Current outcomes of emergency large bowel surgery.

INTRODUCTION: Emergency large bowel surgery (ELBS) is known to carry an increased risk of morbidity and mortality. Previous studies have reported morbidity and mortality rates up to 14.3%. However, there has not been a recent study to document the outcomes of ELBS following several major changes in surgical training and provision of emergency surgery. The aim of this study was therefore to explore the current outcomes of ELBS. METHODS: A retrospective review was performed of a prospectively maintained database of the clinical records of all patients who had ELBS between 2006 and 2013. Data pertaining to patient demographics, ASA (American Society of Anesthesiologists) grade, diagnosis, surgical procedure performed, grade of operating surgeon and assistant, length of hospital stay, postoperative complications and in-hospital mortality were analysed. RESULTS: A total of 202 patients underwent ELBS during the study period. The mean patient age was 62 years and the most common cause was colonic carcinoma (n=67, 33%). There were 32 patients (15.8%) who presented with obstruction and 64 (31.7%) had bowel perforation. The overall in-hospital mortality rate was 14.8% (n=30). A consultant surgeon was involved in 187 cases (92.6%) as either first operator, assistant or available in theatre. CONCLUSIONS: ELBS continues to carry a high risk despite several major changes in the provision of emergency surgery. Further developments are needed to improve postoperative outcomes in these patients.

An unusual cause of acute internal haemorrhage: cystic artery pseudoaneurysm secondary to acute cholecystitis.

Spontaneous cystic artery haemorrhage is a rare complication of acute cholecystitis. Here we describe a case report of this unusual cause of internal haemorrhage, and discuss the pathogenesis and management strategies.

Prospective randomised multi-centre trial comparing the clinical efficacy, safety and patient acceptability of circular stapled anopexy with closed diathermy haemorrhoidectomy.

OBJECTIVE: Unlike excisional haemorrhoidectomy, stapled anopexy (SA), which does not involve radical excision, has theoretical advantages, thus offering potential patient benefits. We compared the clinical efficacy, safety and patient acceptability of SA, with closed haemorrhoidectomy (CH). PATIENTS AND METHODS: 182 patients with symptomatic haemorrhoids (grades II, III, IV) were randomly assigned to receive SA or CH and were followed for up to 1 year (6, 12, 24, 48 weeks) after operation. Postoperative pain, symptom control, complications, re-treatment rates, patient satisfaction, and quality of life were compared on an intention-to-treat basis. RESULTS: Postoperative pain in the SA group (n = 91) was significantly lower (p = 0.004, Mann-Whitney U test). At 1 year there were no significant differences in the symptom load, symptom severity or the disease severity between the two groups. Overall complication rates were similar but faecal urgency was reported more frequently following SA (p = 0.093, Fisher's exact test). Despite a similar rate of residual symptoms, prolapse control was better with CH (p = 0.087, Fisher's exact test), and more patients in the SA group required re-treatment for residual prolapse at 1 year (p = 0.037, Fisher's exact test). However, more patients rated SA as an excellent operation at 6 and 12 weeks (p = 0.008 and 0.033, binary logistic regression) and were willing to undergo a repeat procedure if required (p = 0.018, Fisher's exact test). CONCLUSION: Stapled anopexy offers a significantly less painful alternative to excisional haemorrhoidectomy and achieves a higher patient acceptability. Although the overall symptom control and safety are similar in the majority of the patients, the re-treatment rate for recurrent prolapse at 1 year is higher following SA when compared to CH.

Pathological audit of stapled haemorhoidopexy.

INTRODUCTION: Stapled haemorrhoidopexy is increasingly used for the surgical management of prolapsing haemorrhoids. Accurate placement of the staple line is essential to avoid involvement of the internal anal sphincter (IAS) and the pain sensitive squamous epithelium. The aim of this study was to correlate histology with symptomatic outcome after stapled haemorrhoidopexy. PATIENTS AND METHODS: A single pathologist reviewed one hundred and six consecutive rectal mucosal specimens. Each specimen was assessed for the presence of columnar, transitional and squamous epithelium as well as involvement of smooth and skeletal muscle. In November 2003 all patients were sent a previously validated postal questionnaire about haemorrhoidal symptoms and a Cleveland Clinic continence scale. Symptomatic outcome was compared between patients who did or did not have squamous epithelium involvement in their pathology specimens and were analysed by Mann-Whitney U-test. RESULTS: One hundred and six stapled haemorrhoidopexies were performed between June 2001 and September 2003. Eighty-four patients (79%) returned the questionnaire; 19 patients had squamous epithelium present in the pathology specimens. There was no significant difference between symptom or Cleveland Clinic scores in patients with or without squamous epithelium in their pathology specimens. Some specimens (n = 6) were found to have smooth muscle underlying squamous epithelium; this was interpreted as the presence of internal anal sphincter (IAS) within the specimen. There was no significant difference in Cleveland Clinic scores between this group and those without IAS involvement. CONCLUSION: This study has not demonstrated a long-term difference in symptomatic outcome or continence in patients who have squamous epithelium present in their stapled haemorrhoidopexy specimens.

Minimal access surgery for cholelithiasis induces an attenuated acute phase response.

BACKGROUND: Some benefits of laparoscopic (LC) and minilaparotomy (MC) cholecystectomy may reflect attenuation of the acute phase response. The authors examined components of this response. METHODS: Patients were randomized to LC (n = 11) or MC (n = 11). C-reactive protein (CRP), alpha-1-antitrypsin (AAT), retinol-binding protein (RBP), transferrin, and albumin were measured preoperatively and on postoperative days 1, 2, 4, and 7. Interleukin-1 receptor antagonist (IL-1ra), IL-6, and tumor necrosis factor (TNF-alpha) were measured more frequently perioperatively. Peak expiratory flow rate, forced expiratory volume in 1 second, and forced vital capacity were measured daily. RESULTS: The IL-6 increase was more persistent and marked in the MC patients from hour 8 to day 7 postoperatively (P < 0.05). Alterations in CRP, AAT, and albumin were similar. Postoperative deficits of respiratory function correlated with the magnitude of acute phase protein alteration. CONCLUSIONS: Minimal access surgery induces an acute phase response that is less prominent after a laparoscopic technique.

Minimal modulation of lymphocyte and natural killer cell subsets following minimal access surgery.

BACKGROUND: Trauma, whether accidental or surgically induced, is known to cause significant modulation of the cell-mediated immune response. Minimal access surgery (MAS) has been shown to improve postoperative recovery and enhance rehabilitation. The degree of immunosuppression resulting from two MAS techniques was studied and compared by measuring the circulating T lymphocyte and natural killer (NK) cell subsets. METHOD: This investigation was a randomized prospective study of patients admitted to the Professorial Surgical Unit, Aberdeen Royal Infirmary for elective cholecystectomy. Two methods of MAS were studied-laparoscopy and minilaparotomy. RESULTS: Laparoscopy was found to cause significantly less reduction in the number of cells expressing T lymphocyte phenotypic surface markers (CD2, CD3, CD8, CD4:CD8 ratio), activation markers (CD71 and HLA-DR), and NK cell subsets (CD11b, CD16, CD56 and CD57), when compared with the minilaparotomy technique. CONCLUSIONS: These data show that host defences are less suppressed after laparoscopic cholecystectomy, and this may have important implications for the use of laparoscopic techniques in major surgical resections, especially for malignant disease.

Streptococcal myositis and the acute abdomen: a case report.

Spontaneous streptococcal myositis, previously rare, is now reported more frequently. The condition is caused by overwhelming group A beta-haemolytic streptococcal infection and is not necessarily fatal.

A regional audit of the investigation and treatment of colorectal and pelvic floor disorders (1984-1991).

The activities of a regional physiology unit established for the investigation of colorectal and pelvic floor physiology in health and disease in a clinically relevant setting has been audited and its evolution described over a period of eight years. Trends in surgical treatment of some of these disorders over the same period have also been documented in the Lothian Region. Although there has been little change in the number of patients investigated annually patterns of investigation appear to change. Sphincter manometry, proctometrography and somatosensory reflex measurements have remained the most frequently performed and useful investigations. Spinal stimulation studies increased transiently because of a collaborative investigation of bowel and bladder function in patients with spinal injuries. A considerable increase in surface EMG tests and dynamic proctography has occurred. These trends are thought to be related to interest in defining evacuation dysfunction of the rectum and related problems of the pelvic floor. Isotope proctography now rivals barium videoproctography; at the same time the use of manometric colonic motility studies has diminished. Anal ultrasonography has replaced sphincter mapping in the last year and is being applied to other aspects of anorectal pathology. The last 4 years have seen the introduction and increasing use of non-surgical therapeutic modalities for the treatment of faecal incontinence and constipation: reflex electronic sphincter stimulation, biofeedback and the use of a prokinetic agent to promote colonic motility. Concomitant changes in the surgery of constipation and reconstructive anorectal procedures have been observed. It is recommended that coloproctology units should have easy access to at least one such investigation laboratory within their catchment area together with appropriate auditing facilities.

Solitary rectal ulcer: the place of biofeedback and surgery in the treatment of the syndrome.

Thirty-one patients with the solitary rectal ulcer syndrome were studied, the majority of whom presented with fresh blood per rectum and a rectal ulcer, mucorrhoea, or a varying degree of rectal prolapse. Fourteen patients were treated conservatively or with surgery and had a high rate of recurrence of the solitary rectal ulcer syndrome. Seventeen patients were treated with biofeedback for the associated obstructed defecation (anismus) either before or immediately after surgery with a lower recurrence rate. The final symptomatic cure rate was similar in both groups but 15 episodes of recurrence requiring further surgery were encountered in the non-biofeedback group compared to 4 recurrences in the biofeedback group.

Outlet obstruction constipation (anismus) managed by biofeedback.

Fifteen subjects presenting with intractable constipation due to obstructive defecation, mean (SEM) duration 8.8 (1.8) years, had the inappropriate contraction and electromyographic changes in the pelvic floor muscles and external and sphincter typical of this condition. An electromyographically derived index was used to grade its severity. A self applied biofeedback device was used to allow electromyographic recording of the abnormal external anal sphincter. The subjects were encouraged to reduce the abnormal electromyographic activity on straining after instruction and training. The procedure was intended as a relearning process in which the non-relaxing activity of the pelvic floor was gradually suppressed. Biofeedback training was maintained on a domiciliary basis for a mean time of 3.1 weeks and resulted in a significant reduction in the anismus index (mean (SEM) 69.9 (7.8)% before biofeedback, mean 14 (3.9)% after biofeedback, p less than 0.01). There was an associated reduction in the time spent straining at stool and in the difficulty of defecation and an increased frequency of defecation. Defecatory video proctograms in six subjects showed improvements in the anorectal angle during straining and evacuation. The clinical benefit to the patients persisted after a mean follow up of 6.2 months.

Constipation associated with chronic spinal cord injury: the effect of pelvic parasympathetic stimulation by the Brindley stimulator.

Ten subjects with severe constipation due to complete spinal cord injury (SCI) had prolonged oro-anal transit time (p less than 0.01), diminished faecal water content (p less than 0.05) and a reduced frequency of defaecation (p less than 0.01) compared to 10 non-SCI subjects. Paraplegics with an implanted Brindley S234 anterior sacral nerve root stimulator had a significant increase in frequency of defaecation (p less than 0.01), compared to the SCI group while the faecal water content was less although not significantly so. The Brindley stimulator group also showed a more rapid colonic transit than the SCI group but this did not reach statistical significance. SCI is associated with constipation which therefore appears to be favourably influenced by the Brindley S234 anterior nerve root stimulator. The effects produced are compatible with stimulation of left colonic motility, which facilitates the emptying of the distal colon, but also suggest that part of the response restricts transit in some areas of the colon or rectum. Since the motility changes induced by the Brindley stimulator do not affect the right colon a relatively greater residence time of the faecal bolus in this part of the large bowel would enhance water absorption.

The importance of the orientation of the electrode plates in recording the external anal sphincter EMG by non-invasive anal plug electrodes.

Two non-invasive anal plug electrodes of similar size have been compared, one with the electrode plates orientated circularly in the anal canal and the other with the plates in the long axis of the anal canal. There was a significant increase in the amplitude in the EMG signals recorded at rest and during squeeze from the external anal sphincter with a longitudinally placed electrode in 117 patients. Inappropriate contraction of the external anal sphincter when straining at stool was more readily detected using the longitudinal electrode in 52 patients investigated for intractable constipation. The longitudinal electrode detected the amplitude of the response to the elicitation of a pudeno-anal reflex more readily than the circular electrode. When in 12 of the 117 the pudeno-anal reflex EMG signal was either absent or not detected with the circumferential plug electrode, the longitudinal electrode detected the presence of a low amplitude response in 11 of these. When the non-invasive longitudinal electrode was compared to invasive fine wire stainless steel electrodes, a correlation was found for external anal sphincter resting EMG (r = 0.99, p less than 0.01), voluntary squeeze EMG (r = 0.99, p less than 0.001) and strain EMG (r = 0.91, p less than 0.01). The longitudinal anal plug electrode thus facilitates surface acquisition of EMG activity.

Disordered colorectal motility in intractable constipation following hysterectomy.

Colorectal and anal sphincter motility and electrophysiology were investigated in 14 women with profound constipation following hysterectomy and compared with an asymptomatic group of control subjects. Twelve patients complained of significant urinary symptoms. No differences in the motor function of the anal sphincters were detectable. The latency of the pudendoanal reflex was unchanged after hysterectomy. Proctometrograms demonstrated significantly increased rectal volumes and compliance in the hysterectomy group together with deficits of rectal sensory function. In the basal state a significant proximal-to-distal sigmoid colon motility gradient existed only in the control group. Following stimulation with Prostigmin, this gradient was enhanced in the control group but paradoxically reversed in the hysterectomized patients, thus constituting a functional obstruction. Denervation supersensitivity was demonstrable in two patients tested with carbachol provocation but not in control subjects. These findings suggest dysfunction in the autonomic innervation of the hindgut in some patients who had undergone hysterectomy, resulting in severe constipation.

Use of the pudendo-anal reflex in the treatment of neurogenic faecal incontinence.

An electrical stimulator has been devised to treat neurogenic faecal incontinence caused by pudendal nerve neuropathy and works on the basis of repeated stimulation of the pudendo-anal reflex arc. Although conduction in the pudendo-anal reflex arc may be prolonged, and is so in neurogenic faecal incontinence, it must be shown to be present before the method can be used. This stimulation results in an immediate rise in the pressure in the anal canal and a significant increase in the electromyographic activity of the external anal sphincter. Maintenance of the stimulus over a two month period raised the mean resting pressure significantly in the anal canal and increased the reflex and voluntary responses of the external anal sphincter to coughing and squeezing actions respectively. The length of the sphincter was not affected. There was widening of the mean motor unit potential duration, though this was not significant. The resting electromyogram was enhanced after the course of treatment, indicating greater spontaneous activity in the external sphincter. The changes led to seven of the eight patients studied becoming continent at the end of the treatment.

The action of cisapride on the chronic constipation of paraplegia.

Paraplegic patients have intractable constipation associated with prolonged colonic transit time. The agent Cisapride significantly reduced the colonic transit time from 7.7 days to 5.1 days. It also improved the intraluminal tone in the rectum, resulting in a significant reduction in maximal rectal capacity from 305.8 ml to 224.3 ml. There was a reduction in residual urine volume from 51.5 ml to 27.7 ml. The increased number of stools containing transit markers showed that intraluminal mixing was increased by cisapride. Faecal water remained unchanged. A side effect was retention of urine in one subject after sudden withdrawal of the drug but this was avoided by its gradual reduction over 2 days.