Comparison of peristaltic and Venturi pumps in bimanual microincisional cataract surgery

Abstract

Comparison of peristaltic and Venturi pumps in bimanual microincision phacoemulsification on the success of the cataract surgery by using sleeveless phaco tip. Bimanual microincision phacoemulsification was done in 49 eyes using a 1.4-mm temporal clear corneal incision. A peristaltic pump was used in 23 eyes, and a Venturi pump was used in 26 eyes for phacoemulsification. Intraoperative complications, anterior chamber stability, and mean duration of surgery were recorded. Duration of surgery was shorter in the Venturi pump group. Anterior chamber stability could not be established in 17 eyes in the peristaltic pump group; it was established in all eyes in the Venturi pump group. Corneal burns were observed in two eyes in the peristaltic pump group and no eyes in the Venturi pump group. Use of a Venturi pump system and a vented gas-forced infusion system can significantly shorten surgery time and reduce risk of thermal burns.

Prospective randomized comparative study between venturi and peristaltic pumps in WhiteStar Signature^® phacoemulsification machine

“…They found venturi pump to be more efficient, safer, and less prone to create surge and thermal burns. Although using different technique and machines, the results were similar to our study 12…”

“…There were no surgical complications, and we believe that the two pump configurations are equally safe when an experienced surgeon performs the procedure. Other experimental and clinical papers in the literature have confirmed these findings 5,11,12…”

“…Karaguzel et al12 compared venturi and peristaltic pumps in bimanual microincision cataract surgery, with sleeveless tips, using two different phacoemulsification machines. They found venturi pump to be more efficient, safer, and less prone to create surge and thermal burns.…”

Retrospective Analysis of the Performance of a New-Generation Dual Pump Phaco System Using Two Sizes of Phaco Tips in Cases with Different Nuclear Hardness

“…The highest level of phacodynamics control is currently reached with the hybrids or dual pump phacoemulsification systems that combine peristaltic and Venturi pumps, making use of the advantages of both pump options [7] [8]. Venturi-based vacuum provides increased efficiency and decreased chatter at lower vacuum levels [9].…”

Assessment of irrigation dynamics in magnetic-resonance guided laser induced thermal therapy (MRgLITT)

“…Irrigation proceeds through a peristaltic pump, which is a positive displacement pump comprised of a rotor with multiple rollers. Moving circumferentially, this rotor pumps fluids along a flexible tube by segmental occlusion [18]. The peristaltic pump allows for different speeds of rotor movement at graded settings from 1-10.…”