RESUMO
BACKGROUND: Bisphosphonates may cause serious adverse events, including osteonecrosis of the jaw. This article describes a case of successful application of radiofrequency thermocoagulation for pain caused by osteonecrosis of the jaw. CASE PRESENTATION: An 86-year-old woman who had received alendronate sodium hydrate for osteoporosis was diagnosed with osteonecrosis of the right mandible after dental treatment. Despite repeated conservative and debridement treatments, the patient could not eat due to intractable pain; accordingly, her condition was debilitated. The patient was referred to our pain management clinic for radiofrequency thermocoagulation of the right mandibular nerve. Immediately after the procedure, her pain drastically improved and she could eat; moreover, the pain has not recurred for 3 years. CONCLUSION: Our findings demonstrate that minimally invasive radiofrequency thermocoagulation may have long-term effects in patients with chronic pain caused by osteonecrosis of the jaw that is refractory to conservative treatment.
RESUMO
BACKGROUND Postoperative acute liver failure, a complication following spine surgery, can cause delayed emergence from total intravenous anesthesia. Here, we report a case of acute severe postoperative liver failure following posterior spinal correction and fusion in a patient with congenital scoliosis. CASE REPORT A girl's congenital scoliosis worsened, and posterior spinal correction and fusion was scheduled. General anesthesia was induced with sevoflurane, fentanyl, target-controlled-infusion with propofol, and rocuronium. General anesthesia was maintained using target-controlled-infusion with propofol and remifentanil. The operation was completed with no remarkable complications. The operative time was 516 min and the anesthesia time was 641 min in the prone position. Emergence from anesthesia was poor, and it took 68 min to remove the tracheal tube after discontinuation of the anesthetic agents. The patient was drowsy and was transferred to her room in a general ward without reporting any pain, nausea, or dyspnea. On postoperative day 1, the results of laboratory investigations were suggestive of acute liver failure; contrast-enhanced computed tomography revealed a poorly enhanced area in the umbilical portion of the left liver lobe portal vein, indicating ischemic liver damage. Although no additional treatment was administered for acute liver failure, the patient recovered over time, and laboratory values normalized. No other postoperative complications were observed, and the patient was discharged on postoperative day 1. CONCLUSIONS Delayed emergence from general anesthesia may be due to acute liver failure following posterior spinal correction and fusion. There are several possible causes of postoperative liver failure, including anesthetics, prone position, and spinal surgery.
