Observaciones, intuiciones y anécdotas, desde la perspectiva del médico, para una teoría de la historia natural de la continuidad interpersonal. Los colores del tiempo / Observations, insights and anecdotes from the perspective of the physician, for a theory of the natural history of interpersonal continuity. The colors of time

Se aportan elementos para una teoría de la historia natural de la continuidad interpersonal, desde la perspectiva del médico de familia, analizada en base a la reflexión y el recuerdo de dos médicos respecto a su relación con sus pacientes durante 30 años en que han trabajado en el mismo lugar. Es un viaje por los “colores de la historia natural de la continuidad interpersonal”, que cambian al paso del tiempo. Se observa un escenario de demanda creciente cada vez más trivial, con una falta de comprensión por parte del paciente de lo que constituye una buena calidad científico técnica y una comunicación con el médico inapropiada, con una defensa cognitiva y conductual del médico. Podrían describirse distintas tipologías de continuidad interpersonal, que se combinan a lo largo del tiempo, y que esta podría ser discontinua, y experimentarse como “momentos”, presentando efectos positivos y negativos (AU)

Elements for a theory of natural history of interpersonal continuity are provided, from the perspective of the family doctor, analyzed on the reflection and remembrance of two doctors regarding their relationship with their patients during 30 years working in the same place. It is a journey through the “colors of the natural history of interpersonal continuity”, which change over time. A scenario of increasingly trivial growing demand is observed, with a lack of understanding by the patient of what constitutes a good scientific and technical quality and an inappropriate communication with the doctor, which causes a cognitive and behavioral defense from the family doctor. They may describe different types of interpersonal continuity, which combine over time, and that it could be discontinuous, and experienced as “moments”, presenting positive and negative effects (AU)

Recent progress and future direction of cancer epidemiological research in Japan.

In 2006, the Cancer Control Act was approved and a Basic Plan, to Promote the Cancer Control Program at the national level, was developed in 2007. Cancer research is recognized as a fundamental component to provide evidence in cancer control program. Cancer epidemiology plays central role in connecting research and policy, since it directly deals with data from humans. Research for cancer epidemiology in Japan made substantial progress, in the field of descriptive studies, cohort studies, intervention studies and activities for summarizing evidences. In future, promoting high-quality large-scale intervention studies, individual-level linkage studies, simulation models and studies for elderly population will be of great importance, but at the same time research should be promoted in well-balanced fashion not placing too much emphasis on one particular research field.

Behavioral cardiology: current advances and future directions.

Growing epidemiological evidence identifies key domains relevant to behavioral cardiology, including health behaviors, emotions, mental mindsets, stress management, social connectedness, and a sense of purpose. Each of these domains exists along a continuum, ranging from positive factors that promote health, to negative factors, which are pathophysiological. To date, there has been relatively little translation of this growing knowledge base into cardiology practice. Four initiatives are proposed to meet this challenge: 1) promulgating greater awareness of the potency of psychosocial risks factors; 2) overcoming a current "artificial divide" between conventional and psychosocial risk factors; 3) developing novel cost-effective interventions using Internet and mobile health applications, group-based counseling, and development of tiered-care behavioral management; and 4) in recognition that "one size does not fit all" with respect to behavioral interventions, developing specialists who can counsel patients in multidisciplinary fashion and use evidence-based approaches for promoting patient motivation and execution of health goals.

Frequency and predictors of spontaneous hemorrhagic transformation in ischemic stroke and its association with prognosis.

Few prospective studies have examined the frequency, predictors and long-term outcomes of spontaneous hemorrhagic transformation (HT) in patients with ischemic stroke not receiving thrombolytic treatment. We prospectively enrolled a consecutive cohort of 407 patients with ischemic stroke who were admitted within one month of stroke onset. In patients who developed spontaneous HT, the area of the infarct and HT were examined by computed tomography (CT) or magnetic resonance imaging (MRI). Univariate analysis was used to correlate clinical characteristics with appearance of HT, then multivariate logistical regression was used to identify independent predictors of spontaneous HT and factors that predict 3-month prognosis of ischemic stroke. Spontaneous HT was observed in 50 patients (12.3 %), comprising 33 cases (66 %) of hemorrhagic infarction, 17 (34 %) of parenchymal hematoma, 32 (64 %) of non-symptomatic HT, and 18 (36 %) of symptomatic HT. In 40 % of HT cases, the condition was detected by CT or MRI within 4-7 days of symptom onset. Multivariate logistic regression identified atrial fibrillation (OR 4.88, 95 % CI 1.83-13.00, P = 0.002) and infarct area (OR 4.48, 95 % CI 1.85-10.85, P = 0.001) as independent predictors of HT in ischemic stroke. Multivariate analysis also found that spontaneous HT was not independently associated with a worse 3-month prognosis for ischemic stroke (OR 1.59, 95 % CI 0.38-6.69, P = 0.527). Spontaneous HT occurred in 12.3 % of our patients with ischemic stroke, and atrial fibrillation and large infarct area were independent predictors. Spontaneous HT was not an independent predictor of a worse 3-month prognosis for ischemic stroke.

Unintended effects of statins from observational studies in the general population: systematic review and meta-analysis.

BACKGROUND: Efficacy of statins has been extensively studied, with much less information reported on their unintended effects. Evidence from randomized controlled trials (RCTs) on unintended effects is often insufficient to support hypotheses generated from observational studies. We aimed to systematically assess unintended effects of statins from observational studies in general populations with comparison of the findings where possible with those derived from randomized trials. METHODS: Medline (1998 to January 2012, week 3) and Embase (1998 to 2012, week 6) were searched using the standard BMJ Cohort studies filter. The search was supplemented with reference lists of all identified studies and contact with experts in the field. We included prospective studies with a sample size larger than 1,000 participants, case control (of any size) and routine health service linkage studies of over at least one year duration. Studies in subgroups of patients or follow-up of patient case series were excluded, as well as hospital-based cohort studies. RESULTS: Ninety studies were identified, reporting on 48 different unintended effects. Statins were associated with lower risks of dementia and cognitive impairment, venous thrombo-embolism, fractures and pneumonia, but these findings were attenuated in analyses restricted to higher quality studies (respectively: OR 0.74 (95% CI 0.62 to 0.87); OR 0.92 (95% CI 0.81 to 1.03); OR 0.97 (95% CI 0.88 to 1.05); OR 0.92 (95% CI 0.83 to 1.02)); and marked heterogeneity of effects across studies remained. Statin use was not related to any increased risk of depression, common eye diseases, renal disorders or arthritis. There was evidence of an increased risk of myopathy, raised liver enzymes and diabetes (respectively: OR 2.63 (95% CI 1.50 to 4.61); OR 1.54 (95% CI 1.47 to 1.62); OR 1.31 (95% CI 0.99 to 1.73)). CONCLUSIONS: Our systematic review and meta-analyses indicate that high quality observational data can provide relevant evidence on unintended effects of statins to add to the evidence from RCTs. The absolute excess risk of the observed harmful unintended effects of statins is very small compared to the beneficial effects of statins on major cardiovascular events.

Effects of impairment in activities of daily living on predicting mortality following hip fracture surgery in studies using administrative healthcare databases.

BACKGROUND: Impairment in activities of daily living (ADL) is an important predictor of outcomes although many administrative databases lack information on ADL function. We evaluated the impact of ADL function on predicting postoperative mortality among older adults with hip fractures in Ontario, Canada. METHODS: Sociodemographic and medical correlates of ADL impairment were first identified in a population of older adults with hip fractures who had ADL information available prior to hip fracture. A logistic regression model was developed to predict 360-day postoperative mortality and the predictive ability of this model were compared when ADL impairment was included or omitted from the model. RESULTS: The study sample (N = 1,329) had a mean age of 85.2 years, were 72.8% female and the majority resided in long-term care (78.5%). Overall, 36.4% of individuals died within 360 days of surgery. After controlling for age, sex, medical comorbidity and medical conditions correlated with ADL impairment, addition of ADL measures improved the logistic regression model for predicting 360 day mortality (AIC = 1706.9 vs. 1695.0; c -statistic = 0.65 vs 0.67; difference in - 2 log likelihood ratios: χ(2) = 16.9, p = 0.002). CONCLUSIONS: Direct measures of ADL impairment provides additional prognostic information on mortality for older adults with hip fractures even after controlling for medical comorbidity. Observational studies using administrative databases without measures of ADLs may be potentially prone to confounding and bias and case-mix adjustment for hip fracture outcomes should include ADL measures where these are available.

Migraine-related gray matter and white matter changes at a 1-year follow-up evaluation.

UNLABELLED: To assess the longitudinal gray matter (GM) and white matter (WM) changes between repeated observations 1 year apart in a group of the early clinical stage of migraine patients without aura, and to explore the relationship of such structural changes with headache activity, we studied patients newly diagnosed with episodic migraine lasting 8 to 14 weeks. Optimized voxel-based morphometry and tract-based spatial statistical analyses were used to evaluate changes in GM and WM by using 3-dimensional T1-weighted and diffusion-tensor imaging, respectively. At the 1-year follow-up examination, GM reduction was observed in the dorsolateral and medial part of the superior frontal gyrus, orbitofrontal cortex, hippocampus, precuneus, and primary and secondary somatosensory cortices. No significant differences were found in the fractional anisotropy and longitudinal, radial, and mean diffusivity of WM in migraine patients without aura within a year. Negative results were found for the association between changes in headache activity parameters and GM. Our results indicated that the GM and WM changed in different pathophysiological conditions of migraine patients without aura. The WM probably evolves slowly in the course of migraine chronicity. PERSPECTIVE: Our study found early involvement of GM reduction of sensory-discriminative brain regions in the pathologic process of migraine, but the WM did not exhibit significant changes in the same time interval. GM reduction in sensory-discriminative brain regions may characterize the pathophysiological features of migraine patients without aura in its early stage.

The clinical significance of small endometrial polyps.

OBJECTIVE: Small endometrial polyps are relatively common in asymptomatic women and may regress spontaneously. In symptomatic women, the finding of a small polyp (<1cm diameter) raises the question of the clinical pertinence and necessity of excision. Sparse data are available on the effectiveness of hysteroscopic excision of small polyps to manage abnormal uterine bleeding. The aim of this study was to assess outcome after hysteroscopic excision of small endometrial polyps in symptomatic patients. STUDY DESIGN: This was an observational cohort study enrolling 255 premenopausal women presenting with abnormal uterine bleeding and a small endometrial polyp on office hysteroscopy, undertaken between January 2004 and February 2007. The study group was referred for polypectomy by operative hysteroscopy. The outcome of the procedure was reviewed 6-12 months later by a telephone interview to assess the pattern of uterine bleeding after the procedure and overall satisfaction. RESULTS: Significant improvement in the magnitude of bleeding was experienced by 70% of participants, but only 30% of them reported return to regular menses. Satisfaction with the procedure was reported by 80%. Younger patients reported a less favorable bleeding pattern and were found to be less satisfied with the outcome of the procedure. CONCLUSIONS: Symptomatic women with small endometrial polyps can be treated safely and efficiently with hysteroscopic excision. In the younger age group of patients, however, the outcome of the procedure may be less favorable and may necessitate the addition of endometrial ablation to improve outcome and increase patient satisfaction.