Functional tests in patients with ischemic heart disease

Abstract

Lately, easier and shorter tests have been used in the functional evaluation of cardiac patients. Among these, walking speed (WS) and Timed Up and Go (TUG) tests are associated with all-cause mortality, mainly cardiovascular and the rate of re-hospitalization, especially in the elderly population. We prospectively analyzed a group of 38 patients admitted to the Cardiology Clinic from Elias Hospital, Romania, with chronic coronary syndrome (CCS) (n=22) and STEMI (n=16). We assessed the patients immediately after admission and before discharge with G-WALK between the 1^st and 30^th of September 2019. Our study group had a mean age of 62.7±12.1 years. Patients with a low WS were older (69.90±12.84 vs. 59.90±10.32 years, p=0.02) and had a lower serum hemoglobin (12.38±1.20 vs. 13.72±2.07 g/dl, p=0.02). The WS significantly improved during hospitalization (p=0.03) after optimal treatment. The TUG test performed at the time of admission had a longer duration in patients with heart failure (14.05 vs. 10.80 sec, p=0.02) and was influenced by patients' age (r=0.567, p=0.02), serum creatinine (r=0.409, p=0.03) and dilation of right heart chambers (r=0.399, p=0.03). WS and TUG tests can be used in patients with CCS and STEMI, and are mainly influenced by age, thus having a greater value among the elderly.

Keywords: 6MWT – 6-minute walk test; CCS – chronic coronary syndrome; CKD – chronic kidney disease; COPD – chronic obstructive pulmonary disease; CPET – cardiopulmonary exercise testing; HF – heart failure; IHD – ischemic heart disease; IMT – intima-media thickness; MDRD – Modification of Diet in Renal Disease; STEMI – ST elevation myocardial infarction; TUG – Timed Up and Go; Timed Up and Go test; WS – walking speed; functional capacity; functional walk tests; ischemic heart disease; walking speed.