Study On Quality Of Life And Influencing Factors In Patients After Coronary Stent Implantation

OBJECTIVE:1. To investigate the quality of life (QOL) in patients after coronarystent implantation, to analyze the factors associated with quality of life ofthese patients, and to explore effective nursing interventions to improve thelife quality.2. To translate the Coronary Revascularization Outcome Questionnaire(CROQ-PTCA-Post) into a Chinese version and test it's psychometricproperties. An effective assessment instrument for Chinese patients afterpercutaneous coronary intervention will be developed.METHODS:Questionnaires were sent to 125 patients after coronary stentimplantation. The survey instruments included Short Form 36 Health SurveyQuestionnaire, Social Support Questionnaire, and Questionnaire designedby the investigator. To analyze the quality of life and the influencing factorsin patients after coronary stenting according to the score of SF-36, thefeasibility, reliability, validity and responsibility were evaluated based onthe data with the Chinese Version of CROQ-PTCA-Post.RESULTS1. The score of eight domains, namely Physical Function (PF),Role-Physical (RP), Bodily Pain (BP), General Health (GH), Vitality(VT), Social Functioning (SF), Role-Emotional (RE), Mental Health (MH) and total scores of SF-36 in the sampled patients were 72.74±16.05,47.15±33.55,66.27±20.39,55.78±19.88,66.75±17.52,69.74±21.30,65.49±34.33,70.31±14.54 and 107±17.36 respectively.Compared with the same age and sex general population in Sichuan andrelated researches aboard, the scores of most domains in the patients werelower, especially in the RP domain; The total score of these patients is inthe middle level. Angina, physical exercise; sleep quality, age, economicstatus and social support were main influencing factors to affect thedifferent aspects of the life quality of patients after coronary stenting.2. The CROQ-PTCA-Post had good feasibility. The test-retest correlationreliabilities of CROQ-PTCA-Post for symptoms, physical functioning,psychological functioning, cognitive functioning, adverse effects andsatisfaction were 0.833～0.939. Cronbach's alpha coefficients of six domainswere 0.799～0.927. Index of Content Validity (CVI) was 0.87. Thecorrelation coefficient between single item and its domain was mostly over0.6. Measured with SF-36, moderate to high correlations were showedbetween similar domains of these two measures. The ability of theCROQ-PTCA-Post to differentiate known groups is supported by resultsfrom analyzing the scores of different sex and age groups.CONCLUSION:1. Overall, quality of life in patients after coronary stenting was notsatisfied in this research. The quality of life in these patients can be affectedby many factors. With an increasing number of coronary stentingprocedures performed each year, it is essential to take comprehensivemeasures, not only physiologic factor but also psychosocial factors shouldbe strengthened. Cardiac rehabilitation project which focused on theindividualized health education might be an effective approach to improve the quality of life of patients after coronary stenting.2. It is supported that Chinese version of CROQ-PTCA-Post has soundpsychometric properties as a disease-specific scale for patients aftercoronary stent implantation. It can be applied to assess quality of life forChinese people.