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Trichorrhexis nodosa(TN) denotes small node-like swelling with a loss of cuticle of the hair shaft through which the hair readily fractures. The basic cause of TN is mechanical or chemical trauma, and a contributing factor is an inherent weakness of the hair shaft. We report a case of localized TN in a 37-year-old male. He had an ovoid hair patch with multiple small white-gray dotted and stubby hairs localized to the right occipital scalp. TN is known to be the commonest of all hair shaft anomalies (Price, 1975). However TN is rarely reported, and there have been only four reports in Korean dermatological literature, to our knowledge, which might be due to underdiagnosis of this disorder. We postulated that diagnostic difficulty lies in the discrepancy between terminology and gross morphological findings.
Adult ; Fibrinogen ; Hair ; Humans ; Male ; Scalp

PURPOSE: This study evaluated the clinical and radiological outcomes of unstable distal clavicular fractures treated with an AO Hook plate. MATERIALS AND METHODS: From March 2009 to October 2010, sixteen patients with distal clavicular fractures underwent open plating using an AO Hook plate. The clinical outcomes were assessed by measuring the UCLA scores and KSS sores, and the radiological outcomes were evaluated using simple radiographs at the final follow-up. RESULTS: Fracture union was obtained in all patients at an average of 13.9 weeks (range, 9~20 weeks). The UCLA scoring system showed excellent results in 9 cases and good results in 7. The average KSS scores of distal clavicular fractures were 95.5. At the final follow-up, subacromial osteolysis developed in 11 cases (68.7%) of whom 3 suffered from pain around the acromion. Other complications occurred in 4 patients: one had a fracture adjacent to the plate proximally, two had a stiff shoulder with subacromial impingement, and one had hypoesthesia around the surgical wound. CONCLUSION: Unstable distal clavicular fractures treated with a Hook plate provided rigid fixation and satisfactory outcomes considering the high union rate. Nevertheless, potential postoperative complications related to morphometric properties of the plate should be considered.
Acromion ; Clavicle ; Follow-Up Studies ; Humans ; Hypesthesia ; Osteolysis ; Postoperative Complications ; Shoulder

Urokinase use after stereotaxic evacuation of hematoma became a popular method in treatment of hypertensive intracerebral hematoma. We obtained excellent result in evacuaIon of the hematoma which was remained after stereotaxic evacuation or direct approach for 24 raumatic intracerebral hematoma cases. And we found several advantages in this method compared with standard treatment modalities. We think that this is a new, effective treatment method for traumatic intracerebral hematoma.
Hematoma* ; Urokinase-Type Plasminogen Activator*

BACKGROUND: Activated coagulation time (ACT) is commonly used to guide heparin and protamine dosing during cardiovascular surgery. There are many factors that influence the ACT such as time of test, hemodilution, temperature, aprotinin and etc. We considered the other factor that influence the ACT, the route of blood sample. METHODS: This study included 40 patients who were scheduled for cardiac surgery. Whole blood was sampled through arterial and central venous line at 10 minutes after surgical incision and heparin administration. The ACT was measured with Hemochron 801 blood coagulation timer with 12 mg of celite surface activator. RESULTS: At 10 minutes after surgical incision and heparin administration, arterial blood and venous blood ACTs were 127 20, 537 214 seconds and 118 18, 496 145 seconds respectively (p<0.05). CONCLUSIONS: We conclude that the venous blood ACT is more less than arterial blood ACT during cardiovascular surgery.
Aprotinin ; Blood Coagulation ; Diatomaceous Earth ; Heart* ; Hemodilution ; Heparin ; Humans ; Thoracic Surgery*

The spontaneous spinal epidural hematoma has a rare occurrence. Recently the authors have experienced a case of chronic spontaneous thoracic epidural hematoma in a 26 year old woman. She presented with Lt. scapular and upper thoracic pain, paraparesis and acute voiding difficulty during pregnancy and postpartum period. The thoracic myelography with niopam was performed by lumbar tap and C1-2 tap. Resoluted spinal epidural hematoma was removed with nearly complete recovery after 5 weeks. There was no trauma history but Lt. scapular and upper thoracic pain had been developed during previous pregnancy about 3 years ago. We present that this case may be related with pregnancy and delivery.
Adult ; Female ; Hematoma ; Hematoma, Epidural, Spinal* ; Humans ; Iopamidol ; Myelography ; Paraparesis ; Postpartum Period ; Pregnancy

The distance from the skin to the lumbar epidural space was measured in 87 women undergoing cesarean section(C/S) and 36 patients undergoing total abdominal hysterectomy(TAH) to compare with the C/S group. The patients age, height, most recent antenatal or preopertive weight, and shoe size were obtained before measuring the epidural depth. The PI(ponderal index) was caculated by dividing weight(kg) by height(m). In patients undergoing total hysterectomy, the mean distance was found to be 4.42 cm, which correlated with weight and PI (p<0.05), but height and shoe size had no significant effect on this distance. In women undergoing cesarean section, the mean distance was found to be 4.48 cm which had no correlation with any other measurements.
Cesarean Section ; Epidural Space* ; Female ; Humans ; Hysterectomy ; Pregnancy ; Shoes ; Skin*

The distance from the skin to the lumbar epidural space was measured in 87 women undergoing cesarean section(C/S) and 36 patients undergoing total abdominal hysterectomy(TAH) to compare with the C/S group. The patients age, height, most recent antenatal or preopertive weight, and shoe size were obtained before measuring the epidural depth. The PI(ponderal index) was caculated by dividing weight(kg) by height(m). In patients undergoing total hysterectomy, the mean distance was found to be 4.42 cm, which correlated with weight and PI (p<0.05), but height and shoe size had no significant effect on this distance. In women undergoing cesarean section, the mean distance was found to be 4.48 cm which had no correlation with any other measurements.
Cesarean Section ; Epidural Space* ; Female ; Humans ; Hysterectomy ; Pregnancy ; Shoes ; Skin*

The effects of dehydration on vasopressin and oxytocin immunoreactive neurons in the hypothalamus was investigated by using a immunohistochemistry. Adult Mongolian gerbil[Meriones unguiculates] were deprived of drinking water. Dehydrated animals were sacrificed on the 7th, 14th and 21st day of water retriction. The results are as follows : 1. The body weights were decreased about 1.8% daily. On the 21st day of dehydration, they were shown up to 45% compare to the control. 2. In the hypothalamus of the control group, majority of vasopressin and oxytocin immunoreactive neurons were located in the supraoptic and paraventricular nuclei. 3. Changes due to dehydrated stimulation were mainly observed in vasopressin immunoreactive neurons. And these changes in supraoptic nuclei were more severe than those in paraventricular nucleus. Size of vasopressin immunoreactived cells and of areas were increased as to proceed the dehydration. The numbers of those were increased on the 7th day of dehydration, and then they were continously decreased. 4. Although oxytocin immunoreactive neurons were slightly changed in numbers during dehydration, they were not shown conspicuous changes compare to vasopressin immunoreactive neurons. Thus it is appeared that vasopressin secretory neurons in the hypothalamus of Mongolian gerbil are affected by osmotic stress induced dehydration while oxytocin neurons may be affected by other factors.
Adult ; Animals ; Body Weight ; Dehydration* ; Drinking Water ; Gerbillinae* ; Humans ; Hypothalamus* ; Immunohistochemistry ; Neurons* ; Osmotic Pressure ; Oxytocin* ; Paraventricular Hypothalamic Nucleus ; Supraoptic Nucleus ; Vasopressins* ; Water

WPW syndrome is the most common variaty of preexcitaton syndrome in which whole or part of ventricular muscle is activated by the atrial impulse earlier than would be expected if the impulse reached the ventricle by way of normal conduction system alone. WPW syndrome result from existence of accessory muscle bridge(atrio ventricular connection) between atrium and ventricle. The ventricular complex observed in WPW syndrome during periods of sinus rhythm is the result of fusion, with intial phase of ventricular activation representing excitation via accessory pathway and later forces produced by excitation of residual portions of ventricle via normal His-purkinje system. The variations in QRS aberrancy in WPW syndrome depend on varying degree of preexcitation. This experimental study was undertaken to increase our knowledge on the ventricular fusion in WPW syndrome through epicardial mapping after experimental induction of ventricular preexcitaion of WPW type. In 5 normal dogs, the heart was widely exposed through transverse thoracotomy and positioned in a pericardial cradle, then electric wires were fixed on the epicardium of right atrium and ventricular bases(anterobasal and posterobasal) areas of right ventricle, anterobasal and poaterobasal areas of left ventricle for atrial and ventricular pacing. Epicardial mapping was then performed during atrial pacing alone and during atrioventricular sequential pacing at the same rate. Atrioventricular sequential pacing was done with various short AV intervals(60-110 msec) for the purpose of premature stimulation on ventricular base. In mapping we used the grid system which consisted of 29 areas to cover the right ventricle and 23 areas to cover the left ventricle. We drew 9 epicardial ishochrone maps in 5 dogs. The epicardial data during atrio-ventriclar sequential pacing were then compared with those during atrial pacing at an identical rate to study the ventricular fusion in WPW syndrome. The results were as follows; 1) The preexciting wave spread radially from the stimulated basal area to the right and left(or anterior and posterior wall) and the apex. 2) Preexciting wavefronts collided with the normal wavefronts in a wide range of ventricular activation time. 3) Preexcitation widened according to the degree of the shortening of the AV interval. 4) The duration of ventricular activation was greater in preexcited ventricles than in normally activated ventricles. The more prematurely the ventricle was stimulated, the greater the duration of ventricular activation was.
Animals ; Dogs ; Epicardial Mapping ; Heart ; Heart Atria ; Heart Ventricles ; Pericardium ; Thoracotomy ; Wolff-Parkinson-White Syndrome*