20 results on '"Hertting K"'
Search Results
2. 'We Can’t Get Stuck in Old Ways': Swedish Sports Club’s Integration Efforts With Children and Youth in Migration
- Author
-
Hertting Krister and Karlefors Inger
- Subjects
integration ,youth sports ,qualitative methods ,migration ,newcomers ,Sports ,GV557-1198.995 - Abstract
The last years many people have been forcibly displaced due to circumstances such as conflicts in the world, and many people have come to Sweden for shelter. It has been challenging for Swedish society to receive and guide newcomers through the resettlement process, and many organizations in civil society, such as sports clubs, have been invited to support the resettlement. However, a limited numbers of studies has drawn the attention to sports clubs experiences. Therefore the aim of the paper was enhance understanding of sports clubs’ prerequesites and experiences of integration efforts with immigrant children and youth. Ten Swedish clubs with experience of working with newcomers participated. Semi-structured interviews were conducted, and analyzed with qualitative content analysis. Two categories were identified: Struggling with sporting values and organization and Seeing integration in everyday activities. The clubs experienced that integration occurs in everyday activities, but current ideas focusing competition and rigid organization of sports constrained possibilities for integrating newcomers with no or limited former experience of club sports. The clubs experienced potential to contribute to personal development, social connectedness and enjoyment in a new society and building bridges between cultures. In conclusion, clubs cannot solve the challenges of resettlement in society but have potential to be part of larger societal networks of integration.
- Published
- 2021
- Full Text
- View/download PDF
3. 'More Practice-based Courses and Not Just a Load of Papers to Read': Youth Soccer Coaches Reflections on Coach Education Programs in Sweden
- Author
-
Hertting Krister
- Subjects
coaching ,learning ,coach education ,youth sport ,cultural learning theory ,Sports ,GV557-1198.995 - Abstract
In Sweden, the formal soccer coach education programs are divided into different levels and are also divided into youth coaching and senior coaching. This paper focuses on youth soccer coaches and their reflections on coach education programs. In the background section the Swedish context is described, as well as current research on coaches’ education and learning. The aim of the paper was to investigate youth soccer coaches’ reflections on coach education programs and to analyse their reflections by using a cultural approach to learning. The empirical material of the paper derives from a web-based questionnaire, posing questions about competence, learning and stress. The coaches were also invited to reflect on the question “how do you believe that soccer associations can educate good coaches?” There were 369 responses, and these were analysed using qualitative content analysis. Results indicated reflections about Flexibility in time, place and content, Mentorship supporting informal learning, Demanding mandatory education and emolument, Education focusing on wholeness and Education being based in practice. The conclusion was that decentralization of education and development of coaches’ contexts, abilities and motivation to critically analyse aims and contents of coach education programs are improvement areas for learning and coaching practices.
- Published
- 2019
- Full Text
- View/download PDF
4. The Youth Soccer Coaches’ Visions and Thoughts of Leader Support
- Author
-
Hertting Krister and Kostenius Catrine
- Subjects
health promotion ,coach support ,sports for all ,youth sports ,qualitative analysis ,Sports ,GV557-1198.995 - Abstract
The Objectives: The European Commission has highlighted the use of sports as an important venue for engaging citizens in health-enhancing activities, physical activity, volunteerism and active citizenship. Coaching is a central component of sports for children and youth, but there is little research on the promotion of sports coaches’ health. In the light of this gap, the aim of this paper was to elucidate youth soccer coaches’ visions and thoughts regarding leadership support from clubs and soccer associations.
- Published
- 2016
- Full Text
- View/download PDF
5. Higher education as a pathway for female immigrants' establishment and well-being in Sweden.
- Author
-
Blomberg M, Ryding J, and Hertting K
- Subjects
- Humans, Female, Sweden, Adult, Middle Aged, Social Capital, Educational Status, Motivation, Personal Satisfaction, Young Adult, Qualitative Research, Emigrants and Immigrants psychology
- Abstract
Purpose: This study focuses on higher education as a pathway to establishment in a new society for female immigrants and its role in well-being. Building on previous research that highlights social capital and empowerment as significant factors for successful establishment in a new society, and experiencing well-being, this study aims to explore if higher education can promote female immigrants' establishment in Swedish society., Methods: Interviews were used to explore female immigrants' experiences of higher education and establishment in Swedish society. Thematic analysis was used to analyse the empirical material, generating a nuanced understanding of the studied topic., Results: Higher education was found to promote establishment in Swedish society, ultimately leading to an experience of well-being. Pursuing higher education was perceived as a means of achieving personal fulfilment and success while fostering new social connections. Important factors in pursuing higher education included favourable living conditions, personal motivation, and a positive educational attitude., Conclusion: The study provides insights into female immigrants' higher education experiences in a context that promotes establishment in Swedish society and well-being. However, more research is needed to fully investigate the driving factors for female immigrants pursuing higher education, considering their migrant background and living conditions.
- Published
- 2024
- Full Text
- View/download PDF
6. Impact of Access Site on Periprocedural Bleeding and Cerebral and Coronary Events in High-Bleeding-Risk Percutaneous Coronary Intervention: Findings from the RIVA-PCI Trial.
- Author
-
Borlich M, Zeymer U, Wienbergen H, Hobbach HP, Cuneo A, Bekeredjian R, Ritter O, Hailer B, Hertting K, Hennersdorf M, Scholtz W, Lanzer P, Mudra H, Schwefer M, Schwimmbeck PL, Liebetrau C, Thiele H, Claas C, Riemer T, Zahn R, Iden L, Richardt G, and Toelg R
- Abstract
Introduction: The preference for using transradial access (TRA) over transfemoral access (TFA) in patients requiring percutaneous coronary intervention (PCI) is based on evidence suggesting that TRA is associated with less bleeding and fewer vascular complications, shorter hospital stays, improved quality of life, and a potential beneficial effect on mortality. We have limited study data comparing the two access routes in a patient population with atrial fibrillation (AF) undergoing PCI, who have a particular increased risk of bleeding, while AF itself is associated with an increased risk of thromboembolism., Methods: Using data from the RIVA-PCI registry, which includes patients with AF undergoing PCI, we analyzed a high-bleeding-risk (HBR) cohort. These patients were predominantly on oral anticoagulants (OAC) for AF, and the PCI was performed via radial or femoral access. Endpoints examined were in-hospital bleeding (BARC 2-5), cerebral events (TIA, hemorrhagic or ischemic stroke) and coronary events (stent thrombosis and myocardial infarction)., Results: Out of 1636 patients, 854 (52.2%) underwent TFA, while 782 (47.8%) underwent the procedure via TRA, including nine patients with brachial artery puncture. The mean age was 75.5 years. Groups were similar in terms of age, sex distribution, AF type, cardiovascular history, risk factors, and comorbidities, except for a higher incidence of previous bypass surgeries, heart failure, hyperlipidemia, and chronic kidney disease (CKD) with a glomerular filtration rate (GFR) < 60 ml/min in the TFA group. No clinically relevant differences in antithrombotic therapy and combinations were present at the time of PCI. However, upon discharge, transradial PCI patients had a higher rate of triple therapy, while dual therapy was preferred after transfemoral procedures. Radial access was more frequently chosen for non-ST-segment elevation myocardial infarction (NSTEMI) and unstable angina pectoris (UAP) cases (NSTEMI 26.6% vs. 17.0%, p < 0.0001; UAP 21.5% vs. 14.5%, p < 0.001), while femoral access was more common for elective PCI (60.3% vs. 44.1%, p < 0.0001). No differences were observed for ST-segment elevation myocardial infarction (STEMI). Both groups had similar rates of cerebral events (TFA 0.2% vs. TRA 0.3%, p = 0.93), but the TFA group had a higher incidence of bleeding (BARC 2-5) (4.2% vs. 1.5%, p < 0.01), mainly driven by BARC 3 bleeding (1.5% vs. 0.4%, p < 0.05). No significant differences were found for stent thrombosis and myocardial infarction (TFA 0.2% vs. TRA 0.3%, p = 0.93; TFA 0.4% vs. TRA 0.1%, p = 0.36)., Conclusions: In HBR patients with AF undergoing PCI for acute or chronic coronary syndrome, the use of TRA might be associated with a decrease in in-hospital bleeding, while not increasing the risk of embolic or ischemic events compared to femoral access. Further studies are required to confirm these preliminary findings., (© 2023. The Author(s).)
- Published
- 2024
- Full Text
- View/download PDF
7. BioMimics 3D Stent in Femoropopliteal Lesions: 3-Year Outcomes with Propensity Matching for Drug-Coated Balloons.
- Author
-
Piorkowski M, Zeller T, Rammos C, Deloose K, Hertting K, Sesselmann V, Tepe G, Gaines P, and Lichtenberg M
- Abstract
Background: Through its helical centreline geometry, the BioMimics 3D vascular stent system is designed for the mobile femoropopliteal region, aiming to improve long-term patency and the risk of stent fractures., Methods: MIMICS 3D is a prospective, European, multi-centre, observational registry to evaluate the BioMimics 3D stent in a real-world population through 3 years. A propensity-matched comparison was performed to investigate the effect of the additional use of drug-coated balloons (DCB)., Results: The MIMICS 3D registry enrolled 507 patients (518 lesion, length 125.9 ± 91.0 mm). At 3 years, the overall survival was 85.2%, freedom from major amputation 98.5%, freedom from clinically driven target lesion revascularisation 78.0%, and primary patency 70.2%. The propensity-matched cohort included 195 patients in each cohort. At 3-year follow-up, there was no statistically significant difference in clinical outcomes, such as overall survival (87.9% in the DCB vs. 85.1% in the no DCB group), freedom from major amputation (99.4% vs. 97.2%), clinically driven TLR (76.4% vs. 80.3%), and primary patency (68.5% vs. 74.4%)., Conclusion: The MIMICS 3D registry showed good 3-year outcomes of the BioMimics 3D stent in femoropopliteal lesions, demonstrating the safety and performance of this device under real-world conditions, whether used alone or in combination with a DCB.
- Published
- 2023
- Full Text
- View/download PDF
8. Favorable Adaptation during SARS-CoV-2-Pandemic as Told by Student-Athletes-A Longitudinal and Behavioral Study.
- Author
-
Johnson U, Hertting K, Ivarsson A, and Lindgren EC
- Subjects
- Adolescent, Athletes psychology, Female, Humans, Male, SARS-CoV-2, Students psychology, COVID-19 epidemiology, Pandemics
- Abstract
(1) Background: The aim was to explore the impact of adaptive responses (resilience factors) on student-athletes' behaviors during a stressful period of life during the SARS-CoV-2-pandemic of 2020 and 2021. (2) Methods: A constructivist-based grounded theory (CGT) was used guided by a biopsychosocial approach. Based on purposeful sampling, 22 male and female student-athletes were divided into four focus group interviews (FGI) seven months after the outbreak of the SARS-CoV-2-pandemic (October 2020) and 18 of these were followed up by FGI seven months later (May 2021). The mean age was 17.65 and they represented golf and handball. (3) Results: The CGT contained four main categories seven months after the SARS-CoV-2-pandemic outbreak: Social support, Self-discipline, Physical practice and recovery and Management of everyday life. Fourteen months after the SARS-CoV-2-pandemic outbreak, four additional main categories emerged: More extensive social support, Belief in the future, Self-awareness and Responsibility and problem-solving. (4) Conclusions: The CTG suggests that student-athletes' favorable adaptations to the stressful SARS-CoV-2-pandemic period 2020-2021 are based on a gradually developed ability to take responsibility for one's own actions, insight into the importance of deepened social interaction, belief in a positive post-COVID future and increased awareness of physical activity and its relation to perceived health.
- Published
- 2022
- Full Text
- View/download PDF
9. Supportive Communities: Conceptualizing Supportive Structures for Coaches' Learning and Well-Being in Community Youth Soccer.
- Author
-
Hertting K, Grahn K, and Wagnsson S
- Subjects
- Adolescent, Child, Humans, Learning, Mentoring, Soccer psychology, Sports education, Youth Sports
- Abstract
Sweden has an extensive culture of community club sports for children and youths, based on voluntary leadership. Being a voluntary coach can be stressful and can affect coaches' well-being. Since voluntary coaching is closely connected to and conditioned by family life and civil occupation, coaches need support for practical issues as well as for developing their coaching assignment in relation to the constantly changing conditions within sports for children and youths. The aim of this paper was to conceptualize and problematize the supportive structures in everyday activities, in order to promote learning and well-being and to prevent mental health issues. This paper is conceptual and based on a paradigm case. The starting point is communities of practice (CoP) and how CoPs can contribute to the development of supportive structures for coaches in youth sports. In conclusion, a CoP is dependent on negotiation within the coaching team as well as on facilitating factors that can add knowledge, perspectives, and experiences to the CoP. The facilitating factors mean that a CoP has the potential to be health-promoting for both coaches and players. Hence, it is important to create conditions, structures, and support-such as policies, practice-based education, mentorship, and facilitators.
- Published
- 2022
- Full Text
- View/download PDF
10. "This Group is Like a Home to Me:" understandings of health of LGBTQ refugees in a Swedish health-related integration intervention: a qualitative study.
- Author
-
Pelters P, Hertting K, Kostenius C, and Lindgren EC
- Subjects
- Female, Humans, Qualitative Research, Sweden, Refugees, Sexual and Gender Minorities, Transients and Migrants
- Abstract
Background: When large numbers of asylum seekers immigrate to a country, civil society is encouraged to contribute to their integration. A subgroup of asylum seekers comprising lesbian, gay, bisexual, transgender, or queer (LGBTQ) refugees are specifically deemed vulnerable to developing health and integration problems due to the double stigma of being a sexual/gender minority and a refugee. The Swedish Federation for LGBTQ Rights (RFSL) is a civil societal organization that has established the support group "RFSL Newcomers," a health-related integration intervention that targets such refugees. The aim of the present study is reconstructing the subjective understanding of health of LGBTQ refugees., Methods: Eleven participants in Newcomers and eight organizers were interviewed about LGBTQ refugees' experiences of migrating and participating in RFSL Newcomers. Qualitative content analysis was used to reconstruct subjective understandings of health that were constructed in these narratives. As the data did not originally concentrate on exploring understandings of health, a broad theoretical approach was used as a heuristic for the analysis, which focused on the common everyday approach of conceptualizing health as wellbeing., Results: The narratives revealed three interconnected, interdependent categories of understanding health in which tensions occur between wellbeing and ill-being: belonging versus alienation, security and safety versus insecurity, and recognition versus denial. The categories contribute to an overarching theme of health as framed freedom - i.e., freedom framed by conditions of society., Conclusions: For our participants, belonging, recognition, and security/safety are conceptual elements of understanding health, not its social determinants. Thus, these understandings emphasize relational and existential meanings of health (theoretical implication). As for practical implications, the understandings of health were connected to being either inside or outside the Newcomers group and a new society, depending on whether LGBTQ refugees comply with social requirements. As a significant actor that is representative of the cultural majority and a facilitator of LGBTQ refugees' resettlement process, RFSL provides LGBTQ refugees with crucial orientations for becoming a "good migrant" and a "good LGBTQ person," yet a "bad bio-citizen." Generally, organizers of interventions may enhance the effectiveness of their interventions when relational, existential, and biomedical understandings of health are all incorporated., (© 2022. The Author(s).)
- Published
- 2022
- Full Text
- View/download PDF
11. Health-related integration interventions for migrants by civil society organizations: an integrative review.
- Author
-
Pelters P, Lindgren EC, Kostenius C, Lydell M, and Hertting K
- Subjects
- Acculturation, Humans, Organizations, Transients and Migrants
- Abstract
Purpose : Migrants are a vulnerable group concerning health and integration. Civil society organizations are deemed important for the integration and health of migrants and have been encouraged to help. This study explored health and acculturation, as expressed in research into health-related integration interventions for migrant groups provided by civil society organizations. Methods : Databases, journal websites and reference lists were searched in an integrative review. Thirteen articles were found and analysed using concepts of health strategies/perspectives and of acculturation with regard to general and health culture. Results : Studies were divided between two primary spectrums: 1) assimilation-integration and 2) integration-separation spectrum. Spectrum 1 interventions tend to promote assimilation into the present host culture and into a Western view of health. They are mostly driven by representatives of the host culture. Spectrum 2 interventions are characterized by a greater openness concerning the home-culture understandings of health, alongside an appreciation of the home culture in general. They are mostly migrant-driven. Conclusions : The different acculturating approaches in migrant and native-driven civil society organizations call for an awareness of their guiding health and acculturation assumptions and their applied perspectives and strategies. This awareness is considered crucial in order to achieve desired health and acculturation outcomes.
- Published
- 2021
- Full Text
- View/download PDF
12. Ping pong for health: the meaning of space in a sport based health intervention at the workplace.
- Author
-
Hertting K, Holmquist M, and Parker J
- Subjects
- Adult, Attitude, Comprehension, Female, Hermeneutics, Humans, Male, Occupations, Qualitative Research, Tennis, Exercise, Health Promotion methods, Interpersonal Relations, Learning, Occupational Health, Sports, Workplace
- Abstract
Purpose : This is a study on a sport-based intervention, with a focus on physical activity, social relations, and learning, to promote health and well-being in the workplace lived space. Lived space is situated and associated with social and cultural conventions which affect the quality of the perceived space at work. The aim of the paper is to elucidate the participant's experiences of the intervention and how health and well-being were affected. Methods : The intervention was conducted with employees from the warehouse of a company within the retail sector. The design consisted of one initial workshop as a baseline, a sport-based intervention, three group interviews, and a final workshop. A hermeneutic phenomenological analysis focused on experiences of the intervention and the meaning of the workplace as the lived space. Results : Three themes emerged in the analysis; Expressing positive individual effects, Expressing improved work environment and The meaning of the workplace as lived space . The themes are discussed in relation to three basic health foci: physical activity, social relations and learning. Conclusion : The workplace as a lived space offers a valuable opportunity for sport-based interventions that improve health and well-being through physical activity, social relations, and learning.
- Published
- 2020
- Full Text
- View/download PDF
13. Perceptions of Stress of Swedish Volunteer Youth Soccer Coaches.
- Author
-
Hertting K, Wagnsson S, and Grahn K
- Abstract
Background: The work of a coach can be stressful, and little is known about how volunteer coaches in child and youth soccer perceive stress. Therefore, the overall aim of this study was to explore perceptions of stress among Swedish volunteer youth soccer coaches., Methods: An online questionnaire was distributed to 1514 soccer coaches of which 688 (78% men and 22% women; 4% < 30 years, 34% 31-40 years; 57% 41-50 years and 5% > 51 years) with non-profit positions responded., Results: Findings indicate that participants in general do not feel excessively stressed by being a volunteer youth soccer coach (M = 2.20; SD = 0.93; Min = 1; Max = 5), and no significant differences in perceived stress level were found based on gender, age, ethnicity, educational level or occupation. Multiple regression analysis showed that demands from employment (β = 0.24, p < 0.001), difficulty catching up with the family (β = 0.22, p < 0.001), not having enough time to plan activities (β = 0.13, p < 0.001), feeling pressured when selecting the team (β = 0.09, p = 0.013) and own demands to achieve good results (β = 0.07, p = 0.045), significantly contributed to perceptions of stress among the investigated youth sport coaches., Conclusions: The results shed light on the important aim that sport clubs develop holistic strategies when recruiting and retaining coaches and for other functions concerning child and youth soccer teams.
- Published
- 2020
- Full Text
- View/download PDF
14. Further Conditions in Young Patients.
- Author
-
Hertting K
- Published
- 2017
- Full Text
- View/download PDF
15. Successful Use of the MYNXGRIP Closure Device during Repeated Transbrachial Percutaneous Peripheral Intervention.
- Author
-
Hertting K and Raut W
- Abstract
The use of closure devices after transbrachial arterial puncture is still controversial. Here we report on a case where the MYNXGRIP (AccessClosure Inc., Santa Clara, CA, USA) could be used successfully in a patient, who underwent percutaneous peripheral arterial intervention twice via transbrachial access.
- Published
- 2015
- Full Text
- View/download PDF
16. Stenting of unprotected left main stem stenosis: Results from a German single-centre registry.
- Author
-
Hertting K, Härle T, Krause K, Reimers J, Boczor S, and Kuck KH
- Abstract
Objective: To elucidate the influence of drug-eluting stents (DESs) on interventional therapy of de novo unprotected left main stem (LMS) lesions in a hospital with on-site cardiac surgery., Methods and Results: A retrospective study of all patients with unprotected LMS angioplasty from 1999 to 2005 was conducted with regard to clinical and procedural data, and follow-up data. Fifty-four patients with unprotected LMS stenosis were treated inter-ventionally. Of these patients, 16 were treated with DESs. Seven patients presented with cardiogenic shock. During their hospital stay, four patients died (all treated with bare metal stents [BMSs], three initially presenting with cardiogenic shock). Follow-up data for 53 patients (98%) were obtained. Median follow-up time was 24 months (25th percentile, 12 months; 75th percentile, 35 months). Survival after nine months was 87% (81% from the BMS-treated group, and 100% from the DES-treated group). Control angiography had been performed in 36 patients (67%). Patients with unprotected LMS with an angiographic follow-up had a higher nine-month survival rate than patients without (36 of 36 patients [100%] versus 10 of 17 patients [59%], respectively; P<0.0001). Target lesion revascularization rate was 19% in both the BMS and the DES groups. Methods of revascularization did not vary significantly between the groups., Conclusions: In the present study of selected patients with LMS stenosis, the use of DESs showed a low mortality rate but did not have a clear effect on target lesion revascularization rate compared with BMSs. A close follow-up appears to be mandatory to achieve acceptable results.
- Published
- 2008
17. Percutaneous endocardial injection of erythropoietin: assessment of cardioprotection by electromechanical mapping.
- Author
-
Krause KT, Jaquet K, Geidel S, Schneider C, Mandel C, Stoll HP, Hertting K, Harle T, and Kuck KH
- Subjects
- Animals, Chronic Disease, Coronary Circulation physiology, Disease Models, Animal, Disease Progression, Endocardium, Image Processing, Computer-Assisted, Myocardial Contraction physiology, Myocardial Ischemia diagnostic imaging, Myocardial Stunning physiopathology, Swine, Ultrasonography, Electrophysiologic Techniques, Cardiac methods, Erythropoietin administration & dosage, Myocardial Ischemia physiopathology
- Abstract
Background: Apart from its well-known stimulation of erythropoiesis, erythropoietin (EPO) exhibits angiogenic and anti-apoptotic effects. These cellular protective effects have also been described in experimental acute myocardial infarction models. We investigated the effects of EPO in a porcine model of chronic progressive myocardial ischaemia., Methods: At weeks 2 and 6 after implantation of a circumflex ameroid constrictor, endocardial electromechanical NOGA system (Biosense Webster, Inc., California, USA) mapping of the left ventricle, coronary and ventricular angiography, as well as echocardiography were performed. Two weeks after ameroid placement, 13 pigs were randomized with 7 pigs receiving 10.000 U EPO and 6 pigs receiving placebo into the ischaemic region using a NOGA guided percutaneous transendocardial injection catheter, MYOSTAR. After 6 weeks, histology (Masson's Trichrome) was analyzed., Results: Endocardial electromechanical mapping showed an increase of mean unipolar voltage (UV) amplitude in the ischaemic myocardial segments in the EPO-treated animals (8.5 mV pre and 10.6 mV post treatment) and a significantly reduced ischaemic surface area compared to the control group (19% vs. 41%) suggesting a decline in ischaemic injury. Echocardiography revealed 2,2 hypokinetic segments of the lateral wall in the EPO group vs. 3,3 in the control groups. The mean ejection fraction was 64% in the EPO group and 55% in the placebo group. Quantitative histological analysis of the ischaemic regions revealed a reduction of myocardial fibrosis (8% vs. 28%) in the EPO group., Conclusion: Endocardial EPO injection may induce cardioprotective effects in hibernating myocardium and may attenuate the progression of ischaemic tissue damage.
- Published
- 2006
- Full Text
- View/download PDF
18. Initial experience with remote catheter ablation using a novel magnetic navigation system: magnetic remote catheter ablation.
- Author
-
Ernst S, Ouyang F, Linder C, Hertting K, Stahl F, Chun J, Hachiya H, Bänsch D, Antz M, and Kuck KH
- Subjects
- Adult, Aged, Equipment Design, Feasibility Studies, Female, Fluoroscopy, Follow-Up Studies, Humans, Male, Metaproterenol, Middle Aged, Radiography, Interventional, Sympathomimetics, Treatment Outcome, Cardiac Catheterization instrumentation, Catheter Ablation instrumentation, Magnetics, Tachycardia, Supraventricular surgery, Video-Assisted Surgery instrumentation
- Abstract
Background: Catheters are typically stiff and incorporate a pull-wire mechanism to allow tip deflection. While standing at the patient's side, the operator manually navigates the catheter in the heart using fluoroscopic guidance., Methods and Results: A total of 42 patients (32 female; mean age, 55+/-15 years) underwent ablation of common-type (slow/fast) or uncommon-type (slow/slow) atrioventricular nodal reentrant tachycardia (AVNRT) with the use of the magnetic navigation system Niobe (Stereotaxis, Inc). It consists of 2 computer-controlled permanent magnets located on opposite sides of the patient, which create a steerable external magnetic field (0.08 T). A small magnet embedded in the catheter tip causes the catheter to align and to be steered by the external magnetic field. A motor drive advances or retracts the catheter, enabling complete remote navigation. Radiofrequency current was applied with the use of a remote-controlled 4-mm, solid-tip, magnetic navigation-enabled catheter (55 degrees C, maximum 40 W, 60 seconds) in all patients. The investigators, who were situated in the control room, performed the ablation using a mean of 7.2+/-4.7 radiofrequency current applications (mean fluoroscopy time, 8.9+/-6.2 minutes; procedure duration, 145+/-43 minutes). Slow pathway ablation was achieved in 15 patients, whereas slow pathway modulation was the end point in the remaining patients. There were no complications., Conclusions: The Niobe magnetic navigation system is a new platform technology allowing remote-controlled navigation of an ablation catheter. In conjunction with a motor drive unit, this system was used successfully to perform completely remote-controlled mapping and ablation in patients with AVNRT.
- Published
- 2004
- Full Text
- View/download PDF
19. Modulation of the slow pathway in the presence of a persistent left superior caval vein using the novel magnetic navigation system Niobe.
- Author
-
Ernst S, Ouyang F, Linder C, Hertting K, Stahl F, Chun J, Hachiya H, Krumsdorf U, Antz M, and Kuck KH
- Subjects
- Adult, Catheter Ablation methods, Electrophysiologic Techniques, Cardiac methods, Female, Heart Conduction System physiopathology, Humans, Recurrence, Tachycardia, Atrioventricular Nodal Reentry complications, Tachycardia, Atrioventricular Nodal Reentry physiopathology, Catheter Ablation instrumentation, Electromagnetic Fields, Electrophysiologic Techniques, Cardiac instrumentation, Tachycardia, Atrioventricular Nodal Reentry surgery, Vena Cava, Superior abnormalities
- Abstract
Aims: This is the first report of a young female with typical AVNRT in the presence of a persistent left superior caval vein that underwent catheter ablation using the novel magnetic navigation system (MNS) Niobe (Stereotaxis Inc.)., Methods: The MNS consists of two outer permanent magnets (about 0.1 T) that align a third small magnet integrated in the tip of a mapping and ablation catheter along its magnetic field lines. By changing the orientation of the outer magnets, the orientation of the magnetic field lines also change, thereby allowing navigation of the ablation catheter. In combination with an automated advancer system, this novel technique allows for the first time complete remote catheter ablation., Results: Successful slow pathway modulation was performed using a total of seven radiofrequency current applications via the magnetic ablation catheter. No complication occurred., Conclusions: The novel magnetic navigation system proved to be a safe and feasible tool for remote catheter ablation of common type AVNRT in the presence of a persistent left superior caval vein.
- Published
- 2004
- Full Text
- View/download PDF
20. Electromechanical mapping for determination of myocardial contractility and viability. A comparison with echocardiography, myocardial single-photon emission computed tomography, and positron emission tomography.
- Author
-
Keck A, Hertting K, Schwartz Y, Kitzing R, Weber M, Leisner B, Franke C, Bahlmann E, Schneider C, Twisselmann T, Weisbach M, Küchler R, and Kuck KH
- Subjects
- Aged, Coronary Artery Disease physiopathology, Electromyography, Female, Heart diagnostic imaging, Heart physiopathology, Humans, Male, Middle Aged, Reproducibility of Results, Cell Survival physiology, Coronary Artery Disease diagnostic imaging, Echocardiography, Myocardial Contraction physiology, Tomography, Emission-Computed, Tomography, Emission-Computed, Single-Photon
- Abstract
Objective: The purpose of this study was to validate electromechanical viability parameters with combined myocardial perfusion and metabolic imaging and echocardiography., Background: The NOGA System is a catheter-based, non-fluoroscopic, three-dimensional endocardial mapping system. This unique technique allows accurate simultaneous assessment of both local electrical activity and regional contractility., Methods: The results of NOGA, myocardial single-photon emission computed tomography (SPECT), positron emission tomography, and echocardiography in 51 patients with coronary artery disease and a pathologic SPECT study were transcribed in a nine-segment bull's-eye projection and compared. The local shortening of normally contracting segments, as shown by echocardiography, was 9.2 +/- 5.1%, which decreased to 6.6 +/- 5.0% and 4.1 +/- 5.2% in hypokinetic and akinetic segments. The highest unipolar voltage (11.2 +/- 5.0 mV) and local shortening (8.2 +/- 5.0%) characterized normally perfused segments. Fixed perfusion defects with normal or limited 18-fluoro-2-deoxy-D-glucose uptake indicating viability had a significantly higher unipolar voltage than did scar tissue (7.25 +/- 2.7 vs. 5.0 +/- 3.1 mV, p = 0.029)., Conclusion: Electromechanical parameters sufficiently defined the viability state of the myocardium and showed good concordance with the findings by nuclear perfusion and metabolism imaging and echocardiography. The NOGA technique provides all the relevant information immediately after coronary angiography and enables the physician to proceed with therapy in the same setting.
- Published
- 2002
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.