Impact of SARS-CoV-2 AstraZeneca Vaccine on Safety and Blood Elements of Egyptian Healthcare Workers.

Background: Many coronavirus disease 2019 (COVID-19) vaccines were approved worldwide. Their safety was the primary concern. In Egypt, Oxford-AstraZeneca (AZ) vaccine was the first approved vaccine initially for healthcare workers (HCWs). Objective: We aim to determine adverse events and hematological abnormalities following the COVID-19 AZ vaccine and estimate the infection rate of the candidates by COVID-19 between the first and second doses of vaccination. Methods: Within 8-10 days of receiving their initial dose of the AZ vaccine, 909 HCWs were assessed for adverse events as part of a prospective longitudinal study. Complete blood counts (CBCs) were evaluated before and one month after vaccination. Results: 37.2% of the candidates experienced side effects following vaccination. Pain at the injection site was the most common (25.4%) and more frequent in participants between 20 and 40 years (27.9%). The mean total leukocyte count (TLC), absolute leukocyte count (ALC), absolute neutrophil count (ANC), and absolute monocyte count (AMC) increased one month following vaccination (P < 0. 001). Sixty-six vaccinated HCWs were infected with COVID-19 between the two vaccine doses. 82% were infected after 14 days of the first dose, while 18% were infected before 14 days (P < 0.0001). Conclusions: Most of the vaccinated personnel did not experience any side effects after the first dose of the vaccine. Furthermore, the most common complaints were pain at the injection site, fatigue, fever, headache, arthralgia, myalgia, and chills. Infected people with COVID-19 after the first dose had significantly more severe disease if they were infected before 14 days than those who got infected later on.

Positive impact of pre-Ramadan education on glycemic control and reducing risk of hypoglycemia in type 2 diabetic elderly patients during COVID 19 pandemic.

BACKGROUND: Elderly patients have higher risks for complications during Ramadan fasting. Educating patients is essential for fasting safely. AIM: To evaluate the impact of pre-Ramadan education in reducing risk of hypoglycemia and achieving glycemic control in elderly. METHODS: A prospective study carried out in outpatients clinics of Internal Medicine department in Assiut university hospital. It included 316 type 2 diabetic patients who intended to fast. They were grouped into 2 groups; < 65 years and ≥ 65 years patients. The patients received pre-Ramadan individual education sessions. A semi-structured questionnaire was used to collect the data to stratify the risk of fasting. The study was carried out in 3 phases. Assessment of hypoglycemia and biochemical parameters after the education was the primary outcome. RESULTS: Fasting blood glucose decreased during and after Ramadan in elderly significantly (p = 0.0001). The patients who achieved fasting blood glucose less than 8 mmol/L increased from 29.3% to 46.6% after Ramadan in elderly patients. HbA1c decreased significantly after Ramadan (p = 0.001). The main cause of breaking fast was hypoglycemia in both groups; 9% vs.7.7% in patients < 65 and ≥ 65 years respectively. The waist circumference showed significant decrease in patient with 65 years old or more (p = 0.05). Total cholesterol and LDL increased with no statistical significance in patients ≥ 65 years (p = 0.512, 0.470). Both groups showed improvement of HDL cholesterol during and after Ramadan (P = 0.0001). CONCLUSION: Pre-fasting education had positive impact on decreasing the risk of symptomatic hypoglycemia in elderly diabetic patients.

Combined Blood Indexes of Systemic Inflammation as a Mirror to Admission to Intensive Care Unit in COVID-19 Patients: A Multicentric Study.

BACKGROUND: The Coronavirus 2019 is a pandemic that has spread worldwide, threatening human health. The main cause of death in patients with COVID-19 is a systemic pro-inflammatory mechanism that quickly progresses to acute respiratory distress syndrome. Hematological ratios as affordable indicators of inflammatory response were studied in COVID-19 patients. The study aimed to study the importance of the blood cell indexes of the systemic inflammatory response, as the Aggregate Index of Systemic Inflammation (AISI), neutrophils lymphocyte to platelet ratio (NLPR), systemic immune-inflammation index (SII) and, systemic inflammation response index (SIRI) in predicting intensive care unit (ICU) admission of COVID-19 patients. METHODS: 495 COVID-19 patients managed in four tertiary centers; divided into non-ICU and ICU groups. RESULTS: Total leucocyte count (TLC), AISI, NLPR, SII, and SIRI were more elevated in the ICU group (P < 0.001 for all except AMC P = 0.006), while this group had less absolute lymphocyte count (ALC) (P = 0.047). We estimated the optimal cut-off values of the hematological ratio; AISI (729), NLPR (0.0195), SII (1346), and SIRI (2.5). SII had the highest specificity (95.6%), while NLPR had the highest sensitivity (61.3%). Age, AISI, CRP, D-dimer, and oxygen aid were the independent predictors for ICU admission in COVID-19 in multivariate logistic regression. CONCLUSION: AISI is a predictor for severity and ICU admission in COVID-19 patients, SII is a predictor of survival, while NLPR and SIRI have an additive role that needs further evaluation.

Long term impact of Covid-19 infection on sleep and mental health: A cross-sectional study.

The long-term impact of the COVID-19 infection on mental health in people and its relation to the severity is unclear. We aimed to study the long-term effect of post-COVID-19 disease on sleep and mental health and to detect possible relationship between severity of COVID-19 at onset and sleep and mental illness. We enrolled 182 participants 6 months post COVID-19 infection and grouped into non-severe(101),severe(60) and critical(20) according to according to WHO guidance. All participants were assessed using Pittsburgh Sleep Quality Index ", Post traumatic stress disorder (PTSD) Checklist for DSM-5, and Symptom Checklist90 test. Only 8.8% had no psychiatric symptoms while 91.2% had psychiatric symptoms as follow (poor sleep (64.8%), PTSD (28.6%), somatization (41.8%), obsessive-compulsive (OCD) (19.8%), depression (11.5%), anxiety (28%), phobic-anxiety (24.2%), psychoticism (17.6%)). Diabetes, oxygen support or mechanically ventilated were a risk for sleep impairment, while high Neutrophil/lymphocyte ratio(NLR) was the only risk factor for PTSD. Other psychiatric illnesses had several risk factors: being female, diabetes, oxygen support or mechanically ventilated. Abnormal sleep, somatization and anxiety are the most common mental illnesses in Post-Covid19. The critical group is common associated with PTSD, anxiety, and psychosis. Being female, diabetic, having oxygen support or mechanically ventilated, and high NLR level are more vulnerable for mental illness in post COVID19.

Can Hematological Ratios Predict Outcome of COVID-19 Patients? A Multicentric Study.

INTRODUCTION: Coronaviruses belong to a large family that leads to respiratory infection of various severity. Hematological ratios are indicators of inflammatory response widely used in viral pneumonia with affordability in developing countries. PURPOSE: Study the role of the neutrophil lymphocyte ratio (NLR), derived NLR ratio (d-NLR), platelet lymphocyte ratio (PLR), and lymphocyte monocyte ratio (LMR) in predicting the outcome of COVID-19 Egyptian patients. METHODS: A retrospective study on 496 COVID-19 Egyptian patients, managed in four tertiary centers, grouped into non-severe, severe, and critical. Patients' laboratory assessment including total leucocyte count (TLC), absolute neutrophil count (ANC), absolute lymphocyte count (ALC), absolute monocyte count (AMC), NLR, d-NLR, LMR and, PLR were reported as well as C reactive protein (CRP), D-dimer and serum ferritin. RESULTS: TLC, ANC, AMC, NLR, d-NLR and, PLR were highest in the critical group (p<0.001 for all except AMC p=0.033), while this group had the least ALC and LMR (p=0.049 and <0.001, respectively). Higher CRP and d-dimer levels were reported in the critical group (p<0.001). At the same time, higher ferritin was found in the severe group more than the critical and non-severe groups (p<0.001, p=0.005, respectively). We calculated the optimal cut-off values of the hematological ratio; NLR (3.5), d-NLR (2.86), PLR (192), and LMR (3). D-NLR had the highest specificity (89.19%), while NLR had the highest sensitivity (71.38%). By univariate logistic regression, age, DM, HTN, cardiovascular diseases, COPD, NLR, d-NLR, LMR and PLR, CRP, steroid, oxygen aids, and mechanical ventilation were associated with the severity of COVID-19. Still, only age, NLR, CRP, and oxygen aid were independent predictors in multivariate logistic regression. CONCLUSION: NLR is a predictor for severity in COVID-19. LMR, d-NLR, and PLR may assist in risk stratification.

Outcome of focused pre-Ramadan education on metabolic and glycaemic parameters in patients with type 2 diabetes mellitus.

BACKGROUND: Ramadan fasting is associated with the risk of acute complications including hypoglycaemia. Therefore, patients' education before Ramadan and follow up during Ramadan is essential for safe fasting. OBJECTIVES: To evaluate the effect of pre-Ramadan education program on biochemical parameters and the risk of hypoglycaemia in patients with type 2 diabetes mellitus. METHODS: A prospective interventional controlled design was carried out on 320 Muslim patients with type 2 diabetes. They were divided into 2 groups; the control group (n = 200) who received standard diabetic care and the intervention group (n = 120) who received focused individualized diabetic education sessions before Ramadan. The study was carried out on 3 phases (before, during and after Ramadan). Post-education change of hypoglycaemia risk and biochemical parameters during Ramadan fasting were the primary outcomes. RESULTS: Fasting blood glucose decreased significantly during, and after Ramadan in both groups (P < 0.001). Hypoglycaemia during fasting occurred in 4.1% of patients in the intervention group vs. 19.5% in the control group. Post Ramadan reduction of HbA1c < 7% increased statistically significantly in the intervention group (from 20.8% of patients before Ramadan to 55.8% after Ramadan). Low-density lipoprotein cholesterol decreased in the intervention group (P = 0.024). The body weight of the patients did not significantly change in both groups. CONCLUSION: There was a significant impact of pre-Ramadan educational program on reduction of hypoglycaemic risk and other acute complications, reduction of low-density lipoprotein cholesterol and improvement of high-density lipoprotein cholesterol. Therefore, it is recommended for the fasting patients especially those with high and very high risk during Ramadan.

Effects of hydrogen peroxide feeding strategies on the photochemical degradation of polyvinyl alcohol.

The performance of batch and fed-batch photoreactors with that of continuous photoreactor for the treatment of aqueous polyvinyl alcohol (PVA) solutions is compared. Hydrogen peroxide feeding strategies, residence time, and [H2O2]/[PVA] mass ratio are examined for their impacts on the molecular weight distribution (MWD) of PVA and the total organic carbon (TOC) removal. The results prove that a continuous addition of H2O2 during the degradation reaction ensures the utilization of the produced radicals to minimize the oxidant consumption and maximize the TOC removal and the PVA degradation in a short irradiation time. Also, the MWD of PVA is found to be bimodal and shifted towards lower molecular weights with small shoulder peak indicating a progressive disappearance of the higher molecular weight fractions that is in accordance with the random chains scission mechanism. Besides, the hydrogen peroxide feeding strategies are found to have a great effect on the reduction in H2O2 residuals in the effluent.