Ask an answerable question (PICO):
Will cardiopulmonary rehabilitation improve the activity endurance of heart failure patient?
PICO-P: patient of heart failure, I: cardiopulmonary rehabilitation, C: before intervention, O: improvement in the six minute waking distance
The Method and Analysis of Literature Review:
(1) Data bases: Cochrane library, Embase, PubMed, CEPS
(2) Key words: P(Heart failure), I(cardiopulmonary rehabilitation), O(6-minute walking test, walking test). Including Chinese and English literatures.
Critical Appraisal:
We searched literatures published before August 21, 2020. 17 literatures were found at first. Then we excluded repeating, non-randomized controlled neither systemic review, low level of evidence, and designation not meet with the PICO. Finally we included 2 literatures and appraised with CASP (2013 version).
Clinical Application of Evidence:
We designed a randomized controlled trial to assess the clinical application. We enrolled out-patient department and hospitalized patient in a medical center. Patient received low intensity exercise as intervention. Trial was conducted from August 1, 2020 to October 30, 2020.
Evaluation of Effectiveness:
A total of 20 patients were enrolled. Average age of years was 60 (44-82). 16 males. Average LV ejection fraction was 33% before and 47.23% after intervention. (P<0.05)The average six-minute-walking-distance was 326.8 meter before and 403.05 meter after intervention. There is significant improvement in walking distance and LVEF.
Conclusions and Recommendations:
We use evidence-based medicine to discuss whether cardiopulmonary rehabilitation improving activity endurance of heart failure patient. After systematic searching and assessing, there are 2 literature mentioned that cardiopulmonary rehabilitation will improve activity endurance and maximal oxygen intake of heart failure patient. Then we conducted a trial of 20 patients and revealed 76.25 meter of improvement in 6-minute-walking-distance(P<0.05). The result confirmed the cardiopulmonary rehabilitation will improve the activity endurance of heart failure patients.