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Titolo:
Performance of nasal prongs in sleep studies - Spectrum of flow-related events
Autore:
Hernandez, L; Ballester, E; Farre, R; Badia, JR; Lobelo, R; Navajas, D; Montserrat, JM;
Indirizzi:
Hosp Clin Barcelona, Inst Clin Pneumol & Cirurgia Torac, E-08036 Barcelona, Spain Hosp Clin Barcelona Barcelona Spain E-08036 ac, E-08036 Barcelona, Spain Univ Barcelona, Fac Med, Unitat Biofis & Bioenginveria, Inst Invest BiomedAugust Pi Sumyer, Barcelona 7, Spain Univ Barcelona Barcelona Spain 7 medAugust Pi Sumyer, Barcelona 7, Spain
Titolo Testata:
CHEST
fascicolo: 2, volume: 119, anno: 2001,
pagine: 442 - 450
SICI:
0012-3692(200102)119:2<442:PONPIS>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
POSITIVE AIRWAY PRESSURE; LIMITATION; CANNULA; APNEA; HYPOPNEAS;
Keywords:
full-night polysomnography; nasal airflow recording; nasal cannula; sleep apnea-hypopnea syndrome; sleep monitoring;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
20
Recensione:
Indirizzi per estratti:
Indirizzo: Montserrat, JM Hosp Clin Barcelona, Inst Clin Pneumol & Cirurgia Torac, Villarroel 170, E-08036 Barcelona, Spain Hosp Clin Barcelona Villarroel 170 Barcelona Spain E-08036
Citazione:
L. Hernandez et al., "Performance of nasal prongs in sleep studies - Spectrum of flow-related events", CHEST, 119(2), 2001, pp. 442-450

Abstract

Objectives: The use of nasal prongs connected to a pressure transducer is a noninvasive, sensitive method to detect respiratory events, and can be easily implemented in routine sleep studies. Moreover, its good time responseallows the detection of several flow-related phenomena of high interest, in addition to apnea and hypopnea. The aims of the study were to examine thequality and performance of the nasal prong flow signal, and to describe other flow-related events during full-night polyomnography studies. Methods: Twenty-seven subjects were studied (16 male subjects; mean +/- SDage, 49 +/- 14 years; mean body mass index, 21 +/- 4 kg/m(2)): 15 subjectsrecruited from the general population and 12 consecutive patients with suspected sleep apnea/hypopnea syndrome (SAHS). Results: A blind analysis of the respiratory events detected both by nasalprongs and thermistor was done. The quality of the nasal prong signal recordings was considered optimal for scoring purposes in 78% of cases, and no recording was considered uninterpretable. The nasal prong signal detected additional flow-related events not observed by the thermistor: (1) short andlong (> 2 min) periods of inspiratory flow limitation morphology without decrease in the amplitude of the signal; (2) periods of mouth expiration; and (3) snoring. The apnea/hypopnea index was significantly higher with the nasal prong scoring (18 vs 11 [p < 0.05] in the general population and 37 vs21 [p < 0.001] in the group with suspected SAHS). Conclusions: The incorporation of nasal prongs in routine full-night studies is an attainable technical option that provides adequate recordings in most cases. Additionally, relevant information not scored by thermistors is obtained on flow-related respiratory events, thus increasing diagnostic accuracy.

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Documento generato il 12/07/20 alle ore 09:40:49