Endoscopy of the Middle Ear Structures

Karhuketo, Tapio S.; Puhakka, H; Laippala, Pékka

doi:10.3109/00016489709124074

Cited by 29 publications

(12 citation statements)

References 9 publications

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“…Karhuketo et al [7] visualized middle ear structures with otoendoscopes of 0°, 30° and 90°a ngles of view both in patients and in cadaver temporal blocks. With the aid of otoendoscopes the medial wall of the tympanic membrane and the whole tympanic cavity and status of the ossicles can be visualized [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Tympanoscope-Assisted Myringoplasty

Karhuketo

Ilomäki

Puhakka

2001

ORL

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Thirty ears of 29 patients with different sized perforation of the tympanic membrane were operated on with the aid of rigid otoendoscopes. The technique has a significant novel feature: endoscopy of the tympanic cavity through a perforation with small tympanoscopes 1.7 mm in diameter with a 0%. The postoperative air-bone gap was less than 10 dB in 90% of the ears. It was concluded that tympanoscope-assisted myringoplasty is a reliable and simple procedure with the benefit of minimal trauma in healthy tissue and that it is a feasible approach for day-case surgery with an ordinary success rate of tympanic membrane closure and hearing results.

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Section: Introductionmentioning

confidence: 99%

Tympanoscope-Assisted Myringoplasty

Karhuketo

Ilomäki

Puhakka

2001

ORL

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“…As the systematic visualization of middle ear structures with rigid endoscopy through the ear canal has been studied [9], we would like to expand this pattern to study middle ear anatomy through the eustachian tube. The possibilities to investigate the middle ear anatomy and diseases via the eustachian tube have scarcely been studied, and we believe that a careful anatomical study would widen our knowledge of the probable benefits of videomicroendoscopy.…”

Section: Introductionmentioning

confidence: 99%

Middle Ear Imaging via the Eustachian Tube with a Superfine Fiberoptic Videomicroendoscope

Karhuketo¹,

Puhakka²

1998

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The aim of this study was to systemically evaluate the visualization of the middle ear structures with a superfine fiberoptic videomicroendoscope introduced via the eustachian tube. With the permission of the Finnish Ministry of Health ten temporal bone blocks were dissected from lately succumbed patients. An Olympus AF-8 (0.8 mm outer diameter) angiofiberscope was used. The AF-8 fiberoptic videomicroendoscope is a straightforward-looking endoscope with a 55° field of view. The endoscope tip was introduced through the eustachian tube into the middle ear and the middle ear structures were visualized and counted. Forty-three anatomical structures were listed and the results presented in a categorized table. Nineteen anatomical objects among 43 were never observed in any temporal bone block. The rest of the anatomical structures were visualized to varying degrees.

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“…Injuries to the neighboring internal carotid artery leading to transtubal bleeding have been reported in the past (20,21). In addition, some authors have described small bony exostoses, which can prevent the endoscope from passing through the bony section of the tube (13,22).…”

Section: Eustachian Tube Endoscopymentioning

confidence: 99%