Journal of Yeungnam Medical Science

Byeong Ik Jang

6 Articles

The Significance of Small Polyp of colon in Koreans.: Soon Uk Kwon, Eun Ju Lee, Jong Ryul Eun, Sun Taek Choi, Hak Jun Lee, Byeong Ik Jang, Tae Nyeun Kim, Moon Kwan Chung; Yeungnam Univ J Med. 2000;17(1):39-48. Published online June 30, 2000; DOI: https://doi.org/10.12701/yujm.2000.17.1.39

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BACKGROUND
There are two theories in the development of colon cancer. One is the adenoma-carcinoma sequence theory and the other is the de novo cancer theory. Western countries believe in the adenoma-carcinoma sequence theory, however there are many recent reports from Japan about cancers developing from small adenomas. METHODS: The present study analyzed 408 polyps from 508 cases that were taken by colonoscopic polypectomy at the Departmant of Internal Medicine, Yeung-Nam University Hospital. RESULTS: The percentage of patients who have polyp was 41.3%(210cases out of 526cases) and the peak incidence was noted in patients in their 50's and 60's. There was no difference between the sexes, but we noted significant increase in the incidence of polyps in patients over age of thirty. We found 395 polyps below 1cm and 13 polyps above 1cm. Among 408 polyps, 5 cases cancerous polyps and 3 cases showed polyp size of less than 1cm each. The first case was a polyp of 0.4cm in size with elevated mucosa at the ascending colon. The second was 0.5cm in size with round elevation and hyperemic mucosa in the rectum. The third polyp was 0.6cm in size with tubular elevation at the hepatic flexure. CONCLUSIONS: colon polyp is common disease in Koreans. even small polyps can have cancer tissue, which should be removed if discovered during colonoscopy. We believe that not all colon cancer originates in the manner described by the adenoma-carcinoma sequence theory. However further studies with a larger sample population are needed to determine the exact role colon polyps plays in the development of colon cancer.

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Histologic discrepancy between endoscopic forceps biopsy and endoscopic mucosal resection specimens of colorectal polyp in actual clinical practice
Moon Joo Hwang, Kyeong Ok Kim, A Lim Kim, Si Hyung Lee, Byung Ik Jang, Tae Nyeun Kim
Intestinal Research.2018; 16(3): 475. CrossRef

The Effects of Nitric Oxide Inhibitor on Hyperdynamic Circulation in Portal Hypertensive Rats.: Pill Young Kim, Byeong Ik Jang, Tae Nyeun Kim, Moon Kwan Chung; Yeungnam Univ J Med. 1999;16(2):181-192. Published online December 31, 1999; DOI: https://doi.org/10.12701/yujm.1999.16.2.181

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Abstract PDF: BACKGROUND
Nitric oxide, a vasodilator synthesized from L-arginine by vascular endothelial cells. accounts for the biological activity of endothelium derived relaxing factor. Previous studies demonstrated that nitric oxide inhibitor. N'-Nitro-L-Arginine(NNA)diminished the hyperdynamic splanchnic and systemic circulation in portal hypertensive rats. The present study was done to determine the role of nitric oxide in the development of hyperdynamic circulations in the prehepatic portal hypertensive rat model produced by partial portal vein ligation. METHODS: The portal hypertensive rats were divided into water ingestion group and NNA ingestion group. After partial portal vein ligation. NNA ingestion group and water ingestion group received NNA, 1mg/kg/day and plain water through the mouth for 14 days, respectively. Cardiac output, mean arterial pressure, organ blood flow and porto-systemic shunting were measured by radioisotope microsphere methods. Vascular resistances were calculated by standard equation. RESULTS: There were significant decreases in mean arterial pressure, increases in cardiac output and cardiac index, and decreases in total systemic and splanchnic vascular resistance in portal hypertensive rats compared to normal control froup(p<0.01). Compared to the water ingestion group, significantly increased mean arterial pressure wit decreased cardiac output and cardiac index were dexeloped in the NNA ingestion group. Total systemic and splanchnic vascular resistance were significantly increased in the NNA ingestion group compared to water ingestion group(p<0.05). But, there was no significant difference in portal pressure between the two groups. CONCLUSION: The hemodynamic results of this study indicate that hyperdynamic circulation in prehepatic portal hypertensive rat model was attenuated by ingestion of NNA. Nitric oxide may play an important role in the development of hyperdynamic circulation with splanchnic vaodilation in chronic portal hypertension.

A Case of Plummer-Vinson Syndrome.: Kyeong Jin Jeon, Byeong Ik Jang, Tae Nyeun Kim, Moon Kwan Chung, Hyun Woo Lee; Yeungnam Univ J Med. 1994;11(2):381-387. Published online December 31, 1994; DOI: https://doi.org/10.12701/yujm.1994.11.2.381

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Abstract PDF: Plummer-Vinson syndrome is a clinical entity characterized by dysphagia, iron deficiency anemia, cheilosis, glossitis, and cervical esophageal web, especially in middle aged women. Recently, the authors experienced a case of Plummer-Vinson syndrome. A 53-year-old female was admitted due to intermittent solid food dysphagia for 18 months. She had a 2 years history of iron deficiency anemia. On admission glossitis, fissures at the angle of the mouth, spoon nails, and iron deficiency anemia were noted. Esophagogram and esophagoscopic examination revealed thin walled concentric web at upper esophagus. Esophageal web was succefully teared by endoscopic balloon dilatation with subseguant improvement of dysphagia. Skin manifestations as well as anemia were markedly improved after oral iron replacement therapy.

Comparision of signal - averaged electrocardiography (SAECG) determined by flank lead system (FLS) and pyramidal lead system (PLS) in healthy young adults.: Byeong Ik Jang, Seung Ho Kang, Hyeung Il Kim, Dong Gu Sin, Young Jo Kim, Bong Sup Shim, Hyun Woo Lee; Yeungnam Univ J Med. 1993;10(1):179-189. Published online June 30, 1993; DOI: https://doi.org/10.12701/yujm.1993.10.1.179

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Abstract PDF: It has recently become possible to record electrical activity originationg from abnormally conducting myocardium from the body surface with high-gain amplification and averaging technique. These signals, which result from delayed ventricular activation(late potentials), have been recorded in patients with documented ventricular tachyarrythmia. Several electrode lead system for detecting ventricular late potential were introduced. Pyramidal electrode lead system(PLS) is useful. Also interpretation of SAECG in the young could be of value in detecting those at risk for episodic ventricular tachycardia, but suffer from a lack of data in normal young people. There was no difference between normal values, determined by FLS and PLS at high pass filtering of 25 Hz and 80 Hz, but significant, difference was found in HFLAD and RMS-40 of 40 Hz (p<0.05). These results will provide a basis for interpretations of SAECG, determined by FLS and PLS in healthy young adults with normal QRS duration. SELECTION OF SUBJECTS: For this study, normal healthy young adult volunteers (age : mean 24 years) were recruited from the medical students at Yeungnam University Hospital, Internal Medicine. Twenty fourths male and seventeenths female subjects were selected. All subjects had normal resting ECGs as judged from both the standard 12 channel lead and echocardiography, and none had a history of cardiovascular disease. All subjects were considered to be in good general physical condition. SIGNAL-AVERAGED ELECTROCARDIOGRAPHY: In order to obtain low noise recordings with a small number of averaging cycles, all subject ware asked to relax completely in the supine position. Silver/silver chloride electrodes were attached after the skin was cleaned with alcohol, to constitute classic flank lead system(FLS) and pyramidal lead system(PLS). Signals were recorded and processed using a commercially available microprocessor-augmented ECG cart(Marquette Electronics, USA) suitable for portable bedside recording.

Clinical observation of aortic dissection.: Byeong Ik Jang, Jin Ho Park, Dong Ku Shin, Yeoung Jo Kim, Bong Sup Shim, Hyun Woo Lee, Su Hyen Kim, Sung Sae Han; Yeungnam Univ J Med. 1992;9(2):334-341. Published online December 31, 1992; DOI: https://doi.org/10.12701/yujm.1992.9.2.334

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Abstract PDF: A clinical review of 34 cases of aortic dissection which were admitted to Yeungnam University hospital between March 1983 and April 1992. The results are as follows: 1. The peak incidence was in 5th, 6th decade and male to female ratio was 1.83:1. 2. The most common cause of aortic dissection was atherosclerosis and hypertension (79%). 3. The most common presenting symptom was pain (73%). but dyspnea, palpable mass, murmur, shock were also observed. 4. Abnormal electrocardiographic finding was myocardial ischemia in 6 cases, arrhythmia in 5 cases, LVH in 5 cases. 5. The X-ray findings showed abnormal aortic contour in 10 cases but normal X-ray finding was observed in 63% of DeBaKey Type III. 6. The most common diagnostic procedure was echocardiogram and abdominal Ultrasonography. 7. The mortality of all cases was 20%, operation mortality was 18% but no death of medically treatment in medical indication.

Clinical Observations of the Solitary Pulmonary Nodules.: Jin Woo Roh, Byeong Ik Jang, Jong Sun Park, Jin Hong Chung, Hyung Woo Lee, Kwan Ho Lee, Hyun Woo Lee, Jung Cheul Lee, Sung Sae Han; Yeungnam Univ J Med. 1990;7(2):141-149. Published online December 31, 1990; DOI: https://doi.org/10.12701/yujm.1990.7.2.141

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Abstract PDF: The authors conducted a clinical observation of 55 cases of solitary pulmonary nodules at Yeungnam University Hospital from June 1986 to October 1990, and the following results were obtained: 1. The age distribution was ranged from 18 to 77 years, and the male-to female ratio was 1.8:1. 2. Among 55 cases of nodules, 28 cases were benign and 27 cases were malignant nodules, and of malignant nodules, the primary lung cancer was 23 cases and of benign nodules, 18 cases were tuberculoma. 3. 23 cases (41.8%) was asymptomatic and the other 32 cases were symptomatic; chest pain 12 cases, hemoptysis; 8 cases, cough; 8 cases and dyspnea; 4 cases. 4. The non-smoker-to-smoker ratio was 1:1.04, but among 23 smoker over 20 pack years, 14 cases were malignant nodules. 5. According to nodular size, there is no striking differences between benign and malignant nodules except 3-4 cm sized nodules. 6. The lobar distribution of nodules, 35 cases were in the right lung (upper lobe; 14 cases, middle lobe; 11 cases, and lower lobe; 10 cases) and 23 cases were in the left lung (upper lobe; 9 cases, lower lobe; 11 cases), and the malignant nodules were most commonly observed in the right upper lung.

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