BACKGROUND: The purpose of this article was to identify the risk factors related to development of hemodynamically significant cardiac arrythmias in patients with mechanical ventilation. METHODS AND RESULTS: Holter recording and echocardiogram were performed after 30 minutes of ventilator initiation in patients on mechanical ventilation(MV) owing to respiratory failure(RF) from various reasons. From 68 patients, hemodynamically significant cardiac arrythmias were detected in 18 patients(26.5%). Initial mean arterial pressure, maximal heart rate, and initial pH were identified as risk factors for hemodynamically significant cardiac arrythmias. Additionally, the patients with pressure-controlled ventilation as an initial ventilatory mode developed hemodynamically significant cardiac arrythmias less frequently than the patients with other modes(15.8% vs. 40%, p=0.03). In multivariate analysis, initial mean arterial pressure(<70mmHg, odds ratio[OR]:5.5;95% confidence interval[CI]:1.2 to 24.2, p=0.026), maximal heart rate(>120/min, OR:19.7;95% CI:2.0 to 190.0, p=0.01), and pressure-controlled ventilation(OR:0.13,95% CI:0.03 to 0.55, p=0.006) were associated with the development of hemodynamically significant cardiac arrhythmias. CONCLUSION: Theses findings suggest that during the early stages of mechanical ventilation with acute respiratory failure, hemodynamically significant cardiac arrhythmias are directly associated with tachycardia(>120/min), initial MAP(<70mmHg), and, inversely, the initial use of pressure-controlled ventilation.
Arrhythmias, Cardiac* ; Arterial Pressure ; Heart ; Heart Rate ; Humans ; Hydrogen-Ion Concentration ; Multivariate Analysis ; Respiration, Artificial* ; Respiratory Insufficiency* ; Risk Factors* ; Ventilation ; Ventilators, Mechanical

Bleeding from esophageal or gastric varix is the most critical and life-threatening complication of portal hypertension and the most common cause of deaths in the patients with cirrhosis. In the management of variceal bleeding, the various therapeutic interventions including operation and nonoperative procedure were tried, but neither of management was successfully achieved. Between February 1992 and November 1994, we performed endoscopic injection sclerotherapy(EIS) in 35 cirrhotic patients who had recently bled from esophageal varices and had a past history of esophageal variceal bleeding in Chonbuk National Univesity Hospital. Among 35 patients, 32 were male and 3 were female. The underlying severity of liver disease was graded A, B or C according to modification of Child-Pugh classification. EIS was repeated every 1 week until the esophageal varices had been complete obliterated and removed. To investigate the effects of esophageal varix eradication by EIS on combined peri- cardial varix, endoscopic examinations were performed both before procedure and after complete EIS sessions and this study was performed to examine a changes of combined pericardial varices after EIS procedure for the treatment of esophageal varices bleeding secondary to portal hypertesion. We reviewed medical records and compared changes or sizes of pericardial varices before and after EIS procedure. Mean follow up peiod was 61 days. Total number of 162 EIS for variceal eradication were performed. Mean session for eradication of esophageal varices was 4.6 per person, mean amount of injected sclerosant was 8.3cc(1-18cc), mean duration of EIS was 39 days, and mean follow up was 62 days after complete EIS procedure. In total 162 EIS procedure, complications associated with EIS including substernal discomfort 53.7%(n=87), substernal chest pain 45.7%(n=74), fever 4.9%(n=8), dysphagia 14.2%(n=23) and pleural effusion 3.1%(n=5), were transient and not required specific management. During the follow-up period, complete disapperance of pericardial varix or reduction of size was appeared in l8 cases(51.4%) among total 35 patients. No significant changes of variceal size before and after procedure were l6 cases(45.7%) and only 1 case(2.9%) was more aggravated. So, these results suggest that EIS procedure of esophageal varix on pericardial varix seems either to improve or to maintain the severity of the pericardial gastric varix without aggravation.
Cause of Death ; Chest Pain ; Classification ; Deglutition Disorders ; Esophageal and Gastric Varices* ; Ethanolamine* ; Female ; Fever ; Fibrosis ; Follow-Up Studies ; Hemorrhage ; Humans ; Hypertension, Portal ; Jeollabuk-do ; Liver Diseases ; Male ; Medical Records ; Oleic Acid* ; Pleural Effusion ; Sclerotherapy* ; Varicose Veins

Bleeding from esophageal or gastric varix is the most critical and life-threatening complication of portal hypertension and the most common cause of deaths in the patients with cirrhosis. In the management of variceal bleeding, the various therapeutic interventions including operation and nonoperative procedure were tried, but neither of management was successfully achieved. Between February 1992 and November 1994, we performed endoscopic injection sclerotherapy(EIS) in 35 cirrhotic patients who had recently bled from esophageal varices and had a past history of esophageal variceal bleeding in Chonbuk National Univesity Hospital. Among 35 patients, 32 were male and 3 were female. The underlying severity of liver disease was graded A, B or C according to modification of Child-Pugh classification. EIS was repeated every 1 week until the esophageal varices had been complete obliterated and removed. To investigate the effects of esophageal varix eradication by EIS on combined peri- cardial varix, endoscopic examinations were performed both before procedure and after complete EIS sessions and this study was performed to examine a changes of combined pericardial varices after EIS procedure for the treatment of esophageal varices bleeding secondary to portal hypertesion. We reviewed medical records and compared changes or sizes of pericardial varices before and after EIS procedure. Mean follow up peiod was 61 days. Total number of 162 EIS for variceal eradication were performed. Mean session for eradication of esophageal varices was 4.6 per person, mean amount of injected sclerosant was 8.3cc(1-18cc), mean duration of EIS was 39 days, and mean follow up was 62 days after complete EIS procedure. In total 162 EIS procedure, complications associated with EIS including substernal discomfort 53.7%(n=87), substernal chest pain 45.7%(n=74), fever 4.9%(n=8), dysphagia 14.2%(n=23) and pleural effusion 3.1%(n=5), were transient and not required specific management. During the follow-up period, complete disapperance of pericardial varix or reduction of size was appeared in l8 cases(51.4%) among total 35 patients. No significant changes of variceal size before and after procedure were l6 cases(45.7%) and only 1 case(2.9%) was more aggravated. So, these results suggest that EIS procedure of esophageal varix on pericardial varix seems either to improve or to maintain the severity of the pericardial gastric varix without aggravation.
Cause of Death ; Chest Pain ; Classification ; Deglutition Disorders ; Esophageal and Gastric Varices* ; Ethanolamine* ; Female ; Fever ; Fibrosis ; Follow-Up Studies ; Hemorrhage ; Humans ; Hypertension, Portal ; Jeollabuk-do ; Liver Diseases ; Male ; Medical Records ; Oleic Acid* ; Pleural Effusion ; Sclerotherapy* ; Varicose Veins

No abstract available.
Hip* ; Pyomyositis*

BACKGROUND: Estrogens act on estrogen receptors distributed in articular cartilages, synovial membrane, and ligaments, which are thought to be related with degenerative changes. Meanwhile, progesterone is known to have a weak anabolic action on bone formation This study evaluates the effects of estrogen and progesterone hormone on bone/cartilage turnover in ovariectomized (OVX) rats. METHODS: Thirty-five 7-month-old female Sprague-Dawley rats were randomly divided into 5 groups and then ovariectomized bilaterally except the sham control group. The first and the second group acting as controls did not receive hormonal therapy, the third group received estrogen, the fourth group received progesterone, and the fifth group received combination of both hormones 10 weeks after surgery. Evaluations were done using the serum levels of cartilage oligomeric matrix protein (COMP) for cartilage turnover, collagen type I C-telopeptide (CTX-1) and osteocalcin (OC) for bone turnover at 11, 15, 19 weeks after OVX and histology using the Osteoarthritis Research Society International (OARSI) osteoarthritis (OA) cartilage histopathology assessment system. RESULTS: Significantly less cartilage degradation (decreased levels of COMP) was found in the combined hormone treated group in comparison with OVX group. Similarly, both hormonal treatment resulted in increased bone formation and decreased bone resorption i.e., a low overall bone turnover status (decrease in the serum OC and CTX-1 levels). CONCLUSIONS: Combined estrogen and progesterone therapy was found to be convincing in terms of reducing the severity of OA in this experimental model.
Animals ; Biological Markers/blood/metabolism ; Bone Remodeling/*drug effects ; Bone and Bones/chemistry/drug effects ; Cartilage/chemistry/*drug effects ; Collagen Type I/blood/metabolism ; Disease Models, Animal ; Estrogens/*pharmacology ; Extracellular Matrix Proteins/blood/metabolism ; Female ; Glycoproteins/blood/metabolism ; Histocytochemistry ; Hormone Replacement Therapy/*methods ; Osteoarthritis/blood/*drug therapy ; Osteocalcin/blood/metabolism ; Ovariectomy ; Progesterone/*pharmacology ; Rats ; Rats, Sprague-Dawley

Focal nodular hyperplasia (FNH) is a rare, benign hepatic tumor which was usually discovered incidentally by imaging procedure performed for some other reasons. FNH is typically asymptomatic and, it seldom bleeds. There is no evidence to support any relation with primary liver cancer. Accordingly, the preferred management is conservative, and excision is reserved for large symptomatic and complicated lesion, or when the diagnosis remains uncertain. Although many cases of FNH has been described to date in the other countries, only four cases of FNH has been reported in Korean literature. In the present report we describe a 7 cm sized asymptomatic lesion of FNH in a 23-year-old woman, that was disclosed by various kinds of imaging procedure. The left lateral segmentectomy was performed. The mass was firm and showed areas of localized growth of mature hepatocytes and septal fibrosis accompanied with marginal ductal proliferation, consistent with FNH. It also displayed an incomplete stellate architectual configration consisted of a central fibrous scar.
Cicatrix ; Diagnosis ; Female ; Fibrosis ; Focal Nodular Hyperplasia* ; Hepatocytes ; Humans ; Liver Neoplasms ; Liver* ; Mastectomy, Segmental ; Young Adult

PURPOSE: Inaccurate femoral canal shaping can result in post-operative complications in hip arthroplasty. We addressed the amount of broach rotation during shaping of the femoral canal and compared it with respect to newly designed broaches which were modified to minimize the rotation. MATERIALS AND METHOD: we designed the broaches that had canal guide which restricts the broach motion such that it is always aligned with the femoral axis while the broach machines the metaphyseal bone. Conventional broaches and the modified broach applied to 5 pair of fresh-frozen cadaver femurs and its spatial motion was measured with motion tracker. Rotations in coronal, saggital and frontal plane during the final 10 mm of broach advance were measured. RESULTS: 2.4..of axial rotation was occurred during final 10 mm advance of broach in the conventional method, which was the largest component of the rotation. Rotation of the broach during machining was decreased to 37% (p=0.075) and 25% (p=0.042) in the sagittal plane and coronal plane, respectively, by proposed method. CONCLUSION: The canal guide in the proposed method significantly reduced the rotation of the broach without any extra incision or measurement devices, resulting in increased accuracy in the femoral canal shaping.
Arthroplasty ; Axis, Cervical Vertebra ; Cadaver ; Femur ; Hip

Cholangiocarcinoma is a form of adenocarcinoma arising from the intrahepatic or extrahepatic biliary epithelium. Apparent predisposing factors include some chronic hepatobiliary parasitic infsttations, congenital anomalies with ectatic ducts, sclerosing cholangitis and chronic ulcerative colitis and occupational exposure to possible biliary tract carcinogens. Patients with cholangiocarcinoma usually present with biliary obstruction, painless jaundice, pruritus, weight loss and acholic stools. Because the obstructing process is gradua1, the cholangiocarcinoma is often far advanced by the time it presents clinically. The diagnosis is most frequently made by cholangiography following ultrasound demonstration of dilated intrahepatic bile ducts. We report a case of common bile duct cancer spreading to gallbladder and common hepatic duct along the biliary mucosal epitherium and submucosal tissue in 68-year-old female patient along with a review of literature.
Adenocarcinoma ; Aged ; Bile Ducts, Intrahepatic ; Biliary Tract ; Carcinogens ; Causality ; Cholangiocarcinoma ; Cholangiography ; Cholangitis, Sclerosing ; Colitis, Ulcerative ; Common Bile Duct* ; Diagnosis ; Epithelium ; Female ; Gallbladder* ; Hepatic Duct, Common* ; Humans ; Jaundice ; Occupational Exposure ; Pruritus ; Ultrasonography ; Weight Loss

Pulmonary arteriovenous malformation (PAVM) is an abnormal direct communication between the pulmonary arteries and veins without any capillary network. The patients may be completely asymptomatic or may they develop serious complications including hemoptysis and brain abscess. We present here a case of incidentally found PAVM in a 33-year-old male who underwent embolization using platinum coils. Coil embolization is a safe, highly effective procedure that should be considered more often for the treatment of PAVM.
Adult ; Arteriovenous Malformations* ; Brain Abscess ; Capillaries ; Embolization, Therapeutic ; Hemoptysis ; Humans ; Male ; Platinum* ; Pulmonary Artery ; Veins

No abstract available.
Chin* ; Humans ; Membranes* ; Prostate* ; Prostatic Neoplasms* ; RNA, Messenger* ; RNA-Directed DNA Polymerase*