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Consenso Brasileiro de Monitorização e Suporte Hemodinâmico
Brazilian consensus of monitoring and hemodynamic support – part III: alternative methods for cardiac output monitoring and volemia estimation
Rev Bras Ter Intensiva. 2006;18(1):78-85
Abstract
Consenso Brasileiro de Monitorização e Suporte HemodinâmicoBrazilian consensus of monitoring and hemodynamic support – part III: alternative methods for cardiac output monitoring and volemia estimation
Rev Bras Ter Intensiva. 2006;18(1):78-85
DOI 10.1590/S0103-507X2006000100013
Views0See moreBACKGROUND AND OBJECTIVES: Cardiac output and preload as absolute data do not offer helpful information about the hemodynamic of critically ill patients. However, monitoring the response of these variables to volume challenge or inotropic drugs is a very useful tool in the critical care setting, particularly for patients with signs of tissue hypoperfusion. Although PAC remains the ” gold standard” to measure cardiac output and preload, new and alternative technologies were developed to evaluate these hemodynamic variables. METHODS: Modified Delphi methodology was used to create and quantify the consensus between the participants. AMIB indicated a coordinator who invited more six experts in the area of monitoring and hemodynamic support to constitute the Consensus Advisory Board. Twenty three physician and two nurses selected from different regions of the country completed the expert panel, which reviewed the pertinent bibliography listed at the MEDLINE in the period from 1996 to 2004. RESULTS: Recommendations regarding the use of arterial pulse pressure variation during mechanical ventilation, continuous arterial pulse contour and lithium dilution cardiac output measurements, esophageal Doppler waveform, thoracic electrical bioimpedance, echocardiography and partial CO2 rebreathing for monitoring cardiac output and preload were created. CONCLUSIONS: The new and less invasive techniques for the measurement of cardiac output, preload or fluid responsiveness are accurate and may be an alternative to PAC in critically ill patients.
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Metabolic acid-base status in critically ill patients: is standard base excess correlated with serum lactate level?
Rev Bras Ter Intensiva. 2006;18(1):22-26
Abstract
Metabolic acid-base status in critically ill patients: is standard base excess correlated with serum lactate level?
Rev Bras Ter Intensiva. 2006;18(1):22-26
DOI 10.1590/S0103-507X2006000100005
Views0See moreBACKGROUND AND OBJECTIVES: To correlate standard base excess (SBE) with serum lactate level and demonstrate the independent prognostic significance of each one. METHODS: In a retrospective study, we retrieved data from 333 patients of our prospectively collected database of 7-bed medical intensive care unit of a 1800-bed university hospital. RESULTS: The results have shown a poor correlation between SBE and lactate, r = – 0.358, p < 0.001, and an independent prognostic significance of each one when analyzed concomitantly, odds ratio (95% Confidence interval) = 0.996 (0.992 - 0.999) to standard base excess and 1.000 (1.000 - 1.002) to lactate at entrance; and odds ratio (95% Confidence interval ) = 0.990 (0.985 - 0.994) to standard base excess and 1.003 (1.001 - 1.005) to lactate after 24 hours. The accuracy of standard base excess was close to lactate to determine in-intensive care unit death. CONCLUSIONS: The lactic component of the metabolic acidosis is not the major determinant of standard base excess. Serum lactate and SBE are independent outcome predictors in critically ill patients.
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Noninvasive mechanical ventilation with positive pressure
Rev Bras Ter Intensiva. 2007;19(2):245-257
Abstract
Noninvasive mechanical ventilation with positive pressure
Rev Bras Ter Intensiva. 2007;19(2):245-257
DOI 10.1590/S0103-507X2007000200019
Views0See moreBACKGROUND AND OBJECTIVES: The II Brazilian Consensus Conference on Mechanical Ventilation was published in 2000. Knowledge on the field of mechanical ventilation evolved rapidly since then, with the publication of numerous clinical studies with potential impact on the ventilatory management of critically ill patients. Moreover, the evolving concept of evidence – based medicine determined the grading of clinical recommendations according to the methodological value of the studies on which they are based. This explicit approach has broadened the understanding and adoption of clinical recommendations. For these reasons, AMIB – Associação de Medicina Intensiva Brasileira and SBPT – Sociedade Brasileira de Pneumologia e Tisiologia – decided to update the recommendations of the II Brazilian Consensus. Non-Invasive Mechanical ventilation has been one of the updated topics. Describe the most important topics on the non-invasive mechanical ventilation and suggest the main therapeutic approaches of this modality. METHODS: Systematic review of the published literature and gradation of the studies in levels of evidence, using the keywords “non-invasive mechanical ventilation”. RESULTS: Recommendations on the non-invasive mechanical ventilation during respiratory failure and weaning are presented. CONCLUSIONS: Non-invasive mechanical ventilation is the main form of ventilatory support during exacerbation of chronic obstructive pulmonary disease and in acute pulmonary edema patients.
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Case reports Child Coronavirus infections COVID-19 Critical care Critical illness Extracorporeal membrane oxygenation Infant, newborn Intensive care Intensive care units Intensive care units, pediatric mechanical ventilation Mortality Physical therapy modalities Prognosis Respiration, artificial Respiratory insufficiency risk factors SARS-CoV-2 Sepsis