What Is Dysphagia? D ysphagia is a functional upper digestive disorder characterized by difficulty in swallowing or food getting stuck and swallowing that takes longer than 10 seconds to complete. Q: What determines the symptoms?…
What Is Plummer-Vinson Syndrome Affecting the Esophagus?P lummer-Vinson syndrome is a manifestation of severe, long-term, iron deficiency anemia that is characterized by post-cricoid esophageal webs and dysphagia.
Q: What are esophageal webs?
A: Esophageal webs are one or more thin horizontal membranes consisting of squamous epithelium (cells that line the surface of the esophagus) and submucosa. They usually protrude from the anterior (front) wall, extending laterally across the inside esophagus but not to the posterior (rear) wall, which means that they rarely encircle the lumen.1
Dysphagia, or difficulty swallowing, from these webs is commonly painless and intermittent or progressive and may cause obstruction.
Webs can be detected by barium swallow X-ray, but the best way for demonstration is videofluoroscopy and by upper gastrointestinal endoscopy. They appear smooth, thin, and gray with eccentric or central lumen space. The webs typically occur in the upper part of the esophagus and may be missed and accidentally ruptured unless the endoscope is introduced under direct visualization.1
Iron deficiency is believed to decrease the contraction amplitude or force of the esophageal muscle resulting in motility impairment. Slower transit times have been recorded at the proximal and middle parts of the esophagus of Plummer-Vinson syndrome patients compared to healthy volunteers.2 Transit time is how fast ingested food and fluids travel through the esophagus.
Gude et al, report that iron replacement does not necessarily reverse the dysphagia in all the cases of Plummer-Vinson syndrome and that close monitoring of the web is mandated to watch for malignant change. In fact, 3 to 15 per cent of the patients with Plummer-Vinson syndrome, mostly women between 15 and 50 years of age, have been reported to develop esophageal or pharyngeal cancer.2
H eartburn is a functional upper digestive symptom of esophagitis that is characterized by a burning sensation behind the breastbone.
Q: Why does esophagitis cause heartburn?
A: Esophagitis is inflammation of the mucosal lining of the esophagus. The most common cause of esophagitis is the re-entering of stomach contents into the esophagus because the lower esophageal sphincter (LES) does not close tightly after food or fluids enter the stomach from the esophagus and/or the LES does not remain tightly closed.
The LES is located at the junction of the esophagus and the stomach. It functions like a circular band to tighten after food is ingested in order to prevent its going back up the esophagus when powerful stomach muscles churn ingested food.
Damage to the lining of the esophagus (esophagitis) results upon contact with hydrochloric acid and pepsin in gastric juice. Hydrochloric acid, produced by the stomach to dissolve food, inflames the esophagus, which is the opposite, or alkaline. Pepsin, produced by the stomach to dissolve protein in swallowed food, acts on the inflamed esophagus to break down the protein in its sore wall.
Heartburn can be caused by other disorders such as low stomach acid, obesity, and smoking. Relaxation of the LES can also result from dietary items such as chocolate, mint, caffeine, and alcoholic drinks.
Who is Affected in the General Population? Heartburn affects an estimated 42% of the US population.1
E sophageal motor abnormalities are disorders of the esophagus involving altered muscular motility characterized by impaired esophageal peristalsis, or the progressive wave-like movement that occurs automatically when food or fluids are swallowed.
Q: What is altered motility?
A: Altered motility describes the lack of coordinated muscular movements or weak muscular movement needed to rapidly propel food and fluids through the highly muscular esophagus from the throat to the stomach.
The esophagus is a tube-like organ that begins at the cricoid cartilage (Adam’s apple) as a continuation of the pharynx and ends at the lower esophageal sphincter (LES).
The LES is a very strong, circular muscle surrounding the junction of the esophagus and stomach. The LES opens to allow swallowed food and liquids to enter the stomach and closes to prevent their travelling back into the esophagus.
Failure of the lower esophageal sphincter to remain tightly closed after swallowing allows stomach contents to reenter the esophagus giving symptoms of heartburn.
On the other hand, failure of the LES to relax traps the contents of the esophagus so that it cannot quickly empty into the stomach as it should. Because the esophagus is not designed to hold food/fluids, the abnormal expansion results in pain, anxiety and possibly vomiting and choking. If the contents are aspirated into the windpipe upon choking, there will be coughing with attempts to clear it.
P ost-cricoid carcinoma is a rare malignancy arising in the hypopharynx.
Q: What is the hypopharynx?
A: The hypopharynx is the lower portion of the pharynx that opens into the larynx. It is comprised of the postcricoid region, pyriform sinus, and posterior hypopharyngeal wall.
Tumors rarely appear in the posterior pharyngeal wall or postcricoid region without also involving the pyriform sinus. The lack of anatomic barriers between these sites and a propensity for these tumors to develop in the pyriform sinus and spread outward account for this phenomenon.
Overall prognosis for these tumors is poor. Because of the rich organic lymphatic and vascular networks, aggressive growth and early cervical metastases (compared with cancers at other head and neck sites) characterize these cancers.
A study investigating the clinical course of 21 patients with post-cricoid carcinoma found the 5-year cause-specific survival rate was 52%. All the patients who eventually died did so within 3 years of the treatment. Seven patients had distant metastases, representing a higher frequency as compared with that of patients with recurrence of the primary focus and cervical lymph node metastasis. All of these patients who had been treated by surgery died of the cancer.1
Unfortunately, hypopharyngeal cancers are discovered at a later stage than other head and neck cancers. The delay in diagnosis from symptom onset averages 10 months.2
What Is Laryngospasm?L aryngospasm is an acute disorder of the larynx that is characterized by life-threatening spasms of the muscles of the larynx located in the throat.
Laryngospasm is a rare feature of hypocalcemia (low blood calcium level) characterized by severe alteration in nerve conduction and muscle contraction.
What Is Beefy Red, Smooth, Burning Tongue?B eefy, red, smooth, burning tongue is an inflammatory alteration in tongue tissue characteristic of vitamin B12 deficiency.
Inflammation makes the tongue red and sore which, when untreated, progresses to atrophied papillae (shrunken taste buds) that makes the tongue smooth.
Q: Why does vitamin B12 alter the tongue?
A: Vitamin B12 is essential for the metabolism of all cells, especially for those of the digestive tract of which the tongue is an organ.1
These easily seen changes to tongue tissue are an important diagnostic feature of deficient vitamin B12, which causes other devastating unseen damage, because the discomfort generally causes the individual to seek medical care.
B leeding and/or swollen gums is an inflammatory disorder characterized by changes in gum integrity that may result in tooth loss.
Sponginess of the gum (swelling) indicates inflammation, called gingivitis.
Q: What causes gingivitis?
A: Gingivitis that is caused by inadequate dental hygiene shows as pockets of swollen gum between or along the base of teeth where sticky plaque was allowed to build up. Plaque holds bacteria that inflames the gums where it occurs.
Gingivitis that is caused by vitamin C deficiency, pregnancy, certain drugs such as the anti-epileptic drug phenytoin, and leukemia affects the whole gum irrespective of mouth care.
H ypocupremia, or low plasma copper, means the level of copper is too low to meet metabolic needs of the body for copper and is characterized by these many features:
Untreated, copper deficiency can advance to brain degeneration. Failure to make normal blood cells can result in death.
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What Are Dental Enamel Defects?D ental enamel defects (DED) comprise a variety of abnormalities in the dental enamel of the second or permanent teeth and of primary or baby teeth.
Teeth may appear with pits, thin or missing enamel, non-white enamel (yellow, orange, or gray colored teeth), and demarcated opacities (very white spots) even if teeth are white.
Q: What is enamel?
A: Dental enamel is the shiny, hard, white, dense, inorganic substance covering the crowns of the teeth. The crown is the tooth portion above the gum. Under the enamel is hard dentin which surround the living pulp. In teeth with missing enamel, the areas with exposed dentin appear dull and tan colored.