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2.
PLoS One ; 19(2): e0298967, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38416752

RESUMO

Anemia is a significant public health problem in many low- and middle-income countries (LMICs), with young children being especially vulnerable. Iron deficiency is a leading cause of anemia and prior studies have shown associations between low iron status/iron deficiency anemia and poor child development outcomes. In LMICs, 43% of children under the age of five years are at risk of not meeting their developmental potential. However, few studies have examined associations between anemia status and early childhood development (ECD) in large population-based surveys. We examined the associations between severe or moderate anemia and ECD domains (literacy-numeracy, physical, social-emotional, and learning) and an overall ECD index among children age 36-59 months. Nine Demographic and Health Surveys (DHS) from phase VII of The DHS Program (DHS-7) that included the ECD module and hemoglobin testing in children under age five years were used. Bivariate and multivariate logistic regressions were run for each of the five outcomes. Multivariate models controlled for early learning/interaction variables, child, maternal, and paternal characteristics, and socio-economic and household characteristics. Results showed almost no significant associations between anemia and ECD domains or the overall ECD index except for social-emotional development in Benin (AOR = 1.00 p < 0.05) and physical development in Maldives (AORs = 0.97 p < 0.05). Attendance at an early childhood education program was also significantly associated with the outcomes in many of the countries. Our findings reinforce the importance of the Nurturing Care Framework which describes a multi-sectoral approach to promote ECD in LMICs.


Assuntos
Anemia Ferropriva , Anemia , Masculino , Criança , Humanos , Pré-Escolar , Desenvolvimento Infantil , Estudos Transversais , Anemia/epidemiologia , Características da Família , Inquéritos e Questionários , Anemia Ferropriva/complicações , Anemia Ferropriva/epidemiologia , Inquéritos Epidemiológicos
3.
Curr Opin Cardiol ; 39(3): 178-187, 2024 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-38353280

RESUMO

PURPOSE OF REVIEW: Iron deficiency is common in patients with heart failure, affecting up to half of ambulatory patients and an even greater percentage of patients admitted for acute decompensation. Iron deficiency in this population is also associated with poor outcomes, including worse quality of life in addition to increased hospitalizations for heart failure and mortality. Evidence suggests that patients with iron deficiency in heart failure may benefit from repletion with IV iron. RECENT FINDINGS: In this review, we outline the etiology and pathophysiology of iron deficiency in heart failure as well as various iron formulations available. We discuss evidence for intravenous iron repletion with a particular focus on recent studies that have evaluated its effects on hospitalizations and mortality. Finally, we discuss areas of uncertainty and future study and provide practical guidance for iron repletion. SUMMARY: In summary, there is overwhelming evidence that intravenous iron repletion in patients with iron deficiency in heart failure is both beneficial and safe. However, further evidence is needed to better identify which patients would most benefit from iron repletion as well as the ideal repletion strategy.


Assuntos
Anemia Ferropriva , Insuficiência Cardíaca , Deficiências de Ferro , Humanos , Anemia Ferropriva/etiologia , Anemia Ferropriva/complicações , Qualidade de Vida , Ferro/uso terapêutico , Insuficiência Cardíaca/complicações , Insuficiência Cardíaca/tratamento farmacológico , Insuficiência Cardíaca/epidemiologia
4.
Paediatr Int Child Health ; 44(1): 34-38, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38321653

RESUMO

Iron deficiency anaemia (IDA) is common in children. Treatment usually consists of oral iron therapy and, if severe, inpatient hospitalisation with blood transfusion. Providers may also undertake an echocardiogram, depending on availability and the severity of anaemia. A male toddler with nutritional IDA, haemoglobin of 1.7 g/dL (the lowest level in the literature) and hypertension had left ventricular hypertrophy (LVH) on the initial echocardiogram. He was managed acutely with judicious blood transfusion, followed by oral iron supplementation and anti-hypertensive medication at discharge. Repeat echocardiogram a month later demonstrated slight improvement of the LVH but the hypertension persisted at follow-up 6 months later. There was complete resolution of the findings a year later. In chronic nutritional IDA, there can be structural cardiac changes which can affect the acute management and requires close follow-up. It is important to use echocardiography in such severe cases.Abbreviations: CHF: congestive heart failure; CM: cardiomyopathy; DCM: dilated cardiomyopathy; ICU: intensive care unit; IDA: iron deficiency anaemia; IVSd: interventricular septum in diastole; LA: left atrium; LV: left ventricle; LVEDD: left ventricular end-diastolic diameter; LVH: left ventricular hypertrophy; LVM: left ventricular mass; LVPWd: left ventricular posterior wall end-diastole; PRBC: packed red blood cells.


Assuntos
Anemia Ferropriva , Hipertensão , Humanos , Masculino , Hipertrofia Ventricular Esquerda , Anemia Ferropriva/complicações , Anemia Ferropriva/terapia , Ecocardiografia , Hipertensão/tratamento farmacológico , Ferro/uso terapêutico
5.
BMJ Case Rep ; 17(2)2024 Feb 17.
Artigo em Inglês | MEDLINE | ID: mdl-38367998

RESUMO

This is the case of a gravida 3 para 1 woman in her late 20s with underlying haemoglobin constant spring who visited a healthcare clinic for an antenatal check-up. Towards the end of her second trimester, she experienced lethargy. During her antenatal booking, she was diagnosed with mild asymptomatic anaemia, high serum ferritin, T saturation of 88% and abnormal liver function tests. She was referred to a hospital where an MRI scan revealed over 2 g of iron deposits in her liver, leading to a revised diagnosis of iron overload. Treatment included deferoxamine and expectant management throughout her antenatal period, and her delivery was uncomplicated. While iron deficiency anaemia is common in pregnancy, it is crucial not to overlook iron deposition and the distinction from acute fatty liver during pregnancy to prevent treatment delays.


Assuntos
Anemia Ferropriva , Anemia , Hemoglobinas Anormais , Sobrecarga de Ferro , Complicações Hematológicas na Gravidez , Feminino , Gravidez , Humanos , Mães , Anemia/etiologia , Ferro/uso terapêutico , Anemia Ferropriva/complicações , Anemia Ferropriva/diagnóstico , Complicações Hematológicas na Gravidez/diagnóstico , Sobrecarga de Ferro/complicações , Atenção Primária à Saúde
6.
Eur Rev Med Pharmacol Sci ; 28(2): 469-476, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38305594

RESUMO

OBJECTIVE: The etiology of disorders may be attributable to multiple causal factors simultaneously. This study sought to investigate how frequently, and which causes coexist in patients with iron deficiency. PATIENTS AND METHODS: All patients who applied to the Iron Deficiency Outpatient Clinic between January and December 2021 were included in this cross-sectional study. The causes of iron deficiency were extracted from patient files. Analyses were conducted on the entire population as well as three subgroups: women of reproductive age, postmenopausal women, and males. Numbers and frequencies of causes of iron deficiency were calculated. The subgroups were compared using the Jamovi software. RESULTS: The study sample comprised a total of 331 patients. Women of reproductive age were the majority of patients admitted to the clinic (86.7%, n=287). Men represented 6.3% of the sample (n=21), and postmenopausal women accounted for 7.0% (n=23). The mean ages were 37.6±9.05, 49.2±15.49 and 57.8±10.84 years, respectively. The overall sample's rate of multiple iron deficiency causes coexisting was 33.5% (n=111) and the subgroups showed similar frequencies for the coexistence of multiple causes. Statistically, the number of simultaneous multiple causes varied between subgroups (χ2=118, df=10, p<0.001). Heavy menstrual bleeding and nonsteroidal anti-inflammatory drug use were the most common dual causes of multiple coexisting conditions (n=46, 41.4%). In terms of the number of causes, the coexistence of two causes of iron deficiency in women was notable, whereas the coexistence of three causes in males was remarkable. Furthermore, it has been found that some patients have up to five coexisting causes of iron deficiency. CONCLUSIONS: Some iron deficiency causes may coexist, and this must be taken into account for the effective management of iron deficiency.


Assuntos
Anemia Ferropriva , Deficiências de Ferro , Menorragia , Masculino , Humanos , Feminino , Anemia Ferropriva/complicações , Anemia Ferropriva/epidemiologia , Estudos Transversais , Hospitalização
7.
Eur Rev Med Pharmacol Sci ; 28(3): 995-1001, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38375703

RESUMO

OBJECTIVE: Migraine is an episodic public health problem that usually occurs with a severe headache. Various mechanisms and outcomes have been reported between iron deficiency anemia (IDA) and migraine. We aimed to investigate the effect of the presence and severity of anemia and iron parameters on the frequency and severity of migraine attacks. PATIENTS AND METHODS: The study included 104 patients with IDA and newly diagnosed migraine in the neurology outpatient clinic and 38 age and gender-matched controls with normal hemoglobin levels. Patients were divided into 3 subgroups (mild, moderate, and severe anemia) to determine a significant relationship between the severity of IDA and migraine attacks. All patients were asked validated questions with the Visual Analogue Scale (VAS), Headache Impact Test-6 (HIT-6), and the Hamilton Anxiety Rating Scale (HAM-A) face-to-face. RESULTS: In this study, 85.6% of the participants were female, and 22 (14.6%) of them were male. Thirty-two mild anemia patients' mean age was 36.6 ± 12.5, 41 with moderate anemia was 46 ± 14.2, and 31 with severe anemia patients' mean age was 48 ± 14.1. There was no significant difference between the subgroups in VAS, HIT-6 score, headache type, and headache frequency. Menstrual migraine is associated with low hemoglobin levels. A significant increase was found in VAS and HIT-6 scores with low ferritin levels. CONCLUSIONS: The presence and severity of anemia and iron deficiency do not affect the frequency and severity of migraine attacks in groups other than menstruation-related migraine. An inverse relationship was found between VAS, HIT-6, and ferritin levels. VAS was found to be more effective than HIT-6.


Assuntos
Anemia Ferropriva , Transtornos de Enxaqueca , Humanos , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Anemia Ferropriva/diagnóstico , Anemia Ferropriva/epidemiologia , Anemia Ferropriva/complicações , Transtornos de Enxaqueca/complicações , Transtornos de Enxaqueca/diagnóstico , Transtornos de Enxaqueca/epidemiologia , Cefaleia/complicações , Hemoglobinas , Ferritinas
8.
J Child Neurol ; 39(1-2): 61-65, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38263607

RESUMO

We describe a series of 7 toddler-aged children with iron deficiency anemia from excessive cow's milk consumption who presented with cerebral venous sinus thrombosis and no other identifiable risk factors for thrombosis. The deep venous system was involved in 6 patients, 6 had venous infarcts, and 5 have significant neurocognitive sequelae.


Assuntos
Anemia Ferropriva , Leite , Trombose dos Seios Intracranianos , Humanos , Trombose dos Seios Intracranianos/complicações , Trombose dos Seios Intracranianos/diagnóstico por imagem , Feminino , Masculino , Pré-Escolar , Leite/efeitos adversos , Anemia Ferropriva/complicações , Animais , Lactente , Imageamento por Ressonância Magnética
9.
J Med Case Rep ; 18(1): 37, 2024 Jan 31.
Artigo em Inglês | MEDLINE | ID: mdl-38291520

RESUMO

BACKGROUND: Visceral Leishmaniasis should be suspected in every patient with a history of splenomegaly, fever, and pancytopenia. It is one of the most dangerous forms of infection and prompt recognition is the key to positive outcome. CASE PRESENTATION: A 20-month-old Caucasian male patient was brought to our hospital as an outpatient with the complaint of persistent fever, which did not improve with empiric antibiotic treatment (> 96 hour after the initial dose). The antibiotic treatment had been prescribed by primary care physician at polyclinic, who also referred the patient to hematologist due to anemia, who prescribed iron supplement. Despite multiple subspecialist visits, bicytopenia was, unfortunately, left unidentified. Upon physical examination no specific signs were detected, however, spleen seemed slightly enlarged. Patient was admitted to the hospital for further work-up, management and evaluation. Abdominal ultrasound, complete blood count and c-reactive protein had been ordered. Hematologist and infectionist were involved, both advised to run serology for Epstein-Barr Virus and Visceral Leishmaniasis. The latter was positive; therefore, patient was transferred to the specialized clinic for specific management. CONCLUSION: Both in endemic and non-endemic areas the awareness about VL should be increased among the medical professionals. We also recommend that our colleagues take the same approach when dealing with bicytopenia and fever, just as with pancytopenia and fever. The medical community should make sure that none of the cases of fever and pancytopenia are overlooked, especially if we have hepatomegaly and/or splenomegaly.


Assuntos
Anemia Ferropriva , Infecções por Vírus Epstein-Barr , Leishmaniose Visceral , Pancitopenia , Humanos , Masculino , Lactente , Leishmaniose Visceral/complicações , Leishmaniose Visceral/diagnóstico , Leishmaniose Visceral/tratamento farmacológico , Pancitopenia/diagnóstico , Anemia Ferropriva/complicações , Esplenomegalia/etiologia , Herpesvirus Humano 4 , Febre/etiologia , Antibacterianos/uso terapêutico , Erros de Diagnóstico
10.
ESC Heart Fail ; 11(1): 513-523, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38088258

RESUMO

AIMS: Iron deficiency (ID) is common in patients with heart failure (HF) and is reportedly associated with exercise intolerance and impaired quality of life. Iron supplementation therapy in HF patients with ID improves exercise capacity. Conversely, protective roles of iron depletion in the development of diabetes mellitus (DM) and its complications have been proposed. This study aimed to determine the impact of ID on physical function in HF patients with and without DM. METHODS AND RESULTS: We enrolled consecutive patients who were admitted to our institute for HF diagnosis and management. The short physical performance battery (SPPB) was used to evaluate physical function, and low physical function was defined as an SPPB score of <10 points as individuals with SPPB scores of <10 points are most likely to be classified as frail and are at high risk for disability and future adverse events, including death. ID was defined as serum ferritin < 100 or 100-299 ng/mL when transferrin saturation (TSAT) was <20% according to the HF guidelines. Among the 562 HF patients (72 ± 14 years old; 56% male), 329 patients (58%) and 191 patients (34%) had ID and low physical function, respectively. Multivariate logistic regression analysis showed that TSAT as a continuous variable, but not ID, was a predictor of low physical function (odds ratio: 0.980, P = 0.024). Subgroup analysis showed that a significant association between low TSAT and low physical function was lost in HF patients with DM (P for interaction < 0.001). A spline dose-response curve for the relationship between TSAT and risk of low physical function with adjustments for covariates associated with low physical function in non-DM patients was almost linear with an increase in the risk of low physical function as the TSAT increased, but such a relationship was not found in the analyses of DM patients. A lack of close TSAT-SPPB relationship in HF patients with DM was confirmed also in a propensity-score-matched cohort. CONCLUSIONS: TSAT as a continuous variable, but not ID, was independently associated with physical function in HF patients, and a significant association was lost in patients with HF and DM, suggesting a limited impact of iron supplementation therapy in HF patients with DM.


Assuntos
Anemia Ferropriva , Diabetes Mellitus , Insuficiência Cardíaca , Deficiências de Ferro , Humanos , Masculino , Pessoa de Meia-Idade , Idoso , Idoso de 80 Anos ou mais , Feminino , Anemia Ferropriva/complicações , Ferritinas , Qualidade de Vida , Ferro , Insuficiência Cardíaca/diagnóstico
11.
Echocardiography ; 41(1): e15726, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38078698

RESUMO

BACKGROUND: Iron deficiency correction with ferric carboxymaltose improves symptoms and reduces rehospitalization in patients with reduced left ventricular ejection fraction. The mechanisms underlying these improvements are poorly understood. This study aimed to determine changes in left ventricular contractility after iron treatment as reflected in global longitudinal strain. METHODS: Prospective single-center study including 43 adults with reduced ejection fraction, non-anemic iron deficiency, and functional class II-III heart failure despite optimal medical treatment. Global longitudinal strain through speckle-tracking echocardiography was measured at baseline and 4 weeks after ferric carboxymaltose. RESULTS: A significant improvement in global longitudinal strain was detected (from -12.3% ± 4.0% at baseline to -15.6% ± 4.1%, p < .001); ferritin and transferrin saturation index had increased, but ejection fraction presented no significant changes (baseline 35.7% ± 4.6%, follow-up 37.2% ± 6.6%, p = .073). CONCLUSIONS: In patients with heart failure and reduced ejection fraction, the correction of iron deficiency with ferric carboxymaltose is associated with an early improvement in global longitudinal strain, possibly suggesting a direct effect of iron correction on myocardial contractility.


Assuntos
Anemia Ferropriva , Insuficiência Cardíaca , Deficiências de Ferro , Maltose/análogos & derivados , Disfunção Ventricular Esquerda , Adulto , Humanos , Volume Sistólico , Estudos Prospectivos , Deformação Longitudinal Global , Função Ventricular Esquerda , Compostos Férricos/uso terapêutico , Compostos Férricos/farmacologia , Ferro/farmacologia , Disfunção Ventricular Esquerda/complicações , Disfunção Ventricular Esquerda/diagnóstico por imagem , Insuficiência Cardíaca/complicações , Insuficiência Cardíaca/diagnóstico por imagem , Anemia Ferropriva/complicações , Anemia Ferropriva/tratamento farmacológico
12.
J Nutr ; 154(3): 875-885, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38072152

RESUMO

BACKGROUND: The current pediatric practice of monitoring for infantile iron deficiency (ID) via hemoglobin (Hgb) screening at one y of age does not identify preanemic ID nor protect against later neurocognitive deficits. OBJECTIVES: To identify biomarkers of iron-related metabolic alterations in the serum and brain and determine the sensitivity of conventional iron and heme indices for predicting risk of brain metabolic dysfunction using a nonhuman primate model of infantile ID. METHODS: Simultaneous serum iron and RBC indices, and serum and cerebrospinal fluid (CSF) metabolomic profiles were determined in 20 rhesus infants, comparing iron sufficient (IS; N = 10) and ID (N = 10) infants at 2 and 4 mo of age. RESULTS: Reticulocyte hemoglobin (RET-He) was lower at 2 wk in the ID group. Significant IS compared with ID differences in serum iron indices were present at 2 mo, but Hgb and RBC indices differed only at 4 mo (P < 0.05). Serum and CSF metabolomic profiles of the ID and IS groups differed at 2 and 4 mo (P < 0.05). Key metabolites, including homostachydrine and stachydrine (4-5-fold lower at 4 mo in ID group, P < 0.05), were altered in both serum and CSF. Iron indices and RET-He at 2 mo, but not Hgb or other RBC indices, were correlated with altered CSF metabolic profile at 4 mo and had comparable predictive accuracy (area under the receiver operating characteristic curve scores, 0.75-0.80). CONCLUSIONS: Preanemic ID at 2 mo was associated with metabolic alterations in serum and CSF in infant monkeys. Among the RBC indices, only RET-He predicted the future risk of abnormal CSF metabolic profile with a predictive accuracy comparable to serum iron indices. The concordance of homostachydrine and stachydrine changes in serum and CSF indicates their potential use as early biomarkers of brain metabolic dysfunction in infantile ID.


Assuntos
Anemia Ferropriva , Encefalopatias , Deficiências de Ferro , Animais , Lactente , Humanos , Criança , Anemia Ferropriva/complicações , Anemia Ferropriva/diagnóstico , Macaca mulatta/metabolismo , Prognóstico , Ferro/metabolismo , Hemoglobinas/metabolismo , Encefalopatias/metabolismo , Biomarcadores , Encéfalo/metabolismo
13.
Minerva Surg ; 79(1): 28-32, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37705393

RESUMO

BACKGROUND: Allogeneic blood transfusions (BT) for patients undergoing colorectal cancer surgery have demonstrated to increase postoperative morbidity and mortality. It has been suggested that the utilization of preoperative iron infusions may reduce the requirement for allogeneic BT in these patients. The aim of this project is to ascertain whether the preoperative use of intravenous iron is significantly associated with a reduction in perioperative blood transfusion requirement. METHODS: A retrospective study of 130 patients was conducted in Blacktown Hospital, Australia. Data pertaining to patient demographics, as well as quantity of preoperative iron infusion and perioperative blood transfusion was collected. RESULTS: Twenty-six (20%) patients required perioperative BT. Twenty-seven underwent preoperative iron infusion, with 20 of them not requiring BT and seven requiring BT. There was no evidence to suggest preoperative iron infusion reduces blood transfusion requirement (RR 1.55, 95% CI 0.57-4.18, P=0.39). For elective procedures, no significance was also demonstrated (RR 1.20, 95% CI 0.29-4.92, P=0.80). CONCLUSIONS: There is no evidence suggesting that preoperative iron infusion reduces the requirement for perioperative blood transfusion in colorectal cancer surgery.


Assuntos
Anemia Ferropriva , Neoplasias Colorretais , Humanos , Ferro/uso terapêutico , Estudos Retrospectivos , Transfusão de Sangue , Anemia Ferropriva/tratamento farmacológico , Anemia Ferropriva/prevenção & controle , Anemia Ferropriva/complicações , Neoplasias Colorretais/cirurgia , Neoplasias Colorretais/complicações
14.
J Pediatr (Rio J) ; 100(2): 124-131, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-37541648

RESUMO

OBJECTIVES: This paper aims to review data on the association of obesity and iron deficiency in children and adolescents, exposing the possible involvement of hepcidin and interleukin-6 (IL-6), obesity's inflammation biomarkers. DATA SOURCE: Articles from PUBMED and WEB OF SCIENCE database with no chronological limit were reviewed to write this systematic review. Keywords such as children, obesity, iron deficiency, and hepcidin were used. After deleting duplicated and review articles, 91 were screened, and 39 were selected as eligible. Sixteen articles were included because they involved serum hepcidin levels in obese children and adolescents as outcomes. SUMMARY OF FINDINGS: Finally, those 16 articles were organized in two tables: one includes therapeutic interventions, and the other does not. As hepcidin was discovered in 2000, the first articles that presented serum hepcidin's quantification in obese children and adolescents, homeostasis iron markers, and their possible association with obesity's inflammatory environment began to be published in 2008. CONCLUSIONS: Obesity's chronic inflammation state leads to the production of IL-6, which acts as a signaling molecule for hepcidin synthesis, resulting in iron deficiency, which is common in obese children and adolescents who respond inadequately to iron supplementation. On the other hand, that population responds adequately to therapeutic intervention programs that lead to weight loss, guaranteeing iron homeostasis improvement. Therefore, perhaps it is time to discuss serum hepcidin level quantification as part of evaluating children and adolescents with iron deficiency, which could guide clinical choices that might lead to better therapeutic outcomes.


Assuntos
Anemia Ferropriva , Deficiências de Ferro , Obesidade Infantil , Adolescente , Criança , Humanos , Obesidade Infantil/complicações , Hepcidinas , Interleucina-6 , Índice de Massa Corporal , Ferro , Inflamação , Biomarcadores , Anemia Ferropriva/complicações , Anemia Ferropriva/epidemiologia
15.
Int Urol Nephrol ; 56(2): 597-606, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37606747

RESUMO

Intravenous iron administration has emerged as a crucial intervention for managing patients with cardiorenal syndrome (CRS) and iron deficiency, with or without the presence of anemia. Multiple studies have demonstrated the benefits of intravenous iron supplementation in improving anemia, symptoms, and functional capacity in patients with HF and iron deficiency. Furthermore, iron supplementation has been associated with a reduction in hospitalizations for HF exacerbation and the improvement of patients' quality of life and clinical outcomes. In addition to its effects on HF management, emerging evidence suggests a potential positive impact on kidney function in patients with CRS. Studies have shown an increase in estimated glomerular filtration rate and improvements in renal function markers in patients receiving intravenous iron therapy, highlighting the potential of this intervention in patients with CRS. This paper reviews the existing literature on the impact of intravenous iron therapy in these patient populations and explores its effects on various clinical outcomes. Future research endeavors are eagerly awaited to further improve our understanding of its clinical implications and optimize patient outcomes.


Assuntos
Anemia Ferropriva , Anemia , Síndrome Cardiorrenal , Insuficiência Cardíaca , Deficiências de Ferro , Humanos , Ferro , Síndrome Cardiorrenal/tratamento farmacológico , Anemia Ferropriva/etiologia , Anemia Ferropriva/complicações , Qualidade de Vida , Insuficiência Cardíaca/complicações , Anemia/tratamento farmacológico , Suplementos Nutricionais
16.
J Nutr ; 154(2): 648-657, 2024 02.
Artigo em Inglês | MEDLINE | ID: mdl-38042351

RESUMO

BACKGROUND: Iron and vitamin D deficiencies have been implicated in sleep disturbance. Although females are more susceptible to these deficiencies and frequently report sleep-related issues, few studies have examined these associations in females. OBJECTIVE: This study investigates the association of iron and vitamin D deficiencies on sleep in a nationally representative sample of females of reproductive age. METHODS: We used 2 samples of 20-49-y-old non-pregnant females from National Health and Nutrition Examination Survey (NHANES) 2005-2008 (N = 2497) and NHANES 2005-2010 and 2015-2018 (N = 6731) to examine the associations of iron deficiency (ID), iron deficiency anemia (IDA), vitamin D deficiency (VDD), vitamin D inadequacy (VDI), and the joint association of both deficiencies with sleep duration, latency, and quality. Sleep outcomes were measured using a self-reported questionnaire. We used the body iron model based on serum ferritin and serum soluble transferrin receptor to identify ID, along with hemoglobin to identify IDA cases. In addition, 25-hydroxyvitamin D levels were used to determine VDD and VDI cases. Logistic regression was used to evaluate these associations, adjusting for potential confounders. In addition, we assessed the multiplicative and additive interactions of both deficiencies. RESULTS: ID and IDA were associated with poor sleep quality, with 1.42 [95% confidence interval (CI): 1.02, 2.00)] and 2.08 (95% CI: 1.29, 3.38) higher odds, respectively, whereas VDD and VDI were significantly associated with short sleep duration, with 1.26 (95% CI: 1.02, 1.54) and 1.22 (95% CI: 1.04, 1.44) higher odds, respectively. Subjects with both nutritional deficiencies had significantly higher odds of poorer sleep quality compared with subjects with neither condition. For sleep quality, a significant multiplicative interaction was observed between ID and VDD (P value = 0.0005). No associations were observed between study exposures and sleep latency. CONCLUSIONS: Among females of reproductive age, iron and vitamin D deficiencies are associated with sleep health outcomes. The potential synergistic effect of both deficiencies warrants further assessment.


Assuntos
Anemia Ferropriva , Deficiências de Ferro , Deficiência de Vitamina D , Humanos , Feminino , Inquéritos Nutricionais , Deficiência de Vitamina D/complicações , Deficiência de Vitamina D/epidemiologia , Ferro , Anemia Ferropriva/complicações , Anemia Ferropriva/epidemiologia , Vitamina D , Sono , Prevalência
17.
J Heart Lung Transplant ; 43(3): 379-386, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38012978

RESUMO

BACKGROUND: There is limited evidence regarding the prevalence and impact of iron deficiency (ID) in children with dilated cardiomyopathy (DCM). METHODS: Retrospective single-center review of all children between 2010 and 2020 with a diagnosis of DCM and complete iron studies. ID was defined as ≥2 of ferritin <20 µg/liter, iron <9 µmol/liter, transferrin >3 g/liter, or transferrin saturation (TSat) <15%. Clinical and laboratory indices and freedom from a composite adverse event (CAE) of mechanical circulatory support (MCS), heart transplant, or death were compared between children with and without ID. RESULTS: Of 138 patients with DCM, 47 had available iron studies. Twenty-nine (62%) were iron deficient. Children with ID were more likely to be receiving inotropes (17, 59%, p = 0.005) or invasive/noninvasive ventilation (13, 45%, p = 0.016) than those who were iron replete. They had a higher incidence of anemia (22, 76%, p = 0.004) and higher NT-proBNP (1,590 pmol/liter, IQR 456-3,447, p = 0.001). Children with ID had significantly less freedom from the CAE at 1-year (54% ± 10%), 2-years (45 ± 10), and 5-years (37% ± 11%) than those without (p = 0.011). ID and anemia were the only significant predictors of the CAE on univariate Cox regression. CONCLUSIONS: ID is highly prevalent in children with DCM. Iron studies are undermeasured in clinical practice, but ID is associated with severe heart failure (HF) and an increased risk of the CAE. The need for iron replacement therapy should be considered in children who present in HF with DCM.


Assuntos
Anemia Ferropriva , Anemia , Cardiomiopatia Dilatada , Insuficiência Cardíaca , Deficiências de Ferro , Humanos , Criança , Anemia Ferropriva/complicações , Anemia Ferropriva/epidemiologia , Estudos Retrospectivos , Cardiomiopatia Dilatada/complicações , Insuficiência Cardíaca/diagnóstico , Ferro , Transferrinas
18.
Ren Fail ; 45(2): 2290926, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38059456

RESUMO

Anemia, a common complication of chronic kidney disease (CKD), is associated with poor prognosis. However, it is not completely clear whether this association is caused by anemia per se or other comorbidities. Whether different types of iron deficiency anemia can predict the outcomes of CKD remains unclear. The dataset from NHANES III was analyzed and Cox multivariate regression models and propensity score matching (PSM) method were used to evaluate the effect of anemia on mortality. Of 4103 patients with CKD, 14.6% had anemia. Among those with anemia, 38.8% had absolute iron deficiency (AID), and 19.8% had functional iron deficiency (FID). During the median follow-up time of 13.8 years, 2964 deaths and 804 cardiovascular deaths were observed. Anemia was robustly associated with a high risk of all-cause mortality in CKD patients after adjusting covariates by two multivariate regression models (Model 1: HR = 1.485, 95%CI:1.340-1.647, p < 0.001; Model 2: HR = 1.391, 95%CI:1.250-1.546, p < 0.001). In the PSM cohort, anemia was still an independent risk factor for all-cause mortality (Model 1: HR = 1.443, 95%CI: 1.256-1.656, p < 0.001; Model 2: HR = 1.357, 95%CI:1.177-1.564, p < 0.001). In the CKD population, anemia patients with FID had the highest risk of mortality than the other anemia groups (p < 0.05), while AID had a mortality rate similar to those without anemia (p > 0.05). In conclusion, anemia was associated with a worse prognosis in patients with CKD, which may be attributed to the higher mortality risk of FID rather than AID. AID wasn't associated with a higher mortality rate compared with CKD patients without anemia.


Assuntos
Anemia Ferropriva , Deficiências de Ferro , Insuficiência Renal Crônica , Humanos , Anemia/complicações , Anemia Ferropriva/complicações , Seguimentos , Inquéritos Nutricionais , Insuficiência Renal Crônica/complicações , Insuficiência Renal Crônica/mortalidade , Fatores de Risco
19.
Rev Bras Ginecol Obstet ; 45(10): e562-e567, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37944922

RESUMO

OBJECTIVE: Pregnancy after bariatric surgery is a reality of the 21st century and therefore is essential that all obstetricians know how to manage it. The most prevalent nutritional deficiency is iron deficiency and, consequently, anemia. Although bariatric surgery and pregnancy are already risk factors for anemia, we evaluated in our study if there were any other risk factors and actions to improve hemoglobin levels in this population. METHODS: We performed a retrospective cohort study, and performed frequency measurements and analyzes of odds ratio, X2 and Fisher exact test to evaluate the risk factors. RESULTS: We evaluated 44 pregnancies after bariatric surgery, with an incidence of anemia of 62%, and the only identifiable risk factor for anemia was being black. As for the treatment, the iron salt used for oral supplementation did not associate with anemia risk, and in 27% of the patients, the adjustment of the oral dosage was enough for improvement in hemoglobin levels, but in 36% supplementation with intravenous iron was necessary. CONCLUSION: Being black is a risk factor for anemia. The type of iron salt does not correlate with the incidence of anemia, and for the treatment and improvement of iron dosages, it seems an effective increase in iron intake.


OBJETIVO: A gestação após cirurgia bariátrica é uma realidade do século XXI e, portanto, é de suma importância que os obstetras saibam conduzir o pré-natal dessas gestantes. A deficiência nutricional mais prevalente nessa população é a deficiência de ferro, que tem como consequência a anemia. Apesar da própria gestação e da cirurgia serem fatores de risco para anemia ferropriva, realizamos um estudo para avaliar se existem outros fatores que são de risco e quais condutas podem melhorar os níveis de hemoglobina nessa população. MéTODOS: Trata-se de um estudo de coorte retrospectiva, e foram realizadas medidas de frequência e análise odds ratio, X2, e teste de exato de Fisher para a avaliação dos fatores de risco. RESULTADOS: Foram avaliadas 44 gestações após cirurgia bariátrica com incidência de anemia de 62%, sendo que o único fator de risco identificado foi a etnia preta. O sal de ferro utilizado na reposição não se associou com o risco de anemia. Em somente 27% das gestantes o ajuste da dose oral de ferro foi suficiente para corrigir a anemia, enquanto em 36% foi necessária a suplementação com ferro endovenoso. CONCLUSãO: Ser de etnia preta foi fator de risco para anemia após cirurgia bariátrica e o tipo de sal de ferro para suplementação não se correlacionou com a incidência de anemia. Para o tratamento da anemia, somente o ajuste da dose da medicação parece ser suficiente para a resolução desta.


Assuntos
Anemia Ferropriva , Anemia , Cirurgia Bariátrica , Gravidez , Feminino , Humanos , Anemia Ferropriva/etiologia , Anemia Ferropriva/complicações , Estudos Retrospectivos , Ferro/uso terapêutico , Cirurgia Bariátrica/efeitos adversos , Anemia/epidemiologia , Anemia/etiologia , Anemia/terapia , Fatores de Risco , Hemoglobinas/análise
20.
BMJ Case Rep ; 16(11)2023 Nov 09.
Artigo em Inglês | MEDLINE | ID: mdl-37945277

RESUMO

This case report presents the clinical evaluation and management of a female patient from a rural background who presented with leg pain, headache, weakness and irritability. Initial investigations revealed iron deficiency anaemia accompanied by a significantly elevated platelet count, prompting suspicion of an underlying myeloproliferative neoplastic disorder. However, subsequent genetic testing ruled out these mutations, suggesting a reactive response to iron deficiency anaemia rather than an independent neoplastic process. Treatment was focused on addressing the underlying iron deficiency anaemia, resulting in significant improvement in the patient's blood profile and resolution of symptoms. Follow-up assessments demonstrated a complete normalisation of the blood profile and platelet counts, further supporting the efficacy of the treatment. This case highlights the importance of considering reactive thrombocytosis in the context of iron deficiency anaemia and emphasises the favourable response achieved through appropriate management strategies.


Assuntos
Anemia Ferropriva , Transtornos Mieloproliferativos , Trombocitose , Feminino , Humanos , Anemia Ferropriva/complicações , Anemia Ferropriva/tratamento farmacológico , Transtornos Mieloproliferativos/complicações , Contagem de Plaquetas , Trombocitose/diagnóstico , Adulto Jovem
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