Obstructive uropathy following aortofemoral graft surgery

Area of Science:

• Vascular Surgery
• Nephrology
• Diagnostic Imaging

Background:

• Aortoiliac arteriosclerotic obliteration is a serious condition requiring surgical intervention.
• Aortoiliac or aortofemoral bypass grafting using Dacron prostheses is a common treatment.
• Potential complications, such as hydronephrosis, require careful monitoring.

Purpose of the Study:

• To evaluate the incidence of hydronephrosis in patients following aortoiliac or aortofemoral bypass surgery.
• To assess the utility of ultrasound in detecting post-surgical hydronephrosis.
• To discuss pathogenic mechanisms and therapeutic strategies for hydronephrosis in this patient cohort.

Main Methods:

• Real-time sectorial ultrasound examination was performed on fifty patients.
• Patients had previously undergone aortoiliac or aortofemoral bypass with a bifurcated Dacron graft.
• Follow-up assessments were conducted, with a minimum of one year post-surgery.

Main Results:

• Hydronephrosis was detected in only one out of fifty patients (2% incidence).
• The low observed incidence may be attributed to spontaneous resolution of early-stage hydronephrosis within the first postoperative year.
• Ultrasound proved to be an effective screening tool for hydronephrosis.

Conclusions:

• The incidence of hydronephrosis after aortoiliac or aortofemoral bypass surgery is low.
• Preoperative and postoperative ultrasound screening, with follow-up extending beyond one year, is strongly recommended for patients undergoing aortoiliac or aortofemoral reconstructive surgery.
• Understanding potential pathogenic mechanisms and therapeutic options is crucial for managing this complication.