Evaluation of anesthesia management in cases undergoing intracranial mass operation in semi-sitting position

In our study, we retrospectively evaluated seventy four intracranial mass cases in the semi-sitting position, including age, ASA class, lesion type, stay in intensive care and hospital, presence of patent foramen ovale (PFO), fluid replacements, End-tidal carbon dioxide (EtCO2) and partial pressure of carbon dioxide (pCO2) changes, We screened for venous air embolism (VAE) and other perioperative complications. Our aim is to create a comprehensive review of the demographics of semi-sitting craniotomy cases in our center, factors affecting the duration of post-operative hospital stay, and venous air embolism and other complications associated with the sitting position, and to compare our results with other studies in the literature. After obtaining the necessary permissions, we obtained this data from patient admission notes, anesthesia reports and records in the hospital system. Compared to similar studies in the literature; Data regarding the effect of ASA score on the duration of hospital stay, the effect of ASA score on the duration of intensive care unit stay, the fact that ASA score is not a risk factor for the incidence of VAE, the presence of PFO cannot be associated with PHE, the association of prolonged surgery with delayed discharge, the frequency of hypotension and fluid replacements are consistent with other studies. It has been emphasized that the reason why the frequency of VHE is low and the clinical picture of the identified VAE patients is more serious compared to other studies may be related to cases that cannot be diagnosed due to the use of EtCO2 alone in the diagnosis of venous air embolism. Although the results of our study show that patients who did not develop complications in our clinic were discharged quickly; It shows that the need to monitor patients who develop VAE in intensive care is higher than similar studies. This reveals the need to use more sensitive methods in monitoring and diagnosis.