Related Experiment Video

Updated: May 14, 2026

The WATCHMAN Left Atrial Appendage Closure Device for Atrial Fibrillation
23:33

The WATCHMAN Left Atrial Appendage Closure Device for Atrial Fibrillation

Published on: February 28, 2012

Continuing aspirin causes higher drainage even under full protection with antifibrinolytics

Adil A M Al-Lawati1, Venkatraman Muthuswamy

  • 1Department of Cardiothoracic Surgery, Royal Hospital, Muscat, Oman.

The Thoracic and Cardiovascular Surgeon
|January 25, 2013
PubMed

Insights

Continuing low-dose aspirin before coronary artery bypass grafting (CABG) surgery increases blood loss but does not negatively impact patient outcomes. This finding is crucial for managing antiplatelet therapy in cardiac surgery patients.

Area of Science:

  • Cardiology
  • Cardiac Surgery
  • Pharmacology

Background:

  • Managing antiplatelet therapy before coronary artery bypass grafting (CABG) is critical.
  • Aspirin is commonly used for cardiovascular prevention, but its continuation before surgery poses a dilemma regarding bleeding risk.

Purpose of the Study:

  • To evaluate the effect of continuing aspirin therapy on bleeding complications after CABG.
  • To determine if perioperative aspirin use impacts patient outcomes following cardiac surgery.

Main Methods:

  • A prospective study of 109 patients undergoing primary, on-pump CABG.
  • Patients were divided into two groups: one continuing aspirin (81 mg daily) within 7 days of surgery, and another discontinuing it more than 7 days prior.
  • All patients received antifibrinolytic agents; preoperative characteristics were identical between groups.

Main Results:

  • The group continuing aspirin showed significantly more postoperative drainage and consumed more blood products in the first 12 hours.
  • Despite increased initial blood loss, no significant differences were observed in re-exploration rates, transfusion requirements, hemoglobin/platelet count drops, or length of stay.

Conclusions:

  • Continuing low-dose aspirin before CABG is associated with increased postoperative blood loss.
  • This increased bleeding does not appear to be clinically harmful, as it did not affect patient progress or require more transfusions.
Abstract

Related Concept Videos

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...
Venous Thrombosis III: Interprofessional Care01:29

Venous Thrombosis III: Interprofessional Care

Venous thrombosis requires effective prevention and treatment strategies to improve patient outcomes and reduce potential complications.Prevention StrategiesHealthcare providers must prioritize preventing venous thromboembolism (VTE) for all adult patients upon admission. Interventions depend on bleeding and thrombosis risk, medical history, current medications, diagnoses, planned procedures, and patient preferences. Patients on bed rest should change positions every two hours and, if not...
Drug Accumulation During Multiple Dosing: Intermittent IV Infusions01:24

Drug Accumulation During Multiple Dosing: Intermittent IV Infusions

Intermittent intravenous (IV) infusion is a method of drug administration where medications are delivered over short infusion periods followed by intervals of no drug delivery. This approach helps to prevent sustained high drug concentrations in the bloodstream, reducing the risk of adverse effects associated with prolonged exposure. Unlike continuous infusion, steady-state concentrations may not be achieved during a single dosing cycle but can be reached through repeated...
Anticoagulant Drugs: Low-Molecular-Weight Heparins01:30

Anticoagulant Drugs: Low-Molecular-Weight Heparins

Hemostasis is a crucial process that prevents excessive blood loss from damaged blood vessels. It involves various mechanisms such as vasoconstriction, platelet adhesion and activation, and fibrin formation. The importance of each mechanism depends on the type of vessel injury. In contrast, thrombosis is the abnormal formation of a blood clot within the blood vessels, leading to potential complications if the clot obstructs blood flow. Thrombosis can be caused by increased coagulability of the...
Venous Thrombosis IV: Nursing Management01:30

Venous Thrombosis IV: Nursing Management

Nursing management begins with a thorough assessment of the patient's health history. Key factors include trauma to veins, peripherally inserted central catheters, varicose veins, recent pregnancy or childbirth, surgery, bacteremia, prolonged bed rest, atrial fibrillation, COPD, heart failure, cancer, coagulation disorders, myocardial infarction, spinal cord injury, stroke, prolonged travel, recent bone fractures, and dehydration. Review medication intake, particularly oral contraceptives,...
Peripheral Artery Disease V: Postoperative Nursing Management01:23

Peripheral Artery Disease V: Postoperative Nursing Management

During the postoperative period, it is crucial to focus on maintaining circulation, identifying and managing potential complications, and planning for discharge.Nursing AssessmentVital signs monitoring: Regularly monitor vital signs, including blood pressure, heart rate, respiratory rate, and temperature, to detect early signs of complications such as bleeding and infection.Circulation assessment: Monitor pulses, perform Doppler assessments, and check capillary refill, color, temperature, and...