Mejoría de la capacidad funcional tras tratamiento con levotiroxina en pacientes con insuficiencia cardíaca crónica e hipotiroidismo subclínico

AimTo assess whether levothyroxine treatment improves functional capacity in patients with chronic heart failure (New York Heart Association class i-iii) and subclinical hypothyroidism.MethodsOne hundred and sixty-three outpatients with stable chronic heart failure followed up for at least 6 months were enrolled. A physical examination was performed, and laboratory tests including thyroid hormone levels, Doppler echocardiogram, radionuclide ventriculography, and Holter monitoring were requested. Functional capacity was assessed by of the 6-min walk test. Patients with subclinical hypothyroidism were detected and, after undergoing the s6-min walk test, were given replacement therapy. When they reached normal thyrotropin (TSH) levels, the 6-min walk test was performed again. The distance walked in both tests was recorded, and the difference in meters covered by each patient was analyzed.ResultsPrevalence of subclinical hypothyroidism in patients with heart failure was 13%. These patients walked 292 ± 63 m while they were hypothyroid and 350 ± 76 m when TSH levels returned to normal, a difference of 58 ± 11 m (P < .011). Patients with normal baseline TSH levels showed no significant difference between the 2 6-min walk tests.ConclusionsPatients with chronic heart failure and subclinical hypothyroidism significantly improved their physical performance when normal TSH levels were reached.     

Evaluación de la efectividad del tratamiento con glucocorticoides intravenosos en la oftalmopatía de Graves

ObjectiveTo assess the efficacy of intermittent, high-dose treatment with intravenous glucocorticoids (IV GCs) in moderate to severe Graves’ ophthalmopathy (GO).Materials and methodsPatients with GO treated with IV GCs from August 2007 to August 2011 at the Endocrinology Department of Reina Sofía Hospital were enrolled into the study. IV pulse prednisolone (7.5 mg/kg/day) was administered twice weekly every two weeks for 6 weeks, and at half the dose for 6 additional weeks.ResultsEighteen patients (mean age, 43+/-11 years) with moderate to severe GO were analyzed (83.3% females). Four were active smokers, five former smokers, and the rest had never smoked. Hyperthyroidism due to Graves’ disease was found in 66.7% of patients, 41.6% of whom had received radioiodine therapy. Response to treatment was satisfactory in 72.2%, partial in 11.1%, and poor in 16.7%. Mild side effects were reported by 5 patients. Before treatment, 83.3% had diplopia, 33.3% eyelid retraction, 72.2% eye pain, and 44.4% exophthalmos. After treatment, only 33.3% had diplopia (P = .004), 5.6% eyelid retraction (P = .063), 16.7% eye pain (P = .002), and 11.1% exophthalmos (P = .031). Response to treatment was not related to the underlying disease (P = .866), prior radioiodine treatment (P = .447), or smoking status (P = .368).ConclusionsIntravenous glucocorticoid therapy decreased activity in patients with moderate to severe active GO, with major improvement occurring in diplopia, eye pain, and exophthalmos. Side effects were mild and uncommon. Treatment response was independent from the underlying disease, prior radioiodine treatment, or smoking status.     

Perfil lipídico en mujeres obesas y no obesas con síndrome de ovarios poliquísticos tratadas con metformina

ObjectiveTo compare lipid and lipoprotein concentrations between obese and non-obese women with a diagnosis of polycystic ovary syndrome (PCOS) treated with metformin for 6 months.MethodsSixty-five women with a diagnosis of PCOS were included. The presence of obesity, serum concentrations of cholesterol, triglycerides, high-density lipoprotein cholesterol (HDL-c) and low-density lipoprotein cholesterol (LDL-c) were recorded before and after 6 months of metformin treatment. The women were divided in two groups of 34 obese women (group A; body mass index >27 kg/m²) and 31 non-obese women (group B; body mass index (<27 kg/m²).ResultsSignificant differences in body mass index, waist-hip ratio, cholesterol, triglycerides, LDL-c and HDL-c were found in group A compared with group B (p<0.05). In obese women, serum triglyceride and LDL-c concentrations were significantly reduced (p<0.05), while serum concentrations of HDL-c were significantly increased (p<0.05) after 6 months of treatment. In non-obese women, none of these lipid profile modifications were considered significant (p=ns).ConclusionMetformin use for 6 months modified triglyceride, LDL-c and HDL-c concentrations compared with initial values in obese women with PCOS while no significant modifications in lipid or lipoprotein concentrations were observed in non-obese women.     

Rol del enterocito en la dislipemia de la resistencia insulínica

The increase in cardiovascular morbidity and mortality associated to insulin resistance (IR) states (obesity, metabolic syndrome, type 2 diabetes) represents a major public health problem. In IR, dyslipidemia typically include hypertriglyceridemia, low high density lipoprotein cholesterol, increased small and dense low density lipoprotein particles, and post-prandial hyperlipidemia, which play a direct or indirect role in the mecanisms of atherosclerosis. Dyslipidemia is mainly due to accumulation of circulating triglyceride-rich lipoproteins from the liver and bowel. The bowel has traditionally been seen as a passive organ, but current evidence confirms that it is an active organ subject to regulation by free fatty acids, insulin, incretins, and inflammation. Two new concepts have emerged: intestinal IR and overproduction of chylomicrons in hyperinsulinemic/IR states. A better understanding of intestinal IR may make the enterocyte a therapeutic target.     

Características y factores asociados a caídas en pacientes con enfermedad cerebrovascular

Objectiveto asses the characteristics and factors associated with falls during hospitalisation among elderly stroke patients.Material and methodswe studied 1,410 subjects (60.1% female), aged 65 years and older (80.6 ± 6.9 years), admitted to a geriatric stroke unit between 2000 and 2003. We recorded demographic, clinical and functional variables and evaluated the characteristics and management of falls. The variables showing an association with falls in bivariate analyses were subsequently included in a multivariate logistic regression analysis.Resultsthe incidence rate of falls was 10.49% in 115 patients. The variables showing statistical association (p < 0.05) with falls were age (78.7 vs 80.8) and gender (10.5% male vs 6.6% female), arm strength (2.8 vs 2.3), leg strength (3.2 vs 2.6) and being classified in the group with moderate stroke (47.8%) compared with patients without falls (29.3%). Falls were more frequent in patients with depression (13% vs 7%) and delirium (27% vs 6%). The variables that remained significant in the multivariate logistic regression model for falls were: delirium (OR = 4.691 [2.930-7.511]), mild stroke (OR: 0.347 [0.154-0.782]), age (OR = 0.958 [0.929-0.987]), depression (OR = 1.760[1.095-2.828]), arm strength (OR = 1.233 [1.058-1.438]), and Barthel Index prior to the fall (OR = 1.013 [1.002-1.024]).Conclusionspatients with falls are younger, with a higher previous functional status and with lesser neurological severity on admission. The presence of depression and delirium are frequently associated.     

Especies de Aspergillus en ambientes hospitalarios con pacientes pediátricos en estado crítico

BackgroundAspergillus is a group of opportunistic fungi that cause infections, with high morbimortality in immunosuppressed patients. Aspergillus fumigatus is the most frequent species in these infections, although the incidence of other species has increased in the last few years.AimsTo evaluate the air fungal load and the diversity of Aspergillus species in hospitals with pediatric patients in critical condition.MethodsThe Intensive Care Unit and Burns Unit of a pediatric hospital were sampled every 15 days during the autumn and spring seasons. The air samples were collected with SAS Super 100^® and the surface samples were collected by swab method.ResultsThe UFC/m³ counts found exceeded the acceptable levels. The UFC/m³ and the diversity of Aspergillus species found in the Intensive Care Unit were higher than those found in the Burns Unit. The fungal load and the diversity of species within the units were higher than those in control environments. The use of both methods –SAS and swab– allowed the detection of a higher diversity of species, with 96 strains of Aspergillus being isolated and 12 species identified. The outstanding findings were Aspergillus sydowii, Aspergillus niger, Aspergillus flavus, Aspergillus terreus and Aspergillus parasiticus, due to their high frequency. Aspergillus fumigatus, considered unacceptable in indoor environments, was isolated in both units.ConclusionsAspergillus was present with high frequency in these units. Several species are of interest in public health for being potential pathogenic agents. Air control and monitoring are essential in the prevention of these infections.     

Prevención de las caídas basada en la evidencia en Europa

ProFaNE (Prevention of Falls Network Europe) is a thematic network funded by the European Commission. This network brings together scientists, clinicians and other health professionals from across Europe to focus on four main topics (taxonomy and co-ordination of trials, clinical assessment and management of falls, assessment of balance function, and psychological aspects of falls). There are 24 members across Europe as well as Network Associates who contribute expertise at workshops and meetings. ProFa- NE, a 4-year project which started in January 2003, aims to improve and standardise healthcare processes by introducing and promoting good practice throughout Europe. ProFaNE has its own website (http://www.profane.eu.org) and undertakes workshops to bring together experts and observers involved in specific topics to exchange knowledge, expertise and resources on interventions to reduce falls. The present article discusses ProFaNE's achievements to date and the work in progress to achieve good clinical practice and research into the prevention of falls across Europe.     

Uso de sujeciones físicas en relación con el riesgo de caídas en una residencia de ancianos

Backgrounds and objectivesThe use of physical restraints (PR) is common in the care of the elderly. However, their efficacy and safety are not supported by scientific evidence. The aim of this study was to determine the role of PR in preventing falls.Materials and methodsA retrospective cohort study design was used, in which each fall incident (n = 575) was examined in the residents over 65 years of age who resided at the one nursing homes from February 2009 to September 2013. An analysis was made of the association between the use of PR and risk of falls using a multivariate logistic regression, adjusting for the characteristics of residents that were associated with the use of PR according to a bivariate analysis.ResultsRisk factors for falls after accounting for PR use, include: risk of falling (Tinetti test) (OR 4.57; 95% CI 1.76-11.75); ability to walk (OR 6.40; 95% CI 2.78-14.74); hearing impairment (OR 2.12; 95% CI 1.05-4.29); and history of a previous fall (OR 17.81; 95% CI 8.83-35.93). The risk of falls was greater in restrained, ambulatory residents with cognitive impairment (OR 18.95; 95% CI 7.06-50.85). No differences were found in injuries between falls that occurred with and without PR.ConclusionsRestraint use was not significantly associated with fewer falls and injuries. The risk of falls could increase in ambulatory residents with cognitive impairment. The study results suggest the need to consider whether restraints provide adequate protection against the risk of falls.     

Mortalidad en pacientes con demencia que cursaron internación en unidades de cuidados críticos

ObjectiveTo determine the mortality and comorbidities associated of patients with dementia admitted to the Intensive Care Unit (ICU) on the hospitalization and at one year of follow-up.Materials and methodsA retrospective observational cohort study was carried out between 2012 and 2017 at the Hospital Italiano de San Justo, of patients who were admitted to the ICU, these were observed up to hospitalary death, out hospital death one year of hospitalization, the disenrollment from the institution's health plan or the end of the follow-up.ResultsA total of 163 patients were included for analysis. We recorded those 79 patients (48.47%) died one year after the hospitalization, of them 25 (15.34%) in ICU and 8 (4.91%) in general room. The most frequent causes of death were respiratory. The factors most associated with mortality were: orotracheal intubation (HR = 2.01; 95% CI: 1.11-3.65; P = .02), history of leukemia (HR = 8.55; 95% CI: 1.82-40.05; P ≤ .05), elevated Charlson (HR = 1.16, 95% CI: 1.04-1.41; P = .05), and elevated APACHE II at admission (HR = 1.07; 95% CI: 1.03-1.11; P ≤ .05).ConclusionsThe present study expresses the prognosis of patients with a diagnosis of dementia admitted to the ICU and that depends not only on their baseline neurological status but also on the severity at admission and comorbidities.     

Determinación de la certeza diagnóstica de la gammagrafía tiroidea con tecnecio 99 sestamibi en pacientes con nódulo tiroideo y resultado histopatológico definitivo

Background99mTc sestamibi scanning and aspiration biopsy can predict the histopathological result of a thyroid nodule fairly accurately.ObjectiveTo determine the accuracy of 99mTc sestamibi scanning in detecting malignancy in patients with thyroid nodule confirmed by definitive histopathological report after thyroidectomy.Material and methodsA total of 69 patients with a solitary thyroid nodule were studied. In all patients, fine needle aspiration, total thyroidectomy for suspected thyroid cancer, and histological analysis of the surgical specimen were performed. There were 54 patients with a positive 99mTc sestamibi scan; of these, malignancy was confirmed by histological analysis in 25 and excluded in 29. There were 15 patients with a negative 99mTc sestamibi scan; of these, three had a final diagnosis of cancer and 12 were confirmed as cancer-free.ResultsThe diagnostic accuracy of 99mTc sestamibi scanning in detecting malignancy in thyroid nodules was determined through a statistical analysis. 99mTc sestamibi scan for thyroid cancer had a sensitivity of 89.28% and a specificity of 29.25%. The positive predictive value was 46.29% and the negative predictive value was 80%.ConclusionsWe believe that 99mTc sestamibi scan should be routinely used in all patients with a thyroid nodule and an indeterminate result on fine needle aspiration. This procedure is most useful in excluding malignancy in patients with a negative 99mTc sestamibi scan.     

Distribución de la circunferencia de la cintura y de la relación circunferencia de la cintura con respecto a la talla según la categoría del índice de masa corporal en los pacientes atendidos en consultas de endocrinología y nutrición

IntroductionWaist circumference (WC) and the waist-to-height ratio (WHtR) are anthropometric measures widely used in clinical practice to evaluate visceral fat and the consequent cardiovascular risk. However, risk thresholds should be standardized according to body mass index (BMI).ObjectiveTo determine the distribution of WC and WHtR according to the BMI cut-points currently used to describe overweight and obesity.Materials and methodsWC, WHtR and BMI were measured in 3521 adult patients (>18 years) attended in Endocrinology and Nutrition units.ResultsA total of 20.8% (734 patients) were diabetic. Obesity was found in 82.1% of diabetic patients and in 75% of non-diabetic patients. The WC thresholds proposed by the National Institute of Health (102 cm in men, 88 cm in women), Bray (100 cm in men, 90 cm in women) and the International Diabetes Federation (94 cm in men, 80 cm in women) were exceeded by 92.9%, 94.8% and 98.4% of obese men, 96.8%, 95.5% and 99.7% of obese women, 79.1%, 83.1% and 90% of diabetic men and 95.5%, 81.5% and 97.4% of diabetic women, respectively. Thresholds adapted to the degree of obesity (90, 100, 110 and 125 cm in men and 80, 90, 105 and 115 cm in women for normal BMI, overweight, obesity I and obesity greater than I) were exceeded by 58.4% of obese men, 54.2% of obese women, 57.5% of diabetic men and 60.7% of diabetic women. WC was higher in men, and BMI and the WHtR were higher in women. The WC of diabetic women equalled that of men, and WC, WHtR and BMI were higher in diabetic than in non-diabetic women (p<0.001). WC (p<0.005), WHtR (p<0.001) and BMI (p<0.5) were also higher in diabetic than in non-diabetic men.ConclusionWC and WHtR thresholds by BMI discriminated diabetic and obese patients better than single thresholds, and can be represented graphically by the distribution of percentile ranks of WC and WHtR by BMI.ik     

Utilidad clínica de la micafungina en el tratamiento de las candidiasis invasoras en el paciente crítico

BackgroundOver the last 30 years a significant increase of Candida spp. invasive disease has been observed in non-neutropenic critical ill patients. Both fluconazole and amphotericin B have been considered first line treatment for invasive (proven and probable) Candida spp. disease, although the mortality rate is still high.ObjectivesTo review the current data on the use of micafungin for the treatment of Candida invasive disease in critical ill patients.MethodsThe pharmacologic, mycological and clinical properties of micafungin are reviewed based on current published data. The use and efficacy of micafungin for the treatment of Candida invasive disease in critical ill patients is discussed.Results and conclusionsTo reduce the rate of mortality more effective antifungals and pre-emptive treatment strategies are currently warranted. Candins achieve better results for the treatment of invasive Candida disease in non-neutropenic critical ill patients. Micafungin has a good safety profile (similar to fluconazole). Micafungin is a first line drug for the treatment of invasive Candida disease and may be used as a pre- emptive approach followed by a de-escalating strategy with azoles.     

El anciano en la unidad de geriatría de agudos

Although the implementation of acute geriatric units (AGUs) in general hospitals has a grade A of evidency, in Spain, only 12% of them have this resource. The estimation of geriatric especializad beds for the care of acute frail elderly people is of 2.6/1000 inhabitants older than 75 years. AGUs have demonstrated to reduce the functional loss associated with the hospitalization and to increase the percentage of older people that can return home, without increases in mortality nor costs. In this review we present the characteristics of patients who benefit from AGUs, the services offered, the structure and functioning of the unit, the role of the professionals that work in it and the quality indicators that must be acomplished.