[작성자:] Sookjin Lee
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7개월 영아의 지속성 열성 경련과 발달 정체: 단순 열성 경련 너머의 SCN1A 및 드라베 증후군(Dravet Syndrome)
🎯 핵심 요약 (Key Highlights) 1. Clinical Presentation (Odyssey) 출생 및 과거력(Past Medical History, PMH)상 특이 소견이 없던 7개월 남아 환자가 미열(Low-grade fever)과 함께 25분간 지속된 전신 강직 간대성 발작(Generalized Tonic-Clonic Seizure, GTCS)으로 응급실을 내원했습니다. 초기 진단은 단순 열성 경련(Simple Febrile Seizure)이었으나, 이후 3개월간 무열성 상태(Afebrile state)에서도 좌우 교대성 반신 간대성 경련(Hemiclonic Seizure)이 재발했습니다. 1차…
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Prolonged Febrile Seizures and Developmental Plateau in a 7-Month-Old Infant: Beyond Simple Febrile Convulsions
🎯[Key Highlights: 3 Takeaways] 1. Clinical Presentation (The “Diagnostic Odyssey”) The patient is a 7-month-old male with no significant prenatal or birth history. He presented to the ER with a generalized tonic-clonic seizure lasting 25 minutes, triggered by a low-grade fever. 2. Phenotypic Features (HPO-based) 3. Genomic Findings & Pathogenicity Genetic testing via a Targeted…
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36개월 여아의 퇴행적 발달 지연과 난치성 뇌전증: MECP2 변이 및 레트 증후군(Rett Syndrome)의 임상적 고찰
🎯 핵심 요약 (Key Highlights) 1. Clinical Presentation (Odyssey) 36개월 여아 환자는 초기 운동 발달은 정상적이었으나, 14개월령부터 두위 성장이 둔화(획득성 소두증)되며 언어 및 기득권 손 기능의 급격한 퇴행을 보였습니다. 특히 손을 쥐어짜거나 씻는 듯한 동작(Hand-washing stereotype)이 관찰되었으며, 약물에 반응하지 않는 난치성 뇌전증이 동반되었습니다. 2. HPO Features (표준 용어 기반) 3. Differential Diagnosis (감별 진단) 4.…
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Progressive Neurodevelopmental Regression and Refractory Epilepsy in a 36-Month-Old Female: A Clinical Correlation
🎯 [Key Highlights: 3 Takeaways] 1. Patient Presentation 2. Phenotypic Features (HPO-based) 3. Differential Diagnosis (The “Why” for Genetic Testing) Before genetic confirmation, this patient’s symptoms often overlap with: 4. Clinical Insight & Diagnostic Bridge In cases of progressive neurodevelopmental regression, clinical observation alone often fails to distinguish between overlapping monogenic disorders. Early identification of…
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Differential Diagnosis of Infantile Hypotonia: A Clinical Guide to Genetic Testing Integration
🎯Key Takeaways for Clinicians Introduction Infantile hypotonia, often referred to as “floppy infant syndrome,” presents a diagnostic challenge for even the most experienced pediatricians and neurologists. With an extensive range of potential etiologies—spanning from central nervous system disorders to peripheral neuromuscular diseases—the path to a definitive diagnosis can be arduous. In an era where early…
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The BEACONS Project: Why 746 Genes are Redefining Newborn Whole Genome Sequencing (WGS)
At a Glance: The BEACONS Project Disclaimer: The BEACONS project is an independent and collaborative research initiative. This article discusses the project in the context of broader industry trends in newborn genomic screening and is intended for informational purposes only. Executive Summary: What is the BEACONS Project? The BEACONS (Building Evidence and Collaboration for Genomics…
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How Much is a DNA Test? A Strategic Guide to Value and Costs
“Is a cheap DNA test always the right choice? Explore the factors that determine costs based on testing scope (WES, WGS) and use our checklist to find the right test for your needs.” When searching for the cost of a DNA test, you will encounter a wide range of prices, from as little as $50…
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Autism Spectrum Disorder: Which Genetic Test Does Your Child Actually Need?
If you’ve discovered that autism can be linked to genetic factors, the next natural question is: “How can I find the specific cause for my child?” With various testing options available, choosing the right one can be overwhelming. This guide simplifies the clinical path to help you secure the most accurate diagnosis and better plan…
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Beyond NIPT: Bridging the 60% Genetic Risk Gap with gNBS
Introduction: The Missing Piece in the NIPT Era Over the last decade, Non-Invasive Prenatal Testing (NIPT) has revolutionized prenatal care. While screening efficacy for major aneuploidies like T13, T18, and T21 now approaches 99%, a significant clinical gap remains. In practice, a vast majority of congenital anomalies are not caused by chromosomal numerical aberrations, but…
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NIPT ‘저위험군’이 간과하는 60%의 위험: de novo 변이와 gNBS
들어가며: NIPT 중심 시장, 우리가 놓치고 있는 것들 지난 10년간 산전 진단 시장은 NIPT(Non-Invasive Prenatal Testing)를 중심으로 비약적인 성장을 거듭해 왔습니다. T13, T18, T21 등 주요 염색체 이배체성(Aneuploidy)에 대한 선별률은 99%에 육박하지만, 정작 임상 현장에서 마주하는 희귀 질환 환아들의 상당수는 염색체 수적 이상이 아닌 단일 유전자 변이(Single Gene Variant)에 기인합니다. 단순히 염색체의 외형적 숫자를 세는…