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Ophthalmology. 2014 Jan;121(1):262-8. doi: 10.1016/j.ophtha.2013.08.010. Epub 2013 Sep 29.

High prevalence of peripheral retinal vascular anomalies in family members of patients with familial exudative vitreoretinopathy.

Author information

1
Associated Retinal Consultants, P.C., Royal Oak, Michigan; Department of Ophthalmology, William Beaumont Hospital, Royal Oak, Michigan.
2
Department of Ophthalmology, William Beaumont Hospital, Royal Oak, Michigan.
3
Associated Retinal Consultants, P.C., Royal Oak, Michigan; Department of Ophthalmology, William Beaumont Hospital, Royal Oak, Michigan. Electronic address: mgjt46@aol.com.

Abstract

OBJECTIVE:

To describe the prevalence and severity of familial exudative vitreoretinopathy (FEVR) in asymptomatic relatives of known symptomatic FEVR patients.

DESIGN:

Uncontrolled and retrospective case series at a single tertiary referral vitreoretinal practice.

PARTICIPANTS:

A total of 148 eyes of 74 subjects were studied.

METHODS:

A retrospective chart review was conducted of patients with a diagnosis of FEVR between January 2011 and January 2013 at a single tertiary care retina practice. Data were collected from patient charts, including sex, gestational age at birth, age at presentation, referring diagnosis, family history, prior ocular surgery, clinical presentation, and diagnostic imaging in each eye. Inclusion criteria included confirmed clinical diagnosis of FEVR in patients referred to our clinic for evaluation of decreased vision. Patients were excluded if a definitive diagnosis of FEVR could not be made.

MAIN OUTCOME MEASURES:

Clinical and angiographic findings.

RESULTS:

A total of 74 subjects from 17 separate families met the inclusion criteria for this study. There were an average of 4.4 subjects per family included in this study. The cohort was 55% male and included 17 patients and 57 family members who agreed to undergo genotyping, examination, and diagnostic imaging. Forty-three percent of FEVR patients had detectable mutations in FZD4, NDP, or TSPAN12. Only 8% of the cohort reported a positive family history of FEVR in a first-degree relative. Among the index patients, 76% had clinical stage 3, 4, or 5 FEVR and 24% had stage 1 or 2 FEVR. Among the asymptomatic family members screened, 58% demonstrated clinical or angiographic findings consistent with stage 1 or 2 FEVR and 21% demonstrated clinical or angiographic findings consistent with stage 3, 4, or 5 FEVR.

CONCLUSIONS:

Asymptomatic family members of FEVR patients frequently have early manifestations of FEVR (stage 1 or 2). Early-stage FEVR may progress to more advanced stages, which can result in vision loss. These data support the use of angiographic screening and clinical examination in immediate relatives of patients with symptomatic FEVR.

PMID:
24084499
DOI:
10.1016/j.ophtha.2013.08.010
[Indexed for MEDLINE]
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