Techniques in coloproctology
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Real-time stereotactic navigation for transanal total mesorectal excision has been demonstrated to be feasible in small pilot series using laparoscopic techniques. The possibility of real-time stereotactic navigation coupled with robotics has not been previously explored in a clinical setting. ⋯ The combination of stereotactic navigation and robotic surgery is feasible, although some limitations and technical challenges were observed. For complex surgery, the addition of navigation to robotics can improve surgical precision. This will likely represent the next step in the evolution of robotics and in the development of digital surgery.
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Return of normal gastrointestinal (GI) function is a critical determinant of recovery after colorectal surgery. The aim of this meta-analysis was to evaluate whether perioperative intravenous (IV) lidocaine benefits return of gastrointestinal function after colorectal resection. ⋯ Perioperative IV lidocaine may improve recovery of gastrointestinal function after colorectal surgery. Large-scale effectiveness studies to measure effect size and evaluate optimum dose/duration are warranted.
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Extended thromboprophylaxis after abdominal and pelvic cancer surgery to prevent venous thromboembolic events (VTE) is recommended but adherence is sub-optimal. Identifying patients at highest risk for post-discharge events may allow for selective extended thromboprophylaxis. The aim of our study was to identify the different risk factors of venous thromboembolism for in-hospital and post-discharge events. ⋯ Patients at high-risk for post-discharge events have different characteristics than those who develop VTE in-hospital. Identifying this specific subset of patients at highest risk for post-discharge VTE may allow for the selective use of prolonged thromboprophylaxis.
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The surgical management of perforated sigmoid diverticulitis and generalised peritonitis is challenging. Surgical resection is the established standard of care. However, there is debate as to whether a primary anastomosis (PA) or a Hartmann's procedure (HP) should be performed. The aim of the present study was to perform a review of the literature comparing HP to PA for the treatment of perforated sigmoid diverticulitis with generalised peritonitis. ⋯ PA and HP appear to be equivalent in terms of most outcomes of interest, except for a lower intra-abdominal abscess risk after PA. The latter finding needs further investigation as it was not reported in any of the individual trials. However, given the limitations of the included RCTs, no firm conclusion can be drawn on which is the best surgical option in patients with generalised peritonitis due to diverticular perforation.
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Complete pathological resection of locally advanced and recurrent anorectal cancer is considered the most important determinant of survival outcome. Involvement of the retropubic space with cancer threatening or involving the penile base poses specific challenges due to the potential for margin involvement and blood loss from the dorsal venous plexus. In the present study we evaluate a new transperineal surgical approach to excision of anterior compartment organs involved or threatened by cancer which facilitates exposure and visualisation of the bulbar urethra and the deep vein of the penis caudal to the retropubic space and penile base. ⋯ The transperineal approach to the penile base and retropubic space allows for high rates of R0 resection margin status with direct visualisation of the dorsal venous plexus, thereby minimising blood loss. In our experience, this technique is the preferred approach to excision of cancers threatening and involving the penile base and also for most male patients requiring total pelvic exenteration.