Severe hypoglycemia reduces the shivering threshold in rabbits.

Background: We previously reported that each 100 mg dL reduction in blood glucose over the range from ≈90 to > 300 mg dL decreases the shivering threshold (triggering core temperature) in rabbits by 1 °C. However, the effects of lower blood glucose concentrations has yet to be evaluated. We thus evaluated the relationship between the shivering threshold and blood glucose concentration over the mild-to-severe hypoglycemic range.

[Anesthesia for a Patient with Acute Appendicitis and Idiopathic Cervical Internal Carotid Artery Vasospasms].

A 33 year-old female patient was admitted to the hospital with acute appendicitis. She had idiopathic cervical internal carotid artery vasospasms and had been taking aspirin. We used intracranial oxygen saturation measuring instrument (INVOS®) for anesthetic management during general anesthesia.

The Effects of Blood Glucose Concentration on the Shivering Threshold in Rabbits.

Background: Hyperglycemia is common in critically ill and surgical patients, as are core temperature disturbances. The effect of hyperglycemia on thermoregulatory defenses remains unknown. We determined the effect of blood glucose concentration on the shivering threshold in rabbits.

[A case of severe hypotension caused by external cardiac compression by tumor and doctor's hand in a patient with mediastinal tumor].

There are several causes of hypotension during anesthesia. We report a case of severe hypotension caused by external cardiac compression. A 72-year-old man was scheduled for resection of mediastinal tumor under general anesthesia.

High-frequency jet ventilation during video-assisted thoracoscopic surgery in a patient with previous contralateral pneumonectomy.

A case of high-frequency jet ventilation (HFJV) during video-assisted thoracoscopic surgery (VATS) in a patient with previous contralateral pneumonectomy is presented. A 77-year-old man with a right pneumothorax was scheduled for bullectomy by VATS. He had undergone left pneumonectomy due to lung cancer 6 years earlier.

Cardiac arrest after spinal anesthesia in a patient with neurally mediated syncope.

We present the case of cardiac arrest in a patient with neurally mediated syncope (NMS). A 66-year-old male patient was scheduled to undergo right inguinal hernioplasty. He had a history of syncope, which occurred a few times a year in childhood and once a year recently.

The usefulness of an earphone-type infrared tympanic thermometer during cardiac surgery with cardiopulmonary bypass: clinical report.

We evaluated the usefulness of a novel earphone-type infrared tympanic thermometer (IRT) during cardiac surgery with cardiopulmonary bypass. Tympanic membrane temperature (T(Tym)) was monitored using the IRT inserted into the right ear canal of 12 adult patients (ASA III) who had been scheduled for elective cardiac surgery with cardiopulmonary bypass under general anesthesia. Rectum (T(Rec)) and nasopharyngeal temperatures (T(Naso)) were also monitored, and all temperatures were recorded at 5-min intervals during cardiopulmonary bypass.

[Pheochromocytoma].

0.1-0.2% of all cases of hypertension are caused by pheochromocytomas, or catecholamine-producing tumors derived from chromaffin tissue.

[Abnormality of thyroid function].

The thyroid hormones are synthesized by iodine. Thyroid dysfunction can develop in patients who have received treatment with iodine-containing contrast media or treatment with amiodarone. Thyrotoxicosis is a symptom due to high levels of thyroid hormone.

Cerebral pial vascular changes under propofol or sevoflurane anesthesia during global cerebral ischemia and reperfusion in rabbits.

Background: Propofol and sevoflurane are commonly used anesthetics for neurosurgery. The aim of the study was to compare the effects of propofol with sevoflurane on cerebral pial arteriolar and venular diameters during global brain ischemia and reperfusion.

Methods: Japanese white rabbits were anesthetized with propofol (n=11), sevoflurane (n=9), or the combination of sevoflurane and intralipid (n=10).

[Total intravenous anesthesia with propofol and remifentanil for a patient with myotonic dystrophy].

A 54-year-old woman, complicated with myotonic dystrophy, underwent laparoscopic cholecystectomy for cholelithiasis. The patient was given total intravenous anesthesia using propofol, remifentanil and vecuronium, combined with epidural anesthesia using ropivacaine. No complication occurred, and the patient recovered from anesthesia without delay.

The shivering threshold in rabbits with JM-1232(-), a new benzodiazepine receptor agonist.

Background: JM-1232(-) is a novel isoindoline derivative which shows sedative and hypnotic activities through the benzodiazepine site of gamma-aminobutyric acid type A (GABAA) receptors. Typical doses of midazolam, another GABAA receptor agonist, slightly reduce the shivering threshold in humans. We thus determined the extent to which JM-1232(-) decreases the shivering threshold.

Intravenous famotidine does not always change core temperature during general anesthesia.

It has been reported that oral premedication with the H(2) receptor antagonist famotidine augmented intraoperative hypothermia. We again investigated whether the H(2) receptor antagonist famotidine significantly affected body temperature during open abdominal surgery under general anesthesia. We studied 20 female patients undergoing elective gynecological surgery.

[Anesthetic management by total intravenous anesthesia with propofol, pentazocine and ketamine].

Background: The authors evaluated the efficacy of anesthetic management by total intravenous anesthesia with propofol, pentazocine and ketamine.

Methods: Thirty-five patients for mastectomy were anesthetized by propofol, pentazocine and ketamine. Patients were divided into two groups by age; one is patients under 61 years of age and the others are patients above 61 years.

[Double-lumen tracheostomy tube (Tracheopart) used in two patients for one-lung ventilation under general anesthesia].

Double-lumen tracheostomy tube (Tracheopart, RUSCH) is now available in Japan. We used the device to perform one-lung ventilation in two patients with previous laryngectomy and permanent tracheostomy. Reliable fixation and observation of the right position during the operation are especially important throughout the procedure.

[Intermittent complete left bundle branch block during general anesthesia].

We report a case of intermittent complete left bundle branch block (CLBBB) which occurred during general anesthesia. An 83-year-old female was scheduled for upper lobectomy of the right lung under general anesthesia. Her preoperative 12-lead ECG showed atrial fibrillation and ST-depression in V4-6.

[Successful control of rapid heart rate with atrial flutter by intravenous administration of esmolol in a patient after total correction of the tetralogy of Fallot].

A 30-year-old woman with atrial flutter after surgical correction of tetralogy of Fallot, underwent gynecological procedure under general anesthesia. Because she had been noted to have atrial flutter and heart failure at 8 weeks' gestation, she was scheduled for dilatation and curettage. Chest X-ray film showed cardiomegaly and pulmonary congestive changes.

[Anesthetic management of three patients with myotonic dystrophy in a family].

Case-1: A 24-year-old woman was admitted because of pressing hydramnion. She was treated by ritodrine hydrochlorides leading to rhabdomyolysis, and she was diagnosed as myotonic dystrophy. She underwent cesarean section because of urgent premature birth.

[Anesthetic management in a patient complicated with left coronary artery-left ventricular fistulae].

We have experienced anesthetic management for posterior lumbar interbody fusion in a 76-year-old female with left coronary artery-left ventricular fistulae. She was admitted to our hospital because of chest pain and was found to have left coronary artery-left ventricular fistulae 6 months before this operation. The electrocardiogram at rest showed T-wave inversions in leads V3-V6.

[Pretreatment with lidocaine accelerates onset of vecuronium-induced neuromuscular blockade].

The purpose of this study was to investigate the effect of pre-treatment with lidocaine on the onset of vecuronium-induced neuromuscular block in a randomized, double-blinded trial. Thirty-one patients were randomly allocated to one of two groups according to the agents administrated 3 min prior to vecuronium injection; Group C, normal saline 0.75 ml.

[Use of magnesium sulfate during resection of pheochromocytoma].

A 75-year-old woman was scheduled to undergo resection of pheochromocytoma under general and epidural anesthesia. Continuous infusion of magnesium sulfate was initiated at the time of tracheal intubation and was terminated at the tumor resection. Intraoperative blood pressure and heart rate were stable, but blood pressure rose above 160 mmHg when the tumor was handled.

[Pre-treatment with ketamine reduces incidence and severity of pain on propofol injection].

The purpose of this study was to evaluate the effect of pre-treatment with ketamine on the reduction of pain during injection of propofol in adult patients. We conducted a prospective, randomized, double-blinded trial. Forty-three patients were randomly allocated to one of two groups according to the agents administered before hand; Group C, normal saline 2 ml and Group K, 1% ketamine 2 ml.