Search Results
Results 401 - 450 of 1715
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Cantu Giulio - - 2011
The purpose of our study was to identify the role of work exposure to organic dusts in patients with malignant paranasal sinus tumors. We analyzed all patients surgically treated for a malignant paranasal sinus tumor at our institution between 1987 and 2006. All patients were specifically asked about their occupational ...
Huang Ming-Jhe - - 2011
In patients who have antibiotic-loaded cement hip spacers in the interim period, the correct diagnosis of infection eradication is the major determinant before reimplantation arthroplasty. Diagnosis is usually based on clinical findings and serum C-reactive protein (CRP) levels. However, diagnosis can be challenging when the clinical findings are normal but ...
Amirian Ilda - - 2011
An unknown number of patients have had male to female gender transformation. Various surgical techniques have been employed to construct the neovagina. The more traditional techniques include inverted penile grafts and vascular pedicle grafts, but also the small bowel and sigmoid colon have been used. In this case, the authors ...
Wegmüller Barbara - - 2011
We report on a 43-year-old patient undergoing a hysteroscopic myomectomy. After 80 minutes of operation, the patient developed laryngeal edema, requiring emergency tracheostomy. Hyponatremia (serum sodium 78 mmoL/L) indicated an irrigation fluid absorption. The patient developed shock, acute respiratory distress syndrome, acute renal failure, and diffuse intravascular coagulopathy. Resuscitation including continuous ...
González Eduardo J - - 2011
Esophageal variceal bleeding is a frequent complication in patients with chronic liver disease. There is no published study that evaluates the management of this complication in Puerto Rico. Our study describes the management of patients with esophageal varices admitted to the emergency room of the Puerto Rico Medical Center from ...
Fenollar Florence - - 2011
Tropheryma whipplei, the agent of Whipple's disease, causes localised infections in the absence of histological digestive involvement. Our objective is to describe T. whipplei encephalitis. We first diagnosed a patient presenting dementia and obesity whose brain biopsy and cerebrospinal fluid specimens contained T. whipplei DNA and who responded dramatically to ...
Sahraian M A - - 2011
Multiple sclerosis (MS) is a progressive immune-mediated neurodegenerative disease of human central nervous system (CNS), which causes irreversible disability in young adults. The cause and cure for MS remain unknown. Pathophysiology of MS includes two arms: inflammatory demyelination and neurodegeneration. The inflammatory demyelination of MS which is mainly promoted by ...
Robert Stefanie Christina SC ICU, Barts and the London NHS Trust, London, UK. - - 2011
A 74-year-old patient presented with constitutional symptoms and was found to have acute kidney injury. He was known to have a prosthetic aortic valve. He was febrile with splenomegaly and vasculitic lesions on both hands. Nephritic screen revealed strongly positive cytoplasmic-antineutrophil cytoplasmic antibodies (c-ANCA). Differential diagnosis thus included a small ...
Chen Ming Long - - 2010
the aim of this study was to delineate the electroanatomic substrates of right-sided free wall (RFW) accessory pathways (APs) that were refractory to conventional catheter ablation utilizing 3-dimensional (3-D) mapping. eleven patients with RFW APs that failed initial conventional catheter ablation(s) by a mean of 1.9 ± 0.5 attempts were ...
Roten Laurent - - 2010
Atrioventricular (AV) conduction impairment is well described after surgical aortic valve replacement, but little is known in patients undergoing transcatheter aortic valve implantation (TAVI). We assessed AV conduction and need for a permanent pacemaker in patients undergoing TAVI with the Medtronic CoreValve Revalving System (MCRS) or the Edwards Sapien Valve ...
Cassagneau Romain - - 2011
Introduction:  Cardiac pacemakers with preerosion are often reimplanted. Preerosion may be caused by an evolving local infectious process affecting the entire pacing system or by mechanical migration of the device causing ischemic necrosis of the skin tissues. We examined the long-term outcome of 33 patients who underwent pocket or scar ...
Yang Yanfei - - 2010
Intra-isthmus reentry (IIR) is a circuit within the cavotricuspid isthmus (CTI). The purpose of this study is to prospectively define the electrogram and surface ECG characteristics of IIR, and its clinical implications. Fourteen patients underwent electrophysiological studies and were found to have IIR. Detailed electrogram mapping of the CTI was ...
Biffi Mauro - - 2011
We studied long-term right ventricular (RV) pacing threshold (RVPT) behavior in patients consecutively implanted with pacemakers capable of automatic output reprogramming tracked by automatic RV threshold measurement (automatic verification of capture [AVC]). All the patients had state-of-the art steroid-eluting bipolar pacing leads and were RV-paced by an AVC algorithm from ...
Chen Hung-Yuan - - 2010
BACKGROUND: Fetuin A, a predictor of mortality in dialysis patients, is associated with vascular calcification and atherosclerosis in hemodialysis (HD) patients. Whether it predicts arteriovenous (AV) access patency is unknown. This study aimed to investigate the association between fetuin A and AV access patency in HD patients. STUDY DESIGN: Prospective ...
Sternick Eduardo Back - - 2011
The ECG, clinical, and electrophysiologic profiles of patients with a fasciculoventricular pathway are well described. Fasciculoventricular pathways occurring in the setting of glycogen storage cardiomyopathy possess unique features. The purpose of this study was to compare the clinical, ECG, and electrophysiologic characteristics of patients with a fasciculoventricular pathway, with or ...
Chen Gang - - 2011
The ectopic foci originating from superior vena cava (SVC) may act as triggers in the occurrence and perpetuation of atrial fibrillation (AF). Unfortunately, the SVC isolation may result in potential dysfunction of sinus node. Furthermore, little is known about the occurrence of sinus node injury complicated by the SVC isolation. ...
Modi Simon - - 2012
This is an interesting report of a supraventricular tachycardia in a paced patient with intermittent atrioventricular nodal block. Only electrophysiology testing revealed the correct diagnosis. Images explain how pacemaker timing cycles and refractory periods can confuse an otherwise straightforward diagnosis. (PACE 2010; 1-3).
Tonet Joelci - - 2010
The efficacy of radiofrequency (RF) ablation of an uncommon coronary sinus (CS)-dependent atrial flutter (AFL) was evaluated using conventional electrophysiological criteria in a highly selected subset of patients with typical and atypical AFL. Fourteen patients with atrial flutter (11 males, mean age 69 ± 9 years) without previous right or left atrial RF ...
Niksch Alisa - - 2010
Remifentanil is commonly used during anesthesia in pediatric electrophysiologic studies (EPS). The purpose of this study is to determine the effects of remifentanil on the cardiac electrophysiologic properties of children undergoing ablation of supraventricular tachycardia (SVT). A prospective study was performed in patients undergoing EPS before ablation of SVT. Each ...
Vassilikos Vassilios P - - 2010
Radiofrequency catheter ablation (RFA) is an effective treatment of arrhythmias. However, patients often remain symptomatic after the procedure. We aimed to assess the arrhythmia recurrence after successful RFA in relation to patients' symptoms using transtelephonic loop recorders. Thirty-six consecutive patients (age 50 +/- 14 years, 17 males/19 females) were enrolled ...
Giazitzoglou Eleftherios - - 2010
Slow-pathway ablation or modification eliminates typical atrioventricular nodal re-entrant tachycardia (AVNRT) but with a 1% risk of AV block. We report our experience from a series of consecutive patients with typical AVNRT who were ablated in our unit. Consecutive patients (n=227), aged 22 to 56 years, 172 women, with slow-fast ...
Padeletti Margherita - - 2010
Sleep disordered breathing (SDB), a common condition among patients with permanent pacemaker (PM), is associated with greater incidence of cardiac arrhythmias. Scarce availability of sleep laboratories and the high costs of nocturnal-attended polysomnography limit the routine screening of patients with PM for SDB. We investigated whether a novel PM that ...
Kanjwal Khalil - - 2010
Autonomic dysfunction presenting as inappropriate sinus tachycardia has been reported to occur following slow pathway ablation for atrioventricular node tachycardia. We report on a series of patients who developed new onset postural orthostatic tachycardia syndrome (POTS) following successful radiofrequency ablation of atrioventricular nodal reentrant tachycardia (AVNRT). The study was a ...
Lichtenstein Brian J - - 2010
Permanent cardiac pacing in pediatric patients presents challenges related to small patient size, complex anatomy, electrophysiologic abnormalities, and limited access to cardiac chambers. Epicardial pacing currently remains the conventional technique for infants and patients with complex congenital heart disease. Pacemaker lead failure is the major source of failure for such ...
Nijhawan Navdeep N Section of Ophthalmology, McMaster University, Hamilton, Ontario, - - 2010
To describe the lymphatic drainage patterns of the human eyelids. Twenty-eight consenting patients who underwent unilateral eyelid surgery at McMaster University between March 2001 and July 2003 had their contralateral eyelids injected with 0.2 ml (0.250 mCi) of Tc 99 m sulphur colloid. The patients were divided into 1 of ...
Nayar Vikram V - - 2010
The infratentorial supracerebellar approach to the pineal region presents special challenges during patient positioning. The head must be flexed and the body positioned to allow an operative trajectory under the straight sinus. Image guidance is not useful during positioning because registration and navigation take place after the head is fixed ...
Zhou Yi-Feng - - 2010
Focal atrial tachycardia (AT) arising from non-coronary cusp (NCC) is very rare, and the experience in catheter ablation of this kind of tachycardia remains limited. This study describes the electrophysiologic characteristics and radiofrequency ablation of AT arising from NCC. The study population consisted of five consecutive patients (three females and ...
Nigro Gerardo - - 2010
OBJECTIVE: Atrioventricular nodal reentrant tachycardia (AVNRT) accounts for about 60% of the patients presenting with paroxysmal supraventricular tachycardia. The radiofrequency (RF) catheter ablation of the slow atrioventricular (AV) node pathway is the preferred therapeutic approach in patients with AV node reentrant tachycardia. The aim of our study was describe the ...
Kantoch Michal J - - 2010
AIMS: The study was designed to assess atrio-ventricular (AV) conduction with non-invasive methods at least 1 year after radiofrequency ablation (RFA) of the slow pathway for AV node reentry tachycardia. METHODS AND RESULTS: Medical records of all patients who underwent RFA before their 18th birthday were reviewed. Patients were brought ...
Sacher Frederic - - 2010
AIMS: Catheter ablation for Wolff-Parkinson-White syndrome (WPW) can be challenging and is associated with failure in approximately 1-5% of cases. We analysed the reasons for failure. METHODS AND RESULTS: All patients (89 patients, 28 +/- 16 years old) referred for WPW ablation after a prior failure were studied. Reasons for ...
Panas Marios - - 2010
Interatrial block is a predictor of atrial arrhythmias. Aim of the present study was to estimate the prevalence of interatrial block (IAB) in Friedreich's Ataxia (FA) compared to controls and correlate it with echocardiographic and genetic features. IAB, defined as an electrocardiographic (ECG) derived P-wave duration >120 ms, echocardiographic variables ...
Biffi Mauro - - 2010
We evaluated the impact of an algorithm for automatic right ventricular (RV) stimulation compared to fixed-output pacing (FOP) stimulation on actual pacemaker longevity over a 9-year follow-up. Prospective observation of 300 patients implanted with VDDR/DDDR pacemakers in 1999-2000 up to October 31, 2008. Sixty-one patients were paced by Autocapture pacing ...
Pintarić Hrvoje - - 2010
The aim of this prospective, non-randomized interventional study was to assess electrophysiological effects, efficacy and safety of intravenous propafenone in termination of atrioventricular nodal reentrant tachycardia (AVNRT) and orthodromic atrioventricular reentrant tachycardia (AVRT). This single-center study was carried out at Department of Cardiology, Sestre milosrdnice University Hospital in Zagreb, Croatia, ...
Delhaas Tammo - - 2010
To assess the prevalence, history, and treatment of arrhythmias, in particular preexcitation and Wolff-Parkinson-White (WPW) syndrome, in patients with Ebstein anomaly (EA) during childhood and adolescence, we performed a multicenter retrospective study of all consecutive live-born patients with EA, diagnosed, and followed by pediatric cardiologists between 1980 and 2005 in ...
Padanilam Benzy J - - 2010
BACKGROUND: Patients with left bundle branch block (LBBB) undergoing right heart catheterization can develop complete heart block (CHB) or right bundle branch block (RBBB) in response to right bundle branch (RBB) trauma. We hypothesized that LBBB patients with an initial r wave (>or=1 mm) in lead V1 have intact left ...
Liberman Leonardo - - 2010
In patients with pre-excitation, a short PR interval and a delta wave are not always clearly seen, particularly if the pre-excitation is mild. Absent septal Q waves have been used as additional evidence suggestive of pre-excitation. The purpose of the present study was to determine the incidence of normalization of ...
García-Martín E - - 2010
OBJECTIVE: To evaluate the changes over two years in the retinal nerve fibre layer (RNFL) of patients with múltiple sclerosis (MS). To compare the ability of optical coherence tomography (OCT), scanning laser polarimetry (GDx), visual evoked potentials (VEP) and visual field examination to detect axonal loss in these patients. MATERIAL ...
Blich Miry - - 2010
Current guidelines suggest the use of atrial synchronous mode (VDD) pacemakers in patients with atrioventricular (AV) block and normal sinus node function. However VDD mode is being used much less than expected. The objectives of our study were to evaluate the efficacy of VDD pacing in long-term follow-up and to ...
Satomi Kazuhiro - - 2010
Macroreentrant atrial tachycardia (AT) involving the right atrial free wall (RAFW) has been reported in patients without atriotomy. Catheter ablation of these ATs remains challenging due to the multiple morphologies of ATs with unstable reentrant circuits in some patients. The purpose of this study was to clarify the electrophysiological characteristics ...
Payne Ryan A - - 2009
We report our experience with endoscopic ablation of Hunner's lesions in women with interstitial cystitis (IC). A chart review was performed on 14 patients with IC symptoms who were identified to have bladder lesions and underwent endoscopic ablation. A Hunner's lesion was identified as an area of erythema that reproduced ...
Stiles Martin K - - 2010
INTRODUCTION: The area of the functional sinus node complex exceeds that of the anatomical sinus node; however, reasons for this discrepancy are unknown. We aimed to characterize the functional sinus node complex in health and disease with high-density simultaneous mapping. METHODS AND RESULTS: Sinus node activity was characterized in 15 ...
Quaglione Raffaele - - 2010
AIM: Aim of this retrospective study was to analyze the effect of closed-loop stimulation (CLS) and DDD pacing mode on autonomic balance, and to evaluate heart rate variability (HRV) during CLS stimulation. METHODS AND MATERIALS: Autonomic balance was estimated by a 24-hour HRV analysis of paced and spontaneous beats in ...
Erdo?an Ilkay - - 2009
Transesophageal electrophysiologic study (TEEPS) is a semi-invasive method widely used for evaluation of symptoms related to arrhythmia. In this study, we aimed to determine the accuracy of TEEPS in the diagnosis and differentiation of mechanisms of supraventricular tachycardias (SVTs) by comparing results of transesophageal and intracardiac electrophysiologic studies. We performed ...
Thaker Jay P - - 2009
BACKGROUND: Electrical devices generate electromagnetic fields that may interfere with pacemakers. Media players cause telemetry interference with pacemakers, but it is not known whether they cause direct interference with pacemakers. The purpose of this study was to examine the interaction between pacemakers and 3 different media players. METHODS: In this ...
Capulzini Lucio - - 2010
We present the case of a 49-year-old woman with atrioventricular nodal re-entrant tachycardia and a severe pectus excavatum. The patient underwent an electrophysiological study and fast pathway ablation. Fast pathway ablation was not done on purpose but accidentally, likely due to the abnormal position of the heart in the chest ...
Aliyev Farid - - 2010
We present an unusual electrocardiogram obtained from a patient with critically depleted pacemaker.
Balaji Seshadri - - 2009
BACKGROUND: The Mustard operation is a complex atrial rerouting performed in patients with transposition of the great arteries (TGA). Cavotricuspid isthmus (CTI)-dependent atrial flutter (AFL) is an important problem in these patients. While catheter ablation (CA) is successful, three-dimensional (3D) mapping is necessary to prove block at the CTI. 3D ...
Ryu C-W - - 2010
BACKGROUND AND PURPOSE: The falcine sinus has been considered as a rare variation of the venous pathway between the dural layers of the falx cerebri. The purpose of this study was to evaluate the incidence of falcine sinus and its anatomic characteristics by using CTA. MATERIALS AND METHODS: A total ...
Padi Anupama - - 2009
Peripheral and tissue eosinophilia can occur in a wide variety of disease processes that include infectious, allergic, and primary hematologic disorders, and other more rare diseases such as hypereosinophilic syndromes (HES). We describe a case of a patient with severe eosinophilia and left bundle branch block. A 21-year-old woman with ...
Rathbun Chris R CR Department of Clinical and Administrative Sciences, College of Pharmacy, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73117, USA. - - 2009
Concurrent atazanavir (ATV) and lopinavir/ritonavir (LPV/r) may be useful for patients with extensive antiretroviral resistance; however, limited information exists concerning the pharmacokinetics and safety of this combination. A parallel-arm pharmacokinetic study was conducted in HIV-infected patients (n = 10) using contemporary formulations of each agent. Intensive pharmacokinetics were conducted at ...
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