MétaCan
Menu
Back to cohort
Record W4402329044 · doi:10.1016/j.rec.2024.08.003

Thrombocytopenia after transcatheter aortic valve implantation

2024· article· es· W4402329044 on OpenAlexaff
Gabriela Tirado‐Conte, Vassili Panagides, Carlos E. Vergara-Uzcategui, Gabriela Veiga Fernández, Jean Paul Vilchez‐Tschischke, Pedro Cepas‐Guillén, Alejandro Barrero, Luis Marroquín, Julio I. Farjat‐Pasos, Ketina Arslani, Pilar Jiménez‐Quevedo, Iván J. Núñez‐Gil, Hernán Mejía‐Rentería, José M. de la Torre Hernández, José Luis Díez Gil, Ander Regueiro, Ignacio J. Amat‐Santos, Antonio Fernández‐Ortíz, Guering Eid‐Lidt, Ole De Backer, Josep Rodés-Cabau, Luis Nombela‐Franco

Bibliographic record

VenueRevista Española de Cardiología (English Edition) · 2024
Typearticle
Languagees
FieldMedicine
TopicCardiac Valve Diseases and Treatments
Canadian institutionsUniversité Laval
FundersInstituto de Salud Carlos IIIGottfried und Julia Bangerter-Rhyner-StiftungMinisterio de Ciencia e InnovaciónSchweizerische Akademie der Medizinischen WissenschaftenSchweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
KeywordsMedicineCardiologyInternal medicineIncidence (geometry)Aortic valve

Abstract

fetched live from OpenAlex

Thrombocytopenia frequently occurs after transcatheter aortic valve implantation (TAVI) but its impact is poorly understood. We aimed to analyze the incidence, clinical impact, and predictors of acquired thrombocytopenia after TAVI. This retrospective multicenter registry included 3913 patients undergoing TAVI with a baseline platelet count of ≥ 100 *10 9 /L. Acquired thrombocytopenia was defined as a decrease in baseline platelet count of ≥ 50% (early nadir ≤ 3 days and late nadir ≥ 4 days) post-TAVI. The primary endpoint was 30-day all-cause mortality and secondary endpoints were procedural safety and 2-year all-cause mortality. The incidence of acquired thrombocytopenia was 14.8% (early nadir: 61.5%, late nadir: 38.5%). Thirty-day mortality occurred in 112 (3.0%) patients and was significantly higher in those with thrombocytopenia (8.5% vs 2.0%, adjusted OR, 2.3; 95%CI, 1.3-4.2). Procedural safety was lower and 2-year mortality was higher in patients with thrombocytopenia vs those without (52.1 vs 77.0%; P < .001, and 30.2% vs 16.8%; HR, 2.2, 95%IC, 1.3-2.7) and especially in those with late nadir thrombocytopenia (45.8% vs 54.5%; P = .056, and 38.6% vs 23.8%, HR, 2.1; 95%CI, 1.5-2.9). Independent predictors of thrombocytopenia comprised baseline and procedural factors such as body surface area, absence of diabetes, poorer renal function, peripheral vascular disease, nontransfemoral access, vascular complications, type of transcatheter heart valve, and earlier TAVI procedures. Acquired thrombocytopenia was common (15%) after TAVI and was associated with increased short- and mid-term mortality and decreased procedural safety. Moreover, late thrombocytopenia compared with early thrombocytopenia was associated with significantly worse clinical outcomes. Further investigations are needed to elucidate the etiologic mechanisms behind these findings. La trombocitopenia es una complicación frecuente tras el implante percutáneo de válvula aórtica (TAVI). Sin embargo, hay poca información sobre sus causas y sus implicaciones clínicas. El objetivo de este estudio es analizar la incidencia, el impacto clínico y los factores predictores. Registro multicéntrico de 3.913 pacientes con recuento plaquetario basal ≥ 100*10 9 /l sometidos a TAVI. La trombocitopenia adquirida se definió como una reducción del recuento plaquetario ≥ 50% (nadir precoz ≤ 3. er y tardío ≥ 4. o día) tras el TAVI. El objetivo primario fue la mortalidad a 30 días y los objetivos secundarios, la seguridad del procedimiento y mortalidad a 2 años. La incidencia de trombocitopenia fue del 14,8% (nadir precoz: 61,5%, nadir tardío: 38,5%). La mortalidad a los 30 días fue del 3,0%, significativamente mayor en los pacientes con trombocitopenia (el 8,5 frente al 2,0%; OR ajustada = 2,3; IC95%, 1,3-4,2). La ausencia de seguridad del procedimiento y la mortalidad a los 2 años también fueron mayores en los pacientes con trombocitopenia (el 47,9 frente al 33,0%; p < 0,001, y el 30,2 frente al 16,8%; HR = 2,2; IC95%, 1,3-2,7) especialmente en aquellos con nadir tardío (el 54,2 frente al 45,5%, p = 0,056, y el 38,6 frente al 23,8%; HR = 2,1; IC95%, 1,5-2,9). Los predictores independientes de trombocitopenia incluyeron características basales y del procedimiento (área de superficie corporal, peor función renal, ausencia de diabetes, vasculopatía periférica, procedimientos realizados antes de 2015, acceso no transfemoral, complicaciones vasculares y tipo de válvula para TAVI). La trombocitopenia adquirida fue frecuente (15%) tras el TAVI, con mayor mortalidad a corto y medio plazo y menor seguridad del procedimiento. Además, la trombocitopenia tardía en comparación con la temprana se asoció a peores resultados clínicos. Sin embargo, son necesarias investigaciones futuras para dilucidar el mecanismo etiológico de estos hallazgos.

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 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)0.001
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Insufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.111
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.007
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0010.001
Open science0.0000.000
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0010.001

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 head0.009
GPT teacher head0.302
Teacher spread0.292 · 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

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

Study designObservational
Domainnot available
GenreEmpirical

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".

Quick stats

Citations3
Published2024
Admission routes1
Has abstractyes

Explore more

Same venueRevista Española de Cardiología (English Edition)Same topicCardiac Valve Diseases and TreatmentsFrench-language works237,207