Wednesday, November 7, 2012

Corrective Pelvic Organ Prolapse Surgery: Apical Prolapse

Apical prolapse is a disorder that affects scores of women; this article will detail a variety of surgical procedures which have been used in the past and are currently used in the treatment of apical prolapse. Based on an article in Current Urology Reports titled Surgery for Pelvic Organ Prolapse: A Historical Perspective by Barbalat and Tunuguntla (2012 13: 256-261) nearly twenty percent of all women will undergo some type of surgical procedure for treatment of apical prolapse which occurs when the uterus, cervix or vaginal floor descends, causing a variety of medical problems. Pelvic organ prolapse is a disorder which would rarely lead to death however the quality of life for the woman who experiences this disorder can be significantly diminished.


How Pelvic Organ Prolapse Affects a Woman’s Life

Sexual activity may be severely curtailed due to pelvic organ prolapse which can cause extremely painful intercourse. According to Web MD, further symptoms of pelvic organ prolapse may include lower backache, a pulling in the groin area, a constant feeling of pelvic pressure or feeling as though something is falling from the vagina, urinary incontinence, vaginal spotting or bleeding and bowel movement problems. Women who are very active may find their symptoms worsen when they engage in jumping or lifting while symptoms are relieved when the patient lies down.

Types of Repair for Apical Prolapse

The Obstetrics and Gynecology Board Review Manual details the incidence of pelvic organ prolapse and the treatments for apical prolapse, stating that “as the average life span of the population increases, problems related to pelvic support defects are seen with increasing frequency ni women. The associated symptoms, although not a cause of mortality, have a significant impact on the quality of a patient’s everyday life.”  When the uterus, cervix or vaginal vault descends, it is known as apical prolapse. The term for pelvic support defects is dependent upon the specific organ being affected. Bladder herniations are known as cystoceles, while protrusions of the rectal area are called rectoceles.

According to Barbalat and Tunuguntla there are several transvaginal techniques used in the repair of apical prolapse: sacrospinous vault suspension, iliococcygeus suspension and uterosacral vault suspension. The sacrospinous ligament is attached to the vaginal apex, either unilaterally or bilaterally in a sacrospinous vault suspension while iliococcygeous suspensions are always performed in a bilateral manner. The uterosacral suspension can be performed either vaginally or abdominally.

Historical Perspective on Uterine Prolapse Treatment

The first vaginal hysterectomy performed as a treatment for uterine prolapse was done by Samuel Choppin in 1861. This particular procedure was later reported in a publication from the Mayo Clinic. The article in Current Urology Reports notes that two Charing Cross Hospital physicians from London contributed considerable knowledge regarding surgical repair techniques for apical defects. These doctors understood for the first time in history that although many surgeons performed a hysterectomy to correct prolapse, there was no guarantee it would accomplish that goal and that prolapse could actually be the result of an abdominal or vaginal hysterectomy.

Vaginal Repair of the Prolapse Using the Sacrospinous Ligament

Barbalat & Tunuguntla describe how using a procedure known as the sacrospinous ligament suspension fixation, vaginal vault prolapse can be repaired in a less invasive operation, however it has been deemed to be only moderately successful. Because there are newer, less invasive vaginal approaches today, the sacrospinous ligament suspension fixation has a limited role in surgery to correct vaginal vault prolapse. Traditionally the ligament is attached to the vaginal vault via sutures on one side however this pulling of the top of the vagina to one side is not particularly secure as the sutures can pull away from the skin of the vagina. The Amreich-Richter procedure uses the sacrospinous ligament in the repair of vaginal prolapse and this procedure is still commonly used in Europe. Other than modifications in the surgical instruments used to perform the surgery – which give surgeons a more predictable outcome - little has changed in this particular surgery.

Accepted Treatment for Apical Prolapse

A surgical procedure used in the treatment of vaginal prolapse which attaches one end of a synthetic mesh product to the top of the vagina and the other end to the upper tail bone is called a sacral colpopexy. This surgery is widely considered the gold standard in treating apical prolapse according to Current Urology Reports. Surgeons in 1958 and 1962 gave a detailed description of using a graft to bridge the gap from the cuff of the vagina to the sacrum. When synthetic mesh was first used in the treatment of apical prolapse it was generally either polyethylene or Gore-Tex. The polypropylene mesh historically has performed better than biologic grafts when used abdominally in a sacral colpopexy surgical procedure.  

Minimally Invasive Abdominal Sacral Colpopexy

In today’s surgical world, robotic-assisted laparoscopy is typically used in abdominal sacrocolpopexy surgeries due to the fact that this particularly surgery is considered very challenging for many surgeons and the new technology can shorten the surgical learning curve. Barbalat & Tunuguntla stated that “laparascopic surgery is sometimes technically challenging and operative times are much longer, especially for those with no formal laparoscopic training.”  Post-operative complications which are generally associated with the procedure have also been found to be minimized when robotic assistance is implemented.

Procedures for Enterocele Repair

An article in PubMed.com states that an “Enterocele is defined as a herniation of the peritoneal sac between the vagina and the rectum. This hernial sac contains either sigmoid colon or small bowel. It is well known that enteroceles are associated with symptoms of pelvic discomfort.” Enteroceles can cause a woman significant amounts of pain and requires an operation to excise it from the rectum and vagina. The wounds left from the excision are closed with sutures then the uterosacral ligaments are shortened and attached to the posterior vaginal wall. The article in Current Urology Reports details four basic procedures for the repair of enteroceles. Bringing the ligaments together in the midline is known as the McCall culdoplasty technique while excising a triangular portion of the peritoneum and excess vaginal vault wall and closing in the middle is called the Torpin technique. The Moschowitz procedure places sutures in a similar fashion as the transvaginal enterocele repair and is performed abdominally. Finally, the Halban enterocele repair sutures the peritoneum to the posterior vaginal wall via rows of sutures.

The Colpocleisis Procedure

An article in Women’s Health Specialists details a procedure known as the colpocleisis for the treatment of apical prolapse stating “Colpocleisis is advantageous for a woman who would otherwise be unable to tolerate a long, extensive surgical procedure. The surgery is easy to perform, takes a relatively short amount of time, requires only regional or local anesthesia, and
has a fairly quick recovery time.”  Barbalat and Tunuguntla state that “Apical prolapse also has been managed with obliterative procedures in poor-risk patients, in women with symptoms of POP that do not desire the presence of a vagina or those who have failed multiple prior prolapse repairs.”

This particular procedure is considered most effective among women who are older and are not as adamant about preserving their vagina in order to engage in sexual activity. The surgical procedure offers few risks and can address urinary incontinence during the same surgery through the use of a synthetic sling. Patient satisfaction for this surgery is high—as much as 90%. A partial colpocleisis was actually performed in 1877 which implemented a closure of the front and back vaginal walls, leaving the uterus in place. Over the years modifications were made to the procedure to reduce both the recurrence of prolapse as well as reducing incontinence. This article discussed the various procedures for apical prolapse repair.

 

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