Abstract
Purpose
There is little information on the use of extracorporeal membrane oxygenation (ECMO) in pregnant women. Our objectives are to estimate the use of ECMO in pregnant patients, identify clinical conditions associated with ECMO use, and assess survival rates by the associated condition.
Methods
Using the Healthcare Cost and Utilization Project–Nationwide Inpatient Sample, we carried out a retrospective cohort study of all delivery admissions in the United States from January 1, 1999, to October 1, 2015. Within the cohort, women who received ECMO therapy were identified using ICD-9 codes and then survival rates among these women were calculated.
Results
There were 83 women who underwent ECMO therapy in our cohort of 15,335,205 births, for an overall ECMO use rate of 0.54/100,000 pregnancies. The incidence of ECMO use increased from 0.23/100,000 in 1999 to 2.57/100,000 in 2015. Patients on ECMO were more likely to be older, have a lower income, and have pre-existing medical conditions when compared with the patients not on ECMO. The overall survival rate for the ECMO group was 62.7%. The most common reason for ECMO use was acute respiratory failure. Etiologies associated with the highest survival in those on ECMO were pneumonia and venous thromboembolism, which were found to have survival rates of 75.0% and 81.0%, respectively.
Conclusion
The incidence of ECMO use in the obstetric population increased over the last decade and a half. Although it carries a limited survival rate within this population, it has proven life-saving for many suffering from complications of pregnancy and delivery.
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NS: contributed to study design; interpretation of data; drafting of the manuscript; read and approved the final version of the manuscript. NC-S: data management; formal data analysis; revision of the manuscript; read and approved the final version of the manuscript. AS: contributed to study design; interpretation of data; revising of original manuscript; read and approved the final version of the manuscript. HA: conception and design; acquisition of data; supervision of analyses; interpretation of data; critical revision of the manuscript for important intellectual content; read and approved the final version of the manuscript.
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The authors report no conflict of interest. We had full control of all primary data and we agree to allow the Journal to review this data if requested.
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This study exclusively used data from an existing administrative database. This data was publicly available; hence, according to the Tri-Council Policy statement (2010), institutional review board approval was not required.
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This study used publicly available data; hence, we did not personally obtain informed consent from study subjects. This would be the responsibility of the Agency for Healthcare Research and Quality (AHRQ), who sponsors the National Inpatient Sample.
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Sebastian, N., Czuzoj-Shulman, N., Spence, A.R. et al. Use of extracorporeal membrane oxygenation in obstetric patients: a retrospective cohort study. Arch Gynecol Obstet 301, 1377–1382 (2020). https://doi.org/10.1007/s00404-020-05530-5
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DOI: https://doi.org/10.1007/s00404-020-05530-5