CustomNext-Cardio

With CustomNext-Cardio, you can choose from up to 167 genes associated with heritable cardiovascular and lipid disorders to create a customized panel that best fits your patient’s needs.
Quick Reference
Test Code 9520
Turnaround Time (TAT) 14-21 days
Number of Genes 167

Ordering Options

We now offer single site analysis (SSA) at no additional cost to family members

following single gene or panel testing* of the first family member (proband) within 90 days of the original Ambry report date.

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*excludes Exome and SNP Array tests

Why Is This Important?

Knowing if your patient has a hereditary cardiovascular disorder can help you determine their future cardiovascular disease risks and guide your medical management recommendations. Key benefits include:

  1. Clarify diagnosis and risk for sudden cardiac arrest or aortic aneurysms/dissections
  2. Target medical management and prevention of cardiac arrest, aortic aneurysms/dissections, and other complications
  3. Adjust management in those with cardiomyopathy due to a specific cardiac genotype, or underlying conditions like Duchenne muscular dystrophy and Danon disease
  4. May identify the cause of a sudden unexplained death after a normal autopsy
  5. Offer family members genetic testing (for a familial mutation) and implement medical surveillance to only those that need it
  6. Reduce healthcare costs, resources, and anxiety for families

When To Consider Testing

  • Your patient's complex personal and and/or family history requires a unique panel of genes to assess (not found in an existing panel)
  • You/your patient would like to learn about fewer genes than those currently found on existing panels
  • You/your patient would like to learn about more genes than those currently found on existing panels
  • Personal and/or family history suggestive of rare lipid disorders

Mutation Detection Rate

The CustomNext-Cardio test is designed and validated to be capable of detecting ~99% of described mutations in the 167 orderable genes on the test (analytical sensitivity). The clinical sensitivity of the CustomNext-Cardio test may vary widely according to the specific clinical and family history.

Test Description

CustomNext-Cardio is a customizable screen of up to 167 genes associated with inherited cardiovascular diseases. Genomic deoxyribonucleic acid (gDNA) is isolated from the patient’s specimen using a standardized methodology and quantified. Sequence enrichment of the targeted coding exons and adjacent intronic nucleotides is carried out by a bait-capture methodology using long biotinylated oligonucleotide probes, and is followed by polymerase chain reaction (PCR) and Next-Generation sequencing. Additional Sanger sequencing is performed for any regions missing or with insufficient read depth coverage for reliable heterozygous variant detection. Reportable small insertions and deletions, potentially homozygous variants, variants in regions complicated by pseudogene interference, and single nucleotide variant calls not satisfying 100x depth of coverage and 40% het ratio thresholds are verified by Sanger sequencing (Mu W et al. J Mol Diagn. 2016 Oct 4). All selected genes are evaluated by NGS or Sanger sequencing of all coding domains, and well into the flanking 5’ and 3’ ends of all the introns and untranslated regions. Gross deletion/duplication analysis is performed for all genes (excluding CBS and TNXB exons 32-44) using a custom pipeline based on read-depth from NGS data followed by a confirmatory orthogonal method, as needed. Exon-level resolution may not be achieved for every gene.

 

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