Postoperative hemorrhages (POHs) after pituitary adenoma surgery can have devastating consequences for patients. Many patients take acetylsalicylic acid (ASA) for the primary or secondary prevention of cardiovascular or stroke events. However, the impact of continued low-dose ASA use on the risk of postoperative hemorrhage and the frequency of thromboembolic events after discontinuing ASA in these patients remain poorly understood. This study aims to investigate the potential interaction and correlation between low-dose ASA intake and two of the most common complications after neurosurgical surgery-acute postoperative hemorrhage and thromboembolism. A retrospective study involving 1862 patients who underwent brain tumor surgery over a decade at our neurosurgical institute examined the risk of postoperative hemorrhage and thromboembolic events. The study compared bleeding rates in patients with pituitary adenomas who received low-dose ASA medication to those who did not. Additionally, the study investigated the occurrence of venous thromboembolism (VTE) or arterial pulmonary embolisms (PEs) following surgery, as well as the impact of laboratory parameters, demographic characteristics and intraoperative factors. A total of 108 patients underwent surgery for primary pituitary tumors between January 2008 and January 2018. Only six patients (5.6%) experienced POH. Among those with POH, just two (1.9%) required revision surgery due to neurological decline. Interestingly, none of the 13 patients (12%) taking ASA preoperatively suffered POH. No correlation was found between laboratory results, demographics and postoperative complications. The study also did not find an increase in VTE or PE events. In this analysis, the perioperative intake of low-dose ASA could not be associated with an increased rate of hemorrhagic complications following pituitary adenoma surgery. Low-dose ASA can be safely continued during brain tumor surgery in patients with a high cardiovascular and cerebrovascular risk.

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http://dx.doi.org/10.3390/jcm13237020DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11642533PMC

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