Urinary obstruction in renal transplants: diagnosis by antegrade pyelography and results of percutaneous treatment.

Urinary obstruction in renal transplants: diagnosis by antegrade pyelography and results of percutaneous treatment. Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

Urinary obstruction in renal transplants: diagnosis by antegrade pyelography and results of percutaneous treatment. Abstract Text:

T P Smith,D W Hunter,J G Letourneau,A H Cragg,M D Darcy,W R Castaneda-Zuniga,K Amplatz,

We reviewed our experience with 51 renal transplants to evaluate the accuracy of antegrade pyelography as compared with that of sonography and nuclear renography in the diagnosis of transplant obstruction. Also, the results of percutaneous treatment were analyzed in 44 of these patients. Obstruction was clinically suspected in all of the patients (increased serum creatinine levels and decreased urine output). Antegrade pyelography showed obstruction in 44 (86%) of the 51 patients, and nephrostomy drainage catheters were inserted. Sonography showed pyelocaliectasis in all 49 cases in which it was performed; in 42, the pyelocaliectasis was due to obstruction (14% false-positive rate). Nuclear renography showed obstruction in only six (18%) of 33 cases in which it was performed; all six cases proved to be obstructed (0% false-positive rate and 82% false-negative rate). Twenty-two (50%) of the 44 patients treated with nephrostomy drainage were managed successfully without surgical intervention; seven of these 22 required balloon dilation of ureteric strictures in addition to catheter decompression of the collecting system. The average duration of catheterization required for successful percutaneous treatment was 35 days. This experience suggests that antegrade pyelography has a definite role in the workup of patients suspected of having renal transplant obstruction. The percutaneous access permits successful catheter drainage. Compared with antegrade pyelography, sonography is reasonably accurate in determining the presence of urinary obstruction, although false-positive diagnoses are found in a substantial number of patients. Nuclear renography is not, however, a useful indicator of obstruction owing to its high false-negative rate. Percutaneous treatment of urinary obstruction in transplantation patients proves successful in approximately 50% of cases.

Urinary obstruction in renal transplants: diagnosis by antegrade pyelography and results of percutaneous treatment. Publishing Authors By Initials

TP Smith,DW Hunter,JG Letourneau,AH Cragg,MD Darcy,WR Castaneda-Zuniga,K Amplatz,

For similar diagnosis: diagnostic techniques and procedures: diagnostic imaging: radiography: urography research abstracts see: diagnosis: diagnostic techniques and procedures: diagnostic imaging: radiography: urography research

PUBMED ID PMID:

MEDLINE DATE:

Urinary obstruction in renal transplants: diagnosis by antegrade pyelography and results of percutaneous treatment. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: AJR. American journal of roentgenology

VOLUME: 151

Page Numbers: 507-10

Journal Abbreviation:

ISSN: 0361-803X

DAY: 15

MONTH: Sep

YEAR: 1988

Urinary obstruction in renal transplants: diagnosis by antegrade pyelography and results of percutaneous treatment. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 7708173

Urinary obstruction in renal transplants: diagnosis by antegrade pyelography and results of percutaneous treatment. Keywords Mesh Terms:

KEYWORDS: Urography

MESH TERMS: methods

Chemical & Substance for Abstract: Urinary obstruction in renal transplants: diagnosis by antegrade pyelography and results of percutaneous treatment. Information

Substance Name:

Registry Number:

Grant and Affiliation Information for Urinary obstruction in renal transplants: diagnosis by antegrade pyelography and results of percutaneous treatment.

AFFILIATION: Department of Radiology, University of Minnesota Hospital and Clinic, Minneapolis 55455.

Country: UNITED STATES

AGENCY:

GRANT:

ACRONYM:

MEDLINETA: AJR Am J Roentgenol

REFSOURCE:

DATABASENAME:

ACCESSION NUMBER:

Number Hits: 0

Urinary obstruction in renal transplants: diagnosis by antegrade pyelography and results of percutaneous treatment Related Publications

• "Spiderlon": new device for simple, fast arterial and venous occlusion.
• "Washout" technique for brachiocephalic angioplasty.
• 1990 ARRS Executive Council Award. Intravascular sonography in the detection of arteriosclerosis and evaluation of vascular interventional procedures.
• A device to measure roentgenographic structures.
• A flexible trocar for percutaneous nephrostomy.
• A new percutaneous vena cava filter.
• A new technique for complete temporary occlusion of the ureter.
• A useful projection for demonstrating the bifurcation of the pulmonary artery.
• Angiographic and interventional radiologic considerations in liver transplantation.
• Complete transposition of the great vessels with right and left coronary artery fistulas.
• Direct percutaneous ureterolithotomy.
• Effect of aspirin on angioplasty-induced vessel wall hyperemia.
• Hemodynamic assessment of obstructive aortoiliac disease.
• Improved safety of splenoportography by plugging of the needle tract.
• Intrapericardial herniation of the liver: uncommon cause of massive pericardial effusion in neonates.
• Lower-extremity venography: value of femoral-vein compression.
• Nephrostolithotomy: percutaneous techniques for urinary calculus removal.
• New technique for replacing dislodged T tubes.
• Nonsurgical splenectomy.
• Percutaneous nephrostolithotomy: application to staghorn calculi.
• Short-term prophylaxis of pulmonary embolism by using a retrievable vena cava filter.
• The endocatheter ruler: a useful new device.
• The importance of separation of prostatic lobes in relief of prostatic obstruction by balloon catheter urethroplasty: studies in dogs and humans.
• The relation between arterial and balloon rupture in experimental angioplasty.
• The three types of aortic diverticula.
• Thrombosed synthetic hemodialysis access fistulas: the success of combined thrombectomy and angioplasty (technical note).
• Transhepatic collateral pathway due to vena caval obstruction.
• Urethroplasty with balloon catheter in prostatic hypertrophy.
• Urinary obstruction in renal transplants: diagnosis by antegrade pyelography and results of percutaneous treatment.
• Urine leaks after renal transplantation: value of percutaneous pyelography and drainage for diagnosis and treatment.