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IntroductionThe mitral valve, one of the heart's four valves, regulates blood flow. These valves have flaps that open and close to direct blood properly through the heart and body. During each heartbeat, the flaps open for blood to pass through and seal shut to prevent backflow. Specifically, the mitral valve opens to allow blood flow from the heart's upper left chamber to the lower left chamber. It then closes securely as the lower left chamber contracts to pump blood to the body, preventing...
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Related Experiment Video

Updated: Apr 19, 2026

Full-Circle Cauterization of Limbal Vascular Plexus for Surgically Induced Glaucoma in Rodents
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Association between mitral valve prolapse and open-angle glaucoma.

Shuo Ju Chiang1, Masao Daimon2, Li Hsuan Wang3

  • 1Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan Division of Cardiology, Department of Internal Medicine, Taipei Medical University Hospital, Taipei, Taiwan.

Heart (British Cardiac Society)
|December 16, 2014
PubMed
Summary

Mitral valve prolapse (MVP) significantly increases the risk of developing open-angle glaucoma (OAG). This population-based study found MVP is a key predictor for OAG development, even after accounting for other health conditions.

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Area of Science:

  • Ophthalmology and Cardiology
  • Connective Tissue Biology

Background:

  • Proteoglycans and glycosoaminoglycans are crucial in connective tissue formation.
  • Accumulation of these substances in myxomatous tissues may affect mitral valve mechanics and ocular extracellular matrix.
  • Shared pathophysiology between open-angle glaucoma (OAG) and mitral valve prolapse (MVP) is suggested.

Purpose of the Study:

  • To investigate the hypothesis that mitral valve prolapse (MVP) increases the risk of developing open-angle glaucoma (OAG).

Main Methods:

  • Retrospective cohort study utilizing a longitudinal health insurance database (1996-2008).
  • 1,073,891 individuals were sampled, with 21,677 diagnosed with MVP and 86,708 propensity score-matched controls.
  • Cox proportional hazards analysis was performed, adjusting for comorbidities to assess OAG risk in the MVP group.

Main Results:

  • The incidence rate of OAG was 16.05 per 10,000 person-years in the MVP group versus 10.17 in the non-MVP group.
  • Patients with MVP had a significantly elevated adjusted hazard ratio (HR) of 1.88 (95% CI 1.58 to 2.23) for OAG.
  • Kaplan-Meier analysis confirmed a higher cumulative incidence of OAG in the MVP group throughout the follow-up period (p < 0.001).

Conclusions:

  • Pre-existing mitral valve prolapse (MVP) is a significant predictor for the development of open-angle glaucoma (OAG).
  • These findings highlight a potential link between cardiovascular and ocular conditions, emphasizing the need for further research into shared mechanisms.