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      Venous complications following petrosal vein sectioning in surgery of petrous apex meningiomas.

      European Journal of Surgical Oncology
      Cerebrovascular Disorders, etiology, Cranial Sinuses, surgery, Female, Humans, Male, Meningeal Neoplasms, Meningioma, Middle Aged, Neurosurgical Procedures, adverse effects, Petrous Bone, Venous Insufficiency

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          Meningiomas involving the petrous apex regularly show a close relationship with the superior petrosal vein which is sometimes obliterated during surgery due to its proximity to the tumour. However, there is no study available so far focusing on the frequency of postoperative venous congestion related complications following petrosal vein obliteration as well as on pre- and intraoperative findings related to them. Fifty-nine patients with meningiomas involving the petrous apex were analyzed concerning the intraoperative preservation or sacrifice of the petrosal vein and postoperative complications related to venous occlusion. When a petrosal vein was occluded, in 9 of 30 cases venous-related complications occurred with a minor venous-congestion phenomenon in seven cases and major complications in two cases. When the petrosal vein complex was preserved, there were no similar complications. Preservation of the petrosal venous complex, especially of large caliber veins, should be attempted whenever possible to increase the safety of surgery. In cases of petrosal vein obliteration, effective brainstem decompression following tumour removal is essential to minimizing the risk of cerebellar congestion.

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