Long-term hydroxychloroquine use requires monitoring for which complication?

Long-term hydroxychloroquine use requires monitoring for which complication?

• A. Retinopathy
• B. Nephropathy
• C. Neuropathy
• D. Hepatopathy

Answer: (A)

Retinal toxicity from long-term hydroxychloroquine use is the key issue to monitor. Hydroxychloroquine can accumulate in the retinal pigment epithelium and interfere with lysosomal function, leading to progressive damage of the retina and photoreceptors. This damage can start without symptoms and progress to irreversible vision loss if not detected early, which is why regular eye monitoring is essential for patients on chronic therapy. Baseline eye examination should occur soon after starting treatment, with annual dilated fundoscopic exams and screening tests such as visual field testing and optical coherence tomography (OCT) after the first year or sooner if risk factors are present. Keeping the daily dose under about 5 mg/kg real body weight and being mindful of duration and individual risk factors (like preexisting eye disease, renal or hepatic impairment) help reduce risk. Nephropathy, neuropathy, and hepatopathy are not the typical, defining monitoring concerns with long-term hydroxychloroquine, making retinopathy the most important, evidence-based complication to watch for.

Retinal toxicity from long-term hydroxychloroquine use is the key issue to monitor. Hydroxychloroquine can accumulate in the retinal pigment epithelium and interfere with lysosomal function, leading to progressive damage of the retina and photoreceptors. This damage can start without symptoms and progress to irreversible vision loss if not detected early, which is why regular eye monitoring is essential for patients on chronic therapy.

Baseline eye examination should occur soon after starting treatment, with annual dilated fundoscopic exams and screening tests such as visual field testing and optical coherence tomography (OCT) after the first year or sooner if risk factors are present. Keeping the daily dose under about 5 mg/kg real body weight and being mindful of duration and individual risk factors (like preexisting eye disease, renal or hepatic impairment) help reduce risk.

Nephropathy, neuropathy, and hepatopathy are not the typical, defining monitoring concerns with long-term hydroxychloroquine, making retinopathy the most important, evidence-based complication to watch for.