This study has been examined different morphologic measurements in the evaluation of patients with lumbar spinal stenosis. Preoperative CT-Myelography from 30 patients who underwent surgery for central lumbar stenosis were analyzed. Based on this, we concluded as follows : 1) Bony measurement alone did not reliably identify patients with spinal stenosis. 2) Measurement of the transverse area of the dural sac on CT-Myelography was the most accurate method for identifying stenosis. 3) Lumbar myelography was still considered to have an important role in the valuation of a patient with stenosis because of correlation between the cross-sectional area of the dural sac and the anteroposterior diameter of the dural sac was excellent. 4) We identified soft-tissue problems as the main cause of stenosis. 5) The most common level of maximum stenosis was L4-5.
Constriction, Pathologic ; Humans ; Myelography* ; Spinal Stenosis*

Arthroscopic synovectomy has some limitations for adequate posterior visualization, and it is difficult to establish the posterior portal because of potential damage to neurovascular structures. The purpose of this study is to introduce a newly designed arthroscopic technique passing through posterior septum and to review the arthroscopic synovectomy using transposterior septal portal in the knee. Routine arthroscopic examination of the knee joint is performed using standard anterolateral and anteromedial portals. Posterior arthroscopic technique is divided into four steps. The first step is to make a posteromedial portal. The second step is to make a posterolateral portal. The third step is to make a hole at the posterior septum and to examine the posterolateral compartment. The fourth step is to examine the posteromedial compartment by switching the arthroscope to the posterolateral portal in the same manner. This technique provides complete visualization of the posterior compartment of the knee joint including the posterior aspect of the medial and lateral femoral condyles, posterior horn of both menisci, the posterior cruciate ligament(PCL), the meniscofemoral ligament, posterior aspect of the popliteal tendon, and the posterior capsule. We reviewed 47 cases(of 43 patients) of arthroscopic synovectomy using anterolateral, anteromedial and transposterior septal portal. The results were assessed with follow up of at least 1 year using the criteria of pain, synovitis, effusion, and range of motion. In 15 case rheumatoid arthritis, we had good result in 14 cases, but 1 case of recurrence was noted at 2 months after surgery. Non specific synovitis, 11 cases, had the similar result of rheumatoid arthritis. In 9 cases with hemophilic arthritis, pain and effusion were improved, but range of motion was improved minimally. In 2 cases with gouty arthritis, 2 cases with tuberculous arthritis, and I case with pigmented villonodular synovitis(PVNS), range of motion was rather reduced. It is considered that arthroscopic technique using transposterior septal portal is safe procedure without damaging the PCL, posterior capsule, neurovascular structures, and very efficient method in removing hypertrophied synovium or debris of persistent synovitis or arthritis of the knee joint and helpful in removing encapsulated loose bodies located behind the PCL.
Animals ; Arthritis ; Arthritis, Gouty ; Arthritis, Rheumatoid ; Arthroscopes ; Arthroscopy ; Follow-Up Studies ; Horns ; Knee ; Knee Joint ; Ligaments ; Range of Motion, Articular ; Recurrence ; Synovial Membrane ; Synovitis ; Tendons

The fibrovascular tissues surrounding a glaucoma implant have been found to play a major role for the orbital absorption of aqueous humor following a glaucoma implant surgery. An ultrasonographic study was performed to investigate the ultrasonographic, characteristics of the tissues and its relationship with the postoperative intraocular pressure(IOP) control. Twenty-three eyes of 23 patients had undergone the e-PTFE membrane-silicone tube implantation and had been followed up for at least 6-month(mean +/- SD, 17 +/- 8.8 months). An ultrasonographic study for these eyes included such paramneters as presence of an aqueous reservoir surrounding the implant, size(height) of the aqueous reservoir and echoreHectivity from the reservoir wall tissues. The aqueous reservoir was identified in 22(96%) of 23 eyes and had a height varying from 1.0 mm to 5.5 mm. In eyes with an aqueons reservoir. 3 mm high or more, the IOPs were all 21 mmHg or less without further glaucoma medications(p=0.040, chi-square). In one eye with an obliterated reservoir on ultrasonography, the opening of the silicone tube was found to be occluded toward the extrascleral portion of the implant when reoperation was performed. The echo reflections from reservoir wall tissues were denser and higher comparing with those from the sclera of the respective eye in 7 eyes with a complete failure of postoperative lOP control(>or=30 mmHg on maximum medical theraph). These eyes also had and irregular echoreflections within the aqueous reservoir, which reflect an invasion of proliferating tissues into the reservoir.
Absorption ; Aqueous Humor ; Glaucoma* ; Humans ; Orbit ; Reoperation ; Sclera ; Silicones ; Ultrasonography

We observed the gastric varices in l89 variceal patients with liver cirrhosis and in 129 patients with UGI bleeding by endoscopy. Gastric varices was found in 27 cases(14.2%) amoag 189 variceal cases. There was variceal bleeding in 74 cases(57.4%) beieg the toy cause of UGI: bleeding among l29 cases with UGI bleeding and 6(4.7%) had endoscopically proved gastric Variceal bleeding. Cardiac and fundic varices were observed in l8 and 12 cases, respectively end 12 cases of cardiac varices were mainly observed on the lesser curvature side. The incidence of isolated gastric varices being 30 % amoag gastric varices was far less than that of esophagogastric varices. There was no significant relations between the severity of liver cirrhosis and the kinds of varices These results suggest that gastric varices are not infrequent cause of UGI bleeding cases. Therefore all must have attention in gastric intestinal fiberscopic examination in portal hypertensive patients.
Endoscopy ; Esophageal and Gastric Varices* ; Hemorrhage ; Humans ; Incidence ; Liver Cirrhosis ; Play and Playthings ; Varicose Veins

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*

Toxic epidermal necrolysis (T~EN) is a severe mucocutaneous disease characterized by epidermal necrosis possibly extended to the entire body surface and involving multiple internal organs. Digestive tract may be involved too, but there is few report about gastrointestinal lesion in patient with TEN. Recently we experienced a case of TEN with gastrointestinal bleeding in previously healthy 32-year-old woman. The condition developed three days after the initiation of treatment with NSAID and progressed caudally, involving 60 percent of the skin surfaces. During a period of admission gastrointestinal bleeding was noticed. The gastrofiberscopy showed diffuse superficial mucosal lesion with oozing from swollen friable and erythematous mucosa. The skin lesion was progressed inspite of withdrawal of causative agents. The patient was expired due to combined septic shock 10 days later. We report this case with gastrofiberscopic findings and a brief review of literature.
Adult ; Female ; Gastrointestinal Tract ; Hemorrhage* ; Humans ; Mucous Membrane ; Necrosis ; Shock, Septic ; Skin ; Stevens-Johnson Syndrome*

PURPOSE: Colonic diverticulitis was rare in Korea in the past. However, it is progressively increasing probably because of a prolonged life span and a westernized diet pattern. Especially, right-sided colonic diverticulitis is difficult to differentiated from acute appendicitis. The purpose of this study was to verify the usefulness of laparoscopic-assisted surgery for the diagnosis and treatment of colonic diverticulitis. METHODS: We retrospectively reviewed 65 patients with colonic diverticulitis who underwent surgery from January 1998 to December 2002. RESULTS: The mean age of the patients was 36.3 years. Males were more prevalent than females (1.6:1). Abdominal ultrasonography (USG) was used as a diagnostic tool in 40 cases (61.5%), abdominal USG with colon enema in 8 cases (12.3%), and abdominal USG with abdominal CT in 4 cases (6.2%). The preoperative diagnosis was acute appendicitis in 52 patients (80.0%), perforated diverticulitis in 10 patients (15.4%), peritonitis in 2 patients (3.5%), and peptic ulcer perforation in 1 patient (1.5%). The postoperative diagnosis was simple diverticulitis in 47 cases (72.3%). The cecum was the most commonly involved area (55 cases, 84.6%). The types of open surgery were an appendectomy in 17 cases (26.1%), a right hemicolectomy in 17 cases (26.1%), a cecectomy in 6 cases (9.2%). The types of laparoscopic- assisted surgery were an appendectomy in 17 cases (26.1%), a laparoscopic-assisted right hemicolectomy in 4 cases (6.2%), and an anterior resection in 1 case (1.5%). The postoperative complication rate was 11.9% (5 cases). All of these occurred with the open technique, but no statistically significant difference existed between the complication rates for the two operative procedures (P=0.158). The mortality rate was zero for both operative procedures. The length of hospital stay (4.72+/-4.3 vs 10.1+/-6.2)(P=0.001) was significantly shorter in the laparoscopic-assisted group than in the open group. CONCLUSIONS: Preoperative diagnosis is sometimes difficult in patients with colonic diverticulitis. We consider laparoscopic-assisted surgery to be a useful diagnostic and therapeutic modality in such cases. The laparoscopic technique offers particular advantages to diverticulitis patients because of the short hospital stay and the low morbidity and mortality rates.
Appendectomy ; Appendicitis ; Cecum ; Colon* ; Diagnosis ; Diet ; Diverticulitis ; Diverticulitis, Colonic* ; Enema ; Female ; Humans ; Korea ; Length of Stay ; Male ; Mortality ; Peptic Ulcer Perforation ; Peritonitis ; Postoperative Complications ; Retrospective Studies ; Surgical Procedures, Operative ; Tomography, X-Ray Computed ; Ultrasonography

OBJECTIVE: To compare the multiplex-PCR and hybrid capture methods for detection of Human papillomavirus (HPV) in uterine cervical swab samples. METHODS: This study determined the HPV infection and its risk group (subtype) in uterine cervical swab samples of 91 Korean women by HPV hybrid capture I and multiplex-PCR method. RESULTS: The prevalence of HPV infection determined by muliplex-PCR was more higher than by hybrid capture method I. Of 65 women with nonspecific uterine cervical lesions, the frequence of HPV-positivity was 14/65 (12 low-risk and 2 high-risk HPV) by hybrid capture method I and was 37/65 (34 low-risk and 3 high- risk HPV) by multiplex-PCR method, respectively. The frequence of high-risk HPV was 2/6 in LSIL, 7/14 in HSIL, 4/6 in uterine cervical cancer by hybrid capture method I, and was 2/6 in LSIL, 8/14 in HSIL, 4/6 in uterine cervical cancer by multiplex-PCR method. CONCLUSION: These results suggest that multiplex-PCR is more sensitive, simple and cost-effective technique than Hybrid-capture I in the detection of HPV infection in the uterine cervix.
Cervix Uteri* ; Female ; Humans* ; Multiplex Polymerase Chain Reaction* ; Prevalence ; Uterine Cervical Neoplasms

BACKGROUND: Post-ischemic myocardial dysfunction (myocardial stunning) is known to be associated with low reflow phenomenon or the reduction of coronary vasodilatory reserve. However, it remains controversial whether a relationship between myocardial stunning and post-ischemic impairment of coronary flow reserve exists. With increased influx of calcium into myocardial cells precipitated by ischemia and reperfusion known to be involved not only in the progression of myocardial tissue damage but also in the pathogenesis of post-ischemic myocardial dysfunction and impaired coronary vasodilatory reserve, it has been hypothesized that calcium channel blockers exert protective effects on post-ischemic myocardial dysfunction and microvascular dysfunction. PURPOSE: To investigate the effects of diltiazem, a calcium channel blocker, on post-ischemic myocardial dysfunction and coronary vasodilatory reserve, vehicle or diltiazem was administered before brief coronary artery occlusion in open chest dogs. Peak coronary flow and myocardial contractile function were measured after intracoronary infusion of endothelium-dependent vasodilator acetylcholine and endothelium-independent vasodilator adenosine. The parameters measured before and after reperfusion in control dogs and diltiazem-treated dogs were compared. METHOD: Open chest dogs (n-17) underwent 20 minutes occlusion of left circumflex artery followed by reperfusion for 60 minutes:the subjects were divided into two groups (n-10 in control group and n-7 in diltiazem group). Diltiazem dogs received diltiazem (0.2 mg/kg) intravenuously 15 minutes before coronary occlusion. Control dogs received vehicle-a saline solution. Coronary blood flow was measured with electromagnetic flow probe. Coronary flow reserve was determined by peak coronary flow after intracoronary infusion of acetylcholine (ACH, 0.01ug/kg) and adenosine (ADE, 1.5 mg/kg):it was also determined by reactive hyperemia (RH) measured after coronary occlusion for 20 seconds at baseline and 30 and 60 minutes after reperfusion. Segmental left ventricular function was assessed by 2-D echocardiography at the level of mid-papillary muscle, and changes of left ventricular function was expressed as % change of myocardial thickening and % change of endocardial thickening. RESULTS: Peak coronary flow and minimal coronary vascular resistance with ACH, ADE and RH were maintained at 30 and 60 minutes after reperfusion in the diltiazem group, but those in the control group were significantly impaired. There was no difference in reduction of % change of peak flow with ACH in both groups (p-0.44), but the reduction of % change of peak flow with ADE was attenuated in the diltiazem group when compared with the control group (p-0.03) 60 minutes after reperfusion. Total myocardial thickening and endocardial wall motion at 30 and 60 minutes after reperfusion were significantly reduced than those assessed before coronary occlusion in both groups, but the endocardial wall motion was less depressed in the diltiazem group than that in the control group. There was no correlation between % change of peak flow in response to ACH and to ADE and % change of myocardial thickening:there was also no correlation between % change of endocardial wall motion in the control group and % change of myocardial thickening in the diltiazem group. There was however good correlation between % change of peak flow and % change of endocardial wall motion in the diltiazem group. CONCLUSION: The findings that changes in peak coronary flow and minimal coronary vascular resistance do not correlate with the change in myocardial contractile function in the dog model with reperfusion after 20 minutes coronary occlusion suggest that microvascular and myocardial stunning develop independent of each other. The protective effect of diltiazem on impaired coronary flow reserve and contractile dysfunction following reperfusion after brief ischemia also suggests that calcium overloading plays a role in the pathogenesis of microvascular stunning as well as myocardial stunning.
Acetylcholine ; Adenosine ; Animals ; Arteries ; Calcium ; Calcium Channel Blockers ; Calcium Channels ; Coronary Occlusion ; Coronary Vessels ; Diltiazem* ; Dogs* ; Echocardiography ; Hyperemia ; Ischemia ; Magnets ; Myocardial Stunning ; Reperfusion ; Sodium Chloride ; Thorax* ; Vascular Resistance ; Ventricular Function, Left

Chemical pneumonitis is defined as lung irritation caused by inhalation of substances toxic to the lungs. Acute chemical pneumonitis causes swelling of the lung tissue, movement of fluid into the air spaces in the lung, and a decreased ability to absorb oxygen and eliminate carbon dioxide. Teflon (polytetrafluoroethylene) is a commonly used synthetic fiber or insulator. To our knowledge, chemical pneumonitis and acute respiratory failure induced by Teflon inhalation has not been previously reported in Korea. We experienced a 44-year-old patient who had a cough and dyspnea that were aggravated 10 h after smoking tobacco wet by Teflon for 5 min at his workplace. Upon arrival at the emergency room, his blood pressure was low and his arterial blood gas analysis revealed hypoxemia. A chest radiograph showed diffuse haziness on both mid- to-lower lung fields. Following treatment by conservative therapy, including oxygen supply and steroid use, his condition was relatively good and his chest radiograph normalized.
Adult ; Anoxia ; Blood Gas Analysis ; Blood Pressure ; Carbon Dioxide ; Cough ; Dyspnea ; Emergencies ; Humans ; Inhalation ; Korea ; Lung ; Oxygen ; Pneumonia ; Polytetrafluoroethylene ; Respiratory Insufficiency ; Smoke ; Smoking ; Thorax ; Tobacco