| 1. |
- Lauten, Alexander, et al.
(författare)
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Percutaneous Left-Ventricular Support With the Impella-2.5-Assist Device in Acute Cardiogenic Shock Results of the Impella-EUROSHOCK-Registry
- 2013
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Ingår i: Circulation Heart Failure. - 1941-3289 .- 1941-3297. ; 6:1, s. 23-30
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Tidskriftsartikel (refereegranskat)abstract
- Background-Acute cardiogenic shock after myocardial infarction is associated with high in-hospital mortality attributable to persisting low-cardiac output. The Impella-EUROSHOCK-registry evaluates the safety and efficacy of the Impella-2.5-percutaneous left-ventricular assist device in patients with cardiogenic shock after acute myocardial infarction. Methods and Results-This multicenter registry retrospectively included 120 patients (63.6 +/- 12.2 years; 81.7% male) with cardiogenic shock from acute myocardial infarction receiving temporary circulatory support with the Impella-2.5-percutaneous left-ventricular assist device. The primary end point evaluated mortality at 30 days. The secondary end point analyzed the change of plasma lactate after the institution of hemodynamic support, and the rate of early major adverse cardiac and cerebrovascular events as well as long-term survival. Thirty-day mortality was 64.2% in the study population. After Impella-2.5-percutaneous left-ventricular assist device implantation, lactate levels decreased from 5.8 +/- 5.0 mmol/L to 4.7 +/- 5.4 mmol/L (P=0.28) and 2.5 +/- 2.6 mmol/L (P=0.023) at 24 and 48 hours, respectively. Early major adverse cardiac and cerebrovascular events were reported in 18 (15%) patients. Major bleeding at the vascular access site, hemolysis, and pericardial tamponade occurred in 34 (28.6%), 9 (7.5%), and 2 (1.7%) patients, respectively. The parameters of age >65 and lactate level >3.8 mmol/L at admission were identified as predictors of 30-day mortality. After 317 +/- 526 days of follow-up, survival was 28.3%. Conclusions-In patients with acute cardiogenic shock from acute myocardial infarction, Impella 2.5-treatment is feasible and results in a reduction of lactate levels, suggesting improved organ perfusion. However, 30-day mortality remains high in these patients. This likely reflects the last-resort character of Impella-2.5-application in selected patients with a poor hemodynamic profile and a greater imminent risk of death. Carefully conducted randomized controlled trials are necessary to evaluate the efficacy of Impella-2.5-support in this high-risk patient group.
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| 2. |
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| 3. |
- Bongiorni, Maria Grazia, et al.
(författare)
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ELECTRa (European Lead Extraction ConTRolled) Registry-Shedding light on transvenous lead extraction real-world practice in Europe
- 2013
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Ingår i: Herzschrittmachertherapie & Elektrophysiologie. - : Springer Science and Business Media LLC. - 0938-7412 .- 1435-1544. ; 24:3, s. 171-175
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Tidskriftsartikel (refereegranskat)abstract
- With the growing recognition of the clinical need and wider indications for cardiovascular implantable electronic devices (CIED), the number of implant procedures has increased considerably. Consequently, the rate of complications related to these devices has also increased. Transvenous lead extraction (TLE) is the gold standard in the treatment of CIED-related infective complications and is often required in the management of lead malfunction. An increasing number of centers currently perform TLE procedures. The ELECTRa (European Lead Extraction ConTRolled) Registry is the first large prospective multicenter registry of consecutive patients undergoing TLE in Europe, conducted by the European Heart Rhythm Association (EHRA) and managed by the European Society of Cardiology (ESC) EURObservational Research Department. The primary objective of the registry is to evaluate the acute and long-term safety of TLE; the secondary objective is to describe the characteristics of the patients, the leads, the indications for TLE, and the tools and techniques currently used for TLE. About 100 centers will be enrolled on a voluntary basis from European countries; they are anonymous and stratified on the basis of their volume of activity into high-volume centers (> 30 patients/year) and low-volume centers: (≤ 30 patients/year). Each participating center will have to enroll and follow up for 1 year consecutively assessed patients undergoing TLE from November 2012 to January 2014. The target is to achieve a sample size of at least 3,500 patients for statistical analysis. Data will be collected using a Web-based system and will be audited at randomly selected centers. The official start was on 6 November. Eighty-nine centers have joined so far, 65 centers are currently active, those who have already obtained the approval of their own ethics committee, and 1,099 patients were enrolled at the end of June 2013. The independence of the registry, the consecutiveness of the patient enrolment, and the monitoring of the study are characteristics of this registry that will contribute to the scientific validity of the objectives to be achieved.
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| 4. |
- Bongiorni, Maria Grazia, et al.
(författare)
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The European Lead Extraction ConTRolled (ELECTRa) study : a European Heart Rhythm Association (EHRA) Registry of Transvenous Lead Extraction Outcomes
- 2017
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Ingår i: European Heart Journal. - : OXFORD UNIV PRESS. - 0195-668X .- 1522-9645. ; 38:40, s. 2995-3005
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Tidskriftsartikel (refereegranskat)abstract
- Aims The European Lead Extraction ConTRolled Registry (ELECTRa), is a prospective registry of consecutive transvenous lead extraction (TLE) procedures conducted by the European Heart Rhythm Association (EHRA) in order to identify the safety and efficacy of the current practice of TLE Methods and results European centres performing TLE, invited by the organizing committee on behalf of EHRA, prospectively recruited all consecutive patients undergoing TLE at their institution. The primary endpoint was TLE safety defined by pre-discharge major procedure-related complications including death. Secondary endpoints included clinical and radiological success and overall complication rates. Outcomes were compared between Low Volume (LoV) vs. High Volume (HiV) centers (LoV < 30 and HiV >= 30 procedures/year). A total of 3555 consecutive patients (pts) of whom 3510 underwent TLE at 73 centres in 19 European countries were enrolled between November 2012 and May 2014. The primary endpoint of in-hospital procedure-related major complication rate was 1.7% [95% CI 1.3-2.1%] (58/3510 pts) including a mortality of 0.5% [95% CI 0.3-0.8%] (17/3510 pts). Approximately two-thirds (37/58) of these complications occurred during the procedure and one-third (21/58) in the post-operative period. The most common procedure related complications were those requiring pericardiocentesis or chest tube and/or surgical repair (1.4% [95% CI 1.0-1.8%]). Complete clinical and radiological success rates were 96.7% [95% CI 96.1-97.3%] and 95.7% [95% CI 95.2-96.2%], respectively. The all cause in-hospital major complications and deaths were significantly lower in HiV centres vs. LoV centres (2.4% [95% CI 1.9-3.0%] vs. 4.1% [95% CI 2.7-6.0%], P = 0.0146; and 1.2% [95% CI 0.8-1.6%] vs. 2.5% [95% CI 1.5-4.1%] P = 0.0088), although those related to the procedure did not reach statistical significance. Radiological and clinical successes were more frequent in HiV vs. LoV centres. Conclusion The ELECTRa study is the largest prospective registry on TLE and confirmed the safety and efficacy of the current practice of TLE. Lead extraction was associated with a higher success rate with lower all cause complication and mortality rates in high volume compared with low volume centres.
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| 5. |
- Di Cori, Andrea, et al.
(författare)
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Clinical impact of antithrombotic therapy in transvenous lead extraction complications : a sub-analysis from the ESC-EORP EHRA ELECTRa (European Lead Extraction ConTRolled) Registry
- 2019
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Ingår i: Europace. - : Oxford University Press. - 1099-5129 .- 1532-2092. ; 21:7, s. 1096-1105
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Tidskriftsartikel (refereegranskat)abstract
- AIMS: A sub-analysis of the ESC-EHRA European Lead Extraction ConTRolled (ELECTRa) Registry to evaluate the clinical impact of antithrombotic (AT) on transvenous lead extraction (TLE) safety and efficacy.METHODS AND RESULTS: ELECTRa outcomes were compared between patients without AT therapy (No AT Group) and with different pre-operative AT regimens, including antiplatelets (AP), anticoagulants (AC), or both (AP + AC). Out of 3510 pts, 2398 (68%) were under AT pre-operatively. AT patients were older with more comorbidities (P < 0.0001). AT subgroups, defined as AP, AC, or AP + AC, were 1096 (31.2%), 985 (28%), and 317 (9%), respectively. Regarding AP patients, 1413 (40%) were under AP, 1292 (91%) with a single AP, interrupted in 26% about 3.8 ± 3.7 days before TLE. In total, 1302 (37%) patients were under AC, 881 vitamin K antagonist (68%), 221 (17%) direct oral anticoagulants, 155 (12%) low weight molecular heparin, and 45 (3.5%) unfractionated heparin. AC was 'interrupted without bridging' in 696 (54%) and 'interrupted with bridging' in 504 (39%) about 3.3 ± 2.3 days before TLE, and 'continued' in 87 (7%). TLE success rate was high in all subgroups. Only overall in-hospital death (1.4%), but not the procedure-related one, was higher in the AT subgroups (P = 0.0500). Age >65 years and New York Heart Association Class III/IV, but not AT regimens, were independent predictors of death for any cause. Haematomas were more frequent in AT subgroups, especially in AC 'continued' (P = 0.025), whereas pulmonary embolism in the No-AT (P < 0.01).CONCLUSIONS: AT minimization is safe in patients undergoing TLE. AT does not seem to predict death but identifies a subset of fragile patients with a worse in-hospital TLE outcome.
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| 6. |
- Mehta, Vishal S., et al.
(författare)
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Machine learning-derived major adverse event prediction of patients undergoing transvenous lead extraction : Using the ESC EHRA EORP European lead extraction ConTRolled ELECTRa registry
- 2022
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Ingår i: Heart Rhythm. - : Elsevier. - 1547-5271 .- 1556-3871. ; 19:6, s. 885-893
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND Transvenous lead extraction (TLE) remains a high-risk procedure. OBJECTIVE The purpose of this study was to develop a machine learning (ML)-based risk stratification system to predict the risk of major adverse events (MAEs) after TLE. A MAE was defined as procedure-related major complication and procedure-related death. METHODS We designed and evaluated an ML-based risk stratification system trained using the European Lead Extraction ConTRolled (ELECTRa) registry to predict the risk of MAEs in 3555 patients undergoing TLE and tested this on an independent registry of 1171 patients. ML models were developed, including a self-normalizing neural network (SNN), stepwise logistic regression model ("stepwise model"), support vector machines, and random forest model. These were compared with the ELECTRa Registry Outcome Score (EROS) for MAEs. RESULTS There were 53 MAEs (1.7%) in the training cohort and 24 (2.4%) in the test cohort. Thirty-two clinically important features were used to train the models. ML techniques were similar to EROS by balanced accuracy (stepwise model: 0.74 vs EROS: 0.70) and superior by area under the curve (support vector machines: 0.764 vs EROS: 0.677). The SNN provided a finite risk for MAE and accurately identified MAE in 14 of 169 "high (<80%) risk" patients (8.3%) and no MAEs in all 198 "low (,20%) risk" patients (100%). CONCLUSION ML models incrementally improved risk prediction for identifying those at risk of MAEs. The SNN has the additional advantage of providing a personalized finite risk assessment for patients. This may aid patient decision making and allow better preoperative risk assessment and resource allocation.
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| 7. |
- Nof, Eyal, et al.
(författare)
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Comparison of outcomes in infected cardiovascular implantable electronic devices between complete, partial, and failed lead removal : an ESC-EHRA-EORP ELECTRa (European Lead Extraction ConTrolled) registry
- 2019
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Ingår i: Europace. - : Oxford University Press. - 1099-5129 .- 1532-2092. ; 21:12, s. 1876-1889
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Tidskriftsartikel (refereegranskat)abstract
- AIMS: The present study sought to determine predictors for success and outcomes of patients who underwent cardiac implantable electronic devices (CIED) extraction indicated for systemic or local CIED related infection in particular where complete lead removal could not be achieved.METHODS AND RESULTS: ESC-EORP ELECTRa (European Lead Extraction ConTRolled Registry) is a European prospective lead extraction registry. Out of the total cohort, 1865/3510 (52.5%) patients underwent removal due to CIED related infection. Predictors and outcomes of failure were analysed. Complete removal was achieved in 1743 (93.5%) patients, partial (<4 cm of lead left) in 88 (4.7%), and failed (>4 cm of lead left) in 32 (1.8%) patients. Removal success was unrelated to type of CIED infection (pocket or systemic). Predictors for failure were older leads and older patients [odds ratio (OR) 1.14 (1.08-1.19), P < 0.0001 and OR 2.68 (1.22-5.91), P = 0.0146, respectively]. In analysis by lead, predictors for failure were: pacemaker vs. defibrillator removal and failure to engage the locking stylet all the way to the tip [OR 0.20 (0.04-0.95), P = 0.03 and OR 0.32 (0.13-0.74), P = 0.008, respectively]. Significantly higher complication rates were noted in the failure group (40.6% vs. 15.9 for partial and 8.7% for success groups, P < 0.0001). Failure to remove a lead was a strong predictor for in hospital mortality [hazard ratio of 2.05 (1.01-4.16), P = 0.046].CONCLUSION: A total of 6.5% of infected CIED patients failed attempted extraction. Only were >4 cm of lead remained resulted in higher procedural complications and mortality rates.
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| 8. |
- Polewczyk, Anna, et al.
(författare)
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Transvenous lead extraction procedures in women based on ESC-EHRA EORP European Lead Extraction ConTRolled ELECTRa registry : is female sex a predictor of complications?
- 2019
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Ingår i: Europace. - : Oxford University Press (OUP). - 1099-5129 .- 1532-2092. ; 21:12
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Tidskriftsartikel (refereegranskat)abstract
- AIMS: Female sex is considered an independent risk factor of transvenous leads extraction (TLE) procedure. The aim of the study was to evaluate the effectiveness of TLE in women compared with men.METHODS AND RESULTS: A post hoc analysis of risk factors and effectiveness of TLE in women and men included in the ESC-EHRA EORP ELECTRa registry was conducted. The rate of major complications was 1.96% in women vs. 0.71% in men; P = 0.0025. The number of leads was higher in men (mean 1.89 vs. 1.71; P < 0.0001) with higher number of abandoned leads in women (46.04% vs. 34.82%; P < 0.0001). Risk factors of TLE differed between the sexes, of which the major were: signs and symptoms of venous occlusion [odds ratio (OR) 3.730, confidence interval (CI) 1.401-9.934; P = 0.0084], cumulative leads dwell time (OR 1.044, CI 1.024-1.065; P < 0.001), number of generator replacements (OR 1.029, CI 1.005-1.054; P = 0.0184) in females and the number of leads (OR 6.053, CI 2.422-15.129; P = 0.0001), use of powered sheaths (OR 2.742, CI 1.404-5.355; P = 0.0031), and white blood cell count (OR 1.138, CI 1.069-1.212; P < 0.001) in males. Individual radiological and clinical success of TLE was 96.29% and 98.14% in women compared with 98.03% and 99.21% in men (P = 0.0046 and 0.0098).CONCLUSION: The efficacy of TLE was lower in females than males, with a higher rate of periprocedural major complications. The reasons for this difference are probably related to disparities in risk factors in women, including more pronounced leads adherence to the walls of the veins and myocardium. Lead management may be key to the effectiveness of TLE in females.
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| 9. |
- Regoli, François, et al.
(författare)
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Impact of anticoagulation therapy on outcomes in patients with cardiac implantable resynchronization devices undergoing transvenous lead extraction : A substudy of the ESC-EHRA EORP ELECTRa (European Lead Extraction ConTRolled) Registry
- 2019
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Ingår i: Cardiovascular Electrophysiology. - : Wiley. - 1045-3873 .- 1540-8167. ; 30:7, s. 1086-1095
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Tidskriftsartikel (refereegranskat)abstract
- INTRODUCTION: Little data are available on anticoagulation (AC) management in patients with cardiac resynchronization (CRT) devices who undergo transvenous lead extraction (TLE) procedure. We investigated the impact of AC on periprocedural complications in CRT patients undergoing TLE, enrolled in the ESC-EHRA European Lead Extraction ConTrolled (ELECTRa) registry.METHODS AND RESULTS: All CRT patients treated with TLE enrolled in the registry were considered. Perioperative AC management was left to the discretion of the Center. Major and minor intraprocedural and postprocedural complications were compared between patients without AC (Gp1) and patients with AC (Gp2). Regression analyses were performed to identify predictors of complications for Gp2. Out of 734 CRT pts, 328 (44.7%) were under AC (Gp2). Patients from Gp2 presented lower LVEF (Gp2 32.5 ± 10.9 vs Gp1 34.5 ± 11.9%; P = 0.03), more advanced heart failure disease (NYHA III/IV: Gp2 42.0 vs Gp1 31.5%; P = 0.02), and renal impairment (Gp2 39.0 vs Gp1 24.3%; P < 0.001). Perioperative regimens included AC interruption (Gp2A: n = 169, 51.5%), "bridging" (Gp2B: n = 135, 41.2%), or continued AC (Gp2C: n = 24, 7.3%). TLE complete success rates (98% in both groups) and major complication rates were comparable for both groups; minor bleeding events were more frequent in Gp2 (5.5%) compared to Gp1 (2.5%; P = 0.051). No independent predictors were identified for Gp2, but minor complications were associated with "bridging" approach (Gp2B: 16 events vs Gp2A/C: 9 events; P = 0.020).CONCLUSION: CRT patients treated with TLE under AC were more compromised but did not present more major complications compared to patients without AC. More minor complications were associated with "bridging" AC regimen.
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| 10. |
- Segreti, Luca, et al.
(författare)
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Procedural outcomes associated with transvenous lead extraction in patients with abandoned leads : an ESC-EHRA ELECTRa (European Lead Extraction ConTRolled) Registry Sub-Analysis.
- 2019
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Ingår i: Europace. - : Oxford University Press (OUP). - 1099-5129 .- 1532-2092. ; 21:4, s. 645-654
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Tidskriftsartikel (refereegranskat)abstract
- Aims: The decision to abandon or extract superfluous leads remains controversial. We sought to compare procedural outcome of patients with and without abandoned leads undergoing transvenous lead extraction (TLE).Methods and results: An analysis of the ESC-EHRA European Lead Extraction ConTRolled ELECTRa registry was conducted. Patients were stratified into two groups based on the presence (Group 1) or absence (Group 2) of abandoned leads at the time for extraction. Out of 3508 TLE procedures, 422 patients (12.0%) had abandoned leads (Group 1). Group 1 patients were older and more likely to have implantable cardioverter-defibrillator devices, infection indication (78.8% vs. 49.8%), and vegetations (24.6% vs. 15.3%). Oldest lead dwelling time was longer in Group 1 (10.9 vs. 6.3 years) as was the number of extracted leads per patient (3.2 vs. 1.7). Manual traction failure (94.5% vs. 78.8%), powered sheath use (50.7% vs. 28.4%), and femoral approach were higher in Group 1 (P < 0.0001). Procedural success rate and clinical success (89.8% vs. 96.6%, P < 0.0001) were lower in Group 1. Major complication including deaths (5.5% vs. 2.3%, P = 0.0007) and procedure related major complications (3.3% vs. 1.4%, P = 0.0123) were higher in Group 1. The presence of abandoned leads at the time of TLE was an independent predictor of clinical failure [odds ratio (OR) 2.31, confidence interval (CI) 1.57-3.40] and complications [OR 1.69, CI 1.22-2.35]. receiver-operating characteristic curve analysis showed a dwell time threshold of 9 years for radiological failure and major complications.Conclusions: Previously abandoned leads at the time of TLE were associated with increased procedural complexity, clinical failure, and major complication, which may have important implications for future studies regarding managing of lead failures.
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| 11. |
- Sidhu, Baldeep S., et al.
(författare)
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Risk stratification of patients undergoing transvenous lead extraction with the ELECTRa Registry Outcome Score (EROS) : an ESC EHRA EORP European lead extraction ConTRolled ELECTRa registry analysis
- 2021
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Ingår i: Europace. - : Oxford University Press. - 1099-5129 .- 1532-2092. ; 23:9, s. 1462-1471
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Tidskriftsartikel (refereegranskat)abstract
- AIMS: Transvenous lead extraction is associated with a significant risk of complications and identifying patients at highest risk pre-procedurally will enable interventions to be planned accordingly. We developed the ELECTRa Registry Outcome Score (EROS) and applied it to the ELECTRa registry to determine if it could appropriately risk-stratify patients.METHODS AND RESULTS: EROS was devised to risk-stratify patients into low risk (EROS 1), intermediate risk (EROS 2), and high risk (EROS 3). This was applied to the ESC EORP European Lead Extraction ConTRolled ELECTRa registry; 57.5% EROS 1, 31.8% EROS 2, and 10.7% EROS 3. Patients with EROS 3 or 2 were significantly more likely to require powered sheaths and a femoral approach to complete procedures. Patients with EROS 3 were more likely to suffer procedure-related major complications including deaths (5.1 vs. 1.3%; P < 0.0001), both intra-procedural (3.5 vs. 0.8%; P = 0.0001) and post-procedural (1.6 vs. 0.5%; P = 0.0192). They were more likely to suffer post-procedural deaths (0.8 vs. 0.2%; P 0.0449), cardiac avulsion or tear (3.8 vs. 0.5%; P < 0.0001), and cardiovascular lesions requiring pericardiocentesis, chest tube, or surgical repair (4.6 vs. 1.0%; P < 0.0001). EROS 3 was associated with procedure-related major complications including deaths [odds ratio (OR) 3.333, 95% confidence interval (CI) 1.879-5.914; P < 0.0001] and all-cause in-hospital major complications including deaths (OR 2.339, 95% CI 1.439-3.803; P = 0.0006).CONCLUSION: EROS successfully identified patients who were at increased risk of significant procedural complications that require urgent surgical intervention.
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| 12. |
- Sidhu, Baldeep S., et al.
(författare)
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The effect of centre volume and procedure location on major complications and mortality from transvenous lead extraction : an ESC EHRA EORP European Lead Extraction ConTRolled ELECTRa registry subanalysis
- 2020
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Ingår i: Europace. - : Oxford University Press (OUP). - 1099-5129 .- 1532-2092. ; 22:11, s. 1718-1728
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Tidskriftsartikel (refereegranskat)abstract
- AIMS : Transvenous lead extraction (TLE) should ideally be undertaken by experienced operators in a setting that allows urgent surgical intervention. In this analysis of the ELECTRa registry, we sought to determine whether there was a significant difference in procedure complications and mortality depending on centre volume and extraction location.METHODS AND RESULTS : Analysis of the ESC EORP European Lead Extraction ConTRolled ELECTRa registry was conducted. Low-volume (LoV) centres were defined as <30 procedures/year, and high-volume (HiV) centres as ≥30 procedures/year. Three thousand, two hundred, and forty-nine patients underwent TLE by a primary operator cardiologist; 17.1% in LoV centres and 82.9% in HiV centres. Procedures performed by primary operator cardiologists in LoV centres were less likely to be successful (93.5% vs. 97.1%; P < 0.0001) and more likely to be complicated by procedure-related deaths (1.1% vs. 0.4%; P = 0.0417). Transvenous lead extraction undertaken by primary operator cardiologists in LoV centres were associated with increased procedure-related major complications including death (odds ratio 1.858, 95% confidence interval 1.007-3.427; P = 0.0475). Transvenous lead extraction locations varied; 52.0% operating room, 9.5% hybrid theatre and 38.5% catheterization laboratory. Rates of procedure-related major complications, including death occurring in a high-risk environment (combining operating room and hybrid theatre), were similar to those undertaken in the catheterization laboratory (1.7% vs. 1.6%; P = 0.9297).CONCLUSION : Primary operator cardiologists in LoV centres are more likely to have extractions complicated by procedure-related deaths. There was no significant difference in procedure complications between different extraction settings. These findings support the need for TLE to be performed in experienced centres with appropriate personnel present.
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| 14. |
- Sperzel, Johannes, et al.
(författare)
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Performance evaluation of a right atrial automatic capture verification algorithm using two different sensing configurations.
- 2009
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Ingår i: Pacing and clinical electrophysiology : PACE. - : Wiley. - 1540-8159 .- 0147-8389. ; 32:5, s. 579-87
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: This acute data collection study evaluated the performance of a right atrial (RA) automatic capture verification (ACV) algorithm based on evoked response sensing from two electrode configurations during independent unipolar pacing. METHODS: RA automatic threshold tests were conducted. Evoked response signals were simultaneously recorded between the RA(Ring) electrode and an empty pacemaker housing electrode (RA(Ring)-->Can) and the electrically isolated Indifferent header electrode (RA(Ring)-->Ind). The atrial evoked response (AER) and the performance of the ACV algorithm were evaluated off-line using each sensing configuration. An accurate threshold measurement was defined as within 0.2 V of the unipolar threshold measured manually. Threshold tests were designed to fail for small AER (< 0.35 mV) or insufficient signal-to-artifact ratio (SAR < 2). Manual threshold measurements were obtained during RA unipolar and bipolar pacing and compared across device indications. RESULTS: Data were collected from 38 patients with RA bipolar leads from four manufacturers. AER signals were analyzed from 34 patients who were indicated for a pacemaker (five), implantable cardioverter-defibrillator (11), or cardiac resynchronization therapy pacemaker (six) or defibrillator (12). The minimum AER amplitude was larger (P < 0.0001) when recorded from RA(Ring)-->Can (1.6+/-0.9 mV) than from RA(Ring)-->Ind (1.3+/-0.8 mV). The algorithm successfully measured the pacing threshold in 96.8% and 91.0% of tests for RA(Ring)-->Can and RA(Ring)-->Ind, respectively. No statistical difference between the unipolar and bipolar pacing threshold was observed. CONCLUSIONS: The RA(Ring)-->Can AER sensing configuration may provide a means of implementing an independent pacing/sensing method for ACV in the RA. RA bipolar pacing therapy based on measured RA unipolar pacing thresholds may be feasible.
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| 15. |
- Zucchelli, Giulio, et al.
(författare)
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Major cardiac and vascular complications after transvenous lead extraction : acute outcome and predictive factors from the ESC-EHRA ELECTRa (European Lead Extraction ConTRolled) registry
- 2019
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Ingår i: Europace. - : Oxford University Press (OUP). - 1099-5129 .- 1532-2092. ; 21:5, s. 771-780
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Tidskriftsartikel (refereegranskat)abstract
- Aims: We aimed at describing outcomes and predictors of cardiac avulsion or tear (CA/T) with tamponade and vascular avulsion or tear (VA/T) after transvenous lead extraction (TLE) in the ESC-EHRA European Lead Extraction ConTRolled (ELECTRa) registry.Methods and results: A total of 3555 consecutive patients of whom 3510 underwent TLE at 73 centres in 19 European countries were enrolled. Among 58 patients (1.7%) with procedure-related major complications, 49 (84.5%) patients (30 CA/T and 19 VA/T) presented cardiovascular complications requiring pericardiocentesis, chest tube positioning and/or surgical repair. The mortality was 20% in patients with tamponade due to CA/T and 31.6% in patients with VA/T. Pericardiocentesis as first manoeuvre followed by rescue surgical repair was highly effective in case of CA/T (93.8%). At multivariate analysis, CA/T with tamponade was more common in RIATA lead extraction, female patients, leads with a mean dwelling time more than 10 years, and when ≥3 leads were extracted or multiple sheaths required. Occlusion or critical stenosis of superior venous access and the leads mean dwelling time more than 10 years were independent predictors for VA/T, while mechanical dilatation was an independent predictor of a lower incidence of this complication as compared to the use of powered sheaths.Conclusions: In the ELECTRa registry, RIATA lead extraction and superior venous access occlusion/thrombosis are two new independent predictors for cardiac tamponade and major vascular complications, respectively. The use of mechanical sheaths seems to be associated with a lower incidence of VA/T. A strategy of pericardiocentesis followed by a rescue surgical approach seems to be reasonable in order to treat a CA/T with tamponade.
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