No abstract available.
MELAS Syndrome*

No abstract available.
Hand* ; Surgical Flaps*

Bond strength of luting cements to dentin is a critical consideration for success of complete cast crowns. This study was performed to evaluate the relationship between surface characteristics of teeth prepared for complete cast crowns and retention of cemented restorations. Eighty artificial crowns were cast for standardized complete crown tooth preparations accomplished with the use of a special device on recently extracted human teeth. Coarse diamond(#102R, Shofu) and superfine finishing diamond(#SF102R, Shofu) burs of similar shape were used. Crowns in each group were randomly subdivided into four subgroups of 10 for luting cements selected for this study: zinc phosphate cement (FLECK'S), polycarboxylate cement (Poly-F), reinforced glass ionomer cement (Fuji PLUS), and adhesive resin cement (Panavia 21). Retention was evaluated by measuring the tensile load required to dislodge the artificial crown from tooth preparations with an Instron testing machine, and analysed by one-way ANOVA and Student's t-test. The obtained results were as follows ; 1. When tooth preparation was done with coarse diamond bur, retentive force was diminished in order of Panavia 21, Fuji PLUS, FLECK'S, and Poly-F. Retentive forces showed the significant difference between Fuji PLUS group and FLECK'S group(p<0.001). 2. When tooth preparation was done with superfine diamond bur, retentive force was diminished in order of Fuji PLUS, Panavia 21, FLECK'S and Poly-F. Retentive forces showed the significant difference between Panavia 21 group and FLECK'S group(p<0.001). 3. Retentive force in coarse tooth surfaces was significantly higher than that in superfine tooth surface with all luting cements(p<0.001), and cement residues were almost retained with in the cast crown in all groups.
Adhesives ; Crowns* ; Dental Instruments ; Dentin ; Glass Ionomer Cements ; Humans ; Polycarboxylate Cement ; Resin Cements ; Tooth Preparation ; Tooth* ; Zinc Phosphate Cement

Ultrasono-guided percutaneous catheter drainage of 28 abscesses and fluid collections was performed. In 24cases, operation was avoided and the patients were cured(24/28). Of these, 4 cases were recurred and repeatedcatheter drainage was performed. There were two failures and partial success was achieved in 2 cases; in thesepatients, operation was necessary, although the patients benefited from the percutaneous drainage. Cures andpartial successes totaled 26/28. We describe significance of the diagnostic needle aspiration, especially inpredicting the drainability of cavity contents. We review aspects of postprocedurecatheter management includingirrigation and timining of withdrawal.
Abscess ; Catheters ; Drainage ; Humans ; Needles

No abstract available.
Granular Cell Tumor* ; Larynx*

No abstract available.

Lymphomatous involvement of the heart, occurring at initial diagnosis and presentation, is extremely rare. We report here a case of 58 year old man who presented with generalized edema, pericardial effusion, and a large right atrial mass detected by transesophageal echocardiography. There is no other evidence of disseminated lymphoma in this patient. Tumor removal and pulmonary embolectomy was done. Pathologically, the mass was malignant lymphoma, diffuse large cell type. Unfortunately, we have no chance to perform the intensive chemotherapy. The patient discharged in moribund state.
Diagnosis ; Drug Therapy ; Echocardiography, Transesophageal ; Edema ; Embolectomy ; Heart ; Humans ; Lymphoma* ; Middle Aged ; Pericardial Effusion

Invasive pulmonary aspergillosis (IPA) has been known to occur in immunocompromised patients, but has been rarely reported in immunocompetent patients. In immunocompetent patients, pulmonary fungal infections are not initially considered. This results in diagnosis and treatment delays, as well as poor prognosis. We report a case and serial CT findings of IPA in an immunocompetent 29-year-old male after congenital heart disease surgery.

Fistula between the right renal artery and the infereior vena cava is a rare disorder, of which only 7 cases were reported in so far as the authors have reviewed. A 34-year-old man, who had got a stab wound on the abdomen and undergone an abdominal surgery 12 years ago during his military service, visited the hospital because of occipital headache and known hypertension for 5 years. On examination, his blood pressure was 200/140mmhg, and a thrill and loud continuous vascular bruits over the paraumbilical and right loin region were noted. his blood pressure was refractory to usual antihypertensive regimens. The chest X-ray film showed cardiac enlargement and pulmonary congestion. With the aids of abdominal ultrasonogram, static and dynamic renal scanning with (99m)T-DTPA, excretory urogram, aortogram and selective right renal angiogram, he was diagnosed as right renal artery inferior vena cava fistula. After fistulectomy and repair of walls of both vessels, his blood pressure was successfully controlled with drugs.
Abdomen ; Adult ; Arteriovenous Fistula* ; Blood Pressure ; Estrogens, Conjugated (USP) ; Fistula ; Headache ; Humans ; Hypertension ; Hypertension, Renovascular ; Military Personnel ; Renal Artery* ; Thorax ; Ultrasonography ; Vena Cava, Inferior* ; Wounds, Stab ; X-Ray Film

BACKGROUND/AIMS: When stools containing altered blood are the sole evidence for acute gastrointestinal bleeding, the bleeding source is uncertain. Because the absorption of blood products via the small intestine is responsible for azotemia after gastrointestinal bleeding, patients with colorectal bleeding rarely become azotemic. Therefore the blood urea nitrogen to creatinine ratio (BUN/Cr ratio) is believed to reliably discriminate upper gastrointestinal bleeding (UGIB) from lower gastrointestinal bleeding (LGIB). This study was conducted to evaluate the BUN/Cr ratio for distinguishing an upper versus lower source of gastrointestinal bleeding. METHODS: Charts of patients who were admitted to Maryknoll hospital with the diagnosis of gastrointestinal bleeding from August 1994 to August 2000, were retrospectively reviewed for source of bleeding, initial blood urea nitrogen (BUN), creatinine (Cr), BUN/Cr ratio, hemoglobin, and hematocrit. RESULTS: A total of 298 patients were eligible for inclusion, 210 (70%) of whom were male. A total of 168 (56%) patients had an UGIB. Gastric ulcer disease (42%) and esophageal varices (27%) were the most common causes of UGIB, whereas malignant neoplasm was etiologic in 29% of LGIB episodes. The mean standard deviation BUN/Cr ratio was significantly higher in UGIB than LGIB (34.1+/-12.9 vs. 12.2+/-; p<01). CONCLUSIONS: The BUN/ Cr ratio may be a useful tool in distinguishing upper from lower sources of gastrointestinal bleeding, especially in patients with an uncertain source that could be upper or lower in origin.
Absorption ; Azotemia ; Blood Urea Nitrogen ; Creatinine ; Diagnosis ; Esophageal and Gastric Varices ; Hematocrit ; Hemorrhage* ; Humans ; Intestine, Small ; Male ; Retrospective Studies ; Stomach Ulcer ; Urea*