No abstract available.

No abstract available.
Pre-Eclampsia* ; Proteinuria*

Magnetic resonance imaging(MRI) appears to be the most sensitive modality for early diagnosis of avascular necrosis of the femoral head and has recently been recommanded as a means of strengthening individual treatment decisions, However, MR signal patterns in AVN has been described to vary widely. And the understanding of the anatomic and pathologic structures represented on the MRI thus appears desirable for improved tissue characterization, staging of disease, and therapeutic planning. The object of this study was to analyze the correlation of MRI, radiographic staging, radionuclide imaging, and histological findings in AVN of the femoral head. The authors analyzed retrospectively 30 patients(36 hips) of AVN of the femoral head who underwent bipolar hemiarthroplasty or total hip replacement arthroplasty at Korea University Hospital from Nov. 1990 to Oct. 1993. The radiographic stage was evaluated according to Ficat and Arlet classification, and MRI was evaluated according to Mitchell et al. classification. The histologic changes corresponding to MRI abnormalities were assessed in 10 fresh surgical specimens. The obtained results were as follows; 1. Nine cases (25%) were class A, 3 class B (8%), 6 class C (17%) and 18 class D(50%) by Michell et al. classification on MRI and typical double line sign was found in 20 cases(56%). 2. Most of the cases of Ficat and Arlet stage II in simple radiograph showed MR class A or B, and stage III and IV showed class C or D. 3. There cases(10%) showed false negative studies in radionuclide imaging. 4. The necrotic bone & marrow and amorphous cellular debris represented the low signal intensity on both T1WI and T2WI, and repairing tissue, thickened trabeculae with mesenchymal cell infiltration was low signal intensity in T1WI and intermediate signal intensity in T2WI, and fibrous tissue was low signal intensity on both T1WI and T2WI. 5. MR classification by Mitchell et al. was not correlated with histological finding in respect of progression. Above results suggest that MRI provide the information about accurate anatomical location and involved site of necrosis, while MR classification by Mitchell et al. was not useful for staging of pathogenic process of AVN of the femoral head. The therapeutic plan and modalities have to be estabilished by comprehensive analysis of MRI, simple radiograph and other diagnostic modalities.
Arthroplasty ; Arthroplasty, Replacement, Hip ; Bone Marrow ; Classification ; Early Diagnosis ; Head ; Hemiarthroplasty ; Korea ; Magnetic Resonance Imaging ; Necrosis ; Radionuclide Imaging ; Retrospective Studies

No abstract available.

A simple technique for transpedicular screw fixation of L5 is presented. This percutaneous screwing allows up-and-in screw placement without excessive lateral stretching and lessens the length of incision.
Spine*

A simple technique for transpedicular screw fixation of L5 is presented. This percutaneous screwing allows up-and-in screw placement without excessive lateral stretching and lessens the length of incision.
Spine*

BACKGROUND: Cardiac myxomas are rare benign tumors of the heart. Although cardiac myxomas are histologically benign, they may be lethal because of their strategic position. Most cases are sporadic, but rare familial occurrence has been described. PATIENTS AND RESULTS: The left atrial myxoma with cerebral embolism was diagnosed in the 21 year old female and the left atrial myxoma with acromegaly due to pituirary adenoma was subsequently diagnosed in her 19 year old male sibling. The myxoma in the male patient was successfully excised. CONCLUSION: Echocardiography can be used effectively in the diagnosis of atrial myxoma, detection of its possible recurrence, and screening other members of the family.
Acromegaly ; Adenoma ; Diagnosis ; Echocardiography ; Female ; Heart ; Humans ; Intracranial Embolism ; Male ; Mass Screening ; Myxoma* ; Recurrence ; Siblings ; Young Adult

No abstract available.
Neoplasm Metastasis*

PURPOSE: Colonic diverticulitis is an uncommon disease in Korea, but the incidence of the disease is increasing. The right colon is the more preferred site for diverticulitis in Korea, but the incidence of left diverticulitis is increasing. Therefore, comparing the clinical features and treatments for right diverticulitis with those for left diverticulitis may help us to treat the disease more properly. METHODS: This study was performed retrospectively by reviewing the medical records of 96 patients with colonic diverticulitis, in whom either conservative or operative treatments were performed. RESULTS: Eighty-six patients had right diverticulitis (RD), and 10 patients had left diverticulitis (LD). The mean age of the patients was older for LD. Sixteen patients (18.6%) with RD had complications, and 7 patients (8.1%) underwent operations. On the other hand, 4 patients (40%) with LD had complications, and 3 patients (30%) underwent operations. The rates of complications and operations among old-aged patients were higher. The operations for 7 patients with RD who underwent surgery were 6 ileocecectomies and 1 diverticulectomy. On the other hand, the operations for the 3 patients with LD who underwent surgery were 2 resections and anastomoses and 1 diverticulectomy. The reasons for the operations were abscess formation, recurrence, perforation, and development of generalized peritonitis without response to conservative treatment. CONCLUSION: The incidence of LD is lower than that of RD in Korea, but the rate of complications and operations seems higher in LD. Therefore, patients who complain of left lower abdominal pain need to be thoroughly examined for LD.
Abdominal Pain ; Abscess ; Colon ; Diverticulitis ; Diverticulitis, Colonic ; Hand ; Humans ; Incidence ; Korea ; Medical Records ; Peritonitis ; Recurrence ; Retrospective Studies

OBJECTIVES: The incidence and survival rate of colorectal cancer in Korea are increasing because of improved screening, treatment technologies, and lifestyle changes. In this aging population, increases in economic cost result. This study was conducted to estimate the economic burden of colorectal cancer utilizing claims data from the Health Insurance Review and Assessment Service. METHODS: Economic burdens of colorectal cancer were estimated using prevalence data and patients were defined as those who received ambulatory treatment from medical institutions or who had been hospitalized due to colorectal cancer under the International Classification of Disease 10th revision codes from C18-C21. The economic burdens of colorectal cancer were calculated as direct costs and indirect costs. RESULTS: The prevalence rate (per 100 000 people) of those who were treated for colorectal cancer during 2010 was 165.48. The economic burdens of colorectal cancer in 2010 were 3 trillion and 100 billion Korean won (KRW), respectively. Direct costs included 1 trillion and 960 billion KRW (62.85%), respectively and indirect costs were 1 trillion and 160 billion (37.15%), respectively. CONCLUSIONS: Colorectal cancer has a large economic burden. Efforts should be made to reduce the economic burden of the disease through primary and secondary prevention.
Adolescent ; Adult ; Aged ; Aged, 80 and over ; Child ; Child, Preschool ; Colorectal Neoplasms/*economics/epidemiology ; *Cost of Illness ; Female ; Health Care Costs ; Health Expenditures ; Humans ; Infant ; Infant, Newborn ; Male ; Middle Aged ; Prevalence ; Republic of Korea ; Young Adult