Should patients who use illicit drugs be offered a second heart-valve replacement?

Intravenous drug users (IVDUs) have an elevated risk of contracting infectious endocarditis. Most of them have good effect from medical treatment, but some will need valve replacement. Until a few years ago, our hospital withheld valve surgery if patients with intravenous drug dependency and infectious endocarditis came to need a second valve replacement. However, there are no consensus guidelines for treatment of this group of patients, and a dearth of data on the effects and benefits of interventions. Using a method of ethical analysis, we here discuss whether it is appropriate to offer valve surgery to drug users for a second time.

Transcatheter aortic valve implantation: recommendations for practice based on a multidisciplinary review including cost-effectiveness and ethical and organizational issues.

Transcatheter aortic valve implantation (TAVI) is a relatively new technology for the treatment of severe and symptomatic aortic valve stenosis. TAVI offers an alternative therapy for patients unable to be treated surgically because of contraindications or severe comorbidities. It is being rapidly dispersed in Canada, as it is worldwide. The objective of this article is to present our recommendations for the use of TAVI, based on a multidisciplinary evaluation of recently published evidence. We systematically searched and summarized published data (2008-2011) on benefits, risks, and cost-effectiveness of TAVI. We also examined ethical issues and organizational aspects of delivering the intervention. We discussed the soundness and applicability of our recommendations with clinical experts active in the field. The published TAVI results for high-risk and/or inoperable patients are promising in terms of survival, function, quality of life, and cost-effectiveness, although we noted large variability in the survival rates at 1 year and in the frequency of important adverse outcomes such as stroke. Until more data from randomized controlled trials and registries become available, prudence and discernment are necessary in the choice of patients most likely to benefit. Patients need to be well-informed about gaps in the evidence base. Our recommendations support the use of TAVI in the context of strict conditions with respect to patient eligibility, the patient selection process, organizational requirements, and the tracking of patient outcomes with a mandatory registry.

Aortic valve replacement in a Jehovah's Witness: a case of multi-disciplinary clinical management for bloodless surgery.

An 81-year-old female Jehovah's Witness (JW) patient with severe aortic stenosis required aortic valve replacement (AVR). However, the patient's religious beliefs precluded the use of primary blood components. Since the definitive treatment of AVR required bloodless open heart surgery, careful peri-operative plans were set forth by a multi-disciplinary team involving the cardiothoracic surgeon, haematologist and anaesthetist. The patient went on to successfully recover postoperatively. This case highlights: 1) The importance of carefully navigating through the most recent clinical and ethical protocol involved in the surgical management of JW's. 2) The importance of preparing individually tailored pre, intra and postoperative plans that are delivered through a multi-disciplinary clinical team to ensure the best and safest possible outcomes.

Do cardiologists and cardiac surgeons need ethics? Achieving happiness for a drug user with endocarditis.

Ethical dilemmas are commonplace in clinical cardiology. There has been a recent focus on ethical behaviour of cardiologists and debate about resource allocation and cost-effectiveness of new technologies. The case of an intravenous drug addict, with native aortic valve endocarditis complicated by a cerebral abscess and severe aortic regurgitation, is presented to illustrate some common ethical and moral dilemmas. The predominant theories in medical ethics, including the "Four-Principles Approach," is discussed, and a model to translate these ethical theories into a clinical decision-making tool is presented.