The Relationship Between Immune and Inflammatory Markers and Short-term Clinical Outcomes after Stroke: Side Matters.

BACKGROUND: The two cerebral hemispheres influence the immune response differently. While the left hemisphere enhances cellular immunity, the right hemisphere inhibits it. OBJECTIVES: To determine whether immune and inflammatory markers correlated with stroke severity and hospitalization duration as a function of stroke side. METHODS: The study included 137 patients with unilateral ischemic stroke. The medical records were reviewed for demographic and clinical laboratory data, including C-reactive protein (CRP), white blood cell (WBC) count, its differential stroke side and stroke severity according to the National Institute of Health Stroke Scale (NIHSS), and length of hospital stay (LOS). We examined differences between right side (RS) and left side (LS) stroke on immune and inflammatory markers and compared correlations between these markers and NIHSS and LOS as a function of stroke side. RESULTS: RS stroke patients had higher CRP and monocytes than LS stroke patients. In RS stroke patients, CRP, total WBC, and lymphocyte levels positively correlated with both NIHSS and LOS, whereas levels of neutrophils were positively correlated with NIHSS alone. No correlations were found for LS stroke patients. CONCLUSIONS: Immune-inflammatory markers correlated with stroke severity and LOS only in patients with RS stroke. Neuroimmunological processes influence short-term clinical outcomes after stroke, especially considering the differential effects of the hemispheres on immunity. Prospective studies that evaluate long-term clinical outcomes are needed. Testing the effects of anti-inflammatory treatments on prognosis of RS stroke patients should be considered.

Comparison of stationary and dynamic fractional CO2 laser modalities of large burns treatment: Experimental laboratory model.

OBJECTIVES: To experimentally compare two fractional ablative CO2 laser handpieces intended for the treatment of large area burn scars. Each handpiece coverage rate, depth of penetration and application time were measured and compared in a simulation model of large area burns scars using a dynamic/roller handpiece (small footprint) and a stationary/stamping handpiece (large footprint). METHODS: A 30 W fractional ablative CO2 laser was applied using 2 different handpieces and footprints on a A4 size paper stack. The handpieces were a stationary (stamping) handpiece with 7 × 7 (49 pixels/square shape) and dynamic (roller) handpiece with 7 × 1 (7 pixels/single row shape). For both handpieces the laser settings were fixed at "High" power (30 W), providing an energy level of 100 mJ/pixel. Both handpieces were applied perpendicular to the surface, with the process repeated for the dynamic handpiece with an angled operation. The depth of laser penetration was assessed by the number of pages of paper having visible holes and burn area coverage time measured under each handpiece/condition. RESULTS: The application time was faster and the penetration deeper for the dynamic handpiece compared to the stationary handpiece in both the perpendicular and angled conditions. This study has practical implications for lasers operators to improve time efficacy in large area scars with improved clinical endpoints. CONCLUSION: The fractional ablative dynamic handpiece demonstrated superior application efficiency compared to the stationary handpiece in the simulated treatment of large surface area burn scars, reducing treatment time with improved depth of penetration.

The Hidden Danger of Lithium Battery-Powered Electric Bicycles and Scooters: A Case Series of the Israeli National Burn Center Experience.

Electric-powered bicycles and scooters that use rechargeable lithium batteries are an urban transportation alternative and have become increasingly popular. However, in recent years, there has been an increase in patient admissions to the Israeli National Burn Center with burns associated with their use. In this case series of all patients (n = 9) referred to the Emergency Department (February 2016-October 2020) with lithium-related battery burns from electric-powered bicycles and scooters, we present burn depth, size, treatment, inhalation injuries, and hospitalization. All patients were admitted to the Israeli National Burn Center for treatment. The average TBSA was 27.5% (range 3%-57%). All but one patient had a combination of partial to full-thickness burns affecting the upper and lower limbs. Three patients sustained inhalation injuries and a total of four patients required intubation. Seven patients required surgery that included debridement and, in most cases, skin grafting. The availability and increase in the use of battery-powered bicycles and scooters may lead to an increase in injuries and death if consumers are not aware of the potential dangers related to the safe use of lithium batteries.

Trends and risk factors for mortality in elderly burns patients: A retrospective review.

INTRODUCTION: The elderly experience higher mortality rates and poorer outcomes compared to younger burn survivors with similar injuries. METHODS: This epidemiological study reviewed records of all admitted elderly burn patients collected from five burns facilities in Israel between 1997-2016. Collected data was limited to the population aged 20+, focused on the population aged 60+. RESULTS: Mortality rates for elderly patients increased with TBSA and increases with age. Regression analyses demonstrated a decrease in mortality of 2.9% (p=0.013) per 5 years, an overall decrease of 11.6% over the 20-year study period, with the decline more significant for older age groups. This decrease in mortality was much larger than that observed for all burns patients over this period. The most common cause of injury in the elderly population was fire, with mortality rate highest for this cause. There was no effect of gender on mortality rate. Mortality increased when smoke inhalation was present for TBSA<20%, with mortality unaffected by the presence of smoke inhalation for higher TBSA. The need for surgery correlates with high mortality rates. CONCLUSION: This study identified key factors that impact mortality and demonstrated a large decrease in mortality in the elderly patients over the study period.