Endoscopic ear surgery: A case series and first United Kingdom experience

Table 4 CSOM and cholesteatoma surgery

No.	Age	Details	Side	Duration (min)	Previous ipsilateral surgery	Pre-op mean air-bone gap1	Post-op mean air-bone gap1	Closure	Graft material	Follow up (mo)	Complications
Endoscopic assisted, Group A
1	42	Mastoidectomy	L	211	No	7.5	7.5	No change	Temporalis fascia	6	None
2	40	Revision mastoidectomy	R	155	Yes	40	40	No change	Not stated	3	None
3	7	Tympanoplasty and mastoid exploration	L	169	Yes	13.75	5	Overclosure	Conchal cartilage	3	None
4	35	Tympanotomy	L	48	No	25	25	No change	Not stated	2	None
5	18	CWU mastoidectomy	L	195	No	7.5	17.5	Within 10 dB	Conchal cartilage	7	None
6	52	CWU mastoidectomy	L	287	Yes	20	18.75	> 30 dB	Tragal cartilage	6	None
7	13	Revision CWU mastoidectomy	L	188	Yes	11	25	> 30 dB	Tragal cartilage	2	None
8	47	MR mastoidectomy	R	287	No	27.5	23.75	Within 10-30 dB	Not stated	2	None
9	40	MR mastoidectomy	L	223	Yes	Data unavailable	16.25	Within 10-30 dB	Tragal cartilage	2	Post op. pain
10	28	Revision MR mastoidectomy	L	228	Yes	21.25	21.25	No change	Not stated	4	None
11	41	Revision MR mastoidectomy	L	140	Yes	31.25	31.25	No change	Not stated	4	None
12	35	Revision MR mastoidectomy	R	95	Yes	42.5	42.5	No change	Not stated	6	None
13	85	Revision MR mastoidectomy	L	110	Yes	20	20	No change	Not stated	11	None
14	68	Revision MR mastoidectomy	L	155	Yes	45	50	No change	Temporalis fascia	3	None
15	43	Revision MR mastoidectomy		78	Yes	Dead ear	Dead ear	No change	Not stated	4	Transient delayed facial palsy
Non-endoscopic assisted, Group B
1	8	CWU mastoidectomy	L	220	No	17.5	12.5	Within 10-30 dB	Temporalis fascia	12	None
2	52	CWU mastoidectomy	L	286	No	27.5	25	> 30 dB	Not stated	7	None
3	13	Revision CWU mastoidectomy	L	189	Yes	7.5	30	Within 10-30 dB	Tragal cartilage	5	None
4	70	MR mastoidectomy	L	131	No	13.75	20	> 30 dB	Composite tragal graft	3	None
5	42	MR mastoidectomy	R	255	No	28.75	35	> 30 dB	Temporalis fascia	3	None
6	34	MR mastoidectomy	R	312	No	33.75	37.5	> 30 dB	Composite tragal graft	2	None
7	73	Revision MR mastoidectomy	L	150	Yes	Dead ear	Dead ear	No change	Tragal cartilage	9	None
8	77	Revision MR mastoidectomy	L	179	Yes	2.5	21.25	Within 10-30 dB	Tragal Cartilage	8	None
9	56	Revision MR mastoidectomy	L	251	No	20	10	Within 10-30 dB	Temporalis ascia	4	None
10	78	Revision MR mastoidectomy	R	199	No	Dead ear	Dead ear	No change	Not stated	6	None

¹Mean gap calculated over 4 frequencies (500 Hz, 1 KHz, 2 KHz, 4 KHz). CWU: Canal wall up mastoidectomy; MR: Modified radical mastoidectomy.