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Biomedical subjects

R F Mattern

Publications and source records attributed to R F Mattern.

9 recordsLinked to original sources
PubMed1982

Percutaneous drainage of pancreatic pseudocysts and abscesses.

The use of percutaneous drainage is reported in 6 patients with pancreatic pseudocysts and 6 patients with pancreatic abscesses. There have been no recurrences in the patients with pseudocysts. The success of the procedure is attributed to providing catheter drainage until the cavity was obliterated (mean time, 8 days), rather than using a single-needle aspiration. Percutaneous drainage of 6 pancreatic abscesses allowed desperately ill patients to improve enough to undergo elective surgery, and obviated surgery in 3 patients. The technique was performed without complications in all cases. Percutaneous drainage should find a significant place in the management of patients with complications of pancreatitis.

Abscess↗
PubMed1981

Non-surgical drainage of intra-abdominal and mediastinal abscesses: a report of twelve cases.

Twelve patients with intra-abdominal or mediastinal abscesses were treated by percutaneous drainage. Three abscesses were subphrenic, three were adjacent to enteric leaks, two were intrahepatic, two were pancreatic pseudocysts, one was a pancreatic abscess extending to the lesser sac, and one was an infected adrenal hematoma. All 12 lesions were entered percutaneously using fluoroscopic guidance without traumatizing the adjacent normal tissue. Localization was frequently aided by computed tomography. Various catheters were positioned using basic angiographic techniques. Following drainage all patients had a favorable clinical response. Seven of the 12 patients required no surgical management. Careful radiologic follow-up and frequent changing of catheters was necessary in six of the patients. Two patients benefited from the addition of auxiliary drains. Five of the 12 patients were electively operated upon because of incomplete drainage of the abscess cavity. Causes of failure were: persistent anastomotic leak (two patients), sequestered, loculated extension of abscess cavity (two patients), or necrotic, viscous hepatic tissue requiring removal at laparotomy (one patient).

Abscess↗
PubMed1981

Renal angioplasty for hypertension: predictive factors for long-term success.

Percutaneous transluminal angioplasty was performed in 31 hypertensive patients with primary success in 26 patients (83%). Twenty-three patients had a mean follow-up of 13 months. The cure rate was 30% with a further 26% being improved. However, in the group of patients with lateralizing renal vein renin values, the cure rate rose to 47% with a further 33% improved. Of the eight patients with fibromuscular disease, 83% were normotensive without medication at follow-up; in the 13 patients with atherosclerotic disease, 22% were cured and 44% were classified as improved. Patients with fibromuscular disease and lateralization of renin production are the best candidates for long-term success.

Adult↗