TABLE 3.
Failures by Technician According to Number of Attempted Descemet Membrane Endothelial Keratoplasty Preparations and Number of Prior Descemet Stripping Automated Endothelial Keratoplasty Preparations
| No. of Attempted DMEK Tissue Preparations |
Technician 1 Failures (395 Previous DSAEK Preparations) |
Technician 2 Failures (2745 Previous DSAEK Preparations) |
Technician 3 Failures (137 Previous DSAEK Preparations) | Total Failures for Technicians 1, 2 and 3 |
|---|---|---|---|---|
| 0 to 50 | 5 (diabetes mellitus was a possible risk factor for failure; P = .056) |
0 | 6 | 11 |
| 51 to 100 | 1 | 1 | 7 (age [P = .027], diabetes mellitus [P = .035], and hyperlipidemia [P = .032] were possible risk factors for failure) |
9 |
| 101 to 150 | 0 | 5 (age was a possible risk factor for failure; P = .095) |
2 | 7 |
| 151 to 200 | 0 | 1 | – | 1 |
| 201 to 250 | 1 | – | – | 1 |
| 251 to 267 | 0 | – | – | 0 |
| Total failures for each technician |
7 (in 267 DMEK attempts; 2.6%) | 7 (in 162 DMEK attempts; 4.3%) | 15 (in 134 DMEK attempts; 11.2%) | 29 (in 563 DMEK attempts; 5.2%) |
DMEK = Descemet membrane endothelial keratoplasty; DSAEK = Descemet stripping automated endothelial keratoplasty.