'PAR' in PAR 20 or PAR 50 is an acronym standing for Parabolic Aluminized Reflector. This name refers to the construction of the PAR bulb. The bulb traditionally features a tungsten filament surrounded by a reflector with an aluminum coating (hence aluminized). The reflector intensifies the beam and makes it more efficient.
Toe necrosis; Toe ischemia; Amputation; Dry gangrene Abstract Toe necrosis may have vast different etiologies. These include ischemia, embolus, and others. (1) The most common etiology is ischemia. It is a reduction in blood supply to a viable tissue that can lead to susceptibility to infection and tissue death. Peripheral ischemia, which is rooted in the
Individuals with arterial disease (atherosclerosis) or a blood clot (thrombosis) that blocks or interrupts blood supply to the toe may develop tissue death (gangrene). Amputation may also be necessary to prevent the spread of infection, bone cancer, or skin cancer. The goal for toe amputation is to remove damaged tissue and relieve pain while preserving healthy tissue and foot function.