Browsing by Author "Hernández Poblete, Glenn Wilson"

Now showing 1 - 5 of 5
  • Thumbnail Image
    Item
    High-volume hemofiltration as salvage therapy in severe hyperdynamic septic shock
    (2006) Cornejo, Rodrigo; Downey Concha, Patricio; Castro López, Ricardo; Romero, Carlos; Regueira Heskia, Tomás Emilio; Vega Stieb, Jorge Enrique; Castillo Fuenzalida, Luis Benito; Andresen Hernández, Max Alfonso; Dougnac Labatut, Alberto; Bugedo Tarraza, Guillermo; Hernández Poblete, Glenn Wilson
  • Thumbnail Image
    Item
    Lactate-guided resuscitation saves lives: We are not sure
    (2016) Bakker, Jan; de Backer, Daniel; Hernández Poblete, Glenn Wilson
  • Thumbnail Image
    Item
    Manejo del paciente en shock séptico
    (Ediciones Doyma, S.L., 2011) Bruhn Cruz, Alejandro Rodrigo; Pairumani Medrano, Ronald; Hernández Poblete, Glenn Wilson
    El shock séptico es la manifestación más grave de una infección. Esta se produce como consecuencia de una respuesta inflamatoria sistémica severa que lleva a un colapso cardiovascular y/o microcirculatorio, y a hipoperfusión tisular. La hipoperfusión constituye el elemento central que define la condición de shock y esta debe ser detectada y revertida en forma urgente desde la atención inicial. La evaluación de la perfusión periférica, la diuresis, y la medición del lactato y de la saturación venosa central, son las principales herramientas para evaluar la perfusión sistémica.La reanimación debe comenzar en forma inmediata con la administración agresiva de fluidos, la cual puede ser guiada por parámetros dinámicos de respuesta a fluidos, y continuada hasta normalizar u optimizar las metas de perfusión. En forma paralela se debe iniciar vasopresores en caso de hipotensión marcada, siendo el agente de elección noradrenalina, y conectar precozmente al paciente a ventilación mecánica frente a hipoperfusión severa que no responde a fluidos, o frente a un aumento del trabajo respiratorio. Adicionalmente, el foco infeccioso debe ser tratado agresivamente iniciando antibióticos lo antes posible.
  • No Thumbnail Available
    Item
    Personalized Hemodynamic Resuscitation Targeting Capillary Refill Time in Early Septic Shock
    (2025) Hernández Poblete, Glenn Wilson; Ospina-Tascón, Gustavo A.; Kattan Tala, Eduardo José; Ibarra-Estrada, Miguel; Ramasco, Fernando; Orozco, Nicolás; Ramos, Karla; Luis Aldana, José; Ferri, Giorgio; Hamzaoui, Olfa; De Backer, Daniel; Teboul, Jean-Louis; Vieillard-Baron, Antoine; Petri Damiani, Lucas; García-Gallardo, Gustavo A.; Morales Zapata, Sebastián Andrés; Carmona García, Paula; Amthauer Rojas, Macarena Paz; Alegria Vargas, Leyla; Bakker, Jan
    Importance: The optimal strategy for hemodynamic resuscitation in early septic shock remains uncertain.Objective: To determine the effect of a personalized hemodynamic resuscitation protocol targeting capillary refill time (CRT-PHR) on a hierarchical composite outcome of mortality, duration of vital support, and length of hospital stay.Design, setting, and participants: This randomized clinical trial was conducted in 86 centers in 19 countries. Patients within the first 4 hours of septic shock were included between March 2022 and April 2025, with last follow-up in July 2025.Interventions: Patients were randomized to undergo CRT-PHR (n = 720), including assessment of pulse pressure, diastolic arterial pressure, fluid responsiveness, and bedside echocardiography, to tailor fluids, vasopressors, and inotropes, vs usual care (n = 747).Main outcomes and measures: The primary outcome was a hierarchical composite of mortality, duration of vital support (vasoactives, mechanical ventilation, and kidney replacement therapy), and length of hospital stay assessed at 28 days. A win ratio was calculated for the primary outcome by comparing all possible patient pairs, starting with the first event in the hierarchy and stratified by median APACHE (Acute Physiology and Chronic Health Evaluation) II score at admission. Secondary outcomes were mortality, vital support-free days, and length of hospital stay at 28 days.Results: From 1501 randomized patients, 1467 were included in the primary analysis (mean age, 66 [17] years; 43.3% female). There were 131 131 wins (48.9%) in the CRT-PHR group vs 112 787 (42.1%) in the usual care group for the hierarchical composite primary outcome, with a win ratio of 1.16 (95% CI, 1.02-1.33; P = .04). Individual wins for death were 19.1% vs 17.8%; duration of vital support, 26.4% vs 21.1%; and length of hospital stay, 3.4% vs 3.2% in the intervention vs usual care groups, respectively.Conclusions and relevance: Among patients with early septic shock, a personalized hemodynamic resuscitation protocol targeting capillary refill time was superior to usual care for the primary composite outcome, primarily due to a lower duration of vital support.
  • Thumbnail Image
    Item
    The intricate relationship between capillary refill time and systemic hemodynamics in septic shock
    (2025) Hernández Poblete, Glenn Wilson; Kattan Tala, Eduardo José; Ospina Tascón, Gustavo; Bravo Morales, Sebastián Ignacio; Orozco, Nicolás; García Gallardo, Gustavo; Amthauer Rojas, Macarena Paz; Luo, Jing-Chao; Bakker, Jan
    The emergence and validation of capillary refill time (CRT) as a resuscitation target together with its rapid kinetics of response to increases in systemic blood flow makes it the ideal variable to assess clinical reperfusion and the status of macro-to-microcirculatory coupling in septic shock. Moreover, previous studies have shown that resuscitation can be safely stopped after CRT normalization, thus decreasing the risk of over-resuscitation. From a physiological point of view, CRT is a complex variable integrating microvascular flow and reactivity. Additionally, it may be understood as a dynamic test that evaluates the preservation or disruption of normal responses of the microcirculation to maintain blood flow after transient ischemic challenges. The relationship between systemic hemodynamics and CRT is complex. Indeed, single time-point asssessments of CRT are not able to predict absolute cardiac output values and this is logical since they belong to different phsyiological categories. An abnormal CRT may be explained by insufficient macrohemodynamic resuscitation but also by several derangements at the microvascular level that may preclude CRT normalization, thus signaling a state of macro-to-microcirculatory uncoupling. CRT response to an acute fluid or mean arterial pressure challenge, may not only reveal the adequacy of systemic blood flow but also contribute to tailor interventions to personalize septic shock resuscitation. The lack of CRT response to these challenges discloses a more complex pathophysiological condition that is associated with higher mortality. Further research efforts should be focused on better understanding the factors associated with CRT non-response as a first step to develop a more phsyiologically-based resuscitation, that could eventually improve outcomes.