Table 1.

Table summarizing the case series of endoscopic nasopharyngectomy in the literature to date.

Authors	Location	Number of cases/follow up period (months)	T stage of recurrent disease (UICC 2002 staging)	Resection margin status	Local recurrence	Survival results	Comments
Yoshizaki et al. 200531	Japan	4/Not mentioned	rT2 – 4	Not mentioned	1	Not mentioned
Chen et al., 200734	Taiwan	6/16–59, median 29	rT1 – 3 rT2a – 3	Not mentioned	1	Local control rate 83.3% at 29 months
Rohaizam et al., 200935	Malaysia	6/3–14, median 5	rT1 – 6	Negative – 6	0	All patients alive with no local recurrence
Ko et al., 200936	Taiwan	28/6–32, median 13	rT1 – 12 rT2 – 16	Negative – 25 Positive – 3	7	2-year OS – 57.6% 2-year DFS – 59.4%	3 patients died of ORN 2 patients had synchronous nodal recurrence
Chen et al., 200937	Guangzhou, China	37/6–45, median 24	rT1 – 17 rT2a – 4 rT2b – 14 rT3 – 2	Negative – 36 Positive – 1	8	2-year OS – 84.2% 2-year PFS – 82.6%	1 patient died of intracranial infection 6 months after operation
Tay et al., 200938	Singapore	4/66–120	rT1 – 1 3 unknown	Negative – 1 Positive – 1 Unknown – 2	2	DFS 66–120 months	2 cases were adenocarcinoma
Ho et al., 201239	Stanford, USA	13 (19 surgeries)/3–48.5 mean 24.2	rT1 – 6 rT2a – 3 rT2b – 2 rT3 – 2	Negative – 15 Positive – 4	4	2-year OS 100% 2-year local control – 69.2%
Cuastelnuovo et al., 201340	Italy	27/3–137	rT1 – 12 rT2a – 1 rT3 – 13 rT4 – 1	Not mentioned	?	5-year OS – 72.5% 5-year DFS – 55.6%	Mixed histology including salivary gland cancers and adenocarcinomas
You et al. 201532	Guangzhou, China	72/49.3	rT1 – 32 rT2 – 27 rT3 – 13	Not mentioned	?	5-year OS – 77.1% 5-year LRRFS 67.4%

OS, overall survival; DFS, disease free survival; PFS, progression free survival, LRRFS, loco-regional relapse free survival.