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Record W2105708064 · doi:10.1503/cmaj.070352

Teenage pregnancy: trends, contributing factors and the physician's role

2007· article· en· W2105708064 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.
venuePublished in a venue whose home country is Canada.

Bibliographic record

VenueCanadian Medical Association Journal · 2007
Typearticle
Languageen
FieldMedicine
TopicParvovirus B19 Infection Studies
Canadian institutionsDalhousie University
Fundersnot available
KeywordsMedicineImmunosuppressionHemophagocytosisPediatricsMeningoencephalitisEhrlichia chaffeensisInternal medicineImmunologyBone marrowPancytopeniaVirologyTick

Abstract

fetched live from OpenAlex

<h3>Objective:</h3> N/A <h3>Background:</h3> Human Monocytic Ehrlichiosis (HME) can cause multi-organ dysfunction syndrome (MODS) and rarely secondary hemophagocytic lymphohistiocytosis (HLH). Here we present an immunosuppressed patient who developed clinical signs of meningoencephalitis and secondary HLH due to <i>Ehrlichia chaffeensis</i> (<i>E. chaffeensis</i>). <h3>Design/Methods:</h3> N/A <h3>Results:</h3> <h3>CASE:</h3> A 66-year-old man with a history of adult onset stills disease was admitted with fever, rigors, malaise, and worsening mentation for a week. He was on immunosuppression following a renal transplant two weeks before admission. He was started on empiric antibiotics for treatment of meningoencephalitis. Cerebrospinal fluid (CSF) analysis was not performed given severe thrombocytopenia. Electroencephalography revealed generalized slowing with no seizures and imaging of the brain was unremarkable. Pertinent laboratory workup revealed elevated ferritin, triglycerides, lactate dehydrogenase and a bone marrow biopsy demonstrating hemophagocytosis and positive serum <i>E. chaffeensis</i> on polymerase chain reaction (PCR) testing. He was subsequently diagnosed with hemophagocytic lymphohistiocytosis (HLH) secondary to <i>E. chaffeensis</i> in the setting of underlying immunosuppression. He was started on high dose steroids, however he deteriorated clinically requiring mechanical ventilation and pressor support. He was made comfort care per family and eventually passed away on the third week since admission. <h3>Conclusions:</h3> Secondary HLH is often triggered by infection, malignancy or autoimmune disease. HME caused by <i>E. chaffeensis</i> is an uncommon endemic tick-borne infection in certain parts of the United States. It typically causes a mild-moderate illness but can also lead to MODS and rarely secondary HLH. Specific laboratory tests for HME include DNA PCR, acute and convalescent antibody assays. Positive CSF testing is reported in less than 50% of the cases. Doxycycline is the drug of choice for HME. High clinical suspicion and treatment of the infection can be life-saving with an otherwise dismal prognosis of secondary HLH. <b>Disclosure:</b> Dr. Judge has nothing to disclose. Abinayaa Ravichandran has nothing to disclose. Dr. Walsh has nothing to disclose.

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.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.003
metaresearch head score (Gemma)0.003
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.339
Threshold uncertainty score0.810

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0030.003
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0010.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0000.000

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.

Opus teacher head0.007
GPT teacher head0.256
Teacher spread0.248 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it