Revista da Associacao Medica Brasileira最新文献

{"title":"Comparison of pain levels developed during intramuscular injections to laterofemoral and ventrogluteal regions in children: a randomized controlled study.","authors":"Serap Balci,&nbsp;Birsen Bilgen Sivri","doi":"10.1590/1806-9282.20220770","DOIUrl":"https://doi.org/10.1590/1806-9282.20220770","url":null,"abstract":"<p><strong>Objective: </strong>The aim of this study was to compare the levels of pain developed during intramuscular injections to the laterofemoral and ventrogluteal regions in children.</p><p><strong>Methods: </strong>The study population consisted of all children aged between 7 and 12 years who presented to the pediatric emergency clinic of a hospital. The sample consisted of 62 children who met the inclusion criteria and agreed to participate in the study, and the children were randomly assigned to each group (laterofemoral n=31, ventrogluteal n=31). \"Buzzy\" and \"deep breathing\" were applied to children in both groups to relieve pain during the procedure. The data were obtained using an Information Form, a visual analog scale, and the Facial Pain Scale-Revised.</p><p><strong>Results: </strong>It was determined that the children in the ventrogluteal group during the intramuscular injections had lower visual analog scale and faces pain scale-revised scores immediately after the procedure compared with the vastus lateralis group, that is, they experienced less pain, and the difference between the two groups was significant (p<0.001).</p><p><strong>Conclusion: </strong>In children, it is recommended to choose the less painful ventrogluteal region for intramuscular injection and to inform health professionals about it.</p>","PeriodicalId":21234,"journal":{"name":"Revista da Associacao Medica Brasileira","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/7f/bd/1806-9282-ramb-69-01-0085.PMC9937611.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9325145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of candesartan treatment on echocardiographic indices of cardiac remodeling in post-myocardial infarction patients.","authors":"Hüseyin Tezcan,&nbsp;Abdullah Tunçez,&nbsp;Kenan Demir,&nbsp;Bulent Behlül Altunkeser,&nbsp;Nazif Aygül,&nbsp;Muhammed Ulvi Yalcin,&nbsp;Muhammed Salih Ates,&nbsp;Canan Aydoğan,&nbsp;Onur Can Polat,&nbsp;Aslıhan Merve Toprak","doi":"10.1590/1806-9282.20220720","DOIUrl":"https://doi.org/10.1590/1806-9282.20220720","url":null,"abstract":"<p><strong>Objective: </strong>Myocardial infarction has unfavorable effect on structural and functional properties of the myocardium, referred to as cardiac remodeling. Left ventricular mass, left ventricular mass index, and relative wall thickness are important predictors of cardiac remodeling. In this study, we investigated the effect of candesartan treatment in comparison with zofenopril treatment on echocardiographic indices of cardiac remodeling in post myocardial infarction patients.</p><p><strong>Material and methods: </strong>In this prospective study, patients who underwent successful percutaneous coronary intervention were randomly assigned to a candesartan or zofenopril treatment. After randomization, echocardiographic indices of cardiac remodeling including left ventricular mass, left ventricular mass index, and relative wall thickness were evaluated before the start of treatment along with 1- and 6-month follow-ups.</p><p><strong>Results: </strong>According to our study, candesartan group showed significant reduction of estimated left ventricular mass and left ventricular mass index at 6-month follow-up visit compared to baseline values (199.53±38.51 g vs. 212.69±40.82 g; 99.05 g/m2 (90.00-116.5) vs. 106.0 g/m2 (96.0∼123.00), p<0.05, respectively). This trend was also observed in zofenopril group during the 6-month period (201.22±40.07 g vs. 207.52±41.61 g; 101.0 g/m2 (92.25-111.75.0) vs. 104.50 g/m2 (95.0∼116.75), p<0.05, respectively). Although both classes of drugs had favorable effects on post-myocardial infarction cardiac remodeling, the absolute benefit was more prominent in candesartan group as compared to zofenopril group (p<0.05).</p><p><strong>Conclusion: </strong>Our results suggest that candesartan treatment following myocardial infarction may potentially be useful in terms of improving post-myocardial infarction cardiac remodeling.</p>","PeriodicalId":21234,"journal":{"name":"Revista da Associacao Medica Brasileira","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/26/69/1806-9282-ramb-69-01-0078.PMC9937609.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9325146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Immunoadsorption therapy in refractory heart failure patients with dilated cardiomyopathy: a potential therapeutic option.","authors":"Yuksel Cavusoglu,&nbsp;Senan Tahmazov,&nbsp;Selda Murat,&nbsp;Olga Meltem Akay","doi":"10.1590/1806-9282.20220784","DOIUrl":"https://doi.org/10.1590/1806-9282.20220784","url":null,"abstract":"SUMMARY OBJECTIVE: Removal of cardiac autoantibodies by immunoadsorption might confer clinical improvement in dilated cardiomyopathy. In this pilot study, we investigated the efficacy and safety of immunoadsorption therapy in refractory heart failure patients with dilated cardiomyopathy. METHODS: This study consisted of 9 heart failure patients with dilated cardiomyopathy, NYHA III-IV, left ventricular ejection fraction <30%, unresponsive to heart failure therapy, and with cardiac autoantibodies. Patients underwent immunoadsorption therapy for five consecutive days using a tryptophan column. Changes in cardiac function (left ventricular ejection fraction, left ventricular end-diastolic diameter, left ventricular end-systolic diameter), exercise capacity (6-minute walk distance), neurohormonal (N-terminal pro-brain natriuretic peptide), proinflammatory (high-sensitive C-reactive protein), and myocardial (cardiac troponin-I), biochemical, and hematological variables were obtained at baseline and after 3 and 6 months of immunoadsorption therapy. RESULTS: Mean left ventricular ejection fraction and 6-minute walk distance significantly increased at 3 months (from 23.27±5.09 to 32.1±1.7%, p=0.01 for left ventricular ejection fraction and from 353±118 to 434±159 m, p=0.04 for 6-minute walk distance) and further increased at 6 months after immunoadsorption therapy (to 34.5±7.7%, p=0.02 for ejection fraction and to 441±136 m, p=0.04 for 6-minute walk distance). NT-proBNP level reduced from 1161(392.8–3034) to 385(116.1–656.5) ng/L (p=0.04), and high-sensitive C-reactive protein decreased from 9.74±0.96 to 4.3±5.8 mg/L (p=0.04) at 6 months. Left ventricular end-diastolic diameter (66.1±5.8 vs. 64.7±8.9 mm) and left ventricular end-systolic diameter (56.1±8.6 vs. 52.3±10.8 mm) tended to decrease but did not reach statistical significance. No significant worsening was observed in creatinine, cardiac troponin-I, and hemoglobin levels after the immunoadsorption procedure. CONCLUSION: In dilated cardiomyopathy patients with refractory heart failure, immunoadsorption may be considered a potentially useful therapeutic option to improve a patient's clinical status.","PeriodicalId":21234,"journal":{"name":"Revista da Associacao Medica Brasileira","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/ee/ec/1806-9282-ramb-69-01-0090.PMC9937600.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9325148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of patients of vaccine side effects after the COVID-19 vaccine.","authors":"Muhammed Semih Gedik,&nbsp;Ali İhsan Kilci,&nbsp;Hakan Hakkoymaz,&nbsp;Ömer Faruk Küçük,&nbsp;Yavuzalp Solak,&nbsp;Nuri Mehmet Basan,&nbsp;Yunus Emre Çıkrıkçı","doi":"10.1590/1806-9282.20221035","DOIUrl":"https://doi.org/10.1590/1806-9282.20221035","url":null,"abstract":"<p><strong>Objective: </strong>Postvaccine side effects were evaluated in patients presenting to our emergency department with complaints of vaccine side effects after taking COVID-19 vaccine, and new unknown side effects ranging from mild complaints to life-threatening risks, and frequency of all side effects were investigated. This study aimed to establish a scientific resource to identify the potential side effects of the vaccine.</p><p><strong>Methods: </strong>Patients' demographic information, clinical characteristics, epicrisis reports, COVID-19 disease and vaccination histories, vital values, and blood values were examined. The SPSS 20.0 package program was used for statistical evaluation. p<0.05 was considered statistically significant.</p><p><strong>Results: </strong>Notably, 13.1% of patients presenting to the emergency department started to have complaints after taking Sinovac vaccine, whereas 86.9% of them had complaints after taking BioNTech vaccine. Also, 36.9% of patients stated that they had COVID-19. All patients had a Glasgow coma scale score of 15 during admission. No patient was hospitalized, ventilator was not needed, and all patients were discharged. While the most common presenting complaint to the emergency department after vaccination was fatigue in 29.7%, the most common diagnoses after examination in the emergency department were myalgia in 32.1% and upper respiratory tract infection in 28.6%.</p><p><strong>Conclusion: </strong>Results and conclusions of our study will guide healthcare workers and patients on the side effects of COVID-19 vaccine.</p>","PeriodicalId":21234,"journal":{"name":"Revista da Associacao Medica Brasileira","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/81/b6/1806-9282-ramb-69-01-0147.PMC9937590.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9326597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Relationship between platelet indices and red cell distribution width and short-term mortality in traumatic brain injury with 30-day mortality.","authors":"Onur Palabiyik,&nbsp;Yakup Tomak,&nbsp;Muberra Acar,&nbsp;Unal Erkorkmaz,&nbsp;Ayca Tas Tuna,&nbsp;Kezban Ozmen Suner,&nbsp;Davut Ceylan","doi":"10.1590/1806-9282.00210889","DOIUrl":"https://doi.org/10.1590/1806-9282.00210889","url":null,"abstract":"<p><strong>Objective: </strong>This study aimed at investigating whether there is a relationship between 7- or 30-day mortality and mean platelet volume, platelet distribution width, platelet count-to-total lymphocyte count ratio, or red cell distribution width in patients with traumatic brain injury.</p><p><strong>Methods: </strong>We retrospectively analyzed intensive care unit patients with traumatic brain injury. We recorded patients' ages; genders; diagnoses; Glasgow Coma Scale scores; length of intensive care unit stay (in days); mean platelet volume, platelet distribution width, platelet count-to-total lymphocyte count ratio, and red cell distribution width values upon hospital admission; and health on the 7th and 30th days of their stays.</p><p><strong>Results: </strong>We analyzed data from 110 patients. Of these, 84 (76.4%) were male and 26 (23.6%) were female. On the 7- and 30-day mortality evaluations, compared to the living patients, the deceased patients had a significantly higher median age and a significantly lower median Glasgow Coma Scale. Thus, increased age and lower Glasgow Coma Scale scores were associated with increased 7- and 30-day mortality rates. mean platelet volume and platelet distribution width values were similar in living and deceased patients. platelet count-to-total lymphocyte count ratio values were lower in deceased patients, but this difference was not statistically significant. Within 30 days after traumatic brain injury, deceased patients' red cell distribution width values were significantly elevated in deceased patients compared to those of living patients.</p><p><strong>Conclusion: </strong>Mean platelet volume, platelet distribution width, and platelet count-to-total lymphocyte count ratio values were not associated with 7- and 30-day mortality, whereas only elevated red cell distribution width was associated with 30-day mortality.</p>","PeriodicalId":21234,"journal":{"name":"Revista da Associacao Medica Brasileira","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/a8/83/1806-9282-ramb-69-01-0018.PMC9937619.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9341421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of dexmedetomidine on tourniquet-induced skeletal muscle injury.","authors":"Wenjie Cheng,&nbsp;Zhe Wu,&nbsp;Jizheng Zhang,&nbsp;Wanlu Ren","doi":"10.1590/1806-9282.20220865","DOIUrl":"https://doi.org/10.1590/1806-9282.20220865","url":null,"abstract":"<p><strong>Objective: </strong>The aim of this study was to investigate whether dexmedetomidine could reduce tourniquet-induced skeletal muscle injury.</p><p><strong>Methods: </strong>C57BL6 male mice were randomly assigned to sham, ischemia/reperfusion, and dexmedetomidine groups. Mice in the ischemia/reperfusion and dexmedetomidine groups received normal saline solution and dexmedetomidine intraperitoneally, respectively. The sham group underwent the same procedure as the ischemia/reperfusion group, with the exception of tourniquet application. Subsequently, the ultrastructure of the gastrocnemius muscle was observed, and its contractile force was examined. In addition, Toll-like receptor 4 and nuclear factor-κB expression within muscles was detected by Western blot.</p><p><strong>Results: </strong>Dexmedetomidine alleviated myocyte damage and increased the contractility of skeletal muscles. Moreover, dexmedetomidine significantly inhibited the expression of Toll-like receptor 4/nuclear factor-κB in the gastrocnemius muscle.</p><p><strong>Conclusion: </strong>Taken together, these results demonstrate that dexmedetomidine administration attenuated tourniquet-induced structural and functional impairment of the skeletal muscle, partly through inactivation of the Toll-like receptor 4/nuclear factor-κB pathway.</p>","PeriodicalId":21234,"journal":{"name":"Revista da Associacao Medica Brasileira","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/70/c7/1806-9282-ramb-69-02-0228.PMC9983473.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9434173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comments on \"Effect of coolant spray on rib fracture pain of geriatric blunt thoracic trauma patients: a randomized controlled trial\".","authors":"André Pontes-Silva,&nbsp;Karolayne Dos Santos Lima,&nbsp;Cassius Iury Anselmo-E-Silva,&nbsp;André Luiz Lopes,&nbsp;Aldair Darlan Santos-de-Araújo","doi":"10.1590/1806-9282.20230091","DOIUrl":"https://doi.org/10.1590/1806-9282.20230091","url":null,"abstract":"This paper 1 aimed to evaluate the effectiveness of cryotherapy in elderly patients with rib fractures due to blunt thoracic trauma via a prospective randomized controlled study (coolant spray group, n=51; placebo spray group, n=50). The authors concluded that coolant spray therapy can be used as a component of multimodal therapy to provide adequate analgesia due to rib fractures in geriatric patients; however, some points of this research do not support this conclusion. First of all, the authors did not describe the study hypothesis (this weakens the results). Second, they did not present the minimal clinically important change of the VAS on the patients’ pain level (making it impossible to analyze clinical relevance). Comparisons of outcomes in clinical trials should consider the minimal clinically important change of the mean differences because the p-value only shows statistical significance, which interpretation translates just a hypothesis test governed by a probability of previously defined error ( α ) 2,3 . Third, they did not present the assess the effect size (e.g., Cohen’s d=[M1–M2]/S pooled ) 4,5 of the comparisons between the times and groups (making it impossible [again] to analyze clinical relevance). Fourth, they should have assessed the patients’ disability for pre-and post-intervention comparisons. As such, the new conclusion is as follows: although this study has shown significant differences between coolant spray therapy and placebo (used as a component of multimodal therapy to provide adequate analgesia due to rib fractures in geriatric patients), its clinical relevance is yet unknown.","PeriodicalId":21234,"journal":{"name":"Revista da Associacao Medica Brasileira","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/00/19/1806-9282-ramb-69-05-e20230091.PMC10204835.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9878863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of coolant spray on rib fracture pain of geriatric blunt thoracic trauma patients: a randomized controlled trial.","authors":"İlker Akbaş,&nbsp;Sinem Dogruyol,&nbsp;Abdullah Osman Kocak,&nbsp;Talha Dogruyol,&nbsp;Meryem Betos Koçak,&nbsp;Sultan Tuna Akgol Gur,&nbsp;Zeynep Cakir","doi":"10.1590/1806-9282.20220048","DOIUrl":"https://doi.org/10.1590/1806-9282.20220048","url":null,"abstract":"<p><strong>Objective: </strong>This study aimed to evaluate the effectiveness of cryotherapy in elderly patients with rib fractures due to blunt thoracic trauma.</p><p><strong>Methods: </strong>In this prospective randomized controlled study, geriatric patients were assigned to groups to receive either coolant spray (n=51) or placebo spray (n=50). The visual analog scale scores of all patients were recorded before starting spray application (V0), as well as at 10th (V1), 20th (V2), 30th (V3), 60th (V4), 120th (V5), and 360th (V6) minute. The mean decreases in the visual analog scale scores were calculated.</p><p><strong>Results: </strong>The differences between V0 and V1, V0 and V2, V0 and V3, and V0 and V4 mean visual analog scale scores measured in the coolant spray group were found to be significantly higher (p<0.001). In V1, V2, V3, and V4 measurements, the incidence of \"clinical effectiveness\" in the coolant spray group was significantly higher than in the placebo group (p=0.001).</p><p><strong>Conclusions: </strong>Coolant spray therapy can be used as a component of multimodal therapy to provide adequate analgesia due to rib fractures in geriatric patients.</p>","PeriodicalId":21234,"journal":{"name":"Revista da Associacao Medica Brasileira","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/7f/38/1806-9282-ramb-69-01-0030.PMC9937612.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9890673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of breast augmentation on female sexuality.","authors":"Paulo Afonso Monteiro Pacheco Guimarães,&nbsp;Elisa Mayumi Kokuba Aihara,&nbsp;Miguel Sabino Neto,&nbsp;Mateus Leme De Marchi,&nbsp;Lydia Masako Ferreira","doi":"10.1590/1806-9282.2023S105","DOIUrl":"https://doi.org/10.1590/1806-9282.2023S105","url":null,"abstract":"<p><strong>Introduction: </strong>The breasts are symbols of femininity, sexuality, and maternity. Breast augmentation is among the most sought-after procedures for women and has a positive impact on quality of life. Sexuality is one of the items that contribute to increased quality of life. Surgical outcomes can be evaluated from the patients' perspective using developed and validated questionnaires. For the assessment of sexuality, the most commonly used instruments are the Female Sexual Quotient and the Female Sexual Function Index, which estimate several domains of sexuality and can be used to evaluate the impact of surgery on it.</p><p><strong>Objective: </strong>The objective of this study was to evaluate the impact of breast augmentation on female sexuality.</p><p><strong>Methods: </strong>We selected 87 patients from the Plastic Surgery Outpatient Clinic of Hospital São Paulo (Federal University of São Paulo) who wished to undergo breast augmentation. The patients were classified into two groups: the Female Sexual Quotient questionnaire was applied to one group, and the Female Sexual Function Index questionnaire was applied to the other group to evaluate sexuality preoperatively as well as at 2 and 4 months postoperatively.</p><p><strong>Results: </strong>In both groups, there was a significant increase in the total score of the Female Sexual Quotient and Female Sexual Function Index questionnaires, and an individual increase in each domain assessed, with a significant increase in the domains of orgasm and sexual satisfaction, as well as foreplay and arousal, indicating an improvement in the patients' sexuality postoperatively.</p><p><strong>Conclusion: </strong>Breast augmentation has a positive impact on female sexuality; furthermore, the Female Sexual Quotient and Female Sexual Function Index are sensitive in detecting this impact.</p>","PeriodicalId":21234,"journal":{"name":"Revista da Associacao Medica Brasileira","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/c4/9e/1806-9282-ramb-69-suppl1-e2023S105.PMC10411706.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9975674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comment on \"Prognostic value of T-wave positivity in lead aVR in COVID-19 pneumonia\".","authors":"Weihua Chen","doi":"10.1590/1806-9282.20230192","DOIUrl":"https://doi.org/10.1590/1806-9282.20230192","url":null,"abstract":"The study 1 entitled “Prognostic value of T-wave positivity in lead aVR in COVID-19 pneumonia” investigated the relationship between T-wave positivity in lead aVR and the prognosis of patients with COVID-19 pneumonia. The findings suggest that T-wave positivity in lead aVR is a useful predictor of poor prognosis in COVID-19 patients. While the findings of this study are interesting, I would like to point out some potential limitations.","PeriodicalId":21234,"journal":{"name":"Revista da Associacao Medica Brasileira","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/60/f4/1806-9282-ramb-69-06-e20230192.PMC10241080.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9998624","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}