No abstract available.
Transplants*

No abstract available.

Purpose: The purposes of this study were to compare the magnitude and phase between the RR interval and QT interval variability in the frequency domain. METHODS: Twenty four, 12-13 year old healthy males were randomly selected. At resting state and for 5 minutes, ECGs were obtained, and they were digitized to 1000Hz. After measurement of RR interval, QT interval variability was measured using template matching strategy. After normalization of the RR and QT interval time series, power spectral and cross spectral analysis were performed. From each of the time series, low- (0.04-0.15 hertz) and high- (0.15-0.4 hertz) frequency power were measured. From the phase spectrum, the phases and time lags between the two time series at each of the two frequency range were calculated. RESULTS: The average of RR interval and QT interval was 616.0+/-71.0, 364.0+/-47.0 msec, respectively. Their normalized low- and high- frequency power was 4.4+/-7.9 NU(normalized unit), 0.1+/-0.1 NU(p<0.005), and 11.0+/-30.0 NU, 0.3+/-0.3(NU, p<0.005), respectively. The phase differences and resulting time lags between the two interval were -0.5+/-0.4 pi radian(-0.9 seconds) and -0.2+/-0.3 pi radian(-0.4 seconds) in the low- and high-frequency range, respectively. CONCLUSION: During resting state, when compared to RR interval, QT interval oscillates in significantly lower amplitude in both low- and high- frequency ranges. However, the oscillations precede those of the RR interval 0.9 seconds and 0.4 seconds, respectively.
Electrocardiography ; Humans ; Male

Hyperthyroidism is a well known cause of atrial fibrillation. It is also known that control of hyperthyroidism can usually curb thyrotoxic atrial fibrillation and restore sinus rhythm. In this study, 282 patients with hyperthyroidism were investigated to quantify the incidence of atrial fibrillation, and to identify the vulnerable groups. In addition, we compared two groups of subjects with atrial fibrillation-one group with hyperthyroidism and the other group without
Aged ; Atrial Fibrillation ; Female ; Follow-Up Studies ; Heart Diseases ; Humans ; Hyperthyroidism ; Incidence ; Male ; Sex Ratio ; Thyroid Gland

The incidence of conjoined twins is so rare that few anesthesiologists have an opportunity of managing them. Especially in Korea, there are only a few reports describing the anesthetic management for surgical separation of newborn conjoined twins. We experienced the successful anesthetic management for surgical separation of thoraco-xiphopagus conjoined twins without any particular problems. After applying the noninvasive monitors (ECG, pulse oximeter), one of the twins (twinA) with congenital heart disease was administered with intravenous ketamine for induction of anesthesia and intubated without neuromuscular blocker. Anesthesia was maintained with N2O-O2 and hand ventilation using Mapleson D breathing circuit. After maintaining airway of the twinA, the twinB was intubated and maintained with the same manner. Eighteen days after the separation procedure, the twinA with congenital heart disease died and the other one, twinB has been alive with normal growth and development.
Anesthesia ; Growth and Development ; Hand ; Heart Defects, Congenital ; Humans ; Incidence ; Infant, Newborn ; Ketamine ; Korea ; Neuromuscular Blockade ; Respiration ; Twins, Conjoined* ; Ventilation

STUDY DESIGN: A prospective clinical study with radiologic assessment was conducted. OBJECTIVES: To analyze the height changes of the intervertebral disc and neural foramen and width changes of the neural foramen after anterior lumbar interbody fusion and posterior fixation in the lumbar spine. SUMMARY OF LITERATURE REVIEW : Anterior lumbar interbody fusion distracts the height of the intervertebral disc and neural foramen and the width of the neural foramen. MATERIALS AND METHODS: Minimal anterior lumbar interbody fusion and posterior fixation were performed in 20 cases from January 1999 to January 2001. The measuring factors were the height of the anterior and posterior discs, and the height and width of the neural foramen, measured with a caliper in 1mm reconstructive, computed tomography, sagittal images before and 6 months after anterior lumbar interbody fusion. The factors were independently measured by three different persons. RESULTS: The height of the anterior and posterior discs was increased by mean 32.2% and 40.5%, respectively. The height of the right and left neural foramen was increased by mean 15.7% and 18.3%, respectively. The width of the superior, middle and inferior neural foramen was increased by mean 20.6%, 30.3% and 38.6%, respectively. There were significant increases in all measuring factors after minimal anterior lumbar interbody fusion. CONCLUSIONS: Minimal anterior lumbar interbody fusion significantly increased the height of the anterior and posterior intervertebral discs, and the height and width of the neural foramen, and produced neural decompression.
Decompression ; Humans ; Intervertebral Disc* ; Prospective Studies ; Spine*

We present a case of acquired tracheoesophageal fistula (TEF) which was found during induction of general anesthesia for clipping of aneurysm. The patient had been intubated with endotracheal tube for 10 days and then done tracheotomy for 45 days. Thereafter, TEF was confirmed by MRI and treated with fistula repair and tracheal fenestration. Acquired TEF can occur under the condition of prolonged tracheal intubation with high cuff pressure (>30 mmHg) and can also result from intratracheal neoplasm, mediastinitis, and other tracheal or esophageal damages. If unrecognized during anesthetic induction, TEF can cause gastric dilatation and rupture, pulmonary aspiration and respiratory failure. So early diagnosis and proper management is very important whenever TEF is suspected during anesthetic induction.
Anesthesia, General ; Aneurysm ; Early Diagnosis ; Fistula ; Gastric Dilatation ; Humans ; Intubation ; Magnetic Resonance Imaging ; Mediastinitis ; Respiratory Insufficiency ; Rupture ; Tracheoesophageal Fistula* ; Tracheotomy

Rapid administration of solution containing dextroae results in marked hyperglycemia and osmotic diuresis hut a balanced electrolyte solution containing maltese does not increase blood sugar. 30 patients were chosen at random and divided into 3 groups j.e, one group received 5% dextrose in water, the second group received Hartmann solution and the third group, 5% maltose in a balanced electrolyte solution. The Patient's blood was collected in the operating room prior to the start l.V. infusion, for the measurement of blood sugar, insulin, osmolarity and electrolrtes in various conditions of N.P.O. Intravenous fluid was administered at a rate of 10 m1/kg/hour while anesthesia was induced and maintained with an endotracheal tube in place. Blood samples were taken one hour. 2 hours and 3 7ours f:on the time 1,V. infusion started, In the of 5% dextrose in water groups, the value of blood sugar and insulin was 88.5+/-12.1 mg% and 14.60+/-7.67 un/ml at NPO, 257.7+/-60.8mg% and 70.75+/-37.55 un/m1 at 1 hour, 298.8+/-84.4mg%: and 143.19+/-50.32 un/ml at 2 hours and 228.6+/-75.8% and 127.71+/-56.98 un/m1 at 3 hours. Although the b1ood sugar and insulin values increased markedly. but potassium and chloride were 4.74+/-0.55 mEq/l and 101.1+/-2.9 mEq/l and 4.11+/-0.31 mEq/l, 107.4+/-2.3 mEq/l and 3.75+/-0.41 mEq/l, 176.4+/-2.7mEq/l and 3.89+/-0.50mEq/l, 106.3+/-2.2 mEq/l and shoewed mild decrease, by the way, osmolarity and serum sodium did not changed. In contrast to the 5% dextrose in water groups, there are no changes in the blood glucose. insulin levels, osmolarity or and electrolrtes in the either Hartmann or Elitol (Elitol=5% maltose contained in a balanced electrolyte solution) groups. There was a slight increase in osmolarity with maltose but it was not significant. Accordingly it is concluded that rapid infusion of harmann or 5% maltose contained ina balanced electrolyte solution affects the blood sugar and insulin levels insignificantly compared to the dextrose cont5aining solution which increase the blood sugar and indulin levels markedly.
Anesthesia ; Blood Glucose* ; Diuresis ; Electrolytes* ; Glucose ; Humans ; Hyperglycemia ; Insulin* ; Maltose ; Operating Rooms ; Osmolar Concentration* ; Potassium ; Sodium ; Water

PURPOSE: To investigate the efficacy of anterior chamber paracentesis in intravitreal triamcinolone acetonide injection (IVTA). METHODS: A prospective, randomized clinical trial was conducted on 30 eyes of 30 patients undergoing IVTA. Eyes were randomly divided into two groups, those which had undergone anterior chamber paracentesis (Group 1, 15 eyes) and those which had not (Group 2, 15 eyes). We analyzed postoperative changes in intraocular pressure (IOP) in each group. RESULTS: In group 1, the mean preoperative IOP was 15.33+/-1.72 mmHg; postoperative IOP at 2 and 15 minutes was 7.80+/-1.47 and 11.73+/-1.67 mmHg, respectively. In group 2, there was significant elevation of IOP (46.73+/-8.26 mmHg) 2 minutes after the injection, although this was reduced to the normal range (16.13+/-2.61 mmHg) within 15 minutes. CONCLUSIONS: Routine anterior chamber paracentesis seems to be inappropriate considering the brief elevation in IOP that immediately follows IVTA.
Anterior Chamber* ; Humans ; Intraocular Pressure ; Intravitreal Injections ; Paracentesis* ; Prospective Studies ; Reference Values ; Triamcinolone Acetonide ; Triamcinolone*

The search for tumor-avid agents for use in nuclear medicine imaging is an ongoing field of importance. The purpose of this study was to determine the affinity for radiolabeled vitamin B12 by a wide histologic variety of tumor types in mice. Seventeen different types of tumor were grown subcutaneously in female Balb/C or Balb nu/nu(nude) mice. When the tumors reached about 1 cm in diameter, mice were injected intraperitoneally with 57Co-vitamin B12. Twenty-foul hours later, the mice were sacrificed. Organs and tissues were removed, weighed, and activity per mg determined by gamma counter. Values represented cpm/mg tissue that was normalized to 20 grams body weight for each mouse. A wide variety of tumor types showed significant uptake and concentration of 57Co-vitamin B12, as evidenced by tumor:tissue activity ratios. For many tissues of great importance in terms of background(bone, muscle, blood), the tumor:tissue activity ratios of uptake were high. These data strongly suggest that further efforts to evaluate the utility of radiolabeled adducts of vitamin B12 for clinical use in oncologic imaging are warranted.
Animals ; Body Weight ; Female ; Humans ; Mice* ; Nuclear Medicine ; Vitamin B 12