Trial reportRetina (Philadelphia, Pa.)2026
COMPARATIVE FLOW AND OPERATING EFFICIENCY OF TWO-DIMENSIONAL CUTTING VELOCE 27-GAUGE VITRECTOME.
Trial report in Retina (Philadelphia, Pa.), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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3 authors.
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Abstract
purposeTo evaluate comparative aspiration flow rates and core vitrectomy times of a reengineered 27-gauge (G) 20,000 cuts per minute (CPM) dual action cutting (two-dimensional cutting [TDC]) vitrectomy probe (TDC Veloce; DORC International B.V.) versus a standard 27-G 16,000 CPM TDC probe (DORC).
methodsIn vitro investigations assessed comparative aspiration flow rates in Newtonian and non-Newtonian fluids using EVA Nexus system (DORC). In an accompanying single-surgeon randomized controlled clinical study, core vitrectomy duration in patients undergoing 27-G vitrectomy using either a TDC Veloce or regular TDC probe, both in combination with EVA Nexus (n = 42), was compared.
resultsSignificantly higher aspiration flow rates were achieved with the 27-G TDC Veloce probe compared with a 27-G TDC probe. The overall percentage increase in flow for TDC Veloce probe versus TDC probe was 31%, 69%, and 37% in water, artificial vitreous solution, and porcine vitreous, respectively ( P < 0.001). Higher flow rates stabilized at cut speeds greater than 16,000 CPM. The mean (SD) core vitrectomy time (seconds) was 59.5 (6.1), 58.2 (3.3), and 98.6 (7.9) for the TDC Veloce 20,000 CPM, TDC Veloce 16,000 CPM, and TDC 16,000 CPM groups, respectively. The mean difference between the TDC Veloce 20,000 CPM and TDC 16,000 CPM groups was -39.1 seconds (95% CI: -44.57 to -33.63, P < 0.0001).
conclusionIncreased flow with the 27-G TDC Veloce probe resulted in a significantly shorter core vitrectomy time compared with a standard 27-G TDC probe, suggesting greater procedural efficiency during vitrectomy with the modified vitrectome.
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