ABSTRACT
Background: Cataract is a frequent surgical procedure performed worldwide. The study compared lidocaine 4% drops with 2% gel on surgeon抯 comfort, need for supplemental anaesthesia and duration of surgery in patients who underwent manual small incision cataract surgery.Methods: This was a Prospective, Comparison study conducted at a Single centre by multiple surgeons. Patients enrolled for surgeries were divided into Group A: Lidocaine 4% drops 1ml was instilled in the conjunctival sac 5 minutes before surgery and Group B: Lidocaine 2% gel 2ml was applied. Endpoints evaluated were surgeon抯 comfort, need for supplemental anesthesia and duration of surgery.Results: The mean duration of surgery for gel was 20�minutes as compared to 29�minutes with drops (p*- value<0.001). 26 (87%) patients in gel did not require any supplemental anesthesia as compared to 3 (10%) patients in drops. Peribulbar supplementation was required for 20 (67%) patients in drops as compared to 1 (3%) patient in gel (p*- value<0.001). 26 (87%) patients in gel were operated comfortably by the surgeon as compared to 2 (6%) patients in drops. Mild to Moderate discomfort was experienced by the surgeon in operating 27 (90%) patients in drops as compared to 3(10%) patients in gel (p*- value<0.001).Conclusions: The surgeons were more comfortable using gel with least requirement of supplemental anaesthesia and faster completion compared to drops.
ABSTRACT
Background: Cataract is globally acknowledged leading cause of blindness. This study was undertaken to compare the effects of Lidocaine 4% drops with 2% gel on intra operative and post-operative pain in patients who underwent manual small incision cataract surgery.Methods: It was a single Centre, one-surgeon, prospective, comparison study. Patients enrolled for surgeries were divided into Group A: Lidocaine 4% drops 1 ml was instilled in the conjunctival sac 5 minutes before surgery and Group B: Lidocaine 2% gel 2ml was applied. Endpoints evaluated were ocular pain of patient during and after surgery.Results: A total of 60 patients underwent MSICS, out of which 30 each received drops and gel. Mean intraoperative pain VAS score was 2.26±0.69 for gel group and 5.13±1.13 for drops group (p*<0.001) Mean post-operative pain VAS score was 0.26±0.69 in gel group and 1.13±1.13 in drops group (p*=0.002).Conclusions: Compared to drops, Lidocaine gel has reduced intraoperative and post-operative pain.
ABSTRACT
AIM: To investigate the enhancement of ethanol on percutaneous permeation and topical anaesthesia of tetracaine gel. METHODS: Tetracaine (4%, w/w) gels were prepared by using 20% and 70% ethanol as penetration enhancers. Franz diffusion chamber and UV spectrophotometry were adopted in the transdermal osmotic test of isolated mouse skin. Von Frey test was used to evaluate the topical anesthetic effect of tetracaine gels. RESULTS: 20% and 70% ethanol greatly improved the percutaneous permeation of tetracaine gel (P