The prognostic value of transesophageal echocardiography after transvenous lead extraction: landscape after battle

Ghost in the right atrium: A case report on successful identification of residual fibrous tissue

The term "ghost" refers to residual fibrous tissue that remains within the cardiovascular system following the removal of implanted device leads. In this case, a 75-year-old male underwent a transvenous lead extraction procedure prompted by an infection. After the procedure, transesophageal echocardiography (TEE) revealed a stable "ghost" in the right atrium. Figures and videos dynamically depicted the ghost's morphology, clearly showing that one end of this spectral entity was firmly attached to the atrial wall, while the other end displayed unrestrained mobility within the bloodstream. After undergoing a thorough evaluation that confirmed the benign nature of the "ghost", there was evidently no need for medical intervention. In summary, the article portrayed a rare yet intriguing "ghost" observed during the perioperative period. Furthermore, this study emphasizes the crucial significance of accurately distinguishing between these "ghosts" and genuinely pathological structures. Such differentiation holds immense importance in preventing unnecessary medical interventions.

Discussing the Prognosis and Complications of Transvenous Lead Extraction in Patients With Cardiac Implantable Electronic Devices (CIED): A Systematic Review

An increase in cardiovascular implantable electronic devices (CIEDs) and undoubtedly the complications brought on by these devices coincide with an increase in cardiovascular disorders, particularly heart rhythm abnormalities. The safest procedure to extract these devices is transvenous lead extraction (TLE). Thus, this systematic review aimed to summarize the possibility of success rates and the common complications that could arise during the surgery. Full-text publications in PubMed, MEDLINE, PubMed Central (PMC), and ScienceDirect were used in this study, which was conducted using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Seventeen studies were reviewed for this systematic review after being screened by title, abstract, full-text availability, and quality appraisal assessment. Heart and vascular tears, along with tricuspid regurgitation (TR), are common adverse events. Pulmonary embolism, hemothorax, hemopericardium, and ghost appearance in echo are less common consequences. In addition, the longer the dwelling time of the leads, the greater the chance of infection due to an increase in lead adhesions and fibrous tissue that has made the procedure unsafe as time passes. However, we concluded that TLE is a successful method across all age groups with an excellent probability of clinical and procedural success in a majority of studies.

Cardiac tamponade as an inherent but potentially nonfatal complication of transvenous lead extraction: Experience with 1126 procedures performed using mechanical tools

INTRODUCTION

Cardiac tamponade (CT) is one of the most common and dangerous complications of transvenous lead extraction (TLE). So far, however, there has been little discussion about the problem.

METHODS

We analyzed the occurrence of CT in a group of 1226 patients undergoing TLE at a single reference center between June, 2015 and February, 2021. Using standard mechanical devices as first-line tools, a total of 2092 leads had been extracted.

RESULTS

CT occurred in 18 patients (1.47%): due to injury to the wall of the right atrium in 14 patients (1.14%) and other cardiac walls in four patients (0.33%). Younger patient age at first implantation, female gender, high left ventricular ejection fraction (LVEF), lower New York Heart Association class, low Charlson comorbidity index, longer implant duration, and the number of previous procedures related to cardiac implantable electronic devices (CIED) are important patient-related risk factors for CT. Significant procedure-related risk factors include the number of extracted leads, extraction of atrial leads and longer dwell time of extracted leads. Intraoperative transoesophageal echocardiography (TEE) provides a lot of information about pulling on various cardiac structures and is able to detect a very early phase of bleeding to the pericardial sac. As a result of implementing best practices guidance in performing extraction procedures and close collaboration with cardiac surgeons that allowed immediate rescue intervention in our series of 18 CT cases, there were no procedure-related deaths (mortality 0%).

CONCLUSIONS

The need for rescue surgery due to CT has no influence on clinical and procedural success. Early diagnosed (TEE monitoring) and properly managed CT does not generate any additional risk in short- and long-term follow-up after TLE.

"Ghost", a Well-Known but Not Fully Explained Echocardiographic Finding during Transvenous Lead Extraction: Clinical Significance

"Ghosts" are fibrinous remnants that become visible during transvenous lead extraction (TLE).

METHODS

Data from transoesophageal echocardiography-guided TLE procedures performed in 1103 patients were analysed to identify predisposing risk factors for the development of so-called disappearing ghosts-flying ghosts (FG), or attached to the cardiovascular wall-stable ghosts (SG), and to find out whether the presence of ghosts affected patient prognosis after TLE.

RESULTS

Ghosts were detected in 44.67% of patients (FG 15.5%, SG 29.2%). The occurrence of ghosts was associated with patient age at first system implantation [FG (OR = 0.984; p = 0.019), SG (OR = 0.989; p = 0.030)], scar tissue around the lead (s) [FG (OR = 7.106; p < 0.001, OR = 1.372; p = 0.011), SG (OR = 1.940; p < 0.001)], adherence of the lead to the cardiovascular wall [FG (OR = 0.517; p = 0.034)] and the number of leads [SG (OR = 1.450; p < 0.002). The presence of ghosts had no impact on long-term survival after TLE in the whole study group [FG HR = 0.927, 95% CI (0.742-1.159); p = 0.505; SG HR = 0.845, 95% CI (0.638-1.132); p = 0.265].

CONCLUSIONS

The degree of growth and maturation of scar tissue surrounding the lead was the strongest factor leading to the development of both types of ghosts. The presence of either form of ghost did not affect long-term survival even after TLE indicated for infection.

Tricuspid Valve Damage Related to Transvenous Lead Extraction

BACKGROUND

Damage to the tricuspid valve (TVD) is now considered either a major or minor complication of the transvenous lead extraction procedure (TLE). As yet, the risk factors and long-term survival after TLE in patients with TVD have not been analyzed in detail.

METHODS

This post hoc analysis used clinical data of 2631 patients (mean age 66.86 years, 39.64% females) who underwent TLE procedures performed in three high-volume centers. The risk factors and long-term survival of patients with worsening tricuspid valve (TV) function after TLE were analyzed.

RESULTS

In most procedures (90.31%), TLE had no negative influence on TV function, but in 9.69% of patients, a worsening of tricuspid regurgitation (TR) to varying degrees was noted, including significant dysfunction in 2.54% of patients. Risk factors of TLE relating to severe TVD were: TLE of pacing leads (5.264; p = 0.029), dwell time of the oldest extracted lead (OR = 1.076; p = 0.032), strong connective scar tissue connecting a lead with tricuspid apparatus (OR = 5.720; p < 0.001), and strong connective scar tissue connecting a lead with the right ventricle wall (OR = 8.312; p < 0.001). Long-term survival (1650 ± 1201 [1-5519] days) of patients with severe TR was comparable to patients without tricuspid damage related to TLE.

CONCLUSIONS

Severe tricuspid valve damage related to TLE is relatively rare (2.5%). The main risk factors for the worsening of TV function are associated with a longer lead dwell time (more often the pacing lead), causing stronger connective tissue scars connecting the lead to the tricuspid apparatus and right ventricle. TVD is unlikely to affect long-term survival after TLE.

Risk Factors for Lead-Related Venous Obstruction: A Study of 2909 Candidates for Lead Extraction

Background: our knowledge of lead-related venous stenosis/occlusion (LRVSO) remains limited and there is still controversy regarding the risk factors for LRVSO. Venography is mandatory before transvenous lead extraction (TLE). Methods: we performed a retrospective analysis of venograms in 2909 patients (39.43% females, average age 66.90 years) who underwent TLE between 2008 and 2021 at high-volume centers. Results: the severity of LRVSO was likely to be dependent on the number of leads in the system (OR = 1.345; p = 0.003), the number of abandoned leads (OR = 1.965; p < 0.001), the presence of coronary sinus leads (OR = 1.184; p = 0.056), male gender (OR = 1.349; p = 0.003) and patient age at first CIED implantation (OR = 1.008; p = 0.021). The presence of permanent atrial fibrillation (OR = 0.666; p < 0.001) and right ventricular diastolic diameter (OR = 0.978; p = 0.006) showed an inverse correlation with the degree of LRVSO. The combined three-model multivariate analysis provided better prediction of LRSVO using the above-mentioned factors than the CHA2DS2-VASc score. Conclusions: the severity of LRVSO is probably dependent on the mechanical impact of the implanted/abandoned leads on the vein wall, therefore the study has demonstrated the central role of system-/procedure-related risk factors. The thrombotic mechanism may be less important, especially long after implantation, and for this reason the combined prediction model for LRVSO in this study was more effective than the CHA2DS2-VASc score.

A Study of Major and Minor Complications of 1500 Transvenous Lead Extraction Procedures Performed with Optimal Safety at Two High-Volume Referral Centers

Background: Transvenous lead extraction (TLE) is the preferred management strategy for complications related to cardiac implantable electronic devices. TLE sometimes can cause serious complications. Methods: Outcomes of TLE procedures using non-powered mechanical sheaths were analyzed in 1500 patients (mean age 68.11 years; 39.86% females) admitted to two high-volume centers. Results: Complete procedural success was achieved in 96.13% of patients; clinical success in 98.93%, no periprocedural death occurred. Mean lead dwell time in the study population was 112.1 months. Minor complications developed in 115 (7.65%), major complications in 33 (2.20%) patients. The most frequent minor complications were tricuspid valve damage (TVD) (3.20%) and pericardial effusion that did not necessitate immediate intervention (1.33%). The most common major complication was cardiac laceration/vascular tear (1.40%) followed by an increase in TVD by two or three grades to grade 4 (0.80%). Conclusions: Despite the long implant duration (112.1 months) satisfying results without procedure-related death can be obtained using mechanical tools. Lead remnants or severe tricuspid regurgitation was the principal cause of lack of clinical and procedural success. Worsening TR(Tricuspid regurgitation) (due to its long-term consequences), but not cardiac/vascular wall damage; is still the biggest TLE-related problem; when non-powered mechanical sheaths are used as first-line tools.

Analysis of Risk Factors for Major Complications of 1500 Transvenous Lead Extraction Procedures with Especial Attention to Tricuspid Valve Damage

Background: Transvenous lead extraction (TLE) is a relatively safe procedure, but it may cause severe complications such as cardiac/vascular wall tear (CVWT) and tricuspid valve damage (TVD). Methods: The risk factors for CVWT and TVD were examined based on an analysis of data of 1500 extraction procedures performed in two high-volume centers. Results: The total number of major complications was 33 (2.2%) and included 22 (1.5%) CVWT and 12 (0.8%) TVD (with one case of combined complication). Patients with hemorrhagic complications were younger, more often women, less often presenting low left ventricular ejection fraction (LVEF) and those who received their first cardiac implantable electronic device (CIED) earlier than the control group. A typical patient with CVWT was a pacemaker carrier, having more leads (including abandoned leads and excessive loops) with long implant duration and a history of multiple CIED-related procedures. The risk factors for TVD were similar to those for CVWT, but the patients were older and received their CIED about nine years earlier. Any form of tissue scar and technical problems were much more common in the two groups of patients with major complications. Conclusions: The risk factors for CVWT and TVD are similar, and the most important ones are related to long lead dwell time and its consequences for the heart (various forms of fibrotic scarring). The occurrence of procedural complications does not affect long-term survival in patients undergoing lead extraction.

Transvenous Lead Extraction without Procedure-Related Deaths in 1000 Consecutive Patients: A Single-Center Experience

Background

Transvenous lead extraction (TLE) is now a first-line technique for the treatment of complications related to cardiac implantable electronic devices. The aim of the study was to demonstrate that it is possible to safely perform difficult TLE procedures with a maximum reduction of peri-procedural major complications.

Methods

A total of 1000 consecutive patients undergoing TLE in a single high-volume center from 2016 to 2019 were studied. All procedures were performed in a hybrid room or operating room by a specialized TLE team. TLE was performed under general anesthesia and monitored by transesophageal echocardiography, and the operating room was suitably equipped for immediate surgical intervention. The effectiveness and safety of the procedures were assessed, with particular emphasis on major complications.

Results

In all, 1952 leads with the mean implant duration of 111.7 ± 77.6 months had been extracted. Complete procedural success of patients was achieved in 95.9% and clinical success in 99.1%. Major complications, predominantly cardiac tamponade (63.3%), occurred in 22 patients (2.2%). Rapid diagnosis and immediate intervention were the key to a 100% survival in patients with this complication.

Conclusion

Performing procedures in a hybrid operating room under general anesthesia in the presence of a cardiac surgeon and with the use of transesophageal echocardiography significantly improves the safety of transvenous lead extraction.