ABSTRACT
BACKGROUND: Diastolic dysfunction is traditionally believed to be the first subclinical manifestation of diabetic cardiomyopathy (DCM), leading to systolic dysfunction and then overt heart failure. However, in the last few years, several studies suggested that systolic subclinical dysfunction measured by speckle-tracking echocardiography (STE) may appear ahead of diastolic dysfunction. In this review, the main endpoint is to show whether subclinical myocardial systolic dysfunction appears ahead of diastolic dysfunction and the implication this may have on the evolution and management of DCM. MATERIALS AND METHODS: We performed a search in PubMed for all relevant publications on the assessment of DCM by STE from 1 June 2015 to 1 June 2020. RESULTS AND CONCLUSIONS: The results illustrate that subclinical systolic dysfunction assessed by STE is present in early DCM stages, with or without the association of diastolic dysfunction. This could be a promising perspective for the early management of patients with DCM leading to the prevention of the overt form of disease.
Subject(s)
Asymptomatic Diseases , Diabetic Cardiomyopathies/diagnostic imaging , Echocardiography/methods , Ventricular Dysfunction, Left/diagnostic imaging , Diabetic Cardiomyopathies/physiopathology , Diastole , Humans , Systole , Ventricular Dysfunction, Left/physiopathologyABSTRACT
The case of a male patient is reported, who presented with renal carcinoma and tumor thrombus in the inferior vena cava (IVC) extending from the right atrium (RA) to the bifurcation of IVC, common and external right iliac vein thrombosis, common and deep right femoral vein thrombosis, right popliteal vein thrombosis, with pulmonary and hepatic metastasis, treated with sorafenib. Renal cell carcinoma (RCC), the most common form of kidney cancer, occurs in 90% of cases and is nearly twice as common in men as in women. The diagnosis of RCC is accompanied by intravascular tumor thrombus in 10% of cases, and further extension of the tumor reaching RA is detected in approximately 1% of all patients. Therapy for advanced renal cell cancer has evolved considerably in the past decade, with new agents greeted like "buried treasure." Before 2005, the widely used systemic agents were cytokine interferon alfa and interleukin-2, which yielded modest efficacy and substantial toxicity. Tyrosine kinase inhibitors (TKIs) increase progression-free survival and/or overall survival as both first-line and second-line treatments for metastatic RCC. Sorafenib is an oral multikinase inhibitor with activity against Raf-1 serine/threonine kinase, B-Raf, vascular endothelial growth factor receptor-2 (VEGFR-2), platelet-derived growth factor receptor (PDGFR), FMS-like tyrosine kinase 3 (FLT-3), and c-KIT.
