- Y-linked deafness 1 [DOID:0111759]
A Y-linked deafness characterized by male-limited postlingual progressive sensorineural hearing loss of variable severity, with onset in the first to third decades of life.
- Y-linked deafness 2 [DOID:0111758]
A Y-linked deafness characterized by male-limited bilateral progressive sensorineural hearing loss of variable severity, with onset in the third to fifth decades of life that has_material_basis_in mutation in the TBL1Y gene on chromosome Yp11.2.
- second-degree atrioventricular block [DOID:0050822]
An atrioventricular block that is characterized by progressive prolongation of the PR interval on consecutive beats followed by a blocked P wave on electrocardiogram or intermittently non-conducted P waves not preceded by PR changes on electrocardiogram caused by a conduction block between the atria and the ventricles through the atrioventricular node.
- third-degree atrioventricular block [DOID:0050823]
An atrioventricular block that is characterized by bradycardia, hypotension, hemodynamic instability and complete dissociation between P waves and QRS complexes on electrocardiogram caused when conduction fails to propagate from atria to ventricles.
- chromosome 16p12.1 deletion syndrome [DOID:0060399]
A chromosomal deletion syndrome that has_material_basis_in a 520 kb deletion on the short (p) arm of the chromosome at a location designated 16p12.1 and is characterized by developmental delay, craniofacial dysmorphology, and congenital heart defects.
- Cri-Du-Chat syndrome [DOID:12580]
A syndrome that has_material_basis_in deletion of the end of the chromosome 5 p arm and that is characterized by intellectual disability, delayed development, small head size, low birth weight, weak muscle tone widely set eyes, low-set ears, a small jaw, a rounded face and a high-pitched cry that sounds like that of a cat.
- congenital disorder of glycosylation Ig [DOID:0080559]
A congenital disorder of glycosylation I that is characterized by facial dysmorphism (prominent forehead, large ears, thin upper lip), generalized hypotonia, feeding difficulties, moderate to severe developmental delay, progressive microcephaly, frequent upper respiratory tract infections due to impaired immunity with decreased immunoglobulin levels, and decreased coagulation factors and has_material_basis_in homozygous or compound heterozygous mutation in the gene encoding dolichyl-P-mannose:Man-7-GlcNAc-2-PP-dolichyl-alpha-6-mannosyltransferase on chromosome 22q13.