criss-cross heart https://www.malacards.org/card/criss_cross_heart MESH:D003420 SCTID:253269002 Orphanet:1461 MEDGEN:8181 MONDO:0015449 ICD9:746.89 twisted atrioventricular connections criss-cross atrioventricular relationships superoinferior ventricles UMLS:C0010334 icd11.foundation:856695997 GARD:0018724 Criss cross heart (CCH) is a cardiac malformation where the inflow streams of the two ventricles cross due to twisting of the heart about its major axis. The clinical features depend on the particular cardiac defects associated, like simple or corrected transposition of the great arteries and ventricular septal defects. congenital heart malformation