14 research outputs found

    The Effects of Graphics and Cognitive Style on Managerial Decision Making

    Full text link
    This article describes an experiment that examined the effects of two versus three-dimensional graphs for two modes of information presentation, paper or computer, for a managerial decision-making problem. The effects of these variables on the problem solving strategies and cognitive styles of experienced and non-experienced decision makers were also examined. The experimental results indicated that solution times were faster for computer than for paper presentations of information, no significant effects for dimensionality were found, and there was no significant correlation between solution time and cognitive styles (visual acuity, Myers-Briggs test) across modes of information presentation. </jats:p

    An international multicenter propensity-score matched and coarsened-exact matched analysis comparing between robotic versus laparoscopic partial liver resections of the anterolateral segments.

    No full text
    BACKGROUND Robotic liver resections RLR may have the ability to address some of the drawbacks of laparoscopic(L)LR but few studies have done a head-to-head comparison of the outcomes after anterolateral segment resections by the two techniques. METHODS A retrospective study was conducted of 3202 patients who underwent minimally-invasive LR of the anterolateral liver segments at 26 international centres from 2005 to 2020. 2606 cases met study criteria of which there were 358 RLR and 1868 LLR. Peri-operative outcomes were compared between the two groups using a 1:3 Propensity Score Matched(PSM) and 1:1 Coarsened Exact Matched(CEM) analysis. RESULTS Patients matched after 1:3 PSM(261 RLR vs. 783 LLR) and 1:1 CEM(296 RLR vs. 296 LLR) revealed no significant differences in length of stay, readmission rates, morbidity, mortality and involvement of or close oncological margins. RLR surgeries were associated with significantly less blood loss(50ml vs. 100ml, p<0.001) and lower rates of open conversion on both PSM(1.5% vs. 6.8%, p=0.003) and CEM(1.4% vs. 6.4%, p=0.004) compared to LLR. Though PSM analysis showed RLR to have a longer operating time than LLR(170 min vs. 160 min, p=0.036), this difference proved to be insignificant on CEM(167 min vs. 163 min. p=0.575). CONCLUSION This multicentre international combined PSM and CEM study showed that both RLR and LLR have equivalent perioperative outcomes when performed in selected patients at high volume centres. The robotic approach was associated with significantly lower blood loss and allowed more surgeries to be completed in a minimally-invasive fashion
    corecore