Management of Cardiac Implantable Electronic Device–Associated Tricuspid Valve Endocarditis

Complete Hardware Removal

Class I recommendation: All patients with definite CIED infection—including those with lead or tricuspid‑valve endocarditis or sepsis—must undergo complete removal of the generator and all leads (subcutaneous, transvenous, and epicardial) because retained hardware leads to unacceptably high relapse rates. 1
The removal requirement applies irrespective of whether the vegetation is attached to the lead itself or involves the tricuspid valve. 4
Even a localized pocket erosion indicates contamination of the entire system; therefore the whole CIED must be extracted. 4
When valve surgery is indicated, CIED extraction must be performed before or during valve repair/replacement to eliminate the nidus of infection. 1

Percutaneous lead extraction is the preferred technique, even for large vegetations (≥2 cm). 1
Extraction should be performed in high‑volume centers with on‑site cardiothoracic surgery backup. 1
Clinical experience shows that pulmonary embolism is not a common complication of percutaneous removal of vegetations ≥2 cm. 1
Surgical extraction is reserved for cases in which significant hardware remains after percutaneous attempts. 1

The duration of antimicrobial therapy follows prosthetic‑valve endocarditis protocols. 5
Minimum 2 weeks of intravenous antibiotics after device extraction is required for patients with bloodstream infection. 5
4–6 weeks of intravenous therapy is recommended for complicated infections (e.g., endocarditis, septic thrombophlebitis, osteomyelitis, or persistent bacteremia despite removal). 2
If blood cultures remain positive ≥24 h after extraction, a minimum of 4 weeks of intravenous therapy is advised even when TEE shows no vegetations. 5
Empiric vancomycin should be started to cover both oxacillin‑susceptible and oxacillin‑resistant staphylococci, which cause the majority of CIED infections. 1
Switch to cefazolin or nafcillin once susceptibilities confirm oxacillin‑susceptible Staphylococcus spp. 1
Continue vancomycin for oxacillin‑resistant organisms or when β‑lactams are contraindicated. 1
Device removal must not be delayed for the initiation of antimicrobial therapy; extraction proceeds regardless of timing. 1

Negative blood cultures are mandatory before any new device is implanted. 5
For isolated lead vegetations (no valve involvement), re‑implantation is permissible after ≥72 h of consecutive negative cultures following extraction. 5
When a tricuspid‑valve vegetation is present, re‑implantation should be delayed until 14 days after the first negative blood culture. 5
In cases of generator‑pocket infection or erosion without bacteremia, the same ≥72 h culture‑negative interval applies. 5
The new device must not be placed ipsilateral to the extraction site; a contralateral implantation is strongly preferred to reduce relapse risk. 3
Alternative implantation sites include the iliac vein or an epicardial system; the latter is especially considered when a new CIED is needed after valve surgery. 3

Transesophageal echocardiography (TEE) is essential, offering >90 % sensitivity for detecting lead vegetations, whereas transthoracic echocardiography (TTE) detects only ~30 %. 7
In prosthetic‑valve–like settings, TTE is inadequate for assessing perivalvular infection; a negative TTE does not exclude CIED infection when clinical suspicion is high—proceed directly to TEE. 7
If suspicion persists after an initial TEE, a repeat TEE 3–5 days later is recommended. 7
Blood cultures must be obtained from all patients after device removal and repeated to guide the timing of re‑implantation. 5

Do not rely on antibiotics alone without device removal; cure rates are low and relapse is common. 4
Do not assume TTE is sufficient for ruling out infection; its low sensitivity can miss >70 % of cases. 1
Do not re‑implant on the same side as the extracted system; this markedly increases the risk of recurrent infection. 1
Do not postpone extraction while awaiting antimicrobial therapy; removal should be performed promptly. 1
Do not assume large vegetations (>2 cm) require surgical extraction; percutaneous removal is safe and effective even for sizable lesions. 1