Successful resection of bilateral parafalcine meningioma with unilateral interhemispheric and contralateral transfalcine approach under nonintubated spontaneous breathing conditions: illustrative case

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<jats:sec><jats:title>BACKGROUND</jats:title> <jats:p>The best surgical approach for resecting bilateral parafalcine meningioma, as well as the optimal anesthesia and airway management for craniotomy in patients with interstitial pneumonia (IP) for preventing postsurgical exacerbation, remains unclear.</jats:p></jats:sec> <jats:sec><jats:title>OBSERVATIONS</jats:title> <jats:p>A 66-year-old female with a history of multiple relapses of IP underwent craniotomy for resection of a 4.5-cm bilateral parafalcine meningioma located just beneath the inferior sagittal sinus. To avoid mechanical ventilation or high-concentration oxygenation, the entire procedure was performed under nonintubated spontaneous breathing conditions with a supraglottic airway/laryngeal mask airway (SGA/LMA) device. Half of the tumor was resected using the ipsilateral interhemispheric approach, while the remaining half was resected using the contralateral transfalcine approach (CTA). No brain retractors were required. Preoperative embolization contributed toward reducing blood loss and surgery duration. During most of the operation, additional oxygen administration was not required. The postoperative course was uneventful, without exacerbation of the IP.</jats:p></jats:sec> <jats:sec><jats:title>LESSONS</jats:title> <jats:p>This case demonstrated the utility and feasibility of a unilateral interhemispheric approach combined with CTA for resection of a bilateral parafalcine meningioma. Additionally, this case provides an alternative method of airway and anesthesia management with an SGA/LMA device and nonintubated spontaneous breathing for the prevention of postoperative acute exacerbation of IP.</jats:p></jats:sec>

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