Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 6 de 6
Filtrar
1.
BMC Geriatr ; 24(1): 534, 2024 Jun 20.
Artigo em Inglês | MEDLINE | ID: mdl-38902633

RESUMO

BACKGROUND: Upper gastrointestinal bleeding (UGIB) in older patients is associated with substantial in-hospital morbidity and mortality. This study aimed to develop and validate a simplified risk score for predicting 30-day in-hospital mortality in this population. METHODS: A retrospective analysis was conducted on data from 1899 UGIB patients aged ≥ 65 years admitted to a single medical center between January 2010 and December 2019. An additional cohort of 330 patients admitted from January 2020 to October 2021 was used for external validation. Variable selection was performed using five distinct methods, and models were generated using generalized linear models, random forest, support vector machine, and k-nearest neighbors approaches. The developed score, "ABCAP," incorporated Albumin < 30 g/L, Blood Urea Nitrogen (BUN) > 7.5 mmol/L, Cancer presence, Altered mental status, and Pulse rate > 100/min, each assigned a score of 1. Internal and external validation procedures compared the ABCAP score with the AIMS65 score. RESULTS: In internal validation, the ABCAP score demonstrated robust predictive capability with an area under the curve (AUC) of 0.878 (95% CI: 0.824-0.932), which was significantly better than the AIMS65 score (AUC: 0.827, 95% CI: 0.751-0.904), as revealed by the DeLong test (p = 0.048). External validation of the ABCAP score resulted in an AUC of 0.799 (95% CI: 0.709-0.889), while the AIMS65 score yielded an AUC of 0.743 (95% CI: 0.647-0.838), with no significant difference between the two scores based on the DeLong test (p = 0.16). However, the ABCAP score at the 3-5 score level demonstrated superior performance in identifying high-risk patients compared to the AIMS65 score. This score exhibited consistent predictive accuracy across variceal and non-variceal UGIB subgroups. CONCLUSIONS: The ABCAP score incorporates easily obtained clinical variables and demonstrates promising predictive ability for 30-day in-hospital mortality in older UGIB patients. It allows effective mortality risk stratification and showed slightly better performance than the AIMS65 score. Further cohort validation is required to confirm generalizability.


Assuntos
Hemorragia Gastrointestinal , Mortalidade Hospitalar , Humanos , Idoso , Masculino , Feminino , Estudos Retrospectivos , Mortalidade Hospitalar/tendências , Idoso de 80 Anos ou mais , Medição de Risco/métodos , Hemorragia Gastrointestinal/mortalidade , Avaliação Geriátrica/métodos
2.
J Int Med Res ; 48(7): 300060520936082, 2020 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-32703038

RESUMO

OBJECTIVE: To determine the multiple functions of policosanol in elderly dyslipidemia patients.Methodology: There were 294 elderly dyslipidemia patients enrolled into this clinical study. They were randomly divided into four groups, as follows: 20 mg policosanol (group A, n = 64); 10 mg policosanol (group B, n = 72); 20 mg atorvastatin (group C, n = 91); and 10 mg policosanol + 20 mg atorvastatin (group D, n = 62). Plasma platelet count, platelet aggregation rate, circulating endothelial cell (CEC) count, high sensitivity C-reactive protein (hs-CRP), and carotid intima-media thickness (IMT) were measured before the study (week 0) and at weeks 12, 24, and 52. RESULTS: In group A, the platelet aggregation rate caused by adenosine diphosphate (ADP) after treatment was significantly decreased compared with before treatment (48.79% ± 20.29% vs. 40.37% ± 23.56%), but the arachidonic acid (AA)-induced platelet aggregation rates were similar. The platelet aggregation rates induced by AA and ADP in groups B, C, and D did not change significantly. CEC counts and hs-CRP and homocysteine levels in all groups after treatment were significantly lower compared with before treatment, but carotid IMTs were similar. CONCLUSION: Policosanol regulates blood lipid levels and improves endothelial cell function, and it could delay the progress of atherosclerosis.Trial registration number: ChiCTR-RRC-17013396 (retrospectively registered).


Assuntos
Espessura Intima-Media Carotídea , Dislipidemias , Idoso , Dislipidemias/tratamento farmacológico , Álcoois Graxos , Humanos , Agregação Plaquetária
3.
J Res Med Sci ; 23: 82, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30294350

RESUMO

BACKGROUND: The present study aimed to investigate the effects of serum beta-2 microglobulin (B2M) on the risks of major cardiovascular events (MACEs) and all-cause death in Chinese elderly isolated systolic hypertension (ISH) patients without severe renal insufficiency (estimated glomerular filtration rate [eGFR] <30 ml/min/1.73 m2). MATERIALS AND METHODS: Serum B2M concentration, creatinine-eGFR, and blood pressure variability were evaluated in 460 elderly patients (mean age, 82.6 years; 28 women) with ISH in this observational study. The Cox proportional hazard model was adopted to calculate adjusted hazard ratios (HRs) of risk factors for cardiovascular events and all-cause deaths. RESULTS: During a median follow-up period of 37.6 months, 63 patients (13.7%) died, and 65 patients (14.1%) had MACEs. Multivariable analysis showed that the higher serum B2M concentration (B2M ≥0.28 mg/dl) was an independent predictor of increased risk of MACEs (nonfatal acute myocardial infarction, acute heart failure, ischemic stroke, and cardiovascular deaths) and all-cause death (HR: 2.62, 95% confidence interval [CI]: 1.46-4.69, P = 0.001 and HR: 3.40, 95% CI: 1.78-6.48, P < 0.001, respectively) adjusting for other multiple confounders including creatinine-eGFR and cystatin C. In addition, blood pressure variability derived from ambulatory blood pressure measurement was not associated with incidence of MACEs and all-cause mortality (P > 0.05). CONCLUSION: Our data suggest that serum B2M concentration may be individually associated with MACEs and all-cause death in elderly ISH patients without severe renal insufficiency even after adjusted for creatinine-eGFR and cystatin C.

4.
J Int Med Res ; 46(8): 3078-3085, 2018 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-29756493

RESUMO

Objective This study was performed to evaluate the association between urinary sodium excretion and coronary heart disease (CHD) in hospitalized elderly patients in China. Methods The 24-h urinary excretion specimens of 541 patients were collected, and the serum creatinine concentration and urinary sodium/potassium ratio were measured. Associations were explored by multivariate logistic regression analysis. Results The mean 24-h urinary sodium excretion was 200.4 mmol, corresponding to 11.7 g of salt intake. Both of these values were higher in men than in women. The salt intake of 80- to 89-year-old patients was significantly lower than that of 70- to 79-year-old patients. The 24-h urinary sodium excretion and spot urine Na/K ratios were significantly higher in overweight/obese and hypertensive patients. The 24-h urinary sodium excretion of men who smoked was significantly higher than that of women. The spot urine Na/K ratio was significantly higher in patients with cerebral thrombosis. The urinary Na/K ratio, smoking status, and hypertension were independent risk factors for CHD. Conclusions This cross-sectional survey suggests that the Na/K ratio may better represent salt loading than Na excretion alone in studying the association between sodium intake and CHD. There was no association between sodium and CHD prevalence.


Assuntos
Doença das Coronárias/metabolismo , Sódio na Dieta/efeitos adversos , Sódio na Dieta/urina , Sódio/urina , Idoso , Idoso de 80 Anos ou mais , China/epidemiologia , Doença das Coronárias/epidemiologia , Doença das Coronárias/etiologia , Estudos Transversais , Feminino , Hospitalização , Humanos , Modelos Logísticos , Masculino , Potássio/urina , Prevalência , Sódio/metabolismo
5.
Zhongguo Ying Yong Sheng Li Xue Za Zhi ; 29(4): 368-70, 375, 2013 Jul.
Artigo em Chinês | MEDLINE | ID: mdl-24175566

RESUMO

OBJECTIVE: To detect the relationship between changes of sex hormone levels and risk factors for atherosclerosis in old patients with castrated prostatic cancer. METHODS: Two hundred and forty-seven patients, over 65 years old, were divided into three groups: 64 non-prostatic cancer patients (group I), 61 non-castrated prostatic cancer patients (group II) and 122 castrated prostatic cancer patients (group III). Group I and group II served as controls. Testosterone (T), estradiol (E2), luteal hormone (LH), follicle stimulating hormone (FSH), prolactin (PRL), progesterone (P), C-reactive protein (CRP), serum homocysteine (Hcy), glucose (GLU), uric acid (UA), total cholesterol (TC), triglyceride (TG), low density lipoprotein-cholesterol (LDL-C), and high density lipoprotein-cholesterol (HDL), were measured and compared between any two groups. RESULTS: In patients with castrated prostatic cancer, T, E2, and P levels decreased significantly, LH and FSH increased significantly, change of PRL was not significant, E2/T was elevated significantly; levels of CRP, Hcy, GLU, UA, TC, TG and LDL-C increased significantly compared with those in control groups. CONCLUSION: Sex hormone levels were imbalanced significantly after castration in old prostatic cancer patients, and the risk factors for atherosclerosis also increased accordingly. There might be relationship between decreased sex hormone levels and risk factors for atherosclerosis in old male patients.


Assuntos
Aterosclerose/patologia , Hormônios Esteroides Gonadais/metabolismo , Neoplasias da Próstata/metabolismo , Neoplasias da Próstata/patologia , Idoso , Idoso de 80 Anos ou mais , Estudos de Casos e Controles , Humanos , Masculino , Orquiectomia , Fatores de Risco
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA