rectal prolapse
TRANSCRIPT
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Approach to Pt. With Something Coming out of AnusDR. HASSAN MAHMUDPGR TEACHING SURGERY UNITA.B.S.T.H
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History
Usama 15 year Male Student Kotla Gujrat Opd 15-03-16
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Presenting Complaint
Something coming out of anus- 4years Bleeding PR on & off- 4years
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HOPI
Pt. was alright 4 years back when he noticed something coming out of anus. It was initially small but gradually increased in size. It is including whole circumference of anus. It always comes out during defecation or straining. It is associated with bleeding per rectum. It is of bright red color & comes after defecation. There is no associated bruises on skin or Hx of gum bleed. No Hx of constipation, diarrhea, jaundice. He has Hx of sodomy.
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Cont.
No past medical or surgical Hx No family Hx No personal Hx No drug Hx
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Impression
Rectal Prolapse Large rectal polyp Hemorrhoids
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Examination
A young healthy boy, well oriented, lying comfortably on bed
Vitals: Pulse: 82/min Temp: 98 degree F B.P: 110/70 mmHg R.R: 24/min
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Examination
A pinkish mass coming out of anus during straining, covering anus circumferentially, soft in consistency, non tender, no bleeding spots, having concentric rings and grooves around its wall, reduced manually.
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Cont.
GIT: Normal CVS: Normal CNS: Normal Resp: Normal Genitourinary: Normal
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Investigations: Baselines
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USG Abdomen
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Rectal ProlapseDR. HASSAN MAHMUDPGR TEACHING SURGERY UNITA.B.S.T.H
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Outline
Introduction Types Etiology Pathophysiology Clinical Features Evaluation Examination Investigations Non surgical Management Surgical Management Complication
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Introduction
Rectal Prolapse is circumferential descent of rectum (bowel) through the anal canal.
Common in infants, children & elderly
Common in females (6:1)
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Types
Partial or Rectal mucosal prolapse:• Protusion of the rectoanal mucosa & submucosa
Complete prolapse or Procidentia• Include mucosa, submucosa & muscles
Internal prolapse or intussusception:•Occult rectoanal intussusception• Prolapse does not protude from the anus•Not always pathologic/symptomatic• Occurs in 50% of defograms
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Mucosal vs Full Rectal Prolapse
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Mucosal vs Full Rectal Prolapse
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Difference Between Rectal Prolapse and Hemorrhoids
Rectal Prolapse Hemorroids
Tissue Folds Circumferential Radial
Abnormality on Palpation
Double Rectal Wall Hemorrhoidal Plexus
Resting and Squeeze Pressures
Decreased Normal
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Difference Between Rectal Prolapse and Hemorrhoids
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Etiology Extreme of age Children: first three years (male=female)
● Cystic fibrosis, malnutrition, diarrhea, severe cough, parasites
Constipation (component of colonic dysmotility)Weakening/malfunctioning of pelvic floor/sphinctersAnismus – spastic pelvic floorPudendal neuropathy (obstetric injuries, aging)Sphincter dysfunction (trauma, aging)Decreased sacral curvatureMultipara femaleDiarrhea, cough, malnutritionDecreased ischiorectal fossa fatMental illness (depression, autism)
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Pathophysiology Rectum passes through opening in pelvic floor funnel
Intussusception occurs much like what happened with hiatal hernia
• Lateral & rectosigmoid attachments relax
• Mesorectum lengthens
• Anal sphincters stretch
• Rectal prolapse
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Pathophysiology
Associated pelvic anatomic abnormalities
● Deep anterior cul de sac
● Redundant sigmoid colon
● Patulous anal sphincter
● Loss of posterior rectal fixation
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Clinical Features Mucus Discharge
Rectal Bleeding
Soilage
Feeling of incomplete evacuation
Diarrhea, constipation, Fecal Incontinence
Itching
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Clinical Features
Constipation is associated with prolapse in 30%-70% of pts
Chronic straining, sensation of anorectal blockage, need of digital evacation
60% have coexisting incontinence ● Stretching of anal sphincters ● Impaired rectal compliance
20-35% have associated urinary incontinence
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Evaluation
Ask patient to produce the prolapse
If not obvious
● straining in sitting position (toilet)
● phosphate enema or glycerine suppositories (children) to induce strain
Look for associate vaginal prolapse (15-30%)
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Examination
Concentric rings and grooves
Perianal skin excoriation and maceration
Chronic prolapse● Inflamed, edematous and irregular surface ● Biopsies to rule out neoplasia
Digital examination● Sphincter pressures
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Investigations Colonoscopy or barium enema
● Exclude tumor● Biopsy of ulcers and mass lesions
Defecography • Megarectum, incontinence, nonrelaxing puborectalis, abnormal perineal descent, rectocele, mucosal prolapse
N Normal rectal fixation & sphincter relaxation
1 Nonrelaxed puborectalis2 Mild intussusception3 Moderate intussesception4 Severe intussesception5 ProlapseR Rectocele
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Investigations
Anal manometry can help assess sphincters
● Longstanding prolapse may damage internal sphincter
EMG for patients with history of severe straining
Pudendal nerve latency studyPudendal nerve terminal motor latency (1.8-
2.2msec)
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Non operative management
Treat constipation● Fiber supplements● Stool softeners
Reduce incarcerated rectal prolapse● Table sugar
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Surgical Treatment
Pertial Rectal prolapse
Improve nutrition, correct constipation Submucosal injection of 10ml of 5% phenol in
almond oil, tetracycline, hypertonic saline Thiresch wiring Goodsall,s operation(excision of prolapsed
mucosa at three different places) Stapled transanal rectal resection surgery(STARR)
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Surgical Treatment
Complete Rectal Prolapse
Perineal procedures● Resection, reefing, and encirclement
Abdominal procedures● Fixation, colon resection or combination of both
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Choosing Type of Surgery/ Perineal
High-risk or eldery patients
Advantages● Low morbidity and pain● Low mortality
Disadvantages● Higher recurrence rate ● Risks coloanal leak
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Choosing Type of Surgery/ Abdominal
Overall better results than perineal approaches
Full mobilization of the rectum, sacral fixation with or without resection
Younger patients
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Choosing Type of Surgery Perineal
● Recurrence (20%) ● Constipation rate unchanged● Persistent incontinence worse rate due to removal of rectal resevoir ● Correction of associated abnormalities (rectoceole, sphincter)● No pelvic dissection – preserves sexual function
Abdominal● Recurrence low (<10%)● ↑ constipation 50% ● Higher M & M esp.
with anastomosis ● Mesh placement – stricture, migration, erosion, infection
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Perineal Procedures
Perineal Proctosigmoidectomy – Altemeir
Mucosal Sleeve Resection - Delorme
Anal Encirclement - Thiersch Wire Technique Perineal suspension/fixation - Wyatt
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Altemeir Procedure
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Delorme Procedure
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Delorme Procedure
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Delorme Procedure
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Thiersch Procedure
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Perineal Procedures - Advocates
Pts suffer mainly from incontinence, constipation and decreased quality of life
Pts are not mainly threatened from recurrence
Surgery should be verified in priority to its effect on post op QOL rather than recurrence
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Abdominal Procedures
Anterior rectopexy or Ripstein procedure ● Anterior wrapping of the rectum and fixation to
sacrum Posterior rectopexy - Wells procedure
● Synthetic mesh ● Sutures alone
Sigmoid colectomy with sutured rectopexy ● Low recurrence ● Low morbidity ● Improves constipation
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Materials used for Mesh Rectopexy
Natural• Fascia Lata
Non-absorbable Synthetic• Nylon• Polypropylene• Marlex• Polyvinyl Alcohol• Polytef
Absorbable Synthetic• Polyglactin• Polyglycolic Acid
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Ripstein Procedure
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Ripstein Procedure
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Ivalon Sponge
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Laparoscopic Rectopexy
Largely replacing open abdominal procedures
Ease of performing rectopexy and colon resection simultaneously with shorter hospital stay
Morbidity and mortality no different than open controls
Recurrence rate lower but not statistically significant
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Laparoscopic Rectopexy
Ideal approach
Laproscopic posterior mesh rectopexy Posterior as well as anterior mobilisation of rectum
done, mesh placed in presacral region and sutured to rectal wall and presacral fascia
Laproscopic sigmoid resection and rectopexy Done in rectal prolapse with constipation, excess
redundant sigmoid colon with kinking
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Complications
Injury to hypogastric nerve causing impotence Bladder dysfunction Bleeding from sacral venous plexus Injury to rectum & colon causing fistula Constipation after rectopexy Recurrence Infection
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Recurrence
Can happen after either perineal or abdominal procedure
● Overall 15% recurrence rate (range is 0-60%)
● Abdominal operations – up to 10% ● Perineal operations – up to 20%
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Recurrence
2 types of recurrence ● Mucosal ● Full thickness
Early recurrence ● Occurs within first year ● Likely the result of a specific technical failure
Non-early(late) recurrence ● Generally occurs 18-24 months
postoperatively
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Recurrence - Etiology
Surgical factors ● Inadequate mobilization of rectum ● Inadequate fixation of the rectum to the sacrum ● Incomplete resection of a redundant rectosigmoid
Nonsurgical factors: ● Vigorous physical activity or childbirth – disruption of
pexy ● Continued constipation with persistent straining
Pathophysiologic factors: ● Disordered defecation ● Intestinal dysmotility
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Any Question???