Advancing Precision Diagnosis through Whole Genome Sequencing

This document is a technical report that discusses the advancements in precision diagnosis facilitated by whole genome sequencing (WGS). It outlines the limitations of traditional genetic testing methods, which typically assess specific types of molecular variants and often leave patients with complex phenotypes undiagnosed. The report summarizes the experience of Baylor Genetics in utilizing WGS as a first-tier diagnostic test capable of detecting a wide spectrum of variant types. The methods section describes a retrospective evaluation of WGS results, focusing on the types of variants reported along with demographic data and clinical findings. The results affirm the utility of WGS in diagnosing patients with hard-to-diagnose conditions, emphasizing its role in improving patient outcomes and reducing the need for multiple testing rounds. The report also presents data showing that nearly 30% of cases with significant WGS findings would not have been identified through traditional assays focused solely on single nucleotide variations and small insertions/deletions.