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1.
Pediatr Dermatol ; 2024 Sep 03.
Artigo em Inglês | MEDLINE | ID: mdl-39228136

RESUMO

Composite hemangioendothelioma (CHE) is a rare locally aggressive vascular neoplasm of intermediate malignancy. We describe a 2-year-old patient diagnosed with this tumor. Careful documentation of patients with CHE is crucial to better define the prognosis and treatment of this entity.

2.
Ther Adv Respir Dis ; 18: 17534666231212431, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38660953

RESUMO

BACKGROUND: Severe coronavirus 2019 disease (COVID-19) causes acute hypoxemic respiratory failure requiring invasive mechanical ventilation (IMV). Once these symptoms are resolved, patients can present systemic deterioration. OBJECTIVE: The two objectives of this study were as follows: to describe the results of a pulmonary rehabilitation program (PRP), which is divided into three groups with different numbers of sessions (12, 24, and 36), and to associate the variables of pulmonary function, exercise performance, and functionality with the number of sessions and functional improvement. DESIGN: Prospective, observational study. METHODS: PRP consisted of aerobic + strength + flexibility exercises under the supervision and individualized into 12, 24, or 36 sessions (12s, 24s, and 36s), depending on the evolution of each patient. At the beginning of the study and immediately after the intervention, forced vital capacity (FVC), maximal inspiratory pressure, 6-minute walk test (6MWT), sit-to-stand test (STS), maximal handgrip strength (HGS), Fatigue Assessment Scale, Post-COVID-19 Functional Status (PCFS), and health-related quality of life (HRQoL) were measured. RESULTS: The proposed PRP demonstrated a positive effect on pulmonary function, exercise performance, and HRQoL, regardless of the number of sessions. A higher score on the PCFS and more days on IMV were associated with the increased likelihood of needing more sessions, whereas more meters on the 6MWT in the initial evaluation was associated with a reduced likelihood of needing more sessions. Finally, more repetitions on the STS and less distance covered on the initial 6MWT were associated with a greater improvement in exercise performance evaluated with the 6MWT. CONCLUSION: Supervised and individualized PRP for patients with severe post-COVID-19 improves pulmonary function, exercise performance, functionality, and quality of life. Functionality, distance covered on the 6MWT, and the days on IMV are central to the scheduling of the number of sessions for these patients.


Assuntos
COVID-19 , Terapia por Exercício , Qualidade de Vida , Humanos , COVID-19/fisiopatologia , COVID-19/reabilitação , Estudos Prospectivos , Masculino , Feminino , Pessoa de Meia-Idade , Idoso , Terapia por Exercício/métodos , Pulmão/fisiopatologia , Tolerância ao Exercício , Testes de Função Respiratória , Resultado do Tratamento , Recuperação de Função Fisiológica , Índice de Gravidade de Doença , Fatores de Tempo
3.
BMC Geriatr ; 24(1): 313, 2024 Apr 04.
Artigo em Inglês | MEDLINE | ID: mdl-38575913

RESUMO

BACKGROUND: It is internationally known that our population is aging. At the same time, some patients with COVID-19, due to their symptoms, required mechanical ventilation (MV) and subsequent pulmonary rehabilitation (PR). This study aimed to compare the effects of a multimodal PR program "ADULT" versus "OLDER" people with COVID-19 who were on MV. METHODS: The intervention consisted of an 8-week hybrid PR program (2x week). Forced vital capacity (FVC) was measured at the beginning and end of PR, upper and lower limb strength was obtained through hand grip strength (HGS) and the sit-to-stand test (STST), respectively, and functional exercise capacity was measured with the 6-minute walking test (6MWT). RESULTS: The main results were an increase in the FVC in the ADULT and OLDER groups (time effect, P = 0.000; η2 = 0.27), an increase in HGS in the ADULT and OLDER groups (time effect, P = 0.000; η2 = 0.52), in the same way, the number of repetitions on the STST increased in the ADULT and OLDER groups (time effect, P = 0.000; η2 = 0.55). Finally, the distance covered on the 6MWT increased in the ADULT and OLDER groups (time effect, P = 0.000; η2 = 0.65). CONCLUSIONS: The PR program is an effective strategy to improve FVC, muscle strength, and functional exercise capacity similarly in adults and older people with post severe COVID-19 who required MV.


Assuntos
COVID-19 , Doença Pulmonar Obstrutiva Crônica , Humanos , Idoso , Respiração Artificial , Teste de Esforço/métodos , Força da Mão , Tolerância ao Exercício , Capacidade Vital , Força Muscular/fisiologia
4.
Front Endocrinol (Lausanne) ; 14: 1104441, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37223011

RESUMO

Cardiac adipose tissue (CAT) has become an important target for the reduction of disease risk. Supervised exercise programs have shown potential to "significantly" reduce CAT; however, the impact of different exercise modalities is not clear, and the relationships between CAT, physical activity (PA) levels and fitness (PFit) remain unknown. Therefore, the purpose of this study was to analyze the relationships between CAT, PA and PFit, and to explore the effects of different exercise modalities in a group of women with obesity. A total of 26 women (age: 23.41 ± 5.78 years-old) were enrolled in the cross-sectional study. PA, cardiorespiratory fitness, muscular strength, body composition and CAT were evaluated. The pilot intervention included 16 women randomized to a control (CON, n=5), high intensity interval training (HIIT, n = 5) and high-intensity circuit training (HICT, n=6) groups. Statistical analysis showed negative correlations between CAT and vigorous PA (VPA) (r s=-0.41, p=0.037); and between percent body fat (%BF), fat mass (FM), and all PA levels (r s=-0.41- -0.68, p<0.05); while muscle mass was positively associated with moderate-to-vigorous PA, and upper-body lean mass with all PA levels (r s =0.40-0.53, p<0.05). The HICT intervention showed significant improvements (p<0.05) in %BF, FM, fat free mass, and whole-body and lower extremities lean mass and strength after three weeks; however, only leg strength and upper extremities' FM improved significantly compared to CON and HICT. In conclusion, although all types of PA showed a positive influence on body fat content, only VPA significantly impacted on CAT volume. Moreover, three weeks of HICT induced positive changes in PFit in women with obesity. Further research is needed to explore VPA levels and high-intensity exercise interventions for short- and long-term CAT management.


Assuntos
Tecido Adiposo , Obesidade , Feminino , Humanos , Estudos Transversais , Projetos Piloto , Obesidade/terapia , Exercício Físico
5.
Ann Med ; 55(1): 889-897, 2023 12.
Artigo em Inglês | MEDLINE | ID: mdl-36881045

RESUMO

INTRODUCTION: Patients who suffered severe COVID-19 need pulmonary rehabilitation. Training may be prescribed objectively based on the maximum speed in the six-minute walk test. The objective of this study was to determine the effects of a personalized pulmonary rehabilitation program based on the six-minute walk test speed for post-COVID-19 patients. METHODS: Observational quasi-experimental study. The pulmonary rehabilitation program consisted of 8 weeks of training, twice a week for 60 minutes per session of supervised exercise. Additionally, the patients carried out home respiratory training. Patients were evaluated by exercise test, spirometry and the Fatigue Assessment Scale before and after the eight-week pulmonary rehabilitation program. RESULTS: After the pulmonary rehabilitation program, forced vital capacity increased from 2.47 ± 0.60 to 3.06 ± 0.77 L (p < .001) and the six-minute walk test result increased from 363.50 ± 88.87 to 480.9 ± 59.25 m (p < .001). In fatigue perception, a significant decrease was observed, from 24.92 ± 7.01 to 19.10 ± 7.07 points (p < .01). Isotime evaluation of the Incremental Test and the Continuous Test showed a significant reduction in heart rate, dyspnoea and fatigue. CONCLUSION: The eight-week personalized pulmonary rehabilitation program prescribed on the basis of the six-minute walk test speed improved respiratory function, fatigue perception and the six-minute walk test result in post-COVID-19 patients.KEY MESSAGESCOVID-19 is a multisystem disease with common complications affecting the respiratory, cardiac and musculoskeletal systems.The 6MWT speed-based training plan allowed for increased speed and incline during the eight-week RP program.Aerobic, strength and flexibility training reduced HR, dyspnoea and fatigue in severe post-COVID-19 patients.


Assuntos
COVID-19 , Humanos , Dispneia/etiologia , Dispneia/terapia , Exercício Físico , Teste de Esforço , Fadiga/etiologia
6.
J Eat Disord ; 11(1): 3, 2023 Jan 10.
Artigo em Inglês | MEDLINE | ID: mdl-36627654

RESUMO

Individuals with eating disorders (ED) experience prolonged malnutrition, binge episodes, and compensatory behaviours that affect every organ system. Psychological and physiological symptoms are worsened with comorbid dysfunctional exercise, seen in up to 80% of those with an ED. Although return to exercise is an important component of treatment and recovery, little is known about the contraindications and risks of exercise engagement specific to those with an ED. This paper provides a comprehensive narrative review of the medical and physiological complications of engaging in exercise during ED treatment and outlines when exercise may be contraindicated or used in modified or cautionary ways. We conducted a literature search on MEDLINE, PubMed, and PsychArticles to identify relevant articles, which yielded six categories of medical and physiological complications of ED that may be exacerbated by exercise: energy availability, cardiovascular health, electrolyte abnormalities, biomedical function markers, sex hormones, and body composition. We summarize the evidence for these complications for readers and offer an initial set of recommendations for incorporating exercise during ED treatment based on our findings. This review may serve as a resource for members of ED treatment teams to help evaluate more readily and confidently whether exercise is safe for individual patients and when modifications and caution may be warranted.


Dysfunctional exercise (DEX) is a symptom of eating disorders (ED) that precedes, maintains and exacerbates ED pathology. Health professionals struggle to clinically address and manage DEX as little information is available about its assessment and safe management. The current review provides a comprehensive summary of the medical and physiological complications of ED that may be exacerbated by exercise and outlines when exercise may be contraindicated or used in a modified or cautionary way. The literature review yielded six categories of complications: energy availability, cardiovascular health, electrolyte abnormalities, biomedical function markers, sex hormones, and body composition. We summarize the evidence for these complications for readers and offer an initial set of recommendations for incorporating exercise during ED treatment based on our findings. This review may serve as a resource for members of ED treatment teams to help evaluate more readily and confidently whether exercise is safe for individual patients and when modifications and caution may be warranted.

7.
La Plata; Subsecretaría de Salud Mental, Consumos Problemáticos y Violencias en el Ámbito de la Salud; 20221015. 1-4 p.
Não convencional em Espanhol | LILACS | ID: biblio-1551379
8.
J Food Prot ; 85(11): 1506-1514, 2022 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-35894663

RESUMO

ABSTRACT: The antimicrobial activity of a commercial Lippia citriodora extract (LCE) at 2,500 µg mL-1 (maximum sensory acceptable level) and vanillin (MIC and 2 MIC) alone and in combination were analyzed in four strains of Escherichia coli (two nonverotoxigenic and two verotoxigenic) in cation-adjusted Mueller-Hinton medium and in Piel de Sapo melon juice (MJ) stored under refrigeration (4°C) for 7 days. The bacterial counts of the four strains together in untreated samples were higher (≈4 log CFU/mL) in cation-adjusted Mueller-Hinton medium than in stored MJ. LCE showed higher antimicrobial activity in MJ than in standard culture broth, but vanillin showed a higher effect in broth. The verotoxigenic strain E. coli O146:H stx2 was the most sensitive to LCE in refrigerated MJ. Combinations of vanillin (at MIC and 2 MIC) with LCE were very effective in reducing E. coli counts either in broth or in refrigerated MJ to undetectable levels. Bactericidal effects were observed for the combinations in all strains in broth and in MJ. Also, these combinations showed an antimicrobial synergistic effect after day 3 of storage in MJ in three of the bacterial strains tested. These results indicate that the combination of LCE (at maximum sensory acceptable levels) and vanillin (at low concentrations) could be considered as a promising natural antimicrobial agent to inhibit verotoxigenic E. coli growth in refrigerated MJ and improve its quality.


Assuntos
Cucurbitaceae , Escherichia coli Êntero-Hemorrágica , Lippia , Escherichia coli Shiga Toxigênica , Carga Bacteriana
9.
Cir. Urug ; 6(1): e402, jul. 2022. ilus
Artigo em Espanhol | LILACS, UY-BNMED, BNUY | ID: biblio-1384412

RESUMO

La diverticulosis puede presentarse en cualquier sector del tubo digestivo. La topografía de intestino delgado es infrecuente, se presenta sobre todo a nivel del yeyuno y en un 35% de los casos se asocia con diverticulosis colónica. Es más frecuente en mayores de 40 años. Los divertículos van disminuyendo de tamaño y número hacia el sector distal. Habitualmente el diagnóstico es incidental, sin embargo, pueden presentar complicaciones de las cuales se destacan por frecuencia el sangrado gastrointestinal y la diverticulitis. Se plantea que la deficiencia de fibra dietética generaría anomalías en el peristaltismo intestinal, lo que junto con fenómenos pseudo-obstructivos y alta presión intraluminal, actuaría en áreas de debilidad focal provocando la lesión. Presentamos el caso de una paciente de 88 años con una oclusión de colon a la cual se le realizó una cirugía de Hartmann, en el intraoperatorio se identificó divertículos de yeyuno sin elementos complicaciones.


Assuntos
Humanos , Feminino , Idoso de 80 Anos ou mais , Divertículo/diagnóstico , Colo/cirurgia , Obstrução Intestinal/cirurgia , Jejuno , Octogenários , Complicações Intraoperatórias
10.
Cuad Bioet ; 33(108): 149-156, 2022.
Artigo em Espanhol | MEDLINE | ID: mdl-35732049

RESUMO

Nowadays, medicine tends towards specialization. But there are also more shared or interdisciplinary processes in which professionals request some type of technique or a diagnostic or therapeutic procedure that must performed by another specialist. In this scenario that involves different professionals, it is reasonable a certain debate about which of them should obtain the informed consent of the patient. The first error would be to pose this process as a confrontation between professionals who derive or delegate their own responsibilities to another. It is, on the contrary, a teamwork and not a mere delegation of duties. On the one hand, it should be the doctor who carries out the technique and, therefore, knows it best as a procedure and is an expert in the early diagnosis and management of side effects, who should inform about the procedure and its risks. And, therefore, it is his duty to obtain the appropriate informed consent. And, since everything is understood as a shared process, it would also be advisable that the physician in charge of the care and follow-up of the patient, and who has taken the initiative to request this technique, had already provided basic information, more focused on the reason for the indication, and that a pre-consent had been obtained, that is a prior elementary verbal consent of acceptance or, at least, of non-rejection. And it would be convenient to record this information in the medical record as well.


Assuntos
Consentimento Livre e Esclarecido , Prontuários Médicos , Humanos
11.
Med Biol Eng Comput ; 60(8): 2291-2306, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-35726000

RESUMO

The process of identifying cardiac adipose tissue (CAT) from volumetric magnetic resonance imaging of the heart is tedious, time-consuming, and often dependent on observer interpretation. Many 2-dimensional (2D) convolutional neural networks (CNNs) have been implemented to automate the cardiac segmentation process, but none have attempted to identify CAT. Furthermore, the results from automatic segmentation of other cardiac structures leave room for improvement. This study investigated the viability of a 3-dimensional (3D) CNN in comparison to a similar 2D CNN. Both models used a U-Net architecture to simultaneously classify CAT, left myocardium, left ventricle, and right myocardium. The multi-phase model trained with multiple observers' segmentations reached a whole-volume Dice similarity coefficient (DSC) of 0.925 across all classes and 0.640 for CAT specifically; the corresponding 2D model's DSC across all classes was 0.902 and 0.590 for CAT specifically. This 3D model also achieved a higher level of CAT-specific DSC agreement with a group of observers with a Williams Index score of 0.973 in comparison to the 2D model's score of 0.822.


Assuntos
Processamento de Imagem Assistida por Computador , Imageamento por Ressonância Magnética , Tecido Adiposo/diagnóstico por imagem , Coração/diagnóstico por imagem , Processamento de Imagem Assistida por Computador/métodos , Imageamento por Ressonância Magnética/métodos , Redes Neurais de Computação
12.
Artigo em Inglês | MEDLINE | ID: mdl-35457361

RESUMO

Combat sports athletes competing in the same discipline exhibit notable and substantial differences in body weight, body composition (BC) and adiposity. No studies have considered the influence of adiposity levels in the agreement between different BC assessment methods. The aim of this study was to analyze the influence of adiposity in the agreement between different methods used to estimate relative body fat (%BF) in Olympic combat sport athletes. A total of 38 male athletes were evaluated using air displacement plethysmography and dual-energy X-ray absorptiometry (DXA) as laboratory methods, and bioelectrical impedance analysis (BIA), near-infrared interactance (NIR) and anthropometry as field methods. All methods were compared to DXA. Agreement analyses were performed by means of individual intraclass correlation coefficients (ICCs) for each method compared to DXA, Bland−Altman plots and paired Student t-tests. The ICCs for the different methods compared to DXA were analyzed, considering tertiles of %BF, tertiles of body weight and type of sport. For the whole group, individual ICCs oscillated between 0.806 for BIA and 0.942 for anthropometry. BIA showed a statistically significant underestimation of %BF when compared to DXA. The agreement between every method and DXA was not affected by %BF, but it was highest in athletes at the highest %BF tertile (>13%). The ICC between NIR and DXA was poor in 72−82 kg athletes. Our results indicate that field methods are useful for routine %BF analysis, and that anthropometry is particularly appropriate, as it showed the highest accuracy irrespective of the athletes' adiposity.


Assuntos
Tecido Adiposo , Adiposidade , Absorciometria de Fóton , Tecido Adiposo/diagnóstico por imagem , Composição Corporal , Peso Corporal , Impedância Elétrica , Feminino , Humanos , Masculino , Obesidade
13.
Medicina (Kaunas) ; 58(4)2022 Apr 05.
Artigo em Inglês | MEDLINE | ID: mdl-35454353

RESUMO

Background and Objectives: Patients who survive severe COVID-19 require significant pulmonary rehabilitation. Heart rate (HR) has been used as a safety variable in the evaluation of the results of interventions in patients undergoing pulmonary rehabilitation. The aim of this research was to analyse HR during a pulmonary rehabilitation program in post-severe COVID-19 patients who survived mechanical ventilation (MV). The study includes the initial and final evaluations and aerobic training sessions. Materials and Methods: Twenty patients (58 ± 13 years, 11 men) were trained for 8 weeks. A 6-minute walk test (6 MWT) was performed and, subsequently, a supervised and individualised training plan was created. Resting heart rate (RHR), heart rate recovery (HRR), heart rate at minute 6 (HR6 min) and the product of HR6 min and systolic blood pressure (HR6 minxSBP) were measured at 6 MWT. In addition, HR was measured at each training session. Results: After 8 weeks of pulmonary rehabilitation, patients decreased their RHR from 81.95 ± 9.36 to 73.60 ± 9.82 beats/min (p < 0.001) and significantly increased their HRR from 12.45 ± 10.22 to 20.55 ± 7.33 beats/min (p = 0.005). HR6 min presented a significant relationship with walking speed and walked distance after the pulmonary rehabilitation period (r = 0.555, p = 0.011 and r = 0.613, p = 0.011, respectively). HR6 minxSBP presented a significant relationship with walking speed and walked distance after training (r = 0.538, p = 0.014 and r = 0.568, p = 0.008, respectively). In the pulmonary rehabilitation sessions, a significant decrease in HR was observed at minutes 1, 6 and 15 (p < 0.05) between sessions 1 and 6 and at minute 1 between sessions 1 and 12. Conclusions: Eight weeks of individualised and supervised pulmonary rehabilitation were effective in improving RHR and HRR in COVID-19 patients surviving MV. HR is an easily accessible indicator that could help to monitor the evaluation and development of a pulmonary rehabilitation program in COVID-19 patients who survived MV.


Assuntos
COVID-19 , Teste de Esforço , Feminino , Frequência Cardíaca/fisiologia , Humanos , Masculino , Respiração Artificial , Sobreviventes , Caminhada
14.
Complement Ther Clin Pract ; 48: 101576, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-35367806

RESUMO

BACKGROUND: and purpose: Exercise has not typically been used as an adjunct in treatment of anorexia nervosa (AN). This study aimed to examine the effects of progressive resistance exercise (PREx) on perceived quality of life (QoL) and body composition in adolescents with AN. MATERIALS AND METHODS: Forty-four adolescents diagnosed with AN were randomly allocated to either PREx or control groups after hospitalization. The PREx group completed twenty-four PREx sessions over two months including three sets of 8-10 repetitions of eight whole-body exercises at a moderate intensity. QoL and body composition were evaluated at baseline and after two months using Health Questionnaire Short-Form 36 (SF-36) and anthropometric measurements. RESULTS: At completion, forty-one participants (n = 19 PREx, and n = 22 controls) with mean age of 12.78 ± 0.88 years and mean body mass index of 18 ± 2.2 kg/m2 were analyzed. Significant group x time effects were found on SF-36 role physical (RP) scores. Significant improvements with large effect sizes (d > 0.72) were found in RP, and arm circumferences in the PREx group. Spearman association analyses between percent change in anthropometric variables and change in QoL scores showed positive associations with moderate-to-large effect sizes in the PREx group among the following variables: mid-thigh-circumference, physical functioning (PF) and general health (GH); calf-circumference relaxed and body pain; biceps skinfold and GH scores; triceps-skinfold, and role physical (RP) and vitality (VT); supraspinale-skinfold and RP and VT; mid-thigh-skinfold and calf-skinfold and VT. CONCLUSION: PREx after hospitalization enables modest positive changes in QoL associated to anthropometric changes in adolescents with AN without adverse effects on weight recovery.


Assuntos
Anorexia Nervosa , Terapias Complementares , Treinamento Resistido , Adolescente , Anorexia Nervosa/terapia , Composição Corporal , Criança , Humanos , Qualidade de Vida
15.
Artigo em Inglês | MEDLINE | ID: mdl-35270370

RESUMO

Background: Incorporating physical activity (PA) has been a challenge for health care professionals working with anorexia nervosa (AN) patients. This has contributed to partial physical fitness (PFit) recovery that persists after weight restoration. Objective: This cross-sectional study aimed to examine the relationships between PA, sedentary behaviors, PFit, and quality of life (QoL) in a group of adolescents after hospitalization. Methods: QoL, PA, and sedentary behaviors were measured using the Health-Questionnaire Short-Form 36 (SF-36) and accelerometers, while PFit was assessed through cardiorespiratory fitness, body composition (anthropometry), and strength (six repetition maximum) tests in a total of 63 patients. Results: Light-PA (LPA), moderate-PA (MPA), moderate-to-vigorous-PA (MVPA), and relative sedentary time (%ST) did not meet the recommendations (p < 0.001). Only 22% of the patients met MVPA criteria, and ~82% exceeded %ST. SF-36 scores were lower than normative values except the physical component scale. Absolute cardiorespiratory fitness was reduced (p < 0.001) in 84% of the patients, and was positively associated to body weight, body mass index (BMI), circumferences, and muscle areas. Additional positive significant relationships were found between QoL, muscular strength, and body composition, and negative associations between vigorous-to-very vigorous PA and BMI, skinfolds, and percent body fat. Regression analyses revealed lower body strength as an explanatory factor for improved QoL (OR 1.03, 95%CI 1.00−1.07). Conclusions: PFit and QoL scores are poor after hospitalization. LPA, MPA, and MVPA do not meet recommendations. PFit management­with emphasis on improving muscular fitness­may be a valuable strategy for QoL improvement in AN after hospitalization.


Assuntos
Anorexia Nervosa , Qualidade de Vida , Adolescente , Índice de Massa Corporal , Estudos Transversais , Humanos , Aptidão Física/fisiologia , Comportamento Sedentário
16.
J Interv Card Electrophysiol ; 64(3): 705-713, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-35142969

RESUMO

PURPOSE: In this study, we analyzed PFO implications in atrial fibrillation (AF) ablation. METHODS: Six hundred and twenty-five consecutive patients with AF undergoing PV isolation were included. We considered that a large and/or compliant PFO was present if the catheters advanced gently into the LA without puncturing the septum. Atrial tachyarrhythmias after the 3-month blanking period were classified as a recurrence. RESULTS: Out of the 625 patients included, 36 (5.8%) were found to have PFO. No significant differences were observed in the clinical characteristics of patients with PFO compared with patients without PFO. Nevertheless, patients with PFO had lower acute success in PV isolation compared with patients without PFO (98.2% vs. 88.5%; p = 0.006) even after adjusting for age, sex, type of AF, LA area, cardiomyopathy, time from AF diagnosis to the ablation, and ablation technique (odds ratio: 0.1; 95% confidence interval (CI): 0.02-0.9; p = 0.039). In 546 patients followed more than 6 months, the recurrence rate of any atrial tachyarrhythmia after 18.6 ± 11.9 months was significantly higher in patients with PFO compared with patients without PFO (41.9 vs. 70%; p = 0.012). This difference remained significant after adjusting for age, sex, type of AF, LA area, cardiomyopathy, time from AF diagnosis to the ablation, and ablation technique (hazard ratio: 1.9; 95% CI: 1.1-3.3; p = 0.015). CONCLUSIONS: The presence of a large and/or compliant PFO is an independent factor for PV isolation failure and arrhythmia recurrence rate after the ablation.


Assuntos
Fibrilação Atrial , Ablação por Cateter , Forame Oval Patente , Fibrilação Atrial/cirurgia , Feminino , Forame Oval Patente/complicações , Humanos , Masculino , Recidiva , Resultado do Tratamento
17.
J Med Imaging (Bellingham) ; 9(1): 017001, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-35005059

RESUMO

Purpose: The coronary arteries are embedded in a layer of fat known as epicardial adipose tissue (EAT). The EAT influences the development of coronary artery disease (CAD), and increased EAT volume can be indicative of the presence and type of CAD. Identification of EAT using echocardiography is challenging and only sometimes feasible on the free wall of the right ventricle. We investigated the use of spectral analysis of the ultrasound radiofrequency (RF) backscatter for its potential to provide a more complete characterization of the EAT. Approach: Autoregressive (AR) models facilitated analysis of the short-time signals and allowed tuning of the optimal order of the spectral estimation process. The spectra were normalized using a reference phantom and spectral features were computed from both normalized and non-normalized data. The features were used to train random forests for classification of EAT, myocardium, and blood. Results: Using an AR order of 15 with the normalized data, a Monte Carlo cross validation yielded accuracies of 87.9% for EAT, 84.8% for myocardium, and 93.3% for blood in a database of 805 regions-of-interest. Youden's index, the sum of sensitivity, and specificity minus 1 were 0.799, 0.755, and 0.933, respectively. Conclusions: We demonstrated that spectral analysis of the raw RF signals may facilitate identification of the EAT when it may not otherwise be visible in traditional B-mode images.

19.
Polymers (Basel) ; 13(24)2021 Dec 14.
Artigo em Inglês | MEDLINE | ID: mdl-34960927

RESUMO

In this work, the use of nanostructured conducting polymer deposits on energy-storing devices is described. The cathode and the anode are electrochemically modified with nanowires of polypyrrole and poly(3,4-ethylenedioxythiophene), respectively, prepared after the use of a mesoporous silica template. The effect of aqueous or ionic liquid medium is assayed during battery characterization studies. The nanostructured device greatly surpasses the performance of the bulk configuration in terms of specific capacity, energy, and power. Moreover, compared with devices found in the literature with similar designs, the nanostructured device prepared here shows better battery characteristics, including cyclability. Finally, considering the semi-conducting properties of the components, the device was adapted to the design of a solar-rechargeable device by the inclusion of a titanium oxide layer and cis-bis(isothiocyanate)-bis(2,2'-bipyridyl-4,4'-dicarboxylate) ruthenium (II) dye. The device proved that the nanostructured design is also appropriate for the implementation of solar-rechargeable battery, although its performance still requires further optimization.

20.
Artigo em Inglês | MEDLINE | ID: mdl-34639733

RESUMO

COVID-19 has caused a certain proportion of patients to be hospitalized in intensive care units (ICU) and may cause musculoskeletal and neurological deficits following intubation and mechanical ventilation. The aim of this study was to quantify and describe the presence of shoulder pain in patients released from hospitals after suffering COVID-19. Patients with positive Apley tests were sent to a physiatrist for a clinical evaluation, ultrasound and electromyography (EMG). This evaluation was completed with a pain scale, joint range and shoulder muscle strength evaluations. Of the one-hundred-sixteen patients, seventy eight entered the respiratory rehabilitation program. Twenty patients were sent to the multidisciplinary shoulder team for positive Apley scratch tests. Of these twenty patients, one had only an EMG, ten had only ultrasounds, seven had an EMG and ultrasound and two did not need complementary tests. The twenty patients were sent to the physical therapist, with all presenting pain and diminished joint range and muscle strength in the affected shoulder. In this context, shoulder pain could be associated with the prone position in the ICU. We suggest time control and position change for patients on mechanical ventilation in a prone position with COVID-19.


Assuntos
COVID-19 , Respiração Artificial , Humanos , Respiração Artificial/efeitos adversos , SARS-CoV-2 , Dor de Ombro/epidemiologia , Dor de Ombro/etiologia , Sobreviventes
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