Abstract:
INTRODUCTION:The advent of chromosome microarray analysis (CMA) for evaluation of patients with multiple congenital anomalies has made it possible to define chromosomal imbalances with greater precision and resolutions significantly smaller than possible by standard G-banded chromosome analysis. We describe two patients with novel chromosomal anomalies involving chromosome 22q13, a locus also associated with Phelan-McDermid syndrome (PMS). OBJECTIVE:We aim to characterize the novel phenotypic and genotypic findings of two patients with 22q13 microdeletions, distinct from PMS, comparing and contrasting with features of PMS. RESULTS:Case 1 is a 4-year-old boy with global developmental delay, esotropia, moderate aortic root dilation, genu valgum, and in-toeing gait. MRI brain for evaluation of neonatal hypotonia revealed a left cerebellopontine angle arachnoid cyst. He referred on newborn hearing screening, and diagnostic auditory brainstem response (ABR) showed left profound retrocochlear hearing loss. Surgical intervention for the arachnoid cyst was deferred, with spontaneous resolution at age two years without hearing recovery. CMA revealed a novel, de novo 5.1 Mb microdeletion of 22q13.31q13.33 not involving SHANK3, a gene typically deleted in PMS. Case 2 is a 6-year-old girl with some features also seen in patients with PMS but also several atypical features. She has a complex chromosomal rearrangement including a 5.3 Mb 22q13 microdeletion (not including SHANK3) and de novo 2.1 Mb gain of 22q11. CONCLUSION:As diagnostic sensitivity improves, smaller chromosomal imbalances will be detectable related to milder or different phenotypes. We present two patients with novel deletions of chromosome 22q13 associated with multiple congenital anomalies and features distinct from PMS.
journal_name
Int J Pediatr Otorhinolaryngoljournal_title
International journal of pediatric otorhinolaryngologyauthors
Ha JF,Ahmad A,Lesperance MMdoi
10.1016/j.ijporl.2016.12.008subject
Has Abstractpub_date
2017-04-01 00:00:00pages
121-126eissn
0165-5876issn
1872-8464pii
S0165-5876(16)30444-Xjournal_volume
95pub_type
杂志文章abstract:OBJECTIVES:The current study aimed to compare the auditory interference control of participants with Learning Disability (LD) to a control group on two versions of an auditory Stroop task. METHODS:A group of eight children with LD (clinical group) and another group of eight typically developing children (control group...
journal_title:International journal of pediatric otorhinolaryngology
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abstract:BACKGROUND AND AIM:Inner ear anomalies have been reported in approximately 30% of children with early onset deafness. Identification of causative genetic factors in a large proportion of these patients was not successful. Mutations in the SLC26A4 gene have been detected in individuals with enlarged vestibular aqueduct ...
journal_title:International journal of pediatric otorhinolaryngology
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abstract::Bilateral tension pneumothorax complicating high-frequency jet injection ventilation during rigid open bronchoscopy for foreign body removal in a 3-year-old child is reported. Subcutaneous emphysema, bradycardia and low voltage of the QRS complex were the presenting symptoms. Disparition of heart dullness by percussio...
journal_title:International journal of pediatric otorhinolaryngology
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abstract:OBJECTIVES:Early diagnosis of congenital hearing loss is fundamental to minimize the negative consequences on the speech development. To lower the age at diagnosis and at intervention in hearing impaired children, not only universal newborn hearing screening (NHS) but also tracking is considered essential. The aim of t...
journal_title:International journal of pediatric otorhinolaryngology
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journal_title:International journal of pediatric otorhinolaryngology
pub_type: 临床试验,杂志文章
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abstract:OBJECTIVES:Silymarin is a plant extract with strong antioxidant properties in addition to anti-inflammatory and anticarcinogenic actions. The aim of this study was to investigate the potential preventive effect of silymarin on cisplatin ototoxicity in an auditory cell line, HEI-OC1 cells. METHODS:Cultured HEI-OC1 cell...
journal_title:International journal of pediatric otorhinolaryngology
pub_type: 杂志文章
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journal_title:International journal of pediatric otorhinolaryngology
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journal_title:International journal of pediatric otorhinolaryngology
pub_type: 杂志文章,meta分析,评审
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pub_type: 杂志文章,评审
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更新日期:2012-05-01 00:00:00
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pub_type: 杂志文章,随机对照试验
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更新日期:2013-11-01 00:00:00
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更新日期:2013-02-01 00:00:00
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pub_type: 杂志文章,评审
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更新日期:2011-12-01 00:00:00
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pub_type: 杂志文章
doi:10.1016/s0165-5876(03)00093-4
更新日期:2003-07-01 00:00:00
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journal_title:International journal of pediatric otorhinolaryngology
pub_type: 杂志文章,评审
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更新日期:2015-06-01 00:00:00
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journal_title:International journal of pediatric otorhinolaryngology
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更新日期:2013-09-01 00:00:00
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更新日期:2008-10-01 00:00:00
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journal_title:International journal of pediatric otorhinolaryngology
pub_type: 临床试验,杂志文章
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pub_type: 杂志文章
doi:10.1016/j.ijporl.2013.05.024
更新日期:2013-08-01 00:00:00
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更新日期:2017-01-01 00:00:00
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更新日期:2012-06-01 00:00:00
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journal_title:International journal of pediatric otorhinolaryngology
pub_type: 杂志文章,评审
doi:10.1016/j.ijporl.2006.07.011
更新日期:2006-12-01 00:00:00
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更新日期:2016-09-01 00:00:00
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journal_title:International journal of pediatric otorhinolaryngology
pub_type: 杂志文章
doi:10.1016/j.ijporl.2015.05.033
更新日期:2015-08-01 00:00:00
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更新日期:2021-01-01 00:00:00