Differential analysis of histopathological and genetic markers of cancer aggressiveness, and survival difference in EBV-positive and EBV-negative prostate carcinoma.

Several studies have shown an association between prostate carcinoma (PCa) and Epstein-Barr virus (EBV); however, none of the studies so far have identified the histopathological and genetic markers of cancer aggressiveness associated with EBV in PCa tissues. In this study, we used previously characterized EBV-PCR-positive (n = 39) and EBV-negative (n = 60) PCa tissues to perform an IHC-based assessment of key histopathological and molecular markers of PCa aggressiveness (EMT markers, AR expression, perineural invasion, and lymphocytic infiltration characterization). Additionally, we investigated the differential expression of key oncogenes, EMT-associated genes, and PCa-specific oncomiRs, in EBV-positive and -negative tissues, using the qPCR array. Finally, survival benefit analysis was also performed in EBV-positive and EBV-negative PCa patients. The EBV-positive PCa exhibited a higher percentage (80%) of perineural invasion (PNI) compared to EBV-negative PCa (67.3%) samples. Similarly, a higher lymphocytic infiltration was observed in EBV-LMP1-positive PCa samples. The subset characterization of T and B cell lymphocytic infiltration showed a trend of higher intratumoral and tumor stromal lymphocytic infiltration in EBV-negative tissues compared with EBV-positive tissues. The logistic regression analysis showed that EBV-positive status was associated with decreased odds (OR = 0.07; p-value < 0.019) of CD3 intratumoral lymphocytic infiltration in PCa tissues. The analysis of IHC-based expression patterns of EMT markers showed comparable expression of all EMT markers, except vimentin, which showed higher expression in EBV-positive PCa tissues compared to EBV-negative PCa tissues. Furthermore, gene expression analysis showed a statistically significant difference (p < 0.05) in the expression of CDH1, AR, CHEK-2, CDKN-1B, and CDC-20 and oncomiRs miR-126, miR-152-3p, miR-452, miR-145-3p, miR-196a, miR-183-3p, and miR-146b in EBV-positive PCa tissues compared to EBV-negative PCa tissues. Overall, the survival proportion was comparable in both groups. The presence of EBV in the PCa tissues results in an increased expression of certain oncogenes, oncomiRs, and EMT marker (vimentin) and a decrease in CD3 ITL, which may be associated with the aggressive forms of PCa.

Diagnosis of Endometriosis Based on Comorbidities: A Machine Learning Approach.

Endometriosis is defined as the presence of estrogen-dependent endometrial-like tissue outside the uterine cavity. Despite extensive research, endometriosis is still an enigmatic disease and is challenging to diagnose and treat. A common clinical finding is the association of endometriosis with multiple diseases. We use a total of 627,566 clinically collected data from cases of endometriosis (0.82%) and controls (99.18%) to construct and evaluate predictive models. We develop a machine learning platform to construct diagnostic tools for endometriosis. The platform consists of logistic regression, decision tree, random forest, AdaBoost, and XGBoost for prediction, and uses Shapley Additive Explanation (SHAP) values to quantify the importance of features. In the model selection phase, the constructed XGBoost model performs better than other algorithms while achieving an area under the curve (AUC) of 0.725 on the test set during the evaluation phase, resulting in a specificity of 62.9% and a sensitivity of 68.6%. The model leads to a quite low positive predictive value of 1.5%, but a quite satisfactory negative predictive value of 99.58%. Moreover, the feature importance analysis points to age, infertility, uterine fibroids, anxiety, and allergic rhinitis as the top five most important features for predicting endometriosis. Although these results show the feasibility of using machine learning to improve the diagnosis of endometriosis, more research is required to improve the performance of predictive models for the diagnosis of endometriosis. This state of affairs is in part attributed to the complex nature of the condition and, at the same time, the administrative nature of our features. Should more informative features be used, we could possibly achieve a higher AUC for predicting endometriosis. As a result, we merely perceive the constructed predictive model as a tool to provide auxiliary information in clinical practice.

Reproductive and Obstetric Outcomes after Fertility-Sparing Treatments for Cervical Cancer: Current Approach and Future Directions.

Cervical cancer is one of the leading causes of cancer-related death in women of reproductive age. The established fertility-sparing approaches for the management of early-stage cervical cancer for women who plan pregnancy are associated with a decline in fecundity and an increased risk of pregnancy complications. This article aims to offer an overview of fertility-sparing approaches and the management of potential subfertility and pregnancy complications after these treatments. An extensive search for the available data about infertility and cervical cancer, fertility-sparing techniques in patients with cervical cancer, fertility treatment, obstetrical complications, and pregnancy outcomes in cervical cancer patients was completed. Fertility-preserving procedures such as loop electrosurgical excision procedure (LEEP), cold-knife conization, and trachelectomy in women diagnosed with cervical cancer can be considered as safe and effective treatments that preserve reproductive potential. Current fertility-preserving procedures, based on the balance of the oncological characteristics of patients as well as their desire for reproduction, allow one to obtain acceptable reproductive and obstetric outcomes in women treated for cervical cancer. Nevertheless, careful monitoring of pregnancies obtained after fertility-preserving procedures is recommended, since this cohort of patients should be considered at higher risk compared with a healthy population.

Reproductive and Obstetric Outcomes after UAE, HIFU, and TFA of Uterine Fibroids: Systematic Review and Meta-Analysis.

Novel treatment options for uterine fibroids, such as uterine artery embolization (UAE), ultrasound-guided and magnetic resonance-guided high-intensity focused ultrasound (USgHIFU and MRgHIFU), and transcervical radiofrequency ablation (TFA) methods, are widely used in clinical practice. This systematic review and meta-analysis (CRD42022297312) aims to assess and compare reproductive and obstetric outcomes in women who underwent these minimally invasive approaches for uterine fibroids. The search was performed in PubMed, Google Scholar, ScienceDirect, Cochrane Library, Scopus, Web of Science and Embase. Risk of bias was assessed using the Newcastle-Ottawa Scale (NOS) and Cochrane guidelines. The articles were selected to meet the following eligibility criteria: (1) research article, (2) human subject research, and (3) the study of pregnancy outcomes after the treatment of uterine fibroids by either one of three methods-UAE, HIFU, and TFA. The analysis of 25 eligible original articles shows a similar rate of live births for UAE, USgHIFU, MRgHIFU, and TFA (70.8%, 73.5%, 70%, and 75%, respectively). The number of pregnancies varied considerably among these studies, as well as the mean age of pregnant women. However, the results of pregnancy outcomes for TFA are insufficient to draw firm conclusions, since only 24 women became pregnant in these studies, resulting in three live births. The miscarriage rate was highest in the UAE group (19.2%). USgHIFU was associated with a higher rate of placental abnormalities compared to UAE (2.8% vs. 1.6%). The pooled estimate of pregnancies was 17.31% to 44.52% after UAE, 18.69% to 78.53% after HIFU, and 2.09% to 7.63% after TFA. The available evidence confirmed that these minimally invasive uterine-sparing treatment options for uterine fibroids are a good approach for patients wishing to preserve their fertility, with comparable reproductive and obstetric outcomes among the different techniques.

Risk Factors and Outcomes in Critically Ill Patients with Hematological Malignancies Complicated by Hospital-Acquired Infections.

Background and objectives: Patients admitted to the intensive care unit (ICU) have an increased risk of hospital-acquired infection (HAI). A diagnosis of cancer alone increases the risk of sepsis three-five-fold, which further increases the risk of nosocomial infection, subsequently deteriorates results, and leads to high mortality. In this study, we aimed to assess the mortality rate among hematologic oncologic patients with suspected infection who were subsequently admitted to the ICU and the predictive factors that are associated with high ICU mortality. Materials and Methods: This retrospective cohort study was conducted in the hematological oncology critical care unit of a tertiary care hospital between November 2017 and February 2021. We analyzed anonymized medical records of hospitalized hematologic oncologic patients who were suspected or proven to have infection in the hematology-oncology department and were subsequently transferred to the ICU. Results: Both shorter hospitalization and shorter ICU stay length were observed in survivors [9.2 (7.7-10.4)] vs. non-survivors [10 (9.1-12.9), p = 0.004]. Sepsis had the highest hazard ratio (7.38) among all other factors, as patients with sepsis had higher mortality rates (98% among ICU non-survivors and 57% among ICU survivors) than those who had febrile neutropenia. Conclusions: The overall ICU mortality in patients with hematologic malignancies was 66%. Sepsis had the highest hazard ratio among all other predictive factors, as patients with sepsis had higher mortality rates than those who had febrile neutropenia. Chronic hepatitis (HBV and HCV) was significantly associated with higher ICU mortality.

Analysis of differential gene expression of pro-inflammatory cytokines in the nasopharyngeal milieu of mild & severe COVID-19 cases.

INTRODUCTION: A subset of individuals with COVID-19 can suffer from a severe form of the disease requiring breathing support for respiratory failure and even death due to disease complications. COVID-19 disease severity can be attributed to numerous factors, where several studies have associated changes in the expression of serum pro-inflammatory cytokines with disease severity. However, very few studies have associated the changes in expression of pro-inflammatory changes in the nasopharyngeal milieu with disease severity. Therefore, in the current study, we performed differential gene expression analysis of various pro-inflammatory cytokines in the nasopharyngeal milieu of mild & severe COVID-19 cases. MATERIAL AND METHOD: For this retrospective, cross-sectional study, a total of 118 nasopharyngeal swab samples, previously collected from mild and severe (based on the WHO criteria) COVID-19 patients were used. A real-time qPCR was performed to determine the viral loads and also evaluate the mRNA expression of eight cytokines (IL-1, IL-2, IL-4, IL-6, IL-10, IFN-γ, TGF-ß1, and TNF-α). Subsequently, an unpaired T-test was applied to compare the statistical difference in mean expression of viral loads and each cytokine between the mild and severe groups, while the Pearson correlation test was applied to establish a correlation between disease severity, viral load, and cytokines expression. Similarly, a multivariable logistic regression analysis was performed to assess the relationship between different variables from the data and disease severity. RESULTS: Out of 118 samples, 71 were mild, while 47 were severe. The mean viral load between the mild and severe groups was comparable (mild group: 27.07± 5.22; severe group: 26.37 ±7.89). The mRNA expression of cytokines IL-2, IL-6, IFN- γ, and TNF-α was significantly different in the two groups (p<0.05), where the Log2 normalized expression of IL-2, IL-6, IFN- γ, and TNF-α was found to be 2.2-, 16-, 2.3-, and 1.73-fold less in the severe group as compared to the mild group. Furthermore, we also observed a significant positive correlation between all the cytokines in the severe group. The multivariate analysis showed a significant relationship between age, IL-6, and disease severity. CONCLUSION: This decreased expression of certain cytokines (IL-2, IL-6, TNF-α, and IFN-γ) in the nasopharyngeal milieu may be considered early biomarkers for disease severity in COVID-19 patients.

Epidemiology of type 1 and type 2 diabetes mellitus in Kazakhstan: data from unified National Electronic Health System 2014-2019.

BACKGROUND: We aimed to explore descriptive epidemiology of T1 and T2 Diabetes Mellitus (DM) and to investigate demographic factors and comorbidities associated with all-cause mortality by aggregating and utilizing large-scale administrative healthcare data from the Unified National Electronic Health System (UNEHS) of Kazakhstan for 2014-2019 years period. METHODS: A total of 475,539 individuals were included in the analyses. The median years of follow-up for Type 1 DM patients accounted for 4.7 years and 4.5 years in Type 2 DM patients. We used Kaplan-Meier and log-rank test to calculate failure function and differences in survival by age, sex, ethnicity, and comorbidities with all-cause mortality for Type 1 and Type 2 DM. Cox proportional hazards regression analysis was used to obtain crude and adjusted hazard ratios. RESULTS: Prevalence of Type 1 and Type 2 DM increased 1.7 times from 2014 to 2019. Mortality of Type 1 and Type 2 DM also increased 4 times and 6 times from 2014 to 2019, respectively. Male sex, older age and Kazakh ethnicity were associated with a higher risk of all-cause death compared to females, younger age and other nationalities than Kazakh in patients with Type 1 and Type 2 DM. Coronary artery disease, diabetic nephropathy, stroke, amputations and neoplasms were associated with a higher risk of all-cause death. CONCLUSION: The prevalence and mortality rate of Type 1 and Type 2 DM increased during the years 2014-2019 in Kazakhstan. Male sex, older age and Kazakh ethnicity were associated with a higher risk of all-cause death compared to females, younger age and other nationalities than Kazakh. Coronary artery disease, diabetic nephropathy, stroke, amputations and neoplasms were associated with a higher risk of all-cause death.

Incidence and mortality rates of strokes in Kazakhstan in 2014-2019.

There is a lack of information on the epidemiology of acute ischemic stroke (AIS), intracerebral hemorrhage (ICH), and subarachnoid hemorrhage (SAH) in developing countries. This research presents incidence and mortality rates of stroke patients based on hospital admission and discharge status in one of the Central Asian countries by analysis of large-scale healthcare data. The registry data of 177,947 patients admitted to the hospital with the diagnosis of stroke between 2014 and 2019 were extracted from the National Electronic Health System of Kazakhstan. We provide descriptive statistics and analyze the association of socio-demographic and medical characteristics such as comorbidities and surgical treatments. Among all stroke patients, the incidence rate based on hospital admission of AIS was significantly higher compared to SAH and ICH patients. In 5 year follow-up period, AIS patients had a better outcome than SAH and ICH patients (64.7, 63.1 and 57.3% respectively). The hazard ratio (HR) after the trepanation and decompression surgery was 2.3 and 1.48 for AIS and SAH patients; however, it was protective for ICH (HR = 0.87). The investigation evaluated an increase in the all-cause mortality rates based on the discharge status of stroke patients, while the incidence rate decreased over time.

History of Endometriosis Is Independently Associated with an Increased Risk of Ovarian Cancer.

Background: Endometriosis is a complex gynecologic disorder that has been associated with a higher risk of ovarian cancer. The purpose of this work is to determine to what extent a history of endometriosis is a risk factor for ovarian cancer in a Spanish population. Methods: A retrospective case-control study was conducted using de-identified data from the Spanish National Health System's "Primary Care Clinical Database" and "Hospital Minimum Basic Data Set" for the period 2013-2017. Multiple logistics regression analysis was conducted to determine associations between ovarian cancer and endometriosis controlled by sociodemographic characteristics and comorbidities. Results: Data from 608,980 women were analyzed, with 4505 presenting ovarian cancer. Endometriosis patients were shown to have a 2.66-fold increased risk of ovarian cancer when compared to those who did not have endometriosis by controlling age and other relevant comorbidities. Conclusions: This case-control study based on clinical administrative data has found that a history of endometriosis is independently associated with an increased risk of ovarian cancer. More research is needed to determine if a history of endometriosis affects survival results in ovarian cancer patients.

Detection of the Frail Elderly at Risk of Postoperative Sepsis.

With the increase in the elderly population, surgery in aged patients is seeing an exponential increase. In this population, sepsis is a major concern for perioperative care, especially in older and frail patients. We aim to investigate the incidence of sepsis in elderly patients receiving diverse types of surgical procedures and explore the predictive capacity of the Hospital Frailty Risk Score (HFRS) to identify patients at high risk of incidence of postoperative sepsis. This study relies on information from the Spanish Minimum Basic Data Set, including data from nearly 300 hospitals in Spain. We extracted records of 254,836 patients aged 76 years and older who underwent a series of surgical interventions within three consecutive years (2016-2018). The HFRS and Elixhauser comorbidity index were computed to determine the independent effect on the incidence of sepsis. Overall, the incidence of postoperative sepsis was 2645 (1.04%). The higher risk of sepsis was in major stomach, esophageal, and duodenal (7.62%), followed by major intestinal procedures (5.65%). Frail patients are at high risk of sepsis. HFRS demonstrated a high predictive capacity to identify patients with a risk of postoperative sepsis and can be a valid instrument for risk stratification and vigilant perioperative monitoring for the early identification of patients at high risk of sepsis.

Mortality predictors of hospitalized patients with COVID-19: Retrospective cohort study from Nur-Sultan, Kazakhstan.

BACKGROUND: First reported case of Severe acute respiratory syndrome-related coronavirus 2 (SARS-CoV-2) in Kazakhstan was identified in March 2020. Many specialized tertiary hospitals in Kazakhstan including National Research Cardiac Surgery Center (NRCSC) were re-organized to accept coronavirus disease 2019 (COVID-19) infected patients during summer months of 2020. Although many studies from worldwide reported their experience in treating patients with COVID-19, there are limited data available from the Central Asia countries. The aim of this study is to identify predictors of mortality associated with COVID-19 in NRCSC tertiary hospital in Nur-Sultan, Kazakhstan. METHODS: This is a retrospective cohort study of patients admitted to the NRCSC between June 1st-August 31st 2020 with COVID-19. Demographic, clinical and laboratory data were collected from electronic records. In-hospital mortality was assessed as an outcome. Patients were followed-up until in-hospital death or discharge from the hospital. Descriptive statistics and factors associated with mortality were assessed using univariate and multivariate logistic regression models. RESULTS: Two hundred thirty-nine admissions were recorded during the follow-up period. Mean age was 57 years and 61% were males. Median duration of stay at the hospital was 8 days and 34 (14%) patients died during the hospitalization. Non-survivors were more likely to be admitted later from the disease onset, with higher fever, lower oxygen saturation and increased respiratory rate compared to survivors. Leukocytosis, lymphopenia, anemia, elevated liver and kidney function tests, hypoproteinemia, elevated inflammatory markers (C-reactive protein (CRP), ferritin, and lactate dehydrogenase (LDH)) and coagulation tests (fibrinogen, D-dimer, international normalized ratio (INR), and activated partial thromboplastin time (aPTT)) at admission were associated with mortality. Age (OR 1.2, CI:1.01-1.43), respiratory rate (OR 1.38, CI: 1.07-1.77), and CRP (OR 1.39, CI: 1.04-1.87) were determined to be independent predictors of mortality. CONCLUSION: This study describes 14% mortality rate from COVID-19 in the tertiary hospital. Many abnormal clinical and laboratory variables at admission were associated with poor outcome. Age, respiratory rate and CRP were found to be independent predictors of mortality. Our finding would help healthcare providers to predict the risk factors associated with high risk of mortality. Further investigations involving large cohorts should be provided to support our findings.

Erector spinae plane block in acute interventional pain management: a systematic review.

Erector Spinae Plane Block (ESPB) was described by Forero in 2016. ESPB is currently widely used in acute postoperative pain management. The benefits of ESPB include simplicity and efficacy in various surgeries. The aim of this review was to conduct a comprehensive overview of available evidence on erector spinae plane block in clinical practice. We included randomized controlled trials and systematic reviews reporting the ESPB in human subjects. The review was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Twenty-one articles including five systematic reviews and 16 randomized controlled trials were included and analyzed. ESPB appears to be an effective, safe, and simple method for acute pain management in cardiac, thoracic, and abdominal surgery. The incidence of side effects has been reported to be rare. A critical issue is to make sure that new evidence is not just of the highest quality, in form of well powered and designed randomized controlled trials but also including a standardized and homogeneous set of indicators that permit to assess the comparative effectiveness of the application of ESPB in acute interventional pain management.

Erector spinae plane block in chronic pain management: a scoping review.

Chronic pain is reaching epidemic levels. Chronic pain represents a significant burden for patients, healthcare systems, and society, given its impact on quality of life, increased disability, and risk of hospitalization and mortality. Unmet needs of chronic pain management are also significant as only a small percentage of patients respond to medical (drug) therapy. Erector spinae plane block (ESPB) was rapidly adapted in clinical practice and numerous cases have been published assessing its effectiveness, but no systematic review of evidence on ESPB in chronic pain management is available. The purpose of this scoping review is to perform a comprehensive overview of existing evidence on ESPB in chronic pain management. We analyzed cases and case series reporting 43 patients. ESPB was performed in patients with severe pain and in all cases resulted in some degree of pain relief. However, because there was heterogeneity in mechanisms and underlying causes of chronic pain, preprocedural analgesic therapy, and pain assessment in reporting the cases, with the information currently available (case reports) we cannot make a definitive conclusion regarding efficacy and safety of ESPB in chronic pain management. Lack of homogeneity was present in medication use before the procedure, indicating a significant variation in how patients with chronic pain are managed. Variation in clinical practice can indicate the need to improve the quality of care to alleviate the chronic pain burden. Randomized controlled clinical trials are warranted to establish efficacy and safety of ESPB in chronic pain management.

A primary healthcare information intervention for communicating cardiovascular risk to patients with poorly controlled hypertension: The Education and Coronary Risk Evaluation (Educore) study-A pragmatic, cluster-randomized trial.

PURPOSE: Uncertainty exists regarding the best way to communicate cardiovascular risk (CVR) to patients, and it is unclear whether the comprehension and perception of CVR varies according to the format used. The aim of the present work was to determine whether a strategy designed for communicating CVR information to patients with poorly controlled high blood pressure (HBP), but with no background of cardiovascular disease, was more effective than usual care in the control of blood pressure (BP) over the course of a year. METHODS: A pragmatic, two-arm, cluster-randomized controlled trial was performed. Consecutive patients aged 40-65 years, all diagnosed with HBP in the last 12 months, and all of whom showed poor control of their condition (systolic BP ≥140 mmHg and/or diastolic BP ≥90 mmHg), were recruited at 22 primary healthcare centres. Eleven centres were randomly assigned to the usual care arm, and 11 to the informative intervention arm (Educore arm). At the start of the study, the Educore arm subjects were shown the "low risk SCORE table", along with impacting images and information pamphlets encouraging the maintenance of good cardiovascular health. The main outcome variable measured was the control of HBP; the secondary outcome variables were SCORE table score, total plasma cholesterol concentration, use of tobacco, adherence to prescribed treatment, and quality of life. RESULTS: The study participants were 411 patients (185 in the Educore arm and 226 in the usual care arm). Multilevel logistic regression showed that, at 12 months, the Educore intervention achieved better control of HBP (OR = 1.57; 1.02 to 2.41). No statistically significant differences were seen between the two arms at 12 months with respect to the secondary outcomes. CONCLUSIONS: Compared to usual care, the Educore intervention was associated with better control of HBP after adjusting for age, baseline SBP and plasma cholesterol, at 12 months.

Evaluation of the effect of hospitalization on mortality in patients with heart failure followed in primary care / Evaluación del efecto de las hospitalizaciones sobre mortalidad en pacientes con Insuficiencia cardíaca seguidos en atención primaria

Abstract Background: Heart failure (HF) is a serious health-care problem. The aim of this study is to evaluate the effect of the first acute episode of decompensated HF that requires a hospitalization on the survival of newly diagnosed cases of HF with follow-up for 5 years in primary care (PC). Methods: This was a longitudinal observational study of a retrospective cohort of patients with information extracted from electronic medical records of PC. Incident cases of HF from 2006 to 2010 or until death were studied through a survival analysis with Kaplan–Meier and Cox proportional hazards multivariate regression, after applying the propensity score matching technique (PSM). Results: A total of 3061 new cases of HF were identified. The PSM analysis was performed with 529 couples, with a total of 1058 patients. 5-year survival was 65% in no hospitalized and 53% in hospitalized patients. Factors with an increased risk of mortality were having prescribed nitrates (heart rate [HR] = 1.56; 1.08-2.24). Factors with protective effect were having received the annual influenza vaccine (HR = 0.04; 0.01-0.15) and having been indicated X-rays by PC physician (HR = 0.76; 0.67-0.88). Conclusions: The findings indicate that hospitalizations are associated with a significant increase in mortality in patients recently diagnosed with HF. It is important to reinforce the need for the prevention of acute decompensated HF and for strategies to improve post-discharge outcomes.

Resumen Antecedentes: La insuficiencia cardiaca (IC) es un serio problema de asistencia médica. El objetivo de este estudio es evaluar el efecto del primer episodio de IC aguda descompensada que requiere una hospitalización en la supervivencia de los casos de IC recientemente diagnosticados con un seguimiento de 5 años en Atención Primaria (AP). Métodos: Estudio observacional longitudinal de una cohorte retrospectiva de pacientes con información extraída de la historia clínica electrónica de AP. Se estudiaron los casos incidentes de IC desde 2006 a 2010 o hasta su fallecimiento con un análisis de supervivencia de Kaplan-Meier y un modelo de regresión de Cox, después de aplicar la técnica del Propensity Score Matching (PSM). Resultados: Se identificaron 3.061 casos nuevos de IC. El análisis PSM se realizó con 529 pareja, con un total de 1.058 pacientes. La supervivencia a los cinco años fue del 65% en pacientes no hospitalizados y del 53% en pacientes hospitalizados. Los factores con mayor riesgo de mortalidad fueron tener prescritos nitratos (HR = 1,56; 1,08-2,24). Los factores con efecto protector fueron haber recibido la vacuna anual de la gripe (HR = 0,04; 0,01-0,15) y haber sido indicadas radiografías por el médico de AP (HR = 0,76; 0,67-0,88). Conclusiones: Los hallazgos indican que las hospitalizaciones se asocian con un aumento significativo de la mortalidad en pacientes diagnosticados recientemente con IC. Es importante reforzar la necesidad de prevenir la IC descompensada aguda y las estrategias para mejorar los resultados posteriores al alta.

Relationship between volume and in-hospital mortality in digestive oncological surgery.

INTRODUCTION: The results previously obtained in Spain in the study of the relationship between surgical caseload and in-hospital mortality are inconclusive. The aim of this study is to evaluate the volume-outcome association in Spain in the setting of digestive oncological surgery. METHODS: An analytical, cross-sectional study was conducted with data from patients who underwent surgical procedures with curative intent of esophageal, gastric, colorectal and pancreatic neoplasms between 2006-2009 with data from the Spanish MBDS. In-hospital mortality was used as outcome variable. Control variables were patient, health care and hospital characteristics. Exposure variable was the number of interventions for each disease, dividing the hospitals in 3 categories: high volume (HV), mid volume (MV) and low volume (LV) according to the number of procedures. RESULTS: An inverse, statistically significant relationship between procedure volume and in-hospital mortality was observed for both volume categories in both gastric (LV: OR=1,50 [IC 95%: 1,28-1,76]; MV: OR=1,49 (IC 95%: 1,28-1,74)) and colorectal (LV: OR=1,44 [IC 95%: 1,33-1,55]; MV: OR=1,24 [IC 95%: 1,15-1,33]) cancer surgery. In pancreatic procedures, this difference was only statistically significant between LV and HV categories (LV: OR=1,89 [IC 95%: 1,29-2,75]; MV: OR=1,21 [IC 95%: 0,82-1,79]). Esophageal surgery also showed an inverse relationship, which was not statistically significant (LV: OR=1,89 [IC 95%: 0,98-3,64]; MV: OR=1,05 [IC 95%: 0,50-2,21]). CONCLUSIONS: The results of this study suggest the existence in Spain of an inverse relationship between caseload and in-hospital mortality in digestive oncological surgery for the procedures analyzed.

Economic evaluation of Chagas disease screening in Spain.

Although Spain is the European country with the highest Chagas disease burden, the country does not have a national control program of the disease. The purpose of this study is to evaluate the efficiency of several strategies for Chagas disease screening among Latin American residents living in Spain. The following screening strategies were evaluated: (1) non-screening; (2) screening of the Latin American pregnant women and their newborns; (3) screening also the relatives of the positive pregnant women; (4) screening also the relatives of the negative pregnant women. A cost-utility analysis was carried out to compare the four strategies from two perspectives, the societal and the Spanish National Health System (SNHS). A decision tree representing the clinical evolution of Chagas disease throughout patient's life was built. The strategies were compared through the incremental cost-utility ratio, using euros as cost measurement and quality-adjusted life years as utility measurement. A sensitivity analysis was performed to test the model parameters and their influence on the results. We found the "Non-screening" as the most expensive and less effective of the evaluated strategies, from both the societal and the SNHS perspectives. Among the screening evaluated strategies the most efficient was, from both perspectives, to extent the antenatal screening of the Latin American pregnant women and their newborns up to the relatives of the positive women. Several parameters influenced significantly on the sensitivity analyses, particularly the chronic treatment efficacy or the prevalence of Chagas disease. In conclusion, for the general Latin American immigrants living in Spain the most efficient would be to screen the Latin American mothers, their newborns and the close relatives of the mothers with a positive serology. However for higher prevalence immigrant population the most efficient intervention would be to extend the program to the close relatives of the negative mothers.

[Clinical care characteristics and factors associated with in-hospital mortality for lung cancer in Spain]. / Características clinicoasistenciales y factores asociados a la mortalidad intrahospitalaria por cáncer de pulmón en España.

BACKGROUND AND OBJECTIVE: Lung cancer causes high morbimortality in Spain and is currently experiencing a significant increase in women. The aim of this study was to describe differential clinical and health care characteristics by sex, as well as factors associated with and geographic differences of in-hospital mortality. MATERIAL AND METHOD: Descriptive study of episodes registered in the National Hospital Discharge Minimum Basic Data Set for admission type and gender in 2005. Two logistic regression models by sex were built in order to explain the individual influence of variables on in-hospital mortality. Using predictive values of the models, standardized mortality rates were calculated to study the variation between Spanish regions. RESULTS: Women presented a lower mean age, smoking habit and in-hospital mortality than men. However, women presented more adenocarcinomas, greater care in high volume centers, more surgery in readmissions and were subjected to chemotherapy more often in new admissions than men. Adenocarcinoma in men and no specific location in women were associated with higher mortality. Smoking habit and lung diagnosis procedures in men, and middle lobe location and bronchoscopy in women were associated with lower mortality. The geographical mortality pattern detected was similar in both sexes only in some regions of Spain. CONCLUSIONS: Differential clinical characteristics, health care and overall results appear to exist depending on individuals' gender. Recognition of these differences are crucial in order to improve the effectiveness and equity of our health care system.

[Hospital management of pancreatic cancer in Spain and assessment of factors associated with in-hospital mortality]. / Manejo hospitalario del cáncer de páncreas en España y estudio de los factores asociados a la mortalidad intrahospitalaria.

BACKGROUND: Pancreatic cancer is becoming an increasingly important health problem in Spain. This study aimed to analyze the hospital management of this process and the factors associated with mortality by using an administrative data base. MATERIAL AND METHOD: We performed a descriptive study. Socio-demographic, clinical, diagnostic, and therapeutic variables of episodes registered in the national Hospital Discharge Minimum Data Set for 2004 were gathered. Comorbidity was assessed with the Charlson index. A logistic regression model was built to explain the individual influence of variables on in-hospital mortality. Mortality in the 17 autonomous regions of Spain was analyzed by using standardized mortality rates, through predicted mortality obtained from the multivariate model. RESULTS: The mean age was 68 years and men represented 56%. Readmissions accounted for 80% of the cases. The most frequent localization was in the pancreatic head and the most frequently employed procedures were computed tomography and surgery. In-hospital mortality was 25%, was higher in men, and increased with age. Mortality was higher in new admissions than in readmissions. Factors associated with higher mortality in the multivariate analysis were male sex, age, unspecified location or location in the tail, emergency admission, hospital stay, and comorbidity. Observed mortality was higher than expected in the Canary Islands and Madrid and was lower than expected in Catalonia and the Valencian Community. DISCUSSION: Future studies with more detailed information should be performed to allow the factors associated with in-hospital mortality from pancreatic cancer to be confirmed and to clarify the reasons for the geographical differences identified.

[Factors associated with acute myocardial infarction in-hospital mortality. Results of an observational study]. / Factores asociados a la mortalidad intrahospitalaria del infarto de miocardio. Resultados de un estudio observacional.

BACKGROUND AND OBJECTIVE: Myocardial infarction is one of the leading causes of death in Spain. This study assesses in-hospital mortality and associated factors. PATIENTS AND METHOD: Mortality of episodes of initial attention of myocardial infarction attended in hospitals was analyzed using the 2001 Minimum Basic Group of Data corresponding to the Community of Madrid in relation with sociodemographic, hospitals, procedures, risk factors and comorbidities. Statistical descriptive techniques and logistic regression analyses were employed to analyze the data. RESULTS: 5,306 cases of myocardial infarction were studied. 71% were men and the mean age was 68 year. 73% were admitted in high technology hospitals, 49% received coronary angiography and 29% received a stent. Mortality rate was 10.8%. Multivariable analysis showed that increase in age, presence of arrhythmias, congestive heart failure, renal failure, cardiogenic shock and cerebrovascular disease were associated with in-hospital mortality, while admission in centers attending between 100 and 300 myocardial infarction cases, use of coronary angiography and stent, and previous history of arterial hypertension, smoking and high lipid levels, appeared to be protective factors. CONCLUSIONS: Mortality estimated with an administrative data-base is similar than the mortality estimated in studies based on clinical data sets. Mortality is associated with several variables; although some of them have been previously reported, others need further investigations to confirm their relevance.