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Am J Surg. 1996 Jan;171(1):27-31.

Cryoablation of unresectable malignant liver tumors.

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1
Department of Surgery, Mount Sinai School of Medicine, New York, New York, USA.

Abstract

BACKGROUND:

Unresectable malignant liver tumors, particularly metastases of gastrointestinal origin, are rapidly lethal in a vast majority of patients, regardless of treatment.

PATIENTS AND METHODS:

We evaluated 58 patients by laparoscopy and/or laparotomy. Thirty-nine were treated with cryoablation of liver tumors using a liquid-nitrogen cryoprobe delivering a tumoricidal temperature of -196 degrees C with intraoperative ultrasound monitoring. Histologic evaluation showed that 25 patients had colorectal metastases, 3 had gastric tumors, 4 hepatocellular carcinomas, 6 carcinoids, and 1 gastrinoma.

RESULTS:

All patients who received complete cryoablation are alive with a mean follow-up of 14 months. Five whose treatment could not be completed died between 3 and 9 months postoperatively. Thirteen patients (28%) have recurrent disease and 20 (51%) have no evidence of disease. There were no operative mortalities. Postoperative transient elevation of liver function tests and thrombocytopenia were noted. All patients received postoperative chemotherapy.

CONCLUSION:

Cryoablation is an active and safe treatment for advanced liver malignancies.

PMID:
8554146
[Indexed for MEDLINE]
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