Dataset Information

Electroretinograms before and after extraction of large intraocular iron foreign body.

ABSTRACT:

Purpose

We present our findings in a case with an intraocular foreign body in which the electroretinographic (ERG) findings were useful.

Observations

A 37-year-old man was injured by an iron fragment that penetrated into his left eye through the cornea. His visual acuity was counting fingers, and a traumatic cataract prevented an examination of the fundus. B-mode ultrasonography showed a stick-like foreign body of approximately 14 mm in length in the eye. Preoperative ERGs with a contact lens electrode showed reduced responses with many blinking artifacts. Lensectomy and pars plana vitrectomy were performed and a fragment of a wire brush was seen embedded in the superior nasal retina which was removed. The decimal visual acuity improved to 1.2 two weeks later. The postoperative ERG performed with a skin electrode showed reduced responses in the injured eye.

Conclusions and importance

We recommend that the physiology of the retina be assessed by recording ERGs with a skin-type electrode as soon as possible after a traumatic injury to the eye.

SUBMITTER: Kumagai T

PROVIDER: S-EPMC6525325 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature

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Publications

Electroretinograms before and after extraction of large intraocular iron foreign body.

Kumagai Tomoyuki T Matsumoto Celso Soiti CS Kimura Itaru I Shinoda Kei K

American journal of ophthalmology case reports 20190509

<h4>Purpose</h4>We present our findings in a case with an intraocular foreign body in which the electroretinographic (ERG) findings were useful.<h4>Observations</h4>A 37-year-old man was injured by an iron fragment that penetrated into his left eye through the cornea. His visual acuity was counting fingers, and a traumatic cataract prevented an examination of the fundus. B-mode ultrasonography showed a stick-like foreign body of approximately 14 mm in length in the eye. Preoperative ERGs with a ...[more]

PMID: 31193312

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Project description:The clinical manifestations of foreign body (FB) aspiration can range from an asymptomatic presentation to a life-threatening emergency. Patients may present with acute onset cough, chest pain, breathlessness or sub-acutely with unexplained hemoptysis, non-resolving pneumonia and at times, as an incidental finding on imaging. Patients with iatrogenic FB such as an aspirated broken tooth during difficult intubation or a broken instrument are more common scenarios in the intensive care unit (ICU). Patients with post-obstructive pneumonia with or without sepsis, or variable degree of hemoptysis often require ICU level of care and bronchoscopic interventions. Rigid bronchoscopy has traditionally been the modality of choice; however, with the innovation in instrumentation and wider availability of flexible bronchoscopes, most of the FB removal is now successfully performed using flexible bronchoscopy. Proceduralists choose instruments in accordance with their training and expertise. We describe the use of most common instruments including forceps, balloon catheters, and baskets. Role of cryoprobe and LASER in FB removal is reviewed as well. In general, larger working channel bronchoscopes are preferred; however, smaller working channel bronchoscopes may be used in situations when the patients are intubated with a smaller diameter endotracheal or tracheostomy tubes. Large size FB are removed en bloc with the grasping tool, bronchoscope, and endotracheal or tracheostomy tube, requiring preparation to safely re-establish the airway. After FB removal, bronchoscopy is re-performed to identify any residual FB, assess any injury to the airway, suction post-obstructive secretions or pus, control any active bleeding and remove granulation tissue that may be obstructing the airway. Additional interventions like balloon dilatation may be required to dislodge an impacted FB or to maintain patency of bronchial lumen. If bronchoscopic methods fail, surgery may be required for retrieval of FB in symptomatic patients or to resect suppurative or necrotizing lung process. Multidisciplinary approach involving intensivists, surgeons, and anesthesiologists is the key to optimal patient outcomes.

Dataset Information

Electroretinograms before and after extraction of large intraocular iron foreign body.

Purpose

Observations

Conclusions and importance

Publications

Electroretinograms before and after extraction of large intraocular iron foreign body.

Similar Datasets

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