Supervisory Algorithm for Autonomous Hemodynamic Management Systems

Future military conflicts will require new solutions to manage combat casualties. The use of automated medical systems can potentially address this need by streamlining and augmenting the delivery of medical care in both emergency and combat trauma environments. However, in many situations, these systems may need to operate in conjunction with other autonomous and semi-autonomous devices. Management of complex patients may require multiple automated systems operating simultaneously and potentially competing with each other. Supervisory controllers capable of harmonizing multiple closed-loop systems are thus essential before multiple automated medical systems can be deployed in managing complex medical situations. The objective for this study was to develop a Supervisory Algorithm for Casualty Management (SACM) that manages decisions and interplay between two automated systems designed for management of hemorrhage control and resuscitation: an automatic extremity tourniquet system and an adaptive resuscitation controller. SACM monitors the required physiological inputs for both systems and synchronizes each respective system as needed. We present a series of trauma experiments carried out in a physiologically relevant benchtop circulatory system in which SACM must recognize extremity or internal hemorrhage, activate the corresponding algorithm to apply a tourniquet, and then resuscitate back to the target pressure setpoint. SACM continues monitoring after the initial stabilization so that additional medical changes can be quickly identified and addressed, essential to extending automation algorithms past initial trauma resuscitation into extended monitoring. Overall, SACM is an important step in transitioning automated medical systems into emergency and combat trauma situations. Future work will address further interplay between these systems and integrate additional medical systems.

THE LIMFLOW SYSTEM FOR NO-OPTION CRITICAL LIMB ISCHEMIA (CLI) PATIENTS

Critical limb ischemia (CLI) is a common health problem among adults. CLI is a progressive type of peripheral artery disease associated with non-healing ulceration and ischemic pain at rest. Patients with CLI may suffer from gangrene, a consequence of arterial occlusive disease. Patients with CLI have a high-risk of developing chronic health issues such as hyperlipidemia, renal failure, hypertension, and diabetes mellitus. The health and well-being of patients with CLI is low and heterogeneously complex. Patients with CLI cope with complex and chronic health issues that often require appropriate treatment and management. The newly developed Limflow system is the promising future for vascular interventions in CLI patients.

Perioperative Management of Polytrauma Patients with Severe Traumatic Brain Injury Undergoing Emergency Extracranial Surgery: A Narrative Review

Managing the acute phase after a severe traumatic brain injury (TBI) with polytrauma represents a challenging situation for every trauma team member. A worldwide variability in the management of these complex patients has been reported in recent studies. Moreover, limited evidence regarding this topic is available, mainly due to the lack of well-designed studies. Anesthesiologists, as trauma team members, should be familiar with all the issues related to the management of these patients. In this narrative review, we summarize the available evidence in this setting, focusing on perioperative brain protection, cardiorespiratory optimization, and preservation of the coagulative function. An overview on simultaneous multisystem surgery (SMS) is also presented.

What Is the Role of Pharmacists in Treating COVID-19 Patients? The Experiences and Expectations of Front Line Medical Staff

Aims: The study aimed to understand the role and the core values of pharmacists and the professional expectations of medical staff for pharmacists in treating COVID-19 patients from the perspectives of the frontline medical staff. The findings help to understand and provide a reference for the career growth path of future pharmacists.Methods: A phenomenological method was used to conduct in-depth interviews with frontline medical staff working in isolation wards during COVID-19. The interview data were analyzed, and the themes were extracted.Results: Pharmacists played a positive role in ensuring the supply of non-routinely stocked drugs, including traditional Chinese medicine preventative preparations, providing drug information and medication consultation for complex patients, and identifying adverse drug reactions. However, at present, the integration of pharmacists and nurses is poor with inadequate communication, and the pharmaceutical care activities provided to physicians were still not comprehensive.Conclusions: The level of pharmaceutical care provided by pharmacists needs to be further strengthened. Frontline medical teams generally have high professional expectations for pharmacists, including expecting pharmacists to become drug therapy experts. They expect pharmacists to fully participate in clinical decision-making, especially playing a central role in managing drug interactions, contraindications, and other clinical uses of drugs.

Adjusted Morbidity Groups and Intracerebral Haemorrhage: A Retrospective Primary Care Cohort Study

Background: Intracerebral haemorrhage rates are increasing among highly complex, elderly patients. The main objective of this study was to identify modifiable risk factors of intracerebral haemorrhage. Methods: Multicentre, retrospective, community-based cohort study was conducted, including patients in the Adjusted Morbidity Group 4 with no history of intracerebral haemorrhage. Cases were obtained from electronic clinical records of the Catalan Institute of Health and were followed up for five years. The primary outcome was the occurrence of intracerebral haemorrhage during the study period. Demographic, clinical and pharmacological variables were included. Logistic regression analyses were carried out to detect prognostic variables for intracerebral haemorrhage. Results: 4686 subjects were included; 170 (3.6%) suffered an intracerebral haemorrhage (85.8/10,000 person–year [95% CI 85.4 to 86.2]). The HAS-BLED score for intracerebral haemorrhage risk detection obtained the best AUC (0.7) when used in the highest complexity level (cut-off point ≥3). Associated independent risk factors were age ≥80 years, high complexity and use of antiplatelet agents. Conclusions: The Adjusted Morbidity Group 4 is associated with a high risk of intracerebral haemorrhage, particularly for highly complex patients and the use of antiplatelet agents. The risk of bleeding in these patients must be closely monitored.

Challenges and Innovations Brought about by the COVID-19 Pandemic Regarding Medical and Pharmacy Education Especially in Africa and Implications for the Future

Background: Multiple measures introduced early to restrict COVID-19 have dramatically impacted the teaching of medical and pharmacy students, exacerbated by the lack of infrastructure and experience with e-learning at the start of the pandemic. In addition, the costs and reliability of the Internet across Africa pose challenges alongside undertaking clinical teaching and practical programmes. Consequently, there is a need to understand the many challenges and how these were addressed, given increasingly complex patients, to provide future direction. Method: An exploratory study was conducted among senior-level medical and pharmacy educators across Africa, addressing four key questions, including the challenges resulting from the pandemic and how these were dealt with. Results: Staff and student members faced multiple challenges initially, including adapting to online learning. In addition, concerns with the lack of equipment (especially among disadvantaged students), the costs of Internet bundles, and how to conduct practicals and clinical teaching. Multiple activities were undertaken to address these challenges. These included training sessions, developing innovative approaches to teaching, and seeking ways to reduce Internet costs. Robust approaches to practicals, clinical teaching, and assessments have been developed. Conclusions: Appreciable difficulties to teaching arising from the pandemic are being addressed across Africa. Research is ongoing to improve education and assessments.

Virtual Fracture Clinic: A pandemic-ready tool for improving the efficiency of fracture clinic

Background: The traditional model of care of the Orthopaedic Fracture Clinic (OFC) is labour intensive, expensive, has poor satisfaction rates, and often has minimal impact on management and outcomes of patients with minor injuries. Our aim was to implement a Virtual Fracture Clinic (VFC) for the management of minor injuries that is safe, reduces OFC clinic workload and reduces the OFC failure to attend (FTA) rate. Methods: This study was a retrospective longitudinal audit of OFC workload before (January 2012 -February 2017) and after (March 2017 – December 2019) implementation of the VFC. It was performed in an urban district general hospital in South East Queensland, Australia. The primary outcome measures included attendances per timepoint (month). Results: Overall, we observed a significant reduction in total number of patients from 1,055 (IQR 104.5) to 831 (IQR: 103) per month) coming through the OFC following the introduction of the VFC (F = 21.9; df=1; p <0.0001). The failure to attend rate was reduced by 44% from 271 (IQR: 127.3) to 151 (IQR: 72.8) (F=4.0; df=1; p = 0.047). Conclusion: The VFC implementation was successful in improving efficiency and reducing the current OFC workload, as well as reducing FTA rate. Reduction in clinic workload allows more time to be spent with complex patients, prevents clinic backlogs and overbooking, and crowding of waiting rooms. In the midst of a global pandemic that is spread by close contact, virtual clinics seem the way of the future to treat patients whilst minimising risk of COVID-19 spread.