Abstract
The objective is to determine whether the tidal volume of mechanically ventilated patients following surgery for cerebral hemorrhage can serve as a reliable reference value for predicting patient outcomes. METHODS: Patients who underwent surgery for cerebral hemorrhage and were admitted to the neurosurgical intensive care unit (NSICU) at Yijishan Hospital, Wannan Medical College, from April 2019 to June 2021 were prospectively included in this study. Each patient was continuously ventilated for 72 h using the Servo-i ventilator (Getinge Group, Gothenburg, Sweden). General data, including sex, age, APACHE II score, mean arterial pressure (MAP), and respiratory mechanics parameters such as tidal volume (VT), peak pressure (Peak), and positive end-expiratory pressure (PEEP), were collected. Ninety postoperative patients with cerebral hemorrhage who received neurologically assisted ventilation were included and divided into two groups based on their Glasgow Outcome Scale (GOS) scores: the good prognosis group (GOS ≥ 4) and the poor prognosis group (GOS ≤ 3). Their ventilatory parameters were monitored throughout the study. RESULTS: The age of patients with poor prognosis was higher than that of patients with good prognosis. Additionally, the APACHE II score for patients with poor prognosis was significantly elevated compared to those with good prognosis, with a p-value of less than 0.05, indicating statistical significance. However, there were no significant differences in minute volume (MV), mean airway pressure (Pmean), positive end-expiratory pressure (PEEP), peak pressure (Ppeak), and fraction of inspired oxygen (FiO2) between the two groups. Notably, the tidal volume of patients with poor prognosis was lower than that of patients with good prognosis, also with a p-value of less than 0.05, indicating statistical significance. Receiver operating characteristic (ROC) curve analysis of the aforementioned quantitative data revealed significant differences in APACHE II score, heart rate, and tidal volume between the good prognosis group and the poor prognosis group, all with a p-value of less than 0.05. Furthermore, logistic regression analysis of these indicators confirmed that the difference in tidal volume was statistically significant, with a p-value of less than 0.05. CONCLUSION: There is a significant correlation between self-triggered tidal volume in neuromodulation-assisted ventilation and the prognosis of patients following intracerebral hemorrhage. The tidal volume of patients who receive neurologically assisted ventilation after cerebral hemorrhage surgery can serve as a reference for predicting outcomes in intensive care.