Table 7. Annual distribution of included procedures and recorded outcomes (2011–2023)

Year	Procedures	ENT assessed	CSF leakage, n/N (%)	Sinonasal morbidity, n/N (%)
2011	39	34	0/39 (0.0)	8/34 (23.5)
2012	27	26	0/27 (0.0)	3/26 (11.5)
2013	20	19	0/20 (0.0)	1/19 (5.3)
2014	29	29	0/29 (0.0)	5/29 (17.2)
2015	37	33	2/37 (5.4)	9/33 (27.3)
2016	33	29	2/33 (6.1)	11/29 (37.9)
2017	26	26	0/26 (0.0)	5/26 (19.2)
2018	24	23	5/24 (20.8)	6/23 (26.1)
2019	28	27	2/28 (7.1)	8/27 (29.6)
2020	17	16	1/17 (5.9)	3/16 (18.8)
2021	19	19	0/19 (0.0)	3/19 (15.8)
2022	24	22	1/24 (4.2)	1/22 (4.5)
2023	14	11	0/14 (0.0)	4/11 (36.4)

Counts refer to included pituitary adenoma procedures, not an audited institution-wide surgical volume.
Procedures in 2023 were included through September 21.
CSF, cerebrospinal fluid; ENT, ear, nose, and throat.