Description Module
The Description Module contains narrative descriptions of the clinical trial, including a brief summary and detailed description. These descriptions provide important information about the study's purpose, methodology, and key details in language accessible to both researchers and the general public.
Description Module path is as follows:
Study -> Protocol Section -> Description Module
Description Module
Ignite Creation Date:
2025-12-25 @ 3:02 AM
Ignite Modification Date:
2025-12-25 @ 3:02 AM
NCT ID:
NCT03398733
Brief Summary:
The prevalence of OSA (Obstructive sleep apneaļ¼OSA) is 2%-4% in general population and 16%-47% in surgical-heart failure patients. Our previous study found that OSA was associated with the increasing incidence of perioperative adverse events.The continuous positive airway pressure (CPAP), as the standard treatment for OSA, is extensively applied clinically. The previous study reported that postoperative AHI was reduced and SPO2 was increased by CPAP treatment. However, whether CPAP treatment can improve OSA postoperative and related adverse events or not in patients with rheumatic valvular heart diseases (RVHD) were not reported.The purpose of this study is to observe the effective of preoperative CPAP on postoperative sleep parameters and adverse events, such as AHI changes, duration of ICU stay and duration of mechanical ventilation.
Detailed Description:
Between December 1, 2017 and June 30 2019, 200 patients with chronic heart failure caused by rheumatic valvular heart disease waiting for heart valve replacement in Department of Cardiovascular Surgery were screened for obstructive sleep apnea (OSA) by full-night polysomnography (PSG). Of them, 30 OSA patients were enrolled and randomly received CPAP treatment and non-CPAP treatment (15:15).
The CPAP treatment group received both baseline and CPAP treatment. The full-night CPAP treatment was conducted from 21:00 pm to 6:00 am for 7 days preoperatively. The non-CPAP treatment group received baseline treatment.
Preoperative Sleep parameters (AHI, mean and lowest SPO2) and clinical evaluations including NYHA class, electrocardiographic, echocardiographic, arterial blood gas analysis findings, baseline medication, and 6-minute walk test were recorded.
Operation related parameters such as duration of operation, duration of cardiopulmonary bypass and bleeding volume were recorded.
Postoperative adverse events such as duration of ICU stay, postoperative duration of mechanical ventilation, pacemaker use, complicated infection and reintubation are recorded.
A PSG was re-examined before discharge from hospital. The changes of AHI, mean and lowest SPO2 between pre- and post-operative PSG parameters were calculated.
The operation related parameters, postoperative adverse events and the changes of sleep parameters were compared between CPAP and non-CPAP patients.
Study:
NCT03398733
Study Brief:
Protocol Section:
NCT03398733