Related Experiment Video

Updated: Jun 8, 2026

An Experimental Paradigm for the Prediction of Post-Operative Pain (PPOP)
14:56

An Experimental Paradigm for the Prediction of Post-Operative Pain (PPOP)

Published on: January 27, 2010

B-type natriuretic peptide is predictive of postoperative events in orthopedic surgery

Humberto Villacorta Junior1, Isabela Simões de Castro, Marise Godinho

  • 1Universidade Federal Fluminense, Niterói, Brazil. hvillacorta@cardiol.br

Arquivos Brasileiros De Cardiologia
|September 22, 2010
PubMed

Insights

B-type natriuretic peptide (BNP) effectively predicts postoperative cardiac complications in orthopedic surgery patients. This biomarker is more reliable than traditional assessments for identifying patients at risk of cardiac events following these procedures.

Area of Science:

  • Cardiology
  • Orthopedic Surgery
  • Biomarker Research

Background:

  • Clinical assessment alone is insufficient for predicting postoperative cardiac complications.
  • B-type natriuretic peptide (BNP) is a known prognostic marker in heart failure.
  • The predictive value of BNP in orthopedic surgery patients remained uninvestigated.

Purpose of the Study:

  • To evaluate B-type natriuretic peptide (BNP) as a predictor of cardiac complications after orthopedic surgery.
  • To compare the predictive accuracy of BNP against traditional clinical assessments.

Main Methods:

  • Prospective evaluation of 208 patients undergoing hip or knee arthroplasty or femur fracture repair.
  • Preoperative clinical assessment, American Society of Anesthesiologists (ASA) classification, and BNP measurement.
  • Multivariate logistic regression analysis to determine the predictive value of BNP for postoperative cardiac events.

Main Results:

  • 17 patients (8.0%) experienced cardiac events.
  • Median BNP levels were significantly higher in patients with cardiac events (93 vs 26.6 pg/mL, p=0.0001).
  • BNP was the primary independent predictor of events (p=0.01), with an AUC of 83.0% for a cutoff of 60 pg/mL.

Conclusions:

  • B-type natriuretic peptide (BNP) serves as an independent predictor of postoperative cardiac events in orthopedic surgery.
  • BNP offers superior predictive value compared to ASA classification for cardiac complications in this patient group.
Abstract

More Related Videos

Murine Model of Thoracic Aortic Dissection Induced by Oral β-Aminopropionitrile and Subcutaneous Angiotensin II Infusion05:31

Murine Model of Thoracic Aortic Dissection Induced by Oral β-Aminopropionitrile and Subcutaneous Angiotensin II Infusion

Published on: May 16, 2025

Related Concept Videos

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...
Aneurysm IV: Nursing Management01:22

Aneurysm IV: Nursing Management

Vigilant monitoring for aneurysm rupture is essential for patients undergoing aortic surgery.Preoperative Nursing ManagementContinuously monitor the patient for manifestations of aneurysm rupture, such as pallor, weakness, tachycardia, hypotension, abdominal, back, groin, or periumbilical pain, changes in consciousness, and a pulsating abdominal mass. Regularly assess the patient's peripheral pulses.Instruct the patient to consume a clear liquid diet the day before surgery and administer...
Cardiomyopathy VII: Pre and Post Operative Nursing Management01:28

Cardiomyopathy VII: Pre and Post Operative Nursing Management

Patients with hypertrophic cardiomyopathy (HCM) and left ventricular outflow tract (LVOT) obstruction who remain symptomatic despite optimal medical therapy may undergo a septal myectomy (Morrow procedure). This procedure involves excising a portion of the hypertrophied septum below the aortic valve using a heart-lung machine to improve blood flow through the LVOT. Effective preoperative and postoperative nursing management ensures successful patient outcomes, minimizes complications, and...
Blood Studies for Cardiovascular System II: CRP, Hcy, and Cardiac Natriuretic Peptide Markers01:19

Blood Studies for Cardiovascular System II: CRP, Hcy, and Cardiac Natriuretic Peptide Markers

Cardiac biomarkers are critical in diagnosing, prognosing, and managing cardiovascular diseases. Routine measurement of specific biomarkers such as B-type natriuretic peptide (BNP), C-reactive protein (CRP), and homocysteine (Hcy) is common practice in clinical settings to evaluate heart function and predict cardiovascular events.
These markers indicate stress or strain on the heart muscle:
Natriuretic Peptides (BNP)
Cardiac myocytes produce these hormones in response to ventricular stretching...
Transducer Mechanism: Enzyme-Linked Receptors01:27

Transducer Mechanism: Enzyme-Linked Receptors

Enzyme-linked receptors are cell-surface receptors acting as an enzyme or associating with an enzyme intracellularly. They make excellent drug targets. Drugs can bind to the extracellular ligand-binding domain or directly affect their enzymatic domain and alter their activity.
Major types that are helpful drug targets include: