Comparison of subclinical left and right ventricular systolic dysfunction in non-dipper and dipper hypertensives: impact of isovolumic acceleration

Objectives: To evaluate subclinical left ventricular and right ventricular systolic impairment in dipper and non-dipper hypertensives by using isovolumic acceleration.

Methods: About 45 normotensive healthy volunteers (20 men, mean age 43?±?9 years), 45 dipper (27 men, mean age 45?±?9 years) and 45 non-dipper (25 men, 47?±?7 years) hypertensives were enrolled. Isovolumic acceleration was measured by dividing the peak myocardial isovolumic contraction velocity by isovolumic acceleration time.

Results: Non-dippers indicated lower left ventricular (2.2?±?0.4?m/s² versus 2.8?±?1.0?m/s², p?2 versus 3.5?±?1.0?m/s², p?=?0.012) compared with dippers. Left ventricular mass index (p?=?0.001), interventricular septal thickness (p?=?0.002) and myocardial performance index (p?p?=?0.002), mass index (p?=?0.001) and right ventricular myocardial performance index (p?Conclusion: The present study demonstrates that non-dipper hypertensives have increased left and right ventricular subclinical systolic dysfunction compared with dippers. Isovolumic acceleration is the only echocardiographic parameter in predicting this subtle impairment.     

Visual Attention and Key Word Sign in Children with Autism Spectrum Disorder

The aim of this study was to examine the relationship between children’s visual attention to, and acquisition of, Key Word Sign (KWS). Our hypothesis was that children’s visual attention to the clinician’s modelling would be associated with their acquisition and production of KWS. A multiple baseline single case experimental design with additional exploratory analyses was used to examine the effect of visual attention on sign acquisition among three preschool children with ASD. This paper extends from the previous intervention study (see Tan et al. 2014) by examining visual attention as a potential factor underpinning individual differences in sign acquisition documented in the initial study. All three children visually attended to the clinician’s modelling of KWS, and acquired signs to varying degrees following the introduction of KWS intervention. A weak, non-significant correlation was found between the children’s amount of visual attention and their production of signs. The results provide preliminary evidence for a lack of association between children’s amount of ‘looking’ and ‘doing’ during KWS intervention. Replication and examination of other factors impacting on KWS intervention outcomes is required.     

Ex Vivo Expansion or Manipulation of Stem Cells to Improve Outcome of Umbilical Cord Blood Transplantation

The outcome of umbilical cord blood transplantation for adult patients with hematologic malignancies now rivals that of matched unrelated donor transplantation. However, delayed hematopoietic and immunologic recovery remains a source of significant morbidity and mortality. Multiple strategies are now being studied to overcome these limitations. One strategy involves ex vivo expansion of the umbilical cord blood unit prior to transplantation. A second strategy involves exposure of the umbilical cord blood graft to compounds aimed at improving homing and engraftment following transplantation. Such a strategy may also address the problem of slow hematopoietic recovery as well as the increased risk of graft failure. Many of these strategies are now being tested in late phase multi-center clinical trials. If proven cost-effective and efficacious, they may alter the landscape of donor options for allogeneic stem cell transplantation.     

Targeting Lifestyle Behavior Change in Adults with NAFLD During a 20-min Consultation: Summary of the Dietary and Exercise Literature

Non-alcoholic fatty liver disease (NAFLD) is largely linked to poor diet, lack of physical activity/exercise, and being overweight. In the absence of approved pharmaceutical agents, lifestyle modification, encompassing dietary change and increased physical activity/exercise to initiate weight loss, is the recommended therapy for NAFLD. Despite this, the use of lifestyle therapy within clinical settings is lacking with limited guidance available about what it should involve, how it should be delivered, and whether it can be feasibly delivered as part of standard care. This paper highlights the evidence for the use of lifestyle modification in NAFLD. While there is evidence to support use of behavioral strategies to support lifestyle behavior change in other clinical populations, these are yet to be assessed in people with NAFLD. However, there is sufficient evidence to suggest that behavioral intervention targeting diet and physical activity to promote weight loss in general is effective and a number of practical strategies are presented on how this could be achieved.     

Even a “pigtail” distal end catheter can enter the epidural space after continuous paravertebral block

A woman with a medical history of breast cancer presented with chronic pain of the right hemithorax. To alleviate pain, a continuous paravertebral block was performed using a pigtail end catheter, introduced using ultrasound visualization (transversal technique at the inferior articular process of T6). Complete pain relief was observed. A few hours later, urinary retention was diagnosed and discharge from the ambulatory setting was canceled. On the following day, a new injection of local anesthetics through the catheter triggered paresthesia in the contralateral leg and a new urinary retention was diagnosed. A CT scan confirmed the epidural misplacement of the catheter. The latter was withdrawn, and the patient was released to home after the complete disappearance of her neurological symptoms. This case report highlights the risk of inadvertently misplacing the catheter into the epidural space during thoracic paravertebral block, even with a “pigtail” distal end type of catheter.     

Single-site port robotic-assisted hysterectomy: an update

Single-incision approach in robotic gynecology is a relatively new concept. The role of single-port systems in robotic hysterectomy, their advantages and disadvantages, as well as the technical challenges, are still under investigation. A systematic review was performed by searching in PubMed and Scopus databases. In 810 out of 1225 patients, hysterectomy was performed for non-neoplastic disease. Single-Site^® was the most common port system. Duration of the procedure and relative blood loss ranged from 60 to 311 min and 7 to 750 ml, respectively. The weight of the removed uteri ranged from 39 to 520 g. 4.9% of the included patients presented complications, among which bleeding, vaginal haematoma, laceration and dehiscence, umbilical hernia, and visceral injuries. Conversion rate to laparotomy reached 2.8%. Although some technical difficulties are still described in the literature, the single-port approach is becoming more standardized nowadays and performed by more surgeons. The initial phase of the learning curve can be achieved after five cases, while a proficiency in intracorporeal cuff suturing after 14 cases. Uterus weight and previous abdominal surgical history can still be limitations of the technique. Compared to our previous study, we can see that the technique has been used in more elderly or obese patients. The complication rate can reach 4.9% while the conversion rate can reach 2.8%. However, we consider that complication and conversion rates as well as surgical time could be improved with experience. Regarding post-operative pain and cosmetic outcomes, the lack of information do not allow us to draw any safe conclusions.