Ensuring safety of exercise training through non-invasive measurement of cardiac function: A pilot study in adults.

Thoracic fluid content (TFC) measured by the AESCULON mini correlated significantly with brain natriuretic peptide (BNP) levels both before and after exercise.

• TFC before exercise correlated with BNP: r = 0.767, p = 0.006
• TFC after exercise correlated with BNP: r = 0.711, p = 0.014
• Study included 11 patients (6 myocardial infarction, 3 angina pectoris, 2 dilated cardiomyopathy) undergoing outpatient cardiac rehabilitation
• CPET and BNP were assessed within 2 weeks of hemodynamic measurements

Changes in stroke volume and cardiac output during exercise correlated with measures of exercise capacity from CPET.

• Changes in stroke volume and cardiac output correlated with peak VO2, percent predicted peak VO2, and ΔVO2/ΔWR
• Hemodynamics were measured before and after 20 minutes of aerobic exercise at the anaerobic threshold
• Measurements were performed using the AESCULON mini non-invasive hemodynamic monitoring device

Patients with increased cardiac output during exercise had higher peak VO2 and ΔVO2/ΔWR compared to those without increased cardiac output.

• Patients were stratified based on whether cardiac output increased during the exercise session
• Those with increased cardiac output demonstrated higher peak VO2 and higher ΔVO2/ΔWR
• The study population consisted of 11 patients undergoing outpatient cardiac rehabilitation at the University of Tokyo Hospital

Stroke volume, cardiac output, and cardiac index tended to increase while thoracic fluid content decreased following aerobic exercise at the anaerobic threshold.

• Hemodynamic measurements were taken before and after 20 minutes of aerobic exercise at the anaerobic threshold intensity
• TFC decreased post-exercise, suggesting fluid redistribution during exercise
• Stroke volume, cardiac output, and cardiac index showed a tendency to increase post-exercise, though described as trends rather than statistically confirmed significant changes

The AESCULON mini was investigated as a non-invasive alternative to frequent cardiopulmonary exercise testing (CPET) for monitoring cardiac function during cardiac rehabilitation.

• Frequent CPET was characterized as impractical in the context of cardiac rehabilitation
• The AESCULON mini enables non-invasive hemodynamic monitoring but its role in CR was previously unclear
• This was described as a pilot study with 11 patients
• The study examined whether the device could detect heart failure progression and estimate exercise capacity