ABSTRACT

BACKGROUND: In addition to cardiotoxicity, ocular toxicity induced by chemotherapeutic agents is not uncommon.

OBJECTIVE: This study aimed to explore the association between ocular adverse events and major adverse cardiovascular events (composite endpoint) caused by chemotherapy, and whether specific ocular events could be potential predictors of some specific components of the composite endpoint.

METHODS: A total of 5378 newly diagnosed patients (age > 18 y/o) with any malignancy or metastatic solid tumors who received chemotherapy from January 1997 to December 2010 were enrolled from the Taiwan National Health Insurance Research Database. Patients who developed new incident ocular diseases were classified as the study group, and those who did not develop incident ocular diseases as the control group.

RESULTS: After propensity score matching, there was a significant increase in the incidence of stroke in the ocular diseases group compared to the no ocular diseases group (13.4% vs. 4.5%, p < 0.0001). Tear film insufficiency, keratopathy, glaucoma, and lens disorders were associated with a significantly higher risk of stroke. A longer duration of methotrexate and a longer duration with higher total amount of tamoxifen were associated with both incident ocular diseases and incident stroke. Cox proportional hazards regression showed that the only independent risk factor for stroke was incident ocular diseases [Adjusted relative risk (95% confidence interval): 2.96 (1.66-5.26), p = 0.0002]. In addition, incident ocular disease was the most significant risk factor compared with other traditional cardiovascular risk factors.

CONCLUSIONS: Incident ocular diseases related to chemotherapy were associated with a significantly higher risk of stroke.

PMID:37229341 | PMC:PMC10203719 | DOI:10.6515/ACS.202305_39(3).20221005A

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