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Abstract: Poster Presentations |

EFFECT OF TREATMENT BY UVULOPALATOPHARYNGOPLASTY ON CARDIOPULMONARY EXERCISE TEST IN OBSTRUCTIVE SLEEP APNEA SYNDROME FREE TO VIEW

Ching C. Lin, MD*
Author and Funding Information

Chest Division, Mackay Memorial Hospital, Taipei, Taiwan ROC


Chest


Chest. 2005;128(4_MeetingAbstracts):234S. doi:10.1378/chest.128.4_MeetingAbstracts.234S
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Abstract

PURPOSE:  To evaluate the effects of successful uvulopalatopharyngoplasty (UPPP) on cardiopulmonary exercise testing (CPET) in patients with obstructive sleep apnea syndrome (OSAS).

METHODS:  25 subjects with moderately severe or severe OSAS who desired UPPP were enrolled. All patients had an overnight sleep study and CPET before and 3 months after LAUP. Patients were divided into 2 groups based on the success (group I) or failure (group II) of UPPP to improve their sleep apnea.

RESULTS:  The results showed that successful UPPP in group I was followed by improvement in right ventricular ejection fraction, maximal work rate (WRmax), VO2max/kg, anaerobic threshold, oxygen pulse and a lower breathing reserve. CPET results were unchanged after UPPP in group II subjects.

CONCLUSION:  Patients with OSAS before UPPP had abnormal CPET as reflected by low VO2peak/kg, WRmax, anaerobic threshold and oxygen pulse. All of these variables improved after UPPP that successfully ameliorated OSAS.

CLINICAL IMPLICATIONS:  Patients with OSAS before UPPP had abnormal CPET. CPET improved after UPPP that successfully ameliorated OSAS.

DISCLOSURE:  Ching Lin, None.

Wednesday, November 2, 2005

12:30 PM - 2:00 PM


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