Deafness Associated with Cleft Palate

Holborow, Christopher

doi:10.1017/s002221510006000x

Cited by 61 publications

(10 citation statements)

References 14 publications

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“…There is a diversity of opinion concerning which muscle is the dilator of the tube. Today, it is generally accepted that the tube is opened either by the tensor muscle alone (Rich, 1920;Holborow, 1962) or by combined action of the tensor and the levator (Toynbee, 1853;Politzer, 1909;McMyn, 1940;Zollner, 1942;Aschan, 1955; I. Honjo et al Proctor, 1973). The final decision as to which is correct has not yet been made, however.…”

Section: Discussionmentioning

confidence: 99%

Experimental Study of the Eustachian Tube Function with Regard to its Related Muscles

Honjo

Okazaki

Kumazawa

1979

Acta Oto-Laryngologica

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Utilizing electromyography and electrical muscle stimulation, the muscle responsible for opening the Eustachian tube was examined im 12 dogs. Different time values for tubal opening and levator activity indicate little contribution of the levator in the functioning of the tube. By relatively low stimulation of the tensor, the tube opened consistently, while the levator failed to produce any dilation of the tube, regardless of the amount of stimulation, in 6 dogs. Thus, it is concluded that the sole muscle responsible for tubal opening is the tensor, while the levator does not participate in the functioning of the tube.

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Section: Discussionmentioning

confidence: 99%

Experimental Study of the Eustachian Tube Function with Regard to its Related Muscles

Honjo

Okazaki

Kumazawa

1979

Acta Oto-Laryngologica

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“…Today there is general agreement on the importance of eustachian tubal function which is the key to aural disease. Malfunction of the tube, whether due to inflammation or to abnormality of structure, is (1) the cause of acute or chronic otitis media, (2) an important cause of secretory otitis media, (3) the cause of deafness in patients with cleft palate, (4) probably a remote cause of cholesteatoma, and (5) it has even been suggested as a cause of Ménière's disease.…”

mentioning

confidence: 99%

Eustachian Tubal Function: Changes in Anatomy and Function With Age and the Relationship of These Changes to Aural Pathology

Holborow¹

1970

Archives of Otolaryngology - Head and Neck Surgery

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“…Holborow was of the opinion that the tensor pala ne muscle is ineffec ve in its role of opening the nasopharyngeal end of the Eustachian tube in causa on of middle ear 16 abnormali es. This defect in mechanism resulted in inadequate ven la on of the middle ear and the resul ng o s media with effusion.…”

Section: Resultsmentioning

confidence: 99%

Ear Findings in Post Surgical Cleft Palate Patients

Thakur¹,

Yadav²,

Bedajit³

et al. 2019

Birat J. Health Sci.

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Introduction: Cleft lip and palate is one of the most common congenital anomaly, which contributes to eustachian tube dysfunction leading to impaired middle ear ventilation and middle ear pathology. It has been stated that the timely repair of cleft palate reduces the incidence of otitis media with effusion. Objective: To describe the ear findings in cleft palate patients who have undergone repair of cleft palate. Methodology: A total of 36 (20 male and 16 female) post cleft repair patients underwent Otoscopy and Tympanometry between January to December 2018. Cases with isolated cleft lip, ears with perforation of tympanic membrane and attico-antral disease were excluded. Results: The age range was from 4 years to 24 years, with a mean of 11.34 years. Maximum patients were of the age group of 10- 20 years (18, 50%) followed by that of 5-10 years range (15, 41.66%). Total number of ears examined were 72. Out of a total of 72 ears, 70 (97.2%) had abnormal otoscopic finding with dull tympanic membrane in 37 (51.39%) ears, retracted in 31 (43.05%) and bulging tympanic membrane in 2 (2.78%) cases. Type B curve was the commonest (36, 50%), followed by Type As (24, 33.3%). Type C curve was found in 11(15.3%) ears. Type A curve was found only in one ear. The duration of post-repair of cleft palate ranged from 6 months to up to 16 years with a mean of 8.52; 11 cases(30.56%) had history of repair of cleft palate of more than 10 years duration.16 cases (44.44%) had that of more than 5 years and 9 cases (25%) had less than 5 years history of duration of repair. When correlation was done statistically, the tympanometry findings and duration of repair had a very low correlation (Table 5). The time period of repair had no significant effect on tympanometric ear findings. Conclusion Abnormal otoscopic findings and tympanometric findings were common in post cleft palate repaired patients. The duration of cleft palate repair had low correlation to the tympanometric ear findings.

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Deafness Associated with Cleft Palate

Cited by 61 publications

References 14 publications

Experimental Study of the Eustachian Tube Function with Regard to its Related Muscles

Experimental Study of the Eustachian Tube Function with Regard to its Related Muscles

Eustachian Tubal Function: Changes in Anatomy and Function With Age and the Relationship of These Changes to Aural Pathology

Ear Findings in Post Surgical Cleft Palate Patients

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