30 results match your criteria df-4 lead

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Lifestyle and Depression in Urban Elderly of Selected District of Bangladesh.

Mymensingh Med J 2020 Jan;29(1):177-182

Dr Most Sultana Bilkis, Lecturer, Department of Community Medicine, Rangpur Medical College, Rangpur, Bangladesh; E-mail:

Global population is ageing and Bangladesh has one of the fastest growing ageing populations in this region. Growth in the elderly population relative to other age groups challenges existing health services, family relationships and social security. Combined with this, depression has become a major mental health problem for elderly people especially for urban elderly for nuclear family norm in urban areas. Read More

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January 2020

Spinal Tumors and Tumor-like Masses: Relevance of Initial Imaging, Karnofsky Performance Status, Age, Location, and Cord Edema.

J Clin Imaging Sci 2019 24;9:21. Epub 2019 May 24.

Department of Radiotherapy, MLN Medical College, Allahabad, Uttar Pradesh, India.

Objective: The aim of this study is to know the relevance of initial imaging, Karnofsky performance status,age,location and cord edema for future score development for radiologists.

Methods: The present study was carried out on total of 32 patients who visited SRN Hospital and Kriti scanning centre between August 2009 to February 2019. General and systemic examination was done. Read More

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Long-term performance and lead failure analysis of the Durata defibrillation lead compared to its previous model, the recalled Riata defibrillation lead.

J Cardiovasc Electrophysiol 2019 10 1;30(10):2012-2019. Epub 2019 Aug 1.

Klinikum Ludwigshafen, Medizinische Klinik B, Ludwigshafen, Germany.

Introduction: Data on long-term durability of St Jude Medical Durata defibrillation leads compared to its previous model, the St Jude Medical Riata leads in clinical practice are missing. Aim of the study was to analyze the long-term performance of the Durata defibrillation leads compared to the Riata leads in clinical practice.

Methods And Results: A total of 1407 consecutive patients of a prospective single-centre implantable cardioverter defibrillator (ICD)-registry were analyzed who underwent ICD implantation with a Durata (n = 913) or Riata (n = 494) ICD lead between 2002 and 2017. Read More

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October 2019

Is ventricular sensing always right, when it is left?

Clin Cardiol 2018 Sep 21;41(9):1238-1245. Epub 2018 Sep 21.

Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy.

Background: Ventricular sensing in transvenous cardiac implantable electronic devices (CIEDs) occurs conventionally from the right ventricular (RV) channel, though it evolved from epicardial sensing both in pacemakers and implantable cardioverter-defibrillators (ICDs).

Hypothesis: The objective of this study was to observe the reliability of left ventricular (LV) sensing by transvenous leads placed in coronary veins.

Methods: LV leads were used for sensing and arrhythmia detection in clinical situations where placement of an RV lead across the tricuspid valve was either not preferred or not feasible, or RV signal was unsuitable for arrhythmia detection, or in the event of sensing failure of an RV lead under advisory in cardiac resynchronization therapy defibrillator (CRTD) recipients. Read More

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September 2018

What physicians do in case of a failure of the pace-sense part of a defibrillation lead : Survey in Germany, Austria and Switzerland.

Herz 2020 Jun 27;45(4):362-368. Epub 2018 Jul 27.

Department of Cardiology, Charité-Universitaetsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany.

Background: The possible treatment strategies for defects of the pace-sense (P/S) part of a defibrillation lead are either implantation of a new high-voltage (HV)-P/S lead, with or without extraction of the malfunctioning lead, or implantation of a P/S lead.

Methods: We conducted a Web-based survey across cardiac implantable electronic device (CIED) centers to investigate their procedural practice and decision-making process in cases of failure of the P/S portion of defibrillation leads. In particular, we focused on the question of whether the integrity of the HV circuit is confirmed by a test shock before decision-making. Read More

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Clinical performance of different DF-4 implantable cardioverter defibrillator leads.

Pacing Clin Electrophysiol 2018 Jun 1. Epub 2018 Jun 1.

Department of Cardiology, Institut universitaire de cardiologie et pneumologie de Québec, Quebec, QC, Canada.

Introduction: Implantable cardioverter-defibrillator (ICD) DF-4 connectors have been introduced to facilitate defibrillator lead connection and to reduce the size of device header. There are limited data regarding the overall performance of those leads and no comparison between different ICD DF-4 leads.

Methods: This is a cohort study of consecutive patients implanted with ICD DF-4 lead system at one University Centre between October 2010 and February 2015. Read More

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Does mosquito mass-rearing produce an inferior mosquito?

Malar J 2017 09 7;16(1):357. Epub 2017 Sep 7.

Insect Pest Control Laboratory, Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture, Vienna, Austria.

Background: The success of the sterile insect technique depends, among other things, on continuous releases of sexually competitive sterile males within the target area. Several factors (including high rearing density and physical manipulation, such as larvae and pupae separation) can influence the quality of males produced in mass-rearing facilities. The different steps in mass production in the laboratory may modify the behaviour of mosquitoes, directly or through loss of natural characters as a result of adaptation to lab rearing, and lead to the competitiveness of sterile male being reduced. Read More

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September 2017

Gender Differences in Concussion Reporting Among High School Athletes.

Sports Health 2016 Jul 27;8(4):359-63. Epub 2016 May 27.

Ben Hogan Sports Medicine, Arlington, TX.

Background: An athlete's lack of concussion knowledge could lead to significant underreporting and injury mismanagement. To provide more effective management strategies of concussions in adolescent athletes, further examination of reporting behaviors is of critical importance.

Hypothesis: The hypotheses for this study were as follows: (1) Girls are more likely to report concussion, (2) girls are more likely to report future concussions after an educational intervention, and (3) a difference in rationale for not reporting concussion will be found between sexes. Read More

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Acute transient non-physiological over-sensing in the ventricle with a DF4 lead.

Indian Pacing Electrophysiol J 2015 Jul-Aug;15(4):216-9. Epub 2015 Oct 19.

Princess Alexandra Hospital, Department of Cardiology, University of Queensland, Department of Medicine, Brisbane, Australia.

The DF-4 is a new defibrillator lead technology. We present two cases of non-physiological transient ventricular over-sensing in patients who underwent implantation of an ICD for secondary prevention. Case 1 had ventricular over-sensing during pacing threshold evaluation post defibrillation testing while Case 2 had the lead integrity alert triggered immediately post discharge with transient over-sensing. Read More

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The influence of frontline manager job strain on burnout, commitment and turnover intention: a cross-sectional study.

Int J Nurs Stud 2015 Dec 12;52(12):1824-33. Epub 2015 Sep 12.

Human Resource Optimization, Arthur Labatt Family School of Nursing, The University of Western Ontario, Room H3A, Health Sciences Addition, London, Ontario N6A 5C1, Canada. Electronic address:

Background: The frontline clinical manager role in healthcare is pivotal to the development of safe and healthy working conditions and optimal staff and patient care outcomes. However, in today's dynamic healthcare organizations managers face constant job demands from wider spans of control and complex role responsibilities but may not have adequate decisional authority to support effective work performance resulting in unnecessary job strain. Prolonged job strain can lead to burnout, health complaints, and increased turnover intention. Read More

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December 2015

Fracture of DF-4 implantable cardioverter defibrillator lead in a pediatric patient.

Ann Pediatr Cardiol 2015 May-Aug;8(2):174-5

Pacing and Electrophysiology Division, Prince Sultan Cardiac Center, Riyadh, Saudi Arabia. E-mail:

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Some pathophysiological insights into ovarian infestation by Myxobolus sp. (Myxozoa: Myxosporea) in Clarias gariepinus (Clariids: Silurids) from Bénin (West Africa).

Parasitol Res 2015 Aug 9;114(8):2941-9. Epub 2015 May 9.

Département de Physiologie Animale, Faculté des Sciences et Techniques, Université d'Abomey-Calavi, 01 BP 526, Cotonou, Bénin,

Mature female specimens of the catfish Clarias gariepinus originating from Ouémé River (Benin) were investigated into ovarian myxozoan parasites. Spores of Myxobolus sp. (Myxozoa: Myxosporea) were found encrusted in the whitish color oocytes which present fat dot aspect in the gonads. Read More

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Metazoan parasite communities of catfishes (Teleostei: Siluridae) in Benin (West Africa).

Parasitol Res 2014 Nov 10;113(11):3973-83. Epub 2014 Aug 10.

Département de Zoologie, Faculté des Sciences et Techniques, Université d'Abomey-Calavi, 01 BP 526, Cotonou, Bénin,

The need for more precise information on the effect of dry season on fish parasite communities in Benin lead us to undergo a focus during this season in one of the major sites of collection fry by fish farmers.Metazoan parasites were then inventoried in 166 specimens of catfishes which constituted of C larias gariepinus, Clarias ebriensis, Synodontis schall, Synodontis nigrita, and Chrysichthys nigrodigitatus (Teleostei: Siluridae). Those fishes were collected from fishermen of Agonlin-Lowé at the side of Oueme River in south Benin from November 2011 to March 2012. Read More

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November 2014

A Novel Solution for the High Defibrillation Threshold in Patients with a DF-4 Lead: Adding a High Voltage Adaptor/Splitter.

Indian Pacing Electrophysiol J 2014 May 25;14(3):152-6. Epub 2014 May 25.

Department of Internal Medicine, University of New Mexico School of Medicine, Albuquerque, NM.

A high defibrillation threshold occurs in approximately 6% of implants. The defibrillation threshold can be improved by addition of a defibrillation lead. However, the DF-4 high energy ICD header precludes the addition of a defibrillation lead. Read More

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DF-4 Lead Connector: Innovative Technology, Unexpected Problems and Novel Solutions.

Indian Pacing Electrophysiol J 2014 May 25;14(3):108-11. Epub 2014 May 25.

Senior Consultant Cardiology, Medanta-The Medicity, Gurgaon, Delhi- NCR, Haryana, India.

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Association between polymorphisms at promoters of XRCC5 and XRCC6 genes and risk of breast cancer.

Med Oncol 2014 Apr 11;31(4):885. Epub 2014 Mar 11.

Department of Biology, College of Sciences, Shiraz University, 71454, Shiraz, Iran.

Variation in DNA repair genes is one of the mechanisms that may lead to variation in DNA repair capacity. Ku, a heterodimeric DNA-binding complex, is directly involved in repair of DNA double-strand breaks. Ku consists of two subunits, Ku70 and Ku80, which are encoded by the XRCC6 and XRCC5 genes, respectively. Read More

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First clinical experience with the new four-pole standard connector for high-voltage ICD leads. Early results of a multicenter comparison with conventional implant outcomes.

J Interv Card Electrophysiol 2013 Oct 3;38(1):11-8. Epub 2013 Jul 3.

Department of Internal Medicine, Division of Cardiology, University of Rome "Tor Vergata", Viale Oxford, 81, 00133, Rome, Italy,

Purpose: A new four-pole connector system (DF-4) for transvenous high-voltage implantable cardioverter defibrillators (ICD) is currently available in clinical practice. However, no clinical data demonstrating the safety and effectiveness of this complex electromechanical design is available. This study aims to test the safety and effectiveness of this newly designed system compared to the conventional DF-1 leads. Read More

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October 2013

Failure of a spliced DF-4 ICD lead.

Heart Rhythm 2013 Dec 15;10(12):1829. Epub 2013 Jun 15.

CHU Grenoble, La Tronche, France. Electronic address:

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December 2013

Investigation the quality of life and its relation with clinical and demographic characteristics in women with breast cancer under chemotherapy.

Int J Prev Med 2012 Dec;3(12):853-9

Department of Adult Health Nursing, School of Nursing and Midwifery, Isfahan University of Medical Sciences, Isfahan, Iran.

Background: This study was performed to examine quality of life's dimensions and its relationship with some clinical and demographic characteristics on women with breast cancer under chemotherapy referred to the oncology hospital, Isfahan University of medical sciences, Iran.

Methods: This Cross sectional study was conducted among 330 a descriptive-analytic one breast cancer patients with simple sampling methodology. Data collection instrument included a questionnaire contains 2 parts (clinical and demographic characteristics information and version 2. Read More

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December 2012

Abrasion of a DF-4 defibrillator lead.

J Cardiovasc Electrophysiol 2013 Jun 7;24(6):719. Epub 2012 Dec 7.

Section of Cardiac Electrophysiology, Division of Cardiology, Johns Hopkins Hospital, 600 N. Wolfe Street,Baltimore, MD 21287, USA.

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Pontomedullary lacerations in pedestrians: an autopsy study.

Med Sci Law 2012 Apr 30;52(2):107-11. Epub 2012 Jan 30.

University of Belgrade, Belgrade, Serbia.

It is common that injuries to the head are among the most frequent injuries found in pedestrian accidents, and can constitute a serious, if not fatal, threat. Brainstem lesions have only occasionally been reported in pedestrian injuries. The aim of this study has been to determine the frequency of brainstem pontomedullary lacerations (PMLs) among fatally injured pedestrians, the frequency of concomitant cranial, facial and cervical spine injuries in such cases, as well as to establish their possible underlying mechanism. Read More

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Introduction of new industry standards for cardiac implantable electronic devices: balancing benefits and unexpected risks.

Europace 2012 Aug 1;14(8):1081-6. Epub 2012 Mar 1.

Department of Cardiology, The University Hospital of Basel, Basel, Switzerland.

The DF-4 connector is a novel industry standard for the connection of a defibrillator lead to the generator. It aims at reducing the bulk created by two or three pins at the proximal end of the defibrillator lead and its corresponding ports at the header of the device. Having only one connection port between the lead and the device reduces the material in the pocket, the risk of lead-to-port mismatch, may lower the risk of lead abrasion, and probably makes the implantation procedure a little easier since only one set screw is required. Read More

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Limitations of the DF-4 defibrillator connector necessitating device removal.

Pacing Clin Electrophysiol 2012 Jan 17;35(1):e24-6. Epub 2010 Aug 17.

Oklahoma Heart Institute, Cardiac Electrophysiology, Tulsa, Oklahoma 74104, USA.

The DF-4 implantable defibrillator connector was recently released for clinical practice. This connector facilitates lead to device connection, reduces bulk in the device pocket, and eliminates the risk of incorrect device connection. Unfortunately, new technology often introduces new challenges. Read More

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January 2012

Analgesia and other causes of amnesia that mimic post-traumatic amnesia (PTA): a cohort study.

J Neuropsychol 2010 Sep 1;4(Pt 2):231-6. Epub 2010 Feb 1.

St James's University Hospital, Leeds, UK.

Objective: This study explores the possibility that a post-traumatic amnesia (PTA) like phenomenon is caused by the administration of drugs in hospital following injury and that this may be observed in patients who have not suffered a traumatic brain injury (TBI). This work also explored the possibility for an additional contribution to this phenomenon of demographic and psychological variables.

Method: Sixty-three orthopaedic patients with no evidence of brain injury were recruited to a two-phase study. Read More

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September 2010

Identification of patient information corruption in the intensive care unit: using a scoring tool to direct quality improvements in handover.

Crit Care Med 2009 Nov;37(11):2905-12

Department of Intensive Care Medicine, Mater Misericordiae Hospital, Dublin, Ireland.

Objective: To use a handover assessment tool for identifying patient information corruption and objectively evaluating interventions designed to reduce handover errors and improve medical decision making. The continuous monitoring, intervention, and evaluation of the patient in modern intensive care unit practice generates large quantities of information, the platform on which medical decisions are made. Information corruption, defined as errors of distortion/omission compared with the medical record, may result in medical judgment errors. Read More

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November 2009

Determination of potential cellular proliferation in the odontogenic epithelia of the dental follicle of the asymptomatic impacted third molars.

J Oral Maxillofac Surg 2008 Oct;66(10):2004-11

Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, University of Yeditepe, Istanbul, Turkey.

Purpose: The aim of this study is to determine the proliferative potentials of dental follicles (DF) of radiographically asymptomatic impacted third molar teeth by using Ki-67 and mini-chromosome maintenance protein 2 (MCM-2) proliferation markers, and to discuss whether there is any necessity for the removal of all impacted third molars by detecting the potential of the developing cysts and tumors of its DF.

Materials And Methods: This study involved 59 DF of 54 patients referred for clinically and radiographically asymptomatic lower impacted third molars. Thirteen healthy gingiva tissues obtained during the impacted third molar operation in 13 patients served as a control group. Read More

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October 2008

Health professional and consumer views on involving breast cancer patients in the multidisciplinary discussion of their disease and treatment plan.

Cancer 2007 Nov;110(9):1937-44

School of Psychology, University of Sydney, Sydney, New South Wales, Australia.

Background: The aim was to obtain the views of health professionals and patients about the concept of involving breast cancer patients in the multidisciplinary (MD) treatment planning meeting.

Methods: Breast cancer surgeons, nurses, oncologists, and patient advocates completed a mailed questionnaire.

Results: The majority of breast cancer health professionals and patient advocates support shared decision-making (58%-62%). Read More

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November 2007

Effect of Bio-Oss on osseointegration of dental implants surrounded by circumferential bone defects of different dimensions: an experimental study in the dog.

Clin Oral Implants Res 2007 Jun 13;18(3):304-10. Epub 2007 Feb 13.

Department of Periodontology, Dublin Dental Hospital, Dublin, Ireland.

Objectives: This study was designed to evaluate the effect of gap width and graft placement on bone healing around implants placed in simulated extraction sockets of various widths in four Labrador dogs.

Materials And Methods: Five Osseotite implants per dog were placed in the mandible of four dogs. Two implants were inserted into sites with a 2. Read More

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