Consenting for pelvic nerve injury in colorectal surgery: need to address age and gender bias

Systematic Review of Preoperative Risk Discussion in Practice

BACKGROUND

Informed consent is an ethical imperative of surgical practice. This requires effective communication of procedural risks to patients and is learned during residency. No systematic review has yet examined current risk disclosure. This systematic review aims to use existing published information to assess preoperative provision of risk information by surgeons.

METHODS

Using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses as a guide, a standardized search in Ovid MEDLINE, Embase, CINHAL, and PubMed was performed. Three reviewers performed the study screening, with 2-reviewer consensus required at each stage. Studies containing objective information concerning preoperative risk provision in adult surgical patients were selected for inclusion. Studies exclusively addressing interventions for pediatric patients or trauma were excluded, as were studies addressing risks of anesthesia.

RESULTS

The initial search returned 12,988 papers after deduplication, 33 of which met inclusion criteria. These studies primarily evaluated consent through surveys of providers, record reviews and consent recordings. The most ubiquitous finding of all study types was high levels of intra-surgeon variation in what risk information is provided to patients preoperatively. Studies recording consents found the lowest rates of risk disclosure. Studies using multiple forms of investigation corroborated this, finding disparity between verbally provided information vs chart documentation.

CONCLUSIONS

The wide variance in what information is provided to patients preoperatively inhibits the realization of the ethical and practical components of informed consent. The findings of this review indicate that significant opportunities exist for practice improvement. Future development of surgical communication tools and techniques should emphasize standardizing what risks are shared with patients.

Survey on consenting practice and discussion of post-operative erectile dysfunction following rectal cancer surgery

Introduction:

Sexual dysfunction is a recognized complication of rectal cancer surgery, due to the close proximity of the pelvic autonomic nerves to the normal plane of dissection. The consenting process should therefore always include the risk of sexual and urinary dysfunction arising after such surgery. This survey was undertaken to assess the consenting practice, and to evaluate the frequency of use of phosphodiesterase Type 5 (PDE5) inhibitors to treat erectile dysfunction (ED) following rectal cancer surgery.

Methods:

All listed Association of Coloproctology of Great Britain and Ireland (ACPGBI) members were invited to participate in the electronic survey, which comprised six questions. By 8 weeks, 119 responses had been received.

Results:

There were 112 respondents (94.1%) who routinely discussed the risk of ED during the process of gaining consent for rectal cancer surgery. There were 104 respondents (87.3%) who documented ED on their consent form. There were 24 respondents (20.2%) who indicated that there was no stated percentage risk for ED; and there were 69 (58.0%) and 26 (21.9%) respondents who quoted there was a 0–25% and 26–50% risk of ED during the consent process, respectively. None were quoting > 50% risk of ED. There were 68 respondents (57.1%) who routinely enquired about ED during follow-up. There were 30 respondents (25.2%) who stated that they had experience in prescribing PDE5 inhibitors for their patients who suffer from ED: We had 25 of them who felt that patients benefited from using PDE5 inhibitors.

Conclusions:

The majority of colorectal surgeons routinely discuss and document the risk of ED when consenting for rectal surgery; however, most surgeons have no experience in prescribing PDE5 inhibitors. This is an area that requires further study and education.

NOTES total mesorectal excision (TME) for patients with rectal neoplasia: a preliminary experience

BACKGROUND

Natural orifice transluminal endoscopic surgery (NOTES) and single-incision laparoscopy are emerging, minimally invasive techniques. Total mesorectal excision (TME), the gold standard treatment for patients with resectable distal rectal tumors, is usually performed in an "up-to-down" approach, either laparoscopically or via open techniques. A transanal, "down-to-up" TME has already been reported. Our NOTES variant of TME (NOTESTME) is based on a transperineal approach without any form of abdominal assistance. The aim was to reduce further the invasiveness of the procedure while optimizing the anatomical definition of the distal mesorectum. This approach may lead to reduced postoperative pain, decreased hernia formation and improved cosmesis when compared to standard laparoscopy.

METHODS

NOTESTME was attempted in 16 patients with distal rectal neoplasia (i.e., distal edge of the tumor lower than the pouch of Douglas, between 0 and 12 cm from the dentate line). Additional inclusion criteria consisted of an ASA status ≤III and the absence of previous abdominal surgery.

RESULTS

NOTESTME was completed in all patients. Additional abdominal, single-incision laparoscopic assistance was required in 6 (38 %) patients. Mean operative time was 265 min (range 155-440 min). The morbidity rate was 18.8 % (two small bowel obstructions and one pelvic abscess), requiring re-operation in each case. No leaks occurred, and the mortality rate at 30 and 90 days was 0 %. Resection margins were negative in all patients. A median of 17 nodes (range 12-81) was retrieved per specimen. Mean length of hospital stay was 10 days (range 4-29 days). Patients were followed for an average of 7 months (range 3-23 months).

CONCLUSION

NOTESTME was feasible and safe in this series of patients with mid- or low rectal tumors. The short-term mortality and morbidity rates are acceptable, with no apparent compromise in the oncological quality of the resection. Larger, randomized controlled trials with long-term follow-up are warranted.