First name
James
Last name
Weimer

Title

Alarm Burden in Infants With Bronchopulmonary Dysplasia Monitored With Pulse Oximetry at Home.

Year of Publication

2022

Number of Pages

e2218367

Date Published

06/2022

ISSN Number

2574-3805

DOI

10.1001/jamanetworkopen.2022.18367

Alternate Title

JAMA Netw Open

PMID

35737392
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Title

Reducing Pulse Oximetry False Alarms Without Missing Life-Threatening Events.

Year of Publication

2018

Number of Pages

287-296

Date Published

2018 Dec

ISSN Number

2352-6483

Abstract

<p>Alarm fatigue has been increasingly recognized as one of the most significant problems in the hospital environment. One of the major causes is the excessive number of false physiologic monitor alarms. An underlying problem is the inefficient traditional threshold alarm system for physiologic parameters such as low blood oxygen saturation (SpO). In this paper, we propose a robust classification procedure based on the AdaBoost algorithm with reject option that can identify and silence false SpO alarms, while ensuring zero misclassified clinically significant alarms. Alarms and vital signs related to SpO such as heart rate and pulse rate, within monitoring interval are extracted into different numerical features for the classifier. We propose a variant of AdaBoost with reject option by allowing a third decision (i.e., reject) expressing doubt. Weighted outputs of each weak classifier are input to a softmax function optimizing to satisfy a desired false negative rate upper bound while minimizing false positive rate and indecision rate. We evaluate the proposed classifier using a dataset collected from 100 hospitalized children at Children's Hospital of Philadelphia and show that the classifier can silence 23.12% of false SpO alarms without missing any clinically significant alarms.</p>

DOI

10.1016/j.smhl.2018.07.002

Alternate Title

Smart Health (Amst)

PMID

30778396
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