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Titolo:
ALARM ACTIVITY OF VENTILATORS AFTER SIMUL ATED CRITICAL EVENTS ON CMVIPPV MODE
Autore:
BENDER HJ; FRANKENBERGER H; RYLL C; ALBRECHT MD;
Indirizzi:
UNIV HEIDELBERG,KLINIKUM MANNHEIM,INST ANAESTHESIOL & OPERAT INTENS MED,THEODOR KUTZER UFER W-6800 MANNHEIM 1 GERMANY FACHHSCH LUBECK,MED TECH LAB LUBEC GERMANY
Titolo Testata:
Anasthesist
fascicolo: 6, volume: 42, anno: 1993,
pagine: 365 - 375
SICI:
0003-2417(1993)42:6<365:AAOVAS>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
GER
Soggetto:
DISCONNECTION;
Keywords:
VENTILATORS; ALARM DETECTION; CRITICAL EVENT SIMULATION; RESPIRATORY MECHANICS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
15
Recensione:
Indirizzi per estratti:
Citazione:
H.J. Bender et al., "ALARM ACTIVITY OF VENTILATORS AFTER SIMUL ATED CRITICAL EVENTS ON CMVIPPV MODE", Anasthesist, 42(6), 1993, pp. 365-375

Abstract

Alarm systems of ventilators enhance detection of possible critical events during artificial ventilation. Due to their significance, in some countries the alarm detection of ventilators is regulated by federallaw. Up to now, no recommendations for the adjustment of alarm limitsexist and only a few detailed investigations of the accuracy of alarmdetection are available. Methods. The response of four commercially available ventilators (Servo-ventilator 900C, Siemens, Inc.; Bennett 7200a, Hoyer, Inc.; Veolar, Hamilton, Inc.; EVITA, Drager, Inc.) to critical events during artificial ventilation of a test lung were evaluated. We measured the alarm time (the time between event creation and alarm response) of ten different simulated critical events including disconnection, differentsized leaks, failure of the gas supply, and obstruction at different places in the artificial airway. Discussion. All respirators were able to recognise severe critical situations such as hose disconnection, failure of gas supply, and total airway obstruction within a short time (< 15 s). The recognition of small airway leaks was more difficult for the ventilators even when the alarm thresholds were close. The alarm detection of the EVITA (software 10.0 or less) under conditions of partial airway obstruction may be a source of risk for the patient as the machine continued supplying inspiration with pressure-limited ventilation even when the pressure threshold was reached.

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Documento generato il 11/08/20 alle ore 21:28:52