Minimally invasive surgery includes traditional laparoscopic and robot-assisted surgery. Although many studies related to robotic surgery and laparoscopic surgery have been published, when doing our search, scientometric studies that focus on related robotic surgery versus laparoscopic surgery were limited. In this study, we aimed to analyze and review the research hots and research status of robotic surgery versus laparoscopic surgery. We searched publications that involved robotic surgery versus laparoscopic surgery in the Web of Science database from 1980 to May 23, 2020. The top 100 publications were published in 2012 with the number of 17 and citations ranged from 618 to 64. Published across 34 different journals, namely European urology (n = 17) and others, the greatest contribution among 36 institutes was made by the Cleveland Clinic (n = 11). Of the top 100 publications, a total of 429 unique words were identified and the most frequently occurring keyword was laparoscopy (n = 33). The co-occurrence of keywords in the top 100 publications indicated that the study of diseases mainly focused on prostatectomy, complications, prostate cancer, retropubic prostatectomy, nephron-sparing surgery, lymph-node dissection, total mesenteric excision, sexual function, rectal cancer, and assisted distal gastrectomy. In recent years, comparative research on robot and laparoscopic surgery has decreased and most studies focus on cancer. (C) 2020 Asian Surgical Association and Taiwan Robotic Surgery Association. Publishing services by Elsevier B.V.

RATIONALE: Several studies have reported that both short and long sleep durations are associated with the metabolic syndrome (MetS), but whether a dose-response relationship exists is unclear. OBJECTIVE: We performed a meta-analysis to study the magnitude of the association between the different durations of sleep and MetS. METHODS: We searched in the databases of PubMed, Web of Science and Ovid (All Journals@Ovid) from inception to October 4th, 2014 for cross-sectional studies where an association between MetS and sleep duration was analyzed. MEASUREMENTS AND MAIN RESULTS: 18 studies with 75,657 participants were included. Daily sleep duration of 7 to 8 hours was used as the reference group. The odds ratio (OR) of having MetS for short (<7 hours) sleep was 1.23 ([95% CI: 1.11 to 1.37], p < 0.001, I2 71%). The ORs for <5 hours, 5 to 6 hours, and 6 to 7 hours of sleep were: 1.51 ([95% CIs: 1.10 to 2.08], p = 0.01); 1.28 ([95% CIs: 1.11 to 1.48], p < 0.001); and 1.16 ([95% CI: 1.02 to 1.31], p = 0.02), respectively. The coefficient of sleep duration on log of ORs was -0.06 + 0.02 (p = 0.02). The OR for long sleep duration was 1.13 ([95% CI: 0.97 to 1.32], p = 0.10, I2 89%). CONCLUSIONS: A dose-response relationship exists between short sleep duration and MetS. Those who report a sleep duration of <5 hours have a 1.5 higher odds of having MetS. Our study does not support the notion that long sleep is associated with MetS