The Effectiveness of a Collector Bag for Measurement of Post-partum Hemorrhage

Zahra Abbaspoor, Leila Vaziri

Abstract

The aim of the study was to assess sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV) of collector bag and its correlation with hemoglobin (Hb) and hematocrit (Ht) variations. This study, carried on 100 women referred for admission to labor ward of Shohada hospital in Orumeyeh City, Iran, from April to November, 2007. Serum Hb and Ht were measured after admission; a collecting bag placed under the pelvis just after birth and was weighted after delivery. Hb and Ht were again assessed at 8 hr after delivery. PPH was defined as blood loss ˃500 ml following vaginal delivery. Each 500 ml blood loss accounts for approximately a 3% change in the Ht level or a falling in Hb of 1 g/dl. With this cut off our noted Sensitivity=80%, Specificity=95. 7%, PPV= 88.9% and NPV= 91.8%. The collector bag is a rapid and precise instrument to diagnose of postpartum hemorrhage in the delivery room. It also enables a visual, quantitative and objective estimation of blood loss. (Afr J Reprod Health 2017; 21[1]: 99-103).

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References

Roberts C, Ford J, Algert C, Bell J, Simpson J, Morris J.

Trends in adverse maternal outcomes during childbirth: a population-based study of severe maternal morbidity. BMC pregnancy and childbirth 2009; 9(1): 7.

Khan KS, Wojdyla D, Say L, Gülmezoglu AM, Van Look

PFA. WHO analysis of causes of maternal death: a systematic review. The Lancet 2006; 367(9516): 1066-74.

Callaghan WM, MacKay AP, Berg CJ. Identification of

severe maternal morbidity during delivery hospitalizations, United States, 1991-2003. American journal of obstetrics and gynecology 2008; 199(2): 133. e1-. e8.

Cunningham FG, Bloom SL, Leveno KJ. Williams

Obstetrics 22 Ed; 2005.

Zhang W, Alexander S, Bouvier-Colle M, Macfarlane A.

MOMS-B Group. Incidence of severe pre-eclampsia, postpartum haemorrhage and sepsis as a surrogate marker for severe maternal morbidity in a European population-based study: the MOMS-B survey. BJOG 2005; 112(1): 89-96.

Al‐Zirqi I, Vangen S, Forsen L, Stray‐Pedersen B.

Prevalence and risk factors of severe obstetric haemorrhage. BJOG: An International Journal of Obstetrics & Gynaecology 2008; 115(10): 1265-72.

AbouZahr C. Antepartum and postpartum haemorrhage.

Global Burden of Disease and Injury Series 1998; 3: 165-90.

Iran Ministry of Health and Medical Education (IMHME),

Organization of Mother and Child Health, 2006. Available from: 〈http://www.fhp.hbi/FHPPages/ MothersOf ficeHealthINDpage.htm〉(in Persian).

Berg CJ, Harper MA, Atkinson SM, Bell EA, Brown HL,

Hage ML, et al. Preventability of pregnancy-related deaths: results of a state-wide review. Obstetrics & Gynecology. 2005;106(6):1228-34.

Mander R, Smith GD. Saving Mothers' Lives (formerly

Why Mothers die): reviewing maternal deaths to make motherhood safer 2003-2005. Midwifery 2008;

(1): 8-12.

Duthie SJ, Ven D, Yung GLK, Guang DZ, Chan SYW, Ma

HK. Discrepancy between laboratory determination and visual estimation of blood loss during normal delivery. European Journal of Obstetrics & Gynecology and Reproductive Biology 1991; 38(2): 119-24.

Stafford I, Dildy GA, Clark SL, Belfort MA. Visually

estimated and calculated blood loss in vaginal and cesarean delivery. American journal of obstetrics and gynecology 2008; 199(5): 519. e1-. e7.

Dildy III GA, Paine AR, George NC, Velasco C.

Estimating blood loss: can teaching significantly improve visual estimation? Obstetrics & Gynecology 2004; 104(3): 601.

Combs CA, Murphy EL, Laros Jr RK. Factors associated

with hemorrhage in cesarean deliveries. Obstetrics & Gynecology 1991; 77(1): 77.

Tourne G, Collet F, Lasnier P, Seffert P. Usefulness of a

collecting bag for the diagnosis of post-partum hemorrhage. Journal de gynécologie, obstétrique et biologie de la reproduction 2004; 33(3): 229.

Zhang WH, Deneux-Tharaux C, Brocklehurst P, Juszczak

E, Joslin M, Alexander S. Effect of a collector bag for measurement of postpartum blood loss after vaginal delivery: cluster randomised trial in 13 European countries. BMJ: British Medical Journal 2010; 340.

Patel A, Goudar SS, Geller SE, Kodkany BS, Edlavitch SA,

Wagh K et al. Drape estimation vs. visual assessment for estimating postpartum hemorrhage. Int J Gynaecol Obstet 2006; 93: 220–224.

Chua S, Ho LM, Vanaja K, Nordstrom L, Roy AC,

Arulkumaran S. Validation of a laboratory method of measuring postpartum blood loss. Gynecol Obstet Invest 1998; 46: 31–33. goi46031 [pii].

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