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Старый 31.03.2010, 13:06
zubarew
Гость
 
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Хотя я ранее неоднократно ломал копья в споре с оппонентами (на параллельных форумах), выступая за максимально рестриктивное использование альбумина и искусственных коллоидов у критических больных, недавно попались мне пару интересных статей, в которых показан позитивный эффект оных субстанций, по сравнению с кристаллоидами у некоторых популяций больных. Хочу их здесь процитировать:

Albumin Administration Improves Organ Function In Critically Ill Hypoalbuminemic Patients: A Prospective, Randomized, Controlled, Pilot study

Marc-Jacques Dubois, Carlos Orellana-Jimenez, Christian Melot, et al.
Crit Care Med. 2006;34(10):2536-2540


Abstract

Objective: To test the hypothesis that administration of albumin to correct hypoalbuminemia might have beneficial effects on organ function in a mixed population of critically ill patients.
Design: Prospective, controlled, randomized study.
Setting: Thirty-one-bed, mixed medicosurgical department of intensive care.
Patients: All adult patients with a serum albumin concentration =30 g/L were assessed for eligibility. Principal exclusion criteria were expected length of stay <72 hrs, life expectancy <3 months or a do-not-resuscitate order, albumin administration in the preceding 24 hrs, or evidence of fluid overload.
Interventions: The 100 patients were randomized to receive 300 mL of 20% albumin solution on the first day, then 200 mL/day provided their serum albumin concentration was <31 g/dL (albumin group), or to receive no albumin (control group).
Measurements and Main Results: The primary outcome was the effect of albumin administration on organ function as assessed by a delta Sequential Organ Failure Assessment score from day 1 to day 7 (or the day of intensive care discharge or death, whichever came first). The two groups of 50 patients were comparable at baseline for age, gender, albumin concentration, and Acute Physiology and Chronic Health Evaluation II score. Albumin concentration did not change over time in the control group but increased consistently in the albumin group (p < .001). Organ function improved more in the albumin than in the control group (p = .026), mainly due to a difference in respiratory, cardiovascular, and central nervous system components of the Sequential Organ Failure Assessment score. Diuretic use was identical in both groups, but mean fluid gain was almost three times higher in the control group (1679 ± 1156 vs. 658 ± 1101 mL, p = .04). Median daily calorie intake was higher in the albumin than in the control group (1122 [935-1158] vs. 760 [571-1077] kcal, p = .05).

Conclusions: Albumin administration may improve organ function in hypoalbuminemic critically ill patients. It results in a less positive fluid balance and a better tolerance to enteral feeding.

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Effects of hydroxyethyl starch resuscitation on extravascular lung water and pulmonary permeability in sepsis-related acute respiratory distress syndrome

Huang, Chung-Chi; Kao, Kuo-Chin; Hsu, Kuang-Hung; Ko, How-Wen; et al.
Critical Care Medicine: June 2009 - Volume 37 - Issue 6 - pp 1948-1955


Abstract

Objective: Hydroxyethyl starch (HES) has greater volume expansion effect and longer intravascular persistence than crystalloids. HES also decreases microvascular permeability and capillary leakage by biophysically plugging endothelial leaks, exerting an anti-inflammatory effect, and decreasing activation of endothelial cells. The aim of our study was to determine whether medium molecular weight HES (pentastarch) resuscitation in the early stage of acute respiratory distress syndrome (ARDS) simultaneously increases cardiac output without worsening pulmonary edema and whether it attenuates pulmonary vascular permeability.
Design: Prospective observational study.
Setting: Twenty-bed medical intensive care unit of a tertiary medical center.
Patients: Twenty patients with early-stage ARDS.
Intervention: Volume expansion with a 500-mL infusion of 10% pentastarch (HES 200/0.5) at a rate of 10 mL/kg/hr.
Measurements and Main Results: Baseline hemodynamics including systemic and pulmonary artery blood pressures, central venous pressure, pulmonary artery occlusion pressure, and cardiac output were obtained from an online HP Component Monitoring System and a pulmonary artery catheter. Intrathoracic blood volume (ITBV), global end-diastolic volume, extravascular lung water (EVLW), and pulmonary vascular permeability (EVLW/ITBV) were measured with a PiCCOplus monitor. Hemodynamic measurements were repeated immediately and 2, 4, and 6 hours after volume expansion. Pentastarch loading significantly increased central venous pressure, pulmonary artery occlusion pressure, pulmonary arterial pressures, and cardiac output. Pulmonary mechanics, venous admixtures, and EVLW values remained unchanged throughout the study. EVLW/ITBV significantly decreased immediately after the pentastarch infusion.

Conclusions: In patients with early ARDS, pentastarch resuscitation significantly improved their hemodynamics and cardiac output without worsening pulmonary edema and pulmonary mechanics. It even attenuated pulmonary vascular permeability.

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