RT info:eu-repo/semantics/article T1 Evolution of neutrophil apoptosis in septic shock survivors and nonsurvivors A1 Tamayo-Gómez, Eduardo A1 Gómez, Esther A1 Bustamante, Juan A1 Gómez-Herreras, José Ignacio A1 Fonteriz, Rosalba A1 Bobillo, Felipe A1 Bermejo-Martín, Jesús F A1 Castrodeza, Javier A1 Heredia, María A1 Fierro, Inma A1 Álvarez, Francisco Javier K1 Apoptosis K1 Neutrophil K1 Septic shock K1 Mortality K1 Survivors AB Purpose: The aims were to analyze the temporal evolution of neutrophil apoptosis, to determine thedifferences in neutrophil apoptosis among 28-day survivors and nonsurvivors, and to evaluate the use ofneutrophil apoptosis as a predictor of mortality in patients with septic shock.Materials and Methods: Prospective multicenter observational study carried out between July 2006 andJune 2009. The staining solution study included 80 patients with septic shock and 25 healthy volunteers.Neutrophil apoptosis was assessed by fluorescein isothiocyanate (FITC)–conjugated annexin V andaminoactinomycin D staining.Results: The percentage of neutrophil apoptosis was significantly decreased at 24 hours, 5 days, and 12days after the diagnosis of septic shock (14.8% ± 13.4%, 13.4% ± 8.4%, and 15.4% ± 12.8%, respectively;P b .0001) compared with the control group (37.6% ± 12.8%). The difference in apoptosis between 28-daysurviving and nonsurviving patients was nonsignificant (P N .05). The mortality rate at 28 days was 53.7%.The crude hazard ratio for mortality in patients with septic shock did not differ according to the percentage of apoptosis (hazard ratio, 1.006; 95% confidence interval, 0.98-1.03; P = .60).Conclusions: During the first 12 days of septic shock development, the level of neutrophil apoptosisdecreases and does not recover normal values. No differences were observed between surviving andnonsurviving patients. SN 0883-9441 YR 2012 FD 2012 LK https://uvadoc.uva.es/handle/10324/82888 UL https://uvadoc.uva.es/handle/10324/82888 LA spa NO J Crit Care, 2012, Aug; 27(4):415.e1-11. NO Producción Científica DS UVaDOC RD 22-feb-2026