Transmission, vertical
Passage of a disease-causing agent (pathogen) from mother to baby during the period immediately before and after birth. Transmission might occur across the placenta, in the breast milk, or through direct contact during or after birth. For example, HIV can be a vertically transmitted pathogen. Also known as perinatal transmission.
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- Transmyocardial laser revascularization
A procedure by which a physician uses a laser to make holes in the heart to relieve the pain of severe angina. Transmyocardial laser revascularization has been done from both the outside and inside of the heart. When done from the outside, a laser (carbon dioxide or holmium laser) is placed in proximity to the […]
- Transplant
The grafting of a tissue from one place to another, just as in botany a bud from one plant might be grafted onto the stem of another. The transplanting of tissue can be from one part of the patient to another (autologous transplantation), as in the case of a skin graft using the patient’s own […]
- Transplant, hand and forearm
Transplantation of the hand and the forearm from one person (a deceased donor) to another (the recipient). In the first hand transplant, performed in Ecuador in 1964, the donor hand was rejected after two weeks. The first successful hand and forearm transplant was done in 1998 in Lyon, France. In 1999, surgeons in Louisville, Kentucky, […]
- Transplant, lung
The first lung transplant was done by the American surgeon James Hardy (1918-) in 1964.
- Transplant, renal
Replacement of a diseased, damaged, or missing kidney with a donor kidney. Also called a kidney transplant. Patients with end-stage renal failure are candidates for transplantation. A successful transplant frees the patient from dialysis and provides the kidney’s other metabolic functions. The survival rate a year after a transplant from a living related donor is […]