Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0403608 (ureter)
 9,655 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

We investigated postoperative hydronephrosis in 50 patients (100 ureter) undergoing radical hysterectomy for uterine cervical cancer from Jan. 1989 to Dec. 1991 at Department of Obstetrics and Gynecology in Nagasaki University Hospital. The incidence of hydronephrosis was 68.1% of patients, and hydronephrosis was seen significantly more frequently and was of a higher grade on the right kidney than the left. After one year, hydronephrosis disappeared in 59.1% of patients (65.1% of right kidney, 88.2% of left kidney), and only 2 of 93 kidney have worsened. In cases without hydronephrosis, hydronephrosis developed in only 3 of 31 kidney after one year due to local recurrence or nodule metastasis of the original disease. We compared therapeutic effects of 3 methods (ureteral stent, PNS, no treatment). But there was no significant difference between these methods, we could not determine which was the best treatment. And we observed that indwelling ureteral stent might interrupt spontaneous healing of ureter. Radiotherapy didn't significant influence hydronephrosis after radical hysterectomy; Therefore, we suggest that, in patients with hydronephrosis without other severe urological complications after radical hysterectomy, clinical course should be observed for at least one year, first and them some treatments should be applied if cases worsen gradually than before.
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PMID:[Clinical examination and therapies of hydronephrosis after radical hysterectomy]. 812 Nov 17

We have encountered a 23-year-old pregnant woman with macrohematuria, which occurred from the 8th or 9th week of gestation. Blood pressure and renal function were normal during the total course of pregnancy. Macrohematuria did not disappear after childbirth. Cystoscopy was conducted and the excretion of hematuria from the left ureter was confirmed. Therefore, a left renal venogram was performed although abdominal ultrasonography and CT scanning showed no abnormality. There were two branches of the left renal vein (LRV), such as the anterior and posterior branch. The pressure gradient was 4.4 cm H2O between the anterior branch of LRV and the inferior vena cava (i.v.c.). However, a significant pressure gradient (6.6 cm H2O) was demonstrated between the posterior branch of the LRV and IVC. From these findings we diagnosed this patient as venous hypertension in the posterior branch of the left renal vein (= posterior Nutcracker syndrome, PNS). Enlargement of the uterus in pregnancy might not be important in the occurrence of PNS because macrohematuria was observed from the 8th or 9th week of gestation. Functional hemodynamic change in pregnancy might cause a widening of the diameter or a shift of the aorta, that might result in compression of the posterior branch of the left renal vein. Persistence of macrohematuria after childbirth might have been due to irreversible hemodynamic alteration by the development of co-lateral circulation. To the best of our knowledge, this is the first case of PNS occurring in pregnancy.
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PMID:[A case of posterior nutcracker syndrome occurring in pregnancy]. 948 45