Table I.

Effect of consanguinity

Types of graft	No. of cases	No. of survivals	No. of deaths
Mother-to-son*	8	6	2
Mother-to-daughter	5	5	0
Father-to-daughter	2	1	1
Brother-to-brother†*	10	6	4
Brother-to-sister	1	0	1
Sister-to-brother*	6	4	2
Unrelated
Same sex*	8	3	5
Female-to-male	4	1	3
Male-to-female	1	1	0
Total	45	27	18

^*In each group, 1 additional homograft was donated and removed either immediately or early in the postoperative course. The failures were due either to breeches of ABO incompatibility (2 cases) or to the imposition of excessive ischemia (2 cases). Second homografts were placed, and, in the above tabulation, only the final donors are considered.

^†Includes 2 sets of fraternal twins. One patient is alive after more than a year. The other died of a fungus brain abscess and gastrointestinal hemorrhage after 208 days.