Articles producció científicaCiències Mèdiques Bàsiques

Ventilator-Associated Pneumonia (VAP) in Neurocritical Patients: The Hidden Dialog of Brain and Infection

  • Dades identificatives

    Identificador:  imarina:9475750
    Autors:  Rodriguez, Alejandro; Claverias, Laura; Martin-Loeches, Ignacio; Bertomeu, Frederic Gomez; Pico Plana, Ester; Rosich, Sara; Blazquez, Vanessa; Cespedes Torrez, Dennis H; Lau, Ruth; Bodi, Maria
    Resum:
    Patients with multiple traumas, particularly those with traumatic brain injury (TBI), are among the most challenging cases in intensive care medicine. Although early orotracheal intubation and invasive mechanical ventilation (IMV) are essential for airway protection and neurological treatment, they significantly increase the risk of lower respiratory tract infection (LRTI), including ventilator-associated pneumonia (VAP) and ventilator-associated tracheobronchitis (VAT). These complications are particularly prevalent among neurocritical patients due to the distinctive interaction between the brain, lungs and immune system. This narrative review examines the current evidence on the mechanisms underlying the brain-lung-immune axis; the diagnostic challenges in identifying respiratory infections in mechanically ventilated TBI patients; and optimal approaches to empirical or quasi-targeted antimicrobial therapy based on diagnostic algorithms and rapid molecular techniques. Severe TBI induces neurogenic inflammation, autonomic dysregulation, and immunosuppression, thereby increasing susceptibility to pulmonary infections. The 'triple hit hypothesis' best explains this cascade: sympathetic hyperactivity (first hit), iatrogenic ventilatory injury (second hit), and intestinal dysbiosis with systemic immune dysregulation (third hit). VAP diagnosis remains challenging due to the lack of universal criteria, the overlap with systemic inflammatory response syndrome, and the low specificity of radiological and clinical signs. VAT may represent an intermediate stage within a continuum of ventilator-associated infection. Recent evidence supports the selective use of nebulized antibiotics for VAT, advocating an individualized, locally adapted empirical approach to VAP treatment. Syndrom
  • Altres:

    Autor segons l'article: Rodriguez, Alejandro; Claverias, Laura; Martin-Loeches, Ignacio; Bertomeu, Frederic Gomez; Pico Plana, Ester; Rosich, Sara; Blazquez, Vanessa; Cespedes Torrez, Dennis H; Lau, Ruth; Bodi, Maria
    Departament: Ciències Mèdiques Bàsiques
    Autor/s de la URV: Bodi Saera, Maria Amparo / Gómez Bertomeu, Frederic-Francesc / Rodríguez Oviedo, Alejandro Hugo
    Paraules clau: Adverse device effect; Algorithm; Antibiotic agent; Antimicrobial activity; Antimicrobial therapy; Biological marker; Cerebrovascular accident; Clinical assessment; Complication; Cross-talk axis; Cuff pressure; Diagnosis; Diagnostic accuracy; Diffuse brain injury; Drug therapy; Dysbiosis; Early-onset; Endotracheal intubation; Etiology; Functional immunosuppression; Human; Human tissue; Immune deficiency; Immune dysregulation; Immunosuppressive treatment; Intensive-care-unit; Invasive ventilation; Lower respiratory tract infection; Lung infection; Major clinical study; Management; Multicenter; Multiple trauma; Neural therapy; Neurogenic inflammation; Prevention; Procalcitonin; Prognosis; Respiratory tract infection; Review; Risk factor; Risk factors; Risk-factors; Stroke; Systemic inflammatory response syndrome; Tracheobronchitis; Trauma; Traumatic brain injury; Ventilator; Ventilator associated pneumonia; Ventilator-associated pneumonia
    Resum: Patients with multiple traumas, particularly those with traumatic brain injury (TBI), are among the most challenging cases in intensive care medicine. Although early orotracheal intubation and invasive mechanical ventilation (IMV) are essential for airway protection and neurological treatment, they significantly increase the risk of lower respiratory tract infection (LRTI), including ventilator-associated pneumonia (VAP) and ventilator-associated tracheobronchitis (VAT). These complications are particularly prevalent among neurocritical patients due to the distinctive interaction between the brain, lungs and immune system. This narrative review examines the current evidence on the mechanisms underlying the brain-lung-immune axis; the diagnostic challenges in identifying respiratory infections in mechanically ventilated TBI patients; and optimal approaches to empirical or quasi-targeted antimicrobial therapy based on diagnostic algorithms and rapid molecular techniques. Severe TBI induces neurogenic inflammation, autonomic dysregulation, and immunosuppression, thereby increasing susceptibility to pulmonary infections. The 'triple hit hypothesis' best explains this cascade: sympathetic hyperactivity (first hit), iatrogenic ventilatory injury (second hit), and intestinal dysbiosis with systemic immune dysregulation (third hit). VAP diagnosis remains challenging due to the lack of universal criteria, the overlap with systemic inflammatory response syndrome, and the low specificity of radiological and clinical signs. VAT may represent an intermediate stage within a continuum of ventilator-associated infection. Recent evidence supports the selective use of nebulized antibiotics for VAT, advocating an individualized, locally adapted empirical approach to VAP treatment. Syndromic molecular panels can accelerate the identification of pathogens, enabling the earlier and more appropriate selection of antimicrobials and improving outcomes while preserving stewardship. Understanding the brain-lung-immune axis and improving diagnostic accuracy are essential to enhancing the treatment of respiratory infections in neurocritical care. Integrating clinical assessment, biomarkers and rapid microbiological testing enables timely, targeted therapy and reduces the misuse of antimicrobials.
    Àrees temàtiques: Biochemistry & molecular biology; Biochemistry, genetics and molecular biology (all); Biochemistry, genetics and molecular biology (miscellaneous); Ciencias sociales; General biochemistry,genetics and molecular biology; Medicine (miscellaneous); Medicine, research & experimental; Pharmacology & pharmacy
    Adreça de correu electrònic de l'autor: mariaamparo.bodi@urv.cat; mariaamparo.bodi@urv.cat; alejandrohugo.rodriguez@urv.cat; frederic-francesc.gomez@urv.cat
    Data d'alta del registre: 2026-02-13
    Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
    Enllaç font original: https://www.mdpi.com/2227-9059/13/12/3112
    Referència a l'article segons font original: Biomedicines. 13 (12): 3112-
    Referència de l'ítem segons les normes APA: Rodriguez, Alejandro; Claverias, Laura; Martin-Loeches, Ignacio; Bertomeu, Frederic Gomez; Pico Plana, Ester; Rosich, Sara; Blazquez, Vanessa; Cespede (2025). Ventilator-Associated Pneumonia (VAP) in Neurocritical Patients: The Hidden Dialog of Brain and Infection. Biomedicines, 13(12), 3112-. DOI: 10.3390/biomedicines13123112
    URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
    DOI de l'article: 10.3390/biomedicines13123112
    Entitat: Universitat Rovira i Virgili
    Any de publicació de la revista: 2025-12-17
    Tipus de publicació: Journal Publications
  • Paraules clau:

    Biochemistry & Molecular Biology,Biochemistry, Genetics and Molecular Biology (Miscellaneous),Medicine (Miscellaneous),Medicine, Research & Experimental,Pharmacology & Pharmacy
    Adverse device effect
    Algorithm
    Antibiotic agent
    Antimicrobial activity
    Antimicrobial therapy
    Biological marker
    Cerebrovascular accident
    Clinical assessment
    Complication
    Cross-talk axis
    Cuff pressure
    Diagnosis
    Diagnostic accuracy
    Diffuse brain injury
    Drug therapy
    Dysbiosis
    Early-onset
    Endotracheal intubation
    Etiology
    Functional immunosuppression
    Human
    Human tissue
    Immune deficiency
    Immune dysregulation
    Immunosuppressive treatment
    Intensive-care-unit
    Invasive ventilation
    Lower respiratory tract infection
    Lung infection
    Major clinical study
    Management
    Multicenter
    Multiple trauma
    Neural therapy
    Neurogenic inflammation
    Prevention
    Procalcitonin
    Prognosis
    Respiratory tract infection
    Review
    Risk factor
    Risk factors
    Risk-factors
    Stroke
    Systemic inflammatory response syndrome
    Tracheobronchitis
    Trauma
    Traumatic brain injury
    Ventilator
    Ventilator associated pneumonia
    Ventilator-associated pneumonia
    Biochemistry & molecular biology
    Biochemistry, genetics and molecular biology (all)
    Biochemistry, genetics and molecular biology (miscellaneous)
    Ciencias sociales
    General biochemistry,genetics and molecular biology
    Medicine (miscellaneous)
    Medicine, research & experimental
    Pharmacology & pharmacy
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