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Τρίτη 24 Αυγούστου 2021

Role of primary tumor resection in patients with metastatic medullary thyroid cancer who have unresectable distant metastases

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Abstract

Background

Whether patients with medullary thyroid carcinoma (MTC) who have unresectable synchronous distant metastases should undergo primary surgical resection (PTR) remains controversial. This study aimed to identify predictive factors associated with the survival of such patients.

Methods

We conducted a retrospective study of patients with MTC who were registered in the Surveillance, Epidemiology, and End Results registry. The overall and cancer-specific mortality rates were assessed using risk-adjusted Cox proportional hazards regression modeling and stratified propensity score matching.

Results

One hundred and eight matched patients were assessed. Patients in the PTR group had lower overall mortality than did those in the non-PTR group. The 1-, 3-, and 5-year overall and cancer-specific survival rates in the PTR group were significantly higher.

Conclusions

PTR appears to be the most appropriate intervention for patients with good performance status. Such patients are likely to benefit from surgery and to experience long-term stable disease.

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