Bronchoscopy and Esophagoscopy / A Manual of Peroral Endoscopy and Laryngeal Surgery

by Chevalier Jackson

CHAPTER XVIII—FOREIGN BODIES IN THE ESOPHAGUS

Etiology.—The lodgement of foreign bodies in the esophagus is
influenced by:
1. The shape of the foreign body (disc-shaped, pointed, irregular).
2. Resiliency of the object (safety pins).
3. The size of the foreign body.
4. Narrowing of the esophagus, spasmodic or organic, normal, or
pathologic.
5. Paralysis of the normal esophageal propulsory mechanism.

The lodgement of a bolus of ordinary food in the esophagus is strongly suggestive of a preexisting narrowing of the lumen of either a spasmodic or organic nature; a large bolus of food, poorly masticated and hurriedly swallowed, may, however, become impacted in a perfectly normal esophagus.

Carelessness is the cause of over 80 per cent of the foreign bodies in the esophagus (see Bibliography, 29).

Site of Lodgement.—Almost all foreign bodies are arrested in the cervical esophagus at the level of the superior aperture of the thorax. A physiologic narrowing is present at this level, produced in part by muscular contraction, and mainly by the crowding of the adjacent viscera into the fixed and narrow upper thoracic aperture. If dislodged from this position the foreign body usually passes downward to be arrested at the next narrowing or to pass into the stomach. The esophagoscopist who encounters the difficulty of introduction at the cricopharyngeal fold expects to find the foreign body above the fold. Such, however, is almost never the case. The cricopharyngeus muscle functionates in starting the foreign body downward as if it were food; but the narrowing at the upper thoracic aperture arrests it because the esophageal peristaltic musculature is feeble as compared to the powerful inferior constrictor.

Symptoms.—Dysphagia is the most frequent complaint in cases of esophageally lodged foreign bodies. A very small object may excite sufficient spasm to cause aphagia, while a relatively large foreign body may be tolerated, after a time, so that the swallowing function may seem normal. Intermittent dysphagia suggests the tilting or shifting of a foreign body in a valve-like fashion; but may be due to occlusion of the by-passages by food arrested by the foreign body. Dyspnea may be present if the foreign body is large enough to compress the trachea. Cough may be excited by reflex irritation, overflow of secretions into the larynx, or by perforation of the posterior tracheal wall, traumatic or ulcerative, allowing leakage of food or secretion into the trachea. (See Chapter XII for discussion of symptomatology and diagnosis.)

Prognosis.—A foreign body lodged in the esophagus may prove quickly fatal from hemorrhage due to perforation of a large vessel; from asphyxia by pressure on the trachea; or from perforation and septic mediastinitis. Slower fatalities may result from suppuration extending to the trachea or bronchi with consequent edema and asphyxia. Sooner or later, if not removed, the foreign body causes death. It may be tolerated for a long period of time, causing abscess, cervical cellulitis, fistulous tracts, and ultimately extreme stenosis from cicatricial contraction. Perichondritis of the laryngeal or tracheal cartilages may follow, and result in laryngeal stenosis requiring tracheotomy. The damage produced by the foreign body is often much less than that caused by blind and ill-advised attempts at removal. If the foreign body becomes dislodged and moves downward, the danger of intestinal perforation is encountered. The prognosis, therefore, must be guarded so long as the intruder remains in the body.

Treatment.—It is a mistake to try to force a foreign body into the stomach with the stomach tube or bougie. Sounding the esophagus with bougies to determine the level of the obstruction, or to palpate the nature of the foreign body, is unnecessary and dangerous. Esophagoscopy should not be done without a previous roentgenographic and fluoroscopic examination of the chest and esophagus, except for urgent reasons. The level of the stenosis, and usually the nature of the foreign body, can thus be decided. Blind instrumentation is dangerous, and in view of the safety and success of esophagoscopy, reprehensible.

If for any reason removal should be delayed, bismuth sub-nitrate, gramme 0.6, should be given dry on the tongue every four hours. It will adhere to the denuded surfaces. The addition of calomel, gramme 0.003, for a few doses will increase the antiseptic action. Should swallowing be painful, gramme 0.2 of orthoform or anesthesin will be helpful. Emetics are inefficient and dangerous. Holding the patient up by the heels is rarely, if ever, successful if the foreign body is in the esophagus. In the reported cases the intruder was probably in the pharynx.

External esophagotomy for the removal of foreign bodies is unjustifiable until esophagoscopy has failed in the hands of at least two skillful esophagoscopists. It has been the observation in the Bronchoscopic Clinic that every foreign body that has gone down through the mouth into the esophagus can be brought back the same way, unless it has already perforated the esophageal wall, in which event it is no longer a case of foreign body in the esophagus. The mortality of external esophagotomy for foreign bodies is from twenty to forty-two per cent, while that of esophagoscopy is less than two per cent, if the foreign body has not already set up a serious complication before the esophagoscopy. Furthermore, external esophagotomy can be successful only with objects lodged in the cervical esophagus and, moreover, it has happened that after the esophagus has been opened, the foreign body could not be found because of dislodgement and passage downward during the relaxation of the general anesthesia. Should this occur during esophagoscopy, the foreign body can be followed with the esophagoscope, and even if it is not overtaken and removed, no risk has been incurred.

Esophagoscopy is the one method of removal worthy of serious consideration. Should it repeatedly fail in the hands of two skillful endoscopists, which will be very rarely, if ever, then external operation is to be considered in cervically lodged foreign bodies.