A MULTIFACTORIAL APPROACH FOR IMPROVING THE SURGICAL PERFORMANCE OF NOVICE VITREORETINAL SURGEONS

Marina Roizenblatt, Kim Jiramongkolchai, Peter Louis Gehlbach, Vitor Dias Gomes Barrios Marin, Alex Treiger Grupenmacher, Felipe Muralha, Michel Eid Farah, Rubens Belfort Junior, Mauricio Maia

Research output: Contribution to journalArticlepeer-review

Abstract

PURPOSE: To quantitatively analyze and compare the novice vitreoretinal surgeons' performance after various types of external exposures. METHODS: This prospective, self-controlled, cross-sectional study included 15 vitreoretinal fellows with less than 2 years of experience. Surgical performance was assessed using the Eyesi simulator after each exposure: Day 1, placebo, 2.5, and 5 mg/kg caffeine; Day 2, placebo, 0.2, and 0.6 mg/kg propranolol; Day 3, baseline simulation, breathalyzer reading of 0.06% to 0.10% and 0.11% to 0.15% blood alcohol concentration; Day 4, baseline simulation, push-up sets with 50% and 85% repetition maximum; Day 5, 3-hour sleep deprivation. Eyesi-generated total scores were the main outcome measured (0-700, worst to best). RESULTS: Performances worsened after increasing alcohol exposure based on the total score (χ2 = 7; degrees of freedom = 2; P = 0.03). Blood alcohol concentration 0.06% to 0.10% and 0.11% to 0.15% was associated with diminished performance compared with improvements after propranolol 0.6 and 0.2 mg/kg, respectively (∆1 = -22 vs. ∆2 = +13; P = 0.02; ∆1 = -43 vs. ∆2 = +23; P = 0.01). Propranolol 0.6 mg/kg was positively associated with the total score, compared with deterioration after 2.5 mg/kg caffeine (∆1 = +7 vs. ∆2 = -13; P = 0.03). CONCLUSION: Surgical performance diminished dose dependently after alcohol. Caffeine 2.5 mg/kg was negatively associated with dexterity, and performance improved after 0.2 mg/kg propranolol. No changes occurred after short-term exercise or acute 3-hour sleep deprivation.

Original languageEnglish (US)
Pages (from-to)2163-2171
Number of pages9
JournalRetina (Philadelphia, Pa.)
Volume41
Issue number10
DOIs
StatePublished - Oct 1 2021

ASJC Scopus subject areas

  • Ophthalmology

Fingerprint

Dive into the research topics of 'A MULTIFACTORIAL APPROACH FOR IMPROVING THE SURGICAL PERFORMANCE OF NOVICE VITREORETINAL SURGEONS'. Together they form a unique fingerprint.

Cite this