Search results for "pacemaker"

showing 10 items of 37 documents

Incidental finding of migrated pacing lead fragment into pulmonary artery detected with CT

2013

This case shows a rare complication of a migrated atrial lead into the pulmonary artery incidentally detected during a comprehensive evaluation of coronary CT angiography.

MaleIncidental FindingsPacemaker Artificialmedicine.medical_specialtybusiness.industryCoronary ct angiographyCoronary Artery DiseasePulmonary ArteryElectrodes ImplantedAtrial LeadForeign-Body Migrationmedicine.arteryPulmonary arteryHumansMedicineRadiology Nuclear Medicine and imagingRadiologyTomography X-Ray ComputedCardiology and Cardiovascular MedicinebusinessComplicationLead (electronics)AgedJournal of Cardiovascular Computed Tomography
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Marshall's vein persistence: A rare and occasional finding during pacemaker implantation

2012

In adults the oblique vein of Marshall is usually absent or very thin, and it is hard to be found. In this case report we describe a case of persistence observed during pacemaker implantation.

MalePacemaker ArtificialVena Cava SuperiorSettore MED/09 - Medicina InternaHumansPhlebographyMiddle AgedAtrioventricular BlockSettore MED/11 - Malattie Dell'Apparato CardiovascolareMARSHALL’S VEIN PERSISTENCE PACEMAKER IMPLANTATION
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Impact of early (<7 days) pacemaker implantation after cardiac surgery on long‐term pacemaker dependency

2021

We aimed to investigate pacemaker dependency after at least 1 year in patients with early (7 days) implantation, compared to those who received a pacemaker ≥7 days after cardiac surgery. Secondary endpoints were length of hospital stay and in-hospital complications.Retrospective analysis of 108 consecutive patients who received a pacemaker after cardiac surgery between 06/2012 and 06/2018. Characteristics and outcomes were compared between patients with early (7 days) and late (≥7 days) implantation. Patients were followed up with evaluation of pacemaker dependency between April and June 2019. We identified predictors of dependency by logistic regression.In total, 63.9% were men, average ag…

MalePacemaker Artificialmedicine.medical_specialty030204 cardiovascular system & hematologyPacemaker implantationlaw.invention03 medical and health sciencesPostoperative Complications0302 clinical medicineRandomized controlled trialRisk FactorslawInternal medicinemedicineHumansIn patient030212 general & internal medicineCardiac Surgical ProceduresAgedRetrospective Studiesbusiness.industryGeneral MedicineLength of StayPacemaker dependencyCardiac surgeryCardiologyFemaleFrancePermanent pacemakerCardiology and Cardiovascular MedicinebusinessPacing and Clinical Electrophysiology
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Closed loop stimulation improve ejection fraction in pediatric patients with pacemaker and ventricular dysfunction

2007

Background: The aim of this prospective study was to evaluate the effect of the closed loop stimulation (CLS) on the ejection fraction in pediatric patients, affected by complete atrioventricular block (CAVB) or CAVB and sinus node dysfunction (SND), with a previously implanted pacemaker (PM) and ventricular dysfunction. The role of electrical therapy in the treatment of pediatric patients with congenital atrioventricular (AV) blocks has been shown. Conventional right ventricular pacing seems to affect ventricular function. Up to now, the feasibility and the long-term results of biventricular pacing in pediatric patients were not entirely clear. Methods: In eight pediatric patients with a p…

MalePacemaker Artificialmedicine.medical_specialtyClosed loop stimulationCLs upper limitsInternal medicineVentricular DysfunctionmedicineHumansProspective StudiesChildProspective cohort studyEjection fractionVentricular functionbusiness.industryCardiac Pacing ArtificialInfantStroke VolumeGeneral MedicineStroke volumeVentricular pacingmedicine.diseaseHeart BlockChild PreschoolCardiologyFemaleCardiology and Cardiovascular MedicinebusinessAtrioventricular block
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Is there a right place to pace the right ventricle? Evaluation of apical and septal positions in a pacemaker population: Study protocol for a prospec…

2014

Abstract Introduction The main objective of research in pacemaker therapy has been to provide the best physiologic way to pace the heart. Despite the good results provided by right ventricular pacing minimization and by biventricular pacing in specific subsets of heart failure patients, these options present many limitations for standard pacemaker recipients. In these patients, pacing the right ventricle at alternative sites could result in a lower degree of left intraventricular dyssynchrony. Despite the lack of strong evidence and the difficulty in placing and accurately classifying the final lead position, pacing at alternative right ventricular sites seems to have become a standard proc…

MalePacemaker Artificialmedicine.medical_specialtyHeart Ventriclesmedicine.medical_treatmentPopulationCardiac resynchronization therapySTUDY DESIGNSeverity of Illness IndexInternal medicinePACEMAKERmedicineHumansSingle-Blind MethodPharmacology (medical)Prospective StudieseducationVentricular dyssynchronyHeart Failureeducation.field_of_studyEjection fractionDYSSYNCHRONYbusiness.industryGeneral Medicinemedicine.diseaseImplantable cardioverter-defibrillatorHospitalizationmedicine.anatomical_structureEchocardiographyResearch DesignVentriclePACEMAKER; STUDY DESIGN; DYSSYNCHRONYHeart failureQuality of LifeCardiologyEnd-diastolic volumeFemalebusinessContemporary Clinical Trials
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First-degree atrioventricular block and pseudopacemaker syndrome

2013

MalePacemaker Artificialmedicine.medical_specialtySystoleVena Cava InferiorInferior vena cavaVentricular Function LeftHeart RateInternal medicinemedicineHumansCardiac OutputAtrioventricular BlockAged 80 and overBloc atrioventriculaire du premier degrébusiness.industryCardiac Pacing ArtificialHemodynamicsSynchronisme atrioventriculaireGeneral MedicineFirst degree AV blockmedicine.diseaseEchocardiography DopplerPacemakerFirst-degree AV blockStimulateur cardiaqueTreatment Outcomemedicine.veinRegional Blood FlowFirst-degree atrioventricular blockElectrocardiography AmbulatoryCardiologyAV synchronyCardiology and Cardiovascular MedicinebusinessAtrioventricular blockArchives of Cardiovascular Diseases
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Is atrial sensing of ventricular far-field signals important in single-lead VDD pacing?

1998

UNLABELLED In single-lead VDD pacing the atrial sensitivity frequently is programmed to sensitive values. Atrial sensing of ventricular far-field signals should be reduced by differential atrial sensing. The aim of the study was to evaluate the effectiveness of this approach. METHODS The study included 10 patients with a single-lead VDD pacemaker (Thera 8948, Lead 5032). The atrial sensitivity was set to its most sensitive value of 0.18 mV and the telemetered intraatrial EGM was continuously recorded. After atrial tracked ventricular pacing, VVI pacing was performed with pacing rates from 100 to 160 beats/min in steps of 10 beats/min and up to 165 beats/min. The peak-to-peak amplitudes of P…

Malemedicine.medical_specialtyPacemaker ArtificialHeart blockAtrial sensingInternal medicinemedicineHumansTelemetrySinus rhythmcardiovascular diseasesAgedbusiness.industryRate dependentCardiac Pacing ArtificialGeneral MedicineVentricular pacingmedicine.diseaseElectrodes ImplantedHeart BlockSingle leadcardiovascular systemVdd pacingCardiologyFemaleCardiology and Cardiovascular MedicinebusinessPacing and clinical electrophysiology : PACE
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Permanent Pacemaker Lead Insertion Connected to an External Pacemaker Generator for Temporary Pacing After Transcatheter Aortic Valve Implantation.

2019

Abstract Background Outcomes after transcatheter aortic valve implantation (TAVI) have been demonstrated to be at least equivalent in the short term compared to surgical valve implantation (SAVI). However, Conduction abnormalities are more common after TAVI than SAVI and the need for permanent pacemaker implantation is more common after TAVI with the currently commercially available self-expanding valves than after SAVI. Temporary pacemaker implantation may be associated with inability to ambulate, lead migration or perforation and infection. Depending on the monitoring system, some arrhythmias may not be detected. We examined the feasibility and safety of permanent pacemaker lead implantat…

Malemedicine.medical_specialtyPacemaker ArtificialPerforation (oil well)Context (language use)030204 cardiovascular system & hematologySingle CenterPericardial effusionRisk AssessmentTranscatheter Aortic Valve Replacement03 medical and health sciences0302 clinical medicineElectric Power SuppliesRisk FactorsmedicineHumans030212 general & internal medicineLead (electronics)AgedRetrospective StudiesAged 80 and overbusiness.industryCardiac Pacing ArtificialAtrial fibrillationArrhythmias CardiacGeneral MedicineEquipment Designmedicine.diseaseSurgeryTreatment OutcomeFeasibility StudiesFemalePatient SafetyPermanent pacemakerCardiology and Cardiovascular MedicinebusinessAtrioventricular blockCardiovascular revascularization medicine : including molecular interventions
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Paroxysmal atrial fibrillation and high degree AV block: use of single-lead VDDR pacing with mode switching.

1998

Dual chamber rate responsive pacing incorporating a mode switching option is increasingly used in patients with chronic paroxysmal atrial fibrillation and high degree AV block. Single-lead VDDR pacemakers have rarely used for this indication. The purpose of this study was to determine their reliability of atrial sensing during atrial fibrillation, the percentage of atrial synchronous ventricular pacing, and the behavior of the sinus rate outside the phases of atrial fibrillation. We studied ten patients with a single-lead VDDR pacemaker implanted for this indication. Follow-up visits were performed at predischarge and after 1, 3, 6, 12, 18, and 24 months. During the mean follow-up period of…

Malemedicine.medical_specialtyPacemaker ArtificialTime FactorsParoxysmal atrial fibrillationVentricular stimulationInternal medicineAtrial FibrillationMedicineHumansSinus rhythmIn patientcardiovascular diseasesbusiness.industryP waveCardiac Pacing ArtificialAtrial fibrillationGeneral MedicineMiddle Agedmedicine.diseaseHeart BlockSingle leadAnesthesiacardiovascular systemCardiologyMode switchingFemaleCardiology and Cardiovascular MedicinebusinessFollow-Up StudiesPacing and clinical electrophysiology : PACE
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Pacemaker-Based Cardiac Neuromodulation Therapy in Patients With Hypertension: A Pilot Study.

2021

Background In prior unblinded studies, cardiac neuromodulation therapy (CNT) employing a sequence of variably timed short and longer atrioventricular intervals yielded sustained reductions of systolic blood pressure (SBP) in patients with hypertension. The effects of CNT on SBP were investigated in this double‐blind randomized pilot study. Methods and Results Eligible patients had daytime ambulatory SBP (aSBP) ≥130 mm Hg and office SBP ≥140 mm Hg despite taking ≥1 antihypertensive medication, and an indication for a dual‐chamber pacemaker. Patients underwent Moderato device implantation, which was programmed as a standard pacemaker during a 1‐month run‐in phase. Patients whose daytime aSBP…

Malemedicine.medical_specialtyPacemaker ArtificialTime Factorshypertensionatrioventricular interval ; hypertension ; left ventricular function ; pacemakerBlood PressurePilot ProjectsArrhythmiasVentricular Function LeftDouble-Blind MethodHeart RateInternal medicineMedicineHumansIn patientProspective StudiesSequence (medicine)AgedOriginal ResearchAged 80 and overbusiness.industryCardiac Pacing ArtificialEditorialsHeartNeuromodulation (medicine)EuropeTreatment OutcomeEditorialCardiologyFemaleCardiology and Cardiovascular Medicinebusinesshigh blood pressureJournal of the American Heart Association
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