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Association between acute corneal hydrops in patients with keratoconus and mitral valve prolapse
Zahra Rabbanikhah1, Mohammad Ali Javadi, Pooya Rostami
1Shahid Beheshti University of Medical Sciences, Tehran, Iran. labbafi@hotmail.com
Insights
Patients with keratoconus (KCN) experiencing corneal hydrops show a strong association with mitral valve prolapse (MVP). This suggests a potential link requiring further cardiac evaluation in KCN patients with hydrops.
Area of Science:
- Ophthalmology
- Cardiology
- Genetics
Background:
- Keratoconus (KCN) is a progressive thinning of the cornea.
- Corneal hydrops are acute fluid accumulation within the cornea.
- Mitral valve prolapse (MVP) is a common cardiac condition.
Purpose of the Study:
- To investigate the potential association between corneal hydrops in patients with keratoconus (KCN) and mitral valve prolapse (MVP).
Main Methods:
- A case-control study was conducted with 32 KCN patients with corneal hydrops (cases) and 128 controls.
- Cardiac examination including echocardiography was performed for all participants.
- MVP diagnosis followed established criteria (Perloff et al).
Main Results:
- MVP prevalence was significantly higher in the case group (65.6%) compared to controls (9%, P < 0.001).
- Patients with corneal hydrops had an odds ratio of 26.7 for MVP.
- Adjusted analyses confirmed a higher odds ratio for MVP in the case group.
Conclusions:
- A significant correlation exists between corneal hydrops secondary to KCN and MVP.
- Further cardiac evaluation is recommended for KCN patients presenting with corneal hydrops to assess mitral valve status.
Purpose:
To investigate the association between corneal hydrops in patients with keratoconus (KCN) and mitral valve prolapse (MVP).
Methods:
This case-control study included patients with KCN with corneal hydrops who were referred to Labbafinejad Medical Center or a private clinic between March 2006 and March 2008, as the case group. The control group included group-matched individuals who were selected from patients of the same medical centers without any ophthalmic diseases. The size of the control group was 4 times that of the case group to increase the power of the study. All subjects were referred for cardiac examination and underwent 2-dimensional, M-mode, and color Doppler echocardiography. The criteria of Perloff et al were used for diagnosis of MVP. Fisher exact test and logistic regression analysis were used to compare these 2 groups.
Results:
Overall, 160 participants (32 cases and 128 controls) with mean age of 31.0 ± 13.2 years were studied. Prevalence of MVP was 65.6% in the case group and 9% in controls (P < 0.001). Patients with hydrops had an odds ratio of 26.7 for having MVP (95% confidence interval, 9.5-75.2). Age- and sex-adjusted analyses revealed that the odds ratio of MVP in the case group was higher than that in the control group.
Conclusions:
There seems to be a correlation between corneal hydrops secondary to KCN and MVP, suggesting further evaluation to assess mitral valve status.
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