Sinuses are air-filled cavities behind your eyebrows, behind your cheekbones, and between your eyes. They are lined with a mucous membrane that filters and humidifies the air you inhale. This lining ...

Patients and physicians have different views about what constitutes a sinus infection, which could result in communication issues and misdiagnoses, new research suggests. A team led by researchers at ...

Tachycardia describes when the heart beats faster than normal. Sinus rhythm with tachycardia occurs when the sinus node fires electrical impulses abnormally quickly. Inappropriate sinus tachycardia ...

Sinus rhythm is the term for the regular pattern of heartbeats driven by the heart’s natural pacemaker, the sinus node. Variations like sinus tachycardia (fast heart rate) and sinus bradycardia (slow ...

If you feel pain and pressure in your sinuses, that's not necessarily because there's anything wrong with them. In fact, your pain may be a sign of an entirely different condition: migraine. People ...

Carotid sinus massage is a major diagnostic test for carotid sinus hypersensitivity, which may be manifested as dizziness or syncope. Carotid sinus massage is also used in emergency settings to ...

Pain and pressure around your sinuses -- in your forehead, in your cheeks, behind and between your eyes, and above your nose Tenderness when you touch your face Pain that gets worse when you bend over ...

- any of the paired sinuses in the bones of the face adjacent to the nasal cavity that are lined with mucous membrane that is continuous with the lining of the nasal cavities ...