Philippe Guerci: HIT after Cardiac Surgery – Are We Using the Right Tools?
Philippe Guerci, Professor at CHRU de Nancy, shared a post on LinkedIn about a recent article he and his colleagues co-authored, published in Journal of Cardiothoracic and Vascular Anesthesia, adding:
“New publication – HIT after cardiac surgery: are we using the right tools?
Work led by Thomas Klein, bringing together a highly talented team of hematobiologists (Philippe Savard, Toussaint Hacquard Marie, Emmanuel de Maistre, Thomas Lecompte), clinicians (Sandrine Grosjean, Guillaume Soyer) and methodologists-biostatisticians (Cedric Baumann, Amandine Luc, Elodie Jeanbert) across two expert centers.
Congratulations to all.
This bicentric study (Nancy 🇫🇷 and Dijon 🇫🇷) provides one of the most robust comparative evaluations to date of clinical scores for heparin-induced thrombocytopenia (HIT) in the challenging context of cardiac surgery with CPB.
Key findings:
- No clear winner among the 4 major HIT scores (4Ts, HEP, CPB, GFHT)
- All scores show excellent rule-out performance (NPV nearly 94–97%)
- Limited positive predictive value – caution against overdiagnosis
- Identification of a typical biphasic platelet pattern (early drop and delayed nadir nearly day 10) as a strong clinical signal
- The HEP score trends toward best overall performance, but without statistical superiority
Clinical message:
- In post-cardiac surgery patients, HIT scores are rule-out tools, not rule-in tools
- Diagnostic strategies must remain multimodal, combining clinical expertise with advanced functional assays
- This work highlights the strength of close collaboration between anesthesiologists, intensivists, and hematobiologists, essential to tackle complex perioperative coagulation disorders.
A great example of how bicenter collaboration enhances external validity and clinical relevance.”
Title: Evaluating Four HIT Prediction Scores After Cardiac Surgery With Cardiopulmonary Bypass: A Comparative Study
Authors: Guillaume Soyer, Philippe Savard, Philippe Guerci, Marie Toussaint Hacquard, Elodie Jeanbert, Amandine Luc, Cédric Baumann, Sandrine Grosjean, Emmanuel de Maistre, Thomas Lecompte, Thomas Klein

Stay updated on all scientific advances with Hemostasis Today.
-
May 12, 2026, 16:46Tagreed Alkaltham: Why Apheresis Matters in Modern Transfusion Medicine
-
May 12, 2026, 16:37Reinhold Kreutz: Cardiovascular Burden in Acute Intermittent Porphyria Needs Greater Awareness
-
May 12, 2026, 16:33Pablo Corral: The Truth About Very Low LDL-Cholesterol
-
May 12, 2026, 16:24Mildred Lundgren: We Must Talk About the Invisible Causes of Stroke
-
May 12, 2026, 16:17Irene Scala: The Sex Disparities In Access to Acute Stroke Treatments In Italy
-
May 12, 2026, 16:04May Nour: UCLA Health Mobile Stroke Unit Becomes The 1st In The World to Perform mCTA In the Field
-
May 12, 2026, 15:57Leonardo Roever: Prognostic Impact of Lipoprotein(a) and CAR in Elderly Acute Ischemic Stroke Patients
-
May 12, 2026, 15:54Bruno Pougault: Prioritizing Laboratory Tests in Resource-Limited Emergency Care
-
May 12, 2026, 15:37Jennifer Holter Chakrabarty: Supporting the Next Generation of Hematology Researchers