Explore the vast range of titles available.

Coarctation of the aorta (CoA) remains a frequently underrecognized cause of secondary hypertension in children. We report a case of a preadolescent with persistent, treatment-resistant hypertension initially evaluated with normal echocardiograms and extensive workups, including renal, endocrine, and genetic testing. Importantly, lower extremity blood pressure and femoral pulse assessment were omitted during initial evaluations. After referral to pediatric cardiology, diminished femoral pulses were detected and a third echocardiogram revealed severe CoA, later confirmed by CT angiography. The patient underwent successful stent placement, resulting in blood pressure normalization and discontinuation of all antihypertensive medications. This case highlights the diagnostic pitfalls associated with incomplete physical examination and reliance on a single imaging modality. It reinforces the importance of guideline-based evaluation for pediatric hypertension, including routine assessment of femoral pulses and four-limb blood pressure measurements. In cases of persistent hypertension with high clinical suspicion despite inconclusive initial imaging, repeat echocardiography or advanced imaging should be considered to prevent diagnostic delays and optimize outcomes.

Background Evidence for the pathogenesis and treatment of postacute coronavirus disease 2019 (COVID‐19) (long COVID) is lacking. As long COVID symptoms are predicted to have an impact on the global economy, clarification of the pathogenesis is urgently needed. Our experiences indicated that some symptoms were complicated by diseases established before the COVID‐19 pandemic. Methods Using a retrospective, cross‐sectional study, we aimed to evaluate the diseases complicating long COVID. Using the medical records of patients with confirmed COVID‐19 exhibiting residual symptoms lasting ≥60 days postinfection who visited our clinic in January 2021–February 2023, we investigated the symptoms and diseases observed. We identified diseases that occurred after COVID‐19 and excluded those that were exacerbations of existing diseases. Results During the first visit, the most common symptoms reported in a total of 798 patients were fatigue (523 patients), anxiety (349 patients), and lack of motivation (344 patients). Complicating diseases were observed in 452 patients (57%). There were 115, 65, and 60 patients with postural tachycardia syndrome, postural syndrome without tachycardia, and mood disorders, respectively. Some diseases requiring immediate treatment included pulmonary thromboembolism, purulent shoulder arthritis, cerebellopontine angle tumors, myasthenia gravis, and cervical myelopathy. Conclusion Not all symptoms that occur after COVID‐19 should be treated as long COVID. Similar to normal medical treatment, a list of differential diagnoses should be maintained based on symptoms to obtain definitive diagnoses. This figure shows all complicated diseases detected by a retrospective chart review of patients with long COVID referred to our hospital. The purpose of this study was to evaluate symptoms and complicated diseases in patients with long COIVD.