Table 1.

Clinical Summary of 21 Patients Who Underwent Transsphenoidal Endoscopic Repair of Sphenoid Sinus CSF Leak

Patient Number	Age/Sex	U/B	Cause of Fistula	β2-Transferrin	CTC	HRCT	MRC	Fistula Size	POLD	Second Surgery
U/B, unilateral/bilateral; CTC, computed tomography cisternography; HRCT, high-resolution computed tomography; MRC, magnetic resonance cisternography; POLD, postoperative lumbar drainage; F/M, female/male; NA, not applicable; SSE, sphenoid sinus encephalocele; SSM, sphenoid sinus meningeocele; + ve, positive; − ve, negative.
1	50/F	U	post surgical	+ ve	+ ve	+ ve	NA	1.7	3	no
2	44/F	U	SSE	− ve	+ ve	NA	+ ve	0.5	4	no
3	42/F	U	idiopathic	+ ve	+ ve	+ ve	NA	1.3	5	no
4	38/F	B	idiopathic	+ ve	− ve	NA	+ ve	1	7	yes/VP shunt
5	33/F	U	idiopathic	+ ve	+ ve	+ ve	NA	0.5	4	no
6	35/F	U	SSM	NA	+ ve	+ ve	NA	1.1	4	no
7	56/F	U	idiopathic	+ ve	+ ve	NA	NA	1.5	6	yes/VP shunt
8	60/F	U	post surgical	+ ve	+ ve	+ ve	NA	1.6	3	no
9	35/F	B	idiopathic	− ve	+ ve	NA	+ ve	0.8	4	no
10	66/F	U	idiopathic	+ ve	− ve	+ ve	NA	0.8	4	no
11	55/F	U	SSM	+ ve	+ ve	NA	NA	0.9	4	no
12	49/F	U	idiopathic	+ ve	+ ve	NA	NA	2	4	no
13	37/F	U	post meningitis	+ ve	+ ve	+ ve	NA	1.7	3	no
14	34/F	U	idiopathic	NA	+ ve	+ ve	NA	1.5	4	no
15	41/F	B	idiopathic	+ ve	+ ve	NA	NA	2	5	no
16	47/M	U	post surgical	+ ve	+ ve	NA	NA	1.6	4	no
17	68/M	U	SSM	NA	+ ve	+ ve	NA	1.5	4	no
18	52/M	U	idiopathic	+ ve	+ ve	NA	+ ve	2	4	no
19	46/M	B	idiopathic	+ ve	+ ve	NA	NA	1.6	4	no
20	41/M	U	post meningitis	+ ve	+ ve	+ ve	NA	1	4	no
21	50/M	U	idiopathic	− ve	+ ve	+ ve	+ ve	1.2	3	no