Development of exercise-related values in heart failure patients supported with a left ventricular assist device.
Int J Artif Organs
; 42(4): 201-206, 2019 Apr.
Article
in En
| MEDLINE
| ID: mdl-30520328
ABSTRACT
Following implantation of a left ventricular assist device, the build-up and long-term maintenance of adequate exercise capacity and functional performance become crucial. The aim of this study was to observe the development of exercise-related values at different times, as well as to detect possible influencing factors. We performed a prospective single-centre study 10 patients (63 years, 100% male, body mass index = 27.5, 100% HeartWare) underwent the following diagnostic tests during cardiac rehabilitation and during two subsequent ambulatory visits 6-min walking test, handgrip strength test, cardiopulmonary exercise test and Minnesota Living with Heart Failure questionnaire. Mean follow-up was 482 days after left ventricular assist device implantation. Significant improvements could be observed between the end of cardiac rehabilitation and ambulatory visit 1; 6-min walking distance increased from 367 to 449 m (p < 0.01), peak VO2 from 10.0 to 11.9 mL/kg/min (p < 0.05) and peak load from 62.4 to 83.0 W (p < 0.01). However, there were no further improvements between ambulatory visit 1 and ambulatory visit 2. In the long term, a significant mean weight gain of more than 10 kg could be observed (p < 0.01). A negative linear correlation between weight gain and absolute improvement in peak load (r = -0.77, p < 0.01) and peak VO2 (r = -0.75, p < 0.05) could be demonstrated. In conclusion, exercise-related values following left ventricular assist device implantation initially improve significantly. Later, however, no further improvements can be observed. In the long term, pronounced weight gain is conspicuous, concomitant with a significantly lower increase in exercise values of the patients. In the future, both dietary and structured physical activity follow-up interventions should be integrated in patient routines.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Quality of Life
/
Exercise Tolerance
/
Overweight
/
Heart Failure
Type of study:
Diagnostic_studies
/
Etiology_studies
/
Observational_studies
/
Qualitative_research
Aspects:
Patient_preference
Limits:
Humans
/
Male
/
Middle aged
Language:
En
Journal:
Int J Artif Organs
Year:
2019
Document type:
Article
Affiliation country:
Germany