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Sökning: WFRF:(Eastwood Glenn M) > Lipcsey Miklós

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  • Lipcsey, Miklos, et al. (författare)
  • Near-infrared spectroscopy of the thenar eminence : comparison of dynamic testing protocols
  • 2012
  • Ingår i: Critical Care and Resuscitation. - 1441-2772. ; 14:2, s. 142-147
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Near-infrared spectroscopy of the thenar eminence (NIRSth) is a non-invasive bedside method for assessing tissue oxygenation. The vascular occlusion test (VOT) with a pressure cuff can be used to provide a dynamic assessment of the tissue oxygenation response to ischaemia. VOT has been applied to assess the microcirculation by NIRSth in critically ill patients. The optimal mode of performing such VOT, however, remains controversial. Design, participants and setting: Prospective observational study among a cohort of 11 healthy volunteers in a tertiary intensive care department. Intervention: Measurement of NIRS-derived parameters using 1-, 2- and 3-minute VOTs or VOT to 40% tissue oxygen saturation (StO(2)). Main outcome measure: Changes in StO(2) and tissue haemoglobin index (THI) over time, and relative change from baseline for StO(2) and THI. Results: Mean baseline StO(2) was 80% (SD, 5%) and mean THI was 13.7 (SD, 1.9). The lowest StO(2) at the end of the VOT was 39% (SD, 13%) and 39% (SD, 2%) in the 3-minute and the 40% StO(2) VOTs, respectively. The duration of the 40% StO(2) VOT ranged from 1:35 to 8:21 minutes (median, 3:29 min). There was a difference between the StO(2) curves for the 3-minute and 40% StO(2) VOT (P = 0.005) but not the THI curves. Reported pain score was a median of 3.5 (IQR, 2.5-5.5) and 4 (IQR 2-4) for the 3-minute and 40% StO(2) VOTs, respectively. Conclusions: The 3-minute VOT and the 40% StO(2) appear equivalent. However, the 3-minute VOT carries a degree of decreased patient discomfort and shorter overall duration of execution.
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3.
  • Schneider, Antoine G, et al. (författare)
  • Arterial carbon dioxide tension and outcome in patients admitted to the intensive care unit after cardiac arrest
  • 2013
  • Ingår i: Resuscitation. - : Elsevier BV. - 0300-9572 .- 1873-1570. ; 84:7, s. 927-934
  • Tidskriftsartikel (refereegranskat)abstract
    • BackgroundArterial carbon dioxide tension (PaCO2) affects neuronal function and cerebral blood flow. However, its association with outcome in patients admitted to intensive care unit (ICU) after cardiac arrest (CA) has not been evaluated.Methods and resultsObservational cohort study using data from the Australian New Zealand (ANZ) Intensive Care Society Adult-Patient-Database (ANZICS-APD). Outcomes analyses were adjusted for illness severity, co-morbidities, hypothermia, treatment limitations, age, year of admission, glucose, source of admission, PaO2 and propensity score.We studied 16,542 consecutive patients admitted to 125 ANZ ICUs after CA between 2000 and 2011. Using the APD-PaCO2 (obtained within 24 h of ICU admission), 3010 (18.2%) were classified into the hypo- (PaCO2 < 35 mmHg), 6705 (40.5%) into the normo- (35–45 mmHg) and 6827 (41.3%) into the hypercapnia (>45 mmHg) group. The hypocapnia group, compared with the normocapnia group, had a trend toward higher in-hospital mortality (OR 1.12 [95% CI 1.00–1.24, p = 0.04]), lower rate of discharge home (OR 0.81 [0.70–0.94, p < 0.01]) and higher likelihood of fulfilling composite adverse outcome of death and no discharge home (OR 1.23 [1.10–1.37, p < 0.001]). In contrast, the hypercapnia group had similar in-hospital mortality (OR 1.06 [0.97–1.15, p = 0.19]) but higher rate of discharge home among survivors (OR 1.16 [1.03–1.32, p = 0.01]) and similar likelihood of fulfilling the composite outcome (OR 0.97 [0.89–1.06, p = 0.52]). Cox-proportional hazards modelling supported these findings.ConclusionsHypo- and hypercapnia are common after ICU admission post-CA. Compared with normocapnia, hypocapnia was independently associated with worse clinical outcomes and hypercapnia a greater likelihood of discharge home among survivors.
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4.
  • Suzuki, Satoshi, et al. (författare)
  • Pulse pressure variation-guided fluid therapy after cardiac surgery : A pilot before-and-after trial
  • 2014
  • Ingår i: Journal of critical care. - : Elsevier BV. - 0883-9441 .- 1557-8615. ; 29:6, s. 992-996
  • Tidskriftsartikel (refereegranskat)abstract
    • Purpose: The aim of this study is to study the feasibility, safety, and physiological effects of pulse pressure variation (PPV)-guided fluid therapy in patients after cardiac surgery. Materials and methods: We conducted a pilot prospective before-and-after study during mandatory ventilation after cardiac surgery in a tertiary intensive care unit. We introduced a protocol to deliver a fluid bolus for a PPV >= 13% for at least >10 minutes during the intervention period. Results: We studied 45 control patients and 53 intervention patients. During the intervention period, clinicians administered a fluid bolus on 79% of the defined PPV trigger episodes. Median total fluid intake was similar between 2 groups during mandatory ventilation (1297 mL[interquartile range 549-1968] vs 1481 mL [807-2563]; P =. 17) and the first 24 hours (3046 mL [interquartile range 2317-3982] vs 3017 mL [2192-4028]; P = .73). After adjusting for several baseline factors, PPV-guided fluid management significantly increased fluid intake during mandatory ventilation (P = .004) but not during the first 24 hours (P = .47). Pulse pressure variation-guided fluid therapy, however, did not significantly affect hemodynamic, renal, and metabolic variables. No serious adverse events were noted. Conclusions: Pulse pressure variation-guided fluid management was feasible and safe during mandatory ventilation after cardiac surgery. However, its advantages may be clinically small.
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