Table 1a.
Characteristics of studies with a follow-up period of minimum 12 months
| Publication | Study setting | Level of evidence | n (patients) | n (ears) | Age (years) (mean) [range] | Follow-up (months) [range] | Dilation instrument; inflation pressure and time |
|---|---|---|---|---|---|---|---|
| Silvola et al., 2014 [8] | Prospective case series | 4 | 37 (36 at the end of the follow-up) | 42 (41 at the end of the follow-up) | 48 [15–38] | Mean 30, [18–50] | Acclarent Relieva Solo 7×16 mm; 15 cases 12 bar, 1 min, 26 cases 12 bar 1 minx2 |
| Schröder et al., 2015 [10] | Retrospective case series | 4 | 622 | Total 1076 2 months: 506 of 1029 1 year: 188 of 671 2 years: 34 of 344 3 years: 11 of 119 4 years: 2 of 17 |
No mean reported [7–84] | [2–48] | Spiggle & Theis 3.3×20 mm; 10 bar, 2 min |
| Dalchow et al., 2016 [9] | Prospective case series | 4 | Total 217 1 month: 175 3 months: 92 6 months: 43 9 months: 29 12 months: 19 |
342 | Median 46 [6–88] | [1–12] | Spiggle & Theis 3.3×20 mm; 10 bar, 2 min |
| Xiong et al., 2016 [11] | Retrospective case series | 4 | 40 | 58 | 42 [21–70] | 12 | Spiggle & Theis 3.3×20 mm; 10 bar, 2 min |
| Leichtle et al., 2017 [2] | Retrospective case series | 4 | Total 52 2 weeks: 41 2 months: 38 6 months: 27 12 months: 14 |
97 | 7 [3–15] | [0–12] | Spiggle & Theis, 3.2×20 mm; 8 bar, 2 min |