Table 5. Failure patterns of 20 out of the 60 patients who received SMART combined with chemotherapy.

First sites of failure	No	%
Distant metastasis	10	16.7
Regional recurrence	4	6.7
Local recurrence	4	6.7
Local and regional recurrence	1	1.7
Regional and distant	1	1.7

Abbreviations: EC: esophageal cancer. SMART: simultaneous modulated accelerated radiotherapy.