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NCT07445035
This study aims to evaluate the effects of powered lower-limb exoskeleton-assisted training on lower limb strength, respiratory parameters, 28-day ventilator-free days, and length of hospital stay in patients with prolonged mechanical ventilation admitted to a Respiratory Care Center. The goal is to provide clinical evidence for integrating rehabilitation and respiratory care in this patient population.
NCT07177183
The main objective of the study is to determine whether a subnormal serum creatinine value upon admission to the Post-ICU Care Unit predicts the need for prolonged ventilatory support. A parallel objective of the study is to determine whether exogenous in-take of the dietary supplement creatine in patients with subnormal serum creatinine value is associated with a shortened duration of ventilatory support and improved patients outcome.
NCT03676998
The transition to unassisted breathing after invasive ventilation often proves challenging. Persistent ventilator dependence predisposes patients to nosocomial complications and death and increases the economic burden of critical illness. Ventilator-dependence results from an imbalance between the load and capacity of the respiratory muscle pump. Patients who fail a trial of spontaneous breathing commonly exhibit excess respiratory loads secondary to weaning-induced pulmonary edema, atelectasis or dynamic hyperinflation. At the same time, many ventilator-dependent patients exhibit striking loss of respiratory pump capacity due to diaphragm dysfunction which predisposes to prolonged ventilator dependence. Diaphragm dysfunction is common in ventilated patients. By prolonging ventilator dependence it may be an important contributor to the poor long-term clinical and functional outcomes of survivors of critical illness. While some main risk factors for diaphragm dysfunction have been already described (diaphragm disuse induced by mechanical ventilation, sepsis, initial severity upon admission), the determinants of recovery of diaphragm dysfunction are unknown, as well it has not been elucidated whether diaphragm function can simply improve after the acute phase of ICU admission. Therefore, the goal of this study is to investigate the time course evolution of diaphragm function in patients exposed to prolonged duration of mechanical ventilation (i.e. in a weaning center) and to determine which factors are associated with an improvement of the diaphragm function leading to a safe mechanical ventilation discontinuation.
NCT05500495
Background This study aimed to confirm that alterations in Doppler parameters of superior mesenteric artery(SMA) blood flow caused by intestinal hypoperfusion are associated with prolonged mechanical ventilation(PMV) in patients after cardiac valve surgery. Methods The patients' basic hemodynamics parameters, and the SMA blood flow parameters monitored by Doppler ultrasound were collected in the supine position at admission. The length of mechanical ventilation continued to be monitored. The SMA Doppler parameters were measured again when the patient was extubated. PMV was defined as MV≥96 hours.