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Quintana-Villamandos B, Barranco M, Fernández I, Ruiz M, Del Cañizo JF. New Advances in Monitoring Cardiac Output in Circulatory Mechanical Assistance Devices. A Validation Study in a Porcine Model. Front Physiol 2021; 12:634779. [PMID: 33746776 PMCID: PMC7969803 DOI: 10.3389/fphys.2021.634779] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 02/11/2021] [Indexed: 01/04/2023] Open
Abstract
Cardiac output (CO) measurement by continuous pulmonary artery thermodilution (COCTD) has been studied in patients with pulsatile-flow LVADs (left ventricular assist devices), confirming the clinical utility. However, it has not been validated in patients with continuous-flow LVADs. Therefore, the aim of this study was to assess the validity of COCTD in continuous-flow LVADs. Continuous-flow LVADs were implanted in six miniature pigs for partial assistance of the left ventricle. Both methods of measuring CO—measurement by COCTD and intermittent pulmonary artery thermodilution, standard technique (COITD)—were used in four consecutive moments of the study: before starting the LVAD (basal moment), and with the LVAD started in normovolemia, hypervolemia (fluid overloading), and hypovolemia (shock hemorrhage). At the basal moment, COCTD and COITD were closely correlated (r2 = 0.97), with a mean bias of −0.13 ± 0.16 L/min and percentage error of 11%. After 15 min of partial support LVAD, COCTD and COITD were closely correlated (r2 = 0.91), with a mean bias of 0.31 ± 0.35 L/min and percentage error of 20%. After inducing hypervolemia, COCTD and COITD were closely correlated (r2 = 0.99), with a mean bias of 0.04 ± 0.07 L/min and percentage error of 5%. After inducing hypovolemia, COCTD and COITD were closely correlated (r2 = 0.74), with a mean bias of 0.08 ± 0.22 L/min and percentage error of 19%. This study shows that continuous pulmonary thermodilution could be an alternative method of monitoring CO in a porcine model with a continuous-flow LVAD.
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Affiliation(s)
- Begoña Quintana-Villamandos
- Department of Anesthesiology and Intensive Care, Gregorio Marañón Hospital, Madrid, Spain.,Department of Pharmacology and Toxicology, Faculty of Medicine, Universidad Complutense, Madrid, Spain
| | - Mónica Barranco
- Department of Anesthesiology and Intensive Care, Gregorio Marañón Hospital, Madrid, Spain
| | - Ignacio Fernández
- Department of Anesthesiology and Intensive Care, Gregorio Marañón Hospital, Madrid, Spain
| | - Manuel Ruiz
- Department of Cardiovascular Surgery, Gregorio Marañón Hospital, Madrid, Spain.,Department of Surgery, Faculty of Medicine, Universidad Complutense, Madrid, Spain
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153
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Continuous enteral protease inhibition as a novel treatment for experimental trauma/hemorrhagic shock. Eur J Trauma Emerg Surg 2021; 48:1579-1588. [PMID: 33483765 DOI: 10.1007/s00068-020-01591-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 12/27/2020] [Indexed: 02/07/2023]
Abstract
PURPOSE Trauma and hemorrhagic shock (T/HS) is a major cause of morbidity and mortality. Existing treatment options are largely limited to source control and fluid and blood repletion. Previously, we have shown that enteral protease inhibition improves outcomes in experimental models of T/HS by protecting the gut from malperfusion and ischemia. However, enteral protease inhibition was achieved invasively, by laparotomy and direct injection of tranexamic acid (TXA) into the small intestine. In this study, we tested a minimally invasive method of enteral protease inhibitor infusion in experimental T/HS that can be readily adapted for clinical use. METHODS Wistar rats were exsanguinated to a mean arterial blood pressure (MABP) of 40 mmHg, with laparotomy to induce trauma. Hypovolemia was maintained for 120 min and was followed by reperfusion of shed blood. Animals were monitored for an additional 120 min. A modified orogastric multi-lumen tube was developed to enable rapid enteral infusion of a protease inhibitor solution while simultaneously mitigating risk of reflux aspiration into the airways. The catheter was used to deliver TXA (T/HS + TXA) or vehicle (T/HS) continuously into the proximal small intestine, starting 20 min into the ischemic period. RESULTS Rats treated with enteral protease inhibition (T/HS + TXA) displayed improved outcomes compared to control animals (T/HS), including significantly improved MABP (p = 0.022) and lactate (p = 0.044). Mass spectrometry-based analysis of the plasma peptidome after T/HS indicated mitigation of systemic proteolysis in T/HS + TXA. CONCLUSION Minimally invasive, continuous enteral protease inhibitor delivery improves outcomes in T/HS and is readily translatable to the clinical arena.
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154
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Nasr VG, Friedman K. Importance of Noninvasive Cardiac Output Measurement in Children: Feasibility or Applicability? J Cardiothorac Vasc Anesth 2021; 35:1358-1359. [PMID: 33551240 DOI: 10.1053/j.jvca.2021.01.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 01/15/2021] [Indexed: 11/11/2022]
Affiliation(s)
- Viviane G Nasr
- Department of Anesthesiology, Critical Care and Pain Medicine
| | - Kevin Friedman
- Department of Pediatrics, Division of Cardiology, Boston Children's Hospital, Harvard Medical School, Boston, MA
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155
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Scheen M, Giraud R, Bendjelid K. Stress hyperglycemia, cardiac glucotoxicity, and critically ill patient outcomes current clinical and pathophysiological evidence. Physiol Rep 2021; 9:e14713. [PMID: 33463901 PMCID: PMC7814494 DOI: 10.14814/phy2.14713] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 12/09/2020] [Accepted: 12/12/2020] [Indexed: 01/07/2023] Open
Abstract
Stress hyperglycemia is a transient increase in blood glucose during acute physiological stress in the absence of glucose homeostasis dysfunction. Its's presence has been described in critically ill patients who are subject to many physiological insults. In this regard, hyperglycemia and impaired glucose tolerance are also frequent in patients who are admitted to the intensive care unit for heart failure and cardiogenic shock. The hyperglycemia observed at the beginning of these cardiac disorders appears to be related to a variety of stress mechanisms. The release of major stress and steroid hormones, catecholamine overload, and glucagon all participate in generating a state of insulin resistance with increased hepatic glucose output and glycogen breakdown. In fact, the observed pathophysiological response, which appears to regulate a stress situation, is harmful because it induces mitochondrial impairment, oxidative stress-related injury to cells, endothelial damage, and dysfunction of several cellular channels. Paradigms are now being challenged by growing evidence of a phenomenon called glucotoxicity, providing an explanation for the benefits of lowering glucose levels with insulin therapy in these patients. In the present review, the authors present the data published on cardiac glucotoxicity and discuss the benefits of lowering plasma glucose to improve heart function and to positively affect the course of critical illness.
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Affiliation(s)
- Marc Scheen
- Intensive Care Division, University Hospitals, Geneva, Switzerland.,Geneva Hemodynamic Research Group, Geneva, Switzerland.,Faculty of Medicine, Geneva, Switzerland
| | - Raphael Giraud
- Intensive Care Division, University Hospitals, Geneva, Switzerland.,Geneva Hemodynamic Research Group, Geneva, Switzerland.,Faculty of Medicine, Geneva, Switzerland
| | - Karim Bendjelid
- Intensive Care Division, University Hospitals, Geneva, Switzerland.,Geneva Hemodynamic Research Group, Geneva, Switzerland.,Faculty of Medicine, Geneva, Switzerland
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156
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Stephens EH, Epting CL, Backer CL, Wald EL. Hyperlactatemia: An Update on Postoperative Lactate. World J Pediatr Congenit Heart Surg 2021; 11:316-324. [PMID: 32294015 DOI: 10.1177/2150135120903977] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
While hyperlactatemia in postoperative cardiac surgery patients was once believed to solely reflect hypoperfusion, either from the accumulated "oxygen debt" during bypass or ongoing inadequate perfusion, our understanding of lactate generation, clearance, and management has evolved. A contemporary understanding of lactate balance is critical to the management of the postoperative patient with hyperlactatemia. In this review, we summarize the current understanding of lactate metabolism in pediatric patients following cardiac surgery and highlight two types of hyperlactatemia: type A, which is secondary to inadequate oxygen delivery and tissue hypoxia, and type B, which in postoperative pediatric cardiac surgery patients largely reflects increased glycolysis driven by the stress response. Both types may coexist; thus, it is imperative that providers first assess the patient for evidence of hypoperfusion. In patients with evidence of adequate perfusion, a type B component is often associated with a concomitant balanced (normal anion gap) metabolic acidosis and hyperglycemia. These patients will benefit from a more nuanced approach to their type B hyperlactatemia, as many will have a benign course and may be managed expectantly.
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Affiliation(s)
- Elizabeth H Stephens
- Division of Cardiovascular-Thoracic Surgery, Department of Surgery, Northwestern University, Chicago, IL, USA
| | - Conrad L Epting
- Divisions of Critical Care and Cardiology, Department of Pediatrics, Northwestern University, Chicago, IL, USA.,Pathology, Northwestern University, Chicago, IL, USA
| | - Carl L Backer
- Division of Cardiovascular-Thoracic Surgery, Department of Surgery, Northwestern University, Chicago, IL, USA
| | - Eric L Wald
- Divisions of Critical Care and Cardiology, Department of Pediatrics, Northwestern University, Chicago, IL, USA
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157
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Jun IJ, Chung MH, Kim JE, Lee HS, Son JM, Choi EM. The influence of positive end-expiratory pressure (PEEP) in predicting fluid responsiveness in patients undergoing one-lung ventilation. Int J Med Sci 2021; 18:2589-2598. [PMID: 34104090 PMCID: PMC8176162 DOI: 10.7150/ijms.59653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 04/21/2021] [Indexed: 12/02/2022] Open
Abstract
Background: Dynamic preload parameters such as pulse pressure variation (PPV) and stroke volume variation (SVV) have widely been used as accurate predictors for fluid responsiveness in patients under mechanical ventilation. To circumvent the limitation of decreased cyclic change of intrathoracic pressure, we performed an intermittent PEEP challenge test to evaluate whether PPV or SVV can predict fluid responsiveness during one-lung ventilation (OLV). Methods: Forty patients undergoing OLV were analyzed. Baseline hemodynamic variables including PPV and SVV and respiratory variables were recorded after chest opening in lateral position under OLV (T1). Five minutes after application of PEEP 10 cmH2O, the parameters were recorded (T2). Thereafter, PEEP was withdrawn to 0 cmH2O for 5 minutes (T3), and fluid loading was performed with balanced crystalloid solution 6 mL/kg of ideal body weight for 5 minutes. Five minutes after completion of fluid loading, all variables were recorded (T4). The patient was classified as fluid responder if SV increased ≥10% after fluid loading and as non-responder if SV increased <10%. Results: Prediction of fluid responsiveness was evaluated with area under the receiver operating characteristic (ROC) curve (AUC). Change in stroke volume variation (ΔSVV) showed AUC of 0.9 (P < 0.001), 95% CI = 0.82-0.99, sensitivity = 88%, specificity = 82% for discrimination of fluid responsiveness. Change in pulse pressure variation (ΔPPV) showed AUC of 0.88 (P < 0.001), 95% CI = 0.78-0.97, sensitivity = 83%, specificity = 72% in predictability of fluid responsiveness. Cardiac index and stroke volume were well maintained after PEEP challenge in non-responders while they increased in responders. Conclusions: ΔPPV and ΔSVV induced by PEEP challenge are reliable parameters to predict fluid responsiveness as well as very good predictors of fluid unresponsiveness during OLV.
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Affiliation(s)
- In-Jung Jun
- Department of Anesthesiology and Pain Medicine, Kangnam Sacred Heart Hospital, University of Hallym College of Medicine, Seoul, Korea
| | - Mi Hwa Chung
- Department of Anesthesiology and Pain Medicine, Kangnam Sacred Heart Hospital, University of Hallym College of Medicine, Seoul, Korea
| | - Jung Eun Kim
- Department of Anesthesiology and Pain Medicine, Kangnam Sacred Heart Hospital, University of Hallym College of Medicine, Seoul, Korea
| | - Hye Sun Lee
- Biostatistics Collaboration Unit, Yonsei University College of Medicine, Seoul, Korea
| | - Jung Mo Son
- Department of Anesthesiology and Pain Medicine, Kangnam Sacred Heart Hospital, University of Hallym College of Medicine, Seoul, Korea
| | - Eun Mi Choi
- Department of Anesthesiology and Pain Medicine, Kangnam Sacred Heart Hospital, University of Hallym College of Medicine, Seoul, Korea
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158
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Herner A, Heilmaier M, Mayr U, Schmid RM, Huber W. Comparison of global end-diastolic volume index derived from jugular and femoral indicator injection: a prospective observational study in patients equipped with both a PiCCO-2 and an EV-1000-device. Sci Rep 2020; 10:20773. [PMID: 33247165 PMCID: PMC7695713 DOI: 10.1038/s41598-020-76286-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 02/28/2020] [Indexed: 11/21/2022] Open
Abstract
Transpulmonary thermodilution (TPTD)-derived global end-diastolic volume index (GEDVI) is a static marker of preload which better predicted volume responsiveness compared to filling pressures in several studies. GEDVI can be generated with at least two devices: PiCCO and EV-1000. Several studies showed that uncorrected indicator injection into a femoral central venous catheter (CVC) results in a significant overestimation of GEDVI by the PiCCO-device. Therefore, the most recent PiCCO-algorithm corrects for femoral indicator injection. However, there are no systematic data on the impact of femoral indicator injection for the EV-1000 device. Furthermore, the correction algorithm of the PiCCO is poorly validated. Therefore, we prospectively analyzed 14 datasets from 10 patients with TPTD-monitoring undergoing central venous catheter (CVC)- and arterial line exchange. PiCCO was replaced by EV-1000, femoral CVCs were replaced by jugular/subclavian CVCs and vice-versa. For PiCCO, jugular and femoral indicator injection derived GEDVI was comparable when the correct information about femoral catheter site was given (p = 0.251). By contrast, GEDVI derived from femoral indicator injection using the EV-1000 was obviously not corrected and was substantially higher than jugular GEDVI measured by the EV-1000 (846 ± 250 vs. 712 ± 227 ml/m2; p = 0.001). Furthermore, measurements of GEDVI were not comparable between PiCCO and EV-1000 even in case of jugular indicator injection (p = 0.003). This is most probably due to different indexations of the raw value GEDV. EV-1000 could not be recommended to measure GEDVI in case of a femoral CVC. Furthermore, different indexations used by EV-1000 and PiCCO should be considered even in case of a jugular CVC when comparing GEDVI derived from PiCCO and EV-1000.
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159
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Saugel B, Kouz K, Scheeren TWL, Greiwe G, Hoppe P, Romagnoli S, de Backer D. Cardiac output estimation using pulse wave analysis-physiology, algorithms, and technologies: a narrative review. Br J Anaesth 2020; 126:67-76. [PMID: 33246581 DOI: 10.1016/j.bja.2020.09.049] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 08/23/2020] [Accepted: 09/10/2020] [Indexed: 01/18/2023] Open
Abstract
Pulse wave analysis (PWA) allows estimation of cardiac output (CO) based on continuous analysis of the arterial blood pressure (AP) waveform. We describe the physiology of the AP waveform, basic principles of PWA algorithms for CO estimation, and PWA technologies available for clinical practice. The AP waveform is a complex physiological signal that is determined by interplay of left ventricular stroke volume, systemic vascular resistance, and vascular compliance. Numerous PWA algorithms are available to estimate CO, including Windkessel models, long time interval or multi-beat analysis, pulse power analysis, or the pressure recording analytical method. Invasive, minimally-invasive, and noninvasive PWA monitoring systems can be classified according to the method they use to calibrate estimated CO values in externally calibrated systems, internally calibrated systems, and uncalibrated systems.
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Affiliation(s)
- Bernd Saugel
- Department of Anesthesiology, Center of Anesthesiology and Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Outcomes Research Consortium, Cleveland, OH, USA.
| | - Karim Kouz
- Department of Anesthesiology, Center of Anesthesiology and Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Thomas W L Scheeren
- Department of Anesthesiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Gillis Greiwe
- Department of Anesthesiology, Center of Anesthesiology and Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Phillip Hoppe
- Department of Anesthesiology, Center of Anesthesiology and Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Stefano Romagnoli
- Department of Health Science, Section of Anesthesia and Critical Care, University of Florence, Florence, Italy; Department of Anesthesia and Critical Care, Careggi University Hospital, Florence, Italy
| | - Daniel de Backer
- Department of Intensive Care, CHIREC Hospitals, Université Libre de Bruxelles, Brussels, Belgium
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160
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Rivas AM, Nugent K. Hyperglycemia, Insulin, and Insulin Resistance in Sepsis. Am J Med Sci 2020; 361:297-302. [PMID: 33500122 DOI: 10.1016/j.amjms.2020.11.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 10/18/2020] [Accepted: 11/06/2020] [Indexed: 02/06/2023]
Abstract
Critically ill patients frequently have hyperglycemia. This event may reflect severe stress with an imbalance between anabolic hormones and catabolic hormones. Alternatively, it may reflect alterations in either insulin levels or insulin function. Insulin is a pleiotropic hormone with multiple important metabolic effects. In patients with sepsis, insulin levels are increased but insulin sensitivity is decreased. However, there is variability in insulin sensitivity, and this creates variability in glucose levels and insulin requirements and increases the frequency of hypo- and hyperglycemia. The factors that influence insulin sensitivity are complex and include inhibition of tyrosine kinase activity of the beta subunit, increased proteolytic activity resulting in loss of receptors from the plasma membrane, and possibly the transfer of insulin receptors into the nucleus where they bind to gene promoters. Better understanding of the role of insulin in critically ill patients requires prospective studies measuring insulin levels in various patient groups and the development of a simple measure of insulin sensitivity.
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Affiliation(s)
- Ana Marcella Rivas
- The Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, United States.
| | - Kenneth Nugent
- The Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, United States
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161
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van Loon LM, van der Hoeven H, Veltink PH, Lemson J. The inspiration hold maneuver is a reliable method to assess mean systemic filling pressure but its clinical value remains unclear. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:1390. [PMID: 33313135 PMCID: PMC7723632 DOI: 10.21037/atm-20-3540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background The upstream pressure for venous return (VR) is considered to be a combined conceptual blood pressure of the systemic vessels: the mean systemic filling pressure (MSFP). The relevance of estimating the MSFP during dynamic changes of the circulation at the bedside is controversial. Herein, we studied the effect of high ventilatory pressures on the relationship between VR and central venous pressure (CVP). Methods In 9 healthy pigs under anaesthesia and mechanically ventilated, MSFP was estimated from extrapolated VR versus CVP relationships during inspiratory hold maneuvers (IHMs) with different levels of ventilatory pressure (Pvent). MSFP was measure 3 times per animal during euvolemia and hypovolemia. Hypovolemia was induced by bleeding with 10 mL/kg. The estimated MSFP values were compared to the blood pressure recording after induced ventricle fibrillation (i.e., mean circulatory filling pressure). Results Our results revealed a strong linear correlation between VR and CVP [R2 of 0.92 (range, 0.67–0.99)], during IHMs with different levels of Pvent. Volume status significantly alters the resulting MSFP, 20±1 and 16±2 mmHg for euvolemia and hypovolemia respectively. This estimation of the MSFP was strongly correlated—but not interchangeable—to the blood pressure recording after induced ventricle fibrillation (R2=0.8 and P=0.045). Conclusions In conclusion, we showed a strong linear correlation between VR and CVP—when applying IHMs with high levels of Pvent—however the clinical applicability of this method to guide volume therapy in its current form is improbable.
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Affiliation(s)
- Lex M van Loon
- Cardiovascular and Respiratory Physiology Group, Faculty of Science and Technology, Technical Medical Centre, University of Twente, Enschede, The Netherlands.,Department of Intensive Care Medicine, Radboud university medical center, Nijmegen, The Netherlands
| | - Hans van der Hoeven
- Department of Intensive Care Medicine, Radboud university medical center, Nijmegen, The Netherlands.,Radboud Center for Infectious Diseases, Nijmegen, The Netherlands
| | - Peter H Veltink
- Biomedical Signals and Systems, Faculty of Electrical Engineering, Mathematics and Computer Science, Technical Medical Centre, University of Twente, Enschede, The Netherlands
| | - Joris Lemson
- Department of Intensive Care Medicine, Radboud university medical center, Nijmegen, The Netherlands
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162
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De Backer D, Vincent JL. Noninvasive Monitoring in the Intensive Care Unit. Semin Respir Crit Care Med 2020; 42:40-46. [PMID: 33065744 DOI: 10.1055/s-0040-1718387] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
There has been considerable development in the field of noninvasive hemodynamic monitoring in recent years. Multiple devices have been proposed to assess blood pressure, cardiac output, and tissue perfusion. All have their own advantages and disadvantages and selection should be based on individual patient requirements and disease severity and adjusted according to ongoing patient evolution.
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Affiliation(s)
- Daniel De Backer
- Department of Intensive Care, CHIREC Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Jean-Louis Vincent
- Department of Intensive Care, Erasme Hospital, Université libre de Bruxelles, Brussels, Belgium
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163
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Ranaldi GT, Villani ER, Franza L. Rationale for ozone-therapy as an adjuvant therapy in COVID-19: a narrative review. Med Gas Res 2020; 10:134-138. [PMID: 33004712 PMCID: PMC8086623 DOI: 10.4103/2045-9912.289462] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Coronavirus disease 2019 (COVID-19) is the respiratory disease caused by the novel severe acute respiratory syndrome-coronavirus-2 and is characterized by clinical manifestations ranging from mild, flu-like symptoms to severe respiratory insufficiency and multi-organ failure. Patients with more severe symptoms may require intensive care treatments and face a high mortality risk. Also, thrombotic complications such as pulmonary embolisms and disseminated intravascular coagulation are frequent in these patients. Indeed, COVID-19 is characterized by an abnormal inflammatory response resembling a cytokine storm, which is associated to endothelial dysfunction and microvascular complications. To date, no specific treatments are available for COVID-19 and its life-threatening complication. Immunomodulatory drugs, such as hydroxychloroquine and interleukin-6 inhibitors, as well as antithrombotic drugs such as heparin and low molecular weight heparin, are currently being administered with some benefit. Ozone therapy consists in the administration of a mixture of ozone and oxygen, called medical ozone, which has been used for over a century as an unconventional medicine practice for several diseases. Medical ozone rationale in COVID-19 is the possibility of contrasting endothelial dysfunction, modulating the immune response and acting as a virustatic agent. Thus, medical ozone could help to decrease lung inflammation, slow down viral growth, regulate lung circulation and oxygenation and prevent microvascular thrombosis. Ozone-therapy could be considered a feasible, cost-effective and easy to administer adjuvant therapy while waiting for the synthesis of a therapy or the development of the vaccine.
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Affiliation(s)
- Giovanni Tommaso Ranaldi
- Unità Operativa Semplice Dipartimentale Farmacologia Clinica e Sperimentazione Clinica, Azienda Sanitaria, Potenza, Italy
| | | | - Laura Franza
- Department of Emergency Medicine, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Rome, Italy
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164
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Judson PI, Abhilash KPP, Pichamuthu K, Chandy GM. Evaluation of Carotid Flow Time to Assess Fluid Responsiveness in the Emergency Department. J Med Ultrasound 2020; 29:99-104. [PMID: 34377640 PMCID: PMC8330669 DOI: 10.4103/jmu.jmu_77_20] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 07/19/2020] [Accepted: 08/07/2020] [Indexed: 01/20/2023] Open
Abstract
Background: Assessing fluid responsiveness in critically ill patients is challenging. Objective, noninvasive tests that are easy to perform are needed. Doppler measurements of dynamic carotid artery parameters such as carotid blood flow (CBF) and carotid flow time (CFT) are being studied as the potential indicators of volume responsiveness, but the data supporting its use are sparse. Methods: This prospective, observational study was conducted in the adult emergency department from June to September 2018. Patients who were prescribed a bolus of 500 ml of crystalloid for any indication were enrolled. Carotid Doppler was performed before and after a fluid bolus to measure the change in CBF and CFT. The aim of our study was to determine if CFT can be used as a marker of fluid responsiveness. Results: During the 4-month study period, 209 patients were recruited through convenient sampling after obtaining informed written consent. 29.6% of patients presented with a mean arterial pressure (MAP) <65, among whom 58.1% had septic shock. The baseline CBF was 643.0 ± 212.7 ml/min, and it was 583.9 ± 207.1 ml/min and 668 ± 210.8 ml/min in hypotensive and normotensive patients, respectively. Considering a >10% increase in CBF as fluid response, there were 59% responders and 41% nonresponders. The MAP increased by 9.5% in the responders, while there was no significant change in CFT after the fluid bolus. There was no difference in CFT among the responders as compared to the nonresponders. There was no correlation between the change of CBF and CFT (r[207] = 0.013, P = 0.061) after the fluid bolus. Conclusion: Though easy to perform, CFT is probably not a good indicator of fluid responsiveness.
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Affiliation(s)
- P Immanuel Judson
- Department of Emergency Medicine, Christian Medical College, Vellore, Tamil Nadu, India
| | | | - Kishore Pichamuthu
- Department of Critical Care, Christian Medical College, Vellore, Tamil Nadu, India
| | - Gina Maryann Chandy
- Department of Emergency Medicine, Christian Medical College, Vellore, Tamil Nadu, India
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165
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Osuchowski MF, Aletti F, Cavaillon JM, Flohé SB, Giamarellos-Bourboulis EJ, Huber-Lang M, Relja B, Skirecki T, Szabó A, Maegele M. SARS-CoV-2/COVID-19: Evolving Reality, Global Response, Knowledge Gaps, and Opportunities. Shock 2020; 54:416-437. [PMID: 32433217 PMCID: PMC7363382 DOI: 10.1097/shk.0000000000001565] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 04/29/2020] [Accepted: 05/05/2020] [Indexed: 02/06/2023]
Abstract
Approximately 3 billion people around the world have gone into some form of social separation to mitigate the current severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic. The uncontrolled influx of patients in need of emergency care has rapidly brought several national health systems to near-collapse with deadly consequences to those afflicted by Coronavirus Disease 2019 (COVID-19) and other critical diseases associated with COVID-19. Solid scientific evidence regarding SARS-CoV-2/COVID-19 remains scarce; there is an urgent need to expand our understanding of the SARS-CoV-2 pathophysiology to facilitate precise and targeted treatments. The capacity for rapid information dissemination has emerged as a double-edged sword; the existing gap of high-quality data is frequently filled by anecdotal reports, contradictory statements, and misinformation. This review addresses several important aspects unique to the SARS-CoV-2/COVID-19 pandemic highlighting the most relevant knowledge gaps and existing windows-of-opportunity. Specifically, focus is given on SARS-CoV-2 immunopathogenesis in the context of experimental therapies and preclinical evidence and their applicability in supporting efficacious clinical trial planning. The review discusses the existing challenges of SARS-CoV-2 diagnostics and the potential application of translational technology for epidemiological predictions, patient monitoring, and treatment decision-making in COVID-19. Furthermore, solutions for enhancing international strategies in translational research, cooperative networks, and regulatory partnerships are contemplated.
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Affiliation(s)
- Marcin F. Osuchowski
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology in the AUVA Trauma Research Center, Vienna, Austria
| | - Federico Aletti
- Department of Bioengineering, University of California San Diego, La Jolla, California
| | | | - Stefanie B. Flohé
- Department of Trauma, Hand, and Reconstructive Surgery, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | | | - Markus Huber-Lang
- Institute of Clinical and Experimental Trauma-Immunology, University Hospital Ulm, Ulm University, Ulm, Germany
| | - Borna Relja
- Experimental Radiology, Department of Radiology and Nuclear Medicine, Otto von Guericke University Magdeburg, Magdeburg, Germany
| | - Tomasz Skirecki
- Laboratory of Flow Cytometry, Centre of Postgraduate Medical Education, Warsaw, Poland
| | - Andrea Szabó
- Institute of Surgical Research, University of Szeged, Szeged, Hungary
| | - Marc Maegele
- Department of Trauma and Orthopaedic Surgery, Cologne-Merheim Medical Center (CMMC), University of Witten/Herdecke, Cologne-Merheim Campus, Cologne, Germany
- Institute for Research in Operative Medicine (IFOM), University of Witten/Herdecke, Cologne-Merheim Campus, Cologne, Germany
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166
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Lefevre RJ, Balzer C, Baudenbacher FJ, Riess ML, Hernandez A, Eagle SS. Venous Waveform Analysis Correlates With Echocardiography in Detecting Hypovolemia in a Rat Hemorrhage Model. Semin Cardiothorac Vasc Anesth 2020; 25:11-18. [PMID: 32957831 DOI: 10.1177/1089253220960894] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND Assessing intravascular hypovolemia due to hemorrhage remains a clinical challenge. Central venous pressure (CVP) remains a commonly used monitor in surgical and intensive care settings for evaluating blood loss, despite well-described pitfalls of static pressure measurements. The authors investigated an alternative to CVP, intravenous waveform analysis (IVA) as a method for detecting blood loss and examined its correlation with echocardiography. METHODS Seven anesthetized, spontaneously breathing male Sprague Dawley rats with right internal jugular central venous and femoral arterial catheters underwent hemorrhage. Mean arterial pressure (MAP), heart rate, CVP, and IVA were assessed and recorded. Hemorrhage was performed until each rat had 25% estimated blood volume removed. IVA was obtained using fast Fourier transform and the amplitude of the fundamental frequency (f1) was measured. Transthoracic echocardiography was performed utilizing a parasternal short axis image of the left ventricle during hemorrhage. MAP, CVP, and IVA were compared with blood removed and correlated with left ventricular end diastolic area (LVEDA). RESULTS All 7 rats underwent successful hemorrhage. MAP and f1 peak amplitude obtained by IVA showed significant changes with hemorrhage. MAP and f1 peak amplitude also significantly correlated with LVEDA during hemorrhage (R = 0.82 and 0.77, respectively). CVP did not significantly change with hemorrhage, and there was no significant correlation between CVP and LVEDA. CONCLUSIONS In this study, f1 peak amplitude obtained by IVA was superior to CVP for detecting acute, massive hemorrhage. In addition, f1 peak amplitude correlated well with LVEDA on echocardiography. Translated clinically, IVA might provide a viable alternative to CVP for detecting hemorrhage.
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Affiliation(s)
- Ryan J Lefevre
- Vanderbilt University Medical Center, Nashville, TN, USA
| | | | | | - Matthias L Riess
- Vanderbilt University Medical Center, Nashville, TN, USA.,Vanderbilt University, Nashville, TN, USA.,TVHS VA Medical Center, Nashville, TN, USA
| | | | - Susan S Eagle
- Vanderbilt University Medical Center, Nashville, TN, USA
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167
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Maffioli E, Jiang Z, Nonnis S, Negri A, Romeo V, Lietz CB, Hook V, Ristagno G, Baselli G, Kistler EB, Aletti F, O’Donoghue AJ, Tedeschi G. High-Resolution Mass Spectrometry-Based Approaches for the Detection and Quantification of Peptidase Activity in Plasma. Molecules 2020; 25:molecules25184071. [PMID: 32899982 PMCID: PMC7571063 DOI: 10.3390/molecules25184071] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 08/28/2020] [Accepted: 09/04/2020] [Indexed: 12/16/2022] Open
Abstract
Proteomic technologies have identified 234 peptidases in plasma but little quantitative information about the proteolytic activity has been uncovered. In this study, the substrate profile of plasma proteases was evaluated using two nano-LC-ESI-MS/MS methods. Multiplex substrate profiling by mass spectrometry (MSP-MS) quantifies plasma protease activity in vitro using a global and unbiased library of synthetic peptide reporter substrates, and shotgun peptidomics quantifies protein degradation products that have been generated in vivo by proteases. The two approaches gave complementary results since they both highlight key peptidase activities in plasma including amino- and carboxypeptidases with different substrate specificity profiles. These assays provide a significant advantage over traditional approaches, such as fluorogenic peptide reporter substrates, because they can detect active plasma proteases in a global and unbiased manner, in comparison to detecting select proteases using specific reporter substrates. We discovered that plasma proteins are cleaved by endoproteases and these peptide products are subsequently degraded by amino- and carboxypeptidases. The exopeptidases are more active and stable in plasma and therefore were found to be the most active proteases in the in vitro assay. The protocols presented here set the groundwork for studies to evaluate changes in plasma proteolytic activity in shock.
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Affiliation(s)
- Elisa Maffioli
- Department of Veterinary Medicine, University of Milano, 20133 Milano, Italy; (E.M.); (S.N.); (A.N.); (V.R.)
- Centre for Nanostructured Materials and Interfaces (CIMAINA), University of Milano, 20133 Milano, Italy
| | - Zhenze Jiang
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA 92093, USA; (Z.J.); (C.B.L.); (V.H.)
| | - Simona Nonnis
- Department of Veterinary Medicine, University of Milano, 20133 Milano, Italy; (E.M.); (S.N.); (A.N.); (V.R.)
- Centre for Nanostructured Materials and Interfaces (CIMAINA), University of Milano, 20133 Milano, Italy
| | - Armando Negri
- Department of Veterinary Medicine, University of Milano, 20133 Milano, Italy; (E.M.); (S.N.); (A.N.); (V.R.)
- Centre for Nanostructured Materials and Interfaces (CIMAINA), University of Milano, 20133 Milano, Italy
| | - Valentina Romeo
- Department of Veterinary Medicine, University of Milano, 20133 Milano, Italy; (E.M.); (S.N.); (A.N.); (V.R.)
| | - Christopher B. Lietz
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA 92093, USA; (Z.J.); (C.B.L.); (V.H.)
| | - Vivian Hook
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA 92093, USA; (Z.J.); (C.B.L.); (V.H.)
- Department of Neurosciences, School of Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Giuseppe Ristagno
- Department of Pathophysiology and Transplantation, University of Milan, 20133 Milan, Italy;
| | - Giuseppe Baselli
- Dipartimento di Elettronica, Informazione e Bioingegneria, Politecnico di Milano, 20133 Milan, Italy;
| | - Erik B. Kistler
- Department of Anesthesiology & Critical Care, University of California San Diego, La Jolla, CA 92093, USA;
- Department of Anesthesiology & Critical Care, VA San Diego HealthCare System, San Diego, CA 92161, USA
| | - Federico Aletti
- Department of Bioengineering, University of California San Diego, La Jolla, CA 92093, USA;
| | - Anthony J. O’Donoghue
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA 92093, USA; (Z.J.); (C.B.L.); (V.H.)
- Correspondence: (A.J.O.); (G.T.); Tel.: +1-8585345360 (A.J.O.); +39-02-50318127 (G.T.)
| | - Gabriella Tedeschi
- Department of Veterinary Medicine, University of Milano, 20133 Milano, Italy; (E.M.); (S.N.); (A.N.); (V.R.)
- Centre for Nanostructured Materials and Interfaces (CIMAINA), University of Milano, 20133 Milano, Italy
- Correspondence: (A.J.O.); (G.T.); Tel.: +1-8585345360 (A.J.O.); +39-02-50318127 (G.T.)
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168
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Bendjelid K, Muller L. Haemodynamic monitoring of COVID-19 patients: Classical methods and new paradigms. Anaesth Crit Care Pain Med 2020; 39:551-552. [PMID: 32896671 PMCID: PMC7473332 DOI: 10.1016/j.accpm.2020.09.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Karim Bendjelid
- Intensive Care Division, University Hospitals, Geneva, Switzerland; Geneva Haemodynamic Research Group, Geneva, Switzerland; Faculty of Medicine, Geneva, Switzerland.
| | - Laurent Muller
- Department of Anaesthesia, Intensive Care, Pain and Emergency Medicine, Nîmes University Hospital, France; University of Montpellier, France.
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169
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Chen CT, Chen CH, Chen TY, Yen DHT, How CK, Hou PC. Comparison of in-hospital and out-of-hospital cardiac arrest patients receiving targeted temperature management: A matched case-control study. J Chin Med Assoc 2020; 83:858-864. [PMID: 32371666 PMCID: PMC7478210 DOI: 10.1097/jcma.0000000000000343] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Evidences that support the use of targeted temperature management (TTM) for in-hospital cardiac arrest (IHCA) are lacking. We aimed to investigate the hypothesis that TTM benefits for patients with IHCA are similar to those with out-of-hospital cardiac arrest (OHCA) and to determine the independent predictors of resuscitation outcomes in patients with cardiac arrest receiving subsequent TTM. METHODS This is a retrospective, matched, case-control study (ratio 1:1) including 93 patients with IHCA treated with TTM after the return of spontaneous circulation, who were admitted to Partners HealthCare system in Boston from January 2011 to December 2018. Controls were defined as the same number of patients with OHCA, matched for age, Charlson score, and sex. Survival and neurological outcomes upon discharge were the primary outcome measures. RESULTS Patients with IHCA were more likely to have experienced a witnessed arrest and receive bystander cardiopulmonary resuscitation, a larger total dosage of epinephrine, and extracorporeal membrane oxygenation. The time duration for ROSC was shorter in patients with IHCA than in those with OHCA. The IHCA group was more likely associated with mild thrombocytopenia during TTM than the OHCA group. Survival after discharge and favorable neurological outcomes did not differ between the two groups. Among all patients who had cardiac arrest treated with TTM, the initial shockable rhythm, time to ROSC, and medical history of heart failure were independent outcome predictors for survival to hospital discharge. The only factor to predict favorable neurological outcomes at discharge was initial shockable rhythm. CONCLUSION The beneficial effects of TTM in eligible patients with IHCA were similar with those with OHCA. Initial shockable rhythm was the only independent predictor of both survival and favorable neurological outcomes at discharge in all cardiac arrest survivors receiving TTM.
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Affiliation(s)
- Chung-Ting Chen
- Emergency Department, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- National Yang-Ming University, School of Medicine, Taipei, Taiwan, ROC
| | - Cheng-Han Chen
- Emergency Department, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- National Yang-Ming University, School of Medicine, Taipei, Taiwan, ROC
| | - Tzu-Yin Chen
- Emergency Department, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - David Hung-Tsang Yen
- Emergency Department, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- National Yang-Ming University, School of Medicine, Taipei, Taiwan, ROC
| | - Chorng-Kuang How
- Emergency Department, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- National Yang-Ming University, School of Medicine, Taipei, Taiwan, ROC
- Kinmen Hospital, Ministry of Health and Welfare, Kinmen, Taiwan, ROC
- Address correspondence. Dr. Chorng-Kuang How, Emergency Department, Taipei Veterans General Hospital, 201, Section 2, Shi-Pai Road, Taipei 112, Taiwan, ROC. E-mail: (C.-K.How.)
| | - Peter Chuanyi Hou
- Division of Emergency Critical Care Medicine, Department of Emergency Medicine, Brigham and Women’s Hospital, Boston, Massachusetts, USA
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170
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Abstract
Cardiac ultrasound is increasingly used to guide hemodynamic decision making in the neonatal intensive care unit (NICU). This article focuses on likely future progress in training, accreditation, digital connectivity, miniaturization, and modality development. Many documents have been published internationally to guide cardiac ultrasound training, accreditation, and implementation in the NICU, but challenges remain in providing assessments of hemodynamic status without risking missed structural diagnoses. Advances in simulation training and digital connectivity provide an opportunity to standardize approaches across institutions and continents. Development of machine learning and ultrasound modalities in turn provide huge scope for improving robustness and completeness of assessment.
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Affiliation(s)
- Alan Groves
- Division of Newborn Medicine, Icahn School of Medicine at Mount Sinai, 1184 5th Avenue, New York, NY 10029, USA.
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171
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Verma BR, Montane B, Chetrit M, Khayata M, Furqan MM, Ayoub C, Klein AL. Pericarditis and Post-cardiac Injury Syndrome as a Sequelae of Acute Myocardial Infarction. Curr Cardiol Rep 2020; 22:127. [PMID: 32856192 DOI: 10.1007/s11886-020-01371-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
PURPOSE OF REVIEW Pericarditis secondary to acute myocardial infarction (AMI) is known to develop either immediately or after a latent period of few months. Due to varied presentation and timing, its diagnosis and treatment can be challenging. This article reviews underlying mechanisms and the role of cardiac imaging in investigating and managing this condition. RECENT FINDINGS Timely diagnosis of pericarditis after AMI is important to prevent potential progression to complicated pericarditis. Clinical suspicion warrants initial investigation with serum inflammatory levels, electrocardiogram, and echocardiography. When findings are inconclusive, cardiac magnetic resonance imaging and computerized tomography can provide additional diagnostic information. Pericarditis after AMI is a treatable condition. Clinicians should maintain a high suspicion in this era of revascularization and develop a strategic plan for timely diagnosis and management.
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Affiliation(s)
- Beni R Verma
- Department of Cardiovascular Medicine and Department of Thoracic and Cardiovascular Surgery Cleveland Clinic, Center for Diagnosis and Treatment of Pericardial Disease, Cleveland Clinic, 9500 Euclid Ave., Desk J1-5, Cleveland, OH, USA
| | - Bryce Montane
- Department of Cardiovascular Medicine and Department of Thoracic and Cardiovascular Surgery Cleveland Clinic, Center for Diagnosis and Treatment of Pericardial Disease, Cleveland Clinic, 9500 Euclid Ave., Desk J1-5, Cleveland, OH, USA
| | - Michael Chetrit
- Department of Cardiovascular Medicine and Department of Thoracic and Cardiovascular Surgery Cleveland Clinic, Center for Diagnosis and Treatment of Pericardial Disease, Cleveland Clinic, 9500 Euclid Ave., Desk J1-5, Cleveland, OH, USA
| | - Mohamed Khayata
- Department of Cardiovascular Medicine and Department of Thoracic and Cardiovascular Surgery Cleveland Clinic, Center for Diagnosis and Treatment of Pericardial Disease, Cleveland Clinic, 9500 Euclid Ave., Desk J1-5, Cleveland, OH, USA
| | - Muhammad M Furqan
- Department of Cardiovascular Medicine and Department of Thoracic and Cardiovascular Surgery Cleveland Clinic, Center for Diagnosis and Treatment of Pericardial Disease, Cleveland Clinic, 9500 Euclid Ave., Desk J1-5, Cleveland, OH, USA
| | - Chadi Ayoub
- Department of Cardiovascular Medicine and Department of Thoracic and Cardiovascular Surgery Cleveland Clinic, Center for Diagnosis and Treatment of Pericardial Disease, Cleveland Clinic, 9500 Euclid Ave., Desk J1-5, Cleveland, OH, USA
| | - Allan L Klein
- Department of Cardiovascular Medicine and Department of Thoracic and Cardiovascular Surgery Cleveland Clinic, Center for Diagnosis and Treatment of Pericardial Disease, Cleveland Clinic, 9500 Euclid Ave., Desk J1-5, Cleveland, OH, USA.
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172
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Basu S, Sharron M, Herrera N, Mize M, Cohen J. Point-of-Care Ultrasound Assessment of the Inferior Vena Cava in Mechanically Ventilated Critically Ill Children. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2020; 39:1573-1579. [PMID: 32078174 DOI: 10.1002/jum.15247] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 01/22/2020] [Accepted: 02/02/2020] [Indexed: 06/10/2023]
Abstract
OBJECTIVES The objective of this study was to compare the ultrasound-measured inferior vena cava distensibility index (IVCdi), inferior vena cava distensibility variability (IVCdv), and inferior vena cava-to-aorta ratio (IVC/Ao) to other common methods to assess fluid status in mechanically ventilated pediatric critically ill patients. These methods include central venous pressure (CVP), percent fluid overload by weight (%FOw), and percent fluid overload by volume (%FOv). METHODS This was a prospective observational study of a convenience sample of 50 mechanically ventilated pediatric patients. Ultrasound measurements of the inferior vena cava and aorta were obtained, and the IVCdi, IVCdv, and IVC/Ao were calculated and compared to CVP, %FOw, and %FOv. RESULTS The median %FOw was 5%, and the median %FOv was 10%. The mean CVP ± SD was 8.6 ± 4 mm Hg. The CVP had no significant correlation with %FOw or %FOv. There was no significant correlation of the IVCdi with CVP (r = -0.145; P = .325) or %FOv (r = 0.119; P = .420); however, the IVCdi had a significant correlation with %FOw (P = .012). There was also no significant relationship of the IVCdv with CVP (r = -0.135; P = .36) or %FOv (r = 0.128; P = .385); however, there was a significant correlation between the IVCdv and %FOw (P = .012). There was no relationship between the IVC/Ao and any other measures of fluid status. CONCLUSIONS In this cohort of mechanically ventilated pediatric intensive care unit patients, many commonly used markers of fluid status showed weak correlations with each other. The IVCdi and IVCdv significantly correlated with %FOw and may have potential as markers for fluid overload in this patient population.
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Affiliation(s)
- Sonali Basu
- Divisions of Critical Care Medicine, Children's National Health System, Washington, DC, USA
- George Washington University School of Medicine and Health Sciences, Washington, DC, USA
| | - Matthew Sharron
- Divisions of Critical Care Medicine, Children's National Health System, Washington, DC, USA
- George Washington University School of Medicine and Health Sciences, Washington, DC, USA
| | - Nicole Herrera
- Divisions of Critical Care Medicine, Children's National Health System, Washington, DC, USA
- George Washington University School of Medicine and Health Sciences, Washington, DC, USA
| | - Marisa Mize
- Divisions of Critical Care Medicine, Children's National Health System, Washington, DC, USA
- George Washington University School of Medicine and Health Sciences, Washington, DC, USA
| | - Joanna Cohen
- Emergency Medicine, Children's National Health System, Washington, DC, USA
- George Washington University School of Medicine and Health Sciences, Washington, DC, USA
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173
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Coronary Sinus Diameter to Inferior Vena Cava Diameter Ratio in the Diagnosis of Cardiac Tamponade: A Novel Approach. J Comput Assist Tomogr 2020; 44:599-604. [PMID: 32697531 DOI: 10.1097/rct.0000000000001064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND In cardiac tamponade, coronary sinus (CS) as an intrapericardial structure can be easily compressed, whereas inferior vena cava (IVC) dilates. This inverse relationship may augment their roles in the evaluation of tamponade imaging. AIM We assessed the usefulness of computerized tomographic measures of CS diameter and also CS/IVC ratio to predict tamponade in clinically stable patients with large pericardial effusion. METHODS Sixty-six clinically stable patients who had large pericardial effusions were included. Coronary sinus diameter was measured from the point at 1 cm proximal to the CS ostium. Inferior vena cava diameter was measured from the segment between its right atrial orifice and hepatic vein. RESULTS Patients with tamponade had smaller CS diameter and CS/IVC ratio. After adjusting with other parameters, only either CS diameter or CS/IVC ratio predicted tamponade, respectively. (Nagelkerke r value for CS was 53.7% and 72.1% for CS/IVC ratio). In Receiver Operating Characteristic Curve analysis, a cutoff value of 6.85 mm for CS diameter had 82.6% sensitivity and 83.7% specificity and a cutoff value of 27% for CS/IVC ratio had 87.0% sensitivity and 86.0% specificity for predicting cardiac tamponade. CONCLUSIONS The tomographic measures of both the CS diameter and the CS/IVC ratio predicted tamponade in clinically stable patients with large pericardial effusion. Compared with CS diameter, CS/IVC ratio seemed to be a more powerful predictor of tamponade.
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174
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Giraud R, Bendjelid K. COVID-19 pandemic: A new path to intensive care medicine distinction? Anaesth Crit Care Pain Med 2020; 39:545-546. [PMID: 32712304 PMCID: PMC7377754 DOI: 10.1016/j.accpm.2020.07.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 07/14/2020] [Indexed: 11/16/2022]
Affiliation(s)
- Raphaël Giraud
- Intensive Care Unit, Geneva University Hospitals, Geneva, Switzerland; Faculty of Medicine, University of Geneva, Switzerland; Geneva Haemodynamic Research Group, Switzerland; President of the Exam Committee of the Swiss Society of Intensive Care Medicine, Switzerland.
| | - Karim Bendjelid
- Intensive Care Unit, Geneva University Hospitals, Geneva, Switzerland; Faculty of Medicine, University of Geneva, Switzerland; Geneva Haemodynamic Research Group, Switzerland
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176
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Bendjelid K, Raphaël G. Treating hypoxemic patients with SARS-COV-2 pneumonia: Back to applied physiology. Anaesth Crit Care Pain Med 2020; 39:389-390. [PMID: 32305591 PMCID: PMC7161523 DOI: 10.1016/j.accpm.2020.04.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 04/07/2020] [Indexed: 12/23/2022]
Affiliation(s)
- Karim Bendjelid
- Intensive care division, university hospitals, Geneva, Switzerland; Geneva haemodynamic research group, Geneva, Switzerland; Faculty of medicine, Geneva, Switzerland.
| | - Giraud Raphaël
- Intensive care division, university hospitals, Geneva, Switzerland; Geneva haemodynamic research group, Geneva, Switzerland; Faculty of medicine, Geneva, Switzerland
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177
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Bendjelid K. Letter to the Editor: Diastolic pressure should be used to guide management of patients in shock: PRO. J Crit Care 2020; 57:264-265. [PMID: 32423623 DOI: 10.1016/j.jcrc.2019.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 09/05/2019] [Indexed: 11/29/2022]
Affiliation(s)
- Karim Bendjelid
- Department of Anesthesiology and Intensive Care, Geneva University Hospital, Geneva hemodynamic Research Group, Geneva Medical School, Geneva, Switzerland.
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178
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Ruzsa Z, Vámosi Z, Berta B, Nemes B, Tóth K, Kovács N, Zima E, Becker D, Merkely B. Catheter directed thrombolytic therapy and aspiration thrombectomy in intermediate pulmonary embolism with long term results. Cardiol J 2020; 27:368-375. [PMID: 32329040 DOI: 10.5603/cj.a2020.0060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 01/28/2020] [Accepted: 02/02/2020] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Catheter directed thrombolysis (CDT) and thrombectomy represent well established techniques for the treatment of intermediate pulmonary embolism (IPE). The long-term effect of catheter directed thrombolysis of IPE is unknown. METHODS Clinical, interventional and echocardiographic data from 80 consecutive patients with IPE who were treated with CDT were evaluated. Primary end-points were technical success and major adverse events. Secondary end-points were cardiovascular mortality, all-cause mortality, clinical success, rate of bleeding complications, improvement in pulmonary pressure and echocardiography parameters. CDT completed with alteplase (10 mg bolus and 1 mg/h maintenance dose) through a pig-tail catheter for 24 h. After 24 h, control pulmonary angiography was performed. RESULTS In total, 80 patients with a mean age of 59.0 ± 16.8 years were treated. CDT was successful after the first post-operative day in 72 (90%) patients, but thrombus aspiration and fragmentation was performed due to failed thrombolysis in 8 (10%) patients. Final technical and clinical success was reached in 79 (98.8%) and 77 (96.3%) patients, respectively. The mean CDT time in IPE was 27.8 ± 9.6 h. Invasive pulmonary pressure dropped from 57.5 ± 16.7 to 38.9 ± 13.5 (p < 0.001). A caval filter was implanted in 4 (5%) patients. The 1-year major adverse events and cardiovascular mortality rate was 4.0% and 1.4%, respectively. Access site complications (6 major and 6 minor) were encountered in 12 (16.2%) patients. CONCLUSIONS Catheter directed thrombolysis in submassive pulmonary embolism had excellent results. However, additional mechanical thrombectomy was necessary in some patients to achieve good clinical outcomes.
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Affiliation(s)
- Zoltan Ruzsa
- Cardiac and Vascular Center, Semmelweis University, Városmajor str 68, 1122 Budapest, Hungary.
| | - Zoltan Vámosi
- Bács-Kiskun County Hospital, Invasive Cardiology Department, Teaching Hospital of Szent-Györgyi Albert Medical University, Kecskemét, Hungary
| | - Balázs Berta
- Department of Cardiology, Isala Hospital, Zwolle, The Netherlands
| | - Balázs Nemes
- Cardiac and Vascular Center, Semmelweis University, Városmajor str 68, 1122 Budapest, Hungary
| | - Károly Tóth
- Bács-Kiskun County Hospital, Invasive Cardiology Department, Teaching Hospital of Szent-Györgyi Albert Medical University, Kecskemét, Hungary
| | - Nándor Kovács
- Bács-Kiskun County Hospital, Invasive Cardiology Department, Teaching Hospital of Szent-Györgyi Albert Medical University, Kecskemét, Hungary
| | - Endre Zima
- Cardiac and Vascular Center, Semmelweis University, Városmajor str 68, 1122 Budapest, Hungary
| | - Dávid Becker
- Cardiac and Vascular Center, Semmelweis University, Városmajor str 68, 1122 Budapest, Hungary
| | - Béla Merkely
- Cardiac and Vascular Center, Semmelweis University, Városmajor str 68, 1122 Budapest, Hungary
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Patel S, Anne P, Somerfield-Ronek J, Du W, Zilberman MV. Inferior Vena Cava Diameter Predicts Nephropathy in Patients Late After Fontan Palliation. Pediatr Cardiol 2020; 41:789-794. [PMID: 32016581 DOI: 10.1007/s00246-020-02313-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 01/24/2020] [Indexed: 11/28/2022]
Abstract
Single ventricle congenital heart defect patients have improved survival with Fontan palliation. However, they remain at risk for nephropathy, as indicated by pathologic microalbuminuria. We sought to investigate whether echocardiographic measures of the inferior vena cava diameter (a surrogate for elevated CVP) indexed to the body surface area (iIVC) or cardiac index (CI) can predict the presence of nephropathy in Fontan patients. We performed a single-center case-control study, including 39 asymptomatic Fontan (age 14.8 ± 7.9 years) and 29 healthy controls (age 12.7 ± 2.7 years). The primary outcome was abnormal microalbumin-creatinine ratio (MCR) from the first-morning void urine in Fontan patients. Measurements of iIVC and CI were derived using transthoracic echocardiography by two investigators with a high intra-class correlation coefficient (ICC = 0.97). Group comparison between Fontan and controls as well as between Fontan with normal and abnormal MCR was performed using Fisher's exact and t tests. Pearson and Spearman's correlations and multivariate regressions were performed to analyze the relations between the MCR, iIVC, and CI. Abnormal MCR was noted in 13/39(33%) of Fontan patients. The mean iIVC was larger in the Fontan compared to controls (p < 0.0001) and in Fontan with abnormal MCR compared to those with normal MCR (p = 0.0006). A positive correlation (r = 0.62; p < 0.001) was noted between MCR and iIVC. All patients with abnormal MCR had the iIVC > 1 cm/m2. There were no significant relations between the CI and MCR. Significant prevalence of nephropathy late after Fontan palliation warrents screening. Echocardiographic measurement of iIVC could serve as one of the screening measures. The finding of the iIVC diameter > 1 cm/m2 should prompt further renal evaluation.
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Affiliation(s)
- Sheetal Patel
- Division of Pediatric Cardiology, Ann & Robert H Lurie Children's Hospital of Chicago, 225 E Chicago Ave, Box 21, Chicago, IL, 60611, USA.
| | - Premchand Anne
- Division of Pediatric Cardiology, Ascension St. John Children's Hospital, Detroit, MI, USA
| | | | - Wei Du
- Department of Pediatrics, Wayne State University School of Medicine, Detroit, MI, USA
| | - Mark V Zilberman
- Floating Hospital for Children at Tufts Medical Center, Boston, MA, USA
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180
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Peng J, Zhang H, Niu H, Wu R. Peptidomic analyses: The progress in enrichment and identification of endogenous peptides. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.115835] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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181
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Payot C, Vuadens-Lehmann A, Giraud R, Bendjelid K. Haemodynamic monitoring during therapeutic hypothermia: Which tool? Anaesth Crit Care Pain Med 2020; 39:243-244. [PMID: 32063506 DOI: 10.1016/j.accpm.2019.10.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 10/22/2019] [Indexed: 06/10/2023]
Affiliation(s)
- Charles Payot
- Department of internal medicine, Geneva university hospital, Geneva, Switzerland.
| | - Alyssa Vuadens-Lehmann
- Department of community medicine, primary care and emergency medicine, Geneva university hospital, Geneva, Switzerland
| | - Raphael Giraud
- Department of anaesthesiology and intensive care, Geneva university hospital, Geneva, Switzerland
| | - Karim Bendjelid
- Department of anaesthesiology and intensive care, Geneva university hospital, Geneva, Switzerland
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182
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Verma BR, Chetrit M, Gentry Iii JL, Noll A, Bafadel A, Khayata M, Harb SC, Xu B, Kontzias A, Kwon DH, Jellis C, Klein AL. Multimodality imaging in patients with post-cardiac injury syndrome. Heart 2020; 106:639-646. [PMID: 32161040 DOI: 10.1136/heartjnl-2019-316050] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 11/16/2019] [Accepted: 12/17/2019] [Indexed: 11/04/2022] Open
Abstract
This review article is focused on the role of echocardiography, cardiac CT and cardiac magnetic resonance (CMR) imaging in diagnosing and managing patients with post-cardiac injury syndrome (PCIS). Clinically, the spectrum of pericardial diseases under PCIS varies not only in form and severity of presentation but also in the timing varying from weeks to months, thus making it difficult to diagnose. Pericarditis developing after recent or remote myocardial infarction, cardiac surgery or ablation if left untreated or under-treated could worsen into complicated pericarditis which can lead to decreased quality of life and increased morbidity. Colchicine in combination with other anti-inflammatory agents (non-steroidal anti-inflammatory drugs) is proven to prevent and treat acute pericarditis as well as its relapses under various scenarios. Imaging modalities such as echocardiography, CT and CMR play a pivotal role in diagnosing PCIS especially in difficult cases or when clinical suspicion is low. Echocardiography is the tool of choice for emergent bedside evaluation for cardiac tamponade and to electively study the haemodynamics impact of constrictive pericarditis. CT can provide information on pericardial thickening, calcification, effusions and lead perforations. CMR can provide pericardial tissue characterisation, haemodynamics changes and guide long-term treatment course with anti-inflammatory agents. It is important to be familiar with the indications as well as findings from these multimodality imaging tools for clinical decision-making.
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Affiliation(s)
- Beni R Verma
- Center for the Diagnosis and Treatment of Pericardial Diseases, Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio, United States
| | - Michael Chetrit
- Center for the Diagnosis and Treatment of Pericardial Diseases, Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio, United States
| | - James L Gentry Iii
- Center for the Diagnosis and Treatment of Pericardial Diseases, Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio, United States
| | - Andrew Noll
- Center for the Diagnosis and Treatment of Pericardial Diseases, Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio, United States
| | - Ahmed Bafadel
- Center for the Diagnosis and Treatment of Pericardial Diseases, Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio, United States
| | - Mohamed Khayata
- Center for the Diagnosis and Treatment of Pericardial Diseases, Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio, United States
| | - Serge C Harb
- Center for the Diagnosis and Treatment of Pericardial Diseases, Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio, United States
| | - Bo Xu
- Center for the Diagnosis and Treatment of Pericardial Diseases, Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio, United States
| | - Apostolos Kontzias
- Rheumatology, Allergy and Immunology, Stony Brook University, Stony Brook, New York, United States
| | - Deborah H Kwon
- Center for the Diagnosis and Treatment of Pericardial Diseases, Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio, United States
| | - Christine Jellis
- Center for the Diagnosis and Treatment of Pericardial Diseases, Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio, United States
| | - Allan L Klein
- Center for the Diagnosis and Treatment of Pericardial Diseases, Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio, United States
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The right ventricle after cardiopulmonary bypass: new insights on its adaptive physiology. J Clin Monit Comput 2020; 34:1133-1134. [PMID: 32157492 DOI: 10.1007/s10877-020-00497-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 03/05/2020] [Indexed: 10/24/2022]
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184
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What should I use next if clinical evaluation and echocardiographic haemodynamic assessment is not enough? Curr Opin Crit Care 2020; 25:259-265. [PMID: 30946038 DOI: 10.1097/mcc.0000000000000603] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
PURPOSE OF REVIEW To provide an integrated clinical approach to the critically ill patients in shock. RECENT FINDINGS The complexity behind shock mechanism has improved in the last decades; as consequence, conventional generalized practices have been questioned, in favour of different approaches, titrated to patient's individual response. Bedside clinical examination has been demonstrated to be a reliable instrument to recognize the mismatch between cardiac function and peripheral oxygen demand. Mottling skin and capillary refill time have been recently proposed using a semi-quantitative approach as reliable tool to guide shock therapy; lactate, ΔCO2 and ScVO2 are also useful to track the effect of the therapies overtime. Critical care echocardiography is useful to assess the source of the shock, to choice the correct the therapy and to customize the therapy. Finally, a more sophisticated and invasive calibrated monitoring should be promptly adopted in case of refractory or mixed shock state to titrate the therapy on predefined goals, avoiding the inappropriate use of fluids and vasoactive drugs. SUMMARY Bedside haemodynamic assessment in critically ill patients should be considered an integrated approach supporting the decision-making process and should be based on clinical examination and critical care echocardiography.
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185
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Martin-Fernandez M, Vaquero-Roncero LM, Almansa R, Gómez-Sánchez E, Martín S, Tamayo E, Esteban-Velasco MC, Ruiz-Granado P, Aragón M, Calvo D, Rico-Feijoo J, Ortega A, Gómez-Pesquera E, Lorenzo-López M, López J, Doncel C, González-Sanchez C, Álvarez D, Zarca E, Ríos-Llorente A, Diaz-Alvarez A, Sanchez-Barrado E, Andaluz-Ojeda D, Calvo-Vecino JM, Muñoz-Bellvís L, Gomez-Herreras JI, Abad-Molina C, Bermejo-Martin JF, Aldecoa C, Heredia-Rodríguez M. Endothelial dysfunction is an early indicator of sepsis and neutrophil degranulation of septic shock in surgical patients. BJS Open 2020; 4:524-534. [PMID: 32073224 PMCID: PMC7260414 DOI: 10.1002/bjs5.50265] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 01/14/2020] [Indexed: 01/01/2023] Open
Abstract
Background Stratification of the severity of infection is currently based on the Sequential Organ Failure Assessment (SOFA) score, which is difficult to calculate outside the ICU. Biomarkers could help to stratify the severity of infection in surgical patients. Methods Levels of ten biomarkers indicating endothelial dysfunction, 22 indicating emergency granulopoiesis, and six denoting neutrophil degranulation were compared in three groups of patients in the first 12 h after diagnosis at three Spanish hospitals. Results There were 100 patients with infection, 95 with sepsis and 57 with septic shock. Seven biomarkers indicating endothelial dysfunction (mid‐regional proadrenomedullin (MR‐ProADM), syndecan 1, thrombomodulin, angiopoietin 2, endothelial cell‐specific molecule 1, vascular cell adhesion molecule 1 and E‐selectin) had stronger associations with sepsis than infection alone. MR‐ProADM had the highest odds ratio (OR) in multivariable analysis (OR 11·53, 95 per cent c.i. 4·15 to 32·08; P = 0·006) and the best area under the curve (AUC) for detecting sepsis (0·86, 95 per cent c.i. 0·80 to 0·91; P < 0·001). In a comparison of sepsis with septic shock, two biomarkers of neutrophil degranulation, proteinase 3 (OR 8·09, 1·34 to 48·91; P = 0·028) and lipocalin 2 (OR 6·62, 2·47 to 17·77; P = 0·002), had the strongest association with septic shock, but lipocalin 2 exhibited the highest AUC (0·81, 0·73 to 0·90; P < 0·001). Conclusion MR‐ProADM and lipocalin 2 could be alternatives to the SOFA score in the detection of sepsis and septic shock respectively in surgical patients with infection.
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Affiliation(s)
- M Martin-Fernandez
- Group for Biomedical Research in Sepsis (BioSepsis), Instituto de Investigación Biomédica de Salamanca (IBSAL), Salamanca, Spain.,Research Unit, Hospital Clínico Universitario de Valladolid, Valladolid, Spain
| | - L M Vaquero-Roncero
- Anaesthesiology and Reanimation Service, Hospital Universitario de Salamanca, Salamanca, Spain
| | - R Almansa
- Group for Biomedical Research in Sepsis (BioSepsis), Instituto de Investigación Biomédica de Salamanca (IBSAL), Salamanca, Spain.,Research Unit, Hospital Clínico Universitario de Valladolid, Valladolid, Spain.,Biomedical Research Networking Centre on Respiratory Diseases (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
| | - E Gómez-Sánchez
- Group for Biomedical Research in Critical Care (BioCritic), Anaesthesiology and Reanimation Service, Hospital Clínico Universitario de Valladolid, Valladolid, Spain
| | - S Martín
- Anaesthesiology and Reanimation Service, Hospital Universitario Río Hortega, Valladolid, Spain
| | - E Tamayo
- Group for Biomedical Research in Critical Care (BioCritic), Anaesthesiology and Reanimation Service, Hospital Clínico Universitario de Valladolid, Valladolid, Spain
| | - M C Esteban-Velasco
- Department of General and Gastrointestinal Surgery, Hospital Universitario de Salamanca, Instituto de Investigación Biomédica de Salamanca (IBSAL) and Universidad de Salamanca, Salamanca, Spain
| | - P Ruiz-Granado
- Group for Biomedical Research in Critical Care (BioCritic), Anaesthesiology and Reanimation Service, Hospital Clínico Universitario de Valladolid, Valladolid, Spain
| | - M Aragón
- Group for Biomedical Research in Critical Care (BioCritic), Anaesthesiology and Reanimation Service, Hospital Clínico Universitario de Valladolid, Valladolid, Spain
| | - D Calvo
- Clinical Analysis Service, Hospital Clínico Universitario de Valladolid, Valladolid, Spain
| | - J Rico-Feijoo
- Anaesthesiology and Reanimation Service, Hospital Universitario Río Hortega, Valladolid, Spain
| | - A Ortega
- Group for Biomedical Research in Sepsis (BioSepsis), Instituto de Investigación Biomédica de Salamanca (IBSAL), Salamanca, Spain.,Research Unit, Hospital Clínico Universitario de Valladolid, Valladolid, Spain
| | - E Gómez-Pesquera
- Group for Biomedical Research in Critical Care (BioCritic), Anaesthesiology and Reanimation Service, Hospital Clínico Universitario de Valladolid, Valladolid, Spain
| | - M Lorenzo-López
- Group for Biomedical Research in Critical Care (BioCritic), Anaesthesiology and Reanimation Service, Hospital Clínico Universitario de Valladolid, Valladolid, Spain
| | - J López
- Department of General and Gastrointestinal Surgery, Hospital Universitario de Salamanca, Instituto de Investigación Biomédica de Salamanca (IBSAL) and Universidad de Salamanca, Salamanca, Spain
| | - C Doncel
- Group for Biomedical Research in Sepsis (BioSepsis), Instituto de Investigación Biomédica de Salamanca (IBSAL), Salamanca, Spain.,Research Unit, Hospital Clínico Universitario de Valladolid, Valladolid, Spain
| | - C González-Sanchez
- Department of General and Gastrointestinal Surgery, Hospital Universitario de Salamanca, Instituto de Investigación Biomédica de Salamanca (IBSAL) and Universidad de Salamanca, Salamanca, Spain
| | - D Álvarez
- Anaesthesiology and Reanimation Service, Hospital Universitario de Salamanca, Salamanca, Spain
| | - E Zarca
- Clinical Analysis Service, Hospital Clínico Universitario de Valladolid, Valladolid, Spain
| | - A Ríos-Llorente
- Anaesthesiology and Reanimation Service, Hospital Universitario de Salamanca, Salamanca, Spain
| | - A Diaz-Alvarez
- Anaesthesiology and Reanimation Service, Hospital Universitario de Salamanca, Salamanca, Spain
| | - E Sanchez-Barrado
- Anaesthesiology and Reanimation Service, Hospital Universitario de Salamanca, Salamanca, Spain
| | - D Andaluz-Ojeda
- Intensive Care Medicine Service, Hospital Clínico Universitario de Valladolid, Valladolid, Spain
| | - J M Calvo-Vecino
- Anaesthesiology and Reanimation Service, Hospital Universitario de Salamanca, Salamanca, Spain
| | - L Muñoz-Bellvís
- Department of General and Gastrointestinal Surgery, Hospital Universitario de Salamanca, Instituto de Investigación Biomédica de Salamanca (IBSAL) and Universidad de Salamanca, Salamanca, Spain.,Biomedical Research Networking Centre on Cancer (CIBERONC), Madrid, Spain
| | - J I Gomez-Herreras
- Group for Biomedical Research in Critical Care (BioCritic), Anaesthesiology and Reanimation Service, Hospital Clínico Universitario de Valladolid, Valladolid, Spain
| | - C Abad-Molina
- Microbiology and Immunology Service, Hospital Clínico Universitario de Valladolid, Valladolid, Spain
| | - J F Bermejo-Martin
- Group for Biomedical Research in Sepsis (BioSepsis), Instituto de Investigación Biomédica de Salamanca (IBSAL), Salamanca, Spain.,Research Unit, Hospital Clínico Universitario de Valladolid, Valladolid, Spain.,Biomedical Research Networking Centre on Respiratory Diseases (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
| | - C Aldecoa
- Anaesthesiology and Reanimation Service, Hospital Universitario Río Hortega, Valladolid, Spain
| | - M Heredia-Rodríguez
- Anaesthesiology and Reanimation Service, Hospital Universitario de Salamanca, Salamanca, Spain
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186
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Nkuipou-Kenfack E, Latosinska A, Yang WY, Fournier MC, Blet A, Mujaj B, Thijs L, Feliot E, Gayat E, Mischak H, Staessen JA, Mebazaa A, Zhang ZY. A novel urinary biomarker predicts 1-year mortality after discharge from intensive care. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2020; 24:10. [PMID: 31918764 PMCID: PMC6953276 DOI: 10.1186/s13054-019-2686-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Accepted: 11/26/2019] [Indexed: 01/25/2023]
Abstract
Rationale The urinary proteome reflects molecular drivers of disease. Objectives To construct a urinary proteomic biomarker predicting 1-year post-ICU mortality. Methods In 1243 patients, the urinary proteome was measured on ICU admission, using capillary electrophoresis coupled with mass spectrometry along with clinical variables, circulating biomarkers (BNP, hsTnT, active ADM, and NGAL), and urinary albumin. Methods included support vector modeling to construct the classifier, Cox regression, the integrated discrimination (IDI), and net reclassification (NRI) improvement, and area under the curve (AUC) to assess predictive accuracy, and Proteasix and protein-proteome interactome analyses. Measurements and main results In the discovery (deaths/survivors, 70/299) and test (175/699) datasets, the new classifier ACM128, mainly consisting of collagen fragments, yielding AUCs of 0.755 (95% CI, 0.708–0.798) and 0.688 (0.656–0.719), respectively. While accounting for study site and clinical risk factors, hazard ratios in 1243 patients were 2.41 (2.00–2.91) for ACM128 (+ 1 SD), 1.24 (1.16–1.32) for the Charlson Comorbidity Index (+ 1 point), and ≥ 1.19 (P ≤ 0.022) for other biomarkers (+ 1 SD). ACM128 improved (P ≤ 0.0001) IDI (≥ + 0.50), NRI (≥ + 53.7), and AUC (≥ + 0.037) over and beyond clinical risk indicators and other biomarkers. Interactome mapping, using parental proteins derived from sequenced peptides included in ACM128 and in silico predicted proteases, including/excluding urinary collagen fragments (63/35 peptides), revealed as top molecular pathways protein digestion and absorption, lysosomal activity, and apoptosis. Conclusions The urinary proteomic classifier ACM128 predicts the 1-year post-ICU mortality over and beyond clinical risk factors and other biomarkers and revealed molecular pathways potentially contributing to a fatal outcome.
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Affiliation(s)
| | | | - Wen-Yi Yang
- Studies Coordinating Centre, Research Unit Hypertension and Cardiovascular Epidemiology, KU Leuven Department of Cardiovascular Sciences, University of Leuven, Campus Sint Rafaël, Kapucijnenvoer 35, Box 7001, 3000, Leuven, Belgium.,Department of Cardiology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Marie-Céline Fournier
- Department of Anesthesiology and Intensive Care, Saint Louis-Lariboisière - Fernand Widal University Hospital, Assistance Publique Hôpitaux de Paris, Paris, France
| | - Alice Blet
- Department of Anesthesiology and Intensive Care, Saint Louis-Lariboisière - Fernand Widal University Hospital, Assistance Publique Hôpitaux de Paris, Paris, France.,Université de Paris, Paris, France
| | - Blerim Mujaj
- Studies Coordinating Centre, Research Unit Hypertension and Cardiovascular Epidemiology, KU Leuven Department of Cardiovascular Sciences, University of Leuven, Campus Sint Rafaël, Kapucijnenvoer 35, Box 7001, 3000, Leuven, Belgium
| | - Lutgarde Thijs
- Studies Coordinating Centre, Research Unit Hypertension and Cardiovascular Epidemiology, KU Leuven Department of Cardiovascular Sciences, University of Leuven, Campus Sint Rafaël, Kapucijnenvoer 35, Box 7001, 3000, Leuven, Belgium
| | - Elodie Feliot
- Department of Anesthesiology and Intensive Care, Saint Louis-Lariboisière - Fernand Widal University Hospital, Assistance Publique Hôpitaux de Paris, Paris, France
| | - Etienne Gayat
- Department of Anesthesiology and Intensive Care, Saint Louis-Lariboisière - Fernand Widal University Hospital, Assistance Publique Hôpitaux de Paris, Paris, France.,Université de Paris, Paris, France.,INSERM UMR-S 942 - MASCOT, Paris, France
| | | | - Jan A Staessen
- Studies Coordinating Centre, Research Unit Hypertension and Cardiovascular Epidemiology, KU Leuven Department of Cardiovascular Sciences, University of Leuven, Campus Sint Rafaël, Kapucijnenvoer 35, Box 7001, 3000, Leuven, Belgium.,Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, the Netherlands
| | - Alexandre Mebazaa
- Department of Anesthesiology and Intensive Care, Saint Louis-Lariboisière - Fernand Widal University Hospital, Assistance Publique Hôpitaux de Paris, Paris, France.,Université de Paris, Paris, France.,INSERM UMR-S 942 - MASCOT, Paris, France
| | - Zhen-Yu Zhang
- Studies Coordinating Centre, Research Unit Hypertension and Cardiovascular Epidemiology, KU Leuven Department of Cardiovascular Sciences, University of Leuven, Campus Sint Rafaël, Kapucijnenvoer 35, Box 7001, 3000, Leuven, Belgium.
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Lee JH, Kwon YL, Na JH, Jang YE, Kim EH, Kim HS, Kim JT. Is dynamic arterial elastance a predictor of an increase in blood pressure after fluid administration in pediatric patients with hypotension? Reanalysis of prospective observational studies. Paediatr Anaesth 2020; 30:34-42. [PMID: 31730254 DOI: 10.1111/pan.13769] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 10/03/2019] [Accepted: 11/12/2019] [Indexed: 11/29/2022]
Abstract
BACKGROUND Dynamic arterial elastance (Eadyn ) has been proposed to predict an increase in mean arterial pressure (MAP) after volume expansion in hypotensive adults. We aimed to evaluate the clinical usefulness of Eadyn as a predictor of arterial pressure response after fluid loading in pediatric patients with hypotension. METHODS We re-analyzed data of 63 hypotensive children (age, ≤5 years), collected from three previous prospective observational studies about fluid responsiveness. Pulse pressure variation (PPV), stroke volume variation (SVV), and respiratory variation in aortic blood flow velocity (ΔVpeak) were used to calculate Eadyn (PPV/SVV) and modified Eadyn (PPV/ΔVpeak). Preload-dependent patients were defined as those with ΔVpeak ≥12% before fluid loading. Patients were classified as pressure responders, if their MAP increased ≥15% after fluid administration. RESULTS Mean Eadyn (SD) was 1.06 (0.47) in pressure responders (n=39) and 0.99 (0.48) in nonresponders (n = 24) (mean difference, 0.08; 95% confidence interval [CI], -0.19-0.34; P = .567). Additionally, mean modified Eadyn was 1.27 (0.64) in responders and 1.11 (0.43) in nonresponders (mean difference, 0.17; 95% CI, -0.13-0.46; P = 0.269). Both Eadyn (AUC 0.506; 95% confidence interval [CI], 0.337 to 0.675; P = 0.948) and modified Eadyn (AUC 0.498; 95% CI, 0.328-0.669; P = 0.983), as well as other dynamic variables, could not predict pressure responsiveness in children. Sub-group analysis revealed similar findings in both in 39 preload-dependent and hypotensive patients (26 pressure responders and 13 nonpressure responders). CONCLUSION Both Eadyn and modified Eadyn cannot predict whether blood pressure increases with fluid administration in pediatric patients with hypotension.
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Affiliation(s)
- Ji-Hyun Lee
- Department of Anaesthesiology and Pain Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Yea-La Kwon
- Department of Anaesthesiology and Pain Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Jung-Hwan Na
- Department of Anaesthesiology and Pain Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Young-Eun Jang
- Department of Anaesthesiology and Pain Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Eun-Hee Kim
- Department of Anaesthesiology and Pain Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Hee-Soo Kim
- Department of Anaesthesiology and Pain Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Jin-Tae Kim
- Department of Anaesthesiology and Pain Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
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188
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Braga D, Barcella M, Herpain A, Aletti F, Kistler EB, Bollen Pinto B, Bendjelid K, Barlassina C. A longitudinal study highlights shared aspects of the transcriptomic response to cardiogenic and septic shock. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2019; 23:414. [PMID: 31856860 PMCID: PMC6921511 DOI: 10.1186/s13054-019-2670-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2019] [Accepted: 11/12/2019] [Indexed: 12/13/2022]
Abstract
Background Septic shock (SS) and cardiogenic shock (CS) are two types of circulatory shock with a different etiology. Several studies have described the molecular alterations in SS patients, whereas the molecular factors involved in CS have been poorly investigated. We aimed to assess in the whole blood of CS and SS patients, using septic patients without shock (SC) as controls, transcriptomic modifications that occur over 1 week after ICU admission and are common to the two types of shock. Methods We performed whole blood RNA sequencing in 21 SS, 11 CS, and 5 SC. In shock patients, blood samples were collected within 16 h from ICU admission (T1), 48 h after ICU admission (T2), and at day 7 or before discharge (T3). In controls, blood samples were available at T1 and T2. Gene expression changes over time have been studied in CS, SS, and SC separately with a paired analysis. Genes with p value < 0.01 (Benjamini-Hochberg multiple test correction) were defined differentially expressed (DEGs). We used gene set enrichment analysis (GSEA) to identify the biological processes and transcriptional regulators significantly enriched in both types of shock. Results In both CS and SS patients, GO terms of inflammatory response and pattern recognition receptors (PRRs) were downregulated following ICU admission, whereas gene sets of DNA replication were upregulated. At the gene level, we observed that alarmins, interleukin receptors, PRRs, inflammasome, and DNA replication genes significantly changed their expression in CS and SS, but not in SC. Analysis of transcription factor targets showed in both CS and SS patients, an enrichment of CCAAT-enhancer-binding protein beta (CEBPB) targets in genes downregulated over time and an enrichment of E2F targets in genes with an increasing expression trend. Conclusions This pilot study supports, within the limits of a small sample size, the role of alarmins, PRRs, DNA replication, and immunoglobulins in the pathophysiology of circulatory shock, either in the presence of infection or not. We hypothesize that these genes could be potential targets of therapeutic interventions in CS and SS. Trial registration ClinicalTrials.gov, NCT02141607. Registered 19 May 2014.
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Affiliation(s)
- Daniele Braga
- Dipartimento di Scienze della Salute, Università degli Studi di Milano, 20142, Milano, Italy. .,Fondazione Filarete, 20139, Milano, Italy.
| | - Matteo Barcella
- Dipartimento di Scienze della Salute, Università degli Studi di Milano, 20142, Milano, Italy.,Fondazione Filarete, 20139, Milano, Italy
| | - Antoine Herpain
- Department of Intensive Care, Hôpital Erasme, Université Libre de Bruxelles, Brussels, Belgium
| | - Federico Aletti
- Department of Bioengineering, University of California San Diego, La Jolla, CA, USA
| | - Erik B Kistler
- Department of Anestesiology & Critical Care, University of California, San Diego, USA
| | - Bernardo Bollen Pinto
- Department of Anaesthesia, Pharmacology and Intensive Care, Geneva University Hospitals, Geneva, Switzerland
| | - Karim Bendjelid
- Department of Anaesthesia, Pharmacology and Intensive Care, Geneva University Hospitals, Geneva, Switzerland
| | - Cristina Barlassina
- Dipartimento di Scienze della Salute, Università degli Studi di Milano, 20142, Milano, Italy.,Fondazione Filarete, 20139, Milano, Italy
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189
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Roberts IV, Bukhary D, Valdivieso CYL, Tirelli N. Fibrin Matrices as (Injectable) Biomaterials: Formation, Clinical Use, and Molecular Engineering. Macromol Biosci 2019; 20:e1900283. [PMID: 31769933 DOI: 10.1002/mabi.201900283] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 10/14/2019] [Indexed: 12/19/2022]
Abstract
This review focuses on fibrin, starting from biological mechanisms (its production from fibrinogen and its enzymatic degradation), through its use as a medical device and as a biomaterial, and finally discussing the techniques used to add biological functions and/or improve its mechanical performance through its molecular engineering. Fibrin is a material of biological (human, and even patient's own) origin, injectable, adhesive, and remodellable by cells; further, it is nature's most common choice for an in situ forming, provisional matrix. Its widespread use in the clinic and in research is therefore completely unsurprising. There are, however, areas where its biomedical performance can be improved, namely achieving a better control over mechanical properties (and possibly higher modulus), slowing down degradation or incorporating cell-instructive functions (e.g., controlled delivery of growth factors). The authors here specifically review the efforts made in the last 20 years to achieve these aims via biomimetic reactions or self-assembly, as much via formation of hybrid materials.
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Affiliation(s)
- Iwan Vaughan Roberts
- Division of Pharmacy and Optometry, School of Health Science, University of Manchester, Oxford Road, Manchester, M13 9PT, UK
| | - Deena Bukhary
- Division of Pharmacy and Optometry, School of Health Science, University of Manchester, Oxford Road, Manchester, M13 9PT, UK.,Department of Pharmaceutical Science, Faculty of Pharmacy, Umm Al-Qura University, Makkah, 21955, Saudi Arabia
| | | | - Nicola Tirelli
- Division of Pharmacy and Optometry, School of Health Science, University of Manchester, Oxford Road, Manchester, M13 9PT, UK.,Laboratory of Polymers and Biomaterials, Fondazione Istituto Italiano di Tecnologia, via Morego 30, 16163, Genova, Italy
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190
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Chaudhury P, Gadre SK, Schneider E, Renapurkar RD, Gomes M, Haddadin I, Heresi GA, Tong MZ, Bartholomew JR. Impact of Multidisciplinary Pulmonary Embolism Response Team Availability on Management and Outcomes. Am J Cardiol 2019; 124:1465-1469. [PMID: 31495443 DOI: 10.1016/j.amjcard.2019.07.043] [Citation(s) in RCA: 85] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 07/16/2019] [Accepted: 07/17/2019] [Indexed: 11/30/2022]
Abstract
Treatment strategies for complex patients with pulmonary embolism (PE) are often debated given patient heterogeneity, multitude of available treatment modalities, and lack of consensus guidelines. Although multidisciplinary Pulmonary Embolism Response Teams (PERT) are emerging to address this lack of consensus, their impact on patient outcomes is not entirely clear. This analysis was conducted to compare outcomes of all patients with PE before and after PERT availability. We analyzed all adult patients admitted with acute PE diagnosed on computed tomography scans in the 18 months before and after the institution of PERT at a large tertiary care hospital. Among 769 consecutive inpatients with PE, PERT era patients had lower rates of major or clinically relevant nonmajor bleeding (17.0% vs 8.3%, p = 0.002), shorter time-to-therapeutic anticoagulation (16.3 hour vs 12.6 hour, p = 0.009) and decreased use of inferior vena cava filters (22.2% vs 16.4%, p = 0.004). There was an increase in the use of thrombolytics/catheter-based strategies, however, this did not achieve statistical significance (p = 0.07). There was a significant decrease in 30-day/inpatient mortality (8.5% vs 4.7%, p = 0.03). These differences in outcomes were more pronounced in intermediate and high-risk patients (mortality 10.0% vs 5.3%, p = 0.02). The availability of multidisciplinary PERT was associated with improved outcomes including 30-day mortality. Patients with higher severity of PE seemed to derive most benefit from PERT availability.
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Affiliation(s)
- Pulkit Chaudhury
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Iowa, Iowa City, Iowa; Section of Vascular Medicine, Department of Cardiovascular Medicine, Cleveland Clinic, Cleveland, Ohio.
| | | | | | | | - Marcelo Gomes
- Section of Vascular Medicine, Department of Cardiovascular Medicine, Cleveland Clinic, Cleveland, Ohio
| | - Ihab Haddadin
- Department of Radiology, Cleveland Clinic, Cleveland, Ohio
| | - Gustavo A Heresi
- Department of Pulmonary Medicine, Cleveland Clinic, Cleveland, Ohio
| | - Michael Z Tong
- Department of Thoracic and Cardiovascular Surgery, Cleveland Clinic, Cleveland, Ohio
| | - John R Bartholomew
- Section of Vascular Medicine, Department of Cardiovascular Medicine, Cleveland Clinic, Cleveland, Ohio
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191
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Pestel G, Fukui K, Higashi M, Schmidtmann I, Werner C. [Meta-analyses on measurement precision of non-invasive hemodynamic monitoring technologies in adults]. Anaesthesist 2019; 67:409-425. [PMID: 29789877 DOI: 10.1007/s00101-018-0452-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
An ideal non-invasive monitoring system should provide accurate and reproducible measurements of clinically relevant variables that enables clinicians to guide therapy accordingly. The monitor should be rapid, easy to use, readily available at the bedside, operator-independent, cost-effective and should have a minimal risk and side effect profile for patients. An example is the introduction of pulse oximetry, which has become established for non-invasive monitoring of oxygenation worldwide. A corresponding non-invasive monitoring of hemodynamics and perfusion could optimize the anesthesiological treatment to the needs in individual cases. In recent years several non-invasive technologies to monitor hemodynamics in the perioperative setting have been introduced: suprasternal Doppler ultrasound, modified windkessel function, pulse wave transit time, radial artery tonometry, thoracic bioimpedance, endotracheal bioimpedance, bioreactance, and partial CO2 rebreathing have been tested for monitoring cardiac output or stroke volume. The photoelectric finger blood volume clamp technique and respiratory variation of the plethysmography curve have been assessed for monitoring fluid responsiveness. In this manuscript meta-analyses of non-invasive monitoring technologies were performed when non-invasive monitoring technology and reference technology were comparable. The primary evaluation criterion for all studies screened was a Bland-Altman analysis. Experimental and pediatric studies were excluded, as were all studies without a non-invasive monitoring technique or studies without evaluation of cardiac output/stroke volume or fluid responsiveness. Most studies found an acceptable bias with wide limits of agreement. Thus, most non-invasive hemodynamic monitoring technologies cannot be considered to be equivalent to the respective reference method. Studies testing the impact of non-invasive hemodynamic monitoring technologies as a trend evaluation on outcome, as well as studies evaluating alternatives to the finger for capturing the raw signals for hemodynamic assessment, and, finally, studies evaluating technologies based on a flow time measurement are current topics of clinical research.
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Affiliation(s)
- G Pestel
- Klinik für Anästhesiologie, Universitätsmedizin Mainz, Langenbeckstr. 1, 55131, Mainz, Deutschland.
| | - K Fukui
- Klinik für Anästhesiologie, Universitätsmedizin Mainz, Langenbeckstr. 1, 55131, Mainz, Deutschland
| | - M Higashi
- Klinik für Anästhesiologie, Universitätsmedizin Mainz, Langenbeckstr. 1, 55131, Mainz, Deutschland
| | - I Schmidtmann
- Institut für Medizinische Biometrie, Epidemiologie und Informatik (IMBEI), Universitätsmedizin Mainz, Mainz, Deutschland
| | - C Werner
- Klinik für Anästhesiologie, Universitätsmedizin Mainz, Langenbeckstr. 1, 55131, Mainz, Deutschland
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Moon YJ, Moon HS, Kim DS, Kim JM, Lee JK, Shim WH, Kim SH, Hwang GS, Choi JS. Deep Learning-Based Stroke Volume Estimation Outperforms Conventional Arterial Contour Method in Patients with Hemodynamic Instability. J Clin Med 2019; 8:jcm8091419. [PMID: 31505848 PMCID: PMC6780281 DOI: 10.3390/jcm8091419] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 08/27/2019] [Accepted: 09/05/2019] [Indexed: 12/15/2022] Open
Abstract
Although the stroke volume (SV) estimation by arterial blood pressure has been widely used in clinical practice, its accuracy is questionable, especially during periods of hemodynamic instability. We aimed to create novel SV estimating model based on deep-learning (DL) method. A convolutional neural network was applied to estimate SV from arterial blood pressure waveform data recorded from liver transplantation (LT) surgeries. The model was trained using a gold standard referential SV measured via pulmonary artery thermodilution method. Merging a gold standard SV and corresponding 10.24 seconds of arterial blood pressure waveform as an input/output data set with 2-senconds of sliding overlap, 484,384 data sets from 34 LT surgeries were used for training and validation of DL model. The performance of DL model was evaluated by correlation and concordance analyses in another 491,353 data sets from 31 LT surgeries. We also evaluated the performance of pre-existing commercialized model (EV1000), and the performance results of DL model and EV1000 were compared. The DL model provided an acceptable performance throughout the surgery (r = 0.813, concordance rate = 74.15%). During the reperfusion phase, where the most severe hemodynamic instability occurred, DL model showed superior correlation (0.861; 95% Confidence Interval, (CI), 0.855-0.866 vs. 0.570; 95% CI, 0.556-0.584, P < 0.001) and higher concordance rate (90.6% vs. 75.8%) over EV1000. In conclusion, the DL-based model was superior for estimating intraoperative SV and thus might guide physicians to precise intraoperative hemodynamic management. Moreover, the DL model seems to be particularly promising because it outperformed EV1000 in circumstance of rapid hemodynamic changes where physicians need most help.
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Affiliation(s)
- Young-Jin Moon
- Biosignal Analysis and Perioperative Outcome Research Laboratory, Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul 05505, Korea.
| | - Hyun S Moon
- Health Innovation Bigdata Center, Asan Institute for Lifesciences, 88, Olympic-ro 43-gil, Songpa-gu, Seoul 05505, Korea.
| | - Dong-Sub Kim
- Health Innovation Bigdata Center, Asan Institute for Lifesciences, 88, Olympic-ro 43-gil, Songpa-gu, Seoul 05505, Korea.
| | - Jae-Man Kim
- Biosignal Analysis and Perioperative Outcome Research Laboratory, Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul 05505, Korea.
| | - Joon-Kyu Lee
- Health Innovation Bigdata Center, Asan Institute for Lifesciences, 88, Olympic-ro 43-gil, Songpa-gu, Seoul 05505, Korea.
| | - Woo-Hyun Shim
- Health Innovation Bigdata Center, Asan Institute for Lifesciences, 88, Olympic-ro 43-gil, Songpa-gu, Seoul 05505, Korea.
| | - Sung-Hoon Kim
- Biosignal Analysis and Perioperative Outcome Research Laboratory, Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul 05505, Korea.
| | - Gyu-Sam Hwang
- Biosignal Analysis and Perioperative Outcome Research Laboratory, Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul 05505, Korea.
| | - Jae-Soon Choi
- Department of Biomedical Engineering, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul 05505, Korea.
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193
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Fujiwara O, Fukuda S, Lopez E, Zeng Y, Niimi Y, DeWitt DS, Herndon DN, Prough DS, Enkhbaatar P. Peroxynitrite decomposition catalyst reduces vasopressin requirement in ovine MRSA sepsis. Intensive Care Med Exp 2019; 7:12. [PMID: 31512009 PMCID: PMC6738358 DOI: 10.1186/s40635-019-0227-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 02/18/2019] [Indexed: 12/19/2022] Open
Abstract
Background Sepsis is one of the most frequent causes of death in the intensive care unit. Host vascular hypo-responsiveness to vasopressors during septic shock is one of the challenging problems. This study tested the hypothesis that adjunct therapy with peroxynitrite decomposition catalyst (WW-85) would reduce arginine vasopressin (AVP) requirements during sepsis resuscitation, using ovine sepsis model. Methods Thirteen adult female Merino sheep, previously instrumented with multiple vascular catheters, were subjected to “two-hit” (cotton smoke inhalation and intrapulmonary instillation of live methicillin-resistant Staphylococcus aureus; 3.5 × 1011 colony-forming units) injury. Post injury, animals were awakened and randomly allocated to the following groups: (1) AVP: injured, fluid resuscitated, and titrated with AVP, n = 6 or (2) WW-85 + AVP: injured, fluid resuscitated, treated with WW-85, and titrated with AVP, n = 7. One-hour post injury, a bolus intravenous injection of WW-85 (0.1 mg/kg) was followed by a 23-h continuous infusion (0.02 mg/kg/h). Titration of AVP started at a dose of 0.01 unit/min, when mean arterial pressure (MAP) decreased by 10 mmHg from baseline, despite aggressive fluid resuscitation, and the rate was further adjusted to maintain MAP. After the injury, all animals were placed on a mechanical ventilator and monitored in the conscious state for 24 h. Results The injury induced severe hypotension refractory to aggressive fluid resuscitation. High doses of AVP were required to partially attenuate the sepsis-induced hypotension. However, the cumulative AVP requirement was significantly reduced by adjunct treatment with WW-85 at 17–24 h after the injury (p < 0.05). Total AVP dose and the highest AVP rate were significantly lower in the WW-85 + AVP group compared to the AVP group (p = 0.02 and 0.04, respectively). Treatment with WW-85 had no adverse effects. In addition, the in vitro effects of AVP on isolated artery diameter changes were abolished with peroxynitrite co-incubation. Conclusions The modulation of reactive nitrogen species, such as peroxynitrite, may be considered as a novel adjunct treatment option for septic shock associated with vascular hypo-responsiveness to vasopressors.
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Affiliation(s)
- Osamu Fujiwara
- Department of Anesthesiology, University of Texas Medical Branch, 301 University Boulevard, Galveston, TX, 77555 1102, USA
| | - Satoshi Fukuda
- Department of Anesthesiology, University of Texas Medical Branch, 301 University Boulevard, Galveston, TX, 77555 1102, USA
| | - Ernesto Lopez
- Department of Anesthesiology, University of Texas Medical Branch, 301 University Boulevard, Galveston, TX, 77555 1102, USA
| | - Yaping Zeng
- Department of Anesthesiology, University of Texas Medical Branch, 301 University Boulevard, Galveston, TX, 77555 1102, USA
| | - Yosuke Niimi
- Department of Anesthesiology, University of Texas Medical Branch, 301 University Boulevard, Galveston, TX, 77555 1102, USA
| | - Douglas S DeWitt
- Department of Anesthesiology, University of Texas Medical Branch, 301 University Boulevard, Galveston, TX, 77555 1102, USA
| | - David N Herndon
- Shriners Hospital for Children, Galveston, Texas, USA.,Department of Surgery, University of Texas Medical Branch, Galveston, Texas, USA
| | - Donald S Prough
- Department of Anesthesiology, University of Texas Medical Branch, 301 University Boulevard, Galveston, TX, 77555 1102, USA
| | - Perenlei Enkhbaatar
- Department of Anesthesiology, University of Texas Medical Branch, 301 University Boulevard, Galveston, TX, 77555 1102, USA. .,Shriners Hospital for Children, Galveston, Texas, USA.
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He F, Li X, Thapa S, Li C, Luo J, Dai W, Liu J. Evaluation of volume responsiveness by pulse pressure variability and inferior vena cava dispensability index at different tidal volumes by mechanical ventilation. ACTA ACUST UNITED AC 2019; 52:e8827. [PMID: 31482978 PMCID: PMC6720221 DOI: 10.1590/1414-431x20198827] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Accepted: 06/24/2019] [Indexed: 02/05/2023]
Abstract
This study investigated the effects of tidal volume (TV) on the diagnostic value of pulse pressure variation (PPV) and the inferior vena cava dispensability index (IVC-DI) for volume responsiveness during mechanical ventilation. In patients undergoing elective surgery with mechanical ventilation, different TVs of 6, 9, and 12 mL/kg were given for two min. The left ventricular outflow tract velocity-time integral (VTI) was measured by transthoracic echocardiography. The IVC-DI was measured at sub-xyphoid transabdominal long axis. The PPV was measured via the radial artery and served as baseline. Index measurements were repeated after fluid challenge. VTI increased by more than 15% after fluid challenge, which was considered as volume responsive. Seventy-nine patients were enrolled, 38 of whom were considered positive volume responsive. Baseline data between the response group and the non-response group were similar. Receiver operating characteristic curve confirmed PPV accuracy in diagnosing an increase in volume responsiveness with increased TV. When TV was 12 mL/kg, the PPV area under the curve (AUC) was 0.93 and the threshold value was 15.5%. IVC-DI had the highest diagnostic accuracy at a TV of 9 mL/kg and an AUC of 0.79, with a threshold value of 15.3%. When TV increased to 12 mL/kg, the IVC-DI value decreased. When the TV was 9 and 12 mL/kg, PPV showed improved performance in diagnosing volume responsiveness than did IVC-DI. PPV diagnostic accuracy in mechanically ventilated patients was higher than IVC-DI. PPV accuracy in predicting volume responsiveness was increased by increasing TV.
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Affiliation(s)
- Fujuan He
- Department of Anesthesiology, West China Hospital, Sichuan University, Wuhou District, Chengdu, Sichuan, China
| | - Xiaoqiang Li
- Department of Anesthesiology, West China Hospital, Sichuan University, Wuhou District, Chengdu, Sichuan, China
| | - Suman Thapa
- Department of Anesthesiology, West China Hospital, Sichuan University, Wuhou District, Chengdu, Sichuan, China
| | - Chi Li
- Department of Anesthesiology, West China Hospital, Sichuan University, Wuhou District, Chengdu, Sichuan, China
| | - Jiawei Luo
- Department of Anesthesiology, West China Hospital, Sichuan University, Wuhou District, Chengdu, Sichuan, China
| | - Wenyan Dai
- Department of Anesthesiology, West China Hospital, Sichuan University, Wuhou District, Chengdu, Sichuan, China
| | - Jin Liu
- Department of Anesthesiology, West China Hospital, Sichuan University, Wuhou District, Chengdu, Sichuan, China
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Cros J, Dalmay F, Yonnet S, Charpentier M, Tran-Van-Ho J, Renaudeau F, Drouet A, Guilbaut P, Marin B, Nathan N. Continuous hemoglobin and plethysmography variability index monitoring can modify blood transfusion practice and is associated with lower mortality. J Clin Monit Comput 2019; 34:683-691. [PMID: 31376030 DOI: 10.1007/s10877-019-00367-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 07/17/2019] [Indexed: 01/28/2023]
Abstract
To determine the effect of implementing an algorithm of fluid and blood administration based on continuous monitoring of hemoglobin (SpHb) and PVI (plethysmography variability index) on mortality and transfusion on a whole hospital scale. This single-center quality program compared transfusion at 48 h and mortality at 30 days and 90 days after surgery between two 11-month periods in 2013 and 2014 during which all the operating and recovery rooms and intensive care units were equipped with SpHb/PVI monitors. The entire team was trained to use monitors and the algorithm. Team members were free to decide whether or not to use devices. Each device was connected to an electronic wireless acquired database to anonymously acquire parameters on-line and identify patients who received the monitoring. All data were available from electronic files. Patients were divided in three groups; 2013 (G1, n = 9285), 2014 without (G2, n = 5856) and with (G3, n = 3575) goal-directed therapy. The influence of age, ASA class, severity and urgency of surgery and use of algorithm on mortality and blood use were analyzed with cox-proportional hazard models. Because in 2015, SpHb/PVI monitors were no longer available, we assessed post-study mortality observed in 2015 to measure the impact of team training to adjust vascular filling on a patient to patient basis. During non-cardiac surgery, blood was more often transfused during surgery in G3 patients as compared to G2 (66.6% vs. 50.7%, p < 0.001) but with fewer blood units per patient. After adjustment, survival analysis showed a lower risk of transfusion at 48 h in G3 [OR 0.79 (0.68-0.93), p = 0.004] but not in G2 [OR 0.90 (0.78-1.04) p = 0.17] as compared to G1. When adjusting to the severity of surgery as covariable, there was 0.5 and 0.7% differences of mortality at day 30 and 90 whether patients had goal directed therapy (GDT). After high risk surgery, the mortality at day 30 is reduced by 4% when using GDT, and 1% after intermediate risk surgery. There was no difference for low risk surgery. G3 Patients had a lower risk of death at 30 days post-surgery [OR 0.67 (0.49-0.92) p = 0.01] but not G2 patients [OR 1.01, (0.78-1.29), p = 0.96]. In 2015, mortality at 30 days and 90 days increased again to similar levels as those of 2013, respectively 2.18 and 3.09%. Monitoring SpHb and PVI integrated in a vascular filling algorithm is associated with earlier transfusion and reduced 30 and 90-day mortality on a whole hospital scale.
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Affiliation(s)
- Jérôme Cros
- Département d'Anesthésie Réanimation, CHU Dupuytren, 2 Avenue Martin Luther King, 87042, Limoges, France. .,Anesthésie Réanimation, Hôpital Mère-Enfant, Ave Docteur Larrey, 87042, Limoges, France. .,Département d'Anesthésie-Réanimation, Hôpital de la Mère et de l'enfant, 8, Avenue Dominique Larrey, 87000, Limoges, France.
| | - François Dalmay
- INSERM, U1094, Neuroépidémiologie Tropicale, 87000, Limoges, France.,Univ. Limoges, UMR_S 1094, Neuroépidémiologie Tropicale, Institut d'Epidémiologie Neurologique et de Neurologie Tropicale, CNRS FR, 3503 GEIST, 87000, Limoges, France.,CEBIMER, CHU Limoges, 2 Avenue Martin Luther King, 87042, Limoges, France
| | - Sandra Yonnet
- SIME, CHU Limoges, and Faculté de Médecine, Limoges, France
| | - Matthieu Charpentier
- Département d'Anesthésie Réanimation, CHU Dupuytren, 2 Avenue Martin Luther King, 87042, Limoges, France
| | - Jessica Tran-Van-Ho
- Département d'Anesthésie Réanimation, CHU Dupuytren, 2 Avenue Martin Luther King, 87042, Limoges, France
| | - François Renaudeau
- Département d'Anesthésie Réanimation, CHU Dupuytren, 2 Avenue Martin Luther King, 87042, Limoges, France
| | - Anais Drouet
- Département d'Anesthésie Réanimation, CHU Dupuytren, 2 Avenue Martin Luther King, 87042, Limoges, France
| | - Pierre Guilbaut
- Département d'Anesthésie Réanimation, CHU Dupuytren, 2 Avenue Martin Luther King, 87042, Limoges, France
| | - Benoit Marin
- INSERM, U1094, Neuroépidémiologie Tropicale, 87000, Limoges, France.,Univ. Limoges, UMR_S 1094, Neuroépidémiologie Tropicale, Institut d'Epidémiologie Neurologique et de Neurologie Tropicale, CNRS FR, 3503 GEIST, 87000, Limoges, France.,CEBIMER, CHU Limoges, 2 Avenue Martin Luther King, 87042, Limoges, France
| | - Nathalie Nathan
- Département d'Anesthésie Réanimation, CHU Dupuytren, 2 Avenue Martin Luther King, 87042, Limoges, France. .,Anesthésie Réanimation, Hôpital Mère-Enfant, Ave Docteur Larrey, 87042, Limoges, France.
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Sekulic I, Dzudovic B, Matijasevic J, Batranovic U, Rusovic S, Mihajlovic M, Miladinovic U, Rancic N, Subotic B, Novicic N, Gavrilovic S, Boskovic-Sekulic J, Obradovic S. Ultrasound assisted thrombolysis in intermediate-risk patients with pulmonary thromboembolism. Acta Cardiol 2019; 75:623-630. [PMID: 31368848 DOI: 10.1080/00015385.2019.1646850] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Background: Systemic thrombolytic therapy is not recommended for patients with intermediate-risk pulmonary embolism (PE) because of major bleeding and intracranial bleeding overcomes the benefit of reperfusion. Patients and methods: A total of 342 PE patients with intermediate-risk PE from the multicenter Serbian PE registry were involved in the study. Of this group, 227 were not treated with reperfusion therapy (anticoagulation only), 91 were treated with conventional thrombolysis protocols at the discretion of their physicians and 24 patients were treated with ultrasound assisted catheter thrombolysis (USACT) with the EKOS® system. All patients treated with USACT had at least one factor which is associated with an increased risk of bleeding. Other patient characteristics were similar across the treatment groups. All-cause and PE-related mortality at 30 days and rate of major bleeding at 7 days were the main efficacy and safety outcomes of the study. Results: The 30-day all-cause mortality were 11.5% versus 17.6% versus 0.0% for no reperfusion, conventional thrombolysis protocols and USACT groups (p = 0.056), respectively. The difference between the rate of 30-day PE-related mortality was in a favour of EKOS and no reperfusion compare to conventional protocols (0.0% vs. 3.5% vs. 11.0%, p = 0.013, respectively). Major bleeding at 7 days, was presented in 1.8% versus 7.7% versus 8.0% (p = 0.021) in no reperfusion, conventional thrombolysis and USACT groups with no intracranial bleeding. Conclusion: In the patients with intermediate-risk PE and at least one bleeding factor, USACT could be an alternative treatment to anticoagulant therapy only and conventional thrombolytic protocols.
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Affiliation(s)
- Igor Sekulic
- Institute for Radiology, Military Medical Academy, Belgrade, Serbia
| | - Boris Dzudovic
- Clinic of Cardiology and Emergency Internal Medicine, Military Medical Academy, Belgrade, Serbia
| | - Jovan Matijasevic
- Institute of Pulmonary Diseases Vojvodina, Medical Faculty, University of Novi Sad, Novi Sad, Serbia
| | - Uros Batranovic
- Clinic of Emergency Medicine, Clinical Centre Kragujevac, Kragujevac, Serbia
| | - Sinisa Rusovic
- Institute for Radiology, Military Medical Academy, Belgrade, Serbia
| | | | - Uros Miladinovic
- Institute for Radiology, Military Medical Academy, Belgrade, Serbia
| | - Nemanja Rancic
- Institute for Radiology, Military Medical Academy, Belgrade, Serbia
- Medical Faculty Military Medical Academy, University of Defense, Belgrade, Serbia
| | - Bojana Subotic
- Clinic of Cardiology and Emergency Internal Medicine, Military Medical Academy, Belgrade, Serbia
| | - Natasa Novicic
- Clinic of Cardiology and Emergency Internal Medicine, Military Medical Academy, Belgrade, Serbia
| | - Srdjan Gavrilovic
- Institute of Pulmonary Diseases Vojvodina, Medical Faculty, University of Novi Sad, Novi Sad, Serbia
| | | | - Slobodan Obradovic
- Clinic of Cardiology and Emergency Internal Medicine, Military Medical Academy, Belgrade, Serbia
- Medical Faculty Military Medical Academy, University of Defense, Belgrade, Serbia
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197
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Grozdanić M, Vidmar R, Vizovišek M, Fonović M. Degradomics in Biomarker Discovery. Proteomics Clin Appl 2019; 13:e1800138. [PMID: 31291060 DOI: 10.1002/prca.201800138] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Revised: 05/01/2019] [Indexed: 12/13/2022]
Abstract
The upregulation of protease expression and proteolytic activity is implicated in numerous pathological conditions such as neurodegeneration, cancer, cardiovascular and autoimmune diseases, and bone degeneration. During disease progression, various proteases form characteristic patterns of cleaved proteins and peptides, which can affect disease severity and course of progression. It has been shown that qualitative and quantitative monitoring of cleaved protease substrates can provide relevant prognostic, diagnostic, and therapeutic information. As proteolytic fragments and peptides generated in the affected tissue are commonly translocated to blood, urine, and other proximal fluids, their possible application as biomarkers is the subject of ongoing research. The field of degradomics has been established to enable the global identification of proteolytic events on the organism level, utilizing proteomic approaches and sample preparation techniques that facilitate the detection of proteolytic processing of protease substrates in complex biological samples. In this review, some of the latest developments in degradomic methodologies used for the identification and validation of biologically relevant proteolytic events and their application in the search for clinically relevant biomarker candidates are presented. The current state of degradomics in clinics is discussed and the future perspectives of the field are outlined.
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Affiliation(s)
- Marija Grozdanić
- Department of Biochemistry, Molecular and Structural Biology, Jozef Stefan Institute, SI-1000, Ljubljana, Slovenia.,International Postgraduate School Jožef Stefan, SI-1000, Ljubljana, Slovenia
| | - Robert Vidmar
- Department of Biochemistry, Molecular and Structural Biology, Jozef Stefan Institute, SI-1000, Ljubljana, Slovenia
| | - Matej Vizovišek
- Department of Biochemistry, Molecular and Structural Biology, Jozef Stefan Institute, SI-1000, Ljubljana, Slovenia
| | - Marko Fonović
- Department of Biochemistry, Molecular and Structural Biology, Jozef Stefan Institute, SI-1000, Ljubljana, Slovenia
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198
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Bengueddache S, Bendjelid K. Letter by Bengueddache and Bendjelid Regarding Article, "Mild Hypothermia in Cardiogenic Shock Complicating Myocardial Infarction: Randomized SHOCK-COOL Trial". Circulation 2019; 140:e154-e155. [PMID: 31306062 DOI: 10.1161/circulationaha.119.040185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
| | - Karim Bendjelid
- Intensive Care Division (K.B.), Geneva Medical School, Switzerland.,Geneva University Hospitals, and Hemodynamic Research Lab (K.B.), Geneva Medical School, Switzerland
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199
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Butchart AG, Zochios V, Villar SS, Jones NL, Curry S, Agrawal B, Jenkins DP, Klein AA. Measurement of extravascular lung water to diagnose severe reperfusion lung injury following pulmonary endarterectomy: a prospective cohort clinical validation study. Anaesthesia 2019; 74:1282-1289. [PMID: 31273760 PMCID: PMC6772184 DOI: 10.1111/anae.14744] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/26/2019] [Indexed: 11/28/2022]
Abstract
The measurement of extravascular lung water is a relatively new technology which has not yet been well validated as a clinically useful tool. We studied its utility in patients undergoing pulmonary endarterectomy as they frequently suffer reperfusion lung injury and associated oedematous lungs. Such patients are therefore ideal for evaluating this new monitor. We performed a prospective observational cohort study during which extravascular lung water index measurements were taken before and immediately after surgery and postoperatively in intensive care. Data were analysed for 57 patients; 21 patients (37%) experienced severe reperfusion lung injury. The first extravascular lung water index measurement after cardiopulmonary bypass failed to predict severe reperfusion lung injury, area under the receiver operating characteristic curve 0.59 (95%CI 0.44–0.74). On intensive care, extravascular lung water index correlated most strongly at 36 h, area under the receiver operating characteristic curve 0.90 (95%CI 0.80–1.00). Peri‐operative extravascular lung water index is not a useful measure to predict severe reperfusion lung injury after pulmonary endarterectomy, however, it does allow monitoring and measurement during the postoperative period. This study implies that extravascular lung water index can be used to directly assess pulmonary fluid overload and that monitoring patients by measuring extravascular lung water index during their intensive care stay is useful and correlates with their clinical course. This may allow directed, pre‐empted therapy to attenuate the effects and improve patient outcomes and should prompt further studies.
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Affiliation(s)
- A G Butchart
- Department of Cardiothoracic Anaesthesia and Intensive Care Medicine, Royal Papworth Hospital, Cambridge, UK
| | - V Zochios
- Department of Intensive Care Medicine, University Hospitals Birmingham National Health Service Foundation Trust, Queen Elizabeth Hospital Birmingham, University of Birmingham, UK
| | - S S Villar
- MRC Biostatistics Unit, University of Cambridge School of Clinical Medicine, Cambridge Institute of Public Health, UK
| | - N L Jones
- Department of Cardiothoracic Anaesthesia and Intensive Care Medicine, Royal Papworth Hospital, Cambridge, UK
| | - S Curry
- Department of Cardiothoracic Anaesthesia and Intensive Care Medicine, Royal Papworth Hospital, Cambridge, UK
| | - B Agrawal
- Department of Radiology, Royal Papworth Hospital, Cambridge, UK
| | - D P Jenkins
- Department of Cardiothoracic Surgery, Royal Papworth Hospital, Cambridge, UK
| | - A A Klein
- Department of Cardiothoracic Anaesthesia and Intensive Care Medicine, Royal Papworth Hospital, Cambridge, UK
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200
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Furtado S, Reis L. Inferior vena cava evaluation in fluid therapy decision making in intensive care: practical implications. Rev Bras Ter Intensiva 2019; 31:240-247. [PMID: 31271627 PMCID: PMC6649212 DOI: 10.5935/0103-507x.20190039] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Accepted: 10/09/2018] [Indexed: 01/03/2023] Open
Abstract
The fluid resuscitation of patients with acute circulatory failure aims to
increase systolic volume and consequently improve cardiac output for better
tissue oxygenation. However, this effect does not always occur because
approximately half of patients do not respond to fluids. The evaluation of fluid
responsiveness before their administration may help to identify patients who
would benefit from fluid resuscitation and avoid the risk of fluid overload in
the others. The dynamic parameters of fluid responsiveness evaluation are
promising predictive factors. Of these, the echocardiographic measurement of the
respiratory variation in the inferior vena cava diameter is easy to apply and
has been used in the hemodynamic evaluation of intensive care unit patients.
However, the applicability of this technique has many limitations, and the
present studies are heterogeneous and inconsistent across specific groups of
patients. We review the use of the inferior vena cava diameter respiratory
variation, measured via transthoracic echocardiography, to decide whether to
administer fluids to patients with acute circulatory failure in the intensive
care unit. We explore the benefits and limitations of this technique, its
current use, and the existing evidence.
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Affiliation(s)
- Sofia Furtado
- Departamento de Medicina Interna - Unidade 1.2, Hospital São José, Centro Hospitalar Universitário Lisboa Central - Lisboa, Portugal.,Unidade de Urgência Médica, Hospital São José, Centro Hospitalar Universitário Lisboa Central - Lisboa, Portugal
| | - Luís Reis
- Unidade de Urgência Médica, Hospital São José, Centro Hospitalar Universitário Lisboa Central - Lisboa, Portugal
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