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עמוד בית
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November 2022
Shada Azem MD, Roy Raphael MD, Shir Raibman-Spector MD, Kobi Faierstein MD, Amir Givon MD, Haim Mayan MD

Intravesicular administration of Bacillus Calmette–Guérin (BCG), a live attenuated strain of Mycobacterium bovis, has long been used as adjuvant therapy for treatment of non-muscle invasive bladder carcinoma. BCG is usually well tolerated; however, infectious complications can range from 1–5% of cases. Infectious complications of BCG [1] can be divided into localized disease, which is considered a late onset disease occurring 3 months following treatment such as cystitis, Epididymo-orchitis, and pyelonephritis. Another form is a systemic disease, which is an early onset manifestation including sepsis syndrome that usually occurs directly after treatment and is the most common form of disseminated BCG infection.

January 2016
Amir Givon MD, Natalia Vedernikova MD, David Luria MD, Ori Vatury MD, Rafael Kuperstein MD, Micha S. Feinberg MD, Michael Eldar MD, Michael Glikson MD and Eyal Nof MD

Background: Transvenous lead extraction can lead to tricuspid valve damage. 

Objectives: To assess the incidence, risk factors and clinical outcome of tricuspid regurgitation (TR) following lead extraction.

Methods: We prospectively collected data on patients who underwent lead extraction at the Sheba Medical Center prior to laser use (i.e., before 2012). Echocardiography results before and following the procedure were used to confirm TR worsening, defined as an echocardiographic increase of at least one TR grade. Various clinical and echocardiographic parameters were analyzed as risk factors for TR. Clinical and echocardiographic follow-up was conducted to assess the clinical significance outcome of extraction-induced TR.

Results: Of 152 patients who underwent lead extraction without laser before 2012, 86 (56%) (192 electrodes) had echocardiography results before and within one week following the procedure. New or worsening TR was discovered in 13 patients (15%). Use of mechanical tools and younger age at extraction were found on multivariate analysis to be factors for TR development (P = 0.04 and P = 0.03 respectively). Average follow-up was 22.25 ± 21.34 months (range 8–93). There were no significant differences in the incidence of right-sided heart failure (50% vs. 23%, P = 0.192) or hospitalizations due to heart failure exacerbations (37.5% vs. 11%, P = 0.110). No patient required tricuspid valve repair or replacement. Death rates were similar in the TR and non-TR groups (20% vs. 33%).

Conclusions: TR following lead extraction is not uncommon but does not seem to affect survival or outcomes such as need for valve surgery. Its long-term effects remain to be determined. 

 

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