<scp><i>PRKAG2</i></scp>‐Related Lethal Congenital Glycogen Storage Disease of the Heart as Rare Cause of Fetal Hydrops With Bradycardia and Cardiomyopathy: Clinical Report and Literature Review
Bibliographic record
Abstract
Nonimmune foetal hydrops is a prenatal condition associated with significant perinatal mortality. It has so far been associated with over 200 chromosomal and monogenic conditions, most frequently chromosomal aneuploidies and RASopathies. Thorough clinical phenotyping and genetic evaluation are essential to determine the underlying etiology of this clinical entity and guide obstetrical and postnatal management. In this report, we describe the prenatal presentation and postnatal outcome of a pregnancy with Lethal Congenital Glycogen Storage Disease of the Heart, a rare autosomal dominant non lysosomal cardiac glycogenosis caused by a novel de novo likely pathogenic variant in the Protein Kinase AMP-Activated Non-Catalytic Subunit Gamma 2 (PRKAG2) gene, [NM_016203.3:c.1150A > G, p.(Arg384Gly)]. To this day, only six other molecularly confirmed prenatal presentations of this condition have been reported. This clinical report adds to the knowledge on the prenatal features, clinical evolution, molecular diagnosis and pathological findings of this disorder and underlines the clinical utility of comprehensive molecular testing in the investigation of nonimmune foetal hydrops and fetal cardiomyopathy.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.004 | 0.004 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.003 | 0.002 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".