The Effect of Oxygen Therapy on VPB in Patients with Chronic Obstructive Pulmonary Disease

만성 폐쇄성 폐질환 환자에서 심실 조기수축에 대한 산소치료의 효과

  • Shin, Kyu-Suck (Department of Internal Medicine, Korean Veterans Hospital) ;
  • Ko, Jeong-Seok (Department of Internal Medicine, Korean Veterans Hospital) ;
  • Kim, Seo-Jong (Department of Internal Medicine, Korean Veterans Hospital) ;
  • So, Kun-Ho (Department of Internal Medicine, Korean Veterans Hospital) ;
  • Jin, Gyo-Hyun (Department of Internal Medicine, Korean Veterans Hospital) ;
  • Lee, Keun (Department of Internal Medicine, Korean Veterans Hospital) ;
  • Lee, Gwi-Lae (Department of Internal Medicine, Korean Veterans Hospital) ;
  • Roh, Yong-Ho (Department of Internal Medicine, Korean Veterans Hospital)
  • Published : 1999.07.30

Abstract

Background: In patients with chronic obstructive pulmonary disease(COPD). it is well known that hypoxemia increases the frequency of VPB, which is associated with the poor prognosis such as sudden death. The aim of this study is to evaluate the effect of short and long-term low flow oxygen therapy on the development of VPBs in patients with COPD by correcting the hypoxemia. Method: In 19 patients with COPD, oxygen saturation and VPB's were monitored by pulse oxymeter and 24-hour Holter EKG, with room air and oxygen saturation and VPB's were monitored on the 1st and on the 8th day during oxygen therapy with nasal prong (2L/min). Results : The arterial oxygen saturation was significantly higher on the 1st day of oxygen therapy compared with breathing room air, and was also higher on the 8th day of oxygen therapy than on the 1st day. We found that there was significant correlation between the lowest value of the arterial oxygen saturation and the mean value of the arterial oxygen saturation. The number of VPB's per hour was significantly lower on the 1st day of oxygen therapy compared with breathing room air, and also lower on the 8th day of oxygen therapy than on the 1st day. Our results showed positive correlation between the decrease in the frequency of VPB's and the increase in the lowest arterial oxygen saturation, even though correlation was not significant(p=0.056). Conclusion: With oxygen therapy, the arterial oxygen saturation was increased and the number of VPB's was decreased. Long-term oxygen therapy more than 7days, would be helpful to decrease the number of VPB' s in patients with COPD.

연구배경: 만성 폐쇄성 폐질환 환자에서 수면중 발생하는 저산소 혈증은 심실 조기수축의 빈도를 증가시키고 이는 급사 및 나쁜 예후와 관련되어 있다. 이에 저자들은 만성 폐쇄성 폐질환 환자에서 저유량의 산소공급으로 저산소혈증을 교정하여 심실 조기수축의 빈도를 감소시킬 수 있는지 알아보고자 본 연구를 시행하였다. 방법: 만성 폐쇄성 폐질환자 18명을 대상으로 대기중에서와, 산소 2L/min을 비강을 통해 흡입하면서, 첫날과 7일 후에, 각각 24시간동안 pulse oxymeter와 Holter EKG로 측정하여 각 시간별로 동맥혈 산소포화도 심실 조기수축의 빈도를 측정 분석하여 다음과 같은 결과를 얻었다. 결과: 만성 폐쇄성 폐질환 환자에서 동맥혈 산소포화도는, 대기중에서 보다는 산소 2L/min을 흡입할 때, 흡입 첫날 보다는 흡입 7일 후에 더 높았으며, 주간보다는 야간에 더 감소하였다. 야간에 발생하는 산소포화도의 감소는 주간의 혈 산소포화도가 낮을수록 더 증가하였다. 심실 조기수축의 빈도는 대기중에서 보다 산소 2L/min를 흡입할 때, 유의하게 감소하였으며, 산소치료 첫날 보다는 일주일 후 더 감소하였다. 심실 조기수축의 빈도 감소량과 동맥혈 산소포화도의 최소치의 증가량의 휘귀분석에서 비교적 낮은 p(0.056) 값을 보여, 상관성을 시사하였다. 결론: 이상의 결과에서 만성 폐쇄성 폐질환 환자에서 산소치료는 동맥혈 산소포화도의 상승과 더불어 심실 조기수축을 감소시키며, 일주일 이상의 장기적인 산소치료가 부가적인 심실 조기수축 감소 효과를 가져다 줄것으로 사료된다.

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