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Dive into the research topics where Tadao Kotani is active.

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Featured researches published by Tadao Kotani.


Veterinary Ophthalmology | 2008

Microstructure and glycosaminoglycan ratio of canine cornea after reconstructive transplantation with glycerin-preserved porcine amniotic membranes.

Keiko Tsuzuki; Kazuto Yamashita; Yasuharu Izumisawa; Tadao Kotani

OBJECTIVE Although amniotic membranes of canine, feline, and equine species have some advantages as corneal transplantation material in many canine ocular diseases, their softness, thinness, and low availability can pose problems. As an alternative, the more abundant porcine amniotic membranes may be used. This paper describes the use of glycerin-preserved porcine amniotic membranes in corneal transplantation in eight normal dogs. METHOD A 0.4-mm deep recipient bed in the axial cornea of the OS of all dogs was created using an 8-mm Barron radial vacuum trephine. The recipient bed was then filled with amnion, and the entire cornea was covered with another piece of the glycerin-preserved membrane. The ocular signs evaluated were corneal opacity and corneal vascularization. The dogs were euthanized on days 5, 10, 20, or 40 after surgery, and samples were collected to evaluate corneal thickness, parenchymal cell number, mean collagen fibril diameter, collagen fibril content and the glycosaminoglycan (GAG) ratio. RESULTS Corneal opacity was observed immediately after surgery. Restoration of corneal transparency, regression of corneal vascularization, and visualization of the pupil and iris were noted on day 40. CONCLUSIONS The clinical observations were supported histologically by regained corneal thickness, parenchymal cell number, mean collagen fibril diameter, collagen fibril content, and GAG ratio, suggesting that this technique may be a novel method for the treatment of ocular surface disorders.


Japanese Journal of Veterinary Anesthesia & Surgery | 1989

A longitudinally fitted bite-block with a fixative function of a tracheal tube for dogs and cats made from a disposable syringe.

Yasuharu Izumisawa; Shigeru Hayashi; Tadao Kotani

バイ トブロックは小動物臨床に頻用される咬合 阻止器の一種であるが,吸 入麻酔において挿管し た気管チューブが動物のbitingに よって損傷す るのを防止するためにも重要なものである。その ような トラブルは麻酔の導入時や覚醒時に発生す ることが多いが,特 に導入時におきた場合には, 気管チューブの挿管のし直しが必要となる。その ためには患畜に麻酔薬を再投与することにな り, 結果 として麻酔薬の過量投与により生命を脅かす ことにもな りかねない。また実施者が咬傷を受け ることもある。 現在犬,猫 に使用されているバイ トブロックに はいろいろの工夫が凝 らされてお り,気 管チュー ブ固定部が付いたもの(岸 上式)も あるが,一 般 には木材,塩 ビ管やディスポーザブルシリンジ1) 等を加工して自作したものが多 く用い られ て い る。それ らのほとんどが頭蓋の縦軸すなわち気管 チューブの挿入方向に直交するように左右臼歯に 咬せて装着する横型,い わゆる “さるぐつわ”式 のものである1)。 今回,わ れわれはディスポーザブルシリンジを 用いて,気 管チューブに平行に装着するいわゆる 縦型で,し かも気管チューブを固定する機能 も併 せ持ったバイ トブロックを考案したの で 報 告 す る。


Journal of Veterinary Medical Science | 2000

Cardiovascular effects of medetomidine, detomidine and xylazine in horses.

Kazuto Yamashita; Sae Tsubakishita; Sumiyo Futaoka; Ikue Ueda; Hideya Hamaguchi; Takahiro Seno; Sumie Katoh; Yasuharu Izumisawa; Tadao Kotani; William W. Muir


Journal of Veterinary Medical Science | 1994

Canine Acute Phase Response : Relationship between Serum Cytokine Activity and Acute Phase Protein in Dogs

Kazuto Yamashita; Toru Fujinaga; Toru Miyamoto; Mitsuyoshi Hagio; Yasuharu Izumisawa; Tadao Kotani


Veterinary Ophthalmology | 2001

The effect of third eyelid gland removal on the ocular surface of dogs.

Akihiko Saito; Yasuharu Izumisawa; Kazuto Yamashita; Tadao Kotani


Veterinary Ophthalmology | 2001

Estimation of lacrimal level and testing methods on normal beagles.

Akihiko Saito; Tadao Kotani


Journal of Veterinary Medical Science | 2000

Combination of continuous intravenous infusion using a mixture of guaifenesin-ketamine-medetomidine and sevoflurane anesthesia in horses.

Kazuto Yamashita; M. Satoh; A. Umikawa; A. Tsuda; Y. Yajima; Sae Tsubakishita; Takahiro Seno; Sumie Katoh; Yasuharu Izumisawa; Tadao Kotani


Javma-journal of The American Veterinary Medical Association | 2002

Infusion of guaifenesin, ketamine, and medetomidine in combination with inhalation of sevoflurane versus inhalation of sevoflurane alone for anesthesia of horses

Kazuto Yamashita; William W. Muir; Sae Tsubakishita; Eric Abrahamsen; Phillip Lerch; Yasuharu Izumisawa; Tadao Kotani


Javma-journal of The American Veterinary Medical Association | 2002

Clinical comparison of xylazine and medetomidine for premedication of horses.

Kazuto Yamashita; William W. Muir; Sae Tsubakishita; Eric Abrahamsen; Phillip Lerch; John A. E. Hubbell; Richard M. Bednarski; Roman T. Skarda; Yasuharu Izumisawa; Tadao Kotani


Journal of Veterinary Medical Science | 2005

Electroretinography using contact lens electrode with built-in light source in dogs.

Seiya Maehara; Norihiko Itoh; Yoshiki Itoh; Shinsuke Wakaiki; Keiko Tsuzuki; Takahiro Seno; Tokiko Kushiro; Kazuto Yamashita; Yasuharu Izumisawa; Tadao Kotani

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Takahiro Seno

Kyoto Prefectural University of Medicine

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Keiko Tsuzuki

Rakuno Gakuen University

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Seiya Maehara

Rakuno Gakuen University

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Sumie Katoh

Rakuno Gakuen University

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