1.Experimental Study on Tissue Mast Cell Change of Ratskin Elicited by Mechanical Irritation Under General and Local Ansthesia.
Korean Journal of Dermatology 1972;10(1):11-22
Normal albino rats weighing 180-200 gm were used for a series of this investigation on change of skin mast cell under general and local anesthesia. At first, left side abdominal skin was prepared by hair cutting with scissors about 3cm square and eight irritations by mean of biting with tip of forceps mosquito were applied along the prepared skin margin. Skin specimens were submitted from central area which surrounded by irritated points and also from intact contra-lateral area in 15, 30, 60 and l20 minutes invervals. Submiitted skin specimens were fixed in 10% formalin solution, then were stained with 1% toluidine blue. The number of mast cell was counted under 450X of microscopic examination. CONCLUSION l. There were two stages in changes of skin tissue mast cell number on normal saline solution injected area and irritated area by mean of biting with tip of forceps without any types of anesthesia. i) Decreasing stage: Number of skin tissue mast cell was decreascd and reached to the lowest level at 30 minutes after each irritation. ii) Increasing stage: Number of skin tissue mast cell was increased to the highest level at 120 minutes after each irritation. 2. General ether anesthesia could not infIuence on the change of mast cell number after mechanical biting irritation. 3, Local anesthesia with 2% procaine hydrochloride solution revealed slightly suppressing effect to increasing number of mast cell at 60 and 120 minutes after mechanical irritation. Hnwever, it was not evidence at 15 and 30 minutes after mechanical irritation. 4. There was no significant change of rnast cell number in the intact contralateraI skin area within 120 minutes under gencral and local anesthesia. 5. The number of degranulated mast cells did not correlated with counted total number of mast cells.
Anesthesia
;
Anesthesia, Local
;
Animals
;
Cell Count
;
Culicidae
;
Ether
;
Formaldehyde
;
Hair
;
Mast Cells*
;
Procaine
;
Rats
;
Skin
;
Sodium Chloride
;
Surgical Instruments
;
Tolonium Chloride
2.131I-MIBG scintigraphy in the evaluation of suspected pheochromocy-toma.
Sei Jung OH ; Hyung Sik YOO ; Chang Yun PARK ; So Jin LEE
Korean Journal of Nuclear Medicine 1992;26(2):365-370
No abstract available.
Radionuclide Imaging*
3.Ultrasonographic pseudokidney sign in gastrointestinal diseases
Jong Doo LEE ; Jeong Hee PARK ; Hyung Sik YOO ; Ki Whang KIM ; Chang Yun PARK
Journal of the Korean Radiological Society 1982;18(2):333-339
A characteristic sonographic pattern that suggest a bowel lesion, called "Pseudokidney Sign" because itresembles the ultrasonic appearance of the kidney
Barium
;
Gastrointestinal Diseases
;
Kidney
;
Mucous Membrane
;
Mucus
;
Neoplasm Metastasis
;
Ultrasonics
;
Ultrasonography
4.Radiological aspect of pancreatic pseudocysts
Tae Sub CHUNG ; Sue Jin LIM ; Hyung Sik YOO ; Jung Ho SUH ; Chang Yun PARK
Journal of the Korean Radiological Society 1982;18(2):306-315
Pancreatic pseudocyst occurs as a complication of pancreatitis or trauma, which results in the escape of pancreatic enzymes from the parenchyma or ductal system of pancreas. At that time, serum amylase may have returned to normal level, and the patient may be subjectively asymptomatic. In this phase, the radiologic findings are relatively greater significance than laboratory data. In the conventional radiologic study, pancreatic pseudocyst have been frequently confused with other retroperitoneal mass, but recently with clinical application of ultrasound and CT scan, more accurate diagnosis can be obtained. The brief results are as follows; 1. Male to female ratio was 3:2 in 15 patients. Incidence was most common in young adult age. Most frequent symptom was epigastic pain, and which was noted in 11 cases of patients. 7 cases of patients had past history of abdominal trauma and past history of pancreatitis was only in 1 case. Most common laboratory finding was leukocytosis in 8cases of patients and elevated serum amylase was also noted in 7 cases. 2. In each 5 cases of patients, plain chest roentgenologic evidence of left side pleural effusion and hemidiaphragm elevation were observed. 3. On flat abdomen film, soft mass shadow was visualized in 8 cases of patients. On UGI series, evidence of retrogastric space widening was observed in 11 cases of patients. 4. The location of pseudocyst is mainly in body and tail of pancrease in 11 cases of patients. 5. More accruable diagnosis can be obtained through application of ultrasound and CT scan.
Abdomen
;
Amylases
;
Diagnosis
;
Female
;
Humans
;
Incidence
;
Leukocytosis
;
Male
;
Pancreas
;
Pancreatic Pseudocyst
;
Pancreatitis
;
Pancrelipase
;
Pleural Effusion
;
Tail
;
Thorax
;
Tomography, X-Ray Computed
;
Ultrasonography
;
United Nations
;
Young Adult
5.Ultrasonographic findings of pelvic masses
Youn Jin KIM ; In Soo HONG ; Hyung Sik YOO ; Chang Yun PARK
Journal of the Korean Radiological Society 1982;18(3):610-617
Ultrasonography affords an accurate assessment of the presence, size, location and internal consistency of apelvic mass. We present our experience of 105 cases of pelvic masses in female patients by ultrasonography, andthe results are as described; 1. Ultrasonography is nonspecific, however, the possibility of mucinous cystadenomaof ovary, teratoma(dermoid cyst), uterine leiomyoma and trophoblastic disease can be suggested due to theircharacteristic internal consistency. 2. This smooth internal septation seen within mucinous cystadenoma, eccentricsolidmural component of dermoid cyst, enlarged uterine wall with lobulated outer margin of leiomyoma, andyesicular appearance of trophoblastic disease were the specific sonographic features. 3. Loculated ascites and hydronephrosis were identified with malignant ovarian neoplasm and pelvic metastasis. 4. Accurate ultrasonographicdiagnosis was made in 88 cases (83.7%) and it may be improved with clinical history of the mass in question.
Ascites
;
Cystadenoma, Mucinous
;
Dermoid Cyst
;
Female
;
Humans
;
Hydronephrosis
;
Leiomyoma
;
Mucins
;
Neoplasm Metastasis
;
Ovarian Neoplasms
;
Ovary
;
Trophoblasts
;
Ultrasonography
6.Evaluation of radionuclide testicular scan
Nam Yoon HUH ; Youn Jin KIM ; Hyung Sik YOO ; Chang Yun PARK
Journal of the Korean Radiological Society 1983;19(2):441-448
There has been no adequate diagnostic method for the diagnosis of intrascrotal lesions until recent days. Butafter the development of radionuclide testicular scan, early and relatively accurate diagnosis of the testicularlesions are possible. So the authors analyzed the 32 cases of patients who were examined by testicular scan andconfirmed by follow up study or operation, and the results are as follows; 1. These 32 cases consists of 13 casesod epididymitis, 7 cases of testicular torsion, 4 of cryptorchism, 2 of testicular tumor and etc. The over alldiagnostic accuracy is about 69%. 2. In epididymitis, the diagnostic accuracy is 85%(11/13) and the findings ofscan are increased perfusion in radionuclide angiogram and hot activity noted mainly in peripheral portion of thetesticle in static image. 3. In cases o testicular torsion, diagnostic accuracy is 86%(6/7). Acute torsion showsnormal perfusion in angiogram and round cold area instatic image. But in missed torsion, perfusion is increasedand round cold area wit surrounding hyperemia is noted in static image. Radionuclide testicular scan seems to benoninvasive, inexpensive, easily available and simple to perform with low gonadal radiation dose. So it can bevery useful as the first study in patients with acute testicular symptoms.
Cryptorchidism
;
Diagnosis
;
Epididymitis
;
Follow-Up Studies
;
Gonads
;
Humans
;
Hyperemia
;
Male
;
Methods
;
Perfusion
;
Spermatic Cord Torsion
7.Transcatheter hepatic artery embolization of liver cancer
Jong Tae LEE ; Hyung Sik YOO ; Jung Ho SUH ; Heun Yung YUN
Journal of the Korean Radiological Society 1985;21(6):849-857
From March 1985 to Sep.1985, Transcatheter hepatic arterial embolization was perfromed in 17 primary heptomaand 8 metstasis of liver in Department of Radiology, Yonsei University College of Medicine. Metastatic cancers ofliver were one nasopharyngeal cancer, one small bowel leiomyosarcoma, one gall bladder cancer and 5 colon cancers.The used embolization materials were the followings: Gelfoam particles for one primary hepatoma, 95% absoluteethanol for 4 patients, Ivalon(250-590micro m) for 19 patients and autologous blood clots for one metastasis, Theresults were summarized as the follows: 1. The devascularization of tumor vessels in post-emblization hepaticangiogram was complete in 6 primary hepatom and one metastasis and partial in 11 primary hepatoma and 7metastasis. 2. In the follow-up CT evaluation 3 to 4 weeks after embolization, well necrotic density was revealedin 8 primary hepatoma and one metastasis. 3. The complications were fever with higher than 38 degrees C(92%),abdominal pain (72%) and nausia or vomiting(40%). They were subsided wtihin one to 7 days after embolization. 4.In liver function study, sGOT and sGPT were elevated in 80% of total cases and returned to normal within 15 to 30days. LDH was variable. In 4 cases of absolute ethanol infusion, above liver enzymes were markedly elvated as 10times or more as normal range.
Alanine Transaminase
;
Aspartate Aminotransferases
;
Carcinoma, Hepatocellular
;
Colon
;
Ethanol
;
Fever
;
Follow-Up Studies
;
Gallbladder Neoplasms
;
Gelatin Sponge, Absorbable
;
Hepatic Artery
;
Humans
;
Leiomyosarcoma
;
Liver Neoplasms
;
Liver
;
Nasopharyngeal Neoplasms
;
Neoplasm Metastasis
;
Reference Values
8.Evaluation of abdominal trauma by computed tomography and ultrasonography
Do Yun LEE ; Sang Jin KIM ; Jong Tae LEE ; Hyung Sik YOO
Journal of the Korean Radiological Society 1986;22(3):392-397
Out of 75 patients who were admitted to our hospital because of abdominal trauma and were undergone theprocedures such as ultrasonography and/or CT scan within 24 hours of abdominal trauma due to suspected abdominalorgan injury. We analyzed the results of 38 patients who were confiremd of diagnosis by operation, follow-up CTscan or ultrasonography. 1. In the abdominal organ injury, solid organ injury consists of 8 cases of spleenlaceration, 1 of splenic subcapsular hematoma, 7 of hepatic laceration, 7 of pancreas laceration, 3 of renallaceration, and 3 of subcapsular hematoma of kidney. 2. In addition, there were 7 bowel and/or mesentericlaceration, 2 diaphragmatic hernia, and 1 urethral rupture. 3. 2 cases fo retroperitoneal hematoma and 1 case inwhich hemoperitoneum occurred without abdominal organ injury were confirmed by follow-up CT or ultrasonography. 4.In all of the 4 patients with multiple organ injury, pancreatic laceration was associated. 5. In abdominal traumapatients, ultrasonography or CT can be used to survey rapidly the entire abdomen for possible associated injury,and be of great help to clinicians in identifying the patients who need immediate surgery or in minimizing theincidence of unnecessary emergency abdominal exploration.
Abdomen
;
Diagnosis
;
Emergencies
;
Follow-Up Studies
;
Hematoma
;
Hemoperitoneum
;
Hernia, Diaphragmatic
;
Humans
;
Kidney
;
Lacerations
;
Pancreas
;
Rupture
;
Tomography, X-Ray Computed
;
Ultrasonography
9.The Observation of Complications after General Anesthesia .
Hee Koo YOO ; Yun Tak CHUNG ; Wan Sik KIM ; Dong Ho PARK
Korean Journal of Anesthesiology 1978;11(4):385-391
Recently, with the remarkable theoretical progress made in anesthesiology these years, reports are being made on the results of the study on the complications, minor or major, caused by previous general anesthesia. However, .the reports on incidence vary according to the reporters. According to Riding, the recent development of anesthesiology, anesthetic inatruments, knowledge of physiology, anesthetics, induction agents and muscle relaxants are said to have reduced the incidence of complications to a great extent. Riding, Gold and Dyrberg report that the factors capable of influencing the incidence of complication, in the post-operative period include age, sex, premedicants for anesthetics, inhalation method of anesthetics, time of anesthesia, muscle relaxant, use of induction agent, acid-base imbalance and developed knowledge of physioloy, operation site, mental state of patients before operation, general condition, anesthetic technique, and. adequate selection of medicine. Working for Department of Anesthesiology, Hanyang University, from October 1976 to August 1977, we selected, out of the patients who received general anesthesia, 523 males and 372 females, totalling 895, who showed no abnormal symptoms in their respiratory systems, circulatory systems and metabolic systems and observed the incidence of complication in the light of sex, age and operation site, the factors supposed to affect the incidence. An hour prior to the general anesthesia, the patients were given intramuscular injection with premedicants atropine 0. 01 mg per kg, Valium 0. 2 mg or Demerol 1 mg per kg of body weight. For induction of anesthesia, Epontol 10 mg per kg and succinylcholine 1 mg per kg of body weight were injected in the veins, then ventilation was made for a minute with mask and then endotracheal tubes were inserted. and then a minimum amount of air was injected. into the cuff of the endotracheal tube, and the ventilation was done in a semi-closed system. During the period of maintenance, anesthesia was administered in a semi-closed system with 0. 5~l. 0% halothane, 3 L/min of nitrous oxide, 2 L/min of oxygen; and if need be, muscle relaxant was injected into the vein. In case a nondenolarizing agent was used in the course of maintenance, atropine 0. 5~1. 0 mg and neostigmine 2.0 ~ 4.0 mg were injected into the vein for reversion at the recovery time. After the patient was completely recovered, the endotracheal tube was cautiously removed, so as not to give trauma to the throat. As for method of observations, 24 hours after the patient had recovered, we visited the patient in the ward, first observing the existence or nonexistence of incidence of minor complications, and then calculating the incidence by the distribution of sex, age and operation site. The outcome of the observation of the above results by statistics and by chi square test is as follows; 1) the incidence of complications after general anesthesia was high in females. 2) Age has not affected the incidence of complications. 3) The incidence of nausea was highest in the patients with abdominal operation. 4) The incidence of sore throat was highest in the head and neck patients. 5) The incidence of fever was highest in the abdomen patients. 6) The incidence of headache was highest in the head and neck patients.
Abdomen
;
Acid-Base Imbalance
;
Anesthesia
;
Anesthesia, General*
;
Anesthesiology
;
Anesthetics
;
Anesthetics, Inhalation
;
Atropine
;
Body Weight
;
Diazepam
;
Female
;
Fever
;
Halothane
;
Head
;
Headache
;
Humans
;
Incidence
;
Injections, Intramuscular
;
Male
;
Masks
;
Meperidine
;
Methods
;
Nausea
;
Neck
;
Neostigmine
;
Nitrous Oxide
;
Oxygen
;
Pharyngitis
;
Pharynx
;
Physiology
;
Propanidid
;
Respiratory System
;
Succinylcholine
;
Veins
;
Ventilation
10.A Study on Measurements of Retinal Blood Flow Using a Fluorescent Leukocyte Angiography.
Yun Sik YANG ; Yoo Kang KIM ; Jae Duck KIM
Journal of the Korean Ophthalmological Society 1996;37(2):284-292
This study was performed to develop a new method, fluorecent leukocyte angiography(FLAG), to measure retinal circulation. Fluorescein-stained leukocytes can be seen in all the retinal vessels during fluorescein angiography using Scanning Laser Ophthalmoscope(SLO FAG) and retinal blood flow can be measured by using leukocyte velocities in the retinal vessels. Methods were followings. Firstly, blood was withdrawn from vein, mixed with fluorescein(10%) and anticoagulant and then centrifuged. The yellowbrown coat layer containing fluorescin-stained leukocytes was selected and injected into the vein while performing SLO FAG. The image of FLAG displayed circulating hyperfluorescent leukocytes clearly in all retinal vessels, and allowed the measurement of leukocyte velocities. In conclusion, FLAG is a new method to measure blood flow in all the retinal vessels simultaneously and can be a useful tool for studying animal and human retinal circulation.
Angiography*
;
Animals
;
Fluorescein Angiography
;
Humans
;
Leukocytes*
;
Retinal Vessels
;
Retinaldehyde*
;
Veins