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KMID : 1148720210090010039

2021 Volume.9 No. 1 p.39 ~ p.45
Prognostic usefulness of Dyspnea for Cardiopulmonary Exercise Test Termination Reason in Cardiovascular Disease Patients
Kim Se-Youn

Yoon Jung-Ho
Hong Su-In
Ko Eun-Hee
Abstract
Purpose : Exercise capacity has clinical significance in patients with cardiovascular disease (CVD). Cardiopulmonary exercise testing (CPET) can determine maximum oxygen consumption, end-tidal carbon dioxide partial pressure, and minute ventilation/carbon dioxide production slope. In addition, CPET can confirm the cause of dyspnea. Therefore, in this study, we investigated the prognostic significance of the reasons for CPET termination due to dyspnea in patients with CVD.

Methods: We conducted a retrospective study by analyzing the results of 243 patients (161 men and 82 women) diagnosed with CVD. We performed one-way analysis of variance to determine the mean difference between groups. For categorical data, chi-square test was performed to examine the differences between the groups. In addition, Kaplan?Meier analysis was used to investigate factors influencing the length of readmission. We considered the results to be significant at p < .05, and SPSSWIN 25.0 program was used for statistical analysis of data.

Results : Differences existed between patient characteristics and reasons for CPET termination. However, significant differences were not found in all variables, including age, body mass index, skeletal muscle mass, and body fat percentage (p < 0.5). The reason for termination according to patients¡¯ exercise level was significantly different (p < 0.5). The trend of readmission due to CP ET termination was not statistically significant (=.014, df = 1, p > .05).

Conclusion : Dyspnea did not show a significant difference in patient characteristics, but reasons for CPET termination and level of exercise capacity were significant. We did not determine whether a high correlation with dyspnea exists, and the difference between reasons for CPET termination and trend of readmission was not significant.
KEYWORD
Terminated reason, Cardiopulmonary exercsie test, Dyspnea, Prognostic usefulness
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