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Results for “EAR CANAL”

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At least 289 records · Page 16Linked to original sources
PubMed2003

[Trans-external ear canal blow oxygen method].

OBJECTIVE: To study a new method for the treatment of the glue ear and the other out and middle ear diseases. METHOD: 28 ears of the glue ear were treatment with blow oxygen method trans-external ear canal after myringotomy with grommet insertion. The results were compared with that of only tube insertion group of 20 ears in same period. This method were also used to treatment the patients with otitis media after mastoidectomy to compared the effect on dry ear time. RESULT: The therapy time of the blow oxygen group for glue ear were 1.20 +/- 0.42 days, and the control group were 3.50 +/- 0.87 days. The blow oxygen group need only 3.92 +/- 0.77 weeks for dry ear after mastoidectomy. And the control group need 5.82 +/- 2.03 weeks. The results are statistic significant between this two groups. CONCLUSION: The blow oxygen method is a good way for the treatment of glue ear, and can short the time for dry ear after mastoidectomy.

Adolescent↗
PubMedDate not supplied

Auditory brain stem response testing in infants with collapsed ear canals.

Auditory brain stem response (ABR) testing can provide valuable information about hearing in neonates. However, it is subject to a number of interpretive errors, not all of which have yet been resolved. Collapsing ear canals are one of these, as this report documents. We hypothesize that the quite common incidence of canal collapse in this age group, along with other transient conductive defects, may help to explain the 1:10 and 1:20 incidences of significantly abnormal ABRs in neonatal screening.

Brain Stem↗
PubMed1998

A new form of complicated hereditary spastic paraplegia with cataracts, atretic ear canals and hypopigmentation.

A 16-year-old Hispanic boy born of consanguineous parents is described as having a history of cataracts, progressive lower-extremity spasticity and atrophy starting at 4 years of age, atretic ear canals with hearing dysfunction and diffuse patchy cutaneous hypopigmented areas. Clinical examination showed the typical signs of spastic paraplegia with increased tone, hyperreflexia, muscle atrophy and contractures. Sensation, autonomic and cerebellar functions were not disturbed. Neuroimaging studies were normal. Laboratory findings did not support a diagnosis of metabolic disturbance or infectious disease. This is considered a new form of complicated hereditary spastic paraplegia (HSP), transmitted presumably in an autosomal recessive pattern.

Adolescent↗
PubMed2006

Evaluation of a local anesthetic delivery system for the postoperative analgesic management of canine total ear canal ablation--a randomized, controlled, double-blinded study.

OBJECTIVE: To determine if a constant rate local anesthetic delivery system is more effective than continuous intravenous (IV) morphine infusion for postoperative analgesia. ANIMALS: Twenty client-owned dogs undergoing total ear canal ablation. METHODS: Dogs were randomly assigned to the lidocaine group (LID) or the morphine group (MOR). The LID group received a constant rate infusion of lidocaine locally and a continuous IV infusion of saline, while the MOR group received a constant rate infusion of saline locally and a continuous IV infusion of morphine. The primary investigator evaluated each patient and determined a hospital behavior score, anesthesia recovery score, preoperative pain score, and serial postoperative pain and sedation scores over 38 hours. Pain and sedation observations were videotaped and scored by three additional evaluators. Evaluators were blinded to treatment assignments. RESULTS: There were no significant differences in age, weight, hospital behavior scores or anesthesia recovery scores. The primary investigator's pain scores were not significantly different, but sedation scores were significantly lower for the LID group. Sedation and pain scores by the video evaluators were not significantly different between groups. Kappa agreement between observers was poor, but better agreement was noted between sedation scores than pain scores. Drug-related complications were significantly lower in the LID group (n = 0) compared with the MOR group (n = 5). Wound complications were not significantly different (LID = 4, MOR = 4). Intravenous delivery complications occurred in 12 (60%) patients. Local delivery complications occurred in five (25%) dogs. Delivery complications were not significantly different between groups. CONCLUSIONS AND CLINICAL RELEVANCE: Continuous incisional lidocaine delivery was an equipotent and viable method of providing postoperative analgesia compared with IV morphine. Lidocaine delivery resulted in a trend toward lower pain scores, significantly lower sedation scores, and no dogs requiring analgesic rescue. Wound complications secondary to local infusion were minor and self-limiting. Drug-related complications occurred only in the MOR group.

Analgesics, Opioid↗
PubMed1981

Pure-tone sensitivity and ear canal pressure at threshold in children and adults.

Previous investigation have found that young children have poorer pure-tone auditory sensitivity than older children or adults. This study addressed the question of whether these age-related sensitivity differences are attributable to children having middle ear disorders that produce a conductive hearing loss or to differences in ear canal sound pressure at threshold. Results ruled out both of these possible explanations for the age effect.

Acoustic Impedance Tests↗
PubMed1989

Non-invasive electrical stimulation of the ear canal as a communication aid in acquired total deafness.

Some profoundly deafened patients, who cannot be helped by sound amplification, claim to perceive auditory sensations when alternating currents up to 100 Hz are passed through electrodes applied to the skin of the external ear canal. A portable speech processor has been developed which supplies this current. The signal is a balanced square wave, the frequency of which is proportional to the first formant frequency. The amplitude is proportional to the intensity of voiced sounds. In order to fit the narrow frequency and dynamic range of the electrical stimulus, the speech processor produces a downward frequency transposition and strong limitation of the dynamic range. The device has been tested for (1) discrimination of environmental sounds; (2) question/statement discrimination; (3) identification of vowels and consonants in vowel/consonant/vowel context; (4) lip-reading with and without the prosthesis.

Adult↗