Mechanical Properties of the Every Second Matters for Mothers-Uterine Balloon Tamponade (ESM-UBT) Device: In Vitro Tests.

Autor:	Mollazadeh-Moghaddam K; Division of Global Health Innovation, Department of Emergency Medicine, Massachusetts General Hospital, Boston, Massachusetts., Dundek M; Division of Global Health Innovation, Department of Emergency Medicine, Massachusetts General Hospital, Boston, Massachusetts., Bellare A; Division of Global Health Innovation, Department of Emergency Medicine, Massachusetts General Hospital, Boston, Massachusetts., Borovac-Pinheiro A; Division of Global Health Innovation, Department of Emergency Medicine, Massachusetts General Hospital, Boston, Massachusetts.; Department of Obstetrics and Gynecology, School of Medical Sciences, University of Campinas, Campinas, São Paulo, Brazil., Won A; Division of Global Health Innovation, Department of Emergency Medicine, Massachusetts General Hospital, Boston, Massachusetts., Burke TF; Division of Global Health Innovation, Department of Emergency Medicine, Massachusetts General Hospital, Boston, Massachusetts.; Harvard Medical School, Boston, Massachusetts.; Harvard T. H. Chan School of Public Health, Boston, Massachusetts.
Jazyk:	angličtina
Zdroj:	AJP reports [AJP Rep] 2019 Oct; Vol. 9 (4), pp. e376-e383. Date of Electronic Publication: 2019 Dec 05.
DOI:	10.1055/s-0039-1697653
Abstrakt:	Objective  Postpartum hemorrhage (PPH) is the most common cause of maternal mortality and morbidity worldwide, most of which occurs in resource-poor settings. Placement of a uterine balloon may be life-saving in uncontrolled PPH. The Every Second Matters for Mothers-Uterine Balloon Tamponade (ESM-UBT) device is an ultra-low-cost uterine balloon designed for global access. The purpose of this study was to evaluate the mechanical properties of the ESM-UBT device. Study design  Intraluminal pressures, diameters, and burst volumes of condom uterine balloons and Foley catheter balloons of ESM-UBT devices were measured in open air and inside uterus models. Condom uterine balloons were tested with uterus model sizes of 100, 250, and 500mL. The condom-catheter O-ring attachment tensile strength was also evaluated. Results  All 28 samples of ESM-UBT condom uterine balloons maintained their integrity for at least 3 hours when subjected to pressures of 200 mm Hg or greater across each of the tested uterine volumes. No Foley catheter balloons burst after instillation of 30mL, O-rings withstood forces of 15.4 ± 2.1 N, and condom uterine balloons stretched to 35.8 ± 2.1 cm without loss of integrity. Conclusion  The mechanical properties of the ESM-UBT device make it attractive for scale across resource-poor settings. Competing Interests: Conflict of Interest None declared.
Databáze:	MEDLINE
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