No abstract available.
Ankle Fractures* ; Ankle*

No abstract available.

To investigate the effect of tumor removal and administration of OK432 on the splenic natural killer (NK) cell activity in the subcutaneous tumor bearing rats, NK cell activity assay using a 4-hour 51Cr release assay and flow cytometric analysis for NK cell population were performed. The results were as follows: 1. Splenic NK cell activity and population in the subcutaneous tumor bearing rats decreased along with the growth of the tumor. 2. The rats with subcutaneous tumor removal showed decrease of splenic NK cell activity, but splenic NK cell population was not decreased. 3. In the rats with subcutaneous tumor removal and OK432 administration, splenic NK cell activity was significantly increased 1 week after administration of OK432 and then gradually returned to normal, whereas increase of NK cell population was not significant. In the present study, splenic NK cell activity was significantly decreased despite removal of subcutaneous tumor. But with the administration of OK432, splenic NK cell activity returned to normal. Considering the role of NK cells on the first line of defense against the metastatic implantation of circulating tumor emboli, we suggest that perioperative administration of immunopotentiator such as OK432 may improve the patient's outcome after surgery of human neoplasm.
Animals ; Humans ; Killer Cells, Natural* ; Picibanil* ; Rats* ; Spleen

No abstract available.
Humans ; Longitudinal Ligaments* ; Spine*

No abstract available.
Animals ; Cardioplegic Solutions* ; Oxygen* ; Rats*

We evaluated the availability of Lithoclast in ureteroscopic removal of stone retrospectively. We treated 62 patients(68cases) with ureteral calculi using stone basket or Swiss Lithoclast lithotriptor with the rigid ureteroscope (URS) between December 1993 and February 1995. The success rates of URS were 93%(63/68), and Lithoclast use rates were 77%(52/68). According to stone site, Lithoclast use rates were 68%(28/41) in the lower ureter, 86%(12/14) in the mid, 92%(12/13) in upper ureter respectively. According to stone size, Lithoclast use rates were 50%(4/8) in less than 0.5cm, 75%(30/40) in 0.6-1.0cm, 89%(16/18) in 1.1-2.0cm, 100%(2/2) in above 2.0cm respectively The Lithoclast successfully fragmented stones. There were 5 failures of URS due to failure in access to stone by URS(4 cases), impacted stone(1 case). Reoperation consist of URS in 2 cases, ureterolithotomy in 2 cases and nephrectomy in 1 case. The complications of Lithoclast use URS were insignificant such as gross hematuria(3 cases), infection(2 cases), flank pain(1 case). There were no intraoperative or long term complications directly related to the use of this device. In conclusion, Swiss lithoclast lithotripsy significantly contributed to improve the success rates in treatment of ureteral stone, and is a safe, effective and inexpensive device.
Lithotripsy ; Nephrectomy ; Reoperation ; Retrospective Studies ; Ureter ; Ureteral Calculi ; Ureteroscopes

A 40-year-old man attended our hospital with presenting symptoms of an acutely swollen, tender testicle and bulging mass on the inguinal area. Considered it as urgent conditions no demonstrating blood flow to the involved testicle on Color Doppler ultrasonography, we underwent scrotal exploration right away. On operative finding the right testis was so enlarged and engorged secondarily to the irreversible ischemic damage, but torsion of spermatic cord was not found. Another inguinal approach revealed herniated mass protruding from internal inguinal ring and compressing the spermatic cord. For further evaluation abdominal ultrasonography and CT scan was done and huge mass occupying right lower quadrant of abdomen and pelvic cavity was noted. The resected tumor through surgical exploration was proved to be a retroperitoneal liposarcoma pathologically. Herein we report an uncommon case of testicular infarct, mimicking torsion of spermatic cord that is a urological emergency, caused by herniated retroperitoneal mass. So the present report suggest that, when adult men attend with symptoms of acutely swollen painful testicle, we pay a more careful attention to patient,s physical findings and recommend further diagnostic evaluation.
Abdomen ; Adult ; Emergencies ; Humans ; Inguinal Canal* ; Liposarcoma* ; Male ; Spermatic Cord ; Testis ; Tomography, X-Ray Computed ; Ultrasonography ; Ultrasonography, Doppler, Color

Balloon pulnounary valvuloplasty is an established method in the treatment of congenital valvular pulmonary stenosis. Balloon valvuloplasty was performed by using one or two balloons in a total of 19 mongrel dogs. Cross sectional area ratio ranging 145-406% was used to compare the relative sizes of the pulmonary annulus the balloon Hemodynamic changes and cardiac damages in single and double balloon groups were analyzed. Survival time of double balloon group was longer than that of single balloon group(P<0.05). Increment of the right ven?dular systolic pressure in single balloon group (mean 38 mmHg) was greater than that in double balloon group (mean 18 mmHg) (p<0.05). Decrement of the femoral arterial pressure in single balloon group (mean 87 mmHg) was greater than in double balloon group (mean 41 mmHg) (p<0.05). The locations of trauma were mainly the right ventricular free wall, the main pulmonary artery, the anterior leaflet of the pulmonary valve and in a less degree, anterior wall of the right atrium, the right ventricular outflow tract and the left pulmonary artery in the order of frequency. There were no significant differences in cardiac damages between single and double balloon groups (P>0.05). Major microscopic findings were sloughing of the endotheliu, fibrin deposition, hemorrhage, localized myocardial infarction and so on. In conclusion, double balloon pulmonary valvuloplasty is superior to single balloon technique in survival time and hemodynamics. Therefore, double, balloon technique is recommended for the pulmonary valvuloplasty.
Animals ; Arterial Pressure ; Balloon Valvuloplasty ; Blood Pressure ; Catheters* ; Dogs ; Fibrin ; Heart Atria ; Hemodynamics ; Hemorrhage ; Methods ; Myocardial Infarction ; Pulmonary Artery ; Pulmonary Valve ; Pulmonary Valve Stenosis

Balloon pulnounary valvuloplasty is an established method in the treatment of congenital valvular pulmonary stenosis. Balloon valvuloplasty was performed by using one or two balloons in a total of 19 mongrel dogs. Cross sectional area ratio ranging 145-406% was used to compare the relative sizes of the pulmonary annulus the balloon Hemodynamic changes and cardiac damages in single and double balloon groups were analyzed. Survival time of double balloon group was longer than that of single balloon group(P<0.05). Increment of the right ven?dular systolic pressure in single balloon group (mean 38 mmHg) was greater than that in double balloon group (mean 18 mmHg) (p<0.05). Decrement of the femoral arterial pressure in single balloon group (mean 87 mmHg) was greater than in double balloon group (mean 41 mmHg) (p<0.05). The locations of trauma were mainly the right ventricular free wall, the main pulmonary artery, the anterior leaflet of the pulmonary valve and in a less degree, anterior wall of the right atrium, the right ventricular outflow tract and the left pulmonary artery in the order of frequency. There were no significant differences in cardiac damages between single and double balloon groups (P>0.05). Major microscopic findings were sloughing of the endotheliu, fibrin deposition, hemorrhage, localized myocardial infarction and so on. In conclusion, double balloon pulmonary valvuloplasty is superior to single balloon technique in survival time and hemodynamics. Therefore, double, balloon technique is recommended for the pulmonary valvuloplasty.
Animals ; Arterial Pressure ; Balloon Valvuloplasty ; Blood Pressure ; Catheters* ; Dogs ; Fibrin ; Heart Atria ; Hemodynamics ; Hemorrhage ; Methods ; Myocardial Infarction ; Pulmonary Artery ; Pulmonary Valve ; Pulmonary Valve Stenosis

Carcinogenesis is a multi-stage process that generally consists of at least three steps; initiation, promotion, and progression. If one of these carcinogenic steps were suppressed or delayed, the cancer could be prevented. Cancer chemoprevention is defined to be inhibition or reversal of the carcinogenic process by the specific chemical agents and is a novel approach to cancer management alternative to conventional chemotherapy. Chlorophylln(CHL), a water-soluble derivative of chlorophyll, containing sodium and copper, has been known to be strong antimutagen in several test systems, but its mechanism of antimutagenic action is unknown. In the present experiment, the possibility of CHL as chemopreventive drugs on 7,12-dimethylbenz[a]anthracene(DMBA)-induced hamster buccal pouch carcinogenesis was investigated by mutagenicity test, carcinogenicity test, and frequency or spectrum of H-ras mutations in the both of DMBA-induced and chlorophylln-pretreated-DMBA induced tumor by polymerase chain reaction and non-isotopic restriction fragment length polymorphism. The treatment of CHL reduced the yields and multiplicity of the 0.5% DMBA-induced tumor, 86% to 62.5% and 3.7+/-0.6 to 1.4+/-0.3, respectively. The occurrence of histidine revertant by 20 micromole DMBA was inhibited 25.6 to 81.7% by 1 to 5 microM CHL in a dose-dependent manner. The mutation rates of H-ras gene in DMBA-induced and CHL-pretreated-DMBA induced tumor were 96%, 94% of which the most mutations were in codon 12/13. These results suggest that CHL inhibits the carcinogenic action of DMBA by the formation of complex between CHL and DMBA or the inhibition of the activation of DMBA in vivo. But CHL did not affect the mutation rates or its spectrum in already formed tumor.
9,10-Dimethyl-1,2-benzanthracene ; Animals ; Carcinogenesis ; Carcinogenicity Tests ; Cheek* ; Chemoprevention ; Chlorophyll ; Codon ; Copper ; Cricetinae* ; Drug Therapy ; Genes, ras ; Histidine ; Mutagenicity Tests ; Mutation Rate ; Polymerase Chain Reaction ; Polymorphism, Restriction Fragment Length ; Sodium