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Endophthalmitis Post Cataract Surgery Study

EPCS LogoEndophthalmitis Post Cataract Surgery Study (EPCS)

The EPCS study is a nationwide study being conducted to evaluate risk factors for endophthalmitis following cataract surgery. The objectives of the study are:

  1. To ascertain the rates of endophthalmitis after cataract surgery on a national level in the United States, and
  2. To identify risk factors for the development of endophthalmitis.

The second objective will be achieved through a case control study. The study relies on the Medicare claims database to identify patients who had cataract surgery in 2003 and 2004 and subsequently had a diagnosis of endophthalmitis within six weeks after surgery (cases). 700 cases of presumed endophthalmitis have been selected. In addition, we have also randomly selected approximately 3,500 cataract surgeries after which no endophthalmitis claims were submitted (controls).

Once cataract surgery cases have been identified, the surgery provider will be contacted to request information on the specifics of the surgery, including such things as cataract wound size and location, perioperative antibiotic use and information about the patient such as presence of systemic disease (e.g. diabetes).

Physicians who provided treatment for endophthalmitis will also be contacted to obtain information on the diagnosis and treatment.

No data obtained in this study will be given to Medicare, and in no way will any participating surgeon be identified individually. All data are completely confidential, and results will only be reported at an aggregate level.

This study complies with national HIPAA regulations and has received IRB approval from the Johns Hopkins Medical Institutions IRB. This approval extends to individual physician's participation in the study (links to documentation provided below).

Please send all correspondence to:

Dr. Emily Gower, or Dr. Lisa Keay
600 N. Wolfe Street / Wilmer 116
Baltimore, MD 21287
Phone: (410) 614-5636
Fax: (888) 681-0979
epcs@jhmi.edu

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