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Record W2341760162

Nutcracker syndrome in a 20-year-old patient treated with intravascular stent placement: a case report.

2009· article· en· W2341760162 on OpenAlex
Louis-Olivier Gagnon, Y Ponsot, Andrew Benko, Tu le M

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.

Bibliographic record

VenuePubMed · 2009
Typearticle
Languageen
FieldMedicine
TopicVascular anomalies and interventions
Canadian institutionsUniversité de Sherbrooke
Fundersnot available
KeywordsMedicineNutcracker syndromeSuperior mesenteric arteryRadiologyIntravascular ultrasoundStentPhysical examinationMagnetic resonance imagingFlank painComputed tomography angiographySurgeryAngiographyLeft renal veinInferior vena cava
DOInot available

Abstract

fetched live from OpenAlex

INTRODUCTION: Nutcracker syndrome (NCS) is a rare condition characterized by the entrapment of the left renal vein (LRV) between the superior mesenteric artery (SMA) and the aorta. It was first described in 1950 and the term nutcracker was attributed by de Schepper in 1972. CLINICAL CASE: A 20-year-old female patient was admitted to the urology department with a history of hematuria and left flank pain. Basic hematuria investigation was inconclusive. Further investigation revealed a nutcracker syndrome on retrograde phlebography. Surveillance was the option first chosen. Three years later and after several symptomatic episodes, an intravascular stenting procedure was performed. DISCUSSION: NCS is defined by the compression of the LRV between the SMA and the aorta. Clinical manifestations include left flank pain, hematuria and pelvic congestion syndrome (PCS). Diagnosis is based on history, physical examination, basic lab tests and imaging. Sequence of tests can be composed of Doppler ultrasound (DUS), computed tomography scan (CT scan) or magnetic resonance imaging study (MRI) and retrograde phlebography with pressure gradient to confirm the diagnosis. Management options include surveillance, intravascular and extravascular stenting procedures as well as open procedures. CONCLUSION: NCS is a rare condition that represents a challenge for urologists in terms of accurate diagnosis and proper management.

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)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Case report · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.628
Threshold uncertainty score0.532

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
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 head0.013
GPT teacher head0.218
Teacher spread0.205 · 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