Center for Population and Reproductive Health, College of Medicine/University College Hospital, University of Ibadan, Ibadan, Nigeria.
Gynecol Obstet Invest. 2011;71(1):66-72. doi: 10.1159/000316053. Epub 2010 Dec 15.
BACKGROUND/AIMS: Postpartum hemorrhage (PPH) is the leading cause of maternal mortality. The non-pneumatic anti-shock garment (NASG), a first-aid lower-body pressure device, may decrease mortality.
This pre-intervention/NASG study of 288 women was conducted in four referral facilities in Nigeria, 2004-2008. Entry criteria: women with PPH due to uterine atony, retained placenta, ruptured uterus, vaginal or cervical lacerations or placenta accreta with estimated blood loss of ≥750 ml and one clinical sign of shock. Differences in demographics, conditions on study entry, treatment and outcomes were examined. t tests and relative risks with 95% confidence intervals were calculated for primary outcomes - measured blood loss and mortality. Multiple logistic regression analysis was performed to examine independent association of the NASG with mortality.
Mean measured blood loss decreased by 80% between phases. Women experienced 350 ml of median blood loss after study entry in the pre-intervention and 50 ml in the NASG phase (p < 0.0001). Mortality decreased from 18% pre-intervention to 6% in the NASG phase (RR = 0.31, 95% CI 0.15-0.64, p = 0.0007). In a multiple logistic regression model, the NASG was associated with reduced mortality (odds ratio 0.30; 95% CI 0.13-0.68, p = 0.004).
The NASG shows promise for reducing mortality from PPH in referral facilities in Nigeria.
背景/目的:产后出血(PPH)是产妇死亡的主要原因。非充气式抗休克服(NASG),一种急救下肢加压装置,可能降低死亡率。
本研究为干预前/NASG 研究,纳入尼日利亚四家转诊机构的 288 名妇女,时间为 2004-2008 年。纳入标准:因宫缩乏力、胎盘滞留、子宫破裂、阴道或宫颈裂伤或胎盘粘连导致 PPH,估计出血量≥750ml 且出现休克的一个临床体征。比较两组人口统计学、入组时病情、治疗和结局的差异。计算主要结局(测量出血量和死亡率)的 t 检验和 95%置信区间的相对风险。采用多因素逻辑回归分析,检验 NASG 与死亡率的独立相关性。
测量出血量平均减少 80%。干预前研究入组时女性中位出血量为 350ml,而 NASG 组为 50ml(p<0.0001)。死亡率从干预前的 18%降至 NASG 组的 6%(RR=0.31,95%CI 0.15-0.64,p=0.0007)。多因素逻辑回归模型显示,NASG 与死亡率降低相关(比值比 0.30,95%CI 0.13-0.68,p=0.004)。
在尼日利亚的转诊机构中,NASG 显示出降低 PPH 死亡率的潜力。