Excellent outcomes after emergency groin hernia repair.

PURPOSE: Emergency repair of incarcerated inguinal and femoral hernias has traditionally been regarded as carrying an increased risk of morbidity and mortality in a patient population that tends to be elderly with significant co-morbidities. Excessive waiting times for elective repair and delays in diagnosis and treatment increase the risk of strangulation, bowel resection and overall mortality. This study examined the management of emergency surgery for groin hernias for a 3 year period in a large teaching hospital. METHOD: The notes of all patients undergoing emergency groin hernia repair in our hospital between 1 January 2005 and 31 December 2007 were examined. Patient demographics and details of perioperative course and outcome were analysed. RESULTS: Seventy-nine (50 males) patients had emergency groin hernia repair in the 3 year study period. Inguinal hernias predominated (61 vs 18); 12/79 (15%) had previously been assessed as outpatients prior to emergency presentation-all had inguinal hernias and nine (11.4 %) were on the waiting list for elective repair at the time of emergency surgery (mean wait 59 days). Complications were observed in 24% of patients. Two patients (2.5%) required small bowel resection, both performed without recourse to formal laparotomy, and two patients died within 30 days of surgery (2.5%). CONCLUSIONS: It is possible to achieve excellent complication, bowel resection and 30-day mortality rates in emergency groin hernia repair even in patients who have previously declined surgery due to perceived anaesthetic risks. As NHS waiting times for surgery decrease, the number of hernias repaired emergently whilst awaiting elective surgery will also fall.

Skin appendage involvement in anal intraepithelial neoplasia.

BACKGROUND: High-grade anal intraepithelial neoplasia (AIN III) may be premalignant. Surgical excision of large areas of anal epithelium carries significant morbidity. Ablation treatments may carry less morbidity; however, the depth of ablation is uncertain and failure to ablate dysplasia in hair shafts and other skin appendages may lead to early recurrence. METHODS: This study assesses morphometric aspects of skin appendages in perianal skin and anal canal mucosa in tissues from 30 patients with AIN III. Both normal and dysplastic epithelium was assessed in each patient. The depth to which AIN III involved skin appendages was measured using computerized image analysis. RESULTS: Both the perianal epidermis and anal canal mucosa affected by AIN III were significantly thicker than normal. Nineteen of 30 patients with AIN III had skin appendage involvement. Some 57 per cent of hair follicles (79 of 138), 16 per cent of sebaceous glands (11 of 69) and 25 per cent of sweat glands (24 of 96) observed beneath an abnormal epithelium had evidence of AIN. The median depth of AIN involvement of the hair follicle was 1.14 (range 0.44-1.67) mm, sebaceous glands 1.44 (range 0.96-1.90) mm, and sweat glands 0.94 (range 0.50-2.20) mm. These figures do not take into account tissue shrinkage due to histological processing. CONCLUSION: AIN III involvement of epithelial appendages is a significant problem. For disease eradication, tissue destruction or removal to a depth of at least 2.2 mm below the adjacent basement membrane is required. Surgical excision of high-grade AIN remains the treatment of choice.

Mechanism of femoral nerve palsy complicating percutaneous ilioinguinal field block.

Femoral nerve palsy has been reported after percutaneous ilioinguinal field infiltration with general anaesthesia for inguinal herniorrhaphy. The mechanism whereby this could occur was studied in cadaver dissections. It was found that the plane between the transversus abdominis muscle and the transversalis fascia was continuous laterally with the tissue plane deep to the iliacus fascia, which is the plane containing the femoral nerve. Injection of methylene blue 1 ml into this plane resulted in pooling of dye around the femoral nerve. Femoral nerve palsy may result from infiltration of a sufficient volume of local anaesthetic into the plane between the transversus abdominis muscle and the transversalis fascia with tracking of the injectate deep to the iliacus fascia to affect the femoral nerve. This finding has important implications for the performance of a percutaneous ilioinguinal field block particularly in day surgery provision.

Roux-en-Y biliary diversion: a worthwhile procedure?

The Roux-en-Y biliary diversion has varied in popularity, with poor results recently reported. A retrospective case note review was undertaken of all patients who underwent Roux-en-Y diversion, in a single consultant practice to assess a single clinician's results. Thirty-seven consecutive patients who underwent biliary diversion were studied: 22 had gastric malignancy and 15 had benign biliary reflux. The benign group revealed improvement in 80% with 40% being entirely asymptomatic and 66% being medication free. In the malignant disease group 15 patients were Visick grade I or II post-operatively; two were classified as Visick IV but one was converted to grade I after further gastric resection. The 30-day mortality in this group was 14 and 50% at 5 years. Good or satisfactory results can be obtained from Roux-en-Y biliary diversion for patients with benign (80% satisfied) and malignant (84% satisfied) disorders but care with patient selection in the benign group is required.