Use of the non-pneumatic anti-shock garment (NASG) for life-threatening obstetric hemorrhage: a cost-effectiveness analysis in Egypt and Nigeria.

OBJECTIVE: To assess the cost-effectiveness of a non-pneumatic anti-shock garment (NASG) for obstetric hemorrhage in tertiary hospitals in Egypt and Nigeria. METHODS: We combined published data from pre-intervention/NASG-intervention clinical trials with costs from study sites. For each country, we used observed proportions of initial shock level (mild: mean arterial pressure [MAP] >60 mmHg; severe: MAP ≤60 mmHg) to define a standard population of 1,000 women presenting in shock. We examined three intervention scenarios: no women in shock receive the NASG, only women in severe shock receive the NASG, and all women in shock receive the NASG. Clinical data included frequencies of adverse health outcomes (mortality, severe morbidity, severe anemia), and interventions to manage bleeding (uterotonics, blood transfusions, hysterectomies). Costs (in 2010 international dollars) included the NASG, training, and clinical interventions. We compared costs and disability-adjusted life years (DALYs) across the intervention scenarios. RESULTS: For 1000 women presenting in shock, providing the NASG to those in severe shock results in decreased mortality and morbidity, which averts 357 DALYs in Egypt and 2,063 DALYs in Nigeria. Differences in use of interventions result in net savings of $9,489 in Egypt (primarily due to reduced transfusions) and net costs of $6,460 in Nigeria, with a cost per DALY averted of $3.13. Results of providing the NASG for women in mild shock has smaller and uncertain effects due to few clinical events in this data set. CONCLUSION: Using the NASG for women in severe shock resulted in markedly improved health outcomes (2-2.9 DALYs averted per woman, primarily due to reduced mortality), with net savings or extremely low cost per DALY averted. This suggests that in resource-limited settings, the NASG is a very cost-effective intervention for women in severe hypovolemic shock. The effects of the NASG for mild shock are less certain.

Nurses in low resource settings save mothers' lives with non-pneumatic anti-shock garment.

PURPOSE: To discuss the role of nurses and nurse-midwives in preventing and treating postpartum hemorrhage (PPH) from uterine atony in developing countries and examine the role of a new device, the non-pneumatic anti-shock garment (NASG), in improving the outcomes for these patients. STUDY DESIGN AND METHODS: In this subanalysis of a larger preintervention phase/intervention phase study of 1,442 women with obstetric hemorrhage, postpartum women with hypovolemic shock (N = 578) from uterine atony (≥750 mL blood loss; systolic blood pressure <100 mmHg and/or pulse >100 beats per minute) were enrolled in two referral facilities in Egypt and four referral facilities in Nigeria. The study had two temporal phases: a preintervention phase and an NASG-intervention phase. Women with hemorrhage and shock in both phases were treated with the same evidence-based protocols for management of hypovolemic shock and hemorrhage, but women in the NASG-intervention phase also received the NASG. Relative risks (RRs) with 95% confidence intervals (CIs) were estimated for primary outcomes-measured blood loss, incidence of emergency hysterectomy, and mortality. RESULTS: Women in the NASG-intervention phase had significantly better outcomes, 50% lower blood loss, reduced rates of hysterectomy (8.9% vs. 4%), and mortality decreased from 8.5% to 2.3% (RR = 0.27, 95% CI: 0.12-0.60). CLINICAL IMPLICATIONS: In low-resource settings nurses have few resources with which to stabilize women with severe PPH. With training nurses and nurse-midwives can stabilize hemorrhaging women with the NASG, a low-technology first-aid device that shows promise for reducing blood loss, rates of hysterectomy, and mortality.

Assessing the role of the non-pneumatic anti-shock garment in reducing mortality from postpartum hemorrhage in Nigeria.

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. METHODS: 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. RESULTS: 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). CONCLUSION: The NASG shows promise for reducing mortality from PPH in referral facilities in Nigeria.

Positive effects of the non-pneumatic anti-shock garment on delays in accessing care for postpartum and postabortion hemorrhage in Egypt and Nigeria.

BACKGROUND: We examined whether the non-pneumatic anti-shock garment (NASG) ameliorates the effects of delays in transport to and treatment at hospitals for women with postpartum hemorrhage (PPH) and postabortion hemorrhage (PAH) and investigated the effects of NASG use on timing of delivery of interventions in-hospital. METHODS: Pre/post studies of the NASG were conducted at hospitals in Cairo (n = 349 women), Assuit (n = 274), Southern Nigeria (n = 57), and Northern Nigeria (n = 124). In post-hoc analyses, comparisons of delays were conducted using analysis of variance (ANOVA), and associations of delays with extreme adverse outcomes (EAO, mortality or severe morbidity) were examined using chi-square tests, odds ratios (ORs), and multivariate logistic regression. RESULTS: Median minutes from hemorrhage start to study admission differed by site, ranging from 15 minutes in Cairo to 225 minutes in Northern Nigeria (p < 0.001). Median minutes from study admission to blood transfusion ranged from 30 minutes in Cairo to 209 minutes in Southern Nigeria (p < 0.001). Twenty percent of women with ≥60 minutes between hemorrhage start and study admission experienced an EAO without the NASG compared with only 6% with the NASG (χ(2) = 13.71, p < 0.001). In-hospital delays in receiving intravenous (IV) fluids and blood were more common in the NASG phase. CONCLUSIONS: Women with PPH or PAH in Egypt and Nigeria often face delays in reaching emergency obstetrical care facilities and delays in receiving definitive therapies after arrival. Our results indicate that the NASG can reduce the impact of these delays. Stabilization does not replace treatment, however, and delays in fluid/blood administration with NASG use must be avoided.

Obstetric hemorrhage and shock management: using the low technology Non-pneumatic Anti-Shock Garment in Nigerian and Egyptian tertiary care facilities.

BACKGROUND: Obstetric hemorrhage is the leading cause of maternal mortality globally. The Non-pneumatic Anti-Shock Garment (NASG) is a low-technology, first-aid compression device which, when added to standard hypovolemic shock protocols, may improve outcomes for women with hypovolemic shock secondary to obstetric hemorrhage in tertiary facilities in low-resource settings. METHODS: This study employed a pre-intervention/intervention design in four facilities in Nigeria and two in Egypt. Primary outcomes were measured mean and median blood loss, severe end-organ failure morbidity (renal failure, pulmonary failure, cardiac failure, or CNS dysfunctions), mortality, and emergency hysterectomy for 1442 women with ≥750 mL blood loss and at least one sign of hemodynamic instability. Comparisons of outcomes by study phase were assessed with rank sum tests, relative risks (RR), number needed to treat for benefit (NNTb), and multiple logistic regression. RESULTS: Women in the NASG phase (n = 835) were in worse condition on study entry, 38.5% with mean arterial pressure <60 mmHg vs. 29.9% in the pre-intervention phase (p = 0.001). Despite this, negative outcomes were significantly reduced in the NASG phase: mean measured blood loss decreased from 444 mL to 240 mL (p < 0.001), maternal mortality decreased from 6.3% to 3.5% (RR 0.56, 95% CI 0.35-0.89), severe morbidities from 3.7% to 0.7% (RR 0.20, 95% CI 0.08-0.50), and emergency hysterectomy from 8.9% to 4.0% (RR 0.44, 0.23-0.86). In multiple logistic regression, there was a 55% reduced odds of mortality during the NASG phase (aOR 0.45, 0.27-0.77). The NNTb to prevent either mortality or severe morbidity was 18 (12-36). CONCLUSION: Adding the NASG to standard shock and hemorrhage management may significantly improve maternal outcomes from hypovolemic shock secondary to obstetric hemorrhage at tertiary care facilities in low-resource settings.

Can the Non-pneumatic Anti-Shock Garment (NASG) reduce adverse maternal outcomes from postpartum hemorrhage? Evidence from Egypt and Nigeria.

BACKGROUND: Postpartum hemorrhage (PPH) is the leading cause of maternal mortality and severe maternal morbidity. The Non-pneumatic Anti-Shock Garment (NASG), a first-aid lower-body compression device, may decrease adverse outcomes from obstetric hemorrhage. This article is the first to report the effect of the NASG for PPH. METHODS: This pre-intervention/NASG study of 854 women was conducted in four referral facilities in Nigeria and two in Egypt between 2004-2008. Entry criteria were 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. The Wilcoxon rank-sum test and relative risks with 95% confidence intervals were calculated for primary outcomes - measured blood loss, emergency hysterectomy, mortality, morbidity (each individually), and a combined variable, "adverse outcomes", defined as severe morbidity and mortality. A multiple logistic regression model was fitted to test the independent association between the NASG and the combined severe morbidity and mortality outcome. RESULTS: Measured blood loss decreased by 50% between phases; women experienced 400 mL of median blood loss after study entry in the pre-intervention and 200 mL in the NASG phase (p < 0.0001). As individual outcomes, mortality decreased from 9% pre-intervention to 3.1% in the NASG phase (RR 0.35, 95% CI 0.19-0.62); severe morbidity decreased from 4.2% to 1%, in the NASG phase (RR 0.24, 95% CI 0.09-0.67). As a combination, "adverse outcomes," decreased from 12.8% to 4.1% in the NASG phase (RR 0.32, 95% CI 0.19-0.53). In a multiple logistic regression model, the NASG was associated with the combined outcome of severe maternal morbidity and mortality (OR 0.42, 95% CI 0.18-0.99). CONCLUSION: In this non-randomized study, in which bias is inherent, the NASG showed promise for reducing blood loss, emergency hysterectomy, morbidity and mortality associated with PPH in referral facilities in Egypt and Nigeria.

A comparative study of the non-pneumatic anti-shock garment for the treatment of obstetric hemorrhage in Nigeria.

OBJECTIVE: To determine whether the non-pneumatic anti-shock garment (NASG) can improve maternal outcome. METHODS: Women were enrolled in a pre-intervention phase (n=83) and an intervention phase (n=86) at a referral facility in Katsina, Nigeria, from November 2006 to November 2007. Entry criteria were obstetric hemorrhage (>or=750 mL) and a clinical sign of shock (systolic blood pressure <100 mm Hg or pulse >100 beats per minute). To determine differences in demographics, condition on study entry, treatment, and outcome, t tests and chi(2) tests were used. Relative risk (RR) and 95% confidence interval (CI) were estimated for the primary outcome, mortality. RESULTS: Mean measured blood loss in the intervention phase was 73.5+/-93.9 mL, compared with 340.4+/-248.2 mL pre-intervention (P<0.001). Maternal mortality was lower in the intervention phase than in the pre-intervention phase (7 [8.1%]) vs 21 [25.3%]) (RR 0.32; 95% CI, 0.14-0.72). CONCLUSION: The NASG showed potential for reducing blood loss and maternal mortality caused by obstetric hemorrhage-related shock.