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Evidence-based adoption of purse-string skin closure for stoma wounds.

ABSTRACT: Background:Opinion is divided on the optimal technique of skin closure after stoma reversal as most conventional techniques compromise either on speed/neatness of wound apposition or on the incidence of surgical site infection (SSI). Evidence suggests that purse-string skin closure (PSSC) may achieve both objectives. This study aims to compare conventional primary closure (PC) with PSSC to determine the efficacious technique for stoma wound closure. Methods:Patients undergoing stoma reversal between April 2015 and September 2017 were prospectively studied. Patients were divided into two groups based on the technique of skin closure (PC or PSSC). The following parameters were assessed: SSI, hospital stay, additional outpatient visit, wound healing time and patient satisfaction based on a standardised questionnaire. Results:Forty one patients underwent stoma reversal (20 PSSC vs 21 PC). Wound infection, need for wound care, length of hospital stay, healing time and scar size were significantly less, whereas average patient wound satisfaction scores were significantly more in the PSSC group. Conclusion:Purse-string skin closure (PSSC) proves efficacious and hence merits adoption as the technique of choice for closure of stoma wounds.

SUBMITTER: Behuria N

PROVIDER: S-EPMC7244863 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature

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Evidence-based adoption of purse-string skin closure for stoma wounds.

Behuria Nilotpal N Banerjee Jayant Kumar JK Ghosh Sita Ram SR Kulkarni Shrirang Vasant SV Saranga Bharathi Ramanathan R

Medical journal, Armed Forces India 20190603 2

<h4>Background</h4>Opinion is divided on the optimal technique of skin closure after stoma reversal as most conventional techniques compromise either on speed/neatness of wound apposition or on the incidence of surgical site infection (SSI). Evidence suggests that purse-string skin closure (PSSC) may achieve both objectives. This study aims to compare conventional primary closure (PC) with PSSC to determine the efficacious technique for stoma wound closure.<h4>Methods</h4>Patients undergoing sto ...[more]

PMID: 32476717

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Project description:BackgroundAll animals have mechanisms for healing damage to the epithelial sheets that cover the body and line internal cavities. Epithelial wounds heal either by cells crawling over the wound gap, by contraction of a super-cellular actin cable ("purse string") that surrounds the wound, or some combination of the two mechanisms. Both cell crawling and purse string closure of epithelial wounds are widely observed across vertebrates and invertebrates, suggesting early evolution of these mechanisms. Cnidarians evolved ~600 million years ago and are considered a sister group to the Bilateria. They have been much studied for their tremendous regenerative potential, but epithelial wound healing has not been characterized in detail. Conserved elements of wound healing in bilaterians and cnidarians would suggest an evolutionary origin in a common ancestor. Here we test this idea by characterizing epithelial wound healing in live medusae of Clytia hemisphaerica.ResultsWe identified cell crawling and purse string-mediated mechanisms of healing in Clytia epithelium that appear highly analogous of those seen in higher animals, suggesting that these mechanisms may have emerged in a common ancestor. Interestingly, we found that epithelial wound healing in Clytia is 75 to >600 times faster than in cultured cells or embryos of other animals previously studied, suggesting that Clytia may provide valuable clues about optimized healing efficiency. Finally, in Clytia, we show that damage to the basement membrane in a wound gap causes a rapid shift between the cell crawling and purse string mechanisms for wound closure. This is consistent with work in other systems showing that cells marginal to a wound choose between a super-cellular actin cable or lamellipodia formation to close wounds, and suggests a mechanism underlying this decision.Conclusions1. Cell crawling and purse string mechanisms of epithelial wound healing likely evolved before the divergence of Cnidaria from the bilaterian lineage ~ 600mya 2. In Clytia, the choice between cell crawling and purse string mechanisms of wound healing depends on interactions between the epithelial cells and the basement membrane.

Project description:Abstract Background Purse-string suture in transanal total mesorectal excision is a key procedural step. The aims of this study were to develop an automatic skill assessment system for purse-string suture in transanal total mesorectal excision using deep learning and to evaluate the reliability of the score output from the proposed system. Methods Purse-string suturing extracted from consecutive transanal total mesorectal excision videos was manually scored using a performance rubric scale and computed into a deep learning model as training data. Deep learning-based image regression analysis was performed, and the purse-string suture skill scores predicted by the trained deep learning model (artificial intelligence score) were output as continuous variables. The outcomes of interest were the correlation, assessed using Spearman’s rank correlation coefficient, between the artificial intelligence score and the manual score, purse-string suture time, and surgeon’s experience. Results Forty-five videos obtained from five surgeons were evaluated. The mean(s.d.) total manual score was 9.2(2.7) points, the mean(s.d.) total artificial intelligence score was 10.2(3.9) points, and the mean(s.d.) absolute error between the artificial intelligence and manual scores was 0.42(0.39). Further, the artificial intelligence score significantly correlated with the purse-string suture time (correlation coefficient = −0.728) and surgeon’s experience (P< 0.001). Conclusion An automatic purse-string suture skill assessment system using deep learning-based video analysis was shown to be feasible, and the results indicated that the artificial intelligence score was reliable. This application could be expanded to other endoscopic surgeries and procedures. The aims of this study were to develop an automatic skill assessment system for purse-string suture in transanal total mesorectal excision (TaTME) using artificial intelligence (AI) and to evaluate the reliability of the score output. The score output by AI exhibited statistically significant correlation with the manual score, purse-string suture time, and surgeon’s experience. To the best of our knowledge, this is the first report on automatic skill assessment for purse-string suture in TaTME.

Dataset Information

Evidence-based adoption of purse-string skin closure for stoma wounds.

Publications

Evidence-based adoption of purse-string skin closure for stoma wounds.

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