Experience of Right Leg Pain Control by Left Epidural Space Inserted Spinal Cord Stimulator: A case report / 대한통증학회지

Spinal cord stimulation (SCS) was first attempted by Shearly et al for the relief of intractable pain. A spinal cord stimulator has traditionally been used for failed back surgery syndrome (FBSS) angina pectoris, complex regional pain syndrome (CRPS) and ischemic pain in the extremity. However, the complications associated with the use of a spinal cord stimulator, such as wound infection, hematoma, lead migration and device malfunction; make its long term application difficult. Here, our experience of an interesting case, in which intractable right leg pain was controlled using a spinal cord stimulator placed in the left epidural space, is reported, with a review of the literature.

Improvement of Migraine by Cervical Epidural Block: A case report / 대한통증학회지

Migraine is a disabling headache that can occur with or without aura. We present here a case of migraine that was effectively managed by a series of cervical epidural blocks. A 41-year-old woman who had suffered from severe headache on her left temporal area for 12 years visited our pain clinic. Her 11-point numeric pain rating scale was 10 out of 10 at the first visit and the symptoms were associated with homonymous visual disturbances, paresthesia on the left face, shoulder and arm, and general weakness. For the first 5 years after the headaches began, her headache was relatively well controlled by acetaminophen; after then, the acetaminophen wasn't effective. After wandering from this hospital to the next one in search of relief, she managed to visit our pain clinic. We tried several blocks including cervical epidural block, and she was continuously medicated with sumatriptan. Her headache was gradually relieved. Now, her 11-point numeric rating scale is 1-2 out of 10 at the most during her headache attacks.

Intraoperative Monitoring Using Somatosensory Evoked Potential during Spinal Deformity Surgery

OBJECTIVE: Intraoperative monitoring using somatosensory evoked potential (SEP) study has been used increasingly to monitor neurological function during scoliosis surgery and other high-risk spinal surgeries. However, there are few studies related to this intraoperative monitoring, particularly in severe spinal deformity surgery, in Korea. So we evaluated the clinical efficacy of intraoperative SEP monitoring and considered the risk factors related to spinal surgery. METHOD: We performed a posterior tibial nerve somatosensory evoked potential study for intraoperative monitoring during surgical procedures in 101 patients (male 46, female 55). RESULTS: Neurologic damage occurred in 16 patients (10 congenital scoliosis cases, 5 tuberculous kyphosis cases, and 1 degenerative spondylosis case) after surgical procedures. Delayed postoperative neurologic damage occurred in 4 patients (2 mild damage cases, 2 severe damage cases) among 85 cases which showed normal responses during surgical procedures. Sensitivity of this study was 75%, and specificity was 95.3%. CONCLUSION: Somatosensory evoked potential study for intraoperaive monitoring is a sensitive and very useful method to detect iatrogenic lesions during spinal deformity surgery with satisfactory specificity. However, to improve the sensitivity and specificity of the intraoperative monitoring, combination of motor evoked potentials is recommended.

Comparision of Propofol and Thiopental Sodium as Anesthetic Agents for Electroconvulsive Therapy: Effects on Seizure Duration, Hemodynamic Responses and Recovery / 대한마취과학회지

BACKGROUND: Electroconvulsive therapy (ECT) still remains a place in modern psychiatric practice. The anesthetic agent for ECT should provide smooth and rapid induction, rapid recovery and attenuation of the physiologic effects of ECT as well as minimal antagonistic effects on seizure activity. We performed a study to assess the comparative effects of propofol and thiopental sodium on seizure activity, hemodynamic stability, and recovery after ECT. METHODS: Ten patients scheduled for maintenance ECT participated in this prospective, randomized, crossover study. The induction dose was 1.5 mg.kg 1 of propofol and 3 mg.kg 1 of thiopental sodium. The lengths of motor and EEG seizure were measured after each electric stimuli. Mean arterial pressure, heart rate and recovery time were also compared between two groups. RESULTS: Both propofol and thiopental sodium were associated with mean motor and EEG seizure durations above thirty seconds. However, the improved hemodynamic stability associated with propofol and recovery time of propofol (8.1 +/- 2.8 min) was shorter than thiopental sodium (13.0 +/- 9.3 min). CONCLUSIONS: Compared with thiopental sodium, the use of propofol was associated with a clinically insignificant decrease in seizure duration and improved hemodynamic stability, recovery time. We conclude that propofol may be a useful alternative to thiopental sodium for ECT therapy.

Tracheal Rupture during the Use of Robertshaw Double-lumen Endobronchial Tube for One-lung Ventilation: A case report / 대한마취과학회지

Rupture of the trachea as a result of external trauma is well documented. But, rupture of the membranous trachea following tracheal intubation has been infrequently noted. Risk factors associated with tracheobronchial rupture include inexperienced endoscopists, intubating stylets, multiple vigorous attempts at intubation, tracheal abnormalities, overdistension of tracheal or bronchial cuff with high pressure, low volume cuffs, and old age. We report a case of tracheal rupture occurred during one lung ventilation using Robertshaw double-lumen endotracheal tube for right upper lobe lobectomy. The etiology and treatment are discussed and the recent literature is reviewed.

Studies of 24 Cases in Continuous Epidural Anesthesia for Cesarean Section in Preeclamptic Parturients / 대한마취과학회지

BACKGROUND: Adequate evaluation and monitoring for pre-eclamptic paturient and capable assistance before induction for anesthesiologist, must be taken to avoid sudden severe maternal hypertension with intubation during a Rapid Sequence intravenous induction. Such event predispose the paturient to intracranial hemorrhage and pulmonary hypertension with pulmonary edema. To diminish danger of hypertension that can be developed during general anesthesia and facilitate control of blood pressure, 24 women presenting for cesarean section were studied. METHODS: All received 17.9+/-2.6ml of 0.5% bupivacaine, including 3ml of test dose, through the epidural catheter inserted in T12-L1 interspace using 18 gauge Tuohy needle to the patients with a lateral decubitus position. We measured blood pressure and heart rate in 5, 10, 15, 20, 30, 45, and 60 minutes after injection of 0.5% bupivacaine and 15 minutes after transferred to recovery room. RESULTS: The blood pressure of the patients started to decrease in 5 minutes and most decreased in 20 minutes after injection, the heart rate had little change but decreased significantly in 45 minutes. Apgar Scores of the neonates at 1 and 5 minutes were 7.3+/-2.0 and 9.2+/-1.5. The patients used ephedrine and crystalloid solution for correction of hypotension were 6 of 24 women and had no any systemic toxicity or neurologic symptoms by local anesthetics(bupivacaine). CONCLUSION: Continuous epidural anesthesia for cesarean section in preeclamptic patients is recommended for safe anesthesia.