At present, treatment for<unk>  is symptomatic, meaning that the focus is on treating the signs and symptoms of the conditions as they arise. The Chromosome 18 Clinical Research Center has published a list of recommended screening and evaluations:
Tetrasomy 18p
Tetrasomy 9p
Monosomy 9p
Distal trisomy 10q
2q37 monosomy
Partial monosomy 13q
Small supernumerary marker chromosome
Chromosome 2q deletion