FEF25-75/FVC measurements and extrathoracic airway obstruction in obstructive sleep apnea patients
Küçük Resim Yok
Tarih
2005
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The aims of this study were to evaluate patients with obstructive sleep apnea syndrome (OSAS) with regards to dysanapsis (airway size relative to lung size) and to demonstrate the differences between the patients with and without extrathoracic airway obstruction. The study population consisted of 15 patients with OSAS and 14 age and body mass index (BMI) matched control subjects. OSAS patients and control subjects showed similar characteristics in FEV1, FEV1/FVC, FEF25-75, and FEF25-75/FVC ratios. Expiration reserve volume was significantly higher in the control group than in OSAS patients (p<0.01). Six patients exhibited extrathoracic airway obstruction while awake. Of these, three had also a sawtooth pattern in their flow-volume curves. The remaining nine patients had no extrathoracic airway obstruction and had lower apnea-hypopnea indexes (AHI) than the obstruction group (p<0.05). OSAS patients and age- and BMI-matched healthy controls had similar characteristics in terms of dysanapsis. In addition, there was no relation between the FEF25-75/FVC ratio and AHI, MinO2, and MeanO2. Extrathoracic airway obstruction may be a feature of only severe OSAS patients. © Springer-Verlag 2005.
Açıklama
Anahtar Kelimeler
Dysanapsis; Extrathoracic Flow Limitation; Respiratory Function Tests; Sleep Apnea, Adult; Airway Obstruction; Article; Body Mass; Clinical Article; Controlled Study; Disease Severity; Electroencephalogram; Expiratory Reserve Volume; Female; Forced Expiratory Volume; Human; Lung Flow Volume Curve; Lung Function Test; Male; Polysomnography; Priority Journal; Sleep Apnea Syndrome; Sleep Stage; Spirometry; Vital Capacity; Airway Obstruction; Expiratory Reserve Volume; Forced Expiratory Flow; Forced Expiratory Volume; Hospitalization; Middle Aged; Physiology; Sleep Apnea Syndrome; Adult; Airway Obstruction; Body Mass Index; Expiratory Reserve Volume; Female; Forced Expiratory Flow Rates; Forced Expiratory Volume; Humans; Male; Middle Aged; Polysomnography; Severity Of Illness Index; Sleep Apnea, Obstructive
Kaynak
Sleep and Breathing
WoS Q Değeri
Scopus Q Değeri
Q1
Cilt
9
Sayı
1
