Search results for "PERSISTENT"

Multimodalities imaging in diagnosis of pericardial cyst

2015

Pericardial cysts, an uncommon benign congenital anomaly belonging to the category of mediastinal masses. Cysts are usually detected incidentally on chest radiography or echocardiography, being most patients asymptomatic. In some cases, however, symptoms and complications occur, like dyspnea, chest pain, or persistent cough. Computed tomography and magnetic resonance imaging are the imaging techniques of choice to diagnose pericardial cysts. The removal of pericardial cysts is restricted to the cases with an uncertain diagnosis or in the presence of symptoms.

Impact of direct-acting antivirals (DAAs) on cardiovascular diseases in patients with chronic hepatitis C

2021

INTRODUCTION: In the last years the Hepatitis C virus (HCV) infection was a relevant public health problem due to the large number of affected people worldwide and the impact on hepatic and extrahepatic complications. The availability of direct-acting antivirals (DAAs) and the very high rate of sustained virological response (SVR) after treatment has radically changed the course of HCV chronic infection. EVIDENCE ACQUISITION: We searched PubMed for articles published between January 1, 1995, through December 31, 2020, in English language. EVIDENCE SYNTHESIS: Robust evidence showed a close link between HCV infection and development of cardiovascular disease (CVD), as result of the atherogeni…

Inhaled nitric oxide as a rescue therapy in a preterm neonate with severe pulmonary hypertension: a case report

2018

Abstract Background Inhaled nitric oxide (iNO) has been approved for the treatment of persistent pulmonary hypertension of the newborn (PPHN) in term and near-term newborns. Its role in the management of persistent pulmonary hypertension in preterm infants is not clear. Although guidelines do not exist, some studies have shown that iNO could be used as a rescue therapy in preterm neonate with severe pulmonary hypertension. Case presentation We describe the case of a preterm neonate, born at 30 + 1 weeks of gestation, with hypoxic respiratory failure not responding to maximal conventional therapy. On the third day of life echocardiography showed severe pulmonary hypertension with right to le…

Patent Foramen Ovale and Thromboembolic Complications

2010

The foramen ovale, an atrial septal defect which is essential in the fetal circulation, remains patent through adulthood in approximately 25% of the general population and so it represents the most common persistent abnormality of fetal origin. Patent foramen ovale (PFO) allows interatrial right-to-left blood shunting during those periods of the cardiac cycle in which the right atrial pressure exceeds the left one. An increasing number of pathological manifestations of PFO has been recently identified; among these, paradoxical systemic embolism, refractory hypoxemia in patients with right ventricular myocardium infarction or severe pulmonary disease, orthostatic oxygen desaturation in the r…

Time-frequency analysis for early classification of persistent and long-standing persistent atrial fibrillation

2016

This study aimed to assess an early classification of persistent and long-standing persistent atrial fibrillation patients by means of the time-frequency analysis of the surface ECG, which would allow electrophysiologists to choose the most suitable therapeutic approach to treat this arrhythmia. 140 consecutive unselected patients suffering from atrial fibrillation conformed the study population (84 persistent and 56 long-standing persistent). After ventricular activity cancellation, time-frequency analysis of the atrial activity was performed. Then, the study of phase variations along time for those frequency bands where the average power of atrial activity is concentrated, together with t…

Ergebnisse der bilateralen Operationstechnik bei primärem Hyperparathyreoidismus

2001

AIM OF THE STUDY The surgical success rate and clinical outcome after surgery for primary hyperparathyroidism were evaluated in a prospective long-term follow-up study. PATIENTS AND METHODS 407 patients, 396 with the first manifestation, 6 with recurrent and 5 with persistent disease underwent operation from August 1, 1987 to August 15, 1999. All patients were prospectively investigated in a long-term follow-up study and underwent reexaminations at regular surveillance intervals. The postoperative course is known in 93.9% of all patients. RESULTS The prevalence of asymptomatic primary hyperparathyroidism was 5.6% in our patients. Surgical cure was obtained in 97.7% of patients after initial…

Stepwise Approach to Atrial Fibrillation Mapping and Ablation in Persistent and Long-standing Persistent Atrial Fibrillation

2019

Sonographie von Urachusanomalien im Kindesalter

1991

The sonographic appearances of urachal anomalies are illustrated by six patients with persistent urachus (n = 1), infected persistent urachus (n = 1), urachal sinus (n = 1), infected urachal cyst (n = 2) and urachal diverticulum (n = 1). The anomalies were diagnosed sonographically in every case. Symptomatic patients were treated surgically.

Analysis of inter-atrium differences in paroxysmal and persistent atrial fibrillation using principal component analysis

2007

The pathophysiological mechanisms of atrial fibrillation (AF) are not entirely clear yet, and there is no full explanation for the development and evolution of the arrhythmia. The goal of this study is to find inter-atrium differences in electrophysiological behavior between persistent and paroxysmal AF. The database analyzed contains intra-cardiac records from 14 patients with paroxysmal AF and 10 with persistent AF. Dominant frequency and sample entropy measurements showed that in the paroxysmal group there was a left-to-right gradient. These differences were enhanced after the extraction of the main components with principal component analysis. These findings may be interpreted as a poss…

Cardiovascular Magnetic Resonance Demonstrates Reversible Atrial Dysfunction After Catheter Ablation of Persistent Atrial Fibrillation

2013

Reversible Dysfunction After Persistent AF Ablation Introduction There is a paucity of data on atrial injury following ablation of persistent atrial fibrillation (AF). This study aimed at assessing reversibility of atrial dysfunction after successful persistent AF ablation using cardiovascular magnetic resonance (CMR). Methods and Results CMR was performed during sinus rhythm (SR) in 20 consecutive patients with persistent AF at baseline (BL) within 24 hours after ablation and after 6-month follow-up (FU). Catheter ablation included atrial substrate modification using the stepwise approach following pulmonary vein isolation (PVI) in order to attempt termination of persistent AF. Active left…