Investigation of scleral thermal injuries caused by ultrasonic pars plana phacoemulsification and aspiration using pig eyes.


Journal

International ophthalmology
ISSN: 1573-2630
Titre abrégé: Int Ophthalmol
Pays: Netherlands
ID NLM: 7904294

Informations de publication

Date de publication:
Sep 2019
Historique:
received: 24 06 2018
accepted: 11 10 2018
pubmed: 26 10 2018
medline: 24 12 2019
entrez: 25 10 2018
Statut: ppublish

Résumé

The purpose of this study was to investigate the thermal injuries caused by ultrasonic pars plana phacoemulsification and aspiration (PPPEA) using pig eyes. Using a 20-gauge (G) vitrectomy system (Accurus Thermography measurements revealed a slight temperature rise around the scleral wound in the open-tip case, yet a marked temperature rise in the closed-tip case. The scleral wound incision produced by the open tip was linear, while that produced by the closed tip was expanded. Histological examination revealed mild degeneration of the sclera around the wound in the open-tip case, yet marked tissue degeneration by thermal injuries in the closed-tip case. Our findings showed that in PPPEA, the temperature of the tip of a 20G vitrectomy system rapidly increases due to the closed-tip technique, thus producing obvious thermal damage to the scleral wound. In order to prevent thermal injuries to the scleral wound during PPPEA, it is important to shorten the time of ultrasonic oscillation during surgery as much as possible while the tip is occluded with nuclear fragments.

Identifiants

pubmed: 30353259
doi: 10.1007/s10792-018-1036-6
pii: 10.1007/s10792-018-1036-6
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

2015-2021

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Auteurs

Takaki Sato (T)

Department of Ophthalmology, Osaka Medical College, 2-7 Daigaku-machi, Takatsuki-City, Osaka, 569-8686, Japan.

Toru Yasuhara (T)

Yasuhara Eye Clinic, Takashima-City, Shiga, Japan.

Masanori Fukumoto (M)

Department of Ophthalmology, Osaka Medical College, 2-7 Daigaku-machi, Takatsuki-City, Osaka, 569-8686, Japan.

Masashi Mimura (M)

Department of Ophthalmology, Osaka Medical College, 2-7 Daigaku-machi, Takatsuki-City, Osaka, 569-8686, Japan.

Takatoshi Kobayashi (T)

Department of Ophthalmology, Osaka Medical College, 2-7 Daigaku-machi, Takatsuki-City, Osaka, 569-8686, Japan.

Teruyo Kida (T)

Department of Ophthalmology, Osaka Medical College, 2-7 Daigaku-machi, Takatsuki-City, Osaka, 569-8686, Japan.

Shota Kojima (S)

Department of Ophthalmology, Osaka Medical College, 2-7 Daigaku-machi, Takatsuki-City, Osaka, 569-8686, Japan.

Hidehiro Oku (H)

Department of Ophthalmology, Osaka Medical College, 2-7 Daigaku-machi, Takatsuki-City, Osaka, 569-8686, Japan.

Tsunehiko Ikeda (T)

Department of Ophthalmology, Osaka Medical College, 2-7 Daigaku-machi, Takatsuki-City, Osaka, 569-8686, Japan. tikeda@poh.osaka-med.ac.jp.

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Classifications MeSH