Aortic stenosis is the obstruction of blood flow across the aortic valve. The prevalence increases with age; in the United States, an estimated 2-5% of adults older than 65 years have aortic stenosis.

Osteoarthritis (OA) results from an imbalance between breakdown and repair of the tissues in the synovial joints. [1] Risk factors include trauma, overuse, obesity, and genetic predisposition. [2] The ...

Author: Cosimo Laterza, MD, FAWM, FAAEM; Chief Editor: Trevor John Mills, MD, MPH more... Left orbital floor fracture. This patient presented with little motility disturbance; however, because of the ...

Author: Vikramjit S Kanwar, MBBS, MBA, MRCP(UK), FRCPCH, FAAP; Chief Editor: Hassan M Yaish, MD more... Neutrophils in this blood smear (original magnification X1500) have the 2 characteristics of the ...

Most of the US population will have low back pain at some point in their lifetime, with up to about a quarter of the population experiencing it within the past 3 months. [1] In addition, low back pain ...

Povidone-iodine 1.25% ophthalmic solution may be as effective as topical antibiotics, especially in resource-limited settings There is no data supporting the cost-effectiveness of antibiotics for mild ...

Tumor limited to one ovary; capsule intact, no tumor on ovarian surface; no malignant cells in ascites or peritoneal washings ...

Epistaxis is defined as acute hemorrhage from the nostril, nasal cavity, or nasopharynx. It is a frequent emergency department (ED) complaint and often causes significant anxiety in patients and ...

The diagnosis of pregnancy has traditionally been made based on history and physical examination findings. Important aspects of the menstrual history must be obtained. The woman should describe her ...

Mager DE, Lin SX, Blum RA, Lates CD, Jusko WJ. Dose equivalency evaluation of major corticosteroids: pharmacokinetics and cell trafficking and cortisol dynamics. J Clin Pharmacol. 2003 Nov.

Febrile seizures are the most common seizure type in children, typically occurring between ages 6 months and 5 years in association with fever (temperature ≥ 100.4°F or 38°C), without evidence of ...

Otolaryngology and Facial Plastic Surgery articles covering symptoms, diagnosis, staging, treatment, prognosis, and follow-up. Peer reviewed and up-to-date recommendations written by leading experts.