Yonsei Med J.  2019 Jun;60(6):547-553. 10.3349/ymj.2019.60.6.547.

Characteristics and Safety of Cardiopulmonary Exercise Testing in Elderly Patients with Cardiovascular Diseases in Korea

Affiliations
  • 1Cardiology Division, Kosin University Gospel Hospital, Kosin University College of Medicine, Busan, Korea.
  • 2Cardiology Division, Severance Cardiovascular Hospital, Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, Korea. SMKANG@yuhs.ac

Abstract

PURPOSE
Clinical use of cardiopulmonary exercise tests (CPETs) is increasing in elderly patients with cardiovascular (CV) diseases. However, data on Korean populations are limited. In this study, we aimed to examine the characteristics and safety of CPET in an elderly Korean population with CV disease.
MATERIALS AND METHODS
We retrospectively analyzed records of 1485 patients (older than 65 years in age, with various underlying CV diseases) who underwent CPET. All CPET was performed using the modified Bruce ramp protocol.
RESULTS
The mean age of patients was 71.6±4.7 years with 63.9% being men, 567 patients aged 60-65 years, 818 patients aged 70-79 years, and 100 patients aged 80-89 years. The mean respiratory exchange ratio was 1.09±0.14. During CPET, three adverse cardiovascular events occurred (total 0.20%), all ventricular tachycardia. All subjects showed an average exercise capacity of 21.3±5.5 mL/kg/min at peak VO2 and 6.1±1.6 metabolic equivalents of task, and men showed better exercise capacity than women on most CEPT parameters. A significant difference was seen in peak oxygen uptake according to age group (65-69 years, 22.9±5.8; 70-79 years, 20.7±5.1; 80-89 years, 17.0±4.5 mL/kg/min, p<0.001). The most common causes for CPET termination were dyspnea (64.8%) and leg pain (24.3%), with higher incidence of leg pain in octogenarians compared to other age groups (65-69 years, 22.4%; 70-79 years, 24.6%; 80-89 years, 32.0%, p<0.001).
CONCLUSION
CPET was relatively a safe and useful modality to assess exercise capacity, even in an elderly Korean population with underlying CV diseases.

Keyword

Cardiopulmonary exercise test; cardiovascular diseases; elderly patients

MeSH Terms

Aged*
Aged, 80 and over
Architectural Accessibility
Cardiovascular Diseases*
Dyspnea
Exercise Test*
Female
Humans
Incidence
Korea*
Leg
Male
Metabolic Equivalent
Oxygen
Retrospective Studies
Tachycardia, Ventricular
Oxygen

Figure

  • Fig. 1 Flow diagram of study population. CPET, cardiopulmonary exercise test; CV, cardiovascular.

  • Fig. 2 Comparison of METs according to age group. Male (A) and female (B) patients. METs, metabolic equivalents of task.

  • Fig. 3 Reasons for CPET termination in overall population (A) and prevalence of dyspnea and leg pain for CPET termination according to age group (B). CPET, cardiopulmonary exercise test.


Cited by  1 articles

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Daehyun Jeong, Yeon-Mok Oh, Sei Won Lee, Sang-Do Lee, Jae Seung Lee
J Korean Med Sci. 2022;37(14):e113.    doi: 10.3346/jkms.2022.37.e113.


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