Research in quality of life of patients with different smoking status six months after percutaneous coronary intervention

Abstract

Objective To study heath-related quality of life in patients undergoing successful percutaneous coronary intervention(PCI)six months after operation.Methods 172 hospitalized patients who met the inclusion criteria were selected from July 2009 to May 2010.They were divided into the neversmoking group,ever-smoking group and the current-smoking group.The Seattle Angina Questionnaire (SAQ) and the Short Form-36 (SF-36)were used to assess the quality of life at baseline and 6 months after intervention.The comparison between groups and self-control comparison within groups were carried out according to each dimension of the questionnaire.Results SF-36 and SAQ score showed no significant difference 24h before the operation and 6 months after the operation between three groups.Patients who had never smoked and who were current smokers acquired higher scores in many dimensions of the questionnaire compared with those before operation,while patients who were former smokers reported reverse resuits.Conclusions There is no sufficient evidence proving that smoking status influences quality of life of patients after PCI,that is to say,it can not be considered that quality of life of smoking patients is lower than that of ever-smoking patients or never-smoking patients,since in this research,quality of life of eversmoking patients decreased after PCI. Key words: Coronary heart disease; Percutaneous coronary intervention; Smoking; Follow-up; Quality of life