Why the study?
Does CABG improve symptoms of chest pain and dyspnea up to 5 years post-surgery, and what factors predict recurrent chest pain?
Does CABG improve symptoms of chest pain and dyspnea up to 5 years post-surgery, and what factors predict recurrent chest pain?
CABG provides marked and sustained relief of chest pain and dyspnea up to 5 years, though patients with obesity or concomitant valvular heart disease are at higher risk for recurrent chest pain.
May support sustained symptom relief after CABG; leaves open randomized validation of obesity and valvular predictors.
Patients in western Sweden who underwent CABG from 1988 to 1991 received prior to coronary angiography and 2 and 5 years after CABG a questionnaire, in which they were asked about symptoms of chest pain and dyspnea. In all, 1,226 patients answered the inquiry prior to CABG, 1,531 patients 2 years and 1,359 patients 5 years after surgery. Both in terms of chest pain and dyspnea there was a marked improvement 2 and 5 years after CABG as compared with prior to surgery. However, between 2 and 5 years after surgery there was a minor deterioration, both regarding chest pain and dyspnea. The most statistically significant preoperative predictors for the occurrence of chest pain more than twice a week 5 years after surgery were concomitant valvular heart disease and obesity.
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Herlitz et al. (1999) studied this question.
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