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Comparison for the Optimal Pressure between Manual CPAP and APAP Titration with Obstructive Sleep Apnea Patients

한국인 폐쇄성 수면 무호흡 환자의 적정 양압을 위한 수동화 양압 측정법과 자동화 양압 측정법의 비교

  • Kim, Dae Jin (Department of Neurology, Pusan National University Yangsan Hospital) ;
  • Choi, Byoung Geol (Research Institute of Health Sciences, Graduate School, Korea University) ;
  • Cho, Jae Wook (Department of Neurology, Pusan National University Yangsan Hospital) ;
  • Mun, Sue Jean (Department of Otorhinolaryngology-Head & Neck Surgery, Pusan National University Yangsan Hospital) ;
  • Lee, Min Woo (Research Institute of Health Sciences, Graduate School, Korea University) ;
  • Kim, Hyun-Woo (Department of Neurology, Pusan National University Yangsan Hospital)
  • 김대진 (부산대학교 양산병원 신경과) ;
  • 최병걸 (고려대학교 보건과학연구소) ;
  • 조재욱 (부산대학교 양산병원 신경과) ;
  • 문수진 (부산대학교 양산병원 이비인후과) ;
  • 이민우 (고려대학교 보건과학연구소) ;
  • 김현우 (부산대학교 양산병원 신경과)
  • Received : 2019.03.28
  • Accepted : 2019.04.08
  • Published : 2019.06.30

Abstract

Although auto-adjusting positive airway pressure (APAP) titration at home has several advantages over a CPAP titration in terms of convenience and time saving, there are still concerns as to whether it will show corresponding accuracy when compared to laboratory-based polysomnography (PSG) and CPAP titration. To obtain more evidence supporting home-based auto-titration, APAP titration was performed at home for patients who were presented with OSA on laboratory-based diagnostic PSG followed by CPAP titration. A total of 79 patients were included in the study. They all underwent split-night PSG with CPAP titration, and APAP titration for more than 7 days. The patients with successful titration at both situations were selected. The optimal pressure and apnea-hypopnea index (AHI) of CPAP and APAP titration were compared. The optimal pressure for CPAP and APAP titration were $7.0{\pm}1.8cmH_2O$ and $7.6{\pm}1.6cmH_2O$ (P<0.001), whereas the corresponding AHI were $1.3{\pm}1.5/h$ and $3.0{\pm}1.7/h$ (P<0.001). As a result, the achievement rates of optimal pressure for CPAP and APAP titration were 96.2% and 94.9% (r=-0.045, P=0.688), respectively. The results of this study did not differ with regard to the optimal pressure between CPAP and APAP titration. Overall, CPAP and APAP titrations should be chosen depending on a required situation.

폐쇄성 수면 무호흡 환자들의 양압기 사용을 위한 적정 양압측정은 편리함과 경제성뿐만 아니라 다양한 원인으로 CPAP 측정법보다는 APAP 측정법을 더 선호한다. 그러나 PSG 감시하에 진행하는 CPAP 측정법보다 정확성에 대한 의문이 아직까지 남아있다. 이에 본 연구에서는 동일한 대상자에 대한 CPAP과 APAP 측정법의 적정 압력과 무호흡-저호흡 지수를 변수로서 두 방법간의 효율성과 정확성을 비교하였다. 대상자는 분할 수면다원검사 중 CPAP 양압 측정과 7일 이상 APAP 양압 측정에 성공한 79명이 모집되었다. CPAP과 APAP 측정법의 적정 양압은 $7.0{\pm}1.8cmH_2O$, $7.6{\pm}1.6cmH_2O$ 무호흡-저호흡 지수는 $1.3{\pm}1.5/h$, $3.0{\pm}1.7/h$로 CPAP 측정법이 두 변수 모두 통계적으로 유의하게 낮게 나타났다(P<0.001). 그러나 미국수면학회 가이드라인 무호흡-저호흡 지수 5/h이하의 적정 양압 도달 비율은 CPAP 측정법이 96.2% (76명), APAP 측정법이 94.9% (75명)으로 유의미한 차이를 보이지 않았다(r=-0.045, P=0.688). 본 연구를 요약하면, CPAP은 APAP 측정법보다 좀 더 효율적인 측정법으로 나타났다. 그렇지만 적정 양압에 도달하는 비율은 두 방법 모두 통계적 차이를 나타내지 않아 정확성을 가진다. 따라서 CPAP과 APAP 측정법 중 요구되는 상황에 따라 적절한 방법을 선택하여 적정 양압을 측정할 수 있겠다.

Keywords

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