The experience of caregivers of hematological cancer patients undergoing a hematopoietic stem cell transplant: a comprehensive literature review

Objective: Hematopoietic stem cell transplant (HSCT) is a demanding procedure with associated physical and psychological sequelae that affects patients and their families. Caregivers to HSCT patients not only have to cope with the life‐threatening nature of the disease and treatment, but they also have care‐giving responsibilities. This study reviews the literature on the psychosocial impact of being a caregiver to a HSCT patient. Methods: A critical review of the literature published before June 2010 was conducted. Databases searched included CINAHL, Medline, PsycInfo, and Academic Search Complete, as well as a comprehensive reference review. Studies that pertained to caregivers of children (under the age of 18) undergoing a HSCT or caregivers to patients with non‐hematological malignancies were excluded. Sixteen quantitative research articles and three qualitative research articles were reviewed and analyzed. Results: Caregiver distress is highest pre‐transplant and decreases over time, and caregivers display distress levels comparable to or higher than patients' reported distress levels. Predictors of caregiver distress include female gender, elevated subjective burden, and higher patient symptom distress. Caregivers reported uncertainty, fear of the future, juggling patients' needs with their own, and difficulties adapting to role changes; however, they also reported positive aspects to care giving, such as personal growth and developing a more positive relationship with the patient. Conclusions: There are many limitations to the current research and future directions should include both members of the dyad to evaluate the reciprocal relation between caregiver and patient variables, as well as theory‐driven research and research with direct clinical applications. Copyright © 2011 John Wiley & Sons, Ltd.     

M��MoPratic�� VDHA: guide de prescription pour les voies digestives hautes alt��r��es

Oral administration is often difficult for tablets or capsules when patients have nausea, vomiting, dysphagia, deglutition disorder??Howewer, specifics dosages forms are avaible. This multidisciplinary approach has allowed to build a free practical guide for optimizing medical management for upper affected gastrointestinal system. We screened Vidal Hoptimal 2010 database to collect drugs with dosages forms adapted and build a booklet and an iPhone app for best supportive care in ambulatory care. Drugs are classified by pharmaceutical, dosage form, INN, trade mark.     

Exercise behavior in cancer survivors and associated factors

Introduction  

Physical activity is an important component in promoting a healthy life style in cancer survivors. We estimated the proportion of cancer survivors who are physically active, defined as meeting public health exercise guidelines, and changes in level of physical activity (LPA) from before diagnosis to after treatment. We also identified medical and demographic factors associated with LPA and its changes.     

Cardiac magnetic resonance in transfusion dependent thalassaemia: assessment of iron load and relationship to left ventricular ejection fraction

Cardiac Magnetic Resonance (CMR) has replaced all other surrogate measurements in the determination of transfusional cardiac iron overload in patients with thalassaemia major. We aimed to determine the diagnostic value of CMR T2* with respect to cardiac dysfunction (CD) as determined by CMR‐derived left ventricular ejection fraction (LVEF). Cardiac T2* values and LVEF measured by CMR were recorded in 303 patients with thalassaemia major, at the time of their first CMR. T2* was correlated with LVEF (regression coefficient: 0·57, P < 0·001). The prevalence of CD was 32·9% in patients with T2* ≤ 8 ms, 12·5% in patients with T2* > 8 ms and ≤14 ms and reduced to 9·1% in patients with T2* between 14–20 ms. As the probability of CD is progressively, and not suddenly, reduced with increasing values of T2*, CMR has a limited diagnostic value for CD (Receiver operating characteristic analysis, area under the curve = 0·68). Patients with cardiac T2* ≤ 8 ms require careful and intensive management. This risk decreases with increasing values of T2* but even in mildly loaded patients the probability of impaired LVEF is not negligible.     

Proteomic and metabolomic analysis of atrial profibrillatory remodelling in congestive heart failure

Congestive heart failure (CHF) leads to atrial structural remodelling and increased susceptibility to atrial fibrillation. The underlying molecular mechanisms are poorly understood. We applied high-throughput proteomic and metabolomic analysis to left-atrial cardiomyocytes and tissues obtained from sham and ventricular-tachypaced (VTP, 240 bpm × 24 h and × 2 weeks) CHF dogs. Protein-extracts were subjected to two-dimensional gel electrophoresis using differential in-gel electrophoresis technology. Differentially expressed (P < 0.05) proteins were identified by tandem mass-spectrometry. Cardiac metabolites were assayed with high-resolution NMR spectroscopy. Extensive changes occurred in structural proteins, particularly at 2-week VTP, with desmin and filamin fragmentation suggesting structural damage, which was confirmed by electron-microscopy. Oxidant stress was evidenced by decreased antioxidant proteins (superoxide dismutase and peroxiredoxin) at 2-week VTP. Extensive changes in cardioprotective heat shock proteins (HSPs) occurred, with several proteins increasing rapidly (HSP27, HSP60 and HSP70) and others showing a delayed rise (GRP78, α-B-crystallin, and HSP90). An evolving adaptive response to metabolic stress was suggested by early upregulation of malate dehydrogenase (DH), α-/β-enolase and pyruvate dehydrogenase (α-subunit of E1 component) and delayed downregulation of a host of enzymes, along with extensive metabolomic changes. Early changes in metabolite expression that persisted as CHF developed included increased concentrations of glucose and alanine. ADP/ATP accumulation and alpha-ketoisovalerate depletion at 2-week VTP suggested a combination of metabolic stress and less effective energy utilization, as well as a shift from glycolysis to alpha-ketoacid metabolism. We conclude that VTP-induced CHF causes time-dependent changes in the atrial proteome and metabolome, providing insights into molecular mechanisms contributing to arrhythmogenic atrial remodelling.