1,721,001 research outputs found
Ipotiroidismo subclinico nel paziente anziano: sindrome clinica o condizione parafisiologica?
No full textUn lieve deficit della funzione tiroidea o ipotiroidismo
subclinico (sHT), definito a livello biochimico
come una concentrazione di ormone stimolante la tiroide
(TSH) oltre il limite superiore del range di riferimento associato
a valori normali di T4 (FT4) e T3 (FT3) liberi,
è una condizione clinica frequente nella popolazione generale,
specie nelle donne, la cui prevalenza aumenta con
l’aumentare dell’età. Va comunque sottolineato come, con
l’invecchiamento, si assista a un progressivo aumento dei
valori medi di TSH che, secondo alcuni autori, renderebbe
necessario definire range specifici di normalità. In generale,
l’attività tiroidea potrebbe avere un legame con l’invecchiamento
per l’intimo collegamento tra metabolismo basale
e i processi catabolici (accelerati nell’invecchiamento).
L’ipotiroidismo subclinico è stato associato a iperlipidemia,
alterazioni del metabolismo glucidico, ipertensione arteriosa
sistemica e malattia cardiovascolare, così come ad alcune
condizioni neuro-psichiatriche, incluso il deterioramento
cognitivo. La correlazione tra eventi e/o mortalità cardiovascolare
e sHT non è ancora completamente chiarita e dati
apparentemente conflittuali sono stati riportati in letteratura,
soprattutto per quanto riguarda i grandi anziani (>80 anni).
I pochi e contrastanti risultati della letteratura non consentono
di delineare un chiaro ruolo dell’sHT nel processo di deterioramento delle funzioni cognitive. Di conseguenza, il
quesito clinico fondamentale nei pazienti con sHT è quello
di stabilire quando e se intraprendere la terapia ormonale
sostitutiva, anche in relazione al rischio potenziale di effetti
collaterali, particolarmente nei grandi anziani
Endocrine dysfunction and cognitive impairment
No full textDementia is a highly prevalent chronic disease among the older population, affecting more than 50 million people worldwide and representing a huge healthcare, social and economic burden. dementia, and in particular alzheimer’s disease, prevalence is expected to raise within the next few years. Unfortunately, no disease-modifying therapies are available so far, despite a plethora of clinical trials targeting the hallmarks of alzheimer’s disease. given these premises, it appears crucial to address not only the neuropathological correlates of the disease, but also the modifiable risk factors. Among them, evidence suggest a role of the endocrine system not only in the brain development, but also in the maintenance of its health, having neurotrophic, antioxidant and metabolic functions crucial for the cognitive abilities. This review focuses on the evidence evaluating the impact of the endocrine systems, in particular thyroid function, insulin resistance, parathyroid hormone, vitamin d and sexual hormones on cognitive status. results from epidemiological, preclinical and some clinical studies demonstrated the link between thyroid, parathyroid hormone and vitamin d and cognitive status, between diabetes, and insulin resistance in particular, and dementia, between sexual and adrenal hormones, particularly estrogen variation at menopause, and cognitive decline. The growing interest on the modifiable risks factors of cognitive decline increased the knowledge about the complex interplay of endocrine systems and cognition, highlighting the need and the usefulness of a multidisciplinary approach to the prevention of a complex and devastating disease
30-day potentially preventable hospital readmissions in older patients: Clinical phenotype and health care related risk factors
Full text linkPurpose: Early readmission rate has been regarded as an indicator of in-hospital and postdischarge quality of care. Evaluating the contributing factors is crucial to optimize the healthcare and target the intervention. In this study we evaluated the potential for preventing 30-day hospital readmission in a cohort of older patients and identified possible risk factors for readmission. Patients and methods: Diagnosis-Related Group (DRG) codes of patients consecutively hospitalized for acute disease in the Geriatrics Unit of the University Hospital of Pisa within a 1-year window were recorded. All the patients had received a comprehensive geriatric assessment. Crossing and elaboration of the DRG codes was performed by the Potentially Preventable Readmission Grouping software (3MTM Corporation). DRG codes were classified as stand-alone admissions (SA), index admissions (IA) and potentially preventable readmissions (PPR) within a time window of 30 days after discharge. Results: In total, 1263 SA and 171 IA were identified, with an overall PPR rate of 11.9%. Hospitalizations were significantly longer in IA and PPR than SA (p<0.05). The more frequent readmission causes were acute heart failure, pulmonary edema, sepsis, pneumonia and stroke. In acute heart failure a nonlinear U-shaped readmission trend (with nadir at 5 days of hospitalization) was observed while, in all the other DRG codes, the PPR rate increased with increasing length of hospitalization. Comprehensive geriatric assessment showed a significantly lower degree of disability and comorbidity in SA than IA patients. At stepwise regression analysis, a high degree of disability and comorbidity as well as the diagnosis of sepsis emerged as independent risk factors for PPR. Conclusion: Addressing PPR is crucial, especially in older patients. The adequacy of treatment during hospitalization (especially in cases of sepsis) as well as the setting of a comprehensive discharge plan, accounting for comorbidity and disability of the patients, are essential to reduce PPR
Pneumonia Lung Ultrasound Score (PLUS): A New Tool for Detecting Pneumonia in the Oldest Patients
No full textOBJECTIVES: To compare the diagnostic accuracy of lung ultrasound (LUS) and standard chest X-ray (CXR) in older patients admitted to an acute-care geriatric ward for suspected acute pneumonia, and to develop an easy-to-use diagnostic tool, now called Pneumonia Lung Ultrasound Score (PLUS), for early risk stratification. DESIGN: Prospective, single-center, cohort study. SETTING: Acute-care geriatric ward of tertiary care center. PARTICIPANTS: Individuals, aged 65 years and older, with suspected acute pneumonia. MEASUREMENTS: Participants were stratified according to the Multidimensional Prognostic Index. All the patients underwent CXR and LUS, whereas chest computed tomography was performed in case of mismatch between LUS and CXR. Using logistic multivariate regression, we assessed the influence of age, sex, multimorbidity, cognitive impairment, and clinical biomarkers in the misdiagnosis of acute pneumonia. Finally, an easy-to-perform diagnostic tool based on the combination of biomarkers (brain natriuretic peptide, high-sensitivity C-reactive protein, and partial pressure arterial oxygen/fraction of inspired oxygen ratio) and LUS was realized. A receiver operating characteristic curve was used to verify the predictive accuracy of PLUS, CXR, and LUS in pneumonia diagnosis. RESULTS: A total of 132 subjects (69% women; mean age = 85.3 ± 6.9 years) were enrolled in the study. Acute pneumonia was diagnosed in 94 of 132 cases. LUS showed higher diagnostic accuracy compared with CXR (0.91 (95% confidence interval (CI) = 0.85–0.93) vs 0.67 (95% CI = 0.58–0.75)) in detecting pneumonic consolidations. A higher degree of cognitive impairment was associated with both LUS and CXR pneumonia misdiagnosis (odds ratio = 1.30 (95% CI = 1.04–1.65)). PLUS showed higher predictive accuracy in the diagnosis of acute pneumonia compared with LUS (AUC = 0.92 (95% CI = 0.87–0.98) vs 0.86 (95% CI = 0.80–0.96); P =.029). CONCLUSIONS: This study confirms the higher diagnostic accuracy of LUS compared with CXR for acute pneumonia in older adults. Nonetheless, the accuracy of PLUS, an easy-to-use, biomarker-derived diagnostic tool, was superior to LUS regardless of patientsʼ degree of frailty
Dabigatran-induced acute liver injury in older patients: Case report and literature review
No full textObjective. Dabigatran, a direct inhibitor of thrombin, represents an effective alternative to warfarin. Despite the good tolerance and predictable pharmacokinetic profile, dabigatran may be associated to adverse reactions, including gastrointestinal disorders. Here we report on a case of hepatotoxicity along with an extensive revision of the available literature on dabigatran induced liver injury Methods & results. An 84 years old man attended the Emergency Department after experiencing fatigue for a few days. He suffered from atrial fibrillation and had been initiated on dabigatran (110 mg bid) in the last four weeks. Clinical examination revealed tachycardia, scleral icterus in the absence of signs of chronic hepatic disease. Blood chemistry showed altered liver function tests: AST 809 IU/L, ALT 1629 IU/L, total bilirubin 2.42 mg/dL, gGT 381 IU/L, ALP 388 IU/L, LDH 552 IU/L. Screening laboratory investigations for infectious, autoimmune or metabolic hepatotoxic pathology were unremarkable. The abdominal ultrasound examination excluded vascular causes, revealing non-homogeneous echo-structure consistent with mild hepatic steatosis. At admission to our Geriatric ward dabigatran was discontinued and fondaparinux was introduced. Resolution of the hepatitis and normalization of blood chemistry was observed within two weeks. Few cases are described regarding hepatotoxicity likely caused by the recent onset of treatment with dabigatran. Conclusions. DOACs associated hepatotoxicity is rare but potentially harmful and should be kept in mind, especially in comorbid patients with unexplained liver injury. The mechanism of liver injury during dabigatran therapy is unknown and, not related to cytochrome P450 enzymes since the drug does not affect CYP450 activity
Spontaneous muscle hematoma in older patients with COVID-19: two case reports and literature review
Full text linkBackground: In late December 2019, a cluster of pneumonia cases due to a novel betacoronavirus, SARS-CoV-2 was reported in China. The so-called COVID 19 is responsible not only for respiratory symptoms, from mild up to pneumonia and even acute respiratory distress syndrome, but also for extrapulmonary involvement. Cases presentation: Here we present two cases of spontaneous muscle hematoma in patients with SARS-CoV-2 infection, both on therapeutic LMWH for atrial fibrillation: the first one was an 86-year-old Caucasian female with a history of hypertensive cardiomyopathy and the second one was an 81-year-old Caucasian male with a history of hypertension, diabetes and ischemic heart disease. Blood tests revealed a considerable drop of hemoglobin and alterations of coagulation system. In both cases, embolization of femoral artery was performed. A few other cases of bleeding manifestations are reported in literature, while a lot has been published about the hypercoagulability related to COVID-19. Conclusions: Our reports and literature review highlight the need of active surveillance for possible hemorrhagic complications in patients with SARS-CoV-2 infection
Type of anticoagulation therapy in oldest old, frail people with atrial fibrillation: Prescription modification over time. Authors' Reply
No full textLong-term effectiveness and safety of anticoagulation therapy in oldest old, frail people with atrial fibrillation
No full textBackground: Atrial Fibrillation (AF) represents a major cause of mortality and morbidity in older people; however, oldest-old frail patients are usually excluded from clinical trials. Aim of the study is to evaluate the impact of oral anticoagulation (OAC) therapy on long-term overall survival and clinically relevant bleedings in a large cohort of hospitalised frail, oldest-old patients with AF. Patients and methods: Prospective, observational, cohort study, evaluating patients consecutively hospitalized for acute illnesses in our Geriatrics Unit (January 2013-July 2017). Participants were divided in two groups, AF and sinus rhythm (SR). Besides recording demographic characteristics and clinical history, comprehensive geriatric assessment (CGA) was obtained. Results: AF patients [1808/5093 (35.5%), 58.5% women] were older, with higher burden of comorbidity than those with SR. At discharge, HAS-BLED [OR 0.77 (95%CI 0.67-0.90), cognitive impairment [OR 0.92 (95%CI 0.90-0.95)], malnutrition [OR 0.74 (95%CI 0.57-0.97)] and CHA2DS2VASc [OR 1.33 (95%CI 1.20-1.47)] emerged as significant independent predictors of anticoagulant prescription. AF patients showed significantly reduced overall survival (OS) than those with SR (11.4 vs 19.4 months, p<.001). However, anticoagulated AF patients (75.2%) had three-times longer OS than those not anticoagulated (15.0 vs 5.6 months, p<.001), comparable to SR patients after adjustment for potential confounders [HR 1.04 (95%CI 0.99–1.10)]. ED readmittance risk for clinically relevant bleeding did not differ between AF patients receiving or not anticoagulation [HR 1.04 (95%CI 0.76-1.14)] Conclusion: anticoagulation therapy was associated with significant increase of long-term OS without increased risk of clinically relevant bleeding. CGA resulted an useful tool in OAC therapy decision-making
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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