TY - JOUR
T1 - What is the prevalence of inspiratory muscle weakness in preoperative cardiac surgery patients? An observational study
AU - D'Arx, Ashleigh
AU - Freene, Nicole
AU - Bowen, Sarah
AU - Bissaker, Peter
AU - McKay, Glenn
AU - Bissett, Bernie
PY - 2020/11/1
Y1 - 2020/11/1
N2 - Background: In patients undergoing elective cardiac surgery, the prevalence of inspiratory muscle weakness is not well-understood. This information could guide pre-operative therapy. Objectives: To determine the prevalence of inspiratory muscle weakness in preoperative cardiac surgery patients, and describe relationships between pre-operative factors (including maximal inspiratory pressure, MIP) and post-operative pulmonary complications (PPCs). Methods: Prospective study of elective cardiac surgery patients. Pre-operative MIP was measured (cmH2O) and PPC data were extracted from medical records (Melbourne Group Score) while age, height, weight, frailty and physical activity levels were captured via questionnaire. Backwards-stepwise logistic regression was used to describe associations. Results: 24 participants were recruited (79% male, age 70 ± 10.7, BMI 26.8 ± 4.14). The prevalence of inspiratory muscle weakness (MIP < 60% predicted) was 25% (n = 6). PPCs were associated with body mass index (BMI) (r = 0.464, p = 0.022). Conclusion: The prevalence of pre-operative inspiratory muscle weakness was 25%. BMI may be an important determinant of PPCs in elective cardiac surgery patients.
AB - Background: In patients undergoing elective cardiac surgery, the prevalence of inspiratory muscle weakness is not well-understood. This information could guide pre-operative therapy. Objectives: To determine the prevalence of inspiratory muscle weakness in preoperative cardiac surgery patients, and describe relationships between pre-operative factors (including maximal inspiratory pressure, MIP) and post-operative pulmonary complications (PPCs). Methods: Prospective study of elective cardiac surgery patients. Pre-operative MIP was measured (cmH2O) and PPC data were extracted from medical records (Melbourne Group Score) while age, height, weight, frailty and physical activity levels were captured via questionnaire. Backwards-stepwise logistic regression was used to describe associations. Results: 24 participants were recruited (79% male, age 70 ± 10.7, BMI 26.8 ± 4.14). The prevalence of inspiratory muscle weakness (MIP < 60% predicted) was 25% (n = 6). PPCs were associated with body mass index (BMI) (r = 0.464, p = 0.022). Conclusion: The prevalence of pre-operative inspiratory muscle weakness was 25%. BMI may be an important determinant of PPCs in elective cardiac surgery patients.
KW - Coronary artery bypass
KW - Exercise
KW - Physiotherapy (techniques)
KW - Respiratory muscles
UR - http://www.scopus.com/inward/record.url?scp=85088152474&partnerID=8YFLogxK
U2 - 10.1016/j.hrtlng.2020.06.012
DO - 10.1016/j.hrtlng.2020.06.012
M3 - Article
AN - SCOPUS:85088152474
VL - 49
SP - 909
EP - 914
JO - Heart and Lung: Journal of Acute and Critical Care
JF - Heart and Lung: Journal of Acute and Critical Care
SN - 0147-9563
IS - 6
ER -