1.An Inhibitory Mechanism of Gastric Acid Secretion in Patients with Hyperthyroidism.
Hyeok Yil KWON ; Hyoung Jin PARK
Journal of Korean Society of Endocrinology 1997;12(3):410-420
BACKGROUND: Although hypochlorhydria, hypergastrinemia and antiparietal cell antibody have been well documented in the patients with hyperthyroidism, a cause of hypochlorhydria or hypergastrinemia is unknown at the present time. Therefore, in order to clarify an inhibitory mechansim of gastric acid secretion in the patients with hyperthyroidism, interrelationship among hypochlorhydria, hypergastrinemia and antiparietal cell antibody was investigated in this study. METHODS: The gastric secretory function, fasting and postprandial plasma concentrations of gastrin and titer of antiparietal cell antibody in the plasma were determined in the patients with hyperthyroidism and normal subjects. Immunoblot analysis was performed to identify the gastric membrane protein, a possible gastric antigen to antiparietal cell antibody. Using a immunocytochemical technique with electron microscopy, intracellular structure of the parietal cell reacted with antiparietal cell antibody was observed. RESULTS: The basal and pentagastrin-stimulated maximal acid output were reduced in the patients with hyperthyroidism. The fasting and postprandial plasma concentrations of gastrin were markedly elevated in the patients. The plasma gastrin concentration in the patients with the antiparietal cell antibody was higher than that of the norrnal subjects as well as the patients without the antibody not only in the fasting state but also in the postprandial state. However, the plasma gastrin concentration of the patients without the antiparietal cell antibody was elevated in the fasting state only. There was no difference in the gastrin content of the antral mucosa between the norrnal subjects and the patients. The antiparietal cell antibody was detected in 5 (38.5 %) out of 13 patients by using the indirect immunofluorescence method. Patient IgG dose-dependently inhibited rabbit gastric H (+),K (+)-ATPase activity. Among proteins of the rabbit gastric mucosa membrane, four high molecular weight proteins (91, 140, 170 and 210 K dalton) were reacted to the patient IgG. The patient IgG positive peroxidase-antiperoxidase (PAP) activity was electron microscopically detected on the intracellular cannalicular membrane of the parietal cell CONCLUSION: We conclude that hypochlorhydria and hypergastrinemia in the patients with hyperthyroidism are partially related to the antiparietal cell antibody and that the antigen to the antiparietal cell antibody may be H (+),K (+)-ATPase in the intracellular canalicular membrane of the parietal cell.
Achlorhydria
;
Fasting
;
Fluorescent Antibody Technique, Indirect
;
Gastric Acid*
;
Gastric Mucosa
;
Gastrins
;
Humans
;
Hyperthyroidism*
;
Immunoglobulin G
;
Membrane Proteins
;
Membranes
;
Microscopy, Electron
;
Molecular Weight
;
Mucous Membrane
;
Plasma
;
Rabeprazole
2.Conservative management of cervical pregnancy.
Tae Sik PARK ; Jong Hyeok KIM ; Byung Gi KIM ; Joong Shin PARK ; Seok Hyun KIM
Korean Journal of Obstetrics and Gynecology 1993;36(7):1700-1703
No abstract available.
Pregnancy*
3.A case of impetigo herpertiformis.
Hyeok Jin KWEON ; Kwang Young PARK ; Jae Kyung PARK ; Sang Won KIM ; Nan Hee KIM
Korean Journal of Dermatology 1991;29(5):653-657
No abstract available.
Impetigo*
4.Successful coronary stent retrieval from the ascending aorta using a gooseneck snare kit.
Ji Hun JANG ; Seong Ill WOO ; Dong Hyeok YANG ; Sang Don PARK ; Dae Hyeok KIM ; Sung Hee SHIN
The Korean Journal of Internal Medicine 2013;28(4):481-485
Coronary stent dislodgement is a rare complication of percutaneous coronary intervention. We report a case of stent dislodgement in the ascending thoracic aorta. The stent was mechanically distorted in the left circumflex artery (LCX) while being delivered to the proximal LCX lesion. The balloon catheter was withdrawn, but the stent with the guide wire was remained in the ascending thoracic aorta. The stent was unable to be retrieved into the guide catheter, as it was distorted. A goose neck snare was used successfully to catch the stent in the ascending thoracic aorta and retrieved the stent externally via the arterial sheath.
Angioplasty, Balloon, Coronary/*adverse effects/*instrumentation
;
*Aorta, Thoracic/radiography
;
Cardiac Catheterization/*adverse effects/*instrumentation
;
Coronary Angiography
;
Device Removal/*instrumentation
;
Foreign Bodies/etiology/radiography/*therapy
;
Humans
;
Male
;
Middle Aged
;
Radiography, Interventional
;
*Stents
;
Treatment Outcome
5.The Effect of Posterior Vitreous Detachment on Visual Prognosis in Branch Retinal Vein Occlusion.
Sang Hyeok LEE ; Young Hoon PARK ; Heung Sik LIM
Journal of the Korean Ophthalmological Society 2000;41(1):98-102
The common causes of visual loss in branch retinal vein occlusion[BRVO] have been reported as the macular edema, macular non-perfusion and the vitreous hemorrhage due to neovascularization.These factors have close relationship with the status of the posterior vitreous. The purpose of this study was to evaluate the factors of visual prognosis in BRVO and the relationship between visual prognosis and vitreomacular status.Fifty-two patients with branch retinal vein occlusion in the department of ophthalmology, Yeungnam University college of Medicine were included for vitreo macular examination.The eyes were classified as two groups, vitreomacular attachment[Group I]and posterior vitreous detachment[Group II]. The incidence of macular edema was significantly lower in eyes with group I [Fisher's exact Test:p<0.05].Final visual acuity was better than the initial visual acuity, regardless of the presence of posterior vitreous detachment [Paired t-test:p<0.01].Group I developed higher rate of neovascularization and vitreous hemorrhage, but statistical significance was not noted.
Humans
;
Incidence
;
Macular Edema
;
Ophthalmology
;
Prognosis*
;
Retinal Vein Occlusion*
;
Retinal Vein*
;
Retinaldehyde*
;
Visual Acuity
;
Vitreous Detachment*
;
Vitreous Hemorrhage
6.Prognostic Value of Vascular Endothelial Growth Factor(VEGF) in Resected Non-Small Cell Lung Cancer.
Hyeck Jae KO ; Jeong Hyun PARK ; Hyeok SHIM ; Sei Hoon YANG ; Eun Taik JEONG
Tuberculosis and Respiratory Diseases 2001;50(6):676-685
BACKGROUND: Angiogenesis is an essential component of tumor growth and metastasis, and the vascular endothelial growth factor (VEGF) is one of the most important angiogenic factors. Several solid tumors produce substantial amounts of VEGF, which stimulates proliferation and the migration of ednothelial cells, therby inducing neovasculization by a paracrine mechanism. To evaluate the prognostic roles of angiogenesis and VEGF expression in patients with non-small cell lung cancer, the relationship between VEGF expression in tumor tissues, the clinicopathologic features and the overall survival rate were analysed. METHODS: Sixty-nine resected primary non-small cell lung cancer specimens were evaluated. The pareffinembedded tumor tissues were stained by anti-VEGF polyclonal antibodies using an immunohistochemical method to assess VEGF expression. RESULTS: In Forty-one patients (59%), the VEGF antigen was expressed weakly in their tumor tissue, whereas in twenty-eight patients (41%) the VEGF antigen was expressed strongly. The median survival time of the weak VEGF expression group was 24 months, and that of the strong VEGF expression group was 19 months. The three year-survival rates were 35%, 33%, respectively. The survival difference between both groups was not statistically significnat. CONCLUSION: Although results were not statistically significant, the strong expression group tended to poorer prognosis than weak expression group.
Angiogenesis Inducing Agents
;
Antibodies
;
Carcinoma, Non-Small-Cell Lung*
;
Humans
;
Neoplasm Metastasis
;
Prognosis
;
Survival Rate
;
Vascular Endothelial Growth Factor A
7.Death by Subdural Hematoma with Metastatic Carcinoma of Unknown Origin: An Autopsy Case Report.
Hyun Jung LEE ; Kyung Bin KIM ; Jong Hyeok PARK ; Hongil HA
Korean Journal of Legal Medicine 2014;38(2):83-87
Dural metastasis associated with chronic subdural hematoma is very rare in patients with malignant neoplasms; it may be difficult to distinguish malignant neoplasms from chronic subdural hematoma. Chronic subdural hematoma is usually a late manifestation of malignant tumors, which contributes to the severity of the prognosis. The scans obtained by using magnetic resonance imaging or computed tomography may be misleading when a subdural hematoma masks the underlying tumor. Herein, we report a case of a subdural hematoma with dural metastasis of unknown origin in a 45-year-old woman; however, the neoplasm was not detected until autopsy.
Adenocarcinoma
;
Autopsy*
;
Female
;
Hematoma, Subdural*
;
Hematoma, Subdural, Chronic
;
Humans
;
Magnetic Resonance Imaging
;
Masks
;
Middle Aged
;
Neoplasm Metastasis
;
Prognosis
8.A Clinical Study to Reduce Post-appendectomy Complications.
Hyeok Soo PARK ; Myung Suk SIN ; Jin Kook KANG
Journal of the Korean Society of Coloproctology 1997;13(3):501-508
Infectious complications such as wound infection and intra-abdominal abscess are rarely fatal, but perplexing to both patients and surgeons, and still remain asserious problem after appendectomy in about 5% of the patients. To be helpful to reduce post-appendectomy complications, authors retrospectively analyzed 229 cases of appendectomy performed during the period of one year, from January 1 through December 31, 1995, to find out contributing factors to the post-appendectomy infectious complications such as wound infection or intra-abdominal abscess. The results were as follows. 1) Infectious complications are more common in patients with four or more days of symptom. 2) Infectious complications are more common in patients with complicated appendicitis such as gangrenous or perforated appendicitis. 3) Preoperative antibiotics are helpful to prevent infectious complications in cases of complicated appendicitis. 4) There is no difference in the incidence of infectious complications between the immediate operations and overnight delayed operations in patients who were admitted in the late evening or at night. 5) There is no difference in the incidence of infectious complications between operators: staff surgeons who exclusively operated on patients with complicated appendicitis and residents(with or without supervision of staff surgeons) who mostly operated on patients with simple appendicitis. This means technical superiority has its role in preventing infectious complications. Early diagnosis and operation before the gangrenous change or perforation are warranted. Preoperative antibiotics are effective in cases of complicated appendicitis, but not in cases of simple appendicitis. But the lack of objective criteria to decide complicated appendicitis before the operation remains problem, and prospective study to solve this problem is needed. Technical perfectness is required to protect the wound and to remove the appendix without contamination. Preventive measures are also important to prevent the infectious complications in cases of inevitably contaminated wounds or inta-abdominal spaces.
Abdominal Abscess
;
Anti-Bacterial Agents
;
Appendectomy
;
Appendicitis
;
Appendix
;
Early Diagnosis
;
Humans
;
Incidence
;
Organization and Administration
;
Retrospective Studies
;
Wound Infection
;
Wounds and Injuries
9.Forensic Analysis of the Cause of Death and Death on Arrival of Patients at the Emergency Room.
Jong Hyeok PARK ; Young Joo KIM ; Suk Hoon HAM ; Seok Ran YEOM ; Ryeok AHN ; Hongil HA
Korean Journal of Legal Medicine 2013;37(1):14-18
From January 2007 to June 2012, 55 autopsy cases were reviewed, in which death occurred outside the hospital and the patients were declared dead on arrival at the emergency departments, in order to compare the clinical and postmortem examination diagnoses of death-on-arrival patients in tertiary hospitals in Busan, Yangsan and Ulsan city. Of 22 non-traumatic deaths, 21 occurred from natural causes and 1 from unknown cause (sudden infant death syndrome, SIDS). Clinical diagnoses were cardiovascular diseases or "non-traumatic" / "unknown" while autopsy diagnoses were majorly cardiovascular diseases, especially coronary artery diseases (72.7%). Of 33 unnatural deaths, the cause of death was blunt trauma in 4 patients, sharp-force injury in 6, falling in 10, gunshot injury in 1, traffic accidents in 3, asphyxia in 2, drowning in 2, fire-related death in 1, and intoxication in 4. There were no definite discrepancies between clinical and autopsy diagnoses, except for 5 non-traumatic deaths and 2 unnatural deaths. These results suggest that the role of the emergency department may be crucial in postmortem investigations.
Accidents, Traffic
;
Asphyxia
;
Autopsy
;
Cardiovascular Diseases
;
Cause of Death
;
Coronary Artery Disease
;
Drowning
;
Emergencies
;
Humans
;
Infant
;
Tertiary Care Centers
10.Fatal Inhalation Injury by Sulfuric Acid Fumes: Case Report.
Gi Yeong HUH ; Hong Il HA ; Jong Hyeok PARK ; Seon Jung JANG
Korean Journal of Legal Medicine 2013;37(4):216-219
Sulfuric acid can cause local or systemic effects after exposure by inhalation, ingestion, or topical application. Direct ingestion is the main exposure route for fatal sulfuric acid injury. Fatal accidents involving the inhalation of toxic sulfuric acid vapors are rare. Inhalation of sulfuric acid fumes causes severe irritation or corrosive damage to the upper respiratory tract. Consequently, severe congestion, edema, and inflammation of the mucous membranes of the upper respiratory passages hinder the entry of air into the lungs, possibly leading to fatalities in victims. A 35-year-old man died at his home after complaining of a severe sore throat. One day earlier, he had worked in a sulfuric acid tank in a copper-smelting plant while wearing an ordinary gas mask that offered no protection against sulfurous acid vapors. Upon autopsy, the larynx and epiglottis showed pronounced edema, congestion, and inflammation that histologically mimicked an acute bacterial suppurative inflammation, accompanied by severe pulmonary edema. A field analysis of the air inside the sulfuric acid tank revealed SO4(2-) positivity and a 40% sulfuric acid concentration.
Adult
;
Autopsy
;
Eating
;
Edema
;
Epiglottis
;
Estrogens, Conjugated (USP)
;
Humans
;
Inflammation
;
Inhalation*
;
Larynx
;
Lung
;
Mucous Membrane
;
Pharyngitis
;
Plants
;
Pulmonary Edema
;
Respiratory Protective Devices
;
Respiratory System
;
Sulfur*
;
Sulfuric Acids