Life Threatening Severe QTc Prolongation in Patient with Systemic Lupus Erythematosus due to Hydroxychloroquine

<div>Admission ECG: 1st-degree heart block, with QTc 689 ms.</div>

Case Reports in Cardiology

Figure 1: Life Threatening Severe QTc Prolongation in Patient with Systemic Lupus Erythematosus due to Hydroxychloroquine 