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Biomedical subjects

E J Ring

Publications and source records attributed to E J Ring.

171 records · Page 10Linked to original sources
PubMedDate not supplied

Catheter tract hemorrhage during percutaneous biliary intervention: management with use of a retained transhepatic guide wire.

PURPOSE: The authors present their experience in managing freely flowing hemorrhage from immature catheter tracts in patients undergoing biliary drainage. PATIENTS AND METHODS: Transhepatic guide wires were maintained securely whenever catheters were removed from the liver. Six patients among 71 hemorrhaged profusely when drains were manipulated within 4 days of initial catheterization. Management was attempted with use of the transhepatic guide wires. RESULTS: Maneuvers performed over the retained guide wire controlled bleeding in all six patients. Reintubation constituted definitive therapy in five patients. A biliary-portal venous fistula in the remaining patient was treated with thrombin. The retained guide wire proved necessary in all cases. CONCLUSION: Hemorrhage from immature catheter tracts can be managed, often definitively, with maneuvers performed over a retained transhepatic guide wire. Accordingly, a secure transhepatic guide wire is essential prior to removal of hepatic catheters and should remain in place until the absence of bleeding is established. These maneuvers may become increasingly important as courses of biliary catheterization become shorter.

Aged↗
PubMedDate not supplied

Percutaneous transhepatic hepatic venography in the delineation and treatment of Budd-Chiari syndrome.

PURPOSE: To assess the usefulness of percutaneous transhepatic hepatic venography (PTHV) in planning interventional radiologic treatment of Budd-Chiari syndrome (BCS). MATERIALS AND METHODS: Six patients aged 14-56 years underwent examination for BCS. After preliminary transfemoral inferior vena cavography and selective hepatic venography failed in determining the extent of venous obstruction, PTHV was performed. RESULTS: PTHV completely depicted the proximal and distal extent of hepatic venous occlusion. Intraluminal thrombus in the right and middle hepatic veins shown in one patient was treated with fibrinolytic infusion and balloon thrombectomy. Central obstruction of the right hepatic vein shown in two patients was treated with venoplasty or venoplasty and stent placement. In three patients. PTHV showed a "spider web" appearance of diffuse obliteration of the normal intrahepatic venous architecture; a transjugular intrahepatic portosystemic shunt was placed in two of these patients. CONCLUSION: PTHV provides information not available with conventional venography that is useful in planning the treatment of BCS.

Adolescent↗
PubMedDate not supplied

Bleomycin sclerosis of pelvic lymphoceles.

PURPOSE: To describe the results of postoperative pelvic lymphocele treatment by means of percutaneous drainage and sclerosis with bleomycin. MATERIALS AND METHODS: Four patients underwent treatment of pelvic lymphoceles by percutaneous tube drainage followed by instillation of bleomycin under fluoroscopic guidance at a concentration of 1 unit/mL. Bleomycin instillation was repeated at weekly intervals until the tube output was less than 10 mL per day. Three of four patients underwent unsuccessful sclerosis previously with alcohol, doxycycline, or povidone iodine. RESULTS: Lymphocele drainage was reduced to less than 10 mL per 24 hours after bleomycin sclerosis in all patients. Three patients required two sessions, and the fourth patient required three sessions. No patient developed recurrent symptoms suggesting reaccumulation of lymph during an average follow-up period of 11 months (range, 6-18 months). No complications related to percutaneous lymphocele drainage or sclerosant therapy were encountered. CONCLUSION: Percutaneous intracavitary instillation of bleomycin may be considered as an alternative to surgery in patients who have undergone unsuccessful lymphocele sclerosis with other agents.

Adult↗
PubMedDate not supplied

Transcatheter embolization of biopsy-related vascular injury in the transplant kidney: immediate and long-term outcome.

PURPOSE: To assess the effect of transcatheter embolization for treatment of biopsy-related vascular injury in renal allografts, specifically evaluating technical success, clinical benefit, and long-term effect on renal function. MATERIALS AND METHODS: A retrospective review was performed of all postbiopsy renal allograft vascular injuries referred for embolization during a 113-month period. The likelihood of a prolonged detrimental effect on allograft function was estimated from observed variation in serum creatinine levels before and after the procedure. RESULTS: Embolic therapy with use of metallic coils and superselective technique was performed in 21 renal transplant patients. Technical success was achieved in 95% of cases. There were no serious complications. Eradication of the clinical sign or symptom prompting referral was seen in 15 of 17 (88%) patients. Eleven of 19 (58%) patients analyzed demonstrated no evidence of a long-term detrimental effect on allograft function. A detrimental effect was possibly present in six of 19 (32%) patients, and probable in only two of 19 (10%) patients. CONCLUSIONS: Transcatheter embolization can be an appropriate and effective therapeutic choice for biopsy-related renal allograft vascular injury.

Adolescent↗
PubMedDate not supplied

Comparison of the effect of vasopressin infusions on the mesenteric arteries of different species.

Superior mesenteric arteriography was performed following infusions of vasopressin, epinephrine and saline into the superior mesenteric arteries of dogs, pigs, rabbits and monkeys and compared with the well-known effects in human beings. Species-specific effects were noted and compared with the known differences in various vascular beds in human beings. In non-primate animals, vasopressin appeared to act at a more distal site than in primates, but with a similar decrease in superior mesenteric arterial flow. The results in primates were similar to those in human beings.

Adult↗