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. 2020 Nov 16;10(4):e380–e385. doi: 10.1055/s-0040-1718900

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The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. ( https://creativecommons.org/licenses/by-nc-nd/4.0/ )

This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License, which permits unrestricted reproduction and distribution, for non-commercial purposes only; and use and reproduction, but not distribution, of adapted material for non-commercial purposes only, provided the original work is properly cited.

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Fig. 1 — Cardiotocograph from case 2. In the upper panel, the hand written notes illustrate where the heart rate tracing (vertical scale 50–210 beats per minute, bpm) is lost but the fetal heart rate is documented by auscultation, and found to be 220 to 246 bpm. The lower panel illustrates the pressure of the uterine contractions (vertical scale 0–100 kilopascals, kPa).