Microcirculatory dysfunction despite the absence of angiographically obvious significant coronary artery disease may potentially generate symptomatic myocardial ischemia; comprehensive assessment both noninvasive and invasive could prove to be of critical interest. We report the case of a 54-year old patient referred for an exertion dyspnea that proved to be caused by both micro and microvascular dysfunction. We present key elements for diagnosis, functional evaluation and management and demonstrate the potential role of speckle tracking imaging in that setting.
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http://dx.doi.org/10.1016/j.ancard.2020.09.002 | DOI Listing |
Heliyon
January 2025
Department of Ultrasound Medicine, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, People's Republic of China.
Objectives: This study aimed to establish standard transesophageal echocardiographic (TEE) measurements of left ventricular (LV) morphology, function, and myocardial work parameters in healthy Beagle dogs using pressure-strain loops (PSL). Additionally, it sought to standardize optimal TEE imaging techniques and explore the potiential application of myocardial work analyis in veterinary medicine.
Methods: Thirty-seven healthy male Beagle dogs were anesthetized, intubated, and mechanically ventilated for TEE examinations.
Circ Cardiovasc Imaging
January 2025
Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China (Y. Lin, M.X., L.Z., Y.Z., P.Z., X.C., M.J., L.G., Q.H., Z.W., Y.Y., Y. Li).
Background: In patients with heart failure with preserved ejection fraction (HFpEF), the impact of type 2 diabetes (T2D) on left ventricular global longitudinal strain (LV GLS) and its prognostic implications remains unclear. We aimed to evaluate LV function using two-dimensional (2D) and three-dimensional (3D) speckle-tracking echocardiography in patients with HFpEF with and without T2D, and to investigate its prognostic significance.
Methods: A total of 335 patients with HFpEF were prospectively enrolled for echocardiographic evaluation.
Diagnostics (Basel)
December 2024
Cardiology and Intensive Care Unit, Department of Cardiology, "Umberto I" Hospital, 84014 Nocera Inferiore, Italy.
Interest in advanced echocardiographic imaging methods is growing. Left atrial strain (LAS) is among recently developed echocardiographic parameters. LAS represents an index of tissue deformation of the left atrium (LA).
View Article and Find Full Text PDFCardiovasc Diagn Ther
December 2024
Department of Medicine, Albert Szent-Györgyi Medical School, University of Szeged, Szeged, Hungary.
Background: Dextro-transposition of the great arteries (dTGA) stands out as a prevalent cyanotic congenital heart defect (CHD), characterized by an intricate reversal in the arrangement of the major arteries. In the past, several surgical procedures have been used to treat dTGA, including the atrial switch. Although the method is no longer used, survivors of the procedure still living among us.
View Article and Find Full Text PDFChin Med Sci J
November 2024
State Key Laboratory for Innovation and Transformation of Luobing Theory; Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences; Department of Cardiology, Qilu Hospital of Shandong University, Jinan 250012, China.
Objectives: To investigate the predictive value of myocardial strain for cardiotoxicity associated with fluorouracil-based chemotherapies in gastrointestinal cancer patients.
Methods: Patients with diagnosis of gastrointestinal cancers, who were hospitalized for chemotherapy involving antimetabolic drugs, were eligible in this prospective study. Echocardiography was performed before and after each chemotherapy cycle during hospitalization until the completion of chemotherapy.
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