Publications by authors named "Giacomo Grasselli"

Background: Lung transplant (LUTX) candidates have subclinical right ventricular (RV) dysfunction, which has not yet been assessed by speckle-tracking echocardiography (STE)-derived RV free-wall longitudinal strain (RVFWLS). To evaluate the prevalence of RV dysfunction by RVFWLS and its relationship with conventional RV echocardiographic indexes in LUTX candidates.

Methods: In a single-center prospective observational cohort study, from January 2021 to March 2023 consecutive LUTX candidates underwent cardiac catheterization, radionuclide ventriculography, standard and STE.

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Background: Prone positioning improves oxygenation in adults with acute respiratory distress syndrome (ARDS) and has been extensively applied in intensive care units (ICU) during the COVID-19 pandemic. Although some complications due to the manoeuvre are well known, brachial plexus injury after prone positioning is reported as a rare complication and the phenomenon could be either very rare or underestimated.

Aim: This study aimed to evaluate the effect of swimmer position during prone ventilation on the onset of brachial plexus injury in patients admitted to ICU for ARDS.

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Background: Transpulmonary pressure is the effective pressure across the lung parenchyma and has been proposed as a guide for mechanical ventilation. The pleural pressure is challenging to directly measure in clinical setting and esophageal manometry using esophageal balloon catheters was suggested for estimation. However, the accuracy of using esophageal pressure to estimate pleural pressure is debated due to variability in the mechanical properties of respiratory system, esophagus and esophageal catheter.

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Article Synopsis
  • The study aimed to compare the effects of personalized positive end-expiratory pressure (PEEP) versus a standard low PEEP/FiO2 table on patients with acute respiratory distress syndrome (ARDS) undergoing pressure support ventilation (PSV).
  • Researchers conducted a cross-over randomized trial with 30 ARDS patients, measuring how different PEEP settings affected lung mechanics and patient comfort.
  • Results showed that the personalized PEEP significantly improved lung function, reduced respiratory effort, and did not lead to lung overdistension, making it a promising approach for treating ARDS during ventilation.
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Objectives: Pulmonary ventilation/perfusion (V/Q) mismatch measured by electrical impedance tomography (EIT) is associated with the outcome of patients with the acute respiratory distress syndrome (ARDS), but the underlying pathophysiological mechanisms have not been fully elucidated. The present study aimed to verify the correlation between relevant pathophysiological markers of ARDS severity and V/Q mismatch.

Design: Prospective observational study.

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Article Synopsis
  • CRALE (Cardiopulmonary resuscitation-associated lung edema) is a condition observed in patients who undergo cardiac arrest and CPR, influencing both respiratory and cardiovascular systems.
  • An experimental model of cardiac arrest was used to study CRALE, with manual and mechanical chest compressions compared, showing significant respiratory complications due to decreased lung compliance and poor oxygen delivery.
  • Results indicated that after 25 minutes of CPR, animals exhibited signs of CRALE such as increased lung weight and reduced aeration, suggesting a correlation between CPR mechanics and lung edema severity.
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  • The ESICM Green Paper addresses the importance of environmental sustainability in intensive care units (ICUs) and proposes actionable strategies to reduce their ecological impact.
  • A task force of experts assessed key areas for improvement and refined their strategies through a series of meetings and drafts.
  • The paper emphasizes the need for energy efficiency, waste reduction, and education among healthcare professionals to ensure that high-quality patient care and sustainability go hand in hand.
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Background: Sigh breaths may impact outcomes in acute hypoxemic respiratory failure (AHRF) during assisted mechanical ventilation. We investigated whether sigh breaths may impact mortality in predefined subgroups of patients enrolled in the PROTECTION multicenter clinical trial according to: 1.the physiological response in oxygenation to Sigh (responders versus non-responders) and 2.

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Purpose: The novel coronavirus disease (COVID-19) has revived the debate on the optimal tidal volume during acute respiratory distress syndrome (ARDS). Some experts recommend 6 mL/kg of predicted body weight (PBW) for all patients, while others suggest 7-9 mL/kg PBW for those with compliance >50 mL/cmHO. We investigated whether a tidal volume ≥ 7 ml/kg PBW may be safe in COVID-19 patients, particularly those with compliance >50 mL/cmHO.

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Background: High-flow nasal cannula (HFNC) therapy is a non-invasive respiratory treatment characterized by high tolerability, which largely derives from the patient's comfort.

Aim: The primary aim of this study was to explore whether the patient's perceived comfort was the same regardless of different approaches used to reach the target humidification temperature. The secondary aim was to assess the patient's perceived nasal dryness and humidity.

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Article Synopsis
  • A panel of Italian intensive care specialists explored the use of angiotensin II (ATII) in treating distributive shock, considering patient factors and the effectiveness of existing treatment protocols.
  • They employed a modified Delphi technique to establish consensus on clinical questions and statements related to ATII, resulting in agreement on 13 key statements from a survey.
  • The panel concluded that ATII could be beneficial for specific patients, particularly those with reduced angiotensin-converting enzyme activity or high renin levels, while also noting potential barriers to its use.
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Objective: To investigate the prevalence of upper limb peripheral nerve injuries (PNI) in adult patients admitted to the intensive care unit (ICU) with acute respiratory distress syndrome (ARDS) undergoing prone positioning.

Methods: This systematic review with meta-analysis was conducted following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) and Meta-analysis of Observational Studies in Epidemiology (MOOSE) reporting guidelines. Four electronic databases including PubMed, the Cumulative Index to Nursing and Allied Health Literature (CINAHL), The Cochrane Library, and EMBASE were searched from inception to January 2024.

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Background: Lung transplantation (LUTX) is often complicated by primary graft dysfunction (PGD). Plasma biomarkers hold potential for PGD phenotyping and targeted therapy. This scoping review aims to collect the available literature in search of serum biomarkers for PGD phenotyping.

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Background And Objective: Renal replacement therapy (RRT) plays a critical role in antimicrobial removal, particularly for low-molecular-weight drugs with low plasma protein binding, low distribution volume and hydrophilicity. Medium cut-off (MCO) membranes represent a new generation in dialysis technology, enhancing diffusive modality efficacy and increasing the cut-off from 30 to 45 kDa, crucial for middle molecule removal. This monocentric randomized crossover pilot study aimed to evaluate the impact of continuous haemodialysis with MCO membrane (MCO-CVVHD) on the removal of piperacillin, tazobactam and meropenem compared with continuous veno-venous hemodiafiltration with standard high-flux membrane (HFM-CVVHDF).

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Cell-free hemoglobin (CFH) is used to detect hemolysis and was recently suggested to trigger acute lung injury. However, its role has not been elucidated in severe acute respiratory distress syndrome (ARDS) patients undergoing extracorporeal membrane oxygenation (ECMO). We investigated the association of carboxyhemoglobin (COHb) and haptoglobin-two indirect markers of hemolysis-with mortality in critically ill patients undergoing veno-venous ECMO (VV-ECMO) with adjusted and longitudinal models (primary aim).

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During COVID-19 pandemic, vaccination has been strongly recommended and advocated to prevent COVID-19 infection and adverse outcomes, particularly among at-risk populations. The vaccination against SARS-CoV-2 (COVAC) occurred at off-site locations capable of accommodating large crowds, distinct from the hospital setting, where a team of intensivists, emergency physicians, and nurses, ensuring prompt medical attention (medical occurrences, MO) in cases of adverse event following immunization. Our aims were to estimate the incidence of MO, and to assess its association with demographics, and vaccine characteristics.

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Article Synopsis
  • The study investigates the use of electrical impedance tomography (EIT) to assess ventilation/perfusion (V'/Q) mismatch in patients with acute respiratory distress syndrome (ARDS) without needing invasive monitoring for calibration.
  • Twenty-one ARDS patients were enrolled, where their cardiac output was measured, and EIT was used to create relative and adjusted V'/Q maps to evaluate the effectiveness of non-invasive correction methods.
  • Results showed that the non-invasive correction improved the accuracy of V'/Q assessment, correlating positively with oxygen levels and negatively with shunt fractions, thus offering a more precise management tool for ARDS.
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Mutual interactions between the diaphragm and lung transplantation (LTx) are known to exist. Before LTx, many factors can exert notable impact on the diaphragmatic function, such as the underlying respiratory disease, the comorbidities, and the chronic treatments of the patient. In the post-LTx setting, even the surgical procedure itself can cause a stressful trauma to the diaphragm, potentially leading to morphological and functional alterations.

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Background: Intravenous fosfomycin (IVFOF) is gaining interest in severe infections. Its use may be limited by adverse events (AEs). Little experience exists on IVFOF therapeutic drug monitoring (TDM) in real-life setting.

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Background: Noninvasive ventilation (NIV) is commonly used in clinical practice to reduce intubation times and enhance patient comfort. However, patient-ventilator interaction (PVI) during NIV, particularly with helmet interfaces, can be challenging due to factors such as dead space and compliance. Neurally adjusted ventilatory assist (NAVA) has shown promise in improving PVI during helmet NIV, but limitations remain.

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Background: Argon (Ar) has been proposed as a potential therapeutic agent in multiple clinical conditions, specifically in organ protection. However, conflicting data on pre-clinical models, together with a great variability in Ar administration protocols and outcome assessments, have been reported. The aim of this study was to review evidence on treatment with Ar, with an extensive investigation on its neuroprotective effect, and to summarise all tested administration protocols.

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