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Microvascular Decompression: Salient Surgical Principles and Technical Nuances
Published on: July 5, 2011
Venous Compromise/Deep Venous Thrombosis During Parasagittal Meningiomas Resection
Benedicto Oscar Colli1, Carlos Gilberto Carlotti Junior2, Ricardo Santos de Oliveira2
1Division of Neurosurgery, Department of Surgery, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil. bocolli@fmrp.usp.br.
Abstract:
We are reporting the case of JB, a 28-year-old male who presented to our hospital in 2009. The patient reported a progressive increase in a known mass that had been deforming their head since 2005. He had suffered from a first-time seizure four years later (in 2009). Neurological examination revealed a large tumor protruding in the parietal region, which was confirmed by CT. A subsequent MRI demonstrated a hyperostotic contrast-enhancing parasagittal tumor occluding the middle third of the superior sagittal sinus, with cortical veins joining the sinus adjacent to the tumor.The patient was taken to the OR for a craniotomy and a resection of the tumor with cranioplasty in the same setting. The tumor was exposed by using a straight incision on the scalp. A craniotomy was performed around the tumor by using multiple burr holes; now the bone could be separated from the dura and removed. The intradural tumor was exposed, and a cortical vein draining into the tumor could not be preserved. Some residual tumor was left close to the anterior part of the superior sagittal sinus. The dura was reconstructed with pericranium, and the bony defect was closed with titanium mesh. The patient woke up initially paraplegic, but 7 days later, he started with proximal movements in both legs. Unfortunately, he died suddenly in the second postoperative week, due to pulmonary embolism. The case is reviewed in this manuscript to analyze the contributing factors of the complications that were observed and to suggest management strategies to avoid them.
Insights
A rare parasagittal tumor caused progressive head deformity and seizures. Surgical resection led to temporary paralysis but ultimately pulmonary embolism, highlighting the need for improved management strategies.
Area of Science:
- Neurosurgery
- Oncology
Background:
- A 28-year-old male presented with a deforming head mass and seizures.
- Imaging revealed a hyperostotic, contrast-enhancing parasagittal tumor obstructing the superior sagittal sinus.
Purpose of the Study:
- To report a rare case of a parasagittal tumor.
- To analyze contributing factors to observed complications.
- To suggest management strategies to avoid complications.
Main Methods:
- Craniotomy and tumor resection with cranioplasty.
- Intraoperative identification of a draining cortical vein that could not be preserved.
- Postoperative management and complication analysis.
Main Results:
- Complete tumor resection was not achieved due to proximity to the superior sagittal sinus.
- The patient experienced temporary paraplegia, followed by recovery of leg movement.
- The patient unfortunately died from a pulmonary embolism in the second postoperative week.
Conclusions:
- Parasagittal tumors pose significant surgical challenges due to their location and vascular involvement.
- Careful surgical planning and management are crucial to minimize complications such as venous compromise and embolism.
- Further research into optimal surgical techniques and postoperative care for these rare tumors is warranted.
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