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Background: Several studies have reported that gross total resection contributes to improved prognosis in patients with butterfly glioblastoma (bGBM). However, it sometimes damages the corpus callosum and cingulate gyrus, leading to severe neurological complications. Case Description: We report two cases of bGBM that was safely and maximally resected using brief and exact awake mapping after general anesthesia. Two patients had butterfly tumors in both the frontal lobes and the genu of the corpus callosum. Tumor resection was first performed on the nondominant side under general anesthesia to shorten the resection time and maintain patient concentration during awake surgery. After that, awake surgery was performed for the lesions in the dominant frontal lobe and genu of the corpus callosum. Tumor resection was performed through minimal cortical incisions in both frontal lobes. Postoperative magnetic resonance imaging showed gross total resection, and the patients had no chronic neurological sequelae, such as akinetic mutism and abulia. Conclusion: bGBM could be safely and maximally resected by a combination of asleep and brief awake resection, which enabled patients to maintain their attention to the task without fatigue, somnolence, or decreased attention. The bilateral approach from a small corticotomy can avoid extensive damage to the cingulate gyrus.

We report a case of carcinoid syndrome requiring an emergency operation for an upper gastrointestinal perforation. A 46-year-old man had undergone left lower lobectomy for a lung carcinoid tumor seven years previously, and liver metastasis was found five years previously. He developed cutaneous flushing and watery diarrhea, and was diagnosed with carcinoid syndrome one year previously. Although he was treated with octreotid, his symptoms became worse and he was admitted to our hospital. During the hospital stay, he underwent an emergency operation for an upper gastrointestinal perforation. Before the operation, hemodynamics were unstable. Anesthesia was induced with sevoflurane and propofol, and maintained with sevoflurane and remifentanil. Only vasopressin was used for the treatment of hypotension. Landiolol was used for perioperative tachyarrythmia. During anesthesia, there was no severe hypotension or hypertension. After the operation, he was managed with intubation in the ICU. Octreotid was administered again for the carcinoid syndrome. Vasopressin was necessary for the treatment of hypotension in the ICU. After improvement of hemodynamics, extubation was performed on the 3rd ICU day and he was discharged from the ICU on the 4th ICU day. In conclusion, we were able to perform good perioperative management of carcinoid syndrome accompanied by hemodynamic instability.

There are few reports on general anesthesia in survivors of ARDS. Patients after recovery from ARDS are at risk for compromised pulmonary function, neuromuscular weakness and cognitive dysfunction. We report 2 cases of general anesthesia in survivors of ARDS. In Case 1, a 64-year-old man who had recovered from ARDS associated with Legionella pneumonia underwent carotid endarterectomy. In Case 2, a 69-year-old man who had recovered from ARDS associated with pneumococcal pneumonia underwent hepatectomy. Concerning the preoperative assessments, the spirometry data were almost normal but Hugh-Jones classification scale was II in both cases. Diffusion disturbance might be the cause of discrepancies between good respiratory functions and limited daily activities. In both cases, anesthesia was given with propofol, fentanyl remifentanil and sevoflurane. Peak airway pressure was maintained below 15 cmH2O with pressure control ventilation. They were extubated at the end of surgery and there were no serious complications during the perioperative period.

Preoperative forced expiratory volume in 1 second less than 1 l is a risk factor for anesthesia. We report perioperative management and prognosis of 7 patients with restricted lung function who underwent lung resection under general anesthesia. We assessed the patients preoperatively from the point of view of heart-lung functions such as predicted postoperative forced expiratory volume in 1 second greater than 0.8 l, an ability of walking on the level for more than 5 minutes at his own speed without a rest, presence of hypercapnia, and degree of pulmonary hypertension. One patient was extubated on the first postoperative day because of an asthmatic attack, whereas the remaining 6 patients were extubated in the operating room. Although 1 patient developed postoperative complications of lung air leakage and pneumonia, he recovered with conservative therapy. All patients were discharged without any sequela. We were able to manage high-risk patients with limited lung functions successfully during the perioperative period without serious complications.

Anesthesia for the tracheobronchial stent placement involves the risk of airway narrowing and obstruction. Controlled ventilation with relatively high airway pressure is usually used to maintain oxygenation and ventilation during anesthesia. However, controlled ventilation does not always provide tidal volume and oxygenation due to gas leakage from tracheobronchial fistula. We report 2 cases of general anesthesia under spontaneous respiration for the airway stent placement to treat tracheal and bronchial fistula. Case 1; A 55-year-old man with tracheoesophageal fistula due to the esophageal cancer was scheduled for the stent placement. Anesthesia was given with dexmedetomidine and sevoflurane preserving spontaneous respiration. The surgery was performed without complications of hypoventilation and hypoxemia throughout the procedure. Case 2; A 71-year-old woman developed empyema with large bronchopleural fistula as the result of the complication of radiation for the breast cancer. The stent placement was scheduled for closure of the fistula. Anesthesia was induced with remifentanil and sevoflurane with spontaneous respiration. When inserting the rigid bronchoscope, cough reflex occurred and propofol was added to deepen the anesthesia. The stent placement was performed with general anesthesia under spontaneous respiration without any complications.

We report a case of general anesthesia for subtotal thyroidectomy in a pregnant woman with 27th week gestation. A 33-year-old pregnant woman was diagnosed with thyroid carcinoma. We planned subtotal thyroidectomy at 27 weeks of gestation. We gave thiamylal, fentanyl and rocuronium for induction of anesthesia. Tracheal intubation was performed. Anesthesia was maintained with sevoflurane and fentanyl. Because of tachycardia, we tilted the operating table to displace the uterus to the left. We continued monitoring fetal heart rate during the operation. The fetal heart rate remained between 130 and 150 beats x min(-1). The operation was performed with no trouble. She gave birth to a baby at 37th week gestation. We should pay attention to maternal safety, fetal toxicity including teratogenecity, fetal asphyxia and pre-term labor. We could successfully manage her anesthesia using intraoperative fetal heart rate monitoring.