Aim: To estimate the capabilities of 99mTc-pyrphotech single-photon emission computed tomography (SPECT) in the diagnosis of myocardial inflammatory changes in patients with persistent atrial fibrillation (AF).
Subjects And Methods: Nineteen patients (11 males and 8 females, mean age 47.46 ± 9.92 years) with persistent idiopathic AF underwent preoperative complete clinical and instrumental examination. 99mTc-pyrphotech SPECT was performed to identify foci of myocardial inflammatory changes. After completing 99mTC-pyrphotech scanning, resting myocardial perfusion scintigraphy with 99mTC-methoxyisobutylisonitrile (99mTc-MIBI) was performed in accordance with the standard protocol. The scintigrams obtained in both studies were then combined using the applied programs Jet Stream Workspace Release 2.5 (Philips) and the application Fusion. During invasive intervention, endomyocardial samples were intraoperatively taken from all the patients for histological and immunohistochemical examinations.
Results: Abnormal 99mTc-pyrphotech myocardial accumulation was found in 7 (36.8%) of the examinees, multiple foci in 3 cases and single foci in 4. Analysis of perfusion scintigrams indicated that the mean abnormal accumulation of 99mTc-MIBI in the left ventricle was 3.75 ± 0.88% (maximum 9%). Histological examination of endomyocardial samples from 19 patients with persistent AF verified myocarditis in 4 (21%) patients and myocardial sclerosis concurrent with other abnormalities in 15 (78.9%) patients.
Conclusion: Latent lymphocytic or polymorphic cellular myocarditis of viral etiology is a cause of idiopathic AF in 20% of the cases. 99mTc-pyrphotech scintigraphy may be one of the primary noninvasive diagnostic techniques for the detection of myocardial inflammation in this form of arrhythmia.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.17116/terarkh2014861210-14 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Retinal detachment after acute retinal necrosis: a retrospective analysis of hospitalized patients.
Jpn J Ophthalmol
January 2025
Department of Visual Science and Ophthalmology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
Purpose: To review hospitalized patients with Acute Retinal Necrosis (ARN) and investigate factors associated with subsequent retinal detachment (RD).
Study Design: Retrospective.
Methods: The study included 40 patients (42 eyes), categorized into non-RD (23 eyes) and RD (19 eyes) groups.
Impact of hemoadsorption with CytoSorb® on meropenem and piperacillin exposure in critically ill patients in a post-CKRT setup: a single-center, retrospective data analysis.
Intensive Care Med Exp
January 2025
Freie Universität Berlin and Humboldt-Universität Zu Berlin, Department of Anesthesiology and Intensive Care Medicine, Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, Berlin, Germany.
Purpose: CytoSorb® (CS) adsorbent is a hemoadsorption filter for extracorporeal blood purification often integrated into continuous kidney replacement therapy (CKRT). It is primarily used in critically ill patients with sepsis and related conditions, including cytokine storms and systemic inflammatory responses. Up to now, there is no evidence nor recommendation for the use of CS filters in sepsis (22).
View Article and Find Full Text PDFModulation of Intestinal Inflammation and Protection of Dopaminergic Neurons in Parkinson's Disease Mice through a Probiotic Formulation Targeting NLRP3 Inflammasome.
J Neuroimmune Pharmacol
January 2025
Laboratory Medicine Center, Department of Clinical Laboratory, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, PR China.
Emerging evidence highlights the significance of peripheral inflammation in the pathogenesis of Parkinson's disease (PD) and suggests the gut as a viable therapeutic target. This study aimed to explore the neuroprotective effects of the probiotic formulation VSL#3 and its underlying mechanism in a PD mouse model induced by MPTP. Following MPTP administration, the striatal levels of dopamine and its metabolites, as along with the survival rate of dopaminergic neurons in the substantia nigra, were significantly reduced in PD mice.
View Article and Find Full Text PDFComparative study between fractional CO laser (10,600 nm) and microneedling in treatment of morphea: dermoscopic and histopathological evaluation.
Arch Dermatol Res
January 2025
Dermatology and Venereology Department, Faculty of Medicine for Girls, Al-Azhar University, Cairo, Egypt.
Morphea is a chronic inflammatory fibrosing disorder. Since fibrosis is the hallmark of both scars and morphea, our attention was raised for the possible use of Fractional Ablative CO lasers and microneedling as treatment modalities for morphea. To compare the efficacy and safety of Fractional Ablative CO lasers and microneedling in the treatment of morphea.
View Article and Find Full Text PDF[Assessment of corticosteroid use as a marker of quality-of-care in the management of inflammatory bowel disease].
Rev Gastroenterol Peru
January 2025
Servicio de Gastroenterología, Hospital Clínico de la Universidad de Chile, Universidad de Chile, Santiago, Chile.
Introduction: Despite advancements in therapeutic strategies, corticosteroids continue to play a role in inducing remission in Inflammatory Bowel Disease (IBD). Unfortunately, these drugs are often misused.
Objectives: To assess the dose and duration of corticosteroid therapy,and the subsequent change in treatment among patients with IBD.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!