ABSTRACT
AIM: The COVID-19 disease primarily affects the respiratory system; however, cardiac involvement has been documented in the acute phase. We aimed to evaluate the cardiac autonomic function and subtle left ventricular dysfunction in those subjects recovered from mild to moderate acute COVID-19 patients but still symptomatic. METHODS AND RESULTS: The study group was composed of 50 subjects with confirmed mild to moderate COVID-19. All subjects underwent routine 2D echocardiography assessment in addition to 2D speckle tracking and 24 h Holter monitoring for HRV analysis. The mean age of the study population was 42 ± 18 years; symptoms were reported as follows 27 (54%) had dyspnoea, 17 (34%) had palpitation, and 7 (14%) had dizziness. Time domain parameters Standard Deviation of NN intervals (SDNN), Standard Deviation of the Average NN intervals for each 5 min segment of a 24 h HRV recording (SDANN), and Root Mean Square of Successive RR interval Differences (rMSSD) were diminished with mean SDNN value being markedly impaired in 12 (24%) patients, while frequency domain parameters as assessed by the ratio of the Low-Frequency band power to the High-Frequency band power (LF/HF) with the mean of 1.837 with 8% of the patients being impaired. SDNN was significantly reduced in patients with impaired global longitudinal strain (p 0.000). The global longitudinal strain was diminished in 10 patients (20%); also, 80% of the patients with impaired GLS had decreased SDNN. CONCLUSION: Our study targeted patients experiencing prolonged symptoms after COVID-19 illness. We detected a high incidence of GLS impairment using Speckle Tracking Echocardiography (STE) and a significant prevalence of diminished HRV. HRV (especially SDNN) and GLS were found to be significantly correlated.
Subject(s)
COVID-19 , Ventricular Dysfunction, Left , Humans , Young Adult , Adult , Middle Aged , Heart Rate/physiology , Global Longitudinal Strain , Predictive Value of Tests , COVID-19/complications , Ventricular Dysfunction, Left/diagnostic imaging , Ventricular Dysfunction, Left/etiologyABSTRACT
Objective: To assess the sequelae of unilateral chewing on muscles of mastication via comparing the approximatemuscular volume (AMV) of the masseter (MM), medial pterygoid (MPM), temporalis (TM),superior and inferior lateral pterygoid muscles (SLPM/ILPM) bilaterally using MRI. Materials and methods:Twenty patients (16 females and 4 males) were selected from outpatient dental clinics of Kaser AlAini Hospitals, Cairo University, complaining from being unilaterally edentulous for one year or more. Alsosix fully dentate individuals (2 males and 4 females) were selected as control group. Magnetic ResonanceImaging (MRI) of the masticatory muscles was performed followed by measuring the approximate musclevolume (AMV) for each muscle bilaterally using the planimetry method. Results: Showed increase in theapproximate muscular volume (AMV) of the dentate side in both right side and left side edentulous patients.Conclusion: Our study shows the effect of long term unilateral chewing on decreasing the AMV in the nonfunctioningside, suggesting that measuring the approximate masticatory muscle volume using MRI couldbe helpful in detection of long-term functional disability of each muscle in comparison to adjacent muscles.
Objetivo: Avaliar as sequelas da mastigação unilateral sobre os músculos da mastigação por meio da comparaçãodo volume aproximado muscular (AMV) do músculo masseter (MM), pterigóideo medial (MPM), temporal(TM), músculos pterigóideos laterais superior e inferior (SLPM/ILPM) bilateralmente usando ressonânciamagnética. Materiais e métodos: Vinte pacientes (16 mulheres e 4 homens) foram selecionados a partir deambulatórios odontológicos do Hospital Kaser Al Aini, Universidade do Cairo; todos os participantes eram unilateralmentedesdentados há um ano ou mais. Também, seis indivíduos totalmente dentados (2 homens e 4mulheres) foram selecionados como grupo controle. Imagem por Ressonância Magnética (RM) dos músculosmastigatórios foi realizada seguido pela medição do volume muscular aproximada (AMV) para cada músculobilateral utilizando o método de planimetria. Resultados: Foi observado aumento no volume aproximadomuscular (AMV) do lado dentado em ambos os lados direito e esquerdo de desdentados laterais. Conclusão:Este estudo mostra o efeito em longo prazo da mastigação unilateral na diminuição da AMV no lado nãofuncional, o que sugere que a medição do volume muscular mastigatório aproximado usando ressonânciamagnética pode ser útil na detecção de deficiência funcional de cada músculo em comparação com músculosadjacentes em longo prazo.
