Use of Helical CT in Assessment of Crossing Vessels in Pelviureteric Junction Obstruction

Lacey, N; Massouh, H.

doi:10.1053/crad.1999.0367

Cited by 12 publications

(14 citation statements)

References 15 publications

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“…[3] This has been disputed in some of the recent literature, which has shown that in some patients, the underlying ureter is entirely normal and surgical relocation of the vessel alone has been therapeutic. [3] Whether there is a cause and effect relationship or not, there is no controversy regarding the importance of the identification of these vessels before deciding on the choice of therapy (open pyeloplasty vs endopyelotomy). Endoscopic treatment has a 90% success rate, which drops to 40% in the presence of crossing vessels.…”

Section: Discussionmentioning

confidence: 99%

Case report: Anomalous systemic drainage of ileocolic veins (veins of Retzius) causing pelviureteric junction obstruction

Maheshwari

Shammam

2008

Indian J Radiol Imaging

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Section: Discussionmentioning

confidence: 99%

Case report: Anomalous systemic drainage of ileocolic veins (veins of Retzius) causing pelviureteric junction obstruction

Maheshwari

Shammam

2008

Indian J Radiol Imaging

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“…This examination was performed in a standardized fashion. In nine patients the preoperative MAG3 renography was substituted with computed tomography (CT) urography, which has been proven an accurate and useful non-invasive imaging technique for the surgical planning (treatment) of UPJ obstruction (19).…”

Section: Methodsmentioning

confidence: 99%

Changes of arterial pressure following relief of obstruction in adults with hydronephrosis

Al-Mashhadi

Häggman

Läckgren

et al. 2018

Upsala Journal of Medical Sciences

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Background: As much as 20% of all cases of hypertension are associated with kidney malfunctions. We have previously demonstrated in animals and in pediatric patients that hydronephrosis causes hypertension, which was attenuated by surgical relief of the ureteropelvic junction (UPJ) obstruction. This retrospective cohort study aimed to investigate: (1) the proposed link between hydronephrosis, due to UPJ obstruction, and elevated arterial pressure in adults; and (2) if elevated blood pressure in patients with hydronephrosis might be another indication for surgery.Materials and methods: Medical records of 212 patients undergoing surgical management of hydronephrosis, due to UPJ obstruction, between 2000 and 2016 were assessed. After excluding patients with confounding conditions and treatments, paired arterial pressures (i.e. before/after surgery) were compared in 49 patients (35 years old; 95% CI 29–39). Split renal function was evaluated by using mercaptoacetyltriglycine (MAG3) renography before surgical management of the hydronephrotic kidney.Results: Systolic (−11 mmHg; 95% CI 6–15 mmHg), diastolic (−8 mmHg; 95% CI 4–11 mmHg), and mean arterial (-9 mmHg; 95% CI 6–12) pressures were significantly reduced after relief of the obstruction (p < 0.001). Split renal function of the hydronephrotic kidney was 39% (95% CI 37–41). No correlations were found between MAG3 and blood pressure level before surgery or between MAG3 and the reduction of blood pressure after surgical management of the UPJ obstruction.Conclusions: In adults with hydronephrosis, blood pressure was reduced following relief of the obstruction. Our findings suggest that elevated arterial pressure should be taken into account as an indication to surgically correct hydronephrosis.

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“…Classic angiography is presently superseded by modern techniques, such as endoluminal ultrasound [16,21], helical computed tomography (CT) with CT angiography [22][23][24], magnetic resonance imaging [25], and contrast-enhanced color Doppler imaging [26].…”

Section: Risk Factorsmentioning

confidence: 99%

The role of endourology in ureteropelvic junction obstruction

2001

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Endopyelotomy has benefited from abundant confirmatory investigations, and significant progress in different technical modalities has occurred. Retrograde techniques, including the Acucise (Applied Medical, Laguna Hills, CA) cutting balloon and the ureteroscopic Holmium laser incision, are becoming preferred approaches while the other modalities retain their specific indications. Long-term results and potential complications have been carefully studied and reported. Better identification of risk factors has prompted precise preoperative investigations and allowed for careful patient selection, leading to improved results. These results approach those of open pyeloplasty, but with minimal morbidity.

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Use of Helical CT in Assessment of Crossing Vessels in Pelviureteric Junction Obstruction

Cited by 12 publications

References 15 publications

Case report: Anomalous systemic drainage of ileocolic veins (veins of Retzius) causing pelviureteric junction obstruction

Case report: Anomalous systemic drainage of ileocolic veins (veins of Retzius) causing pelviureteric junction obstruction

Changes of arterial pressure following relief of obstruction in adults with hydronephrosis

The role of endourology in ureteropelvic junction obstruction

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