Sexual function after resection for rectal cancer

A Gender Perspective on Coloproctological Diseases: A Narrative Review on Female Disorders

Coloproctological diseases, including both benign and malignant conditions, are among the most common diagnoses in clinical practice. Several disorders affect both men and women, while others are unique to women, or women are at a greater risk of developing them. This is due to anatomical, biological, and social conditions and also due to females' exclusive capabilities of reproduction and pregnancy. In this context, the same proctological disease could differ between men and women, who can experience different perceptions of health and sickness. There is a raised awareness about the impact of different diseases in women and a growing need for a personalized approach to women's health. In this review, we aim to summarize the specific features of the main coloproctological diseases, specifically in the female population. This includes common complaints during pregnancy, conditions linked to vaginal delivery, functional consequences after colorectal resections, and conditions presenting a gender disposition.

Comparison of quality of life, symptom and functional outcomes following surgical treatment for colorectal neoplasia

BACKGROUND

Colorectal surgical procedures can have a significant impact on quality-of-life (QoL), functional and symptom outcomes. This retrospective study conducted in a tertiary care center evaluated the influence of four colorectal surgical procedures on patient-reported outcome measures (PROMs).

METHODS

512 patients undergoing colorectal neoplasia surgery between June 2015 and December 2017 were identified via the Cabrini Monash Colorectal Neoplasia database. Primary outcomes measured were the mean changes in PROMs following surgery utilizing the International Consortium of Health Outcome Measures colorectal cancer (CRC) PROMs.

RESULTS

242 patients from 483 eligible patients responded (50% participation rate). Responders and non-responders were comparable in median age (72 vs. 70 years), gender (48% vs. 52% male), time from surgery (<1 and >1 year), overall stage at diagnosis and type of surgery. Respondents underwent either a right hemicolectomy, ultra-low anterior resection, abdominoperineal resection or a transanal endoscopic microsurgery/transanal minimally invasive surgery. Right hemicolectomy patients reported the best post-operative function and reduced symptoms, significantly better (P < 0.01) than ultra-low anterior resection patients who reported the worst outcomes in multiple areas (body image, embarrassment, flatulence, diarrhoea, stool frequency). Furthermore, patients undergoing an abdominoperineal resection reported the worst scores for body image, urinary frequency, urinary incontinence, buttock pain, faecal incontinence and male impotence.

CONCLUSIONS

The differences in PROMs in CRC surgical procedures is demonstrable. The worst post-operative functional and symptom scores were reported after either an ultra-low anterior resection or an abdominoperineal resection. Implementation of PROMs will identify and aid early patient referral to allied health and support services.

Functional results after mesorectal excision for rectal cancer: comparative study among surgical approaches

BACKGROUND

We analyzed the evolution of genitourinary dysfunctions in patients undergoing surgical treatment for rectal cancer, and compared open surgery, laparoscopy, robotic and TaTME.

METHODS

Functional outcomes were evaluate using standardized questionnaires, compiled at the start of treatment, after the end of Radiotherapy, at 1 and 6 months after surgery.

RESULTS

In 72 patients 37.5% had low, 27.8% middle, and 34.7% high rectal cancers. Open technique was performed in 25% of cases, while 29.2% underwent laparoscopy, 20.8% TaTME and 25% robotic. We noted a deterioration in urogenital function: surgical technique can influence the result both in urinary and male sexual function but not ejaculation. Robotics and laparoscopy bring better outcomes than open surgery and TaTME. Female sexuality worsening seems not influenced by the technique. In general age, stage, complications and anastomotic leakage appear to be predictive factors for functional dysfunctions. As reported in literature rectal cancer treatment leads to urogenital worsening: this seems to be progressive in male sexuality only, while female one and urinary function show a slight improvement in the first months, although a full recovery possibility is discussed. Is also reported how robotic and laparoscopy have a lower functional impact. TaTME has gained consensus thank to the excellent oncological and function outcomes, but in our study leads to worse results.

CONCLUSIONS

Mini-invasive techniques guarantee the same oncological result than more invasive ones, but with better functional outcomes and tolerability; robotic surgery seems to be slight superior than laparoscopy, but with longer operative time.

Long-term Voiding and Sexual Function in Male Patients After Robotic Total Mesorectal Excision With Autonomic Nerve Preservation for Rectal Cancer: A Cross-Sectional Study

BACKGROUND

Robotic surgery can help to identify and preserve the autonomic nerves during total mesorectal excision (TME) compared with open surgery or laparoscopy due to the 3-dimensional image and high dexterity of the robotic system. Therefore, this study aimed to assess voiding and sexual function after robotic TME with autonomic nerve preservation. In particular, we focused on the long-term results in male patients operated by a single experienced surgeon.

MATERIALS AND METHODS

We surveyed male patients aged 50 years and below at the time of robotic rectal cancer surgery between November 2011 and July 2018. Patients who died and those who had a recurrence and underwent abdominoperineal resection were excluded. The questionnaire covered the International Prostate Symptom Score (IPSS) and the 5-item version of the International Index of Erectile Function (IIEF-5) for voiding and sexual function, respectively.

RESULTS

Thirty-nine patients (median age, 44 y) were surveyed. IPSS and IIEF-5 scores were 5.7±5.3 and 14.7±8.4, respectively. Only 6 patients (15.4%) complained of poor quality of life due to their urinary symptoms. In sexual function, 10 patients (25.6%) complained severe reduction compared with their preoperative status. The average of postoperative days defined from surgery to the questionnaire was 37.8 months. A significant change in the IIEF-5 score was observed between 1 and 2 years postoperatively (5.8±6.9 vs. 16.5±8.8; P=0.027).

CONCLUSIONS

As we only included male patients who were operated by a single experienced surgeon, the results of robotic TME with pelvic autonomic nerve preservation showed acceptable data in preserving both voiding and sexual functions. Although related clinical factors for poor functional outcomes was not statistically significant due to the small sample size, we could observe an improvement in sexual function between 1 and 2 years after surgery with long-term functional results.

When do defecation function and quality of life recover for patients with non-ostomy and ostomy surgery of rectal cancer?

Background

Rectal cancer (RC) surgery often results in permanent colostomy, seriously limiting the quality of life (QOL) in patients in terms of bowel function. This study aimed to examine defecation function and QOL in RC patients who underwent non-ostomy or ostomy surgery, at different time-points after surgery.

Methods

In total, 82 patients who underwent an ostomy and 141 who did not undergo an ostomy for the treatment of RC at our colorectal surgery department between January 2013 and January 2015 were enrolled. Surgical methods, tumor distance from the anal margin (TD), anastomosis distance from the anal margin (AD) and complications were compered between the non-ostomy and ostomy surgery groups. QOL was compared between the two groups at years 2, 3, and 4 after surgery. The Wexner score and the validated cancer-specific European Organization for Research and Treatment of Cancer (EORTC QLQ-CR30) questionnaire scores were assessed for all patients in January 2017. SPSS 21.0 was utilized for all data analyses.

Results

Surgical methods, TD, and AD significantly differed between the non-ostomy and ostomy surgery groups (all P < .001). However, no differences were found in the number of complications between the groups (P = .483). For the 192 patients undergoing Dixon surgery, role function (RF), global QOL (GQOL), sleep disturbance, and the incidence of constipation showed significant differences between the two groups (P = .012, P = .025, P = .036, and P = .015, respectively). In the 31 cases of permanent ostomy, we observed significant differences in GQOL scores, dyspnea incidence, and financial difficulties across the different years (P = .002, P = .036, and P < .01, respectively). Across all 223 cases, there were significant differences in social function and GQOL scores in the second year after surgery (P = .014 and P < .001, respectively). However, no differences were observed in the other indices across the three time-points.

Conclusions

RC patients undergoing ostomy surgery, especially those with low and super-low RC, revealed poorer defecation function and QOL in the present study. However, 2 years after surgery, most of the defecation and QOL indicators showed recovery.

Laparoscopic and robotic lateral lymph node dissection for rectal cancer

In the era of neoadjuvant chemoradiotherapy/radiotherapy and total mesorectal excision, overall oncological outcomes after curative resection of rectal cancer are excellent, with local recurrence rates as low as 5–10%. However, lateral nodal disease is a major cause of local recurrence after neoadjuvant chemoradiotherapy/radiotherapy and total mesorectal excision. Patients with lateral nodal disease have a local recurrence rate of up to 30%. The oncological benefits of lateral pelvic lymph node dissection (LPLND) in reducing local recurrence, particularly in the lateral compartment, have been demonstrated. Although LPLND is not standard in Western countries, technical improvements in minimally invasive surgery have resulted in rapid technical standardization of this complicated procedure. The feasibility and short- and long-term outcomes of laparoscopic and robotic LPLND have been reported widely. A minimally invasive approach has the advantages of less bleeding and providing a better surgical view of the deep pelvic anatomy than an open approach. With precise autonomic nerve preservation, postoperative genitourinary dysfunction has been reported to be minimal. We review recent evidence on the management of lateral nodal disease in rectal cancer and technical improvements of LPLND, focusing on laparoscopic and robotic LPLND.

Local excision results in comparable survival to radical resection for early-stage rectal carcinoid

BACKGROUND

Controversy exists regarding current National Comprehensive Cancer Network guidelines, which recommend local excision for rectal carcinoids ≤2 cm and radical resection for tumors >2 cm. Given the limited data examining optimal surgical approach for these lesions, we queried a national database to determine the impact of extent of resection on survival.

METHODS

Patients undergoing treatment for clinical stage I and II rectal carcinoid (RC) were identified from the National Cancer Data Base (1998-2012). The association between extent of surgery, tumor size, and the likelihood of pathologic lymph node positivity was examined. Kaplan-Meier analysis was used to compare overall survival.

RESULTS

In total, 1900 patients were identified, of whom 1644 (86.5%) were treated with local excision, and 256 (13.5%) were treated with radical resection. A significant majority of patients with tumors ≤2.0 cm (89.0%) and nearly half with tumors 2.1-4.0 cm (44.8%) or >4.0 cm (45.8%) underwent local excision. Nodal positivity was correlated with tumor size (7.1% positivity with ≤2.0 cm tumors, 31.3% with 2.1-4.0 cm tumors, and 50.0% with >4 cm tumors). However, 5-y survival was equivalent between surgical approaches for tumors ≤2 cm (93.0% versus 93.0%) and tumors 2.1-4.0 cm (76.0% versus 76.0%).

CONCLUSIONS

We demonstrate in early-stage RC that nearly half of intermediate and large tumors are being treated with local excision outside National Comprehensive Cancer Network guidelines. In addition, radical resection does not appear to be associated with improved overall survival for tumors of any size. These findings suggest that the preferred approach to early-stage RCs without aggressive biological characteristics is local excision due to the decreased morbidity and mortality versus radical resection.

Impact on sexual function of surgical treatment in rectal cancer

INTRODUCTION

The development of new surgical techniques and medical devices, like therapeutical multimodal approaches has allowed for better outcomes on patients with rectal cancer (RCa). Owing to that, an increased awareness and investment towards better outcomes regarding patients' sexual and urinary function has been recently observed.

AIM

Evaluate and characterize the sexual dysfunction of patients submitted to surgical treatment for RCa.

MATERIALS AND METHODS

An observational retrospective study including all male patients who underwent a surgical treatment for RCa between January 2011 December 2014 (n=43) was performed, complemented with an inquiry questionnaire to every patient about its sexual habits and level of function before and after surgery.

DISCUSSION

All patients were male, with an average of 64yo. (range 42-83yo.). The surgical procedure was a rectum anterior resection (RAR) in 22 patients (56%) and an abdominoperineal resection (APR) in 19(44%). Sixty three percent described their sexual life as important/very important. Sexual function worsening was observed in 76% (65% with complains on erectile function, and 27% on ejaculation). Fourteen patients (38%) didn't resume sexual activity after surgery. Increased age (p=0.007), surgery performed (APR) (p=0.03) and the presence of a stoma (p=0.03) were predictors of ED after surgery. A secondary analysis found that the type of surgery (APR) (p=0.04), lower third tumor's location (p=0.03) and presence of comorbidities (p=0.013) (namely, smokers and diabetic patients) were predictors of de novo ED after surgery.

CONCLUSIONS

This study demonstrated the clear negative impact in sexual function of patients submitted to a surgical treatment for RCa. Since it is a valued feature for patients, it becomes essential to correctly evaluate/identify these cases in order to offer an adequate therapeutical option.

Intersphincteric Resection Pushing the Envelope for Sphincter Preservation

During the last 15 years, a significant evolution has emerged in the surgical treatment of rectal cancer and restoration of bowel continuity has been one of the main goals. For many years the treatment of distal rectal cancer would necessarily require an abdominoperineal resection and end colostomy. The surgical procedure of intersphincteric resection has been proposed to offer sphincter preservation in patients with low rectal cancer and has been legitimized if executed according to adequate oncologic criteria. This article will discuss the best indications, technical aspects, functional, and oncological outcomes of intersphicteric resection in the management of rectal cancer.

Prospective and Longitudinal Study of Urogenital Dysfunction After Proctectomy for Rectal Cancer

BACKGROUND

Urogenital dysfunctions after rectal cancer treatment are well recognized, although incidence and evolution over time are less well known.

OBJECTIVE

We aimed to assess the evolution of urogenital functions over time after the treatment for rectal cancer.

DESIGN

This is a prospective, longitudinal cohort study.

SETTINGS

This study was conducted at a quaternary referral center for colorectal surgery.

PATIENTS

A total of 250 consecutive patients treated for rectal cancer were prospectively enrolled for urogenital assessment.

MAIN OUTCOME MEASURES

End points were the International Prostatic Symptom Score, the International Index of Erectile Function, and the Female Sexual Index obtained by questionnaires before (baseline status) and after preoperative radiotherapy and 3, 6, and 12 months after surgery.

RESULTS

Overall, 169 patients (68%) responded to the questionnaires. The urinary function decreased temporary after irradiation in men (International Prostatic Symptom Score: 7.8 vs 4.9; p < 0.001). Sexual activity decreased significantly in women after radiotherapy (p = 0.02), and in all patients after surgery (p < 0.001). At 12 months, sexual activity in women declined from 59% before treatment to 36% (p = 0.02). In men, sexual activity (82% vs 57%), erectile function (71% vs 24%), and ejaculatory function (78% vs 32%) decreased from baseline (p < 0.001). Stage T3T4 tumors (OR = 5.72 (95% CI, 1.24-26.36)) and low rectal tumors (OR = 17.86 (95% CI, 1.58-20.00)) were independent factors of worse sexual function.

LIMITATIONS

This study was limited by the proportion of uncompleted questionnaires, especially in women, and by its monocentric feature.

CONCLUSIONS

Most patients experienced sexual dysfunction at 12 months after surgery for rectal cancer, and predictive factors for this dysfunction were related to characteristics of the tumor.

Effects of robotic rectal surgery on sexual and urinary functions in male patients

PURPOSES

This study prospectively assessed the sexual and urinary functions, as well as factors influencing these functions, in patients who underwent open or robotic surgery for rectal cancer.

METHODS

Forty-five consecutive male patients who underwent rectal resection for rectal cancer were prospectively enrolled in this study. Their sexual and urinary functions were assessed through self-administered questionnaires comprising the International Index of Erectile Function (IIEF; sexual function) and the International Prostate Symptom Score (IPSS; urinary function) before and at 3, 6, and 12 months after surgery.

RESULTS

Fifteen patients who underwent robotic surgery and 22 who underwent open surgery were finally analyzed in this study. The total IIEF score and the individual score items did not change at 3, 6 or, 12 months after open or robotic surgery compared with the preoperative values. However, a univariate analysis revealed that age affected the urinary function 12 months after surgery, while both univariate and multivariate analyses revealed that postoperative complications affected the sexual function 12 months after surgery.

CONCLUSIONS

In this non-randomized comparison, the postoperative sexual and urinary functions were comparable between patients who underwent open rectal surgery and those who underwent robotic rectal surgery. Postoperative complications were a risk factor for sexual dysfunction, while age was a risk factor for urinary dysfunction.

Urinary and erectile function in men after total mesorectal excision by laparoscopic or robot-assisted methods for the treatment of rectal cancer: a case-matched comparison

BACKGROUND

Urinary and sexual dysfunction are recognized complications of rectal cancer surgery in men. This study compared robot-assisted total mesorectal excision (RTME) and laparoscopic total mesorectal excision (LTME) with regard to these functional outcomes.

METHODS

A series of 32 men who underwent RTME between February 1, 2009 and December 31, 2010 were matched 1:1 with patients who underwent LTME. The matching criteria were age, body mass index, tumor distance from the anal verge, neoadjuvant chemoradiation therapy, and tumor stage. Urinary and erectile function were evaluated using the International Prostatic Symptom Score (IPSS) and the five-item version of the International Index of Erectile Function (IIEF-5) scale. Data were collected from the two groups at baseline and at 3, 6, and 12 months after surgery and compared.

RESULTS

The mean IPSS score did not differ between the two groups at baseline at any point of measurement. The mean baseline IIEF-5 score was similar between the two groups and was decreased at 3 months. The mean IIEF-5 score was significantly higher in the RTME group at 6 months than in the LTME group (14.1 ± 6.1 vs. 9.4 ± 6.6; p = 0.024). The interval decrease in IIEF-5 scores was significantly higher in the LTME group than in the RTME group at 6 months (4.9 ± 4.5 vs. 9.2 ± 4.7; p = 0.030).

CONCLUSIONS

The men in the RTME group experienced earlier restoration of erectile function than did those in the LTME group. Bladder function was similar during the 12 months after RTME or LTME.

Quality of life in non-early rectal cancer treated by neoadjuvant radio-chemotherapy and endoluminal loco-regional resection (ELRR) by transanal endoscopic microsurgery (TEM) versus laparoscopic total mesorectal excision

BACKGROUND

In selected patients with N0 rectal cancer, endoluminal loco-regional resection (ELRR) by transanal endoscopic microsurgery (TEM) may be an alternative treatment option to laparoscopic total mesorectal excision (LTME). Aim of this study is to evaluate the short- and medium-term quality of life (QoL) from a retrospective analysis of prospectively collected data in patients with iT2-iT3 N0-N+ rectal cancer, who underwent ELRR by TEM or LTME after neoadjuvant radio-chemotherapy (n-RCT).

METHODS

Thirty patients with iT2-iT3 rectal cancer who underwent ELRR by TEM (n = 15) or LTME (n = 15) were enrolled in this study. The choice for one operation or the other was made on the basis of predefined criteria. QoL was evaluated by EORTC QLQ-C30 and QLQ-CR38 questionnaires at admission, after n-RCT and 1, 6, and 12 months after surgery.

RESULTS

No statistically significant differences in QoL evaluation were observed between the two groups, both at admission and after n-RCT. At 1 month after surgery, significantly better results in the ELRR group were observed by QLQ-C30 in: Nausea/Vomiting (p = 0.05), Appetite Loss (p = 0.003), Constipation (p = 0.05), and by QLQ-CR38 in: Body Image (p = 0.05), Sexual Functioning (p = 0.03), Future Perspective (p = 0.05) and Weight Loss (p = 0.036). At 6 months after surgery, a statistically significant worse impact after LTME was observed by QLQ-C30 in: Global Health Status (p = 0.05), Emotional Functioning (p = 0.021), Dyspnea (p = 0.008), Insomnia (p = 0.012), Appetite Loss (p = 0.014) and by QLQ-CR38 in Body Image (p = 0.05) and Defecation Problems (p = 0.001). At 1 year, the two groups were homogenous as assessed by QLQ-C30, whereas the QLQ-CR38 still showed better results of ELRR versus LTME in Body Image (p = 0.006), Defecation Problems (p = 0.01), and Weight Loss (p = 0.005).

CONCLUSIONS

Based on the present series, in selected patients, earlier restoration of patients' functions is observed after ELRR by TEM than after LTME.

Colorectal surgery and its impact on male sexual function

The quality of functional outcome has become increasingly important in view of improvement in prognosis with colorectal cancer patients. Sexual dysfunction remains a common problem after colorectal cancer treatment, despite the good oncologic outcomes achieved by expert surgeons. Although radiotherapy and chemotherapy contribute, surgical nerve damage is the main cause of sexual dysfunction. The autonomic nerves are in close contact with the visceral pelvic fascia that surrounds the mesorectum. The concept of total mesorectal excision (TME) in rectal cancer treatment has led to a substantial improvement of autonomic nerve preservation. In addition, use of laparoscopy has allowed favorable results with regards to sexual function. The present paper describes the anatomy and pathophysiology of autonomic pelvic nerves, prevalence of sexual dysfunction, and the surgical technique of nerve preservation in order to maintain sexual function.

Urinary and erectile function in men after total mesorectal excision by laparoscopic or robot-assisted methods for the treatment of rectal cancer: a case-matched comparison

BACKGROUND

Urinary and sexual dysfunction are recognized complications of rectal cancer surgery in men. This study compared robot-assisted total mesorectal excision (RTME) and laparoscopic total mesorectal excision (LTME) with regard to these functional outcomes.

METHODS

A series of 32 men who underwent RTME between February 1, 2009 and December 31, 2010 were matched 1:1 with patients who underwent LTME. The matching criteria were age, body mass index, tumor distance from the anal verge, neoadjuvant chemoradiation therapy, and tumor stage. Urinary and erectile function were evaluated using the International Prostatic Symptom Score (IPSS) and the five-item version of the International Index of Erectile Function (IIEF-5) scale. Data were collected from the two groups at baseline and at 3, 6, and 12 months after surgery and compared.

RESULTS

The mean IPSS score did not differ between the two groups at baseline at any point of measurement. The mean baseline IIEF-5 score was similar between the two groups and was decreased at 3 months. The mean IIEF-5 score was significantly higher in the RTME group at 6 months than in the LTME group (14.1 ± 6.1 vs. 9.4 ± 6.6; p = 0.024). The interval decrease in IIEF-5 scores was significantly higher in the LTME group than in the RTME group at 6 months (4.9 ± 4.5 vs. 9.2 ± 4.7; p = 0.030).

CONCLUSIONS

The men in the RTME group experienced earlier restoration of erectile function than did those in the LTME group. Bladder function was similar during the 12 months after RTME or LTME.

Robotic total mesorectal excision: operative technique and review of the literature

In recent years, an increasing number of reports have been published on robotic colorectal surgery; this modality has also garnered an increasing amount of attention from the colorectal society. Most of the interest has been in robotic total mesorectal excision (TME) for rectal cancer. The purpose of this article is to briefly introduce our technique for total robotic TME and to review the recent literature regarding robotic TME for rectal cancer to summarize the current evidence on clinical and oncologic outcomes.

A comparative study of voiding and sexual function after total mesorectal excision with autonomic nerve preservation for rectal cancer: laparoscopic versus robotic surgery

PURPOSE

To evaluate the protection of the urogenital function after robot-assisted total mesorectal excision (R-TME) for rectal cancer compared to those of laparoscopic TME (L-TME).

METHODS

69 patients who underwent L-TME (n = 39) or R-TME (n = 30) were prospectively enrolled. Their urogenital function was evaluated by uroflowmetry, a standard questionnaire of the international prostate symptom score (IPSS) and the international index of erectile function (IIEF) before surgery and 1, 3, 6, and 12 months after surgery. The pre- and postoperative IPSS and IIEF scores were compared to detect functional deterioration by paired t test for each group. How postoperative IPSS and IIEF scores and uroflowmetry data deviated from the preoperative values (Δ) were statistically compared between the two groups.

RESULTS

The IPSS score significantly increased 1 month after surgery; the recovery from decreased urinary function took 6 months for patients in the L-TME group (8.2 ± 6.3; P = 0.908) but 3 months in the R-TME group (8.36 ± 5.5; P = 0.075). The ΔIPSS scores were significantly different between the two groups at 3 months (P = 0.036). In male patients (L-TME 20, R-TME 18), the total IIEF score in R-TME and L-TME significantly decreased 1 month after surgery, L-TME gradually recovered over 12 months (46.00 ± 16.9; P = 0.269), but R-TME recovered within 6 months (44.61 ± 13.76; P = 0.067). The ΔIIEF score value was not significantly different at any time between the two groups, but in an itemized analysis of the change in erectile function and sexual desire, there were significant differences at 3 months between the two groups.

CONCLUSIONS

R-TME for rectal cancer is associated with earlier recovery of normal voiding and sexual function compared to patients who underwent L-TME, although this result needs to be verified by larger prospective comparative studies.

Where does pelvic nerve injury occur during rectal surgery for cancer?

AIM

Optimal treatment of rectal adenocarcinoma involves total mesorectal excision with nerve-preserving dissection. Urinary and sexual dysfunction is still frequent following these procedures. Improved knowledge of pelvic nerve anatomy may help reduce this and define the key anatomical zones at risk.

METHOD

The MEDLINE database was searched for available literature on pelvic nerve anatomy and damage after rectal surgery using the key words 'autonomic nerve', 'pelvic nerve', 'colorectal surgery', and 'genitourinary dysfunction'. All relevant French and English publications up to May 2010 were reviewed. Reviewed data were illustrated using 3D reconstruction of the foetal pelvis.

RESULTS

The ligation of the inferior mesenteric artery and dissection of the retrorectal space can cause damage to the superior hypogastric plexus and/or hypogastric nerve. Anterolateral dissection in the 'lateral ligament' area and division of Denonvilliers' fascia can damage the inferior hypogastric plexus and efferent pathways. Perineal dissection can indirectly damage the pudendal nerve.

CONCLUSIONS

In most cases, the pelvic nerves can be preserved during rectal surgery. Complete oncological resection may require dissection close to the nerves where the tumour is located anterolaterally where it is fixed and when the pelvis is narrow.

Urinary and sexual dysfunction after rectal cancer treatment

In light of the improving prognosis for patients with rectal cancer, the quality of functional outcome has become increasingly important. Despite the good functional results achieved by expert surgeons, large multicenter studies show that urogenital dysfunction remains a common problem after rectal cancer treatment. More than half of patients experience a deterioration in sexual function, consisting of ejaculatory problems and impotence in men and vaginal dryness and dyspareunia in women. Urinary dysfunction occurs in one-third of patients treated for rectal cancer. Surgical nerve damage is the main cause of urinary dysfunction. Radiotherapy seems to have a role in the development of sexual dysfunction, without affecting urinary function. Pelvic autonomic nerves are especially at risk in cases of low rectal cancer and during abdominoperineal resection. Data concerning nerve damage during laparoscopic surgery for resection of rectal cancer are awaited. Structured education of surgeons with regard to pelvic neuroanatomy, and systematic registration of identified nerves, could well be the key to improving functional outcome for these patients. Meanwhile, patients should be informed of all associated risks before their operation, and their functional status should be evaluated before and after surgery.

Quality-of-life and surgical treatments for rectal cancer--a longitudinal analysis using the California Cancer Registry

BACKGROUND

Heterogeneous results for research investigating health-related quality of life (HRQL) in patients undergoing sphincter-ablating procedures for rectal cancer are likely due to single institution experiences and measurement of HRQL. To address this heterogeneity, we evaluated HRQL in patients with rectal cancer by type of surgery, location of tumor, and receipt of adjuvant therapy using an HRQL instrument that has not been used to address rectal cancer patients in a population-based sample over time.

METHODS

The Functional Assessment of Cancer Therapy-Colorectal instrument was administered at 9 and 19 months after diagnosis to a consecutive sample of 160 patients in Northern California identified by the California Cancer Registry. A broad multidimensional interpretation of HRQL was used to examine the impact of tumor location and treatment status, stage of disease, age, and gender.

RESULTS

In general, men had lower social well-being scores, and younger patients had lower physical and emotional well-being scores and colorectal concerns scores. We found no differences in HRQL by either tumor location or type of surgery, at either 9 or 19 months after diagnosis. Lower physical well-being and greater adverse colorectal concerns were reported at 9 months among patients who received adjuvant therapy; however, only adverse colorectal concerns persisted over time.

CONCLUSIONS

This study provides additional evidence that sphincter-ablating procedures do not necessarily reduce quality of life in patients with rectal cancer. Distinctive features of this study include a broad multidimensional interpretation of HRQL, the 19 months of longitudinal follow-up, and a prospective population-based study design.

Consenting for pelvic nerve injury in colorectal surgery: need to address age and gender bias

INTRODUCTION

Pelvic nerve injury is a recognised complication following pelvic dissection in colorectal surgery. It can lead to urinary and sexual dysfunction in men and women, which varies from 5-40% depending on the surgery and the underlying pathology. Sexual dysfunction can manifest as erectile dysfunction in men and as dyspareunia and failure to achieve sexual arousal/orgasm in women. The aim of this study was to evaluate consent for these complications prior to surgery.

PATIENTS AND METHODS

We carried out a retrospective audit on patients who had undergone elective colorectal surgery involving pelvic dissection over a 2-year period (June 2006 to June 2008) at University Hospital of North Staffordshire. We reviewed the consent forms and medical records of these patients, specifically looking for documentation of pelvic nerve injury, sexual dysfunction or erectile dysfunction prior to surgery. Only patients who had documented pelvic dissection in their operative notes were included in the audit, and those who were deemed unable to consent were excluded.

RESULTS

Medical records of 118 patients were reviewed. Of this cohort, 31% were women (n = 37). Malignancy was the indication for surgery in 79% of women and 88% of men. Consent for the procedure was obtained by a consultant in 73% (n = 86) of patients and by a middle-grade surgeon in the remaining 27% (n = 32). Only two women were consented for pelvic nerve injury whilst this number was 41 for men (5% vs 51%). Patients younger than 50 years were more consistently informed of the risks (50%) compared to the over 50-year-olds (34%). Only eight patients (males 6, females 2) were consented for urinary dysfunction.

CONCLUSIONS

The risk of pelvic nerve injury is not frequently stated, which is more common in women and the elderly. Overall, only 36% of patients were consented for pelvic nerve injury, while only 5% of women were consented. Is this professional discretion, or evidence that surgeons are not being assiduous enough when obtaining consent, which may leave them vulnerable to medicolegal claims? Introduction of procedure-specific consent forms would be a method to address this issue.

Sexual and urinary dysfunction after proctectomy for rectal cancer

Sexual and urinary dysfunction occur frequently after rectal surgery. Total mesorectal excision (TME) is currently the optimal technique for resection of rectal cancer, providing superior carcinological and functional outcomes. Age, pre-operative radiation therapy, abdominoperineal resection, and surgery which fails to respect the "sacred planes" of TME are the four major risk factors for post-operative sexual and urinary sequelae. In the era of TME, postoperative sexual dysfunction ranges from 10-35%, depending on the scores used to assess it, while urinary sequelae have decreased to less than 5%. The place of laparoscopic surgery remains to be defined, particularly with respect to these complications. It is essential to inform the patient pre-operatively about the possibility of such disorders not only for patient informed consent but also to help with correct post-operative management of the problem. Management is multifaceted, and includes psychological, pharmacological, and sometimes surgical therapy.

Male urinary and sexual functions after mesorectal excision alone or in combination with extended lateral pelvic lymph node dissection for rectal cancer

BACKGROUND

Mesorectal excision reduced the incidence of genitourinary dysfunction compared with conventional surgery. In Japan, extended lateral pelvic lymph node dissection (ELD) is added to mesorectal excision when lateral pelvic node metastasis is suspected. The aim of this study was to evaluate male genitourinary function after mesorectal excision or mesorectal excision plus ELD for rectal cancer.

METHODS

According to the degree of pelvic-plexus preservation (PPP) and ELD, patients were grouped into PG1, mesorectal excision alone (bilateral PPP without ELD) (n = 27); PG2, bilateral PPP with ELD (n = 12); PG3, unilateral PPP with ELD (n = 26); and PG4, no PPP with ELD (n = 4). The assessment included measurements of the time interval to residual urine becoming <50 mL, interviews assessing sexual function, and nocturnal penile tumescence measurements.

RESULTS

Proportions of patients with residual urine becoming <50 mL within 14 days after surgery were 96% in PG1, 73% in PG2, 23% in PG3, and 0% in PG4 (P < .001). Proportions of patients answering the ability to maintain sexual intercourse at 1 year were 95% in PG1, 56% in PG2, 45% in PG3, and 0% in PG4 (P < .001). Proportions of patients having nocturnal penile rigidity of >65% at 1 year were 95% in PG1, 33% in PG2, 50% in PG3, and 0% in PG4 (P < .001).

CONCLUSIONS

Patients undergoing mesorectal excision alone can expect excellent genitourinary function, but functional results after mesorectal excision plus ELD are far worse. Degrees of dysfunction depend on the extents of both autonomic nerve resection and ELD.

Preservation of sexual and bladder function after laparoscopic rectal surgery

BACKGROUND

There have recently been reports of higher levels of bladder and sexual dysfunction in men after laparoscopic rectal surgery when compared with those undergoing open surgery. This has led some surgeons to question the role of the laparoscopic approach to rectal surgery.

METHOD

This study represents a retrospective analysis of a prospectively collected database for a single unit, comprising 2406 patients undergoing laparoscopic colorectal surgery. Bladder function, potency and ejaculation were assessed at postoperative clinic visits for men undergoing laparoscopic low or ultra-low anterior resection and abdominoperineal excision of the rectum.

RESULTS

A total of 101 males were identified (median age 62 years: range 20-90 years). Urinary dysfunction was reported by six (6%) patients. Six (6%) patients had sexual dysfunction, manifesting as retrograde ejaculation in four patients and erectile dysfunction in a further two patients.

CONCLUSIONS

The low rates of sexual dysfunction in this unit may be attributable to pelvic dissection only being undertaken by experienced, dedicated laparoscopic colorectal surgeons. Laparoscopic restorative surgery for rectal cancer has been performed here only since 2001 after considerable experience accrued in operating on benign rectal disease and colon cancer. Studies from elsewhere reporting poorer functional outcomes have probably included a significant number of patients on the surgeons''learning curve'.

Risk factors for sexual dysfunction after rectal cancer treatment

This study aimed to identify risk factors for long-term sexual dysfunction (SD) after rectal cancer treatment. Patients with resectable rectal cancer were randomised to total mesorectal excision with or without preoperative radiotherapy (PRT). Preoperatively and at 3, 6, 12, 18 and 24 months postoperatively, SD scores were filled out in questionnaires. Possible risk factors for postoperative deterioration of sexual functioning, including patients' demographics, tumour-specific factors and treatment-related variables, were investigated with univariate and multivariable regression analyses. Increase in general SD, erectile dysfunction and ejaculatory problems were reported by 76.4, 79.8 and 72.2 percent of the male patients, respectively. Risk factors were nerve damage, blood loss, anastomotic leakage, PRT and the presence of a stoma. In female patients, increase in general SD, dyspareunia and vaginal dryness were reported by 61.5, 59.1 and 56.6 percent, respectively. This was associated with PRT and the presence of a stoma. SD occurs frequently after rectal cancer treatment and is caused by surgical (nerve) damage with an additional effect of PRT. Patients should be informed preoperatively, and education of surgeons in neuroanatomy may provide the key to the improvement of functional outcome.

Evidence and research in rectal cancer

The main evidences of epidemiology, diagnostic imaging, pathology, surgery, radiotherapy, chemotherapy and follow-up are reviewed to optimize the routine treatment of rectal cancer according to a multidisciplinary approach. This paper reports on the knowledge shared between different specialists involved in the design and management of the multidisciplinary ESTRO Teaching Course on Rectal Cancer. The scenario of ongoing research is also addressed. In this time of changing treatments, it clearly appears that a common standard for large heterogeneous patient groups have to be substituted by more individualised therapies based on clinical-pathological features and very soon on molecular and genetic markers. Only trained multidisciplinary teams can face this new challenge and tailor the treatments according to the best scientific evidence for each patient.

Impact of laparoscopic surgery on bladder and sexual function after total mesorectal excision for rectal cancer

BACKGROUND

Bladder and sexual dysfunction are well-documented complications of rectal cancer surgery. This study aimed to determine whether laparoscopy can improve the outcome of these dysfunctions or not.

METHODS

The study included 63 of the 116 patients who underwent surgery for rectal cancer between 2002 and 2006. Bladder and male sexual function were studied by means of a questionnaire on the basis of the International Prostatic Symptom Score (IPSS) and International Index of Erectile Function (IIEF). In addition, bladder function was determined by means of postvoid residual urine measurement and uroflowmetry. Postoperative functions were compared with the preoperative data to detect subjective functional deterioration. Outcomes were compared between patients who underwent open (group 1, n = 29) and laparoscopic (group 2, n = 34) total mesorectal excision.

RESULTS

Only minor disturbances of bladder function were reported for one patient (3%) in group 1 and three patients (9%) in group 2 (p > 0.05). Impotency after surgery was experienced by 6 of 17 preoperatively sexually active males (29%) in group 1 and 1 of 18 males (5%) in group 2 (p = 0.04). Similarly, 5 of 10 women (50 %) in group 1 and 1 of 14 women (7%) in group 2 felt that their overall level of sexual function had decreased as a result of surgery (p = 0.03).

CONCLUSIONS

Open rectal cancer resection is associated with a higher rate of sexual dysfunction, but not bladder dysfunction, compared with laparoscopic surgery. Laparoscopic rectal cancer surgery offers a significant advantage with regard to preservation of postoperative sexual function and constitutes a true advance in rectal cancer surgery compared with the open technique. The proposed advantages can be attributed to improvement in visibility by the magnification feature of laparoscopic surgery.

Total mesorectal excision and management of rectal cancer

Treatment of rectal cancer over the last two decades has evolved with changes in techniques of surgery and radiation based on national and international trials. Preoperative adjuvant radiation is now preferred over postoperative adjuvant radiation, and total mesorectal excision with preservation of pelvic nerves is the gold standard for surgical treatment of rectal cancer. Preservation of the anal sphincter without compromising oncological outcome is an additional benefit for patients with carcinoma in the distal rectum. Further progress in imaging and a multidisciplinary team approach will facilitate individualization of treatment strategy with more focus on quality of life.

Quality of life outcomes in 599 cancer and non-cancer patients with colostomies

BACKGROUND

A colostomy is known to impact negatively on a patient's quality of life (QOL). Concerns include incontinence, rectal discharge, gas, difficulties in returning to work, decreased sexual activity, and travel and leisure challenges. Reports have described QOL outcomes in cancer patients with colostomies and inflammatory bowel syndrome with colostomies, but little has been written regarding a comparison of cancer and non-cancer populations. The purpose of this study was to describe QOL issues of colostomy patients and compare these issues in cancer and non-cancer participants.

MATERIALS AND METHODS

A QOL-ostomy questionnaire was mailed to 2455 California members of the United Ostomy Association.

RESULTS

Of the 1457 respondents (59%), 599 had a colostomy. Most were results from cancer (517/599), with colorectal cancer being the most common diagnosis. The most common benign diagnoses were inflammatory bowel disease and diverticulitis. Demographics were similar, except for more females in the non-cancer group (76%), and increased length of time with colostomy from the cancer group (mean 135.9 versus 106.4 months, P = 0.03). Common QOL problems included sexual problems, gas, constipation, travel difficulties, and dissatisfaction with appearance. Overall, cancer patients had less difficulty adjusting to their colostomies.

CONCLUSIONS

Results confirmed the negative impact of a colostomy on QOL. While patients with cancer had a better overall QOL than those with benign processes, concerns were common to all colostomy patients. These results provide health care practitioners with information useful in discussing QOL concerns during pre-operation treatment decisions and post operative teaching and follow-up care.

Impact of Autonomic Nerve Preservation and Lateral Node Dissection on Male Urogenital Function after Total Mesorectal Excision for Lower Rectal Cancer

INTRODUCTION

Urogenital dysfunction is a well recognized complication of rectal cancer surgery. The aim of this study was to assess the impact of autonomic nerve preservation (ANP) and lateral node dissection (LND) on male urogenital function after total mesorectal excision for lower rectal cancer.

METHODS

We studied, using a questionnaire, preoperative and current urogenital function in 47 male patients who underwent total mesorectal excision with the ANP technique for lower rectal cancer. Patients with and without LND were analyzed separately.

RESULTS

A total of 37 patients (78.7%) (22 patients without LND, 15 with LND) returned the questionnaire. Among the 15 patients with LND, 2 underwent unilateral ANP. One patient without LND had urinary dysfunction preoperatively, and among the other 21 patients only 2 (9.5%) reported minor urinary complications postoperatively. After LND, 5 patients (33%) reported minor complications; there were no severe complications. Among patients who were sexually active prior to the operation, 90% and 70% of patients without LND and 50% and 10% of those with LND maintained sexual activity and ejaculation, respectively. However, 50% of patients who underwent low anterior resection or Hartmann resection without LND and all patients with abdominoperineal resection or LND reported reduced overall sexual satisfaction.

CONCLUSIONS

The ANP technique offers the great advantage of maintaining urogenital function after rectal cancer surgery. After LND, although the ANP technique minimized urinary dysfunction, sexual function, particularly ejaculation, was often damaged. Careful follow-up is important even after ANP to improve postoperative sexual satisfaction.

Adjuvant radiotherapy is associated with increased sexual dysfunction in male patients undergoing resection for rectal cancer: a predictive model

OBJECTIVES

The objectives of this study were to evaluate the effect of radiotherapy (RT) on sexual function in patients undergoing oncologic resection for rectal cancer, and to develop a mathematical model for quantifying the risk of sexual dysfunction through time for this group of patients.

METHODS

Data were prospectively collected on patients undergoing proctosigmoidectomy (group 1: n = 101) or adjuvant radiotherapy (40-50 Gy) and resection (group 2: n = 100) for rectal cancer at a tertiary referral center between December 1998 and July 2004. Study end points were recorded at 7 time intervals (preoperatively, 4 months, 8 months, 1 year, 2 years, 3 years, and 4 years after surgery) and included: 1) ability to have an erection, 2) maintain an erection, 3) attain orgasm, 4) dry orgasm, and 5) whether they were sexually active. Multilevel logistic regression analysis for repeated measures was used to identify factors associated with the sexual dysfunction. A predictive model was developed and internally validated by comparing observed and model-predicted outcomes.

RESULTS

Radiotherapy had an adverse effect on the ability to get an erection, maintain an erection, attain orgasm, and being sexually active in comparison with patients undergoing surgery alone (7.4%, 12.6%, 16.2%, and 13.7% reduction 8 months after surgery respectively; P < 0.05). The effect of sexual dysfunction deteriorated with age (odds ratio for erectile function, 0.40 per 10-year increase in age; 95% confidence interval, 0.29-0.49; P < 0.001). A significant variability in sexual function was present among the 7 time points with a maximal deterioration occurring at 8 months after surgery with subsequent slow but not complete recovery (P < 0.001). The predictive model showed adequate discrimination on 4 of the 5 domains of sexual dysfunction (area under the receiver operating characteristic curve >0.70).

CONCLUSIONS

Radiotherapy has an adverse effect on sexual function, the effect being maximal at 8 months after surgery. The risk of sexual dysfunction can be quantified preoperatively using the proposed index and can assist patients in making better informed choices on the type of treatment they receive.

Bladder and sexual function following resection for rectal cancer in a randomized clinical trial of laparoscopic versus open technique

BACKGROUND

Bladder and sexual dysfunction are recognized complications of mesorectal resection. Their incidence following laparoscopic surgery is unknown.

METHODS

Bladder and sexual function were assessed in patients who had undergone laparoscopic rectal, open rectal or laparoscopic colonic resection as part of the UK Medical Research Council Conventional versus Laparoscopic-Assisted Surgery In Colorectal Cancer (CLASICC) trial, using the International Prostatic Symptom Score, the International Index of Erectile Function and the Female Sexual Function Index. Sexual and bladder function data from the European Organization for Research and Treatment of Cancer QLQ-CR38 collected in the CLASICC trial were used for comparison.

RESULTS

Two hundred and forty-seven (71.2 per cent) of 347 patients completed questionnaires. Bladder function was similar after laparoscopic and open rectal operations for rectal cancer. Overall sexual function and erectile function tended to be worse in men after laparoscopic rectal surgery than after open rectal surgery (overall function: difference - 11.18 (95 per cent confidence interval (c.i.) -22.99 to 0.63), P = 0.063; erectile function: difference -5.84 (95 per cent c.i. -10.94 to -0.74), P = 0.068). Total mesorectal excision (TME) was more commonly performed in the laparoscopic rectal group than in the open rectal group. TME (odds ratio (OR) 6.38, P = 0.054) and conversion to open operation (OR 2.86, P = 0.041) were independent predictors of postoperative male sexual dysfunction. No differences were detected in female sexual function.

CONCLUSION

Laparoscopic rectal resection did not adversely affect bladder function, but there was a trend towards worse male sexual function. This may be explained by the higher rate of TME in the laparoscopic rectal resection group.

Ten-year historic cohort of quality of life and sexuality in patients with rectal cancer

PURPOSE

In various studies, type of surgery, age, and gender had different impact on sexuality and quality of life in patients with rectal cancer. This study was designed to investigate how sexuality and quality of life are affected by age, gender, and type of surgery.

METHODS

A total of 516 patients who had undergone surgery for rectal cancer in our department from 1992 to 2002 were included. Within one year after the operation, 117 patients died. Questionnaires were sent to 373 patients 12 to 18 months after surgery. We received quality of life data from 261 patients. Comparisons were made after adjusting age, gender, and type of surgical procedure.

RESULTS

For patients receiving abdominoperineal resection sexuality was most impaired. Significant differences were seen in symptom and function scales between males and females. Females reported more distress from the medical treatment insomnia, fatigue, and constipation. Both genders had impaired sexual life; however, males had significantly higher values and felt more distressed by this impairment. Younger females felt more distress through impaired sexuality. In males sexuality was impaired independent of age. Adjuvant therapy had no influence on sexuality but on quality of life one year after surgery.

CONCLUSIONS

Assessing quality of life with general and specific instruments is helpful to determine whether patients improved through the treatment. The study showed that gender, age, and type of surgery influence sexuality and that quality of life after surgery for rectal cancer is impacted. Because quality of life is a predictor for complications and survival, availability of such data may help to direct supportive treatment to improve outcome.

Sexual function after rectal excision

BACKGROUND

Rectal excision is associated with a risk of autonomic nerve damage and associated sexual dysfunction (SD). The evolution of our understanding of the anatomy and physiology of sexual function together with continual refinement of surgery for both benign and malignant disease has led to a decrease in the incidence of SD after rectal surgery. A knowledge of the degree of risk of postoperative SD is important both for the patient and as a benchmark for audit of individual colorectal practice.

METHODS

The available literature on the anatomy, physiology and surgical aspects of this topic has been researched through the Medline database. The more recently available data are reviewed in the context of the historical evolution of surgery for benign and malignant rectal disease.

RESULTS AND CONCLUSIONS

In the best hands, permanent impotence occurs in less than 2% of patients following restorative proctocolectomy and at a similarly low rate after proctocolectomy and ileostomy. Isolated ejaculatory dysfunction is also numerically a minor problem post operation for benign disease. Patient age is the most important predictor of SD after surgery for rectal cancer. The incidence of permanent impotence remains high (>40%) after abdomino-perineal excision of the rectum (APE) but the continued decline in the use of this operation in favour of low anterior resection (LAR), which carries about half the risk of impotence compared to sphincter ablating surgery, is likely to have resulted in a fall in the absolute number of patients rendered impotent as a result of rectal cancer surgery. Anatomical dissection of the pelvis with preservation of the named autonomic fibres results in a low and predictable rate of sexual morbidity. Surgeons could profitably spend more time with their patients discussing the possible effects of surgery on sexual function. Further research is required to determine the effects of adjuvant therapy for rectal cancer on sexual function.

Bladder and sexual dysfunction following laparoscopically assisted and conventional open mesorectal resection for cancer

BACKGROUND

Bladder and sexual dysfunction, secondary to pelvic nerve injury, are recognized complications of rectal resection. This study investigated the frequency of these complications following laparoscopically assisted and conventional open mesorectal resection for cancer.

METHODS

A total of 170 patients with rectal cancer was identified from a previous randomized trial of laparoscopic versus open resection. A retrospective analysis of bladder and sexual function before and after operation was performed by means of postal questionnaires and telephone interviews.

RESULTS

At the time of the study, 111 (65 per cent) of the 170 patients were alive, of whom 80 (72 per cent) responded. Of the responders, 40 patients had undergone laparoscopically assisted resection and 40 had had an open operation. No significant deterioration in bladder function following operation was observed, although two patients in the laparoscopic group required long-term intermittent self-catheterization. A significant difference in male, but not female, sexual function was noted, with seven of 15 sexually active men in the laparoscopic group reporting impotence or impaired ejaculation, compared with only one of 22 patients having an open operation (P = 0.004). All patients with bladder or sexual dysfunction in the laparoscopic group had resection of either bulky or low rectal cancers.

CONCLUSION

Laparoscopically assisted rectal resection is associated with a higher rate of male sexual dysfunction, but not bladder dysfunction, compared with the open approach. This has implications, particularly for sexually active males with bulky or low rectal cancers, when deciding the best operative approach.

Assessment of sexual and voiding function after total mesorectal excision with pelvic autonomic nerve preservation in males with rectal cancer

PURPOSE

Total mesorectal excision with pelvic autonomic nerve preservation has been reported to be an optimal surgery for rectal cancer. It minimizes local recurrence and sexual and urinary dysfunction. The aim of this study was to assess the safety of total mesorectal excision with pelvic autonomic nerve preservation in terms of voiding and sexual function in males with rectal cancer.

METHODS

We performed urine flowmetry using Urodyn and a standard questionnaire using the International Index of Erectile Function and the International Prostate Symptom Score before and after surgery in 68 males with rectal cancer.

RESULTS

Significant differences in mean maximal urinary flow rate and voided volume were seen before and after surgery (18.9 +/- 5.7 13.7 +/- 7.0, 240 +/- 91.9 143 +/- 78; < 0.05, < 0.05, respectively), but no differences in residual volume before and after surgery were apparent (4.4 +/- 2.6 8.1 +/- 4.4; > 0.05). The total International Prostate Symptom Score was increased after surgery from 6.2 +/- 5.8 to 9.8 +/- 5.9 ( < 0.05). There were no changes of score for one of each of seven International Prostate Symptom Score items in 49 patients (73.5 percent) to 61 patients (89.7 percent). Five International Index of Erectile Function domain scores (erectile function, intercourse satisfaction, orgasmic function, sexual desire, and overall satisfaction) were significantly decreased after surgery (18.2 +/- 9.3 13.5 +/- 9, 8.4 +/- 4.2 4.4 +/- 2.9, 5.8 +/- 2.9 4.4 +/- 2.9, 6.1 +/- 2.4 4.8 +/- 2, 6.1 +/- 2.2 4.5 +/- 2.3, respectively; < 0.05). Erection was possible in 55 patients (80.9 percent); penetration ability was possible in 51 patients (75 percent). Complete inability for erection and intercourse was observed in three patients (5.5 percent). Retrograde ejaculation was noted in 9 patients (13.2 percent). International Index of Erectile Function domains such as sexual desire and overall satisfaction were greatly decreased in 39 patients (57.4 percent) and 43 patients (63.2 percent), respectively. Multiple regression analysis of factors affecting postoperative sexual dysfunction showed that age older than 60 years (sexual desire, P = 0.019), within six months (erectile function, P = 0.04; intercourse satisfaction, P = 0.011; orgasmic function, P = 0.03), lower rectal cancer (erectile function, P = 0.02; intercourse satisfaction, P = 0.036; orgasmic function, P = 0.027) were significant factors adversely affecting sexual function.

CONCLUSION

Total mesorectal excision with pelvic autonomic nerve preservation showed relative safety in preserving sexual and voiding function. The International Prostate Symptom Score and International Index of Erectile Function questionnaires were useful in assessing urinary and sexual function.

Treatment of colon and rectal cancer

During the past two decades, remarkable progress has been made in the treatment of cancers of the colon and rectum. Both oncologic and functional outcomes for this disease have improved dramatically. The reasons for the improved patient outcome in this disease include advances in knowledge of the biology of the disease, advances in surgical instrumentation and techniques, and ongoing advances in multimodality therapy, with the use of radiation and chemotherapy as an adjuvant to surgical resection. This review details many of these advances in a comprehensive manner and illustrates the necessity of a multidisciplinary approach for optimizing outcome for patients with these cancers.

Urologic and sexual morbidity following multimodality treatment for locally advanced primary and locally recurrent rectal cancer

AIMS

In the treatment of patients with locally advanced primary or locally recurrent rectal cancer much attention is given to the oncological aspects. In long-term survivors, urogenital morbidity can have a large effect on the quality of life. This study evaluates the functional outcome after multimodality treatment in these patient groups.

PATIENTS AND METHODS

Between 1994 and August 1999, 55 patients with locally advanced primary and 66 patients with locally recurrent rectal cancer were treated with multimodality treatment: i.e. high-dose preoperative external beam radiation therapy, followed by extended surgery and intraoperative radiotherapy. The medical records of the 121 patients were reviewed. To assess long-term urogenital morbidity, all patients still alive, with a minimum follow-up of 4 months, were asked to fill out a questionnaire about their voiding and sexual function. Seventy-six of the 79 currently living patients (96%) returned the questionnaire (median FU 14 months, range 4-60).

RESULTS

The questionnaire revealed identifiable voiding dysfunction as a new problem in 31% of the male and 58% of the female patients. In 42% of patients after locally advanced primary and 48% after locally recurrent rectal cancer treatment bladder dysfunction occurred. The preoperative ability to have an orgasm had disappeared in 50% of the male and 50% of the female patients, and in 45% of patients after locally advanced primary and in 57% after locally recurrent rectal cancer treatment.

CONCLUSION

Multimodality treatment for locally advanced primary and recurrent rectal cancer results in acceptable urogenital dysfunction if weighed by the risk of uncontrolled tumour progression. Long-term voiding and sexual function is decreased in half of the patients. Preoperative counselling of these patients on treatment-related urogenital morbidity is important.

Comparison of quality of life in patients undergoing abdominoperineal extirpation or anterior resection for rectal cancer

OBJECTIVE

To evaluate the quality of life (QoL) in patients undergoing anterior resection (AR) or abdominoperineal extirpation (APE) for rectal cancer in a sample of patients recruited from a field trial.

SUMMARY BACKGROUND DATA

Abdominoperineal resection has been reported to put patients at higher risk of disruption to QoL than sphincter-preserving surgery.

METHODS

Fifty patients treated with AR and 23 patients treated with APE were prospectively followed up. All patients were treated in curative attempt and were disease-free throughout the study. QoL was assessed before surgery and 6 to 9 and 12 to 15 months after surgery.

RESULTS

Multivariate analysis of variance and subsequent post hoc comparisons revealed a main effect for time (role function, emotional function, body image, future perspective, and micturition-related problems) and group in favor of APE (sleeping problems, constipation, diarrhea), and a time-by-group interaction (role function). No significant results were obtained for the remaining scores, but patients undergoing APE consistently had more favorable QoL scores than those undergoing AR. Multivariate analysis and post hoc comparisons revealed a particularly poor QoL for patients undergoing low AR. They had a significantly lower total QoL, role function, social function, body image, and future perspective, and more gastrointestinal and defecation-related symptoms than patients undergoing high AR.

CONCLUSION

Patients undergoing APE do not have a poorer QoL than patients undergoing AR. Patients undergoing low AR have a lower QoL than those undergoing APE. Attention should be paid to QoL concerns expressed by patients undergoing low AR.

Anatomy of Denonvilliers' fascia and pelvic nerves, impotence, and implications for the colorectal surgeon

BACKGROUND

The development and anatomy of Denonvilliers' fascia have been controversial for many years and confusion exists about its operative appearance. Better appreciation of this poorly understood anatomy, and its significance for impotence after rectal dissection, may lead to further functional improvements in pelvic surgery.

METHOD

A literature review of the embryology and anatomy of Denonvilliers' fascia and impotence after pelvic rectal surgery was undertaken.

RESULTS

Denonvilliers' fascia has no macroscopically discernible layers. The so-called posterior layer refers to the fascia propria of the rectum. The incidence of erectile and ejaculatory dysfunction after rectal excision is high in older patients, and when performed for rectal cancer. There is no consensus about the relationship of Denonvilliers' fascia to the plane of anterior dissection for rectal cancer.

CONCLUSION

Colorectal surgeons should focus on the important anatomy between the rectum and the prostate to improve functional outcomes after rectal excision. A classification of the available anterior dissection planes is proposed. Surgeons should be encouraged to document the plane used as well as outcome in terms of sexual function.

Avoiding long-term disturbance to bladder and sexual function in pelvic surgery, particularly with rectal cancer

Urinary and sexual dysfunction are common problems after rectal cancer surgery, and the likely cause is damage to the pelvic autonomic nerves during surgery. In recent years, attention has been focused on preserving the autonomic nerves through a technique which is usually combined with total mesorectal excision or radical pelvic lymphadenectomy. The autonomic nerves consist of the paired sympathetic hypogastric nerve, sacral splanchnic nerves, and the pelvic autonomic nerve plexus. We will demonstrate the anatomy of the pelvic autonomic nerves and the relation of these nerves to the mesorectal fascial planes, and review the medical literature on sexual and urinary dysfunction after rectal cancer surgery with and without autonomic nerve preservation.