Linked Life Data

9623691

Source:http://linkedlifedata.com/resource/pubmed/id/9623691

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1998-7-27
pubmed:abstractText
Conventional systems to monitor oronasal flow in sleep studies have traditionally relied on a thermistor signal. Our study was designed to verify whether nasal prongs (NP) connected to a pressure transducer could improve respiratory events detection in patients with sleep apnoea/hypopnoea syndrome (SAHS) compared to traditional systems. Sleep episodes from a 2 h conventional polysomnographic record plus NP signal obtained at random from eight patients (age: mean(+/-SD) 53(+/-12) yrs; body mass index (BMI): 29(+/-6) kg x m(-2); apnoea/hypopnoea index (AHI): 27(+/-20) events x h(-1)) were identified and used for analysis. An abnormal change in the pattern of any of the respiratory or neurological variables occurring during the observation period was defined as an episode. Each episode was registered and scored with concomitant scoring of the remaining variables. According to the episode definition three different profiles were established: 1) periods of reduction of ventilation in either variable without an arousal or cyclical desaturation, named nonpathological episode (NPE); 2) an idiopathic or nonrespiratory arousal (IA); and 3) a true respiratory event (TRE) defined as reduction or absence of flow demonstrated by either thermistor, thoraco-abdominal bands or NP accompanied by cyclical desaturation and/or arousal. For each TRE, its detection by thermistor, thoraco-abdominal bands or NP was established. A total of 877 sleep episodes were observed (42 NPE, 30 IA and 805 TRE). When compared to single or combined thermistor and bands approach, NP had the highest respiratory events detection rate, 779 (96.8%) versus 673 events (83.6%), respectively. Detection of respiratory-related arousals was also improved by NP and only 3% could account for mouth breathing respiration. It is concluded that nasal prongs improve the detection of respiratory events in patients with sleep respiratory disorders.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0903-1936
pubmed:author
pubmed:issnType
Print
pubmed:volume
11
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
880-3
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1998
pubmed:articleTitle
Nasal prongs in the detection of sleep-related disordered breathing in the sleep apnoea/hypopnoea syndrome.
pubmed:affiliation
Departament de Medicina, Hospital Clínic, Universitat de Barcelona, Spain.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't