Use of a novel electronic maternal surveillance system to generate automated alerts on the labor and delivery unit

Table 3 Frequency of Aberrant Vital Signs Recorded by High Risk Bedside Monitors

Number of Recorded Values^a	Maternal Early Warning Criteria				Authors’ “Flashing Red” Criteria				Authors’ Automated Paging Criteria
Number of Recorded Values^a	Criteria	Events^b	Percent of Recorded Values	Events/24 Hours	Criteria	Events	Percent of Recorded Values	Events/24 Hours	Physician Paging Criteria	Pages to OB	Pages to OB/ 24 Hours
47,016	Systolic BP < 90	1170	2.49%	12.86	Systolic BP < 85	581	1.24%	6.38	Systolic BP < 85	87	0.956
47,016	Systolic BP > 160	910	1.94%	10.00	Systolic BP > = 160	1021	1.03%	11.22	Systolic BP > = 160	260	2.85
97,558	Diastolic BP > 100	1317	2.80%	14.47	Diastolic BP > = 110	483	1.24%	5.31	Diastolic BP > = 110	37	0.407
143,799	SpO2 < 95%	4996	5.12%	54.90
143,799	Heart Rate < 50	602	0.42%	6.62
47,016	Heart Rate > 120	4676	3.25%	51.38	Heart Rate > = 130	2168	4.61%	23.82	Heart Rate > = 130	190	2.09
	Total Events Per 24 Hours			150.2	Total Events Per 24 Hours			46.7	Total Pages Per 24 Hours		6.30

^aThe data in this table are based on the vital signs recorded by the bedside monitors in 34 high risk patient rooms over a 91 day period from April 1, 2017 to July 1, 2017
^bThese vital signs frequencies in this table are taken directly from the bedside monitor without nurse verification, and therefore likely contain some artefactual readings

ISSN: 1471-2253