Results of laparoscopic colorectal surgery from a national training center.

BACKGROUND/PURPOSE: Trials have shown laparoscopic colorectal surgery to be safe. We aim to analyze the long-term results from a single national training center for laparoscopic surgery, especially in patients with high predicted mortality scores as well as in octogenarians. We also aim to explore the trend in the length of the learning curve among consultants and colorectal trainees, and determine whether or not laparoscopic colorectal surgery is amenable to surgical training. METHODS: All patients between July 2003 and July 2011 having laparoscopic colorectal surgery were included in a prospectively maintained database and analyzed retrospectively. We collected operative data (operation time, conversion), postoperative 30-day morbidity/mortality, cancer survival (including local/distant recurrences), postoperative incisional/port site hernia rates, and rates of reoperation. RESULTS: A total of 508 patients (258 males and 250 females) were enrolled in the study. The mean age of patients was 65.5 years and median body mass index (BMI) 27 kg/m(2); 70% of cases were malignant. Conversion rate was 15%, mean operation time was 175 minutes, and mean blood loss was 220 mL. The mean postoperative length of stay was 5.8 days, 30-day morbidity 23% (leak rate 1.38%), and 30-day mortality 1.57%. Operating time and conversion rates were significantly lower in right-sided resections compared to left-sided and rectal resections, and lymph node retrieval was significantly higher. Readmission and reoperation rates were 4.9% and 2.8%, respectively. The overall mean follow-up period was 1.8 years, rate of incisional/port site/parastomal hernia was 5.7% (n = 30), and readmission secondary to adhesions was <1% (n = 4). Readmission rates and 30-day surgical morbidity were significantly higher in patients with non-neoplastic disease compared to those with benign or malignant lesions. The mean follow-up period for cancer patients was 2.3 years. Local and distant recurrence rates were 4.2% and 13.2%, respectively. Overall death from cancer was 10.4%. Among the study participants, 74 were octogenarians and 23 had a predicted mortality of >5% (P-Possum tool). No statistically significant increases were observed in conversion, morbidity, or mortality rates in these groups (p > 0.05), but length of stay was statistically longer-7 days for octogenarians and 8 days for patients with >5% predicted mortality (p < 0.05). In 2003, two consultants operated on all cases; currently, twice as many procedures are performed by supervised trainees instead of consultants, with no change in outcome. Operating time was significantly higher in the consultant-led cases, but no other differences were noted in short- or long-term outcomes between consultant- and junior/senior trainee-led cases. CONCLUSION: We conclude that laparoscopic colorectal surgery should be the standard treatment option offered to all patients regardless of age and comorbidities and it is amenable to training.

Posterior tibial nerve stimulation for fecal incontinence: where are we?

Neurostimulation remains the mainstay of treatment for patients with faecal incontinence who fails to respond to available conservative measures. Sacral nerve stimulation (SNS) is the main form of neurostimulation that is in use today. Posterior tibial nerve stimulation (PTNS)--both the percutaneous and the transcutaneous routes--remains a relatively new entry in neurostimulation. Though in its infancy, PTNS holds promise to be an effective, patient friendly, safe and cheap treatment. However, presently PTNS only appears to have a minor role with SNS having the limelight in treating patients with faecal incontinence. This seems to have arisen as the strong, uniform and evidence based data on SNS remains to have been unchallenged yet by the weak, disjointed and unsupported evidence for both percutaneous and transcutaneous PTNS. The use of PTNS is slowly gaining acceptance. However, several questions remain unanswered in the delivery of PTNS. These have raised dilemmas which as long as they remain unsolved can considerably weaken the argument that PTNS could offer a viable alternative to SNS. This paper reviews available information on PTNS and focuses on these dilemmas in the light of existing evidence.

Obstructive perianal lesion in a 75-year-old man.

A 75-year-old man presented with a fungating peri-anal mass which appeared malignant at presentation and required a defunctioning colostomy due to abdominal distension. Multiple biopsies were negative for malignancy and CT/MRI scans showed no malignant mass. A provisional diagnosis of prolapsed haemorrhoids was made and the mass was treated with sugar and charcoal dressings. There was a dramatic resolution of the mass with this treatment and the patient was discharged 1 month post-admission. The patient then underwent an elective haemorrhoidectomy by which time the mass had decreased to a perianal skin tag. The only clues in this case were the acute presentation of the mass, the fact that the mass had appeared post-defecation and that the patient had been diagnosed with haemorrhoids 2 years previously on colonoscopy. This case highlights the importance of evaluating all investigations and considering all differential diagnoses before embarking on definitive management.

Crohn's disease or TB--the perennial question and diagnostic pitfalls.

A previously healthy 28-year old lady from Saudi Arabia presented with recurrent peri-anal abscesses progressing to fistula-in-ano. These were treated with incision and drainages and with setonisation of the fistula. Multiple biopsy and culture specimens were taken to rule out tuberculosis (TB) or Crohn's disease - all showed granulomatous disease suggestive of either Crohn's or TB, no mycobacteria were grown. MRI scanning also suggested either TB or Crohn's disease. Tuberculin skin test was inconclusive and Quantiferon Gold test was negative. Treatment for Crohn's was started with oral prednisolone - the patient deteriorated and adalimumab (tumour necrosis factor α antagonist) was commenced. With continued deterioration in the absence of intra-abdominal abscesses, a clinical diagnosis of TB was made, Crohn's treatment suspended and quadruple therapy for TB was initiated. The patient rapidly improved and a delayed re-look histological specimen identified an isolated mycobacterium. Subsequent cultures confirmed drug-sensitive TB. The lady is currently well on TB eradication regimen.