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Biomedical subjects

R Borkenhagen

Publications and source records attributed to R Borkenhagen.

11 recordsLinked to original sources
PubMed1983

Comparison of two voice prostheses for vocal restoration following laryngectomy.

Two prostheses for voice rehabilitation after laryngectomy were compared. A comparison was also made to evaluate the interchangeability of the two prostheses (Panje button and Blom-Singer duckbill) when only a single tracheoesophageal fistula was made. Fourteen laryngectomized patients were included in the study. Factors taken into account were voice quality, intelligibility, surgical technique, ease of insertion of the prostheses, patient preference, and care of each device. It was concluded that the Panje button in a Blom-Singer fistula offered better results when voice quality was compared. Patient selectivity is a factor important to the high success rate reported for voice restoration when either prosthesis is used. The development and success of these new prostheses is highlighted in a brief review of the literature.

Consumer Behavior↗
PubMed1983

Warthin's tumor.

Warthin's tumor is a benign neoplasm that most often arises in the parotid gland. The lesion is often clinically silent, but various radiographic studies are useful in establishing the diagnosis. Surgical resection generally results in a complete cure. The diagnosis of Warthin's tumor should be considered in any patient who presents with a mass lesion in the area of the parotid gland.

Adenolymphoma↗
PubMed1982

Validation of a vocal cord lateralization procedure.

Various corrective procedures have been described to move the midline paralyzed vocal cord laterally in order to create a more desirable air exchange position. They have been complicated and often unsatisfactory, even for the skilled operator. A newer, direct approach by direct laryngoscopy, including incision and debulking of the paralyzed vocal process, as first reported by Fernando Kirchner, M.D. is described. The direct laryngoscopic method permits easier accessibility for this problem. In three involved surgical cases discussed, the air exchange in each was improved. The patients have continued to have good functional voices and no longer require tracheostomy.

Aged↗
PubMed1981

Glycerine injection and crystal formation in the larynx: a negative study.

Glycerine as a vehicle may be injected alone or with Teflon to reposition a lateral lying paralyzed vocal cord. During the study of a particular patient, crystal formation was observed in laryngeal tissues injected with glycerine. It was hypothesized that glycerine metabolized to oxalic acid crystals via the glyoxylic acid pathway. To confirm this proposition, the gluteus muscle of guinea pigs was injected with glycerine, and at weekly intervals submitted for ordinary and polarized light microscopic examination. The formation of crystals after glycerine injection was not found in the guinea pig. Similarly, no foreign material or crystals were found after centrifuging the stored glycerine.

Animals↗
PubMed1980

Rhinorrhea associated with intracranial cholesteatomas and an "empty sella.".

Three related disorders in the same patient, namely bilateral primary intracranial cholesteatomas, an "empty sella" syndrome, and a cerebrospinal rhinorrhea are reported. No previous report of bilateral symmetrical cholesteatomas has been made, though single intracranial cholesteatomas have frequently been recorded in medical literature. The "empty sella" syndrome is generally considered to be from a herniation of the subarachnoid into the sella through a deficient diaphragma sella, and was first defined by Ommaya in 1968. Non-traumatic (spontaneous) rhinorrhea remains an uncommon disease initially described in 1826. Experience of the individual otolaryngologist is limited in this region because of infrequent occurrence and because definitive treatment is directed to other specialties. On the other hand, the ear, nose and throat physician may be the first to interpret a drainage from the nose. With this in mind, the etiologic, clinical and management factors in the present case are discussed.

Brain Diseases↗
PubMed1979

Medullary carcinoma of the thyroid as a laryngeal problem.

A neuroendocrine secreting tumor, initially presenting as a laryngeal problem, is reported. Subglottic biopsy, first interpreted as paraganglioma, was finally diagnosed as medullary carcinoma of the thyroid. The complex testing required to arrive at an accurate diagnosis of this uncommon thyroid malignancy is discussed. The sparse occurrence of the neoplasm in the laryngologic field, as well as the necessity for differentiating it from other neuroendocrine tumors, bear consideration.

Calcitonin↗