Complex lesions on coronary arteriography are seen commonly in patients with unstable angina and have been considered to be evidence of ruptured plaque with or without thrombus. To investigate the cause of complex lesions the histologic findings in atherectomy-derived specimens in 111 patients were correlated with lesion morphologic appearance on coronary arteriography. Among 91 patients with complex lesions, 81.3% had thrombus and 57.1% had evidence of plaque rupture. Of 20 patients with smooth lesions, 15% had thrombus and 10% had plaque rupture on histologic evaluation (p < 0.01). On clinical correlation in 86 (83.3%) patients unstable angina was associated with thrombus, or plaque rupture (63.3%), or both on histologic evaluation (p < 0.001 compared with stable angina). Complex lesions not associated with thrombus or plaque rupture occurred mainly (83.3%) in patients with stable angina. Our findings support the concept that complex lesions are usually due to recent thrombus, plaque rupture, or both in patients with unstable coronary syndromes but may be due to remote plaque disruption in patients with stable angina.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1016/0002-8703(95)90346-1 | DOI Listing |
Vet Res
January 2025
Animal Health Unit, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, Japan.
Mycoplasma pneumonia, caused by Mycoplasma bovis (Mycoplasmopsis bovis; M. bovis), is linked with severe inflammatory reactions in the lungs and can be challenging to treat with antibiotics. Biofilms play a significant role in bacterial persistence and contribute to the development of chronic lesions.
View Article and Find Full Text PDFSci Rep
January 2025
Vaccine and Infectious Disease Organization (VIDO), University of Saskatchewan, Saskatoon, SK, Canada.
Bovine tuberculosis (BTB) is an infectious disease of livestock and wildlife species that is caused by pathogenic members of the Mycobacterium tuberculosis complex such as Mycobacterium bovis. Due to the introduction of M. bovis-infected bison in the 1920s, BTB is now endemic in wood bison (Bison bison athabascae) population within the Wood Buffalo National Park (WBNP) in northern Canada.
View Article and Find Full Text PDFNat Commun
January 2025
Cancer Research Center, School of Medicine, Xiamen University, Xiamen, China.
Myelomatous bone disease is a complication characterized by lytic bone lesions, reduced bone formation, bone pain, and increased fracture risk. Understanding these underlying mechanisms is crucial for developing effective therapeutic approaches. Here we show the role of enhancer of zeste homolog 2 (EZH2) in bone lesions induced by myeloma cells.
View Article and Find Full Text PDFAm J Physiol Heart Circ Physiol
January 2025
Université de Tours, Inserm UMR1327 ISCHEMIA Membrane Signalling and Inflammation in reperfusion injuries, Tours, France.
Pathological left ventricular remodeling is a complex process following an acute myocardial infarction, leading to architectural disorganization of the cardiac tissue. This phenomenon is characterized by sterile inflammation and the exaggerated development of fibrotic tissue, which is non-contractile and poorly conductive, responsible for organ dysfunction and heart failure. At present, specific therapies are lacking for both prevention and treatment of this condition, and no biomarkers are currently validated to identify at-risk patients.
View Article and Find Full Text PDFNeurosurg Rev
January 2025
Department of Neurosurgery, Sana Kliniken Duisburg, Academic Teaching Hospital of University Duisburg-Essen, Duisburg, Germany.
Pineal gland lesions pose a significant surgical challenge due to the deep-seated nature of the pineal gland, as well as the limited field of view, and the complex vascular anatomy. The mainstay of surgical treatment, when necessary, is always histopathological clarity and gross total resection (GTR). We evaluate the surgical outcomes for pineal gland lesions, shedding light on functional outcomes, histological findings, and surgical complications.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!