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Laparoscopic pelvic autonomic nerve-preserving surgery for sigmoid colon cancer.

ABSTRACT:

Background

To test the feasibility of laparoscopic approach in performing the simultaneous pelvic autonomic nerve preservation during standard anterior resection of sigmoid colon cancer.

Methods

Patients meeting appropriate eligibility criteria were recruited for the present study. The surgical procedures are shown in the video. The genitourinary function was evaluated on the basis of validated questionnaires including International Prostate Symptom Score (IPSS), International Index of Erectile Function (IIEF), and Female Sexual Function Index (FSFI).

Results

A total of 112 patients (tumor, node, metastasis system stage I, n = 8; stage II, n = 54; stage III, n = 50; male, n = 58; female, n = 54; age [mean +/- standard deviation], 55.8 +/- 6.4 years) with good baseline genitourinary function were operated on with the intent of total preservation of pelvic autonomic nerves and curative resection of sigmoid colon cancer. The patients were prospectively followed (median time of follow-up, 18 months; range, 6-30 months). In patients with a successful nerve-preserving surgery (96.4%, n = 108), 104 patients completed the evaluation of urinary function. The median duration for indwelling urine Foley catheter was 3.0 days (range, 1.0-7.0 days). The voiding function after removal of the urine Foley catheter was good (IPSS, 0-7) in 98 (94.2%) patients, fair (IPSS, 8-14) in 5 (4.8%), and poor (IPSS, 15-35) in 1 (1.0%). Before and after nerve-preserving surgery, there were no significant changes of IPSS scores (3.20 +/- 1.72 vs. 3.68 +/- 2.82, P = .075, paired t-test) in the present patient series. Forty-four male patients completed the postoperative evaluation of sexual function, and ejaculation was ranked as good in 40 (90.9%), fair (decrease in ejaculatory amounts) in 3 (6.8%), and poor (retrograde ejaculation, failure of ejaculation) in 1 (2.3%), whereas the potency was good (IIEF, 60-75) in 41 (93.2%), fair (IIEF, 44-59) in 2 (4.5%), and poor (IIEF, 5-43) in 1 (2.3%). Moreover, before and after a successful nerve-preserving operation, there were no significant changes of IIEF scores (72.4 +/- 4.6 vs. 70.3 +/- 8.4, P = .082, paired t-test). For female patients (n = 42), the postoperative sexual function was ranked as good (FSFI score, 76-95) in 36 (85.7%), fair (FSFI, 58-75) in 4 (9.5%), and poor (FSFI, 4-57) in 2 (4.8%). Furthermore, there were no significant changes of FSFI scores (89.0 +/- 9.2 vs. 85.4 +/- 16.4, P = .122, paired t-test) before and after successful nerve-preserving surgery.

Conclusions

Under laparoscopy, we can clearly identify and preserve the pelvic autonomic nerves to retain genitourinary function in most patients undergoing oncologic resection of sigmoid colon cancer.

SUBMITTER: Liang JT

PROVIDER: S-EPMC2373867 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Project description:BackgroundGastric cancer and colon cancer are rarely seen in clinic, but there are still related reports. For gastric cancer and simultaneous colon cancer, surgical resection is the main treatment. Traditional surgery requires an incision from xiphoid process to pubic symphysis. With the progress of minimally invasive technology, laparoscopic surgery is also used in the treatment of gastric cancer, but also in the abdominal incision to remove specimens and in vitro anastomosis of digestive tract. Taking specimens through the natural cavity as a new surgical method can not only reduce the abdominal incision, but also reduce the occurrence of wound-related complications. Here, we report a patient with gastric cancer and colon cancer who was treated in our hospital.Case summaryWe report a series of patients with gastric cancer and colon cancer. upper abdominal pain was treated in our hospital for 6 months. electronic gastroscopy showed large irregular ulcers on the lesser curvature of the gastric antrum and biopsy showed poorly differentiated adenocarcinoma of the gastric antrum. The enhanced CT of abdomen and pelvis showed irregular thickening of gastric antrum wall, irregular thickening of sigmoid colon wall and no obvious enlarged lymph nodes around. Further electronic enteroscopy showed that the sigmoid colon showed cauliflower protuberance, the intestinal cavity was slightly narrow, the intestinal wall was stiff, and the biopsy pathology showed moderately differentiated adenocarcinoma of the sigmoid colon. No obvious abnormality was found in serological tumor indexes. We diagnosed gastric cancer with sigmoid colon cancer and the patient received Laparoscopic subtotal gastrectomy and sigmoidectomy combined with natural orifice specimen extraction surgery. At present, 12 months after operation, no clear tumor recurrence was found in the metastasis.ConclusionWe should improve the understanding of gastric cancer and sigmoid cancer and combine examination with pathology to avoid misdiagnosis as metastatic cancer. Laparoscopic subtotal gastrectomy should be performed for tumors with no serosa invasion, body mass index <30 and tumor diameter <6.5 cm. Sigmoidectomy combined with natural nostril sampling is feasible.