Restoration of fecal continence with chronic electrostimulation of gracilis muscle 17 years after a Pickrell's operation.

A 27-year-old woman who had undergone a Pickrell's operation at the age of 10 years, was observed for severe incontinence to solid and liquid stools. Physical examination and physiological tests revealed poor resting anal tone but a very good response of the transposed gracilis to percutaneous electrostimulation, which showed that the gracilis ability to contract was maintained in spite of 17 years of only occasional and unplanned muscular activity. Examination also demonstrated that the muscle had followed body growth during the patient's development. Restoration of continence by continuous electrostimulation of the gracilis muscle was then planned. To allow muscular resistance to this stimulation a fast-to-slow twitch fiber conversion was first obtained by low-frequency electrostimulation. A subcutaneous abdominal implant of a pulse generator connected to the gracilis by intramuscular platinum-iridium electrodes was carried out. After a period of muscular training, fiber conversion was achieved, and continuous electrostimulation led to complete restoration of continence with stable results at the 36 month follow-up evaluation. This case demonstrates that even such a long period of muscular inactivity does not affect the possibility of recovering a failed Pickrell's operation using electrostimulation. This easy and safe procedure can be applied to all previously failed graciloplasties provided that muscle contractility is maintained.

Quality of life after total anorectal reconstruction: long-term results.

The aim of the study was to assess the long-term quality of life (minimum 8 years after surgery) of patients undergoing total anorectal reconstruction for low rectal cancer. The quality of life of 27 patients undergoing total anorectal reconstruction (mean age: 73.07 years) and 27 healthy subjects (mean age: 73.50 years) randomly chosen from the population was analysed and compared using general standardized questionnaires and specific fecal continence scales. Twenty-one out of 27 patients were clinically evaluated and personally interviewed by the same surgeon who had performed the reconstruction some years before. Quality of life analysis yielded good global results, also in the light of the mean age of the patients. Fecal continence was obtained in 81% of patients. All of them report a good physical, psychological and social situation. There was no statistically significant difference (P = ns) in quality of life between these 27 total anorectal reconstruction patients and the control population. In adequately selected patients, total anorectal reconstruction is proposed as a technique capable of guaranteeing good quality of life as well as being a safe technique for the treatment of low rectal cancer.

Anorectal reconstruction after abdominoperineal resection. Experience with double-wrap graciloplasty supported by low-frequency electrostimulation.

PURPOSE: The aims of the study contained herein were to analyze the efficacy and safety of a chronically electrostimulated double-wrap graciloplasty for restoration of continence after a curative abdominoperineal resection for rectal carcinoma and to evaluate late results of a stimulation protocol that was begun early. METHODS: During the last six years, 31 consecutive patients underwent this procedure: in 24 patients, electrostimulated double-wrap graciloplasty was performed simultaneously with abdominoperineal resection for lower rectal cancer, 7 strictly selected patients underwent conversion to an abdominal stoma following previous abdominoperineal resection (mean length of time from stoma creation, 71.4 months) Anorectal reconstruction was performed following a surgical scheme already standarized since 1985 in 102 patients: after abdominoperineal resection, the distal colon was pulled through to the perineum and surrounded by both gracilis muscles following an "alfa and new-sling" configuration; using platinumiridium electrodes, both muscles were then connected to pulse generator, which was implanted subcutaneously in the abdomen. All surgical steps were performed during the same surgical session to allow early postoperative stimulation of the transposed muscles. A contemporary covering stoma was abandoned as a standard procedure; the distal colon was left closed for a few postoperative days, then it was resected and sutured to the perineum under local anesthesia. Eighteen patients underwent preoperative or postoperative radiotherapy or both, without any significant adverse outcome. To increase gracilis resistance to prolonged "tonic" contraction, patients underwent a chronic, low-frequency stimulation protocol. In the last 11 patients, a new "over-the-nerve and intramuscular" implant was adopted to optimize fiber recruitment and to reduce electrostimulation thresholds. At regular intervals, all patients were evaluated using continence scores and questionnaires, electromanometry, endoluminal ultrasound study, and defecography. RESULTS: Twenty-six of 31 patients were evaluated for continence, with a mean length of follow-up of 37.8 (range, 4-68) months; 3 patients died because of cancer recurrence, 1 underwent conversion to an abdominal stoma, and 1 is waiting for stoma closure. Continence to liquid and solid stools was achieved in 22 patients (85 percent), and electromanometry findings confirmed a good muscular contraction postoperatively and during follow-up intervals. No postoperative mortality (40 days) was observed; the postoperative complication rate was high 22-percent), but early treatment (drainage and temporary diversion in 7 patients) led to favorable outcomes (4 resolutions, 3 partial muscular impairments). Four stimulators had to be temporarily explanted because of late complications, and two stimulators had to be replaced because of battery exhaustion after three years of use with high stimulation parameters. A significant difference was observed comparing full-contracting threshold after intramuscular (14 patients) and the new over-the-nerve and intramuscular implant technique. CONCLUSIONS: The study contained herein confirms the efficacy of the surgical scheme we have adopted since 1985 to reconstruct sphincteric apparatus after abdominoperineal resection of the rectum. The "one-step" timing of surgical and electrostimulation-related procedures and the early start of stimulation did not show a significant increase in the complication rate and did not produce noticeable muscular or nerve damage. Adoption of chronic electrostimulation protocols using implantable devices increased the rate of fully continent patients; nevertheless, the overall cost for devices and medical staff duties was high, and a small increase of late morbidity was observed. Finally, the preliminary experience with our new technique of electrode implants encourages further application.

Laparoscopically assisted abdominoperineal resection and simultaneous total anorectal reconstruction with electrostimulated static-dynamic graciloplasty.

Bilateral electrostimulated graciloplasty, performed in a "static-dynamic" configuration around a perineal colostomy (total anorectal reconstruction-TAR), has been proven a reliable way to restore continence in patients who undergo to abdomino perineal resection (A.Pe.R.) of the anorectum for lower rectal cancer. In selected cases, laparoscopically assisted TAR can significantly improve body-image preservation and aesthetic results. A 33-year-old woman affected by lower rectal cancer was submitted to laparoscopic-assisted A.Pe.R and TAR with simultaneous bilateral graciloplasty; a suprapubic median mini-access was adopted to fully mobilize the mesorectum in absence of pneumoperitoneum. A subcutaneous pulse generator and special electrodes were also implanted to chronically electrostimulate the graciloplasty. In spite of postoperative bleeding which required a blood transfusion, postoperative outcome was satisfactory; electrostimulation was started on the 10th postoperative (p.o.) day and the patient was discharged on the 17th p.o. day. Two months after TAR, level II continence (N.S. Williams Scale) was achieved. In selected cases, laparoscopically assisted A.Pe.R. and TAR can be safely adopted to preserve body image and quality of life, avoiding at the same time a large abdominal approach and a "permanent" abdominal colostomy.