Revista da Associacao Medica Brasileira (1992)
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Rev Assoc Med Bras (1992) · Jan 2024
Local imaging to interpret tumor size in F18 fluorodeoxyglucose positron emission tomography/CT in lung cancers.
This study aimed to determine the thoracic and extra-thoracic extension of the disease in patients diagnosed with lung cancer and who had whole-body F18-fluorodeoxyglucose positron emission tomography/CT imaging and to investigate whether there is a relationship between tumor size and extrathoracic spread. ⋯ Positron emission tomography/CT may be more appropriate for cases with a nodule diameter of ≤20 mm. Performing local imaging in patients with a nodule diameter of ≤20 mm could reduce radiation exposure and save radiopharmaceuticals used in positron emission tomography/CT imaging.
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Rev Assoc Med Bras (1992) · Jan 2024
The effect of preoperative embolization rate on surgical outcomes for carotid paraganglioma resection.
Preoperative embolization of paragangliomas decreases tumor volume and reduces intraoperative blood loss. This study aimed to evaluate the effect of the rate of devascularization achieved by preoperative embolization of carotid body tumors on surgical outcomes. ⋯ The preoperative devascularization rate should be at least 90% to minimize the risk of vascular complications.
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Rev Assoc Med Bras (1992) · Jan 2024
Contributing role of metabolic genes APOE, FTO, and LPL in the development of atrial fibrillation: insights from a case-control study.
The aim of the study was to examine the expression profile of genes (APOE, FTO, and LPL) associated with metabolic syndrome (MetS) in subjects with concomitant atrial fibrillation (AF). ⋯ The decreased expression of APOE, FTO, and LPL genes in AF with and without MetS indicates their potential contributing role in the pathogenesis of AF.
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Rev Assoc Med Bras (1992) · Jan 2024
The role of ultrasound and mitofusin-2 levels to predict pregnancy outcomes in patients with severe preeclampsia: a case-control study.
The aim of this study was to evaluate mitofusin-2 levels and fetal Doppler ultrasonography effects in patients with severe preeclampsia. ⋯ This study recommends the use of mitofusin-2 together with fetal Doppler ultrasound findings as a reliable indicator of preeclampsia severity.
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Rev Assoc Med Bras (1992) · Jan 2024
The usefulness of anti-HCV signal to cut-off ratio in predicting hepatitis C viremia and the effect of genotype differences on signal to cut-off ratio.
In the hepatitis C virus (HCV) diagnostic algorithm, an anti-HCV screening test is recommended first. In countries with low HCV prevalence, anti-HCV testing can often give false-positive results. This may lead to unnecessary retesting, increased costs, and psychological stress for patients. ⋯ If anti-HCV S/Co is ≥10.86, direct HCV RNA testing may be recommended; However, the possibility of false positivity should be considered in patients with a S/Co value below 10.86.