, a total of 13,907 women delivered in our hospital. Of these, 90 had early PPH (incidence 0.6%). In addition, 88 women were referred from peripheral health centers with early PPH. Thus we had a total of 178 women with primary PPH for analysis. The median age was 23 years and the mean gestation at delivery was 37.3 weeks. Nearly half of the women (47.1%) were primiparous and pregnancy had been supervised in only about one-fourth (26.4%). The onset of labor was spontaneous in 50.6% and 65.7% delivered vaginally. For the purpose of analysis, we divided the women with PPH into two groups - Group A (women who delivered in this hospital, n=90) and Group B (women referred after having delivered elsewhere n=88).

[Table - 1] shows the labor characteristics and causes of PPH in the two groups. In our hospital, active management of 3rd stage is practiced routinely. However, routine active management of 3rd stage, though recommended by the WHO, was practiced in only 36.4% of the women in group B. This fact may be responsible for the finding that though uterine atony emerged as the leading cause of PPH in both groups, it was significantly higher (almost double) in those who delivered elsewhere and were referred to this hospital with PPH. The atonicity in group B was also contributed to by retained placental tissue and uterine inversion, thus highlighting the need for proper delivery techniques. Among deliveries in our hospital, 20% of cases of PPH were due to abruptio placentae or placenta accreta, causes that cannot be prevented. In majority of the women (87.9%), the excessive bleeding occurred within 6 h of delivery. However, majority (61.3%) of the women who delivered elsewhere reached our hospital after 6 h, thus losing precious time.

The frequency and severity of complications were more in group B. Amongst injuries, lower genital tract trauma was significantly more in hospital deliveries, but uterine rupture was more in the referred group (although not statistically significant).

[Table - 2] shows the overall morbidity and mortality data. There were a total of 11 deaths among 178 women with PPH (mortality rate 6.1%). During the study period, there were 14,244 total births and 13,248 live births at our hospital (Annual statistics, Department of Obstetrics and Gynaecology, Postgraduate Institute of Medical Education and Research, Chandigarh, India). The maternal mortality ratio during this period was 1049/100,000 (139 maternal deaths/13,248 live births). Of these, 94 were direct maternal deaths (67.6%). Early or primary PPH accounted for 11.7% of the direct deaths (11/94). Between the two groups, though there were more deaths among the women delivered elsewhere and referred with PPH, this difference did not achieve statistical significance. Thus, though the overall mortality was not significantly different, majority of the deaths in Group B were associated with multiple organ failure, which is an indirect indicator of delay in initiation of treatment.

An attempt to analyze "near-miss" morbidity (cases that could easily have progressed to mortality) was made in order to identify factors that can trigger events that may ultimately lead to maternal mortality. Nineteen women (10.7%) suffered "near-miss" morbidity. The causes for "near-miss" morbidity in women delivered in our hospital (Group A) were placenta accreta (3 cases), followed by uterine rupture and abruptio in 1 case each. Amongst the referred cases (Group B), placenta previa, uterine rupture, atony and placenta accreta accounted for 6, 4, 3 and 1 cases respectively. Amongst the 19 women, the major group comprised of referral patients. Delayed referral (transfer time > 6 h after delivery) was observed in Group B in 54/88 (61.3%) and all 14 women who had "near-miss" morbidity had reached our hospital > 6 h after delivery.

Although a score of ³ 8 was taken as cutoff for near-miss morbidity evaluation, yet as shown in [Table - 2], individual factors assessed were high and their impact on quality of life cannot be understated. Again, a comparison between the two groups revealed higher rate of complications in the referred group with organ failure sevenfold more, while ICU admission, extended intubations and ³ 3 units transfusion rate were threefold more and surgical intervention 1.2-fold higher than in those who delivered in our hospital.

In [Table - 3], the details of the morbidity in all cases reveal a significantly high morbidity in all these women and again a greater number amongst the outside deliveries, with the cardiac causes (hypotension) mainly contributing to the organ system failure. Major surgical interventions including hysterectomy, bilateral internal iliac ligation and embolization of uterine artery were required in more cases in Group B, signifying the severity of complications in this group.


  Discussion Top


Maternal mortality has been used traditionally as a measure of quality of health care. However, recently maternal morbidity, especially "near miss" morbidity, is being taken into account to assess the burden of disease. Apparently, two-thirds of obstetric morbidity is related to hemorrhage.[11] It has been estimated that PPH increases the risk of morbidity 50 times and has nearly 5 times higher morbidity than mortality.[12] This study attempts to analyze the data of women who had early PPH over a 4-year period - in order to identify the causes, mortality and "near-miss" morbidity associated with it as well as the risk factors that contribute to the adverse outcomes.

An assessment of the causes of early PPH revealed that the incidence of uterine atony, retained placenta and uterine inversion is significantly less among women delivered in our hospital as compared to women referred with PPH after having delivered elsewhere. The regular use of active management in the 3rd stage, as well as prompt recognition of complications with institution of appropriate management, emerges as the obvious reason. The main causes of PPH among the hospital delivery group (Group A) were abruptio placentae and placenta accreta; none of which are preventable and all of which are nearly always associated with significant morbidity despite all attempts to prevent PPH.[13] The time of presentation of PPH in Group A in majority (87%) of the cases was within 6 h of delivery, highlighting the need for continuous vigilance postpartum and prompt action in case of problems.

The mortality in Group B was more than in Group A despite the fact that our hospital caters to a high-risk population (eight versus three). However, the difference in the overall mortality between the hospital deliveries and those delivered elsewhere was not statistically significant. This implies that PPH persists as a cause of mortality despite providing adequate intranatal care.[13],[14],[15] Evaluation of the causes of mortality shows that multiple organ failure was the major cause of mortality in the referred cases and in all these cases, the underlying event was uterine atony, emphasizing the need for active management of labor and prompt management of PPH if it occurs. Such prevention is meaningfully achieved by the use of active management of 3rd stage of labor (oxytocics at anterior shoulder, controlled cord traction, early cord-clamping), which causes reduction in the blood loss, postpartum anemia, need for transfusion and severity of PPH if it occurs.[16]

This study also highlights that the mere assessment of mortality data is not enough. Morbidity parameters are more sensitive and efficient. The incidence of morbidity is quite high in our study. A total "near-miss" morbidity incidence of 10.7% was observed in our study, which is much higher than the reported incidence of 0.05-1.2%.[11],[17],[18] Also, comparison reveals that the referred cases had significantly more morbidity. Organ failure, ICU admissions, intubations, blood transfusions and surgical intervention were significantly higher among the referred group. Organ failure and surgical intervention increased sevenfold and 1.2-fold respectively; while ICU admission, extended intubation and transfusion >3 units were threefold higher among the referred cases. This reveals that morbidity parameters are much more sensitive and should be incorporated in the clinical reviews to evaluate the actual burden of the problem and find better and effective management strategies. Overall, hospital deliveries had a better outcome, milder course and less severity, again implicating substandard care/delayed care as significant as has been shown by other studies.[19] The significantly less morbidity and "near-miss" cases among the hospital deliveries reflects that the prompt institution of active 3rd stage management in all cases helped to reduce the complications. However, since the sample size is small, it is difficult to compare both mortality and morbidity amongst hospital and non-hospital deliveries.
"Near-miss" morbidity score was started with the intention of evaluation of the existing problem in the developed world, where maternal mortality is on the decline, yet the same can be used to identify the load of significant maternal morbidity in the developing countries since it is a sensitive indicator of pregnancy outcome.[11],[17],[18],[19],[20],[21],[22] Most studies have implicated hemorrhage as contributing to 24-64.8% cases of "near-miss" obstetric morbidity and our study has also shown that the "near-miss" morbidity assessment is significantly more informative than mortality.[23],[24],[25],[26] Therefore, its evaluation along with prediction of risk factors will reduce the disease burden and improve health status. Similar conclusions have been also reached with other studies.[11] In conclusion, an assessment of "near-miss" morbidity is as important as mortality data in order to evaluate the actual brunt of the disease in the developing world, where significant morbidity assumes demonic proportions by affecting the quality of life and giving a tsunamic blow to the already staggering economy.

One limitation of this study is that the definition of PPH used is 500 ml blood loss in vaginal deliveries and 1000 ml in cesarean section. This is strictly not in accordance with the WHO definition of PPH, though this is more in agreement with a general observation of blood loss during cesarean section being more than the blood loss during vaginal delivery and also supported by an early study.[4],[5] Perhaps a definition that would make allowance for the operative blood loss of a cesarean section and then assess PPH may resolve this issue in future.

 
  References Top

1.Department of Health. Why mothers die. Report on Confidential Enquiries into Maternal Deaths in the United Kingdom 1994-1996. Dept. of Health (UK): London; 1998.  Back to cited text no. 1    
2.Tuncer RA, Erkaya S, Siphai T, Kutlar I. Maternal mortality in a maternal hospital in Turkey. Acta Obstet Gynecol Scand 1995;74:604-6.  Back to cited text no. 2    
3.al-Meshari A, Chattopadhyay SK, Younes B, Hassonah M. Trends in maternal mortality in Saudi Arabia. Int J Gynecol Obstet 1996;52:25-32.  Back to cited text no. 3  [PUBMED]  [FULLTEXT]
4.Pritchard JA, Baldwin RM, Dickey JC, Wiggins KM. Blood volume changes in pregnancy and the puerperium II. Red blood cell loss and changes in apparent blood volume during and following vaginal delivery, cesarean section and cesarean section plus total hysterectomy. Am J Obstet Gynecol 1962;84:1271-82.  Back to cited text no. 4    
5.World Health Organization. The prevention and management of post partum haemorrhage. Report of a technical working group. WHO: Geneva; 1990.  Back to cited text no. 5    
6.Amy JJ. Severe postpartum haemorrhage: A rational approach. Natl Med J India 1998;11:86-8.  Back to cited text no. 6  [PUBMED]  
7.Drife J. Management of primary post partum haemorrhage. Br J Obstet Gynaecol 1997;104:275-7.  Back to cited text no. 7    
8.Geller SE, Rosenberg D, Cox SM, Kilpatrick S. Defining a conceptual framework for near-miss maternal morbidity. J Am Med Women Assoc 2002;57:135-9.  Back to cited text no. 8  [PUBMED]  
9.Geller SE, Rosenberg D, Cox S, Brown M, Simonson L, Kilpatrick S. A scoring system identified near miss maternal morbidity during pregnancy. J Clin Epidemiol 2004;57:716-20.  Back to cited text no. 9  [PUBMED]  [FULLTEXT]
10.Drife JO. Maternal ¢Near-miss¢ reports? BMJ 1993;307:1087-8.  Back to cited text no. 10  [PUBMED]  
11.Waterstone M, Bewley S, Wolfe C. Incidence and predictors of severe obstetric morbidity: Case-control study. BMJ 2001;322:1089-94.  Back to cited text no. 11    
12.Anonymous Report on Confidential Enquiries into Maternal Deaths in the United Kingdom 1991-1993. HMSO: London; 1996.   Back to cited text no. 12    
13.Grimes DA. The morbidity and mortality of pregnancy: Still risky business. Am J Obstet Gynecol 1994;170:1489-94.  Back to cited text no. 13    
14.Berg CJ, Atarsh HK, Koonin LM, Tucker M. Pregnancy related mortality in the United States, 1987-1990. Obstet Gynecol 1996;88:161-7.  Back to cited text no. 14    
15.Kwask BE. Post- partum hemorrhage: Its contribution to maternal mortality. Midwifery 1991;7:64-70.  Back to cited text no. 15    
16.Prendiville WJ, Elbourne D, McDonald S. Active versus expectant management in the third stage of labor (Cochrane review). Cochrane Database Syst Rev 2000;3:CD000007.   Back to cited text no. 16    
17.Fitzpatrick C, Halligan A, McKenna P, Coughlan BM, Darling MR, Phelan D. Near miss maternal mortality (NMM). Ir Med J 1992;85:37.  Back to cited text no. 17    
18.Mantel GD, Buchmann E, Rees H, Pattinson RC. Severe acute maternal morbidity: A pilot study of a definition for a near-miss. Br J Obstet Gynaecol 1998;105:985-90.  Back to cited text no. 18    
19.Combs CA, Murphy EL, Laros RK Jr. Factors associated with post partum hemorrhage with vaginal birth. Obstet Gynecol 1991;77:69-76.  Back to cited text no. 19    
20.Stones W, Lim W, Al-Azzawi F, Kelly M. An investigation of maternal morbidity with identification of life-threatening 'Near miss' episodes. Health Trends 1991;23:13-5.  Back to cited text no. 20    
21.Bewley S, Creighton SB. 'Near-miss' obstetric enquiry. J Obstet Gynaecol 1997;17:26-9.  Back to cited text no. 21    
22.Baskett TF, Sternadel J. Maternal Intensive Care and near miss mortality in Obstetrics. Br J Obstet Gynecol 1998;105:981-4.  Back to cited text no. 22    
23.Brace V, Penney G, Hall M. Quantifying severe maternal morbidity: A Scottish population study. Br J Obstet Gynecol 2004;111:481-4.  Back to cited text no. 23    
24.Rowan K, Golfrad C. Intensive Care National Audit and Research Centre ICNARC. July 2000.  Back to cited text no. 24    
25.Murphy DJ, Charlett P. Cohort study of near-miss maternal mortality and subsequent reproductive outcome. Eur J Obstet Gynecol Reprod Biol 2002;102:173-8.   Back to cited text no. 25    
26.Tang LC, Kwok AC, Wong AY, Lee YY, Sun KO, So AP. Critical care in obstetrical patients: An 8 year review. Chin Med J Eng 1997;110:936-41.  Back to cited text no. 26    


    Tables

[Table - 1], [Table - 2], [Table - 3]

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