Transplant wait. The wait is variable depending on your acuity (how sick you are), blood type, body size, your position on the waiting list, and to some extent, where you live. The wait can be days to years but is usually measured at least in several months. The scarcity of donor hearts is one reason alternative strategies such as permanent mechanical devices have great potential.
Variables. Cardiac status unos rank blood and match available any donor availability which has limited total transplant options.