scholarly journals Ventricular Fibrillation During Recovery Period Of Exercise Testing: Seven Years Of Follow-up

2010 ◽  
Author(s):  
Gokmen Gemici ◽  
Refik Erdim ◽  
Ahmet Oktay
Keyword(s):  
Ventricular Fibrillation ◽  
Exercise Testing ◽  
Recovery Period

scholarly journals Effectiveness of Text Messaging as an Incentive to Maintain Physical Activity after Cardiac Rehabilitation: A Randomized Controlled Pilot Study

2021 ◽  
Vol 18 (12) ◽  
pp. 6645
Author(s):  
Giulia Foccardi ◽  
Marco Vecchiato ◽  
Daniel Neunhaeuserer ◽  
Michele Mezzaro ◽  
Giulia Quinto ◽  
...  
Keyword(s):  
Physical Activity ◽  
Cardiac Rehabilitation ◽  
Exercise Testing ◽  
Text Messages ◽  
Control Group ◽  
Stand Test ◽  
Randomized Controlled ◽  
Sit To Stand ◽  
Significant Difference

Although the efficacy of cardiac rehabilitation (CR) is proven, the need to improve patients’ adherence has emerged. There are only a few studies that have investigated the effect of sending text messages after a CR period to stimulate subjects’ ongoing engagement in regular physical activity (PA). A randomized controlled pilot trial was conducted after CR, sending a daily PA text message reminder to an intervention group (IG), which was compared with a usual care control group (CG) during three months of follow-up. Thirty-two subjects were assessed pre- and post-study intervention with GPAQ, submaximal iso-watt exercise testing, a 30 s sit-to-stand test, a bilateral arm curl test, and a final survey on a seven-point Likert scale. A statistically significant difference in the increase of moderate PA time (Δ 244.7 (95% CI 189.1, 300.4) minutes, p < 0.001) and in the reduction of sedentary behavior time (Δ −77.5 (95% CI 104.9, −50.1) minutes, p = 0.004) was shown when the IG was compared with the CG. This was associated with an improvement in heart rate, blood pressure, and patients’ Borg rating on the category ratio scale 10 (CR10) in iso-watt exercise testing (all p < 0.05). Furthermore, only the IG did not show a worsening of the strength parameters in the follow-up leading to a change of the 30 s sit-to-stand test with a difference of +2.2 (95% CI 1.23, 3.17) repetitions compared to CG (p = 0.03). The telemedical intervention has been appreciated by the IG, whose willingness to continue with regular PA emerged to be superior compared to the CG. Text messages are an effective and inexpensive adjuvant after phase 2 CR that improves adherence to regular PA. Further studies are needed to confirm these results in a larger patient population and in the long term.

Clinical characteristics and risk factors of arrhythmia during follow‐up of patients with idiopathic ventricular fibrillation

2020 ◽  
Vol 31 (10) ◽  
pp. 2677-2686
Author(s):  
Niels K. Stampe ◽  
Camilla B. Jespersen ◽  
Charlotte Glinge ◽  
Henning Bundgaard ◽  
Jacob Tfelt‐Hansen ◽  
...  
Keyword(s):  
Risk Factors ◽  
Ventricular Fibrillation ◽  
Clinical Characteristics ◽  
Idiopathic Ventricular Fibrillation

scholarly journals The Duke treadmill score with bicycle ergometer: Exercise capacity is the most important predictor of cardiovascular mortality

2018 ◽  
Vol 26 (2) ◽  
pp. 199-207 ◽  
Author(s):  
Esko Salokari ◽  
Jari A Laukkanen ◽  
Terho Lehtimaki ◽  
Sudhir Kurl ◽  
Setor Kunutsor ◽  
...  
Keyword(s):  
Exercise Capacity ◽  
Exercise Testing ◽  
Cardiovascular Mortality ◽  
Cox Regression ◽  
Cardiovascular Death ◽  
Bicycle Exercise ◽  
Metabolic Equivalents ◽  
Ergometer Exercise ◽  
Duke Treadmill Score

Background The Duke treadmill score, a widely used treadmill testing tool, is a weighted index combining exercise time or capacity, maximum ST-segment deviation and exercise-induced angina. No previous studies have investigated whether the Duke treadmill score and its individual components based on bicycle exercise testing predict cardiovascular death. Design Two populations with a standard bicycle testing were used: 3936 patients referred for exercise testing (2371 men, age 56 ± 13 years) from the Finnish Cardiovascular Study (FINCAVAS) and a population-based sample of 2683 men (age 53 ± 5.1 years) from the Kuopio Ischaemic Heart Disease study (KIHD). Methods Cox regression was applied for risk prediction with cardiovascular mortality as the primary endpoint. Results In FINCAVAS, during a median 6.3-year (interquartile range (IQR) 4.5–8.2) follow-up period, 180 patients (4.6%) experienced cardiovascular mortality. In KIHD, 562 patients (21.0%) died from cardiovascular causes during the median follow-up of 24.1 (IQR 18.0–26.2) years. The Duke treadmill score was associated with cardiovascular mortality in both populations (FINCAVAS, adjusted hazard ratio (HR) 3.15 for highest vs. lowest Duke treadmill score tertile, 95% confidence interval (CI) 1.83–5.42, P < 0.001; KIHD, adjusted HR 1.71, 95% CI 1.34–2.18, P < 0.001). However, after progressive adjustment for the Duke treadmill score components, the score was not associated with cardiovascular mortality in either study population, as exercise capacity in metabolic equivalents of task was the dominant harbinger of poor prognosis. Conclusions The Duke treadmill score is associated with cardiovascular mortality among patients who have undergone bicycle exercise testing, but metabolic equivalents of task, a component of the Duke treadmill score, proved to be a superior predictor.

scholarly journals Electrical Substrate Ablation for Refractory Ventricular Fibrillation: Results of the AVATAR Study

2021 ◽  
Author(s):  
David E. Krummen ◽  
Gordon Ho ◽  
Kurt S. Hoffmayer ◽  
Franz Schweis ◽  
Tina Baykaner ◽  
...  
Keyword(s):  
Ventricular Fibrillation ◽  
Primary Outcome ◽  
Reference Group ◽  
Group Versus ◽  
Electrical Storm ◽  
Antiarrhythmic Drug Therapy ◽  
All Cause Mortality ◽  
Rapid Pacing ◽  
Optimal Treatment Strategy

Background - Refractory ventricular fibrillation (VF) is a challenging clinical entity, for which ablation of triggering premature ventricular complexes (PVCs) is described. When PVCs are infrequent and multifocal, the optimal treatment strategy is uncertain. Methods - We prospectively enrolled consecutive patients presenting with multiple ICD shocks for VF refractory to antiarrhythmic drug therapy, exhibiting infrequent (≤3%), multifocal PVCs (≥3 morphologies). Procedurally, VF was induced with rapid pacing and mapped, identifying sites of conduction slowing and rotation or rapid focal activation. VF electrical substrate ablation (VESA) was then performed. Outcomes were compared against reference patients with VF who were unable or unwilling to undergo catheter ablation. The primary outcome was a composite of ICD shock, electrical storm, or all-cause mortality. Results - VF was induced and mapped in 6 patients (60±10 y, LVEF 46±19%) with ischemic (n=3) and nonischemic cardiomyopathy. An average of 3.3±0.5 sites of localized reentry during VF were targeted for radiofrequency ablation (38.3±10.9 minutes) during sinus rhythm, rendering VF non-inducible with pacing. Freedom from the primary outcome was 83% in the VF ablation group versus 17% in 6 non-ablation reference patients at a median of 1.0 years (IQR 0.5-1.5 years, p=0.046) follow-up. Conclusions - VESA is associated with a reduction in the combined endpoint compared with the non-ablation reference group. Additional work is required to understand the precise pathophysiologic changes which promote VF in order to improve preventative and therapeutic strategies.

scholarly journals Electrically-Induced Ventricular Fibrillation Alters Cardiovascular Function and Expression of Apoptotic and Autophagic Proteins in Rat Hearts

2019 ◽  
Vol 20 (7) ◽  
pp. 1628 ◽  
Author(s):  
Andras Czegledi ◽  
Agnes Tosaki ◽  
Alexandra Gyongyosi ◽  
Rita Zilinyi ◽  
Arpad Tosaki ◽  
...  
Keyword(s):  
Sudden Cardiac Death ◽  
Ventricular Fibrillation ◽  
Cardiac Death ◽  
Caspase 3 ◽  
Recovery Period ◽  
Heart Rhythm ◽  
Heart Tissue ◽  
Altered Expression ◽  
Cardiac Functions ◽  
Rat Hearts

Background: The pathological heart contractions, called arrhythmias, especially ventricular fibrillation (VF), are a prominent feature of many cardiovascular diseases leading to sudden cardiac death. The present investigation evaluates the effect of electrically stimulated VF on cardiac functions related to autophagy and apoptotic mechanisms in isolated working rat hearts. Methods: Each group of hearts was subjected to 0 (Control), 1, 3, or 10 min of spacing-induced VF, followed by 120 min of recovery period and evaluated for cardiac functions, including aortic flow (AF), coronary flow (CF), cardiac output (CO), stroke volume (SV), and heart rate (HR). Hearts were also evaluated for VF effects on infarcted zone magnitude and Western blot analysis was conducted on heart tissue for expression of the apoptotic biomarker cleaved-caspase-3 and the autophagy proteins: p62, P-mTOR/mTOR, LC3BII/LC3BI ratio, and Atg5-12 complexes. Results: Data revealed that VF induced degradation in AF, CF, CO, and SV, which prominently included-variable post-VF capacity for recovery of normal heart rhythm; increased extent of infarcted heart tissue; altered expression of cleaved-caspase-3 suggesting potential for VF-mediated amplification of apoptosis. VF influence on expression of p62, LC3BII/LC3BI, and Atg5-12 proteins was complex, possibly due to differential effects of VF-induced expression on proteins comprising the autophagic program. Conclusions: VF was observed to cause time-dependent changes in autophagy processes, which with additional analysis under ongoing investigations, likely to yield novel therapeutic targets for the prevention of VF and sudden cardiac death.

scholarly journals Efficiency of gaseous ozone in reducing the development of dry socket following surgical third molar extraction

2016 ◽  
Vol 10 (03) ◽  
pp. 381-385 ◽  
Author(s):  
Jehona Ahmedi ◽  
Enis Ahmedi ◽  
Osman Sejfija ◽  
Zana Agani ◽  
Vjosa Hamiti
Keyword(s):  
Recovery Period ◽  
Third Molar ◽  
Control Group ◽  
Third Molars ◽  
Dry Socket ◽  
Third Molar Extraction ◽  
Surgical Extraction ◽  
Prophylactic Use ◽  
Experimental Group

ABSTRACT Objective: The objective of this study was to assess the efficacy of ozone gas (O3) on the reduction of dry socket (DS) occurrence following surgical extraction of lower jaw third molars, influence of the indication for the extraction, and the difficulty of extraction on the incidence of DS. Materials and Methods: This study included thirty patients with bilaterally impacted third molars of mandible requiring surgical procedure for extraction. Following extraction, in the control group, saline solution was used for irrigation of extraction sockets and in the experimental group, intra-alveolar O3 was applied for 12 s (Prozone, W and H, UK, Ltd.). The surgeries were performed by the same oral surgeon. The follow-up visits were performed at 48 h and on day seven, postsurgery where the symptoms of DS were evaluated and intensity of pain has been recorded using visual analog scale 0–100. Results: In this pilot study, DS was present in 16.67% and 3.33% of cases in the control and experimental groups, respectively (P = 0.20). Conclusion: The application of O3 may reduce the incidence of DS and accelerates the recovery period after the surgery. Prophylactic use of O3 may be suggested in all patients, especially in the patients at a risk of development of DS.

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