Pericardial defect is a rare congenital cardiac disorder. Most patients were asymptomatic but some patients with partial pericardial defect occasionally complain acute symptoms such as angina, syncope, rarely sudden cardiac death. So, differential diagnosis with other ischemic or structural heart disease is crucial in the management of such patients. But there is no consistently successful diagnostic method. In the past, artificial diagnostic pneumothorax was used to document the absence of pericardium. However, it is not easily accepted due to excess morbidity and failure rate. Recently, echocardiography and more often, computed tomography, magnetic resonance imaging are used to confirm the diagnosis. We experienced a 52 years old male patient with atypical chest pain, who was diagnosed as complete left pericardial defect with computed tomography.
Chest Pain ; Death, Sudden, Cardiac ; Diagnosis ; Diagnosis, Differential ; Echocardiography ; Heart Diseases ; Humans ; Magnetic Resonance Imaging ; Male ; Middle Aged ; Pericardium ; Pneumothorax ; Syncope

PURPOSE: This study was performed in order to compare unenhanced CT with diffusion-weighted, T2-weight-ed,and fast FLAIR MR imaging in the detection of hyperacute cerebral ischema induced in a dog and to deter-mine whichmodality first detected cerebral ischemia. MATERIALS AND METHODS: Experimental cerebral infarction was induced bythe occlusion of intracerebral arter-ies using embolic materials (polyvinyl-alcohol, 300 -6 00 micro) introducedthrough a microcatheter into the internal carotid artery of five dogs weighing 12 -20 kg. Serial CT and MR imageswere obtained at one hour intervals from one to five hours after occlusion, and were analyzed independently by tworadiologists. We assessed changes in attenuation, as seen on unenhanced CT and the signal intensity of the lesionon each MR image, and measured the contrast-to-noise ratio (CNR) of the lesions. RESULTS: Ischemic lesions weredetected on unenhanced CT 1 -3 hours after occlusion of cerebral arteries. In all dogs, the lesions were detectedearliest on diffusion-weighted images obtained at 1 hour. They were detect-ed on T2-weighted images at 3 -5 hoursand on fast FLAIR images of 2 -5 hours. The CNR of ischemic lesions increased gradually during the 5-hour period.It was highest on diffusion-weighted images, while on unen-hanced CT, T2-weighted, and fast FLAIR images it wassimilar. CONCLUSION: Hyperacute ischemic lesions were detected earliest on diffusion-weighted images, and earlieron unenhanced CT than on fast FLAIR or T2-weighted MR image.
Animals ; Brain Ischemia ; Carotid Artery, Internal ; Cerebral Arteries ; Cerebral Infarction* ; Dogs* ; Magnetic Resonance Imaging*

A 39-year-old hairdresser developed sodium bromate poisoning after drinking a cup of hair neutralizer in a suicide attempt. This is the first case of visual loss afteringestion of sodium bromate. Only few cases are as a cause of acute renal failure reported in medical literature. She presented 1 day later with anuria, required hemodialysis. Sensorineural hearing loss, often a characteristic finding, was developed.
Acute Kidney Injury* ; Adult ; Anuria ; Deafness* ; Drinking ; Hair ; Hearing Loss, Sensorineural ; Humans ; Poisoning* ; Renal Dialysis ; Sodium* ; Suicide

BACKGROUND: Nitrous oxide is a safe analgesics which has analgesic and sedative effects without loss of consciousness. The advantage of Nitrous oxide is that it has a rapid onset time and that we can modulate duration of its action. The purpose of this experiment is to obtain the safe and effective concentration of Nitrous oxide in Emergency Department as use of analgesics and sedative drugs. METHODS: Twenty volunteers were investigated according to double blind method. Nitrous oxide was administrated to volunteer subjects at different concentrations ; 33%, 50%, 67% each. Then we evaluated the Pain score, Blood pressure, Heart rate, Respiratory rate, Oxygen saturation and its side effects. RESULTS: Pain Score were 8.4+/-2.1 at 33%, 6.1+/-1.5 at 50%, and 3.65+/-2.2 at 67% of Nitrous oxide. Pain Score is decreased significantly following administration of Nitrous oxide at concentration of 50%, 67%(P<0.05). There was no difference between preadministration group and postadministration group. While no remarkable change in systolic blood pressure, heart rate, and oxygen saturation. Respiratory rate showed significant increase when 679o of Nitrous oxide was administrated. There was no side effect in administration of 33% of Nitrous oxide. When 50% of Nitrous oxide was administrated, there were dizziness 5(25%), paresthesia 2(10%), nausea 1(5%), palpitation 1(5%) and hyperethesia 1(5%). At 679o of Nitrous oxide, there were nausea 7(35%), dizziness 6(30%), paresthesia 5(25%), headache 5(25%), diplopia 2(10%), dysphoria 2(10%), salivation 1(5%), dyspnea 1(5%), nystagmus 1(5%), tinnitus 1(5%) and euphoria1 (5%). Incidence of side effect increased as the concentration of Nitrous oxide was increased. CONCLUSION: We can conclude that safe and effective concentration of Nitrous oxide is 50% as analgesics and sedative drugs in the emergency department.
Analgesics ; Blood Pressure ; Diplopia ; Dizziness ; Double-Blind Method ; Dyspnea ; Emergency Service, Hospital ; Headache ; Heart Rate ; Hemodynamics* ; Hypnotics and Sedatives ; Incidence ; Nausea ; Nitrous Oxide* ; Oxygen ; Paresthesia ; Respiratory Rate ; Salivation ; Tinnitus ; Unconsciousness ; Volunteers

PURPOSE: Gastrointestinal stromal tumors (GISTs) are of a mesenchymal origin, and they arise predominantly from the gastrointestinal tract. This study aims to aid the post operative management of GIST patients by analyzing the clinical and immunopathological features of recurrent GISTs. METHODS: We enrolled 98 GIST patients who had been operated on for their primary tumor from 1987 to 2001 at the Catholic Medical Center. Among them, 28 patients had clinical and radiological features that were proved to be recurrence, and the patients' survival rates were compared according to the treatment modalities. RESULTS: When the maximum length of tumor was shorter and the mitotic index lower, then these patients had higher disease free survival rates and lower recurrence rates. The Ki-67 negative group had lower recurrence rates than their Ki-67 positive counterparts. Recurrence was mostly observed as liver metastasis. The mean length of time to recur was 22.96 months. Fifteen patients received additional treatments such as surgery, chemotherapy and radiation therapy, but there was no significant difference in survival rates when they were compared to the 13 patients who did not receive further treatments. CONCLUSION: Of the patients diagnosed with GIST after surgery, those with worse prognostic factors, i.e. a bigger tumor size and higher mitotic index, require more meticulous surveillance for tumor recurrence, and especially for liver recurrence, which was the most common recurrence site, during the follow up exams. In addition, although there have not been any remarkably effective treatments for the recurrent GIST patients, further researches for new therapy such as STI-571 is mandated.
Disease-Free Survival ; Drug Therapy ; Follow-Up Studies ; Gastrointestinal Stromal Tumors* ; Gastrointestinal Tract ; Humans ; Imatinib Mesylate ; Liver ; Mitotic Index ; Neoplasm Metastasis ; Recurrence ; Survival Rate

PURPOSE: Campylobacter species are common causes of bacterial enteritis. There is limited knowledge on its prevalence and clinical features because of its fastidious culture conditions. The purpose of this study was to identify the clinical features of Campylobacter enteritis in children. METHODS: We obtained stool specimens from patients diagnosed with acute gastroenteritis in the Department of Pediatrics, Nowon Eulji Medical Center (NEMC) and identified the pathogens by performing cultures or polymerase chain reactions (PCR). We retrospectively reviewed the medical records of patients with Campylobacter enteritis at NEMC between January 2012 and December 2017. RESULTS: Overall, 123 patients were diagnosed with Campylobacter enteritis (60 by culture and PCR in EnterNet and 110 by multiplex PCR). The median (interquartile range [IQR]) age of patients was 12 years (IQR, 8 to 16 years). The disease occurred all year round, but 69.9% from June to September. Symptoms included diarrhea (97.6%), fever (96.7%), abdominal pain (94.3%), vomiting (37.4%), and headache (34.1%). Compared with other treatments, treatment with azithromycin was associated with a shorter hospitalization period (P<0.05). CONCLUSIONS: Campylobacter enteritis is common during summer and mostly infects adolescent patients. It causes severe abdominal pain and fever preceding the onset of diarrhea. Prompt diagnosis and appropriate use of antibiotics reduces the duration of the disease.
Abdominal Pain ; Adolescent ; Anti-Bacterial Agents ; Azithromycin ; Campylobacter ; Child ; Diagnosis ; Diarrhea ; Enteritis ; Fever ; Gastroenteritis ; Headache ; Hospitalization ; Humans ; Medical Records ; Pediatrics ; Polymerase Chain Reaction ; Prevalence ; Retrospective Studies ; Vomiting

OBJECTIVE: The aims of this study is to determine the influence of the imbalance between sympathetic and parasympathetic nervous input to colon transit control in spinal cord injured patients and the effect of the anticholinergic medication forneurogenic bladder on colon transit time. METHOD: Eighty-six patients with cervical and thoracic cord injury were enrolled. The colon transit time (CTT) accord ing to the severity and lesion of injury and also the administration routes of oxybutynin were compared by indepen dent t-test. RESULTS: Total CTT was 56.7 hours, with right CTT 16.9 hours, left CTT 21.3 hours and rectosigmoid CTT 18.5 hours. The rectosigmoid CTT of the patients with the lesion at T6 or below were prolonged than that of the patients with the lesion above T6 (p<0.05). According to administration route of oxybutynin, instillation group showed more shortened rectosigmoid CTT than oral route group (p<0.05). CONCLUSION: The imbalance between parasympathetic and sympathetic outflow from the spinal cord has play an im portant role in colon transit control of spinal cord injured patients. The management of neurogenic bowel and bladder considering colon transit time is needed for the effective management of spinal cord injured patients.
Autonomic Nervous System ; Colon* ; Humans ; Neurogenic Bowel ; Spinal Cord Injuries ; Spinal Cord* ; Sympathetic Nervous System* ; Urinary Bladder ; Urinary Bladder, Neurogenic

Malignant granular cell tumors (MGST) are extremely rare, high-grade sarcoma of schwann cell origin. They often metastasize and are associated with short survival. We described a patient with recurred MGST after wide marginal excision followed by chemotherapy. The histologic findings revealed relapsed MGST containing rich vascular structure. The patient was treated with sunitinib malate (50 mg/day) for three weeks. Because sunitinib malate has a potent antiangiogenic property, we surmised that it might be effective against this type of malignancy. However, he died due to progression of tumor after six weeks. Here, we report it along with the corresponding literature.
Granular Cell Tumor ; Humans ; Indoles ; Pyrroles ; Sarcoma

Uremic patients undergoing hemodialysis (HD) therapy are prone to develop encephalopathy, but the cause is often unclear. Clinical signs of encephalopathy in the uremic patient often overlap with several other affections causing neurological disorders. Chorea or hemichorea occurs very rare, when basal ganglia are injured in HD patients. We hereby report a case of hemichorea of unknown cause in a hemodialysis patients. A 57-year-old diabetic HD patient was presented with sudden onset of right hemichorea. We could not find causes of hemichorea such as hyperglycemia, hepatic failure, drug, hyponatremia, and thiamine deficiency. T1-weighted MRI demonstrated hyperintense lesion limited to the left basal ganglion. Hemichorea disappeared completely 6 months after the onset with support care.

Gastroesophageal reflux disease (GERD) is thought to be caused by an incompetent lower esophageal sphincter, either because of a chronic hypotonia or an increased frequency of transient lower esophageal sphincter relaxation. Thus, it seems paradoxical under nutcracker esophagus to consider gastroesophageal reflux as a possible diagnosis, particularly in the patient presenting with chest pain. Current therapy in nutcracker esophagus is aimed at reducing the high amplitude peristaltic contractions characteristic of this disorder. Treatment directed at reducing contraction can decrease lower esophageal sphincter pressure and may exacerbate gastroesophageal reflux. It is not easy to treat a case of nutcracker esophagus associated with GERD. We report a 38-year-old male with nutcracker esophagus associated with GERD who lost the diagnostic features of nutcracker esophagus after 6 week of antireflux therapy.
Adult ; Chest Pain ; Diagnosis ; Esophageal Motility Disorders* ; Esophageal Sphincter, Lower ; Gastroesophageal Reflux* ; Humans ; Male ; Manometry* ; Muscle Hypotonia ; Omeprazole* ; Relaxation