Symptom-limited Stair Climbing Test in Heart Failure

KTO Karatay University31 enrolled

Overview

Aims: To assess the efficacy of symptom-limited stair-climbing test (SLSCT), in determining the exercise capacities of patients with chronic heart failure (CHF) in comparison with cardiopulmonary exercise test (CPET) and 6-minute walk test(6MWT) and to interpret the results according to the clinical status of the patients. Methods: Thirty-one patients, aged 50-75 years, with stage II-III CHF according to the New York Heart Association Classification and left ventricular ejection fraction (LVEF) of ≤45% were included. The demographic and clinical characteristics of the patients were recorded. Exercise capacity was assessed by SLSCT, 6MWT, and CPET. The duration of patients' performance in the test, reasons for ending the test and predicted maximal oxygen consumption (VO2max) were recorded. Heart rate (HR), blood pressure (BP), dyspnoea severity \[Modified Borg Scale (MBS)\] and peripheral oxygen saturation were recorded. Pulmonary functions were assessed by spirometry.

Study Type

OBSERVATIONAL

Enrollment

Conditions

Chronic Heart Failure

Interventions

Exercise TestOTHER

Tests were conducted to evaluate exercise capacity.

Eligibility

Sex: ALLMin age: 50 YearsMax age: 75 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: * 50-75 years of age * NYHA stage II-III * LVEF of 45% or less * Independently walking and climbing stairs * Volunteer to participate in research Exclusion Criteria: * Any acute or chronic condition that would limit exercise capacity other than CHF * Insufficient mental status to perform tests and surveys * Orthopaedic problem limiting exercise test in lower extremity * Severe obesity or there is a secondary cause for obesity * Uncontrolled cardiac arrhythmia * Unstable angina

Outcomes

Primary Outcomes

Symptom-Limited Stair-Climbing Test(SLSCT)

predicted VO2 max (ml/kg/min)

Time frame: baseline

Six-Minute Walk Test(6MWT)

predicted VO2 max (ml/kg/min)

Time frame: baseline

Cardiopulmonary Exercise Test(CPET)

predicted VO2 max (ml/kg/min)

Time frame: baseline

Secondary Outcomes

Heart Rate

Heart Rate beats/min

Time frame: immediately after the procedure

Left Ventricular Ejection Fraction

Ecocardiography

Time frame: baseline

Blood Pressure

Systolic and diastolic blood pressure (mmHg)

Time frame: immediately after the procedure