RESUMEN
We report the successful surgical treatment of two cases of renal vein thrombosis, each occurring early after kidney transplantation. Prompt intervention was a result of accurate diagnosis by color Doppler ultrasonography. Invasive radiological procedures were not useful. Although recent advances in thrombolytic therapy have created several alternatives to open surgery, the rationale for surgical exploration in these cases was to remove the thrombus quickly, to avoid the postoperative bleeding complications of thrombolytic therapy, and to correct any technical or anatomic problems.
Asunto(s)
Trasplante de Riñón , Venas Renales/cirugía , Trombectomía , Trombosis de la Vena/cirugía , Adulto , Humanos , Masculino , Persona de Mediana Edad , Periodo Posoperatorio , Venas Renales/diagnóstico por imagen , Ultrasonografía Doppler en Color , Trombosis de la Vena/diagnóstico por imagenRESUMEN
OBJECTIVES: To compare the results of plain abdominal films, tomography, ultrasonography and spiral computed tomography in the detection of residual stone fragments after extracorporeal lithotripsy or percutaneous nephrolithotomy. MATERIAL AND METHODS: Prospective study on 31 patients and 40 renal units comparing the results obtained by plain abdominal films, tomography, ultrasonography and spiral CT. RESULTS: This study demonstrates the superiority of spiral CT over the other examinations for detection of renal stones (sensitivity of 100% for spiral CT, 89.2% for tomography, 82.1% for plain abdominal films and 67.8% for ultrasonography), determination of their number (n = 68, 58, 60 and 27, respectively) and demonstration of millimetric stones (100%, 69.4%, 67.8% and 2.7%, respectively). CONCLUSION: Spiral CT is the method of renal stone imaging which provides the most reliable diagnosis of radiopaque, non radiopaque, millimetric or centimetric stones, regardless of local anatomical conditions.
Asunto(s)
Diagnóstico por Imagen , Cálculos Renales/diagnóstico , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Cálculos Renales/patología , Cálculos Renales/terapia , Litotricia , Masculino , Persona de Mediana Edad , Nefrostomía Percutánea , Estudios Prospectivos , Ultrasonografía/métodosRESUMEN
OBJECTIVES: The objective of this study was to determine, ex vivo, the limitations of spiral computed tomography (CT) in the detection of renal stones. MATERIAL AND METHODS: Twelve fragments of calcium oxalate stones, 1 to 10 millimetres in diameter, were introduced into 3 porcine kidneys. Spiral CT was then performed on these kidneys. RESULTS: All stones, regardless of their dimensions, were detected with a sensitivity and specificity of 100%. Measurement of these stones on spiral CT showed a magnification factor and a distortion phenomenon which varied according to the table speed and collimation. CONCLUSION: In this study, spiral CT demonstrated excellent performances in the detection of renal stones, even for the smallest stones, measuring 1 mm in diameter.