No abstract available.
Curriculum* ; Emergencies* ; Emergency Medical Technicians* ; Humans

The present report deals with the behaviour of mast cells in mice in the course of Entamoeba histolytica infection by the strains. Mice weighing about l6 gm were used for three experimental groups; control, sham infection and experimental. The experimental group was infected with Entamoeba histolytica trophozoites directly into cecum by laparotomy. Strains isolated from three hepatic amoebic abscess cases were used. Mesenteric samples from the region of terminal ileum were fixed in methyl alcohol and stained with Pugh's solution. The ulcers in cecum were examined. Changes in number and structure of mesenteric mast cells and blood eosinophils were as follows. The number of mast cell in mesenteric tissues of the infected group increased from first day of the infection and persisted up to 34th day of the observation period. Degranulation and disruption of mast cells increased in the infected group compared with groups of the sham operation and the contro1, but showed no difference by the strains of Entamoeba histolytica. The blood eosinophilia was observed in the infected group and persisted until the observation period. Ulcers in cecum were found in all the infected groups. The results above indicate that mast cells are keenly related with the course of Entamoeba histolytica infection.
parasitology-protozoa- Entamoeba histolytica ; mast cell ; pathology ; mouse ; amoebiasis ; cecum

There has been growing interest regarding the 'medical humanities' in most medical schools in Korea. Medical humanities is an interdisciplinary field of humanities, social science, and the arts that aims to have a critical or supplementary role in medical education and practice. Thus, diverse educational methods should be applied to achieve the goals of medical humanities. The illness narrative is one of the most powerful tools in this context. An illness narrative is a patient's story about his illness, including the meaning of the illness in his life. The illness narrative is widely accepted as an effective educational tool in medical humanities. But, in Korea, there has been concern about the nature, theoretical background, and usefulness of the illness narrative. Medical students and doctors can obtain empathy and clinical wisdom through telling, hearing, reading, and writing illness narratives. In this article, I will examine the nature and meaning of illness narratives in teaching medical humanities and discuss several examples of narrative training programs.
Education, Medical ; Empathy ; Hearing ; Humanities ; Humans ; Korea ; Narration ; Schools, Medical ; Social Sciences ; Students, Medical ; Writing

This paper explores historical backgrounds and contents of Treatise on Medicine written by King Sejo (r.1455-1468) including his views on traditional medicine and pharmacy in the early Chosen period. The Treatise declared by King Sejo in 1463 has been considered as an important and unique manual of medicine because it was the exclusive example written by the king of Chosen. It was the King Sejo's era when the medical milieu in both social and medical aspects was highly encouraged thanks to the previous achievements by King Sejong the Great (r.1418-1450). King Sejo, in particular, who was much interested in practical learning called 'Miscellaneous Studies' emphasized on court medicine. His writing can be understood in such historical frame. Another reason why he wrote the Treatise can be said that he felt necessary for establishing the medical ethic codes for inefficient court medicine-officials. In personal background, he tried to find available remedies since he had been suffered from some chronic diseases. The contents of the Treatise can be broadly fallen to the clinical and ethical aspects, In the former one, the Treatise focuses on treatment without hesitation through the sharp and exact diagnosis by medical doctors. In the latter one, eight categories of medical doctors are discussed according to their moral degrees, sim'eui, sik'eui, yak'eui, hon'eui, kwang'eui, mang'eui, sa'eui, and sal'eui. Finally, musim'ji-eui was supplemented. Among them, sal'eui, medicine-official laking both medical ability and ethical attitude, was classified as the lowest degree, sim'eui, medicine-official sincerely making his all efforts for patients, was thought to be a paragon of medical morality. In conclusion, the Treatise on Medicine by King Sejo played an important role as a manual for the principle of medical practice and for the instruction to enhance ethical attitude among medicine-officials.
English Abstract ; *Famous Persons ; History of Medicine, 15th Cent. ; History of Medicine, Early Modern ; Korea ; *Medicine ; State Medicine/*history ; Textbooks/*history

Background: This study was designed to determine whether presynaptic receptor blockade could be differentiated from postsynaptic receptor blockade by examining the effect of increasing frequencies of indirect stimulation on partial twitch depression in vitro rat phrenic nerve hemidiaphragm preparations. Methods: After isolating rat phrenic nerve hemidiaphragm preparation, T200/T1 ratio (twitch height of the 200th stimuli divided by that of the 1st stimuli) at frequencies of 0.2, 0.5, 1.0, and 2.0 Hz using a drug concentration which provided approximately 20% twitch depression at 0.1 Hz was calculated. To compare T200/T1 ratios with TOF ratios, 2.0 Hz TOF response was measured immediately after 200th stimuli at either frequency of stimulation. Results: Hexamethonium caused a marked decrease in T200/T1 ratio at 0.5~2.0 Hz of stimulation, whereas alpha-bungarotoxin caused no change in T200/T1 ratios at up to 2.0 Hz of stimulation. The T200/T1 ratios produced by d-tubocurarine, vecuronium, mivacurium, and rocuronium located intermediate between alpha-bungarotoxin and hexamethonium, however significant differences among four drugs were found at 2.0 Hz. The propensity for decrease in T200/T1 ratios at 2.0 Hz might differ from this study: hexamethonium >d-tubocurarine >rocuronium >mivacurium = vecuronium >alpha-bungarotoxin. T200/T1 ratios at 2.0 Hz were not different from TOF ratios. Conclusions: When the observed effects in this study were provided with result of alpha-bungarotoxin acting predominantly at postsynaptic receptors and hexamethonium acting predominantly at presynaptic receptors, the effects of nondepolarizing muscle relaxants at each binding site could be differentiated by examining the T200/T1 ratios at 2.0 Hz.
Animals ; Binding Sites ; Bungarotoxins ; Depression* ; Hexamethonium ; Phrenic Nerve* ; Rats* ; Receptors, Presynaptic ; Tubocurarine ; Vecuronium Bromide

The retraction of anterior teeth could be performed more easier by inducing of skeletal anchorage system rather than by conventional method on orthodontic treatment. But, we wonder how effective the system draws well without anchorage loss and draws anterior teeth aside posteriorly, and if the system can reduce the time, in comparison with the anchorage of posterior teeth. For that reason we have studied on the subject of patients, who were required the maximum anchorage on orthodontic treatment and the cases without crowding. The subjects of the experimental group are 35 areas of 20 people who were inserted miniscrews after Mx or Mn 1st premolar extracted. Also, the subjects of the control group are 81 areas of 45 people who were not inserted miniscrews. Compared the anchorage loss of experimental group with control one, we could get the result that the anchorage loss of experimental group is 1.034+/-0.891mm and control group is 2.790+/-1.882mm(P<0.01). Compared the space closing time of experimental group with control one, we could get the result that the space closing time of experimental group is 369.40+/-110.81days and control group is 406.56+/-231.63days. But the result of comparing space closing time has no significance in statistics. We recognized that the experimental group is more faster than the control group in the canine retraction velocity from the result ; the speed of a experimental group has as much as 0.60+/-0.23mm/30days while the speed of a control group has 0.44+/-0.35mm/30days(P<0.05). So, we could convince that orthodontic miniscrew is used effectively in the cases required the maximum anchorage.
Bicuspid ; Crowding ; Humans ; Tooth*

Heterotopic ossification in abdominal incision is a rare post-surgical sequala and a subtype of myositis ossificans traumatica. Recognition of this rare condition is important because it may be misinterpreted as a retained foreign body or incisional neoplastic recurrence. We report a case involving a 59-year-old man who presented with a palpable epigastric mass and pronounced fatigability.
Foreign Bodies ; Humans ; Middle Aged ; Myositis ; Myositis Ossificans ; Ossification, Heterotopic* ; Recurrence

Until recently edrophonium has not been used in clinical anesthesis because of its short duration of action and poor anticholinesterase activity. However there has been a renewed interest in the use of edrophonium for the reversal of the new intermediate acting relaxants, vecuronium and atracurium, which have a fast spontaneous recovery rate. Edrophonim in sufficient dosages may produce a fast onset of antagonism of non-depolarizing neuromuscular blockade with minimal muscarinic side effects. The porpose of this study was therefore to compare the efficiency of edrophonium and neostigmine in reversal of a profound neuromuscular blockad following continuous infusion of vecuronium (0.06 mg/kg/hr). Recovery of T1 and T4 twitch height, change of heart rate and mean arterial pressure were obsered after antagonism with control mixture group (n=10): neostigmine 0.04mg/kg and atropin 0.02 mg/kg, and experimental mixture group (n=9): edrophoninm 0.5mg/kg and atropine 0.007 mg/kg were evaluated respectively at the 10% spontaneous recovery of T1 twitch height. Recovery of T1 was more faster in the edrophonium group than in the neostigmine group but it was significant until 5 minutes after antagonism (p<0.05) and recovery of T4 was also significantly faster in the edrophonium group until 5 minutes after antagonism but thereafter, conversly faster in the neostigmine group than in the edrophonium(p<0.05). Changes of heart rate with +/-5% after edrophonium administration were observed. We conclude that edrophonium provides a more rapid antagonism within 5 minutes after antagonizing vecuronium infusion, and small change in heart rate, but no other any advantage in using edrophomine instead of neostigmine for reversal after 5 minutes.
Arterial Pressure ; Atracurium ; Atropine ; Edrophonium* ; Heart Rate ; Neostigmine* ; Neuromuscular Blockade ; Vecuronium Bromide*

We recently observed a pancreatic islet cell adenoma with nesidioblastosis in a neonate which was confirmed after subtotal pancreatectomy. A nesidioblastosis, a term coined by Laidlaw in 1938 to describe the neoformation of islet tissue by differentiation of tortipotent pancreatic duct cell, is extremely rare as a cause of neonatal hypoglycemia. Persistent hypoglycemia which was temporarily responsive to hypertonic glucose therapy, convulsion, and apnea were noted frequently. Blood insulin level was elevated inappropriately with respect to the blood glucose level. Preoperative CBC, urinslysis, chest X-ray, serum electrolytes, and ECG were normal except low blood glucose leve(21mg%). The patient was not permedicated. With infusion of 15% D/W, anesthesia was induced by tracheal intubation with 3mg/kg of succinylcholine and was maintained by controlled ventilation with O2(3L/min)-N2O(3L/min)-halothane(1%) and pancuronium. Hyperglycemia and hypoinsulinemia were developed after pancreatectomy, these were controlled satisfactorily by administration of regular insulin. The patient was discharged with normal blood glucose level and no requirement of insulin at 38 days of postoperation.
Adenoma ; Anesthesia ; Apnea ; Blood Glucose ; Electrocardiography ; Electrolytes ; Glucose ; Humans ; Hyperglycemia ; Hypoglycemia ; Infant, Newborn* ; Insulin ; Intubation ; Islets of Langerhans ; Nesidioblastosis* ; Numismatics ; Pancreatectomy ; Pancreatic Ducts ; Pancuronium ; Seizures ; Succinylcholine ; Thorax ; Ventilation

Primary branchiogenic carcinoma is a rare malignant tumor resulting from the malignant transformation of a branchial cleft cyst. In the case we describe, CT scanning and ultrasonography demonstrated the characteristic findings of a second branchial cleft cyst located in the anterior triangle of the neck, along the anterior margin of the sternocleidomastoid muscle. This lesion presented as a well-defined cystic mass with a thick irregular inner wall and central septa, and associated multiple neighboring necrotic lymph nodes. Microscopic examination revealed a transition zone from squamous epithelium to squamous cell carcinoma.
Branchial Region ; Branchioma ; Carcinoma, Squamous Cell* ; Epithelium ; Lymph Nodes ; Neck ; Tomography, X-Ray Computed ; Ultrasonography