THE DIGESTIVE SYSTEM
The digestive system has both upper and lower digestive tracts. The upper digestive tract breaks down the food that you eat into the nutrients that fuel your body. The digestion of waste begins in the lower tract small intestine and large intestine. In a wave-like action called peristalsis, the waste is moved through the large intestine where water is removed, resulting in the left-over stool. A bowel movement (BM) is normally initiated when enough stool collects in the rectum. The urge to empty the bowels intensifies as the rectum fills with stool. When going to the bathroom, the brain then signals the release of the anal sphincter muscle, and muscle action pushes the stool out through the anus. The frequency between each BM normally differs greatly among people. Some people will normally have 1 to 3 movements per day. Normal frequency for some people can be as few as 3 times a week. Normal consistency of the stool can also vary. Although a normal BM should be easy to pass, some people may have harder or softer stools than others.
FOLLOWING SPINAL CORD INJURY
Following spinal cord injury (SCI), messages from the body are not able to reach the brain like before the injury. This usually means a loss of sensation that the bowels are full and the “urge” to empty the bowels is no longer there, and loss of voluntary sphincter muscle control. When normal bowel function is lost due to an injury to the nervous system (spinal nerves), bowel function is commonly referred to as a neurogenic bowel.
In general, two types of neurogenic bowel can occur after SCI. The type depends on the level of injury. A reflex bowel is common with injuries above T-12 (Upper Motor Neuron injuries). With a reflex bowel, the anal sphincter remains closed. However, a reflex BM can still occur at any time and without warning when the stool fills the rectum. With injuries below T-12 (Lower Motor Neuron injuries), there is usually a loss of reflex response, or flaccid bowel. Although there is reduced peristalsis and a loss of anal sphincter tightness with a flaccid bowel, the bowel does not usually empty itself. However, the loose sphincter means mucus and fluid can seep around stool and leak out the anus.
Stool absolutely must be removed regardless of the level of injury, and thus a bowel program based on the individual’s bowel type will be necessary.
A REFLEX BOWEL PROGRAM may be done daily, every other day, or even as few as 3 times a week. There are 8 general steps in a reflex bowel program:
Step 1 Wash hands thoroughly.
Step 2 Prepare your supplies. You will need:
- gloves (powder and latex free are preferable)
- lubricant (water-based or anesthetic only)
- toilet paper and/or blue under pads (Chux)
- stimulant (Enemeez® mini-enemas or Magic Bullet Suppositories® are generally accepted for regular use by individuals with SCI)
- assistive devices (a suppository inserter, finger extension, and digital stimulator)
Step 3 Get into a comfortable position. When possible, it is best if you sit on a toilet or commode chair so that gravity can help move the stool down and out. If you cannot sit, lay on your bed with your body turned on the left side. Use under pads (Chux). Do not use a bed pan because it may damage your skin.
Step 4 Manual stool removal. The lining of the rectum is delicate. Insert a gloved, lubricated finger into the rectum and gently hook your finger around any reachable stool and remove it from the rectum.
Step 5 Insert a rectal stimulant. Methods for insertion include using a gloved hand to squirt the lubricated mini-enema as high as you can into the rectum. Likewise, place the lubricated suppository high into the rectum, leaving the suppository touching the wall of the rectum.
Step 6 Digital rectal stimulation. Sometimes referred to as “Digi-stim,” this process promotes peristalsis and the relaxation of the sphincter muscle. A good time to begin digital rectal stimulation is once the stimulant starts to act. Mini-enemas will probably start to act within 15 to 20 minutes after the insertion. The suppository will probably start to act within 20 to 30 minutes after insertion. The passing of gas or stool may also indicate a readiness for digital stimulation. Insert a gloved, lubricated finger into the rectum and gently start moving your finger in a circular pattern for 20 to 30 seconds, keeping the finger in contact with the rectal wall. Repeat the process every 5 to10 minutes until the BM is complete.
Step 7 The individual must be able to recognize when the BM is over. Indications that the BM has been completed include determining that there is no more stool after 2 consecutive digital simulations; mucus coming out without any stool; or if the rectum is closed tightly around the finger.
Step 8 Clean up. Wash and dry the anal area.
A FLACCID BOWEL PROGRAM is usually done one or more times daily. There are 6 general steps in a reflex bowel program:
Step 1 Wash hands thoroughly.
Step 2 Prepare your supplies. You will need:
- Gloves (powder and latex free are preferable)
- Lubricant water-based only)
- Toilet paper
Step 3 Get into position. Most individuals with a flaccid bowel are able to sit on a toilet or commode chair.
Step 4 Manual stool removal. Stimulants are not usually effective for a flaccid bowel, so manual removal of stool is done (as with reflex bowel) about every 5 minutes until the BM is over. Between each 5 minute removal time, you can promote stool movement by utilizing digital rectal stimulation (as with reflex bowel); firmly rubbing your abdomen in a clockwise direction with your hand; and movement of the body. The most commonly utilized body actions are leaning forward and side-to-side; body push-ups to reposition and vary pressure areas; tightening and releasing of abdominal muscles; “bearing down” to force stool out (known as a valsalva maneuver and should be avoided if you have a heart condition); and inhaling air deeply followed by forcing air out by increasing abdominal pressure.
Step 5 Know when the BM is over. The BM is probably over when you have no stool results after 2 manual removals, which is about 10 minutes without results.
Step 6 Clean up. Wash and dry the anal area.
Bowel management is essentially the ability to maintain control over bowel movements. Bowel control includes the ability to retrain the bowel to empty at a planned, regularly scheduled time; avoid accidental, unplanned BMs; avoid leakage between each bowel program; maximize stool removal during each bowel program; maintain normal stool consistency; finish each bowel program within a reasonable time (within 60 minutes); feel secure to fully participate in all desired activities of daily living; and keep your body’s digestive system healthy. A properly designed bowel program is only 1 element of bowel management. Other essential elements to a successful bowel management program include:
- Schedule: Before the SCI, an individual’s body was probably trained to have bowel movements that were fairly predictable. For example, you may have had a BM each morning at roughly the same time of day or every other day. Following injury, the individual must essentially retrain the body to respond with a BM only when stimulated during your bowel program. Individuals will need to select a time of day when having a BM best fits your lifestyle. If it is at all possible, individuals should maintain the same schedule that was implemented at the beginning of rehabilitation. Individuals should attempt to follow this schedule until they are accident-free between multiple bowel programs. Once your body has adjusted and is well trained to respond with a BM only when stimulated, you may then adjust your bowel program schedule if needed. For example, you may prefer to change your bowel program from morning to night or choose to perform a bowel program every other day instead of every day. Whether you change your schedule or not, you should be able to eventually feel fairly secure in maintaining a regular, predictable bowel program.
- Nutrition: When and what you eat greatly influences your bowel program. For example, eating a meal, high fiber snack, or drinking a warm liquid (such as hot tea, hot apple cider, etc.) initiates peristalsis in a reflex bowel. If you eat or drink something warm about 30 minutes prior to starting your bowel program, you will likely have more effective results. Your fiber intake helps maintain the health of your entire digestive system. Although some individuals take a fiber supplement, vegetables, fruits and whole grain foods are the recommended sources for getting your daily fiber intake. You need about 25 to 35 grams(g) of fiber each day. However, you need to gradually make changes to your fiber intake because sudden increases in fiber intake can cause diarrhea and decreases in fiber intake can cause constipation. Some foods, especially eaten in excess, are more likely than others to cause common bowel problems. For example, dairy products, white potatoes, white bread and bananas can contribute to constipation. Fruits, caffeine and spicy foods can cause diarrhea. Beans, corn, onions, peppers, radishes, cauliflower, sauerkraut, turnips, cucumbers, and apples can cause excessive gas buildup.
- Water: Water should be your beverage of choice for many reasons. A big reason is that water helps regulate your body’s digestive system, keeps your stool from getting too hard, and prevents constipation and impaction. Although fresh vegetables and fruits are good sources for water as well as fiber, you still need to drink the proper amount of water. Generally, your bladder management method will determine how much water you typically need daily.
- Physical Activity: Engaging in physical activity promotes easier passage of food through the digestive system.
- Medications: Many over-the-counter and prescription medications can impact your bowel program. These include bowel-related medications that you take by mouth (orally) or by suppository, and some medications that you take for other reasons can influence your bowel function. Therefore, you should always talk with your health care provider before taking any medication. Constipation and diarrhea are common side-effects of medications. For example, codeine, ditropan, probanthine, and aluminum-based antacids can cause constipation. Magnesium-based antacids can cause diarrhea. Stool softener and laxative use are common among individuals with SCI. Although Colace® (stool softener) and Peri-Colace® (stool softener with added laxative) are mild and may be well tolerated by most people, too much or too little dosage may result in diarrhea or constipation.
- Regularity: Every individual with SCI is unique, but you will likely agree that an unplanned BM is one of the most embarrassing things that can happen. Your best chance to avoid accidents is with consistent bowel management and established bowel program. For example, you should maintain your routine even if your normal routines get interrupted by travel, sickness or the like. If you have an unplanned BM, you still need to continue your bowel program when it is scheduled. Individuals should consult with their doctor when adjustments to the bowel program are necessary.
A colostomy is a surgically-created hole leading from the large intestine to the outside of the abdomen. Typically, a bag is placed over the abdomen hole to collect the stool before it gets to the rectum. Do not necessarily rule out a colostomy on first thought. This procedure is becoming more popular among individuals with SCI, especially people with constant bowel problems. In such cases, a colostomy can greatly improve quality of life. To determine whether a colostomy is a helpful treatment option for a given individual, begin by researching colostomy use and how it works as a bowel program option. If it is an option of interest, attempt to speak with someone with SCI who has one. Then, talk to a physiatrist (doctor in rehabilitation medicine) to discuss whether a colostomy is a good option for the particular individual.