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Titolo:
Acoustic monitoring of intraoperative neuromuscular block
Autore:
Dascalu, A; Geller, E; Moalem, Y; Manoah, M; Enav, S; Rudick, Z;
Indirizzi:
Tel Aviv Univ, Sackler Sch Med, Dept Physiol & Pharmacol, IL-69978 Ramat Aviv, Israel Tel Aviv Univ Ramat Aviv Israel IL-69978 ol, IL-69978 Ramat Aviv, Israel Ichilov Med Ctr, Dept Anaesthesiol & Crit Care Med, Tel Aviv, Israel Ichilov Med Ctr Tel Aviv Israel esiol & Crit Care Med, Tel Aviv, Israel Tel Aviv Univ, Sackler Fac Med, Dept Biomed Engn, IL-69978 Ramat Aviv, Israel Tel Aviv Univ Ramat Aviv Israel IL-69978 gn, IL-69978 Ramat Aviv, Israel
Titolo Testata:
BRITISH JOURNAL OF ANAESTHESIA
fascicolo: 3, volume: 83, anno: 1999,
pagine: 405 - 409
SICI:
0007-0912(199909)83:3<405:AMOINB>2.0.ZU;2-N
Fonte:
ISI
Lingua:
ENG
Soggetto:
HUMAN SKELETAL-MUSCLE; ADDUCTOR POLLICIS; ALCURONIUM; SOUND; COMPLICATIONS; CONTRACTION; PANCURONIUM; RECOVERY; ONSET; HAND;
Keywords:
neuromuscular block, measurement of response; monitoring, neuromuscular block; equipment, microphone;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
23
Recensione:
Indirizzi per estratti:
Indirizzo: Dascalu, A Tel Aviv Univ, Sackler Sch Med, Dept Physiol & Pharmacol, Room 501, IL-69978 Ramat Aviv, Israel Tel Aviv Univ Room 501 Ramat Aviv Israel IL-69978 Aviv, Israel
Citazione:
A. Dascalu et al., "Acoustic monitoring of intraoperative neuromuscular block", BR J ANAEST, 83(3), 1999, pp. 405-409

Abstract

Standard methods for accurate intraoperative measurement of neuromuscular block are either expensive or inconvenient and are not used widely. We haveevaluated a new method of monitoring neuromuscular block using a low-frequency microphone. The method is based on the phenomenon of low-frequency sound emission by contracting skeletal muscle. Acoustic monitoring (MIC) with an air-coupled microphone was used to evaluate intraoperative neuromuscularblock in 25 anaesthetized patients. The MIC recorded the response of the adductor pollicis muscle to supramaximal electrical stimulation of the ulnarnerve with train-of-four stimuli. The ratios of the first response (TI) tocontrol (T-C) were used for evaluation. Data obtained from the MIC were compared with simultaneous recordings, from the same hand, of mechanomyography (FDT), electromyography (EMC) and accelerography (ACC). Throughout the operative procedure, TI/T-C ratios of the acoustic method correlated with thethree reference devices: FDT, 12 patients, 262 data sets, r=0.86, bias (%MIC-%FDT)= mean -5.3 (SD 19.6)%; EMG, 18 patients, 490 data sets, r=0.85, bias (%MIC-%EMG)= -0.39 (20.29)%; and ACC, 13 patients, 328 data sets, r=0.91, bias (%MIC-%ACC)= -3.0 (15.6)%. We conclude that monitoring intraoperative neuromuscular block by a microphone which transduces low-frequency musclesounds is clinically feasible.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 31/03/20 alle ore 19:36:39