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Table 1 Type of fetal monitor in cases of fetal or neonatal death associated with cardiotocography reported to the U.S. FDA, March 31, 2009 to March 31, 2019

From: Unrecognized maternal heart rate artefact in cases of perinatal mortality reported to the United States Food and Drug Administration from 2009 to 2019: a critical patient safety issue

Type of fetal monitor

Cases out of total 117 cases

Cases out of 47 with probable MHRA (% of the cases with probable MHRA)

Avalon (Philips)

72 (62%)

34 (72%)

Corometrics (General Electric)

9 (8%)

2 (4%)

HP 1350 (Hewlett Packard)

1 (0.8%)

0 (0%)

SONICAID (HUNTLEIGH)

9 (8%)

4 (9%)

Neoventa STAN

4 (3%)

0 (0%)

50 Series Philips

20 (17%)

7 (15%)

Spacelabs

2 (0.02%)

0 (0%)