No abstract available.
Sepsis*

The rim sign in renovascular compromise may be defined as a thin nephrographic rim outlinning a kidney with another wise faint nephrogram. Renal infarction with gelform and blood clots was induced experimentally in 5 dogsand high dose IVP and CT were performed to evaluate renal cortical rim sign after renal infarction. One expireddue to anesthetic technical failure, and one was embolized partially. So we could be obtain the result on 3 dogs.The reults were as follows; 1. The high dose IVP films show cortical rim sign on 24 hrs and 72 hrs films in twodogs. The CT films show rim sign in 3 dogs. 2. The rim sign may be visualized, if the renal artery is occuludedenough to drop perfusion presssure below the authoregulatory range. 3. The high dose IVP and early nephrogramphase are necessary for the rim sign.
Animals ; Dogs ; Infarction ; Kidney ; Perfusion ; Renal Artery

No abstract available.
Kidney* ; Neuroectodermal Tumors, Primitive*

No abstract available.
Cognition*

No abstract available.
Arthrogryposis* ; Pyloric Stenosis*

We review 66 patients with lower caliceal stones treated with extracorporeal shock wave lithotipsy. One of the major problems involved with extracorporeal shock wave lithotripsy is the high rate of residual stone fragments in the lower calices. We observed the influence of the presence of lower caliceal dilatation, hydronephrosis, and the size of alone on the passage of stone. Thirty-nine of the 66 patients with a lower caliceal stone and no stone fragments. The success rate was only 59 per cent. The stone was completely fragmented in 59 of 66 (89%) patients. Thirty-nine of 59 patients who had completely fragmented stones. had no residual fragments. The patients who had no lower caliceal dilatation and a relativgly small size stone (less than 1.5 x 1.0 cm). such as in group 4. had a high success rate of 70%. The patients with a large stone or the presence of caliceal dilatation. were expected to low success rate, therefore there was a need for repeated treatment with extracorporeal shock wave lithotripsy and combined treatment with percutaneous nephrostomy.
Dilatation ; Humans ; Hydronephrosis ; Lithotripsy* ; Nephrostomy, Percutaneous ; Shock*

No abstract available.

In 200 patients with renal stone and upper and midureter stone, we have tried 241 sessions of percutaneous nephrolithotripsy. The success rate of nephrolithotripsy for different location and type was as follows. For renal pelvis stone 96.5%, staghorn stone lOO%, calyceal stone 84.4%, UPJ and upper ureter stone 76.8%, midureter stone 66.7%. We were successful in most of cases after preliminary report of earlier experience with 50 cases. And improvement of the result in removal of calyceal stone and upper ureter stone was especially conspicuous. In addition, we have complied experience with percutaneous removal of stone in patient with solitary kidney and of staghorn stone, and the result was satisfactory. Based on the accumulated experience, it was possible to remove almost all renal stones and most of upper and midureter stones by percutaneous approach although residual stones were present in large pelvis stone and staghorn stone. Thus in future, even when ESWL is widely utilized, endourologic management must be included in the algorithm of treatment of stone diseases to expect better success rate and less complications.
Humans ; Kidney ; Kidney Pelvis ; Nephrostomy, Percutaneous* ; Pelvis ; Ureter

We treated 160 patients with ureteral stones using extracorporeal shock wave lithotripsy (Siemens Lithostar, Germany) and evaluated many factors which influence the results of ESWL such as stone size, location, degree of ureteral obstruction. duration of impaction and adjuvant procedure. Our results showed that. in case of large stones (more than 1 cm in diameter), mid-ureteral stones, long-standing impacted stones or in-situ treatment, the success rates of ESWL were relatively poor. Therefore in cases accompanying the above-mentioned factors, in is necestary to recognize that the patients may be required to repeat ESWL. The results also suggest that the use of an ureteral catheter or stent may contribute to a slightly higher success rate. But we prefer in-situ extracorporeal shock wave lithotripsy to an ureteral stent because it is an invasive procedure.
Humans ; Lithotripsy* ; Shock* ; Stents ; Ureter* ; Ureteral Obstruction ; Urinary Catheters

A full understanding of the potential anatomical variations of the renal veins and its branches is imperative for donor nephrectomies. Preoperative renal angiography is the most important study to evaluate renal vascular anatomy. By this technique. the renal arteries are well visualized. but it is almost impossible to obtain the exact informations of the renal veins and its branches. To prevent extensive manipulation of the kidney by profuse bleeding. the exact information of the renal veins and its branches is very important. Based on intraoperative observation of 240 consecutive cases of donor nephrectomies. we observett. the common renal vein variants. Left renal veins usually had two branches; adrenal vein proximally and gonadal vein distally. Lumbar veins were identified in 112 cases(56.7%) Lumbar veins were connected to renal veins posteriorly near the draining site of gonadal veins. Therefore it is very important to dissect very carefully the posterior part of renal vein around the insertion of gonadal vein because of the existence of lumbar vein which might cause troublsome bleeding by accidental tearing. Especially when the cases of angulated renal veins were observed by renal angiography. the more attention will be required due to the strong possibility or the existence of lumbar vein.
Angiography ; Gonads ; Hemorrhage ; Humans ; Kidney ; Nephrectomy* ; Renal Artery ; Renal Veins ; Tissue Donors ; Veins