Publications by authors named "Marianna Gardarsdottir"

Metastatic neoplasms occurring in the nasal and paranasal sinuses are infrequent occurrences. In this study, we present one such case of a 61-year-old male patient with a known clear cell renal carcinoma presenting to us with signs and symptoms of acute sinusitis. The patient subsequently underwent CT and MRI examinations, which revealed a neoplastic mass in the right frontal sinus, which was surgically resected and was later confirmed histologically as a metastatic deposit from clear cell renal carcinoma.

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It is unknown whether obesity modifies the effect of obstructive sleep apnea (OSA) and positive airway pressure (PAP) therapy on cardiac remodeling and NT-proBNP (N-terminal pro-B-type natriuretic peptide) levels. We compared NT-proBNP and cardiac magnetic resonance imaging in adults without OSA (n=56) and nonobese (n=73; body mass index <30 kg/m) and obese (n=136; body mass index ≥30 kg/m) adults with OSA. We also investigated these traits in nonobese (n=45) and obese (n=78) participants with OSA adherent to 4 months of PAP treatment.

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Article Synopsis
  • Atrial fibrillation (AF) is linked to decreased brain volume and cognitive issues; this study aimed to see if brain blood flow improves after restoring normal heart rhythm through cardioversion.
  • A total of 44 patients participated, and while 17 experienced a recurrence of AF during the study (formulating the recurrent AF group), the remaining 27 completed measurements before and after cardioversion.
  • Results showed significant increases in brain perfusion and cerebral blood flow in patients who maintained a normal rhythm post-procedure, while those who did not see successful cardioversion showed no changes.
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Introduction: The classical pathophysiological process underlying acute coronary syndromes has been considered to be plaque rup-ture followed by platelet activation and aggregation and subsequent thrombus formation leading to myocardial ischemia and infarction. A substantial number of patients with acute coronary syndromes appear to have normal or near normal (<50% stenosis) coronary arteries on angiography. Recently, this clinical entity has been coined MINOCA (Myocardial Infarction with Non-Obstructive Coronary Arteries).

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Aims: Atrial fibrillation (AF) has been associated with cognitive impairment. Additionally, brain volume may be reduced in individuals with AF. Potential causes may include cerebral micro-embolism or reduced stroke volume due to the beat-to-beat variation in AF.

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Background: The screening of Icelandic patients clinically diagnosed with hypertrophic cardiomyopathy resulted in identification of 8 individuals from 2 families with X-linked Fabry disease (FD) caused by (α-galactosidase A gene) mutations encoding p.D322E (family A) or p.I232T (family B).

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Background: Secondary sclerosing cholangitis has clinical features similar to primary sclerosing cholangitis but originates from a known pathological entity. Secondary sclerosing cholangitis has not been investigated in patients with drug-induced liver injury.

Methods: Overall 102 patients diagnosed with drug-induced liver injury were identified and magnetic resonance cholangiopancreatography images of 25 patients were reviewed.

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Cardiac myxoma (CM) is the most common primary benign tumor of the heart, but the true age-standardized incidence rate (ASR) has remained unknown. We therefore used nationwide registries in Iceland to study CM and establish its incidence rate. This was a retrospective study involving all patients diagnosed with CM in Iceland between 1986 and 2010.

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Purpose: To characterize rounded atelectasis (RA) with dynamic contrast-enhanced MRI in the differential diagnosis of solitary peripheral pulmonary neoplasm.

Materials And Methods: Twenty-four patients with diagnostically equivocal peripheral pulmonary nodules were examined with dynamic contrast-enhanced MRI. 13 patients had a total of 16 rounded atelectases and 11 had a neoplasm.

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Apical ballooning syndrome is a cardiac syndrome typically characterized by transient focal dyskinesia or akinesia of the mid and apical regions of the left ventricle and hyperkinesia of the basal region. The symptoms and signs of the patient mimic myocardial infarction, with chest pain, electrocardiographic changes and elevation of cardiac enzymes but without significant coronary artery disease. The syndrome is frequently preceded by physical or emotional stress.

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