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Related Experiment Videos

Long-term alterations in monocyte function after elective cardiac surgery.

M Zawadka1, J Wahome2, H Oszkiel3

  • 12nd Department of Anaesthesiology and Intensive Care, Medical University of Warsaw, Warsaw, Poland.

Anaesthesia
|April 14, 2017
PubMed
Summary

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This summary is machine-generated.

Severe surgical stress can impair monocyte adaptability, a key factor in immune recovery. This lasting immunological defect, observed even after patients seemingly recover, impacts long-term health post-surgery.

Area of Science:

  • Immunology
  • Surgical Stress Response
  • Monocyte Biology

Background:

  • Optimal immunological homoeostasis is crucial for postoperative recovery.
  • Monocyte functional adaptability influences host response, immunostasis, and long-term health.
  • Monocytes play a pivotal role in adjusting the host's response to severe stress.

Purpose of the Study:

  • To longitudinally analyze monocyte functional adaptability in patients undergoing heart surgery with cardiopulmonary bypass.
  • To investigate the characteristics of peripheral blood monocyte plasticity in vitro before and three months after surgery.
  • To identify potential mechanisms and consequences of altered monocyte plasticity post-surgery.

Main Methods:

  • Longitudinal analysis of monocyte functional adaptability in 20 patients undergoing heart surgery.
Keywords:
cardiopulmonary bypassmonocytemonocyte colony-stimulating factorpostoperative recoverysystemic inflammatory response syndrome

Related Experiment Videos

  • In vitro assessment of monocyte differentiation into dendritic cells before and three months after cardiopulmonary bypass.
  • Measurement of macrophage colony-stimulating factor (M-CSF) levels and use of neutralizing antibodies.
  • Analysis of serum C-reactive protein and cytomegalovirus IgG antibody titres.

    • Main Results:

    • Approximately 30% of subjects exhibited diminished monocyte plasticity three months post-surgery.
    • Reduced monocyte differentiation into dendritic cells was linked to M-CSF overproduction.
    • Neutralization of M-CSF corrected the monocyte differentiation defect in vitro.
    • Patients with reduced plasticity showed elevated C-reactive protein and cytomegalovirus IgG titres.

    Conclusions:

    • Severe surgical stress, exemplified by heart surgery with cardiopulmonary bypass, can induce a lasting immunological defect.
    • Diminished monocyte functional plasticity is a key feature of this defect, associated with M-CSF overproduction and immunosuppressive traits.
    • This study highlights a persistent immunological impairment in patients who have seemingly recovered from major surgery.