Study on Influencing Factors and Intervention of Silent Aspiration After Heart Valve Operation in Elderly Patients
Study on Influencing Factors and Intervention of Silent Aspiration After Heart Valve Operation in Elderly Patients
Objective To investigate the safety and effectiveness of interference electrical stimulation in the prevention of silent aspiration after heart valve surgery in elderly patients. Silent aspiration was diagnosed when either pepsin level >200 ng/ml or α-amylase level >1685 U/L was detected in airway secretions.
In this study, a randomized controlled trial was conducted in elderly patients undergoing heart valve surgery at Fujian Medical University Union Hospital. Patients were selected according to the inclusion and exclusion criteria and randomly allocated to either the experimental group (routine nursing + interference electrical stimulation) or the control group (routine nursing + blank stimulation). Silent aspiration was diagnosed when either pepsin level >200 ng/ml or α-amylase level >1685 U/L was detected in airway secretions. Airway secretions were collected upon ICU admission after surgery, every 12 hours thereafter (depending on endotracheal tube indwelling time), before extubation, 24 hours after extubation, and on day 6 after surgery. The incidence of silent aspiration, swallowing function, clinical pulmonary infection score, mechanical ventilation duration, ICU length of stay, total hospital stay, and adverse events were compared between the two groups.
Inclusion Criteria:
Exclusion Criteria: