Pelvic Floor Prolapse: The pelvic floor consists of the muscles and organs of the pelvis, such as the rectum, vagina, bladder. Stretching of the pelvic floor may occur with aging, collagen disorders or after childbirth. When the pelvic floor is stretched, the rectum, vagina, or bladder may protrude through the rectum or vagina, causing a bulge, which can be felt. In addition to a rectocele, patients may have rectal prolapse, a cystocele (prolapse of the bladder) or protrusion of the small bowel. Symptoms generally include difficulty in emptying during urination or defecation, incontinence or pressure in the pelvis.
Pelvic floor dysfunction can be diagnosed by history and physical exam, though it is more accurately graded by imaging. Historically, fluoroscopy with defecography and cystography were used, though modern imaging allows the usage of MRI to complement and sometimes replace fluoroscopic assessment of the disorder, allowing for less radiation exposure and increased patient comfort, though an enema is required the evening before the procedure. Instead of contrast, ultrasound gel is used during the procedure with MRI. Both methods assess the pelvic floor at rest and maximum strain using coronal and sagittal views. When grading individual organ prolapse, the rectum, bladder and uterus are individually assessed, with prolapse of the rectum referred to as a rectocele, bladder prolapse through the anterior vaginal wall a cystocele, and small bowel an enterocele.
If an internal examination is too uncomfortable for you, your doctor or physical therapist may use externally placed electrodes, placed on the perineum (area between the vagina and rectum in women/testicles and rectum in men) and/or sacrum (a triangular bone at the base of your spine) to measure whether you are able to effectively contract and relax your pelvic floor muscles.
Once patients with pelvic floor constipation have these basic tools, they can begin retraining the pelvic floor muscles with biofeedback. Based on the principle of operant conditioning, biofeedback provides auditory and visual feedback to help retrain the pelvic floor and relax the anal sphincter. Biofeedback training is the treatment of choice for medically refractory pelvic floor constipation, with some studies showing improvement in more than 70 percent of patients. Patients also learn to identify internal sensations associated with relaxation and long-term skills and exercises for use at home.
The pelvic floor muscles support various pelvic organs, including the bladder, prostate, rectum, and female reproductive organs. The muscles themselves are also involved in the functioning of the urinary and anal sphincters. When they are functioning normally, you are able to control your bowel and bladder movements by contracting and relaxing these muscles.
Currently there is no surefire way to distinguish PFD from IC, and oftentimes patients have both conditions. Some healthcare providers examine pelvic floor muscles externally and internally to gauge their tightness (tightness indicates PFD). Other IC and PFD experts, like ICA Medical Advisory Board member, Robert Moldwin, MD, perform a lidocaine challenge. By instilling lidocaine into the bladder, Dr. Moldwin determines whether your pain is coming from your bladder, which would indicate IC.
If you have problems with constipation due to hard bowel movements or abdominal bloating and gas pain, then you should consult with your doctor and watch your diet closely. It’s important to drink plenty of water daily (>8 glasses) and eat a healthy diet. Foods that are high in fiber, or fiber supplements, may worsen your bloating symptoms and gas pains. These foods should be avoided if your symptoms get worse.
For internal massage, your PT may insert a finger into the vagina or rectum and massage the muscles and connective tissue directly. A frequently used technique is “Thiele stripping,” in which your therapist finds a trigger point by feeling a twitch in the muscle underneath, exercising it using a circular motion, and then putting pressure on it to help relax it, repeating the process until the muscle starts to release. Internal massage can also help release nerves. Sometimes, anesthetics can be injected into these trigger points. PTs may do this in a few states, but in most states, a doctor or nurse must administer injections.
There are various procedures used to address prolapse. Cystoceles are treated with a surgical procedure known as a Burch colposuspension, with the goal of suspending the prolapsed urethra so that the urethrovesical junction and proximal urethra are replaced in the pelvic cavity. Uteroceles are treated with hysterectomy and uterosacral suspension. With enteroceles, the prolapsed small bowel is elevated into the pelvis cavity and the rectovaginal fascia is reapproximated. Rectoceles, in which the anterior wall of the rectum protrudes into the posterior wall of the vagina, require posterior colporrhaphy.