• L G Segura, K W Arendt, H P Sviggum, C R Haider, M Y Qureshi, T N Weingarten, J N Johnson, and R Ruano.
• Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN, USA. Electronic address: segura.leal@mayo.edu.
• Int J Obstet Anesth. 2020 Nov 1; 44: 16-19.

AbstractContinuous fetal hemodynamic monitoring during in-utero surgery is desirable, but it is often not feasible without intermittent interruption. We report the use of a fetal spiral electrode for continuous heart rate monitoring during fetal myelomeningocele repair. Fetal echocardiography and a fetal spiral electrode were used to monitor fetal heart rate during in-utero repair at 25 weeks' gestation. We observed good agreement between echocardiographic and spiral electrode heart rate measurements. Using the Bland-Altman approach, the mean (SD) difference between measurements was 1.8 (3.5) beats per minute with limits of agreement of -5.3 to 8.8 beats per minute. This case illuminates a potential role for a fetal spiral electrode as a real-time adjunct in fetal interventions.Copyright © 2020 Elsevier Ltd. All rights reserved.

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