Related Experiment Video

Updated: Oct 5, 2026

Microfluidics in Assessing Platelet Function
06:47

Microfluidics in Assessing Platelet Function

Published on: November 8, 2024

[Effects of basic therapy of ischemic heart disease on vascular-platelet hemostasis during myocardial

N A Vorob'eva, E V Nedashkovskiĭ

    Anesteziologiia I Reanimatologiia
    |August 21, 2001
    PubMed

    Insights

    Preoperative therapy with calcium antagonists and aspirin for coronary disease may alter platelet function, potentially leading to bleeding complications during aortocoronary shunting (ACS). Individual patient sensitivity influences these effects, highlighting risks of drug-induced thrombocytopathy.

    Area of Science:

    • Cardiovascular Medicine
    • Hematology
    • Pharmacology

    Background:

    • Coronary artery disease management often involves preoperative medications.
    • Aortocoronary shunting (ACS) is a major cardiac surgical procedure.
    • Perioperative bleeding is a significant complication in cardiac surgery.

    Purpose of the Study:

    • To investigate the impact of preoperative calcium antagonists and aspirin on platelet hemostasis.
    • To assess the role of hemostasis disorders in perioperative bleeding during ACS.
    • To understand how these therapies influence platelet function in ACS patients.

    Main Methods:

    • Analysis of vascular platelet hemostasis in patients undergoing ACS.
    • Evaluation of preoperative therapy regimens including calcium antagonists and aspirin.
    • Assessment of platelet functional activity and its correlation with bleeding events.

    Main Results:

    • Preoperative therapy with calcium antagonists and aspirin can affect platelet functional activity.
    • Individual patient sensitivity to these drugs plays a crucial role in hemostasis changes.
    • Drug-induced thrombocytopathy is a potential risk factor for perioperative hemorrhages during ACS.

    Conclusions:

    • Therapy for coronary disease with calcium antagonists and aspirin requires careful consideration before ACS.
    • Altered platelet hemostasis due to these medications can contribute to pathological hemorrhages.
    • Monitoring platelet function may be important for managing bleeding risks in ACS patients.

    More Related Videos

    Microfluidic Flow Chambers Using Reconstituted Blood to Model Hemostasis and Platelet Transfusion In Vitro10:25

    Microfluidic Flow Chambers Using Reconstituted Blood to Model Hemostasis and Platelet Transfusion In Vitro

    Published on: March 19, 2016

    Delayed Intramyocardial Delivery of Stem Cells after Ischemia Reperfusion Injury in a Murine Model07:50

    Delayed Intramyocardial Delivery of Stem Cells after Ischemia Reperfusion Injury in a Murine Model

    Published on: September 3, 2020

    Related Concept Videos

    Formation of the Platelet Plug01:22

    Formation of the Platelet Plug

    The platelet phase, the second stage of hemostasis, commences around 15-20 seconds after an injury. It follows and overlaps with the vascular phase, during which blood vessels constrict to minimize blood loss.
    As the injured blood vessel contracts, endothelial cells undergo contraction, revealing collagen fibers in the basement membrane and underlying connective tissue. Furthermore, the plasma membrane of endothelial cells becomes adhesive, preparing the site for platelet adhesion. Platelets...
    Antiplatelet Drugs: Prostaglandin Synthesis, P2Y12 and Glycoprotein IIb/IIIa Inhibitors01:20

    Antiplatelet Drugs: Prostaglandin Synthesis, P2Y12 and Glycoprotein IIb/IIIa Inhibitors

    Antiplatelet drugs emerge as frontline defenders against the insidious threat of thromboembolic diseases, where abnormal clots obstruct vital blood vessels. These drugs stand as bulwarks, inhibiting platelet aggregation and clot formation, thereby mitigating the risk of life-threatening conditions like myocardial infarction, coronary artery disease, and thrombotic strokes.
    Prostaglandin synthesis inhibitors, exemplified by the widely known aspirin, wield their power by irreversibly acetylating...
    Clot Retraction and Fibrinolysis01:16

    Clot Retraction and Fibrinolysis

    After a fibrin clot is formed, the next step is clot retraction, a vital process facilitated by platelet contractile proteins, such as actin and myosin. These proteins pull the fibrin strands closer together and condense the clot. This action reduces the size of the clot, creating a smaller, denser structure that effectively seals off the damaged vessel. Clot retraction consolidates the clot and helps with wound healing by bringing the edges of the damaged blood vessel closer together.
    Coronary Artery Disease V: Interprofessional Care01:27

    Coronary Artery Disease V: Interprofessional Care

    Interprofessional care for coronary artery disease includes pharmacological therapy and revascularization procedures.Pharmacological therapy for Coronary Artery Disease (CAD) aims to manage symptoms, prevent complications, and improve patient outcomes through various classes of medications:Antiplatelet Agents:Aspirin and Clopidogrel: These medications inhibit platelet aggregation, preventing blood clots, which is crucial for avoiding heart attacks and strokes. Doctors often prescribe these...
    Introduction to Hemostasis01:05

    Introduction to Hemostasis

    Hemostasis is a complex physiological process that prevents excessive bleeding when a blood vessel is injured. It's crucial for maintaining the integrity of the circulatory system, as it ensures that our blood remains fluid while still within the vascular network and yet clots to prevent blood loss upon vessel injury.
    The three phases of hemostasis involve many clotting factors present in plasma and several substances released by platelets and injured tissue cells. It is a fast, localized, and...
    Acute Coronary Syndrome IV: Interprofessional Care01:28

    Acute Coronary Syndrome IV: Interprofessional Care

    IntroductionThe management of Acute Coronary Syndrome (ACS) aims to minimize myocardial damage, preserve myocardial function, and prevent complications.Initial ManagementInpatient management involves continuous cardiac monitoring, preferably in an ICU, focusing on blood pressure, serum sodium, potassium, and creatinine levels, and urine output. Ongoing pharmacologic management is crucial for stabilizing the patient.Supplemental Oxygen: Administer supplemental oxygen if oxygen saturation is...