Percutaneous trans-hepatic gelfoam-cyanoacrylate glue embolization for ruptured post-traumatic hepatic artery pseudo-aneurysm in a limited-resource scenario

Duplex Ultrasound-guided Direct Percutaneous Management of Pseudoaneurysm of Branch of Segmental Renal Artery: Technique and Its Outcome

OBJECTIVE

To describe the role of duplex ultrasound imaging (DUI) in prompt diagnosis of pseudoaneurysm (PSA) of a branch of the segmental renal artery (b-SRA) and to evaluate outcomes of DUI directed percutaneous embolization.

MATERIALS AND METHODS

Forty-five patients were referred to us for the management of intractable renal hematuria. A total of 20 cases (44.44%) had developed PSA after nephrolithotomy, 12 cases (12.66%) had developed PSA after guided renal biopsies, 6 cases (13.33%) had developed PSA following road side trauma, and 2 cases (4.44%) of the tuberous sclerosis complex had developed PSA. Three cases (6.66%) of arteriovenous and 2 cases (4.44%) of arteriocalyceal fistulae had been excluded from the study. DUI-guided direct percutaneous management (DPM) was done as a 4-step process. First is the identification of PSA sac in the neck and offending b-SRA. Second is the puncture of PSA sac with 18 g puncture needle under DUI. Subsequently, manual injection of temporary embolic agent was done followed by N-butyl cyanoacrylate glue. Thrombosis of the PSA sac was confirmed by absent flow on DUI.

RESULTS

Forty cases of b-SRA were managed successfully in a single session and followed up by clinical findings, DUI, and computed tomography angiography. There was no need for the second session of DPM, transarterial embolization, or surgery in this cohort. Twelve cases (30%) had developed a mild fever and were managed conservatively. All 40 cases had no evidence of renal hematuria after follow-up of 3 months.

CONCLUSION

DUI-guided DPM is a safe, feasible, cost-effective, and nephron-sparing promising alternative to TAE or surgery for management of PSA of b-SRA.

Evaluation of percutaneous microwave coagulation therapy for hepatic artery injury

Objectives

To evaluate the in vivo efficacy of 915 MHz percutaneous coagulation in the treatment of hepatic artery injury.

Methods

After inducing hepatic artery injury, 8 dogs in each group underwent 915 MHz microwave percutaneous coagulation therapy and 8 dogs were injected with batroxobin and α-cyanoacrylate.

Results

The hemostatic effects of 915 MHz microwave were better than drug injection, and the amount of bleeding was significantly lower (p < 0.05). Pathological examination showed that vessel wall necrosis were greater.

Conclusion

Contrast ultrasound guided 915 MHz microwave percutaneous coagulation treatment has potent hemostatic effects in the repair of in vivo hepatic artery injury.

An innovative modification of sandwich embolization technique for simultaneous management of ruptured pseudoaneurysm of branch of splenic artery and hypersplenism syndrome

Pancreatitis induced ruptured pseudoaneurysm (PSA) of the peri-pancreatic and splenic arteries may become a source of life-threatening hemorrhage. Its management is challenging and requires an individualized and multidisciplinary approach. The index case is a 32-year-old chronic alcoholic male presented with multiple episodes of hematemesis and melena. Pathological and imaging findings were consistent with anemia and acute pancreatitis with ruptured PSA of branch of splenic artery, portal cavernoma formation, and splenomegaly. Thrombosis of PSA sac, embolization of offending branch of splenic artery, and splenic infarction were successfully contemplated in a single session by direct percutaneous embolization with gelfoam and glue as embolic agents under guidance of duplex ultrasound imaging. We describe a modified sandwich embolization technique, its long-term success and complications of simultaneous management of ruptured PSA of branch of splenic artery and hypersplenism syndrome in limited resource scenario.