Laboratory Medicine ›› 2026, Vol. 41 ›› Issue (2): 106-111.DOI: 10.3969/j.issn.1673-8640.2026.02.002
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MA Shanshan, ZHANG Rong, YIN Ting, ZHENG Anshun, WANG Zhiwei, WANG Yongan, WANG Leilei(
)
Received:2025-02-14
Revised:2025-07-01
Online:2026-02-28
Published:2026-03-06
CLC Number:
MA Shanshan, ZHANG Rong, YIN Ting, ZHENG Anshun, WANG Zhiwei, WANG Yongan, WANG Leilei. Genetic analysis and pregnancy outcomes of 19 fetuses with abnormal copy number in 22q11.2 region of chromosome[J]. Laboratory Medicine, 2026, 41(2): 106-111.
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| 编号 | 穿刺孕周/周 | 22q11.2缺失区域 | 大小/Mb | 关键致病基因 | 变异判读结果 | 遗传方式 | 胎儿超声异常 | 其他产前 诊断指征 | 胎儿心脏畸形 |
|---|---|---|---|---|---|---|---|---|---|
| P1 | 19+2 | 22q11.2(18,916,842-21,800,471)x1 | 2.88 | TBX1、CRKL | P | 心轴增大;心脏发育异常 | 不良孕产史 | 是 | |
| P2 | 19+3 | 22q11.2(18,648,855-21,800,471)x1 | 3.15 | TBX1、CRKL | P | 胎儿多发CPC;唇裂(考虑合并腭裂) | 否 | ||
| P3 | 27+2 | 22q11.2(18,648,855-21,800,471)x1 | 3.15 | TBX1、CRKL | P | VSD;升主动脉内径狭窄;主动脉弓未明确显示 | 是 | ||
| P4 | 20+6 | 22q11.2(18,648,855-20,312,661)x1 | 1.66 | TBX1、CRKL | P | NIPT①提示22q11.2微缺失; | 否 | ||
| P5 | 18+6 | 22q11.2(18,919,477-20,312,661)x1 | 1.39 | TBX1、CRKL | P | DS②高风险 | 否 | ||
| P6 | 25+4 | 22q11.2(18,648,855-21,800,471)x1 | 3.15 | TBX1、CRKL | P | 母源 | 右位主动脉弓,左锁骨下动脉迷走;先天性血管环;三尖瓣微量反流;小脑髓池增宽;母体腹内段脐静脉稍增宽(内径为10.2 mm) | 不良孕产史 | 是 |
| P7 | 23 | 22q11.2(21,059,669-21,464,764)x1 | 0.41 | CRKL | LP | VSD;肺动脉主干内径不成比例 | 是 | ||
| P8 | 20+4 | 22q11.2(21,059,669_21,800,471)x1 | 0.74 | CRKL | LP | 主肺动脉和升主动脉内径比例稍失调;三尖瓣微量反流;双侧CPC;右肾积水;透明隔腔隐见且内径偏窄 | 高龄 | 是 |
| 编号 | 穿刺孕周/周 | 22q11.2缺失区域 | 大小/Mb | 关键致病基因 | 变异判读结果 | 遗传方式 | 胎儿超声异常 | 其他产前 诊断指征 | 胎儿心脏畸形 |
|---|---|---|---|---|---|---|---|---|---|
| P1 | 19+2 | 22q11.2(18,916,842-21,800,471)x1 | 2.88 | TBX1、CRKL | P | 心轴增大;心脏发育异常 | 不良孕产史 | 是 | |
| P2 | 19+3 | 22q11.2(18,648,855-21,800,471)x1 | 3.15 | TBX1、CRKL | P | 胎儿多发CPC;唇裂(考虑合并腭裂) | 否 | ||
| P3 | 27+2 | 22q11.2(18,648,855-21,800,471)x1 | 3.15 | TBX1、CRKL | P | VSD;升主动脉内径狭窄;主动脉弓未明确显示 | 是 | ||
| P4 | 20+6 | 22q11.2(18,648,855-20,312,661)x1 | 1.66 | TBX1、CRKL | P | NIPT①提示22q11.2微缺失; | 否 | ||
| P5 | 18+6 | 22q11.2(18,919,477-20,312,661)x1 | 1.39 | TBX1、CRKL | P | DS②高风险 | 否 | ||
| P6 | 25+4 | 22q11.2(18,648,855-21,800,471)x1 | 3.15 | TBX1、CRKL | P | 母源 | 右位主动脉弓,左锁骨下动脉迷走;先天性血管环;三尖瓣微量反流;小脑髓池增宽;母体腹内段脐静脉稍增宽(内径为10.2 mm) | 不良孕产史 | 是 |
| P7 | 23 | 22q11.2(21,059,669-21,464,764)x1 | 0.41 | CRKL | LP | VSD;肺动脉主干内径不成比例 | 是 | ||
| P8 | 20+4 | 22q11.2(21,059,669_21,800,471)x1 | 0.74 | CRKL | LP | 主肺动脉和升主动脉内径比例稍失调;三尖瓣微量反流;双侧CPC;右肾积水;透明隔腔隐见且内径偏窄 | 高龄 | 是 |
| 编号 | 穿刺孕周/周 | 22q11.2重复区域 | 大小/Mb | 关键致病基因 | 变异 判读 | 遗传方式 | 胎儿超声异常 | 其他产前 诊断指征 | 胎儿心脏畸形 |
|---|---|---|---|---|---|---|---|---|---|
| P9 | 20+2 | 22q11.2(20,716,876-21,800,471)x3 | 1.08 | CRKL | LP | 母源 | 不良妊娠史 | 否 | |
| P10 | 17+3 | 22q11.2(20,754,239-21,461,017)x3 | 1.50 | CRKL | LP | 母源 | DS高风险;孕妇眼睑下垂 | 否 | |
| P11 | 19+3 | 22q11.2(18,970,561-21,800,471)x3 | 2.83 | TBX1、CRKL | P | 母源 | NIPT提示22号染色体部分重复 | 否 | |
| P12 | 21+2 | 22q11.2(18,648,855-21,464,764)x3 | 2.82 | TBX1、CRKL | P | DS临界风险;NIPT提示22号染色体存在异常 | 否 | ||
| P13 | 22+1 | 22q11.2(18,648,855-21,804,597)x3 | 3.15 | TBX1、CRKL | P | DS临界风险;染色体异常家族史 | 否 | ||
| P14 | 19+3 | 22q11.2(18,916,960-21,800,471)x3 | 2.88 | TBX1、CRKL | P | DS临界风险;孕妇智力低下 | 否 | ||
| P15 | 18+1 | 22q11.2(18,648,855-21,800,471)x3 | 3.15 | TBX1、CRKL | P | 父源 | 三尖瓣微量反流;NF增厚(5.0 mm) | 否 | |
| P16 | 18+5 | 22q11.2(20,312,660-21,915,207)x3 | 1.6 | CRKL | LP | DS高风险; 高龄 | 否 | ||
| P17 | 18+1 | 22q11.2(18,916,842-21,464,764)x3 | 2.55 | TBX1、CRKL | P | VSD,NT增厚 (3.0 mm) | 高龄 | 是 | |
| P18 | 18+1 | 22q11.2(18,984,187-21,459,713)x3 | 2.48 | TBX1、CRKL | P | 父源 | DS高风险 | 否 | |
| P19 | 13+1 | 22q11.2(18,648,855-21,461,017)x3 | 2.81 | TBX1、CRKL | P | NT增厚(2.8 mm) | 否 |
| 编号 | 穿刺孕周/周 | 22q11.2重复区域 | 大小/Mb | 关键致病基因 | 变异 判读 | 遗传方式 | 胎儿超声异常 | 其他产前 诊断指征 | 胎儿心脏畸形 |
|---|---|---|---|---|---|---|---|---|---|
| P9 | 20+2 | 22q11.2(20,716,876-21,800,471)x3 | 1.08 | CRKL | LP | 母源 | 不良妊娠史 | 否 | |
| P10 | 17+3 | 22q11.2(20,754,239-21,461,017)x3 | 1.50 | CRKL | LP | 母源 | DS高风险;孕妇眼睑下垂 | 否 | |
| P11 | 19+3 | 22q11.2(18,970,561-21,800,471)x3 | 2.83 | TBX1、CRKL | P | 母源 | NIPT提示22号染色体部分重复 | 否 | |
| P12 | 21+2 | 22q11.2(18,648,855-21,464,764)x3 | 2.82 | TBX1、CRKL | P | DS临界风险;NIPT提示22号染色体存在异常 | 否 | ||
| P13 | 22+1 | 22q11.2(18,648,855-21,804,597)x3 | 3.15 | TBX1、CRKL | P | DS临界风险;染色体异常家族史 | 否 | ||
| P14 | 19+3 | 22q11.2(18,916,960-21,800,471)x3 | 2.88 | TBX1、CRKL | P | DS临界风险;孕妇智力低下 | 否 | ||
| P15 | 18+1 | 22q11.2(18,648,855-21,800,471)x3 | 3.15 | TBX1、CRKL | P | 父源 | 三尖瓣微量反流;NF增厚(5.0 mm) | 否 | |
| P16 | 18+5 | 22q11.2(20,312,660-21,915,207)x3 | 1.6 | CRKL | LP | DS高风险; 高龄 | 否 | ||
| P17 | 18+1 | 22q11.2(18,916,842-21,464,764)x3 | 2.55 | TBX1、CRKL | P | VSD,NT增厚 (3.0 mm) | 高龄 | 是 | |
| P18 | 18+1 | 22q11.2(18,984,187-21,459,713)x3 | 2.48 | TBX1、CRKL | P | 父源 | DS高风险 | 否 | |
| P19 | 13+1 | 22q11.2(18,648,855-21,461,017)x3 | 2.81 | TBX1、CRKL | P | NT增厚(2.8 mm) | 否 |
| 母体 编号 | 出生时身高/cm | 出生时体重/g | 性别 | 年龄 | 随访结果 |
|---|---|---|---|---|---|
| P4 | 50 | 3 200 | 男 | 6个月 | 未见明显异常 |
| P9 | 49 | 3 300 | 男 | 6岁 | 未见明显异常 |
| P10 | 50 | 3 550 | 男 | 4岁 | 囟门闭合较晚 |
| P11 | 48 | 3 500 | 女 | 6岁 | 未见明显异常 |
| P13 | 50 | 3 100 | 男 | 5岁 | 未见明显异常 |
| P14 | 50 | 3 000 | 男 | 5岁 | 未见明显异常 |
| P15 | 51 | 3 600 | 男 | 28个月 | 未见明显异常 |
| P18 | 50 | 3 900 | 男 | 7个月 | 未见明显异常 |
| 母体 编号 | 出生时身高/cm | 出生时体重/g | 性别 | 年龄 | 随访结果 |
|---|---|---|---|---|---|
| P4 | 50 | 3 200 | 男 | 6个月 | 未见明显异常 |
| P9 | 49 | 3 300 | 男 | 6岁 | 未见明显异常 |
| P10 | 50 | 3 550 | 男 | 4岁 | 囟门闭合较晚 |
| P11 | 48 | 3 500 | 女 | 6岁 | 未见明显异常 |
| P13 | 50 | 3 100 | 男 | 5岁 | 未见明显异常 |
| P14 | 50 | 3 000 | 男 | 5岁 | 未见明显异常 |
| P15 | 51 | 3 600 | 男 | 28个月 | 未见明显异常 |
| P18 | 50 | 3 900 | 男 | 7个月 | 未见明显异常 |
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