Extracorporeal membrane oxygenation in obstetric patients: An Israeli nationwide study

BACKGROUND

The leading causes of maternal mortality include respiratory failure, cardiovascular events, infections, and hemorrhages. The use of extracorporeal membrane oxygenation (ECMO) as rescue therapy in the peripartum period for cardiopulmonary failure is expanding in critical care medicine.

METHODS

This retrospective observational study was conducted on a nationwide cohort in Israel. During the 3-year period, between September 1, 2019, and August 31, 2022, all women in the peripartum period who had been supported by ECMO for respiratory or circulatory failure at 10 large Israeli hospitals were identified. Indications for ECMO, maternal and neonatal outcomes, details of ECMO support, and complications were collected.

RESULTS

During the 3-year study period, in Israel, there were 540 234 live births, and 28 obstetric patients were supported by ECMO, with an incidence of 5.2 cases per 100 000 or 1 case per 19 000 births (when excluding patients with COVID-19, the incidence will be 2.5 cases per 100 000 births). Of these, 25 were during the postpartum period, of which 16 (64%) were connected in the PPD1, and 3 were during pregnancy. Eighteen patients (64.3%) were supported by V-V ECMO, 9 (32.1%) by V-A ECMO, and one (3.6%) by a VV-A configuration. Hypoxic respiratory failure (ARDS) was the most common indication for ECMO, observed in 21 patients (75%). COVID-19 was the cause of ARDS in 15 (53.7%) patients. The indications for the V-A configuration were cardiomyopathy (3 patients), amniotic fluid embolism (2 patients), sepsis, and pulmonary hypertension. The maternal and fetal survival rates were 89.3% (n = 25) and 100% (n = 28). The average ECMO duration was 17.6 ± 18.6 days and the ICU stay was 29.8 ± 23.8 days. Major bleeding complications requiring surgical intervention were observed in one patient.

CONCLUSIONS

The incidence of using ECMO in the peripartum period is low. The maternal and neonatal survival rates in patients treated with ECMO are high. These results show that ECMO remains an important treatment option for obstetric patients with respiratory and/or cardiopulmonary failure.

Implementation of a Personalized Digital Application for Pediatric Pre-Anesthesia Evaluation and Education: An Ongoing Usability Analysis and Dynamic Improvement Scheme

BACKGROUND

Pre-anesthesia evaluation session is a basic practice preceding any surgical procedure, aimed at tailoring individualized anesthetic plan per patient, improving safety, and providing patients with educational knowledge and tools in preparation for the surgery day. In the last two decades, electronic health (eHealth) and mobile health (mHealth) settings gradually replaced part of the face-to-face encounters as the platform for pre-anesthesia communication between doctor and patient, yielding a range of benefits as demonstrated in recent publications. Yet, there is a lack of studies examining the effectiveness of surgical mHealth applications focusing on the pediatric preanesthetic setting and addressing their usability among families.

OBJECTIVE

This study describes a dynamic approach for the development process of GistMD's pre-anesthesia mHealth system, a mobile-based educational and management system designed for the pediatric setting.

METHODS

The study was conducted in four departments in a 1500-beds quaternary, academic medical center in Tel Aviv, Israel. During the study period, pre-anesthesia system was sent via text message to families whose children were about to undergo surgery. The system included pre-anesthesia questionnaires, educational videos, downloadable instructions, and consent forms. Ongoing collection and examination of usability data were conducted during the implementation term including responsiveness, effectiveness, and satisfaction indicators. The information collected in each stage was used to draw conclusions regarding potential usability gaps of the system and to plan product adjustments for the following period.

RESULTS

In a period of 141 days of implementation, GistMD pre-anesthesia management system was sent to 769 families. Three product fit actions were applied during this term: (1) Change of text message scheduling, aimed at addressing learnability and accessibility, resulted in a significant increase of 27% (χ2 [1] = 12.65, P<.001) in view rates and 27.4% (χ2 [1] = 30.01, P<.001) in satisfaction rates; (2) Reduce the number of screens, aimed at increasing efficiency and operability, resulted in a significant decrease of 8.6% of cases in which users did not perform any activity on the system after logging in (χ2 [1] = 6.18, P=.02); (3) Patient-focused campaign in two departments aimed at addressing memorability, resulted in significant increases in eight of twelve usability indicators.

CONCLUSIONS

Our results indicate that mHealth product-fit decisions derived from theory-based approach and ongoing usability data analysis allow tailoring of most appropriate responses for usability gaps, as reflected in increasing use rates and satisfaction. In the case of the pre-anesthesia management system in the pediatric setting, increased usability conveyed important benefits for patients and families. This work suggests a framework and study methods that may also be applicable in other mHealth settings and domains.

CLINICALTRIAL