viernes, 11 de marzo de 2016

Más de neumonía / More on pneumonia

Marzo 8, 2016. No. 2259




Antibióticos nebulizados en NAV. Revisión sistemática y meta-análisis
Nebulized antibiotics for ventilator-associated pneumonia: a systematic review and meta-analysis.
Crit Care. 2015 Apr 7;19:150. doi: 10.1186/s13054-015-0868-y.
CONCLUSIONS: Nebulized antibiotics seem to be associated with higher rates of clinical cure in the treatment of ventilator-associated pneumonia. However, the apparent benefit in the clinical cure rate observed by traditional meta-analysis does not persist after trial sequential analysis. Additional high-quality studies on this subject are highly warranted.
TRIAL REGISTRATION NUMBER: CRD42014009116 . Registered 29 March 2014.
Colistina para infección pulmonar. Una actualización
Colistin for lung infection: an update.
These finding stresses to use high loading as well as high maintenance dose of intravenous colistin. It is not only suboptimal plasma concentration of colistin but also poor lung tissue concentration, which has been demonstrated in recent studies, poses major concern in using intravenous colistin. Combination therapy mainly with carbapenems shows synergistic effect. In recent studies, inhaled colistin has been found promising in treatment of lung infection due to MDR gram-negative bacteria. New evidence shows less toxicity than previously reported.
KEYWORDS: Colistin; Critically ill; Lung infection; Pneumonia; Ventilator-associated pneumonia
¿Como evitar microaspiración? Un element clave en la prevención de NAV en pacientes intubados en UCI
How to avoid microaspiration? A key element for the prevention of ventilator-associated pneumonia in intubated ICU patients.
BMC Infect Dis. 2014 Nov 28;14:119. doi: 10.1186/1471-2334-14-119.
Abstract
Microaspiration of subglottic secretions through channels formed by folds in high volume-low pressure poly-vinyl chloride cuffs of endotracheal tubes is considered a significant pathogenic mechanism of ventilator-associated pneumonia (VAP). Therefore a series of prevention measures target the avoidance of microaspiration. However, although some of these can minimize microaspiration, benefits in terms of VAP prevention are not always obvious. Polyurethane-cuffed endotracheal tubes successfully reduce microaspiration but high quality data demonstrating VAP rate reduction are lacking. An analogous conclusion can be made regarding taper-shaped cuffs compared with classic barrel-shaped cuffs. More clinical data regarding these endotracheal tube designs are needed to demonstrate clinical value in addition to in vitro-based evidence. The clinical usefulness of endotracheal tubes developed for subglottic secretions drainage is established in multiple studies and confirmed by meta-analysis. Any change in cuff design will fail to prevent microaspiration if the cuff is insufficiently inflated. At least one well-designed trial demonstrated that continuous cuff pressure monitoring and control decrease the risk of VAP. Gel lubrication of the cuff prior to intubation temporarily hampers microaspiration through sludging the channels formed by folds in high volume-low pressure cuffs. As the beneficial effect of gel lubrication is temporarily, its potential to reduce VAP risk is probably nonsignificant. A minimum positive end-expiratory pressure of at least 5 cmH2O can be recommended as it reduces the risk of microaspiration in vitro and in vivo. One randomized controlled study demonstrated a reduced risk of VAP in patients ventilated with PEEP (5-8 cmH2O). Regarding head-of-bed elevation, it can be recommended to avoid supine positioning. Whether a 45° head-of-bed elevation is to be preferred above 25-30° head-of-bed elevation remains unproven. Finally, the routine monitoring of gastric residual volumes in mechanically ventilated patients receiving enteral nutrition cannot be recommended.
CEEA Veracruz


          
Anestesiología y Medicina del Dolor

52 664 6848905

Copyright © 2015

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Heparina en tromboembolismo / Heparins for venous thromboembolism

Marzo 11, 2016. No. 2262


 



Guías del manejo práctico de anticoagulación con heparinas en el tratamiento de tromboembolismo venoso
Guidance for the practical management of the heparin anticoagulants in the treatment of venous thromboembolism.
J Thromb Thrombolysis. 2016 Jan;41(1):165-86. doi: 10.1007/s11239-015-1315-2.
Abstract
Venous thromboembolism (VTE) is a serious and often fatal medical condition with an increasing incidence. Despite the changing landscape of VTE treatment with the introduction of the new direct oral anticoagulants many uncertainties remain regarding the optimal use of traditional parenteral agents. This manuscript, initiated by the Anticoagulation Forum, provides clinical guidance based on existing guidelines and consensus expert opinion where guidelines are lacking. This specific chapter addresses the practical management of heparins including low molecular weight heparins and fondaparinux. For each anticoagulant a list of the most common practice related questions were created. Each question was addressed using a brief focused literature review followed by a multidisciplinary consensus guidance recommendation. Issues addressed included initial anticoagulant dosing recommendations, recommended baseline laboratory monitoring, managing dose adjustments, evidence to support a relationship between laboratory tests and meaningful clinical outcomes, special patient populations including extremes of weight and renal impairment, duration of necessary parenteral therapy during the transition to oral therapy, candidates for outpatient treatment where appropriate and management of over-anticoagulation and adverse effects including bleeding and heparin induced thrombocytopenia. This article concludes with a concise table of clinicalmanagement questions and guidance recommendations to provide a quick reference for the practical management of heparin, low molecular weightheparin and fondaparinux.
KEYWORDS: Anticoagulation; Dalteparin; Direct oral anticoagulants (DOAC); Enoxaparin; Fondaparinux; Heparin; Low molecular weight heparin; New oralanticoagulants (NOAC); Venous thromboembolism
CEEA Veracruz


          
Anestesiología y Medicina del Dolor

52 664 6848905

Copyright © 2015