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Procedure: Perfusion

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Total 26728 results found since Jan 2013.

HRCT-Approximated Perfusion is Comparable to Nuclear Perfusion Imaging in Severe COPD
Am J Respir Crit Care Med. 2023 May 16. doi: 10.1164/rccm.202303-0463LE. Online ahead of print.NO ABSTRACTPMID:37192444 | DOI:10.1164/rccm.202303-0463LE
Source: American Journal of Respiratory and Critical Care Medicine - May 16, 2023 Category: Respiratory Medicine Authors: T David Koster Jean-Paul Charbonnier Jan Pruim Hester A Gietema Rein Posthuma Lowie E G W Vanfleteren Marlies van Dijk Karin Klooster Dirk-Jan Slebos Source Type: research

Assessing Regional Lung Perfusion Changes to Inhaled Pulmonary Vasodilators by Electrical Impedance Tomography
Am J Respir Crit Care Med. 2023 Jul 14. doi: 10.1164/rccm.202302-0247IM. Online ahead of print.NO ABSTRACTPMID:37450762 | DOI:10.1164/rccm.202302-0247IM
Source: American Journal of Respiratory and Critical Care Medicine - July 14, 2023 Category: Respiratory Medicine Authors: Stefano Cenci Roberta De Santis Santiago Edward A Bittner Lorenzo Berra Source Type: research

Tissue Perfusion and Diffusion and Cellular Respiration: Transport and Utilization of Oxygen
This article provides an overview of the journey of inspired oxygen after its uptake across the alveolar–capillary interface, and the interplay among tissue perfusion, diffusion, and cellular respiration in the transport and utilization of oxygen. The critical interactions between oxygen and its facilitative carriers (hemoglobin in red blood cells and myoglobin in muscle cells), and with other respiratory and vasoactive molecules (carbon dioxide, nitric oxide, and carbon monoxide), are emphasized to illustrate how this versatile system dynamically optimizes regional convective transport and diffusive gas exchange. The ra...
Source: Seminars in Respiratory and Critical Care Medicine - August 4, 2023 Category: Respiratory Medicine Authors: Hsia, Connie C. W. Tags: Review Article Source Type: research

Effects of pH, lactate, hematocrit and potassium level on the accuracy of continuous glucose monitoring (CGM) in pediatric intensive care unit
Background: Continuous glucose monitoring (CGM) originally was developed for diabetic patients and it may be a useful tool for monitoring glucose changes in pediatric intensive care unit (PICU). Its use is, however, limited by the lack of sufficient data on its reliability at insufficient peripheral perfusion. We aimed to correlate the accuracy of CGM with laboratory markers relevant to disturbed tissue perfusion.Patients and MethodsIn 38 pediatric patients (age range, 0–18 years) requiring intensive care we tested the effect of pH, lactate, hematocrit and serum potassium on the difference between CGM and meter glucose m...
Source: BioMed Central - March 19, 2015 Category: Journals (General) Authors: Gábor MaricsLevente KonczKatalin EitlerBarbara VataiBoglárka SzénásiDavid ZakariásBorbála MikosAnna KörnerPéter Tóth-Heyn Source Type: research

Management and Challenges of Severe Traumatic Brain Injury
Semin Respir Crit Care Med DOI: 10.1055/s-0040-1716493Traumatic brain injury (TBI) is the leading cause of death and disability in trauma patients, and can be classified into mild, moderate, and severe by the Glasgow coma scale (GCS). Prehospital, initial emergency department, and subsequent intensive care unit (ICU) management of severe TBI should focus on avoiding secondary brain injury from hypotension and hypoxia, with appropriate reversal of anticoagulation and surgical evacuation of mass lesions as indicated. Utilizing principles based on the Monro–Kellie doctrine and cerebral perfusion pressure (CPP), a surrogate ...
Source: Seminars in Respiratory and Critical Care Medicine - September 10, 2020 Category: Respiratory Medicine Authors: Rakhit, Shayan Nordness, Mina F. Lombardo, Sarah R. Cook, Madison Smith, Laney Patel, Mayur B. Tags: Review Article Source Type: research

Evaluation of the prevalence and factors associated with acute kidney injury in a pediatric intensive care unit.
CONCLUSION: Older children, diagnosis of sepsis, demand for ventilatory support, and use of vasoactive amines were correlated with a higher risk of developing acute kidney injury. The mortality associated with acute kidney injury was elevated; it is crucial that all measures that ensure adequate renal perfusion are taken for patients with risk factors, to avoid the installation of the disease. PMID: 32919936 [PubMed - as supplied by publisher]
Source: Jornal de Pediatria - September 9, 2020 Category: Pediatrics Authors: Louzada CF, Ferreira AR Tags: J Pediatr (Rio J) Source Type: research

Implementation of Multimodality Neurologic Monitoring Reporting in Pediatric Traumatic Brain Injury Management
ConclusionImplementation of MMM reporting in pediatric TBI management is feasible and can be impactful in tailoring clinical decisions. Prospective work is needed to understand the impact of MMM and MMM reporting systems on functional outcomes and clinical care efficacy.
Source: Neurocritical Care - March 31, 2021 Category: Neurology Source Type: research

Evaluation of COVID-19–Associated Myocarditis Via Point-of-Care Ultrasound in a Pediatric Patient
Coronavirus disease 2019 (COVID-19)–associated myocarditis has been reported from the onset of the pandemic. The presumed etiology is direct damage to the myocardium from severe acute respiratory syndrome coronavirus 2. Common findings include electrocardiogram abnormalities, elevated cardiac markers, and diminished cardiac function. This can lead to heart failure and cardiogenic shock with resultant poor perfusion. Thus, myocarditis has been recognized as a cause of death in patients with COVID-19. Unfortunately, it is difficult to predict the prevalence of myocarditis in these patients given the relative novelty of the...
Source: Pediatric Emergency Care - February 1, 2022 Category: Emergency Medicine Tags: Ultrasound Case Review Source Type: research

Breakthrough in cardiac arrest: reports from the 4th Paris International Conference
Jean-Luc Diehl The French Intensive Care Society organized on 5th and 6th June 2014 its 4th “Paris International Conference in Intensive Care”, whose principle is to bring together the best international experts on a hot topic in critical care medicine. The 2014 theme was “Breakthrough in cardiac arrest”, with many high-quality updates on epidemiology, public health data, pre-hospital and in-ICU cares. The present review includes short summaries of the major presentations, classified into six main chapters:Epidemiology of CAPre-hospital managementPost-resuscitation management: targeted temperature managementPost-re...
Source: Annals of Intensive Care - September 17, 2015 Category: Intensive Care Authors: Peter KudenchukClaudio SandroniHendrik DrinhausBernd BöttigerAlain CariouKjetil SundeMartin DworschakFabio TacconeNicolas DeyeHans FribergSteven LaureysDidier LedouxMauro OddoStéphane LegrielPhilippe HantsonJean-Luc DiehlPierre-Francois Laterre Source Type: research

Optimizing Oxygenation in the Mechanically Ventilated Patient
This article discusses fundamental aspects of respiratory physiology and clinical indices used to describe oxygenation status. Key nursing interventions including patient assessment, positioning, pharmacology, and managing hemodynamic parameters are discussed, emphasizing their effects toward mitigating ventilation –perfusion mismatch and optimizing oxygenation.
Source: Critical Care Nursing Clinics of North America - August 17, 2016 Category: Nursing Authors: Glenn Barton, Brandi Vanderspank-Wright, Jacqueline Shea Source Type: research

Massive Pulmonary Embolism: Extracorporeal Membrane Oxygenation and Surgical Pulmonary Embolectomy
Semin Respir Crit Care Med 2017; 38: 066-072 DOI: 10.1055/s-0036-1597559Massive pulmonary embolism (PE) refers to large emboli that cause hemodynamic instability, right ventricular failure, and circulatory collapse. According to the 2016 ACCP Antithrombotic Guidelines, therapy for massive PE should include systemic thrombolytic therapy in conjunction with anticoagulation and supportive care. However, in patients with a contraindication to systemic thrombolytics or in those who fail the above interventions, extracorporeal membrane oxygenation (ECMO) and/or surgical embolectomy may be used to improve oxygenation, achieve hem...
Source: Seminars in Respiratory and Critical Care Medicine - February 15, 2017 Category: Respiratory Medicine Authors: Weinberg, Aaron Tapson, Victor F. Ramzy, Danny Tags: Review Article Source Type: research

Update on critical care for acute spinal cord injury in the setting of polytrauma.
Abstract Traumatic spinal cord injury (SCI) often occurs in patients with concurrent traumatic injuries in other body systems. These patients with polytrauma pose unique challenges to clinicians. The current review evaluates existing guidelines and updates the evidence for prehospital transport, immobilization, initial resuscitation, critical care, hemodynamic stability, diagnostic imaging, surgical techniques, and timing appropriate for the patient with SCI who has multisystem trauma. Initial management should be systematic, with focus on spinal immobilization, timely transport, and optimizing perfusion to the sp...
Source: Neurosurgical Focus - November 1, 2017 Category: Neurosurgery Authors: Yue JK, Winkler EA, Rick JW, Deng H, Partow CP, Upadhyayula PS, Birk HS, Chan AK, Dhall SS Tags: Neurosurg Focus Source Type: research