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Biomedical subjects

R Marsan

Publications and source records attributed to R Marsan.

10 recordsLinked to original sources
PubMed2000

Portoenterostomy: an old treatment for a new disease.

HYPOTHESIS: Portoenterostomy may be an effective treatment for patients sustaining a thermal injury to the hepatic duct confluence during laparoscopic cholecystectomy. DESIGN: Case series. SETTING: A tertiary care referral hospital. PATIENTS: A consecutive series of 5 female patients referred and treated between November 13, 1991, and December 17, 1998. Ages ranged from 29 to 65 years. In addition to the ductal injuries at or above the hepatic duct confluence, 3 patients also had a major hepatic vascular injury. The patients were available for follow-up for 7 to 91 months postoperatively. INTERVENTIONS: All patients underwent a portoenterostomy (Kasai procedure) with suturing of a Roux limb to the hepatic tissue surrounding the transected hepatic ducts. Transhepatic stents were inserted either preoperatively or postoperatively for rising liver enzyme levels in 4 patients. MAIN OUTCOME MEASURES: Symptoms and results of liver function tests. RESULTS: Stents remained in place for 9 to 25 months in 4 patients. All 5 patients were symptom free and functioning normally; 3 had normal liver functions; 2 had mildly elevated alkaline phosphatase levels only. CONCLUSION: Portoenterostomy, usually in combination with postoperative stenting, may be an option to consider in life-threatening injuries involving the hepatic duct bifurcation in which standard biliary reconstruction techniques are not feasible.

Acute Disease↗
PubMed1997

Aortoventricular fistula secondary to blunt trauma: a case report and review of the literature.

An aorto-right ventricular fistula secondary to nonpenetrating trauma is described. Review of the literature is reported. Ascending aortic injuries present as either traumatic pseudoaneurysms or, less commonly, as aortocardiac fistulas. Blunt cardiac injury is a frequent concomitant injury and contributes to the high mortality of this lesion. Prompt surgical intervention is required for survival.

Aortic Diseases↗
PubMed1996

Renal computed tomography with 3-dimensional angiography and simultaneous measurement of plasma contrast clearance reduce the invasiveness and cost of evaluating living renal donor candidates.

Renal computed tomography (CT), 3-dimensional CT angiography (3D-CTA), and simultaneous measurement of glomerular filtration rate (GFR) by x-ray fluorescence determination of plasma contrast clearance (PCC) are alternatives to intravenous urography (IVU), renal arteriography (RA), and 24-hr urine creatinine clearance (CrCl) for evaluation of renal structure and function in living renal donor (LRD) candidates. To determine if CT, 3D-CTA, and PCC provide data comparable to IVU, RA, and CrCl, both methods were used to evaluate 23 LRD candidates. Costs were also compared. Conventional RA identified 19 accessory arteries and one case of medial fibroplasia. Each of these anomalous vessels was recognized on 3D-CTA. Venous anatomy was more clearly delineated on 3D-CTA than the venous phase of conventional RA. CT demonstrated 3 benign cysts and a single, small intraparenchymal calcification in 3 renal units. GFRs measured by PCC and CrCl were 91 +/- 4 and 132 +/- 7 ml/min/1.73m2, respectively (r = 0.64, P < 0.05). Total cost for CT/3D-CTA/PCC was 46% less than that of IVU/RA/CrCl and 40% less than RA/CrCl. CT/3D-CTA/PCC provided reliable structural and functional data at substantially less cost, discomfort, and inconvenience to the living renal donor candidate. As such, CT/3D-CTA/PCC is superior to conventional methods for evaluation of the living renal donor candidate.

Adult↗
PubMed1994

A new method to obtain a tissue diagnosis of proximal bile duct tumors.

Klatskin tumors often pose a challenge for diagnosis and treatment. Most of these neoplasms are diagnosed clinically because of the difficulty in obtaining tissue that will provide histologic proof of the disease. When a non-operative course is sought, exhaustive attempts should be made to obtain a tissue diagnosis because of the potential for a false-positive clinical diagnosis. We describe a new way to obtain tissue for diagnosis by placing a laparoscopic choledochoscope through a percutaneous transhepatic cholangiogram track, thus allowing the tumor to be directly visualized and biopsied.

Bile Duct Neoplasms↗
PubMed1976

Acute hemorrhagic cerebellar infarction following angiography.

Cerebellar infarction following cerebral angiography is an unusual complication. A case is reported. The patient's condition deteriorated with each diagnostic study. Improvement occurred after cerebellar decompression and evacuation of an intracerebellar hematoma.

Cerebellar Diseases↗