Tunable Blood Shunt for Neonates With Complex Congenital Heart Defects

Despite advancements in procedures and patient care, mortality rates for neonatal recipients of the Norwood procedure, a palliation for single ventricle congenital malformations, remain high due to the use of a fixed-diameter blood shunt. In this study, a new geometrically tunable blood shunt was investigated to address limitations of the current treatment paradigm (e.g., Modified Blalock-Taussig Shunt) by allowing for controlled modulation of blood flow through the shunt to accommodate physiological changes due to the patient’s growth. First, mathematical and computational cardiovascular models were established to investigate the hemodynamic requirements of growing neonatal patients with shunts and to inform design criteria for shunt diameter changes. Then, two stages of prototyping were performed to design, build and test responsive hydrogel systems that facilitate tuning of the shunt diameter by adjusting the hydrogel’s degree of crosslinking. We examined two mechanisms to drive crosslinking: infusion of chemical crosslinking agents and near-UV photoinitiation. The growth model showed that 15–18% increases in shunt diameter were required to accommodate growing patients’ increasing blood flow; similarly, the computational models demonstrated that blood flow magnitudes were in agreement with previous reports. These target levels of diameter increases were achieved experimentally with model hydrogel systems. We also verified that the photocrosslinkable hydrogel, composed of methacrylated dextran, was contact-nonhemolytic. These results demonstrate proof-of-concept feasibility and reflect the first steps in the development of this novel blood shunt. A tunable shunt design offers a new methodology to rebalance blood flow in this vulnerable patient population during growth and development.

GENDER AND REGIONAL DISPARITIES IN EMERGENCY ARRHYTHMIA PROCEDURES DURING COVID-19 LOCKDOWN

Objectives: Worldwide reduction in emergency procedures has been observed during the current COVID-19 pandemic. The effects of the pandemic and its associated lockdown on arrhythmia related emergency procedures is not known. This study was done to see the effects of the COVID-19 pandemic lockdown on provision of emergency arrhythmia procedures and to identify vulnerable patient groups that may be disproportionately affected during lockdown. Methodology: Data for patients requiring emergency intracardiac devices including temporary and permanent pacemakers was collected from three public sector hospitals of Sindh, Pakistan, for the COVID-19 lockdown period of March to May 2020. This was compared to the data for the same period for 2019. Results: Patients presenting during lockdown decreased by 32.8% (from 250 to 168) compared to the same period without lockdown. The decline was across all emergency procedures considered. There was a more than fivefold reduction in the number of patients in patients from outside the metropolitan area of the hospital (64.3%) compared to those residing within the city (12.5%) (p=0.001). There was a trend showing women to be more effected, with the percentage decline in women being statistically significant in the rural setting (-93.8% vs. -52.9%, p=0.043). All age groups were equally affected (p=0.152). Conclusion: A marked reduction in the number of patients who presented for emergency intra cardiac devices and TPM procedures was seen during COVID-19 lockdown. The patients who presented from outside the city of the hospital and women in rural setting were significantly more effected.

Exploratory attitude survey of homeless persons regarding telecare services in shelters providing mid- and long-term accommodation: The importance of trust

Background With the expansion of digital health, it is imperative to consider intervention techniques in order not to be the cause of even more social health inequalities in underserved populations struggling with chronic diseases. Telemedicine solutions for homeless persons might compensate for shortcomings in access to valuable health services in different settings. The main aim of our research was to examine the attitudes and openness of homeless persons regarding telecare on a Hungarian sample. Methods Quantitative survey among homeless people (n = 98) was completed in 4 shelters providing mid- and long-term accommodation in Budapest, Hungary. Attitudes regarding healthcare service accessibility and telecare were measured by a self-developed questionnaire of the research team. Telecare attitude comparison was made with data of a Hungarian weighted reference group of non-homeless persons recruited from 2 primary care units (n = 110). Results A significant fraction of homeless people with mid- or long-term residency in homeless shelters did not oppose the use of telecare via live online video consultation and there was no difference compared to the national reference group (averages of 3.09 vs. 3.15, respectively). Results of the homeless group indicate that those more satisfied with healthcare services, in general, manifest more openness to telecare. It is clearly demonstrated by the multivariate analysis that those participants in the homeless group who had problems getting health care in the last year definitely preferred in-person doctor-patient consultations. Conclusion Digital health technologies offer a potentially important new pathway for the prevention and treatment of chronic conditions among homeless persons. Based on the attitudes towards telecare, initiating an on-site telecare program for mid- and long-term residents of homeless shelters might enable better care continuity. Our results draw attention to the key factors including building trust in the implementation of such programs among underserved and other vulnerable patient groups.

Gamma Knife Radiosurgery in the Management of Hypothalamic Glioma: A Case Report with Long-term Follow-up

Background Optic pathway/hypothalamic gliomas are rare pediatric brain tumors. The management paradigm for these challenging tumors includes chemotherapy, radiotherapy, or surgical resection, but the optimal management strategy remains elusive. Gamma Knife radiosurgery (GKRS) has emerged as a promising treatment for such lesions as documented by a small number of cases in the literature. Case Presentation Herein, we present a rare case of hypothalamic glioma in a 13-year-old girl who was referred to our service due to growth of a an incidentally diagnosed hypothalamic lesion following head injury at the age of 8 years. The lesion demonstrated hypointensity on T1 and hyperintensity on T2 without enhancement. Given the growth of the lesion on serial imaging, a stereotactic biopsy was performed demonstrating low-grade glioma. The patient underwent GKRS treatment with a marginal dose of 15 Gy at 50% isodose line for a tumor volume of 2.2 ml. Annual radiological surveillance over the next 17 years demonstrated a gradual shrinkage of the lesion until it completely disappeared. The patient is currently a healthy 31-year-old female without any visual, endocrine, or neurocognitive complaints. Conclusion The outcome obtained after extended follow-up in our patient highlights the safety and efficacy of GKRS in the management of hypothalamic gliomas in pediatrics, which in turn can avoid potentially serious complications of surgery in this vulnerable patient population in this sensitive location.

A dry gangrene signing SARS-CoV2 infection in a vulnerable patient

Although lungs represent the main target of the SARS-CoV2, the novel virus may affect other tissues. In the pandemic context, unexplained cutaneous ischemic lesions would be suggestive of the infection and should draw attention to a serious course of the disease.

Prescription Practices of Medical Cannabinoids in Children with Cerebral Palsy - A Survey of the Swiss Cerebral Palsy Registry

Aim Medical cannabinoids are prescribed to children with cerebral palsy despite limited evidence. We aimed to assess the prescription practices of cannabinoids in children with cerebral palsy with a particular focus on indications and preparations used and how well cannabinoids are tolerated. Furthermore, we investigated how physicians acquire knowledge on cannabinoid medication. Methods We asked physicians with expertise in the care of children with CP on their prescription practices of medical cannabinoids. Data was collected through an online survey, which was distributed by email. In addition to the demographic information of participants, we also inquired about the indications for the prescription of cannabinoids, about experiences regarding efficacy and the observed side effects of the therapy. Results Seventy physicians from Europe, North America and Australia completed the survey. Forty-seven participants were experienced in the treatment of children with cerebral palsy by cannabinoids. The most common indication was epilepsy (69%), followed by spasticity (64%) and pain (63%). The prescribed preparations and doses varied considerably. Half of the participants evaluated the effect of the medical cannabinoids as moderate. Twenty-nine physicians reported side effects, most frequently in the form of drowsiness (26%), somnolence (19%), fatigue (13%), and diarrhoea (13%). Conclusions Despite the lack of evidence to date, medical cannabinoids are used to treat children with cerebral palsy in a wide variety of indications. Randomized controlled trials in this vulnerable patient group are therefore of utmost importance.

Immunization and vaccination

This chapter describes the history of vaccination, challenges to immunization programmes, the public health benefits of vaccination programmes, and the notable successes in terms of elimination. The broader social and economic effects of vaccination are discussed. For example, healthcare workers have increased risk for acquisition of vaccine-preventable diseases. It is important that healthcare workers can maintain delivery of healthcare services during epidemics. They should also avoid spreading disease to vulnerable patient groups. Appropriate vaccination for BCG, hepatitis B, polio, diphtheria, measles, rubella, meningococcal, influenza, varicella, and pertussis is recommended, especially if at increased risk of exposure. The Expanded Programme on Immunization recommended vaccines is fully covered. Vaccination of special populations and the future of vaccines is also discussed.

At-risk populations

This chapter focuses on those vulnerable patient groups who carry high perioperative risk and need special perioperative consideration, such as those with obesity, malnourished patients, older patients, and patients with learning disabilities and/or autism.

A smart tech lever to augment caregivers' touch and foster vulnerable patient engagement and well-being

PurposeSome population groups face precarious health, reflecting their vulnerability, in terms of lack of agency or control. Smart technologies promise to transform people's lives from the enhanced connectedness, greater computational processing and more complex decision-making they can achieve. This study aims to investigate how smart technology can mitigate vulnerability and improve well-being.Design/methodology/approachThe research group, of three scholars and three managers, pursued an action research methodology with an iterative process of planning, action and learning. The authors conducted three related action studies: (1) adopting smart technologies, (2) fostering patient engagement and (3) assessing well-being.FindingsThe adoption of sensors and wearable devices had positive impacts for both patients and caregivers. Technologies highlighted their meaning as resources to support actors' (caregivers' and vulnerable patients') activities. Smart devices as resources get integrated, stimulate change and enable new practices. For caregivers, such innovative solutions help improve their knowledge of patients and their ability to act efficiently; for vulnerable patients, they fostered engagement in daily activities to improve well-being.Originality/valueThe paper delineates an overall model (SEVP) that describes how the integration of high-tech and high touch enables patient engagement to mitigate vulnerability and improve well-being.