Common hepatic duct: The duct formed by the junction of the right hepatic duct (which drains bile from the right half of the liver) and the left hepatic duct (which drains bile from the left half of the liver). The common hepatic duct then joins the cystic duct coming from the gallbladder to form the common bile duct.
- Commotio cordis
Commotio cordis: Sudden cardiac arrest from a blunt, nonpenetrating blow to the chest. The basis of the cardiac arrest is ventricular fibrillation (a chaotically abnormal heart rhythm) triggered by chest wall impact immediately over the anatomic position of the heart. This can happen, for example, in sports such with baseballs, softballs, lacrosse balls, hockey pucks […]
- Community-acquired infection
Community-acquired infection: An infection acquired in the community. In contrast to a nosocomial (hospital-acquired) infection.
- Compassionate use
Compassionate use: Term formerly used in the US for a method of providing experimental therapeutics prior to final FDA approval for use in humans. This procedure was used with very sick individuals who have no other treatment options. Often, case-by-case approval was obtained from the FDA for “compassionate use” of a drug or therapy. The […]
- Compartment syndrome
A condition in which there is swelling and an increase in pressure within a limited space (a compartment) that presses on and compromises blood vessels, nerves, and/or tendons that run through that compartment. Hence, the function of tissue within that compartment is compromised. Compartment syndromes usually involve the leg but can also occur in the […]
- Complement system
Complement system: A series of molecules that work together to perform many immune system functions. For example, the complement system helps to dissolve and remove immune complexes and to kill foreign cells.