Ventilator deconditioning methods include direct shutdown, T-tube withdrawal, SIMV method, PSV method and so on.
1. Direct shutdown: refers to the whole process of ventilator withdrawal without the use of other instruments and assisted withdrawal method, especially for mechanical ventilation is not more than 24 hours of patients is very simple to complete the early extubation and withdrawal of the ventilator.
2. T-tube extubation: refers to the extubation of tracheotomized or intubated patients who breathe warmed and humidified gases through a T-shaped plastic tube to stabilize spontaneous respiration. Compared with SIMV and PSV method, this method is completely autonomous respiration, and cardiopulmonary dysfunction is not easy to occur after withdrawal.
3. SIMV method: this is one of the most classic withdrawal methods, the method is mainly to gradually increase the number of autonomous breathing and reduce the number of ventilation. Autonomous assisted patients’ autonomous breathing and ventilation alternate with each other, which is conducive to the gradual completion of the withdrawal of the machine.
4. PSV method: This method is an autonomous ventilation mode, which improves patient compliance, makes the patient more comfortable, and has a high success rate of withdrawal because it supports the pressure to counteract the increased work of breathing in the line and supplements the lack of autonomous breathing.
The exact choice of method will also depend on the patient’s physical condition.