| Preliminary clinical trials of a computer-based cardiac arrest alarm. | |
| | |
MedLine Citation:
|
PMID: 1744329 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
The use of a high reliability cardiac arrest alarm utilising the continuously monitored values of patient heart rate and mean arterial blood pressure is described, based on a sample of 167 patients monitored for a total of 5116 h. The analogue heart rate and mean blood pressure signals are sampled at 1 s intervals, and a smoothing algorithm is applied to each of the resulting series which rejects artefacts, and identifies slope and step changes in each. Certain combinations of events in the 2 series, occurring within a preset time window, determine whether a cardiac arrest alarm or warning signal should be activated by the system. A total of 30 acute events occurring in 14 patients during the course of the study were each identified within 10 s. No cardiac arrest event was misdiagnosed by the algorithm during the period of the study. The algorithm also generates warnings which may have predictive value, and which will be the subject of further research. A final false alarm rate of about 1/200 h of monitoring was observed in adults (1/50 h in children), with evidence that these rates could be substantially improved. |
| | |
Authors:
|
A D Crew; K D Stoodley; R Lu; S Old; M Ward |
Related Documents
:
|
9161909 - Current concepts in cardiopulmonary resuscitation. 17669759 - Resternotomy in pediatric cardiac surgery: coseal initial experience. 16325989 - Continuous renal replacement therapy may aid recovery after cardiac arrest. 22019599 - Impact of heart rate and rhythm on radiation exposure in prospectively ecg triggered co... 3954169 - Brain iron delocalization and lipid peroxidation following cardiac arrest. 17118509 - Epidemiology, trends, and outcome of out-of-hospital cardiac arrest of non-cardiac origin. 19700469 - Abnormal coronary reserve and left ventricular wall motion during cold pressor test in ... 11161949 - Cardiac risk factors, medication, and recurrent clinical events after acute coronary di... 7352399 - Clinical characteristics, electrocardiographic and enzyme correlations, and long-term p... |
Publication Detail:
|
Type: Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
|
Title: Intensive care medicine Volume: 17 ISSN: 0342-4642 ISO Abbreviation: Intensive Care Med Publication Date: 1991 |
Date Detail:
|
Created Date: 1992-01-16 Completed Date: 1992-01-16 Revised Date: 2006-11-15 |
Medline Journal Info:
|
Nlm Unique ID: 7704851 Medline TA: Intensive Care Med Country: UNITED STATES |
Other Details:
|
Languages: eng Pagination: 359-64 Citation Subset: IM |
Affiliation:
|
Yorkshire Regional Cardiothoracic Centre, Killingbeck Hospital, Leeds, UK. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Algorithms Artifacts Blood Pressure Child, Preschool Diagnosis, Computer-Assisted / instrumentation* Equipment Failure* Heart Arrest / diagnosis*, epidemiology, physiopathology Heart Rate Humans Middle Aged Monitoring, Physiologic / instrumentation* Predictive Value of Tests |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: The P50 is reduced in critically ill patients.
Next Document: Respiratory changes after open-heart surgery.