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  • Title: [Surgery in pheochromocytoma. 12-year development].
    Author: Kocher T, von Flüe M, Zuber M, Staub JJ, Scheidegger D, Harder F.
    Journal: Schweiz Med Wochenschr; 1994 Jun 04; 124(22):953-6. PubMed ID: 7913249.
    Abstract:
    Hypertension (sustained and/or paroxysmal) is the most common symptom of pheochromocytoma. Correct evaluation nearly always leads to the diagnosis, and complete surgical excision is the definitive treatment. Our study deals with preoperative evaluation, operative morbidity and long-term results after surgery. During the 12-year period (1981-1992) 31 patients (48 years, 25-85) with pheochromocytoma were treated at our institution. The selected preoperative management was reviewed on the basis of patient records. Long-term follow-up was carried out consecutively and personally. All patients received alpha-adrenergic blockers to achieve preoperative normotension and volume repletion. All resections were performed by laparotomy; two of the early cases were extended into the chest. 27 of 29 patients (93.1%) had elevated levels of urinary vanillylmandelic acid; a similar sensitivity was noted in the urinary catecholamines (24/26 = 92.3%). In anatomical localization CT-scan was accurate in 100% (27/27). MIGB scintigraphy was of help in 21 of 23 (91.3%) and, in the most recent patients, MRI was helpful in 3 of 3 (100%). No patient died during the first 30 days after surgery. One patient developed an anaphylactic reaction after cephalosporin administration (morbidity: 3.2%). 2 patients (6.4%) with malignant pheochromocytoma developed a recurrent tumor during the follow-up period. Resection of pheochromocytomas by laparotomy has a low perioperative morbidity and mortality after standardized preparation. A positive MIBG scintigraphy allows extra-adrenal localization. Better resolution and multiplanar imaging are the advantages of MRI. Perioperative management and new imaging techniques--eliminating arteriography and venous sampling among others--have simplified surgical treatment and improved its safety.
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