Table 4.
Study | Platform | Patients | Diagnostic yield (%) | ||
---|---|---|---|---|---|
No. | Phenotype | ||||
1 | Thienpont B, et al. (2007) [12] | 1 Mb BAC/PAC | 60 | Syndromic CHD | 10(16.6%) |
2 | Richards AA, et al. (2008) [13] | Nimblegen 385 K CGH | 20 | Syndromic CHD | 5 (25%) |
20 | Isolated CHD | 0 | |||
3 | Erdogan F, et al. (2008) [14] | tiling path BAC array | 105 | Isolated CHD | 4(3.8%) |
4 | Breckpot J, et al. (2010) [15] | 1 Mb BAC/PAC | 90 | Syndromic CHD | 16(17.8%) |
5 | Goldmuntz E, et al. (2011) [16] | Affymetrix GeneChip 100 K array | 58 | Syndromic CHD | 12(20.7%) |
6 | Breckpot J, et al. (2011) [17] | Affymetrix 6.0 array | 46 | Isolated CHD | 2 (4.3%) |
7 | Connor JA, et al. (2013) [18] | Not specified | 121 | Unselected CHD | 9 (7%) |
8 | Syrmou A, et al. (2013) [19] | Agilent 244 K CGH array | 55 | Syndromic CHD | 29 (52.7%)a |
Agilent 4 × 180 K SNP + CGH array | |||||
9 | Our study | Same as above | 162 | Isolated CHD | 7 (4.3%) |
260b | Syndromic CHD | 47 (18.1%) |
Diagnostic yield was defined as the number of patients with abnormal aberrations divided by the total number of cases tested. In patients with syndromic CHD, pathogenic chromosomal imbalances were detected in about 16%-25% of cases. But the diagnostic yield of CMA in isolated CHD cohort was poorly studied.
aMany CNVs included were not necessary pathogenic.
bTwelve patients with gross chromosomal aberrations were included.