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Papers by Peter W Alberti

European Archives of Oto-Rhino-Laryngology, 2009

The Editors and publisher gratefully acknowledge the excellent work performed by our reviewers. T... more The Editors and publisher gratefully acknowledge the excellent work performed by our reviewers. The quality of a journal is definitely depending on the review process. The work laid down by our reviewers is essential for the increasing interest of our journal within ORL-HNS in Europe and outside. We hope that you all are willing to assist us in making European Archives to the leading ORL-HNS journal in Europe. At the same time we wish you all a happy new year. Jan Olofsson Jochen A. Werner

Otolaryngologic Clinics of North America, 1978

The Journal of Laryngology & Otology, 1989

Letters to the Editor Lasers: Importance of power density Dear Sir, I recently read the article-'... more Letters to the Editor Lasers: Importance of power density Dear Sir, I recently read the article-'Excision of Benign Laryngeal Lesions: Comparison of Carbon Dioxide Laser with Conventional Surgery' by Robinson and Weir (1987, 101: 1254-1257). I regret that the authors gave no detail of the laser technique which they used. There is a significant difference in tissue response to laser surgery related both to power density of the radiation and length of the application. Tissue reacts differently to different power densities. As important is the interaction between the direct effect of the laser and of the heat produced by its application. Thus short bursts of laser energy have a tissue vaporizing effect whereas longer durations of exposure also produce heating and thus burns. It would be interesting to know whether Robinson and Weir used short pulses of energy or continuous beam because I believe this is an important determinant of tissue reaction. Perhaps an addendum might be provided by the authors of the mode of application and power density.

International Journal of Pediatric Otorhinolaryngology, 1993

International Journal of Pediatric Otorhinolaryngology, 1989

In an attempt to clarify international epidemiologic trends, a review of the published literature... more In an attempt to clarify international epidemiologic trends, a review of the published literature pertaining to childhood hearing loss is presented. Inconsistencies of methodology and classification, which complicate the interpretation of data and make difficult the quantification of the influence of genuine population differences, are discussed. Selective review of the literature allows certain crude statements to be made regarding childhood hearing loss. In developed countries, serous otitis media is the most common cause of hearing loss in children, affecting up to two thirds of preschool children. In addition, l.O-2.0/1000 children have bilateral SNHL of at least 50 dB. In underdeveloped countries, suppurative middle ear disease is common and is still frequently associated with either an intratemporal or intracranial complication. SNHL appears to occur almost twice as often as in developed countries, with a greater proportion being of infectious etiology. In specific populations, the Inuits, Amerindians and Aboriginals, acute and chronic suppurative otitis media are almost endemic, yet both cholesteatoma and serous otitis media are uncommon. * Some facets of this paper were presented at the November 1987 meeting of the International Association of Physicans in Audiology.

The Journal of Laryngology & Otology, 1987

European Archives of Oto-Rhino-Laryngology, 1994

Ototoxicity is an important clinical problem and accounts for a significant proportion of sensori... more Ototoxicity is an important clinical problem and accounts for a significant proportion of sensorineural hearing loss in some parts of the world. Ototoxicity is predominantly an iatrogenic condition. However, with proper dosing, prudent monitoring of serum levels of ototoxic medications and serial audiometry, ototoxicity can be prevented. A number of the more common ototoxic medications, including aminoglycosides, erythromycin, loop diuretics, salicylates, cisplatin, deferoxamine and ototopical agents, are outlined in this review. Their pharmacology, mechanisms of action and methods of preventing complications are discussed together with animal and clinical studies.

Community Ear and Hearing Health

The history of otoscopy the instruments clinical anatomy of the ear physiology of the ear clinica... more The history of otoscopy the instruments clinical anatomy of the ear physiology of the ear clinical examination of the ear diseases of the pinna diseases of the external auditory canal diseases of the tympanic membrane and middle ear postoperative appearances therapeutic principles hearing tests. Appendices: speech and hearing checklist tympanic membrane photography recommended instruments for examination of the ear.

Otolaryngologic Clinics of North America, 1978

Otolaryngologic Clinics of North America, 1978

Otolaryngologic Clinics of North America, 1976

Otolaryngologic Clinics of North America, 1976

The Laryngoscope, 1986

Twelve experienced hearing aid users with mild to moderate hearing loss used two new, commerciall... more Twelve experienced hearing aid users with mild to moderate hearing loss used two new, commercially available behind-the-ear amplitude compression hearing aids for 1 month each. One aid was a single-channel device; the other was a two-channel aid. All subjects hod used other compression aids for at least 1 year. Performance in real-life situations with the personal aid and the two trial aids was evaluated by the Hearing P erformance Inventory (HPI). Another questionnaire probed subjective preference for the three aids and willingness to purchase each of the trial aids. The major HPJ finding was an equal performance superiority for the two trial aids over the personal aid for half the subjects. The pre feren c~/ purchose q~estlonnaire results indicated that the two-channel aid had some sound quality advantages, but was unacceptable phys•cally. The smgle-channel trial was clearly preferred over the personal and two-channel device.

International Journal of Pediatric Otorhinolaryngology, 1996

Scandinavian audiology. Supplementum, 1984

The ear's complex acoustic impedance locus for frequencies from 200 Hz to 2 kHz was obtained ... more The ear's complex acoustic impedance locus for frequencies from 200 Hz to 2 kHz was obtained for 20 subjects screened for normal hearing. The purpose of the experiment was to observe "kinks" in the total driving point impedance locus of the ear, as measured by acoustic impedance in the ear canal at a depth comparable to that of clinical audiometry. Such impendance bumps or loops are expected to contribute to irregularities seen in high-frequency clinical tympanograms. The transducer probe consisted of two 1/8 inch condenser microphones inserted in the ear canal. The instrumentation used a continuous sinusoidal probe tone sweeping the frequency range in 90 seconds. Analog circuitry performed synchronous detection and filtering and provided the resistance and reactance of the impedance derived from the sound pressure measured in the ear canal. Data were recorded in the form of an impedance locus in the complex plane. These loci demonstrated kinks suggesting middle ear re...

Scandinavian Audiology, 1985

The detection of one-third octave signals superimposed on backgrounds of steady-state and intermi... more The detection of one-third octave signals superimposed on backgrounds of steady-state and intermittent industrial noise of 84 dBA was investigated for observers with normal hearing or moderate to severe noise-induced hearing loss (NIHL). Variables included age, noise exposure history, configuration of the audiogram and the wearing of insert hearing protectors. Detection thresholds were obtained binaurally over headphones using a two- interval forced-choice procedure. For unprotected listening all observers showed a masked threshold of about 80 dBA for a one-third octave band cented at 3.15 kHz. Neither variation in noise exposure history nor configuration of the audiogram were significant factors. Using insert protectors in noise, observers with normal hearing showed an advantage on average of 3 dB. Those with NIHL gave masked detection thresholds greater than 100 dBA. Detection of a one-third octave band centred at 1 kHz by hearing-impaired observers with mild to moderate loss at 1 kHz was similar to that for normal observers. A model of the detection process was developed and evaluated.

European Archives of Oto-Rhino-Laryngology, 2009

The Editors and publisher gratefully acknowledge the excellent work performed by our reviewers. T... more The Editors and publisher gratefully acknowledge the excellent work performed by our reviewers. The quality of a journal is definitely depending on the review process. The work laid down by our reviewers is essential for the increasing interest of our journal within ORL-HNS in Europe and outside. We hope that you all are willing to assist us in making European Archives to the leading ORL-HNS journal in Europe. At the same time we wish you all a happy new year. Jan Olofsson Jochen A. Werner

Otolaryngologic Clinics of North America, 1978

The Journal of Laryngology & Otology, 1989

Letters to the Editor Lasers: Importance of power density Dear Sir, I recently read the article-'... more Letters to the Editor Lasers: Importance of power density Dear Sir, I recently read the article-'Excision of Benign Laryngeal Lesions: Comparison of Carbon Dioxide Laser with Conventional Surgery' by Robinson and Weir (1987, 101: 1254-1257). I regret that the authors gave no detail of the laser technique which they used. There is a significant difference in tissue response to laser surgery related both to power density of the radiation and length of the application. Tissue reacts differently to different power densities. As important is the interaction between the direct effect of the laser and of the heat produced by its application. Thus short bursts of laser energy have a tissue vaporizing effect whereas longer durations of exposure also produce heating and thus burns. It would be interesting to know whether Robinson and Weir used short pulses of energy or continuous beam because I believe this is an important determinant of tissue reaction. Perhaps an addendum might be provided by the authors of the mode of application and power density.

International Journal of Pediatric Otorhinolaryngology, 1993

International Journal of Pediatric Otorhinolaryngology, 1989

In an attempt to clarify international epidemiologic trends, a review of the published literature... more In an attempt to clarify international epidemiologic trends, a review of the published literature pertaining to childhood hearing loss is presented. Inconsistencies of methodology and classification, which complicate the interpretation of data and make difficult the quantification of the influence of genuine population differences, are discussed. Selective review of the literature allows certain crude statements to be made regarding childhood hearing loss. In developed countries, serous otitis media is the most common cause of hearing loss in children, affecting up to two thirds of preschool children. In addition, l.O-2.0/1000 children have bilateral SNHL of at least 50 dB. In underdeveloped countries, suppurative middle ear disease is common and is still frequently associated with either an intratemporal or intracranial complication. SNHL appears to occur almost twice as often as in developed countries, with a greater proportion being of infectious etiology. In specific populations, the Inuits, Amerindians and Aboriginals, acute and chronic suppurative otitis media are almost endemic, yet both cholesteatoma and serous otitis media are uncommon. * Some facets of this paper were presented at the November 1987 meeting of the International Association of Physicans in Audiology.

The Journal of Laryngology & Otology, 1987

European Archives of Oto-Rhino-Laryngology, 1994

Ototoxicity is an important clinical problem and accounts for a significant proportion of sensori... more Ototoxicity is an important clinical problem and accounts for a significant proportion of sensorineural hearing loss in some parts of the world. Ototoxicity is predominantly an iatrogenic condition. However, with proper dosing, prudent monitoring of serum levels of ototoxic medications and serial audiometry, ototoxicity can be prevented. A number of the more common ototoxic medications, including aminoglycosides, erythromycin, loop diuretics, salicylates, cisplatin, deferoxamine and ototopical agents, are outlined in this review. Their pharmacology, mechanisms of action and methods of preventing complications are discussed together with animal and clinical studies.

Community Ear and Hearing Health

The history of otoscopy the instruments clinical anatomy of the ear physiology of the ear clinica... more The history of otoscopy the instruments clinical anatomy of the ear physiology of the ear clinical examination of the ear diseases of the pinna diseases of the external auditory canal diseases of the tympanic membrane and middle ear postoperative appearances therapeutic principles hearing tests. Appendices: speech and hearing checklist tympanic membrane photography recommended instruments for examination of the ear.

Otolaryngologic Clinics of North America, 1978

Otolaryngologic Clinics of North America, 1978

Otolaryngologic Clinics of North America, 1976

Otolaryngologic Clinics of North America, 1976

The Laryngoscope, 1986

Twelve experienced hearing aid users with mild to moderate hearing loss used two new, commerciall... more Twelve experienced hearing aid users with mild to moderate hearing loss used two new, commercially available behind-the-ear amplitude compression hearing aids for 1 month each. One aid was a single-channel device; the other was a two-channel aid. All subjects hod used other compression aids for at least 1 year. Performance in real-life situations with the personal aid and the two trial aids was evaluated by the Hearing P erformance Inventory (HPI). Another questionnaire probed subjective preference for the three aids and willingness to purchase each of the trial aids. The major HPJ finding was an equal performance superiority for the two trial aids over the personal aid for half the subjects. The pre feren c~/ purchose q~estlonnaire results indicated that the two-channel aid had some sound quality advantages, but was unacceptable phys•cally. The smgle-channel trial was clearly preferred over the personal and two-channel device.

International Journal of Pediatric Otorhinolaryngology, 1996

Scandinavian audiology. Supplementum, 1984

The ear's complex acoustic impedance locus for frequencies from 200 Hz to 2 kHz was obtained ... more The ear's complex acoustic impedance locus for frequencies from 200 Hz to 2 kHz was obtained for 20 subjects screened for normal hearing. The purpose of the experiment was to observe "kinks" in the total driving point impedance locus of the ear, as measured by acoustic impedance in the ear canal at a depth comparable to that of clinical audiometry. Such impendance bumps or loops are expected to contribute to irregularities seen in high-frequency clinical tympanograms. The transducer probe consisted of two 1/8 inch condenser microphones inserted in the ear canal. The instrumentation used a continuous sinusoidal probe tone sweeping the frequency range in 90 seconds. Analog circuitry performed synchronous detection and filtering and provided the resistance and reactance of the impedance derived from the sound pressure measured in the ear canal. Data were recorded in the form of an impedance locus in the complex plane. These loci demonstrated kinks suggesting middle ear re...

Scandinavian Audiology, 1985

The detection of one-third octave signals superimposed on backgrounds of steady-state and intermi... more The detection of one-third octave signals superimposed on backgrounds of steady-state and intermittent industrial noise of 84 dBA was investigated for observers with normal hearing or moderate to severe noise-induced hearing loss (NIHL). Variables included age, noise exposure history, configuration of the audiogram and the wearing of insert hearing protectors. Detection thresholds were obtained binaurally over headphones using a two- interval forced-choice procedure. For unprotected listening all observers showed a masked threshold of about 80 dBA for a one-third octave band cented at 3.15 kHz. Neither variation in noise exposure history nor configuration of the audiogram were significant factors. Using insert protectors in noise, observers with normal hearing showed an advantage on average of 3 dB. Those with NIHL gave masked detection thresholds greater than 100 dBA. Detection of a one-third octave band centred at 1 kHz by hearing-impaired observers with mild to moderate loss at 1 kHz was similar to that for normal observers. A model of the detection process was developed and evaluated.