Deep Vein Thrombosis in the Humeral Vein After Implantable Cardioverter-Defibrillator Implantation: A Family Physician's Perspective

Upper extremity deep vein thrombosis (DVT) is an uncommon, under-reported, and difficult-to-diagnose condition. Although the strong provoking risk factors of venous thromboembolism are well described in the literature, the majority of cases are provoked by weak risk factors or are even considered unprovoked. In this case report, we describe a rare case of a brachial DVT in a woman in her 40s following implantable cardioverter-defibrillator (ICD) implantation. In her first evaluation, slight left arm edema and brachialgia were noted, and physiotherapy was prescribed. One month later, the patient was reevaluated because her complaints did not resolve, and an upper extremity venous ultrasound was done to exclude complications due to ICD implantation. The ultrasound identified an old DVT, which had been completely recanalized. The patient was then referred to a vascular surgery specialty consultation, which confirmed the diagnosis, and an anticoagulant was prescribed for three months. The symptoms resolved, and the patient did not report any more pain.

[Lead extraction in cardiac implantable electronic devices]

Lead extraction due to infection or lead dysfunction has become more important in recent years. Patients with high risk of severe and life-threatening complications should only undergo surgery in experienced centers where appropriate personnel and equipment are available. In this review, different techniques and methods to safely and successfully perform transvenous lead extraction are summarized.

Removal of a Hickman catheter using a laser sheath

A 31-year-old female with 10 years indwelled Hickman catheter for idiopathic pulmonary hypertension presented infectious findings. We decided to remove it but simple traction did not work. Although it was an off labeled use, we could remove it using a laser sheath and snare technique without any complication.

Recurrent Bacteremia After Heart Transplantation Due to Abandoned Lead Fragment in an Anonymous Vein-A Case Report

Heart transplantation (HTx) represents the "gold standard" in end-stage heart failure therapy. Due to their severe heart failure and for prevention of sudden cardiac death, the majority of patients presenting for HTx will have a history of an implanted cardioverter-defibrillator (ICD). Usually, within the scope of HTx, all cardiac-implanted electronic device components are removed. In rare cases these efforts fail and some material remains. The abandoned lead fragments can cause serious complications. The case presented herein involves a patient with recurrent bacteremia after successful HTx originating from an abandoned and infected lead fragment. In 2016, a 64-year-old man received a donor heart transplant due to end-stage heart failure. Unfortunately, during the procedure, not all components of an ICD implanted in 2007 could be removed. An initially event-free period was followed by recurrent fever attacks and staphylococcal bacteremia was diagnosed. After an extensive search, the source of the bacteremia was identified by positron emission tomography-computed tomography (PET-CT), and percutaneous extraction of the abandoned and infected ICD lead fragment was scheduled. The fragment was extracted using a minimally invasive approach via percutaneous femoral vein access. The patient was discharged 3 days later, with no further complications. This case highlights the need for conscientious and complete removal of foreign material in the HTx setting. Difficult-to-diagnose sources of infection could be reliably identified by PET-CT. When required, extraction of the foreign body should be done using a minimally invasive approach.

Transvenous Lead Extraction: A Clinical Commentary for Anesthesiologists

With increasing use of cardiovascular implantable electronic devices, the need for lead extractions has increased to an annual volume of more than 10,000 extractions worldwide. This article provides a focused clinical commentary on the perioperative management, identification, and treatment of life-threatening complications associated with lead extractions. In addition, a summary of indications, techniques, and lead extraction complications is provided. Although uncommon, lead extractions are associated with a consistent rate of major procedure-related complications and mortality. Major life-threatening complications include vascular laceration, cardiac avulsion, hemothorax, pericardial effusion, and cardiac arrest. Comprehensive preoperative risk assessment and adequate planning and preparedness are crucial to decreasing all procedure-related adverse events. The location of the procedure (electrophysiology suite v hybrid operating room) and the nature of cardiac surgical backup are determined after meticulous risk stratification. In addition to decisions on vascular access, invasive monitoring, and modality of rhythm support, transesophageal echocardiography plays a crucial role in early diagnosis, timely management, and potential prevention of these complications.

Anesthetic Management of Laser Lead Extraction for Cardiovascular Implantable Electronic Devices

Cardiovascular implantable electronic devices (CIEDs) play a significant role in the modern management of cardiovascular disease. CIEDs include implantable pacemakers (PMs), implantable cardioverter-defibrillators (ICDs), and cardiac resynchronization therapy (CRT) devices. These devices improve the quality of life of their recipients and help reduce the incidence of sudden cardiac death. Traditionally, CIEDs have been reliant on the use of transvenous endocardial leads to directly connect with the heart. Over time, these endovascular leads may become endothelialized rendering removal extremely difficult. As the indications for CIEDs expands and with the continuing evolution of these devices, the number of patients requiring explantation for device recall, malfunction, and infection continues to increase. In this manuscript, we review the most common CIEDs, the indications and process of lead removal/device explantation, potential complications associated with the procedure and the anesthetic management of these patients.

Percutaneous occlusion balloon as a bridge to surgery in a swine model of superior vena cava perforation

BACKGROUND

Superior vena cava (SVC) perforation is a rare but potentially fatal complication of transvenous lead removal.

OBJECTIVE

The aim of this study was to evaluate the feasibility of hemodynamic stabilization using an occlusion balloon during SVC tear in a porcine model.

METHODS

A surgically induced SVC perforation was created in Yorkshire cross swine (n = 7). Three animals were used to develop and test surgical repair methods. Four animals were used to evaluate hemodynamic, behavioral, and neurological effects up to 5 days after SVC tear and repair. An occlusion balloon (Bridge Occlusion Balloon, Spectranetics Corporation, Colorado Springs, CO) was percutaneously delivered through the femoral vein to the location of the injury and inflated. Once hemodynamic control was achieved, the perforation was surgically repaired.

RESULTS

After SVC perforation and clamp release, the rate of blood loss was 7.0 ± 0.8 mL/s. Mean time from SVC tear to occlusion balloon deployment was 55 ± 12 seconds, during which mean arterial pressure decreased from 56 ± 2 to 25 ± 3 mm Hg and heart rate decreased from 76 ± 7 to 62 ± 7 beats/min. After the deployment of the occlusion balloon, the rate of blood loss decreased by 90%, to 0.7 ± 0.2 mL/s. The mean time of balloon occlusion of the SVC was 16 ± 4 minutes and hemodynamic measures returned to baseline levels during this time. Study animals experienced no major complications, demonstrated stable recovery, and exhibited normal neurological function at each postoperative assessment.

CONCLUSION

Endovascular temporary balloon occlusion may be a feasible option to reduce blood loss, maintain hemodynamic control, and provide a bridge to surgery after SVC injury.

Creation of the sole regional laser lead extraction program serving Atlantic Canada: initial experience

BACKGROUND

An increasing need for laser lead extraction has grown in parallel with the increase of implantation of pacing and defibrillating devices. We reviewed the initial experience of a regional laser-assisted lead extraction program serving Atlantic Canada.

METHODS

We retrospectively reviewed the cases of all consecutive patients who underwent laser lead extraction at the Maritime Heart Centre in Halifax, NS, between 2006 and 2015. We conducted univariate and Kaplan-Meier survivorship analyses.

RESULTS

During the 9-year study period, 108 consecutive patients underwent laser lead extractions (218 leads extracted). The most common indication for extraction was infection (84.3%). Most patients were older than 60 years (73.1%) and had leads chronically implanted; the explanted leads were an average of 7.5 ± 6.8 years old. Procedural and clinical success (resolution of preoperative symptoms) rates and mortality were 96.8%, 97.2%, and 0.9%, respectively. Sternotomy procedures were performed in 3 instances: once for vascular repair due to perforation and twice to ensure that all infected lead material was removed. No minor complications required surgical intervention. Survival after discharge was 98.4% at 30 days and 94% at 12 months.

CONCLUSION

Atlantic Canada's sole surgical extraction centre achieved high extraction success with a low complication rate. Lead extraction in an operative setting provides for immediate surgical intervention and is essential for the survival of patients with complicated cases. Surgeons must weigh the risks versus benefits in patients older than 60 years who have chronically implanted leads (> 1 yr) and infection.

[Percutaneous lead extraction. Complications and their management]

BACKGROUND

Percutaneous lead extraction represents one of the most difficult and challenging interventions in the therapy with cardiac implantable electronic devices (CIEDs). Despite the progress in outcome and safety of these procedures in the last decade, the first published results of the ELECTRa registry point out that the risk of life-threatening complications should not be underestimated. Therefore, pre-operative screening for indications, present infections, pacemaker dependency, age and type of implanted leads, previous cardiac surgery and presence of anatomic variations are prerequisite to assess the individual operation risk.

RESULTS

Apart from the decision for any particular operative approach, the risk-adjusted settings should be selected in order to enable intraoperative escalation of extraction methods, if needed. A good theoretical knowledge of potential perioperative problems and complications as well as the intraoperative use of TEE enables early detection and management of complications. Furthermore, preoperative arrangements with other professionals and a team approach in emergency management enable fast and structured action when needed, thus, reducing mortality in case of life-threatening complications.

Permanent pacing in patients without upper limb venous access: a review of current techniques

Permanent transvenous cardiac pacing is usually accomplished through the upper limb veins. When these are occluded, several other vascular access options exist which include the internal jugular, external jugular, femoral and iliac veins as well as more proximal access of the subclavian veins. Anterograde and retrograde techniques to restore subclavian venous patency has been described. A review of these approaches is undertaken, with a discussion of their pros and cons. Familiarity with these techniques will enable the implanter to perform transvenous pacing when faced with limited vascular access.