Background: Different electrocardiographic (ECG) results, seen in coronavirus disease 2019 (COVID-19) patients are most likely due to the combined impact of acute COVID-19 and chronic heart disease. Few studies have addressed the effects of hypoxemia, the hallmark of the pandemic disease, on ECG. Objectives: The present study discusses the prevalence of arrhythmias and disorders of conduction system in demised and survived COVID-19 patients, usingECGandSokolow-Lyonvoltage as a sign of hypoxemiato predict mortality in the admitted patientsandafter discharge. Methods: We investigated the ECG, and other medical data of 960 COVID-19 patients admitted to Faghihi hospital in Shiraz, Iran, from August 2021 to December 2021. Results: Most of the patients were male (541 or 56. 4%) and older than 65 years old (462 or 48. 1%). A total of 475 (49. 5%) patients died. Multiple logistic regression revealed an independent association between the COVID-19 death rate and cardiovascular disease (OR = 3. 05,95% CI: 1. 96-4. 74), QT dispersion more than 40 (OR = 5. 08,95% CI: 3. 61-7. 15), heart rate (more than 100 versus less than 60 OR = 2. 86,95% CI: 1. 03-7. 9), ST segment elevation myocardial infarction (OR = 3. 93,95% CI: 2. 63-5. 86), poor progression (OR = 2. 33,95% CI: 1. 56-3. 49), hypertrophy (OR = 1. 97,95% CI: 1. 02-3. 81), and Sokolow-Lyon (OR = 2. 91,95% CI: 1. 64-5. 16). Conclusions: Electrocardiographic examination of COVID-19 patients is important during admission and after discharge. Sokolow-Lyon voltage less than 10 can be regarded as an independent predictor of mortality in COVID-19 patients discharged from hospital.

Background: The thoracic curve degree greater than 45° leads to thoracic hyperkyphosis, and common treatment is orthosis treatment. The acceptance rate of orthosis depends on in-brace correction, compliance and patient`s quality of life. Purpose: We aimed to determine the comparison between in-brace correction, compliance and quality of life in Milwaukee group with Lyon group Methods: In this case-evidential study, we retrospectively analyzed data for 23 adolescents who worn Milwaukee brace (n=15) and Lyon brace (n=8). In brace correction was assessed by the comparison between Cobb angle before wearing brace and two months after wearing. Compliance was determined by the percentage of actual hours worn in accordance with the prescribed regimen. Quality of life profile for spine deformity questionnaire is used which shows the quality of life in spinal deformity and mental/psychological functions. Data normality was assessed by K-S. Other sampling methods, moreover, included T tests (pair T-test, in depended T-test). Results: We recruited 23 individuals with thoracic hyper kyphosis with 55 and 75 degree and aged between 10-17 years old. They were divided into two groups [Milwaukee group (n=15), mean age: 14 years old, and mean first Cobb angle: 67. 9 degree, and Lyon group (n=8), mean age: 13. 75 years old, and mean first Cobb angle: 61. 7 degree). No significant differences are found between in-brace correction of two groups (P=0. 073), while the compliance of participants who wore Lyon brace is better, and findings depicted significant differences between quality of life (P=0. 018), and quality of life was improved for Lyon groups. Conclusion: The finding indicates that the Lyon brace had less detrimental impacts on quality of life in comparison with the Milwaukee ones, take this into account, the compliance rate illuminates that Lyon brace is far more preferred, but surprisingly identical in-brace correction is achieved by both braces. Therefore, consideration and integration of significant factors in the treatment plane are capable to revolutionize the outcome correction.

Dear Editor: Raymond Tripier (1838-1916) (Figure 1) was not only a distinguished university Professor in Lyon, but also a great figure in medical research, who decisively influenced the establishment of the French cardiology and internal medicine, this is while his contribution remained etched in world history of cardiology.