Favorable Outcomes of LVAD as Bridge to Simultaneous Heart-Kidney Transplantation

Background Chronic kidney disease (CKD) is an established risk factor for incident cardiovascular disease and progression of heart failure disease state, and is associated with decreased survival after left ventricular assist device (LVAD) therapy or heart transplantation (HT). Combined heart-kidney transplantation (HKT) compared with isolated HT recently has been shown to have survival advantage among patients whose estimated glomerular filtration rate is less than 37 ml/min/m2. Data on LVAD to HKT are limited. Methods At our center, a total of 803 patients have received HT, 594 patients LVAD therapy, and 23 patients HKT from single donors; of those 23, 15 were without the use of LVAD and 8 were after support with LVAD. Results Kaplan-Meier survival analysis found LVAD-supported patients with CKD stages 4 or 5 had statistically worse 24-month survival after HT as compared with those with CKD stage 1, 2, and 3 (58% vs 88%, p=0.01). Patients who received combined HKT after LVAD had comparable 24-month survival with those who received HKT without LVAD (87% and 85%, p=NS); both groups had numerically better survival compared with those who had CKD (stage 4-5) with isolated HT (58%). Conclusions Patients supported with LVAD who demonstrate advanced CKD (stage 4-5) have worse 24-month post-HT survival compared with those with less advanced CKD (stage 1-3). Combined HKT after LVAD support is feasible and confers comparable 24-month survival compared with HKT without prior LVAD therapy. Our study supports combined HKT for select LVAD patients with advanced CKD (stage 4-5)

NMR metabolomics of cerebrospinal fluid differentiates inflammatory diseases of the central nervous system

BACKGROUND: Myriad infectious and noninfectious causes of encephalomyelitis (EM) have similar clinical manifestations, presenting serious challenges to diagnosis and treatment. Metabolomics of cerebrospinal fluid (CSF) was explored as a method of differentiating among neurological diseases causing EM using a single CSF sample. METHODOLOGY/PRINCIPAL FINDINGS: 1H NMR metabolomics was applied to CSF samples from 27 patients with a laboratory-confirmed disease, including Lyme disease or West Nile Virus meningoencephalitis, multiple sclerosis, rabies, or Histoplasma meningitis, and 25 controls. Cluster analyses distinguished samples by infection status and moderately by pathogen, with shared and differentiating metabolite patterns observed among diseases. CART analysis predicted infection status with 100% sensitivity and 93% specificity. CONCLUSIONS/SIGNIFICANCE: These preliminary results suggest the potential utility of CSF metabolomics as a rapid screening test to enhance diagnostic accuracies and improve patient outcomes

Latex vascular injection as method for enhanced neurosurgical training and skills

BackgroundTridimensional medical knowledge of human anatomy is a key step in the undergraduate and postgraduate medical education, especially in surgical fields. Training simulation before real surgical procedures is necessary to develop clinical competences and to minimize surgical complications.MethodsLatex injection of vascular system in brain and in head-neck segment is made after washing out of the vascular system and fixation of the specimen before and after latex injection.ResultsUsing this latex injection technique, the vascular system of 90% of brains and 80% of head-neck segments are well-perfused. Latex-injected vessels maintain real appearance compared to silicone, and more flexible vessels compared to resins. Besides, latex makes possible a better perfusion of small vessels.ConclusionsLatex vascular injection technique of the brain and head-neck segment is a simulation model for neurosurgical training based on real experiencing to improve surgical skills and surgical results

Trade Union Priorities and Wage Rigidity

The starting point of the paper is that trade unions engage in substitution once certain targets have been met. This implies that a priority-based or hierarchical model might be a better approximation to union behaviour. This model requires a two-part union utility function which changes when a satisfactory (or target) level of the priority variable (e.g. the wage rate) is met. After demonstrating the workings of such a model in a monopoly union framework, it is shown that when the wage is below the target level, there is real wage rigidity. Employment increases only when the target wage has been achieve

Large expert-curated database for benchmarking document similarity detection in biomedical literature search

Document recommendation systems for locating relevant literature have mostly relied on methods developed a decade ago. This is largely due to the lack of a large offline gold-standard benchmark of relevant documents that cover a variety of research fields such that newly developed literature search techniques can be compared, improved and translated into practice. To overcome this bottleneck, we have established the RElevant LIterature SearcH consortium consisting of more than 1500 scientists from 84 countries, who have collectively annotated the relevance of over 180 000 PubMed-listed articles with regard to their respective seed (input) article/s. The majority of annotations were contributed by highly experienced, original authors of the seed articles. The collected data cover 76% of all unique PubMed Medical Subject Headings descriptors. No systematic biases were observed across different experience levels, research fields or time spent on annotations. More importantly, annotations of the same document pairs contributed by different scientists were highly concordant. We further show that the three representative baseline methods used to generate recommended articles for evaluation (Okapi Best Matching 25, Term Frequency-Inverse Document Frequency and PubMed Related Articles) had similar overall performances. Additionally, we found that these methods each tend to produce distinct collections of recommended articles, suggesting that a hybrid method may be required to completely capture all relevant articles. The established database server located at https://relishdb.ict.griffith.edu.au is freely available for the downloading of annotation data and the blind testing of new methods. We expect that this benchmark will be useful for stimulating the development of new powerful techniques for title and title/abstract-based search engines for relevant articles in biomedical research.Peer reviewe

Humanistic management and the counterproductive behaviours as perceived by the employees

The study aims to determine the effect of the humanistic management style of administrators on the counterproductive work behaviour of employees. To deepen the understanding of the concepts and to establish the theories of the study, literature was reviewed. The study used descriptive assessment and a correlational research design. The population of the study was all employees and administrators of Divine Word College of Laoag. Questionnaires were used to gather the data and weighted mean and Pearson r correlation was used to analyze the data. The study found that the humanistic management style of administrators is high and counterproductive behaviour is low. However, Pearson r correlation indicated that there is no significant correlation between humanistic management style and counterproductive behaviour of employees. Thus, the hypothesis is rejected

Long-term follow-up and pregnancy in a patient with neurenteric cyst: case report.

Neurenteric cysts (NC) are rare congenital anomalies. Cysts are secretory with an epithelial lining and features that resemble those of gastrointestinal and/or respiratory mucosa. They originate embryologically and result from an incomplete separation of the neurenteric canal from the foregut. We describe the 21-year follow-up of a female patient with a history of partial control of urinary and anal sphincters. The patient had a 6-month course of pain associated with saddle hypoesthesia, limited gait, chronic constipation, plus inferior paresthesia of the limbs. These features, along with the MRI findings, were compatible with the diagnosis of neurenteric cyst. The patient underwent two surgical procedures. We used a nonradical approach because of the connection of the cyst with the rectum and nerves in the deep plane. At age 22, she became pregnant and, after an uneventful gestation, gave birth to a healthy newborn. The selection of surgical strategy is oriented to mass effect resolution. In accordance with the literature, evaluation of the best choice for each patient is mandatory to obtain a balance of the risk and the potential functional preservation. This report demonstrates the importance of sensory and motor function preservation instead of using aggressive treatment. Our goal in each procedure was symptom alleviation, reduction of cyst size, clearance of the mass effect, and an attempt to resect the cyst capsule as much as possible without compromising quality of life and neurological functions

Long-term follow-up and pregnancy in a patient with neurenteric cyst: case report.

Neurenteric cysts (NC) are rare congenital anomalies. Cysts are secretory with an epithelial lining and features that resemble those of gastrointestinal and/or respiratory mucosa. They originate embryologically and result from an incomplete separation of the neurenteric canal from the foregut. We describe the 21-year follow-up of a female patient with a history of partial control of urinary and anal sphincters. The patient had a 6-month course of pain associated with saddle hypoesthesia, limited gait, chronic constipation, plus inferior paresthesia of the limbs. These features, along with the MRI findings, were compatible with the diagnosis of neurenteric cyst. The patient underwent two surgical procedures. We used a nonradical approach because of the connection of the cyst with the rectum and nerves in the deep plane. At age 22, she became pregnant and, after an uneventful gestation, gave birth to a healthy newborn. The selection of surgical strategy is oriented to mass effect resolution. In accordance with the literature, evaluation of the best choice for each patient is mandatory to obtain a balance of the risk and the potential functional preservation. This report demonstrates the importance of sensory and motor function preservation instead of using aggressive treatment. Our goal in each procedure was symptom alleviation, reduction of cyst size, clearance of the mass effect, and an attempt to resect the cyst capsule as much as possible without compromising quality of life and neurological functions