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1.
Acta Cardiol ; : 1-6, 2024 Jun 18.
Article in English | MEDLINE | ID: mdl-38888102

ABSTRACT

BACKGROUND: Effective treatment of non-ST-segment elevation acute coronary syndromes (NSTEACS) requires careful assessment of both ischaemic and bleeding risks. We aimed to analyse risk distribution and evaluate antiplatelet prescription behaviours in real-life settings. METHODS: Data from 1100 NSTEACS patients in Buenos Aires, Argentina, from the Buenos Aires I Registry, with a 15-month follow-up, were analysed. In-hospital and 6-month GRACE scores, CRUSADE, and Precise DAPT scores were calculated. RESULTS: The mean age was 65.4 ± 11.5 years with a majority being male (77.2%). In-hospital mortality was 2.7%, primarily due to cardiovascular causes (1.8%). Bleeding events occurred in 20.9% of patients, with 4.9% classified as ≥ BARC 3. Predominance of low bleeding (71.3%) and ischaemic (55.8%) risks on admission was observed. At 6 months, the low-risk Precise category (70.9%) and GRACE (44.1%) categories prevailed. Linear correlation analysis showed a moderately positive correlation (r = 0.61, p < .05) between ischaemic-haemorrhagic risks. Regarding the prescription of antiplatelet agents, in the low ischaemic-haemorrhagic risk group, there was a predominance of aspirin + clopidogrel (41.2%) over other high-potency antiplatelet regimens (aspirin + ticagrelor or prasugrel). In the low ischaemic and high haemorrhagic risk group, aspirin and clopidogrel were also predominant (58%). CONCLUSIONS: Our analysis underscores the significant relationship between ischaemic and haemorrhagic risks during NSTEACS hospitalisation. Despite the majority of patients falling into the low-intermediate risk category, the prescription of P2Y12 inhibitors in real-life settings does not consistently align with these risks.

2.
Article in English | MEDLINE | ID: mdl-38596606

ABSTRACT

Objectives: To identify predictors of coronary artery bypass graft surgery (CABG) requirement as a revascularization method in in real-world non-ST-segment elevation acute coronary syndrome (NSTE-ACS) patients. Materials and methods: . An individual pre-specified analysis of patients with NSTE-ACS was performed from two prospective Argentine registries between 2017 and 2022. We analyzed the difference in baseline characteristics between patients who required CABG and those who did not require this intervention. Then, a logistic regression analysis was performed to determine independent predictors in patients who received CABG as a method of revascularization. Results: A total of 1848 patients with a median age of 54.8 (interquartile range [IQR]: 53.7-56) years and an ejection fraction of 42.1% (IQR: 41.2-43.1) were included. A total of 233 patients required CABG (12.6%). Baseline characteristics between the two groups were similar, except in patients requiring CABG, who were younger (51.5 vs. 55.7 years; p=0.010), more frequently diabetic (38.2% vs. 25.7%; p=0.001) and male (90.1% vs. 73.7%; p=0.001). In addition, they had, to a lesser extent, previous cardiac surgery (2.1% vs. 11.2%; p=0.011). After multivariable analysis, the following were independently associated with CABG: age (Odds Ratio [OR]: 0.99, 95% confidence interval [CI]: 0.98-0.99; p=0.008), male sex (OR: 3.08, 95% CI: 1.87-5.1; p=0.001), history of previous CABG (OR: 0.14, 95% CI: 0.05-0.30; p=0.001) and diabetes (OR: 1.84, 95% CI: 1.31- 2.57; p=0.001). Conclusions: In this analysis of two NSTEACS registries, younger age, male sex, a diagnosis of diabetes and the absence of previous surgery were independent predictors of the requirement for inpatient CABG.

3.
Article in Spanish | MEDLINE | ID: mdl-38046231

ABSTRACT

Objectives: To evaluate the rate of use of antiplatelet pretreatment in patients with non-ST elevated acute coronary syndrome (NSTEACS) and its association with adverse events in two Argentine registries. Materials and methods: We retrospectively analyzed two Argentine acute coronary syndrome (ACS) registries from 2017 and 2022. We explored the incidence of pretreatment and the drug used. We evaluated the relationship between this strategy and a composite clinical outcome of in-hospital events: death + myocardial infarction + stent thrombosis + post-MI angina + transient ischemic event/cerebrovascular event, and with bleeding events (BARC 2 or higher). Subsequently, we performed a multivariate analysis by logistic regression with other clinical variables. Results: A total of 1297 patients were included; 75.6% were men, 25.6% diabetics, 27.1% smokers, 70.3% hypertensive, and 23.1% had a previous ACS. The mean age was 55.3 years. The mean GRACE score was 113.5, and the CRUSADE was 23.8. 44% of the patients received pretreatment, the majority with clopidogrel (93.5%). Pretreatment was significantly associated with a higher incidence of the composite clinical outcome (10.1% vs. 6.9%) (OR 1,56; IC 95%: 1,06-2,3; p=0,02). Bleeding events were numerically more frequent with pretreatment (8.7% vs. 5.9%) (OR 1,51; IC95%: 0,99 -2,3; p=0,054). In the multivariate analysis, pretreatment was no longer associated with a higher incidence of ischemic outcomes (OR 1,4; IC95%: 0,89-2,3; p=0,13). Conclusion: Pretreatment was used in almost half of the patients, mainly with clopidogrel, and did not show a reduction in ischemic events in patients with NSTACS.

4.
Rev. argent. cardiol ; 91(3): 205-211, oct. 2023. graf
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1535484

ABSTRACT

RESUMEN Introducción : Realizamos un registro multicéntrico para analizar el abordaje diagnóstico y terapéutico de todos los tipos de síndromes coronarios agudos; este registro es el primero en abordar en detalle aquellos cuadros que cursan sin enfermedad coronaria epicárdica significativa. Es importante conocer la realidad del actual accionar médico con el objeto de hallar oportunidades de mejora. Material y métodos : Se registraron en forma prospectiva pacientes hospitalizados por síndrome coronario agudo en 15 centros de Argentina, con diagnóstico con troponina ultrasensible, servicio de unidad coronaria y hemodinamia disponible las 24 horas, entre enero y agosto de 2022. Resultados : Se incluyeron 984 pacientes consecutivos, un 22,2% con angina inestable, 39,1% con infarto agudo de miocardio sin elevación del segmento ST (IAMSEST) y 24,1% con infarto agudo de miocardio con elevación del segmento ST (IAMCEST). Por otro lado, el 4,1% se presentó como IAM tipo 2, 1,2% como miocarditis, 0,7% como síndrome de Takotsubo y 8,6% como infarto de miocardio con enfermedad coronaria no obstructiva (MINOCA). La mediana (rango intercuartílico, RIC) de edad fue de 66 años (56,5-74), con un 75,3% de pacientes de sexo masculino. El manejo inicial de los pacientes sin elevación del segmento ST fue invasivo en el 84%, con una tasa de enfermedad coronaria significativa del 76,5%. En cuanto a la evolución intrahospitalaria, las complicaciones isquémicas más relevantes fueron el reinfarto (2,84%), angina recurrente (2,4%), angina post infarto (2%) y trombosis intra stent (0,5%). El porcentaje de eventos hemorrágicos totales fue de 4,4% y la mortalidad intrahospitalaria total fue de 3,76%. Conclusiones : El registro tiene una buena representación del espectro de pacientes con sospecha inicial de síndrome coronario agudo, manejados en centros con una estrategia inicial principalmente invasiva, con una baja tasa de complicaciones hospitalarias y una mortalidad global aceptable.


ABSTRACT Background : We conducted a multicenter registry to analyze the diagnostic and therapeutic approach to all types of acute coronary syndromes; this registry is the first to provide detailed information on conditions without significant epicardial coronary artery disease. Knowing the reality of current medical practice is important to find opportunities for improvement. Methods : Patients hospitalized for acute coronary syndrome between January and August 2022 in 15 centers of Argentina, with high-sensitivity cardiac troponin, coronary care unit, and catheterization laboratory available 24 hours, were prospectively recorded. Results : A total of 984 consecutive patients were included, 22.2% with unstable angina, 39.1% with non-ST-segment elevation myocardial infarction (NSTEMI) and 24.1% with ST-segment elevation myocardial infarction (STEMI). Additionally, 4.1% presented as type 2 AMI, 1.2% as myocarditis, 0.7% as Takotsubo syndrome and 8.6% as myocardial infarction with non-obstructive coronary arteries (MINOCA). Median age was 66 years [interquartile range (IQR) 56.5-74] and 75.3% were men. An early invasive management was used in 84% of patients without ST segment elevation, and 76.5% of them had significant coronary artery disease. During hospitalization, 2.84% of the patients presented reinfarction, 2.43% recurrent angina, 2% postinfarction angina and 0.5% stent thrombosis. Bleeding events occurred in 4.4% of the patients, and overall in-hospital mortality was 3.76%. Conclusions : The registry has a good representation of the spectrum of patients with initial suspicion of "acute coronary syndrome", managed in centers with an invasive initial strategy and with low rate of in-hospital complications and acceptable overall mortality.

5.
Curr Probl Cardiol ; 48(6): 101113, 2023 Jun.
Article in English | MEDLINE | ID: mdl-35063478

ABSTRACT

The PRECISE-DAPT score predicts the bleeding risk in patients treated with dual antiplatelet treatment after PCI. We asess the prediction power of the score in patients suffering from non-ST elevation acute coronary syndromes. Our cohort included 862 patients from Buenos Aires 1 registry. The PRECISE-DAPT score was calculated upon admission and the follow up period was 15 months. The score as a continuous variable had low to moderate ability to predict bleeding events BARC 2, 3 or 5 (c-statistics 0.58 [95% CI, 0.52-0.61]); moderate at BARC 3 or 5 (c-statistics 0.72 [95% CI, 0.64-0.78]), and poor for MACE (c-statistics 0.49 [95% CI, 0,45-0.51]). PRECISE-DAPT score as a dichotomous variable (≥25, n= 210 [24%]) was associated with very high risk of bleeding (HR 2.1) and ischemic events (HR 1.9, 95% CI 1.8-2.1). As conclusion, PRECISE-DAPT score ≥25 was able to identify a subgroup of patients with high bleeding, and thrombotic events.


Subject(s)
Percutaneous Coronary Intervention , Platelet Aggregation Inhibitors , Humans , Platelet Aggregation Inhibitors/adverse effects , Percutaneous Coronary Intervention/adverse effects , Risk Factors , Risk Assessment , Drug Therapy, Combination , Hemorrhage/chemically induced , Hemorrhage/epidemiology , Registries , Treatment Outcome
6.
Rev. argent. cardiol ; 90(2): 105-111, abr. 2022. tab, graf
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1407124

ABSTRACT

RESUMEN Introducción: El estudio POPular AGE demostró que, en pacientes mayores de 70 años, el clopidogrel sería el inhibidor del receptor P2Y12 (iP2Y12) de elección por su asociación con menor incidencia de sangrado, sin diferencia en eventos isquémicos. Objetivos: Analizar la seguridad y eficacia de los diferentes esquemas de tratamiento con iP2Y12 en mayores de 70 años con síndrome coronario agudo sin elevación del segmento ST (SCASEST), a fin de contrastar la hipótesis "POPular AGE" en el mundo real. Material y métodos: Para el presente subanálisis del registro prospectivo BUENOS AIRES I, se analizaron datos correspondientes a 1100 pacientes de 21 centros médicos de Buenos Aires, Argentina, con seguimiento a 15 meses. Consideramos al subgrupo de pacientes mayores de 70 años, estratificados de acuerdo al iP2Y12 indicado al alta sanatorial. Resultados: Observamos gran carga de comorbilidades, con un 85,1% de hipertensión, 30,3% de diabetes mellitus y 43,2% de enfermedad renal crónica. Los pacientes tratados con ticagrelor/prasugrel (n = 54) presentaron mayor prevalencia de tabaquismo activo, menor fibrilación auricular y menor puntaje de score CRUSADE, sin diferencias en el puntaje de score GRACE, en relación a los tratados con clopidogrel (n = 286). A 15 meses de seguimiento, en la tasa, con más eventos de sangrado BARC ≥ 2 en el grupo clopidogrel (25,4% vs. 18,2%) aunque sin diferencias significativas (p = 0,327), y beneficio en la incidencia de eventos adversos cardiovasculares mayores (MACE) en el grupo de tratamiento con ticagrelor/prasugrel (18,6% vs 36,3%, p = 0,023). Conclusiones: En pacientes con SCASEST mayores de 70 años, adecuadamente seleccionados, el tratamiento con ticagrelor/ prasugrel podría ser una estrategia segura y efectiva.


ABSTRACT Background: The POPular AGE study demonstrated that in patients over 70 years of age clopidogrel would be the P2Y12 receptor inhibitor (P2Y12i) of choice due to its association with lower bleeding incidence and no difference in ischemic events. Objective: We analyzed the safety and efficacy of different treatment regimens with P2Y12i, in patients ≥70 years with nonST-segment elevation acute coronary syndromes (NSTE-ACS) to test the "POPular AGE" hypothesis in the real world. Methods: This subanalysis of the prospective BUENOS AIRES I registry analyzed data corresponding to 1100 patients from 21 medical centers in Buenos Aires, Argentina, followed-up for 15 months. We considered the subgroup of patients ≥70 years, stratified according to the P2Y12i indicated at discharge. Results: This subgroup had a high burden of comorbidities, with 85.1% hypertension, 30.3% diabetes mellitus, and 43.2% chronic kidney disease. Patients treated with ticagrelor/prasugrel (n=54) presented with higher prevalence of active smoking, less atrial fibrillation and lower CRUSADE score, with no differences in the GRACE score, compared whit those treated with clopidogrel (n=286). At the 15-month follow-up, no significant differences were observed in the BARC ≥2 bleeding rate, with more events in the clopidogrel group (25.4% vs. 18.2%; p=0.327) and a benefit in the incidence of major adverse cardiovascular events (MACE) in the ticagrelor/prasugrel treatment group (18.6% vs 36.3%, p= 0.023). Conclusions: In adequately selected patients with NSTE-ACS ≥70 years, treatment with ticagrelor/prasugrel could be a safe and effective strategy.

8.
Rev. argent. cardiol ; 89(4): 293-300, ago. 2021. tab, graf
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1356894

ABSTRACT

RESUMEN Introducción: La fibrilación auricular (FA) es la arritmia con mayor incidencia a nivel mundial y tiene una clara asociación con los síndromes coronarios agudos. El propósito de nuestro trabajo es describir la incidencia, los factores predisponentes y el pronóstico de pacientes con FA de novo luego de un síndrome coronario agudo, en una población representativa de nuestro medio. Material y métodos: Se realizó un subanálisis del registro BUENOS AIRES I, el cual incluyó 1110 pacientes con síndrome coronario agudo sin elevación del ST (SCASEST), con un seguimiento a 6 meses. Resultados: Se evidenció una incidencia del 7,7% de FA de novo y se identificaron como factores predictores independientes de su desarrollo la edad (OR 1,04; IC95% 1,02-1,08; p = 0,001), la presentación inicial con infarto agudo de miocardio (OR 2,35; IC95% 1,20-4,57; p = 0,012) y la necesidad de revascularización quirúrgica (OR 6,86; IC95% 3,95-11,89; p <0,001). Los pacientes que desarrollaron FA presentaron mayor mortalidad por todas las causas, mayor mortalidad cardiovascular y eventos de sangrado BARC ≥2. Se identificó a la FA de novo post-SCASEST como un factor predictor independiente de mortalidad cardiovascular (OR 3,67; IC95% 1,25-10,76; p = 0,018) y sangrado a 6 meses BARC ≥2 (OR 3,024; IC95% 1,49-6,11; p = 0,002). Conclusiones: Este subanálisis preespecificado del registro BUENOS AIRES I demostró una incidencia significativa de FA de novo en el contexto de un SCASEST, vinculada a una mayor edad, mayor daño estructural cardíaco agudo y requerimiento de cirugía de revascularización, y con una peor evolución en términos de eventos clínicos adversos en el seguimiento a mediano plazo.


ABSTRACT Background: Atrial fibrillation (AF) is the most prevalent cardiac arrhythmia worldwide and has a close correlation with acute coronary syndromes. The aim of our study is to describe the incidence, predisposing factors and outcome of patients with de novo AF after an acute coronary syndrome in a population representative of our environment. Methods: We conducted a sub-analysis of the BUENOS AIRES I registry, which included 1110 patients with non- ST-segment elevation acute coronary syndrome (NSTE-ACS) followed-up at 6 months. Results: The incidence of de novo AF was 7.7%. The independent predictors of de novo AF were age (OR, 1.04; 95% CI, 1.021.08; p = 0.001), initial presentation as MI (OR, 2.35; 95% CI, 1.20-4.57; p = 0.012) and requirement of myocardial revascularization surgery (OR 6.86; 95% CI 3.95-11.89; p < 0.001). Patients who developed AF had greater all-cause mortality, cardiovascular mortality and bleeding events ≥BARC type 2. The development of de novo AF after NSTE-ACS was identified as an independent predictor of cardiovascular mortality (OR, 3.67; 95% CI 1.25-10.76; p = 0.018) and of bleeding events ≥ BARC type 2 (OR, 3.024; 95% CI, 1.49-6.11; p = 0.002). Conclusions: This prespecified sub-analysis of the BUENOS AIRES I registry demonstrated a significant incidence of de novo AF in the setting of a NSTE-ACS, associated with elderly patients, greater acute myocardial structural damage and need for myocardial revascularization surgery, with worse outcome in terms of adverse clinical events at mid-term follow-up.

9.
Rev. argent. cardiol ; 89(3): 217-224, jun. 2021. tab, graf
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1356877

ABSTRACT

RESUMEN Introducción: Existe información limitada sobre estrategias de tratamiento con inhibidores del receptor P2Y12 (iP2Y12) en síndromes coronarios agudos sin elevación del segmento ST (SCASEST) en la vida real. Objetivos: Determinar la incidencia de eventos cardíacos adversos mayores (MACE)y sangrado BARC ≥2, según la estrategia de tratamiento con iP2Y12 a 6 meses. Material y métodos: Subanálisis preespecificado del registro BUENOS AIRES I (n = 1100). Se estratificó la cohorte según "pretratamiento" con iP2Y12 (antes de conocer la anatomía coronaria), o "tratamiento en sala" (luego de conocer la anatomía coronaria) y se analizó la incidencia de eventos clínicos, según: pretratamiento con clopidogrel/ticagrelor, tratamiento en sala con clopidogrel/ticagrelor. Resultados: La edad media fue 65,4 ± 11,5 años, con 77,2% de sexo masculino. El 79,72% recibió iP2Y12, el 75% como pretratamiento y 25% como tratamiento en sala. Los pacientes con pretratamiento fueron más jóvenes y con más infarto agudo de miocardio (IAM), en comparación con el subgrupo de tratamiento en sala. A los 6 meses, no hubo diferencias significativas en la incidencia de MACE (16,4% vs. 14,4%; p = 0,508), o sangrado BARC ≥2 (14,7% vs. 11,1%; p = 0,205), entre los distintos momentos de administración del iP2Y12. El tratamiento con ticagrelor presentó menos MACE en comparación con el clopidogrel (p = 0,044), sin diferencias en sangrados. No se observaron diferencias en MACE entre ticagrelor en pretratamiento o tratamiento en sala (p = 0,893). Conclusiones: El subgrupo de pacientes seleccionados para recibir pretratamiento con iP2Y12 no presentó diferencias en MACE ni sangrado en relación con los tratados en sala. Los pacientes seleccionados para su tratamiento con ticagrelor en sala presentaron un balance beneficioso entre eventos isquémicos y hemorrágicos.


ABSTRACT Background: There is limited real life information on treatment strategies with P2Y12 receptor inhibitors (P2Y12i) in nonST-segment elevation acute coronary syndromes (NSTEACS). Objectives: The aim of this study was to determine the incidence of major adverse cardiac events (MACE) and BARC bleeding ≥2, according to the treatment strategy with P2Y12i at 6 months. Methods: The study used the pre-specified subanalysis of the BUENOS AIRES I registry (n=1100). The cohort was stratified according to P2Y12i "pretreatment" (before knowing the coronary anatomy), or "ward treatment" (after knowing the coronary anatomy), and the incidence of clinical events was analyzed according to pretreatment or ward treatment with clopidogrel/ ticagrelor. Results: Mean age was 65.4 ± 11.5 years and 77.2% were male patients. In 79.72% of cases patients received P2Y12i, 75% as pretreatment and 25% as ward treatment. Pretreatment patients were younger and with greater prevalence of acute myocardial infarction (AMI) compared with the ward treatment subgroup. At 6 months, there were no significant differences in the incidence of MACE (16.4% vs. 14.4%; p = 0.508), or BARC bleeding ≥2 (14.7% vs. 11.1%; p = 0.205), between the different times of P2Y12i administration. Treatment with ticagrelor presented reduced MACE compared with clopidogrel (p = 0.044), with no difference in bleeding. No MACE differences were observed between pretreatment or in ward treatment with ticagrelor (p=0.893). Conclusions: The subgroup of patients selected to receive P2Y12i pretreatment did not present differences in MACE or bleeding relative to those treated in ward. Patients selected for ticagrelor treatment in ward presented a beneficial balance between ischemic and hemorrhagic events.

10.
Rev. argent. cardiol ; 88(4): 308-316, jul. 2020. tab, graf
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1250992

ABSTRACT

RESUMEN Introducción: El manejo de los síndromes coronarios agudos (SCA) sin elevación del segmento ST (SCASEST) ha presentado cambios en los últimos años, basados en nuevos agentes farmacológicos y en el avance de las técnicas de revascularización coronaria. El objetivo de este estudio fue determinar cómo es el manejo de los SCASEST en la actualidad, en centros de alta complejidad de la ciudad de Buenos Aires y la provincia de Buenos Aires. Métodos: Se registraron en forma prospectiva pacientes hospitalizados en 21 centros con servicio de unidad coronaria, hemodinamia disponible las 24 horas y cirugía cardíaca. Se realizó seguimiento a 6 meses del alta hospitalaria. Resultados: Se incluyeron 1 100 pacientes consecutivos; el 62,6% fue catalogado como infarto sin elevación del ST y, 37,4% como angina inestable. La edad media fue de 65,4 ± 11,5 años, con el 77,2% de sexo masculino. El 27,6% presentaba diabetes mellitus y el 31,5% infarto previo. El manejo inicial fue invasivo en el 86,7%, con una mediana de tiempo a la cinecoronariografía de 18 horas (RIC 7-27,7). En la evolución intrahospitalaria, la incidencia de nuevo infarto fue del 5,2%, el accidente cerebrovascular de 0,3% y la mortalidad total, 2,7%. La tasa de sangrado BARC ≥2 fue del 10,1%. En el seguimiento extrahospitalario a los 6 meses del alta hospitalaria, la tasa de infarto fue de 8,4%, SCA 10,9% y la mortalidad total de 5,7%. Conclusiones: El registro evidenció un abordaje terapéutico predominantemente invasivo de los pacientes con SCASEST en los centros con alta complejidad, con baja prevalencia de complicaciones intrahospitalarias y en la evolución.


ABSTRACT Introduction: The medical management of acute coronary syndromes (ACS) has changed significantly over the past few decades, primarily due to novel pharmacotherapies and improvement in coronary revascularization strategies. This registry was compiled from data from management of patient populations in high complexity centers from Buenos Aires, Argentina. Methods: Patients hospitalized in 21 centers in the city of Buenos Aires and peripheries, with a coronary unit service, hemodynamics available 24 hours and cardiac surgery are prospectively registered. Follow-up was performed at 6 months. Results: A total of 1100 patients were included; the final diagnosis was myocardial infarction in 62.% and unstable angina in 37.4%. The mean age of the population was 65.4 ± 11.5 and 77.2% were male. 27.6% of patients having diabetes mellitus, with 31.5% having a medical history of myocardial infarction. The initial management was invasive in 86.7%, with a median time for PCI of 18 hours (IQR 7-27,7). Over the course of the in-hospital stay, the rate of myocardial infarction was 5.2%, stroke 0.3% and total all-cause mortality 2.7%. The rate of in-hospital total bleeding events was 20.1%, with BARC ≥2 in 10.1% of patients. In the 6-month follow-up, the infarction rate was 8.4%, ACS 10.9%, and total mortality 5.7%. Conclusions: This registry shows the predominant usage of invasive approaches in management of patients with acute coronary syndrome without ST elevation, in high complexity medical centers. In this subset of patients, a low rate of in-hospital and follow up complications were also observed.

12.
Medicina (B Aires) ; 66(5): 385-91, 2006.
Article in Spanish | MEDLINE | ID: mdl-17137166

ABSTRACT

Patients with neutropenia and fever conform a heterogeneous population with a variable risk of serious complications and mortality. The goal of this study was to identify prognostic risk factors present at the beginning of the episode, for adverse events and serious complications in patients admitted in a general ward with fever and neutropenia. A cohort of 238 episodes with neutropenia and fever (neutrophils < 1000/mm3 and T > 38.3 00) in 167 patients admitted to our general hospital between 1997 and 2004 was followed. Eighty two percent of the patients had hematologic malignancies, 14% solid tumors and 4% were not associated with chemotherapy. Sixty seven adverse events were registered (46% renal insufficiency, 27% refractory hypotension, 15% respiratory insufficiency and 12% major bleeding). Significant differences were found in presence of current co-morbidities, body temperature > 39 00, heart rate > 120 beats per minute, respiratory rate > 24 per minute, systolic blood pressure < 90 mm Hg, presence of 3 or more altered laboratory values, presence of a clinical site of infection and positive blood cultures. The logistic regression multivariate analysis showed that the following characteristics were independently associated with adverse events: systolic blood pressure < 90 mm Hg (OR = 7, p < 0.01), current co-morbidities (OR = 8.5, p = 0.02), respiratory rate > 24 per minute (OR = 2.8, p = 0.01), and the presence of a clinical site of infection (OR = 2.1, p = 0.03). The presence of systolic hypotension, high respiratory rate, current co-morbidities and a clinical site of infection at the time of admission were identified predictors of subsequent serious complications in patients admitted with fever and neutropenia in a general ward.


Subject(s)
Fever/complications , Hospitalization , Neutropenia/complications , Acute Kidney Injury/diagnosis , Acute Kidney Injury/etiology , Adolescent , Adult , Aged , Aged, 80 and over , Antineoplastic Agents/adverse effects , Cancer Care Facilities/statistics & numerical data , Comorbidity , Diagnostic Tests, Routine , Epidemiologic Methods , Female , Fever/chemically induced , Fever/diagnosis , Humans , Hypotension/diagnosis , Hypotension/etiology , Male , Middle Aged , Neutropenia/chemically induced , Neutropenia/diagnosis , Prognosis , Respiratory Insufficiency/diagnosis , Respiratory Insufficiency/etiology , Severity of Illness Index , Time Factors
13.
Rev. argent. cardiol ; 74(3): 224-228, mayo-jun. 2006. tab, graf
Article in Spanish | LILACS | ID: lil-440344

ABSTRACT

El poscondicionamiento isquémico (Poscon) reduce el tamaño del infarto en animales normales. Sin embargo, el efecto de este mecanismo de protección en animales hipercolesterolémicos se desconoce. El objetivo del presente estudio fue determinar si el Poscon reduce el tamaño del infarto en animales hipercolesterolémicos. Un segundo objetivo fue evaluar si los receptores A1 participan en el mecanismo de protección del Poscon. Se perfundieron corazones aislados e isovolúmicos de conejos normales e hipercolesterolémicos según técnica de Langendorff y se sometieron a 30 min de isquemia global y 30 min de reperfusión (grupo 1 [G1]). En el grupo 2 (G2) se provocaron dos episodios de reperfusión/isquemia (30 seg cada uno, Poscon) luego de 30 min de isquemia. En el grupo 3 (G3) se repitió el protocolo del G2, pero se administró un bloqueante A1 (DPCPX, 200 nM). En los grupos 4, 5 y 6 (G4, G5 y G6), constituidos por animales que fueron alimentados con una dieta rica en colesterol (1 por ciento) durante 4 semanas, se repitieron todos estos protocolos experimentales. Se midieron la presión desarrollada del VI (PDVI), la presión diastólica final del VI (PDFVI) y el tamaño del infarto utilizando TTC. El tamaño del infarto en el G1 y el G4 fue del 15,7 por ciento ± 1,5 por ciento y del 24,4 por ciento ± 3,1 por ciento, respectivamente. El Poscon redujo el área de infarto hasta alcanzar el 5,5 por ciento ± 0,9 por ciento en animales normales y el 5,6 por ciento ± 1,6 por ciento en los hipercolesterolémicos (p < 0,05 versus G1 y G4). La administración de DPCPX abolió el efecto protector del Poscon en ambos grupos de animales (G3: 15,1 ± 1,7 y G6: 21,2 ± 1,9). El Poscon reduce el tamaño del infarto en animales normales e hipercolesterolémicos a través de la activación de los receptores A.


Subject(s)
Male , Animals , Rabbits , Myocardial Infarction/physiopathology , Receptor, Adenosine A1 , Hypercholesterolemia , Myocardial Ischemia/physiopathology , Myocardial Reperfusion
14.
Rev. argent. cardiol ; 74(3): 224-228, mayo-jun. 2006. tab, graf
Article in Spanish | BINACIS | ID: bin-122018

ABSTRACT

El poscondicionamiento isquémico (Poscon) reduce el tamaño del infarto en animales normales. Sin embargo, el efecto de este mecanismo de protección en animales hipercolesterolémicos se desconoce. El objetivo del presente estudio fue determinar si el Poscon reduce el tamaño del infarto en animales hipercolesterolémicos. Un segundo objetivo fue evaluar si los receptores A1 participan en el mecanismo de protección del Poscon. Se perfundieron corazones aislados e isovolúmicos de conejos normales e hipercolesterolémicos según técnica de Langendorff y se sometieron a 30 min de isquemia global y 30 min de reperfusión (grupo 1 [G1]). En el grupo 2 (G2) se provocaron dos episodios de reperfusión/isquemia (30 seg cada uno, Poscon) luego de 30 min de isquemia. En el grupo 3 (G3) se repitió el protocolo del G2, pero se administró un bloqueante A1 (DPCPX, 200 nM). En los grupos 4, 5 y 6 (G4, G5 y G6), constituidos por animales que fueron alimentados con una dieta rica en colesterol (1 por ciento) durante 4 semanas, se repitieron todos estos protocolos experimentales. Se midieron la presión desarrollada del VI (PDVI), la presión diastólica final del VI (PDFVI) y el tamaño del infarto utilizando TTC. El tamaño del infarto en el G1 y el G4 fue del 15,7 por ciento ± 1,5 por ciento y del 24,4 por ciento ± 3,1 por ciento, respectivamente. El Poscon redujo el área de infarto hasta alcanzar el 5,5 por ciento ± 0,9 por ciento en animales normales y el 5,6 por ciento ± 1,6 por ciento en los hipercolesterolémicos (p < 0,05 versus G1 y G4). La administración de DPCPX abolió el efecto protector del Poscon en ambos grupos de animales (G3: 15,1 ± 1,7 y G6: 21,2 ± 1,9). El Poscon reduce el tamaño del infarto en animales normales e hipercolesterolémicos a través de la activación de los receptores A. (AU)


Subject(s)
Male , Animals , Rabbits , Myocardial Infarction/physiopathology , Receptor, Adenosine A1 , Myocardial Ischemia/physiopathology , Hypercholesterolemia , Myocardial Reperfusion
15.
Rev. argent. cardiol ; 74(3): 224-228, mayo-jun. 2006. tab, graf
Article in Spanish | BINACIS | ID: bin-119608

ABSTRACT

El poscondicionamiento isquémico (Poscon) reduce el tamaño del infarto en animales normales. Sin embargo, el efecto de este mecanismo de protección en animales hipercolesterolémicos se desconoce. El objetivo del presente estudio fue determinar si el Poscon reduce el tamaño del infarto en animales hipercolesterolémicos. Un segundo objetivo fue evaluar si los receptores A1 participan en el mecanismo de protección del Poscon. Se perfundieron corazones aislados e isovolúmicos de conejos normales e hipercolesterolémicos según técnica de Langendorff y se sometieron a 30 min de isquemia global y 30 min de reperfusión (grupo 1 [G1]). En el grupo 2 (G2) se provocaron dos episodios de reperfusión/isquemia (30 seg cada uno, Poscon) luego de 30 min de isquemia. En el grupo 3 (G3) se repitió el protocolo del G2, pero se administró un bloqueante A1 (DPCPX, 200 nM). En los grupos 4, 5 y 6 (G4, G5 y G6), constituidos por animales que fueron alimentados con una dieta rica en colesterol (1 por ciento) durante 4 semanas, se repitieron todos estos protocolos experimentales. Se midieron la presión desarrollada del VI (PDVI), la presión diastólica final del VI (PDFVI) y el tamaño del infarto utilizando TTC. El tamaño del infarto en el G1 y el G4 fue del 15,7 por ciento ± 1,5 por ciento y del 24,4 por ciento ± 3,1 por ciento, respectivamente. El Poscon redujo el área de infarto hasta alcanzar el 5,5 por ciento ± 0,9 por ciento en animales normales y el 5,6 por ciento ± 1,6 por ciento en los hipercolesterolémicos (p < 0,05 versus G1 y G4). La administración de DPCPX abolió el efecto protector del Poscon en ambos grupos de animales (G3: 15,1 ± 1,7 y G6: 21,2 ± 1,9). El Poscon reduce el tamaño del infarto en animales normales e hipercolesterolémicos a través de la activación de los receptores A. (AU)


Subject(s)
Male , Animals , Rabbits , Myocardial Infarction/physiopathology , Receptor, Adenosine A1 , Myocardial Ischemia/physiopathology , Hypercholesterolemia , Myocardial Reperfusion
16.
Medicina (B.Aires) ; 66(5): 385-391, 2006. tab
Article in Spanish | LILACS | ID: lil-451705

ABSTRACT

Los pacientes con neutropenia y fiebre constituyen una población heterogénea con riesgo variable para el desarrollo de complicaciones serias y mortalidad. El objetivo de este trabajo es identificarfactores que, presentes al ingreso, estuvieran asociados a mayor riesgo de complicaciones graves en pacientesque se internan por neutropenia y fiebre. Se trata de un estudio de seguimiento de una cohorte de 238 episodios de neutropenia y fiebre (neutrófilos <1000/mm3 y T>38.3 °C) en 167 pacientes internados en sala general en nuestra institución desde 1997 a 2004. Ochenta y dos por ciento de los pacientes tenían enfermedad hematológica, 14% tumores sólidos y 4% no asociados a quimioterapia. Se registraron 67 eventos adversos (46% de insuficiencia renal, 27% de hipotensión refractaria, 15% de insuficiencia respiratoria y 12% con sangrado mayor). Se hallaron diferencias significativas en presencia de comorbilidades previas, temperatura mayor a 39 °C, frecuencia cardíaca mayor a 120 latidos por minuto, frecuencia respiratoria mayor a 24 por minuto, tensión arterial sistólica menor a 90 mm Hg, presencia de 3 o más valores de laboratorio alterados al ingreso, presencia de foco clínico y hemocultivos positivos. En el análisis multivariado de regresión logística mantuvieron asociación independiente con mayor riesgo de eventos graves: hipotensión arterial sistólica (OR=7, p<0.01), comorbilidades (OR=8.5, p=0.02), taquipnea (OR=2.8, p=0.01), y presencia de foco clínico (OR=2.1, p=0.03)


Patients with neutropenia and fever conform a heterogeneouspopulation with a variable risk of serious complications and mortality. The goal of this study was to identifyprognostic risk factors present at the beginning of the episode, for adverse events and serious complications inpatients admitted in a general ward with fever and neutropenia. A cohort of 238 episodes with neutropenia andfever (neutrophils <1000/mm3 and T>38.3 °C) in 167 patients admitted to our general hospital between 1997and 2004 was followed. Eighty two percent of the patients had hematologic malignancies, 14% solid tumors and4% were not associated with chemotherapy. Sixty seven adverse events were registered (46% renal insufficiency, 27% refractory hypotension, 15% respiratory insufficiency and 12% major bleeding). Significant differences werefound in presence of current co-morbidities, body temperature >39 °C, heart rate >120 beats per minute, respiratory rate >24 per minute, systolic blood pressure <90 mm Hg, presence of 3 or more altered laboratory values, presenceof a clinical site of infection and positive blood cultures. The logistic regression multivariate analysis showedthat the following characteristics were independently associated with adverse events: systolic blood pressure<90 mm Hg (OR=7, p<0.01), current co-morbidities (OR=8.5, p=0.02), respiratory rate >24 per minute (OR=2.8, p=0.01), and the presence of a clinical site of infection (OR=2.1, p=0.03). The presence of systolic hypotension, high respiratory rate, current co-morbidities and a clinical site of infection at the time of admission were identified predictors of subsequent serious complications in patients admitted with fever and neutropenia in a general ward


Subject(s)
Humans , Male , Female , Adolescent , Adult , Middle Aged , Aged, 80 and over , Fever/complications , Inpatients , Neutropenia/complications , Patient Admission , Acute Kidney Injury , Antineoplastic Agents/adverse effects , Comorbidity , Cancer Care Facilities/statistics & numerical data , Diagnostic Tests, Routine , Epidemiologic Methods , Fever/chemically induced , Fever/diagnosis , Hospitals, University/statistics & numerical data , Hypotension/diagnosis , Hypotension/etiology , Neutropenia/chemically induced , Neutropenia/diagnosis , Prognosis , Radiography, Thoracic , Respiratory Insufficiency/diagnosis , Respiratory Insufficiency/etiology , Severity of Illness Index , Time Factors
17.
Medicina (B.Aires) ; 66(5): 385-391, 2006. tab
Article in Spanish | BINACIS | ID: bin-123201

ABSTRACT

Los pacientes con neutropenia y fiebre constituyen una población heterogénea con riesgo variable para el desarrollo de complicaciones serias y mortalidad. El objetivo de este trabajo es identificarfactores que, presentes al ingreso, estuvieran asociados a mayor riesgo de complicaciones graves en pacientesque se internan por neutropenia y fiebre. Se trata de un estudio de seguimiento de una cohorte de 238 episodios de neutropenia y fiebre (neutrófilos <1000/mm3 y T>38.3 ºC) en 167 pacientes internados en sala general en nuestra institución desde 1997 a 2004. Ochenta y dos por ciento de los pacientes tenían enfermedad hematológica, 14% tumores sólidos y 4% no asociados a quimioterapia. Se registraron 67 eventos adversos (46% de insuficiencia renal, 27% de hipotensión refractaria, 15% de insuficiencia respiratoria y 12% con sangrado mayor). Se hallaron diferencias significativas en presencia de comorbilidades previas, temperatura mayor a 39 ºC, frecuencia cardíaca mayor a 120 latidos por minuto, frecuencia respiratoria mayor a 24 por minuto, tensión arterial sistólica menor a 90 mm Hg, presencia de 3 o más valores de laboratorio alterados al ingreso, presencia de foco clínico y hemocultivos positivos. En el análisis multivariado de regresión logística mantuvieron asociación independiente con mayor riesgo de eventos graves: hipotensión arterial sistólica (OR=7, p<0.01), comorbilidades (OR=8.5, p=0.02), taquipnea (OR=2.8, p=0.01), y presencia de foco clínico (OR=2.1, p=0.03) (AU)


Patients with neutropenia and fever conform a heterogeneouspopulation with a variable risk of serious complications and mortality. The goal of this study was to identifyprognostic risk factors present at the beginning of the episode, for adverse events and serious complications inpatients admitted in a general ward with fever and neutropenia. A cohort of 238 episodes with neutropenia andfever (neutrophils <1000/mm3 and T>38.3 ºC) in 167 patients admitted to our general hospital between 1997and 2004 was followed. Eighty two percent of the patients had hematologic malignancies, 14% solid tumors and4% were not associated with chemotherapy. Sixty seven adverse events were registered (46% renal insufficiency, 27% refractory hypotension, 15% respiratory insufficiency and 12% major bleeding). Significant differences werefound in presence of current co-morbidities, body temperature >39 ºC, heart rate >120 beats per minute, respiratory rate >24 per minute, systolic blood pressure <90 mm Hg, presence of 3 or more altered laboratory values, presenceof a clinical site of infection and positive blood cultures. The logistic regression multivariate analysis showedthat the following characteristics were independently associated with adverse events: systolic blood pressure<90 mm Hg (OR=7, p<0.01), current co-morbidities (OR=8.5, p=0.02), respiratory rate >24 per minute (OR=2.8, p=0.01), and the presence of a clinical site of infection (OR=2.1, p=0.03). The presence of systolic hypotension, high respiratory rate, current co-morbidities and a clinical site of infection at the time of admission were identified predictors of subsequent serious complications in patients admitted with fever and neutropenia in a general ward (AU)


Subject(s)
Humans , Male , Female , Adolescent , Adult , Middle Aged , Aged , Aged, 80 and over , Inpatients , Patient Admission , Fever/complications , Neutropenia/complications , Diagnostic Tests, Routine , Antineoplastic Agents/adverse effects , Cancer Care Facilities/statistics & numerical data , Comorbidity , Epidemiologic Methods , Fever/chemically induced , Fever/diagnosis , Hypotension/diagnosis , Hypotension/etiology , Neutropenia/chemically induced , Neutropenia/diagnosis , Prognosis , Radiography, Thoracic , Acute Kidney Injury/diagnosis , Acute Kidney Injury/etiology , Respiratory Insufficiency/diagnosis , Respiratory Insufficiency/etiology , Severity of Illness Index , Time Factors , Hospitals, University/statistics & numerical data
18.
Medicina (B.Aires) ; 66(5): 385-391, 2006. tab
Article in Spanish | BINACIS | ID: bin-119130

ABSTRACT

Los pacientes con neutropenia y fiebre constituyen una población heterogénea con riesgo variable para el desarrollo de complicaciones serias y mortalidad. El objetivo de este trabajo es identificarfactores que, presentes al ingreso, estuvieran asociados a mayor riesgo de complicaciones graves en pacientesque se internan por neutropenia y fiebre. Se trata de un estudio de seguimiento de una cohorte de 238 episodios de neutropenia y fiebre (neutrófilos <1000/mm3 y T>38.3 ºC) en 167 pacientes internados en sala general en nuestra institución desde 1997 a 2004. Ochenta y dos por ciento de los pacientes tenían enfermedad hematológica, 14% tumores sólidos y 4% no asociados a quimioterapia. Se registraron 67 eventos adversos (46% de insuficiencia renal, 27% de hipotensión refractaria, 15% de insuficiencia respiratoria y 12% con sangrado mayor). Se hallaron diferencias significativas en presencia de comorbilidades previas, temperatura mayor a 39 ºC, frecuencia cardíaca mayor a 120 latidos por minuto, frecuencia respiratoria mayor a 24 por minuto, tensión arterial sistólica menor a 90 mm Hg, presencia de 3 o más valores de laboratorio alterados al ingreso, presencia de foco clínico y hemocultivos positivos. En el análisis multivariado de regresión logística mantuvieron asociación independiente con mayor riesgo de eventos graves: hipotensión arterial sistólica (OR=7, p<0.01), comorbilidades (OR=8.5, p=0.02), taquipnea (OR=2.8, p=0.01), y presencia de foco clínico (OR=2.1, p=0.03) (AU)


Patients with neutropenia and fever conform a heterogeneouspopulation with a variable risk of serious complications and mortality. The goal of this study was to identifyprognostic risk factors present at the beginning of the episode, for adverse events and serious complications inpatients admitted in a general ward with fever and neutropenia. A cohort of 238 episodes with neutropenia andfever (neutrophils <1000/mm3 and T>38.3 ºC) in 167 patients admitted to our general hospital between 1997and 2004 was followed. Eighty two percent of the patients had hematologic malignancies, 14% solid tumors and4% were not associated with chemotherapy. Sixty seven adverse events were registered (46% renal insufficiency, 27% refractory hypotension, 15% respiratory insufficiency and 12% major bleeding). Significant differences werefound in presence of current co-morbidities, body temperature >39 ºC, heart rate >120 beats per minute, respiratory rate >24 per minute, systolic blood pressure <90 mm Hg, presence of 3 or more altered laboratory values, presenceof a clinical site of infection and positive blood cultures. The logistic regression multivariate analysis showedthat the following characteristics were independently associated with adverse events: systolic blood pressure<90 mm Hg (OR=7, p<0.01), current co-morbidities (OR=8.5, p=0.02), respiratory rate >24 per minute (OR=2.8, p=0.01), and the presence of a clinical site of infection (OR=2.1, p=0.03). The presence of systolic hypotension, high respiratory rate, current co-morbidities and a clinical site of infection at the time of admission were identified predictors of subsequent serious complications in patients admitted with fever and neutropenia in a general ward (AU)


Subject(s)
Humans , Male , Female , Adolescent , Adult , Middle Aged , Aged , Aged, 80 and over , Inpatients , Patient Admission , Fever/complications , Neutropenia/complications , Diagnostic Tests, Routine , Antineoplastic Agents/adverse effects , Cancer Care Facilities/statistics & numerical data , Comorbidity , Epidemiologic Methods , Fever/chemically induced , Fever/diagnosis , Hypotension/diagnosis , Hypotension/etiology , Neutropenia/chemically induced , Neutropenia/diagnosis , Prognosis , Radiography, Thoracic , Acute Kidney Injury/diagnosis , Acute Kidney Injury/etiology , Respiratory Insufficiency/diagnosis , Respiratory Insufficiency/etiology , Severity of Illness Index , Time Factors , Hospitals, University/statistics & numerical data
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