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1.
Vasc Med ; 28(5): 387-396, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-37249001

RESUMO

BACKGROUND: Inflammation and immune dysregulation have been associated with adverse outcomes in cardiovascular disease. There is limited understanding of the association of different profiles of white blood cell (WBC) subsets and red cell distribution width (RDW) in patients with chronic limb-threatening ischemia (CLTI). METHODS: Patients with CLTI undergoing endovascular revascularization in our single-center, tertiary care hospital from 2017 to 2019, who had a preceding complete blood count (CBC) with WBC differentials (n =213), were included in the analysis. Patient characteristics, laboratory values, and clinical outcomes were collected. Cox proportional hazards regression models were used to assess for associations between all-cause mortality and leukocyte subset; multivariate analysis was used to account for confounders. Kaplan-Meier curves were generated to depict survival censored at 1 year postrevascularization using baseline CBC indices. RESULTS: Adjusting for confounders, elevated RDW was associated with increased mortality (continuous per % increase, adjusted hazard ratio [HR] 1.33, p < 0.001). Baseline lymphopenia was associated with mortality in univariate analysis. Other leukocyte subtypes were not associated with mortality outcomes in our population. Exploratory analysis showed negative deflections in ∆WBC from pre- to postprocedure day 1 were affiliated with increased mortality when adjusted for age, sex, race, chronic kidney disease, and baseline hemoglobin (∆WBC HR 1.16, p = 0.004). Further exploratory analysis showed an association between RDW and all-comers readmission. CONCLUSIONS: The utilization of a periprocedural WBC subset differential can be a useful adjunct to risk-stratify patients with CLTI undergoing endovascular revascularization. Further studies are needed to understand potential ways to modulate immune dysregulation so as to improve mortality outcomes.


Assuntos
Procedimentos Endovasculares , Doença Arterial Periférica , Humanos , Isquemia Crônica Crítica de Membro , Fatores de Risco , Procedimentos Endovasculares/efeitos adversos , Salvamento de Membro , Doença Arterial Periférica/diagnóstico , Doença Arterial Periférica/cirurgia , Resultado do Tratamento , Isquemia/diagnóstico , Isquemia/cirurgia , Doença Crônica , Estudos Retrospectivos
2.
Br Med Bull ; 122(1): 5-15, 2017 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-28444125

RESUMO

Introduction: Sudden cardiac arrest continues to be the leading cause of death in the industrialized world. Sources of data: Original papers, reviews and guidelines. Areas of agreement: Community programs for lay bystander cardiopulmonary resuscitation (CPR) and automatic external defibrillation improve outcomes. Post-arrest care, including targeted temperature management (TTM) combined with early coronary angiography and percutaneous coronary intervention, is helpful for those suffering cardiac arrest during an ST-segment elevation myocardial infarction. Areas of controversy: (1) The optimal approach to encourage lay bystanders to assist with resuscitation efforts. (2) Whether TTM combined with early coronary angiography is cost effective for those without ST elevation on their post-arrest ECG is unknown. Growing points: Increasing data show that chest compression-only CPR is preferred by lay rescuers and improves local survival rates. Areas timely for developing research: Randomized clinical trials are underway to examine the utility of early coronary angiography in the treatment of post-arrest patients without ST-segment elevation.


Assuntos
Reanimação Cardiopulmonar , Morte Súbita Cardíaca/prevenção & controle , Parada Cardíaca Extra-Hospitalar/terapia , Cardioversão Elétrica , Humanos , Resultado do Tratamento
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