Spontaneous coronary artery dissection: a difficult journey from emergency coronary artery bypass grafting to left ventricular assist device.

Background: Excluding spontaneous coronary artery dissection (SCAD) as an aetiology of acute coronary syndrome in young adults is imperative. Case summary: A previously healthy 39-year-old woman experienced sudden severe chest pain, ST-segment elevation on electrocardiogram, necessitating high-dose aspirin and urgent transfer to a revascularization centre. Suffering ventricular tachycardia (VT) and ventricular fibrillation (VF), she underwent two rounds of advanced life support and venoarterial extracorporeal membrane oxygenation. Diagnosed with left main coronary artery (LMCA) SCAD, she was initially started on conservative therapy for declining left ventricular ejection fraction. However, she continued to experience an escalating anginal symptoms, worsening biomarkers, and LMCA SCAD progression, which urged the need for surgical intervention with coronary artery bypass graft surgery (CABG). Following her CABG, she experienced a worsening of her functional mitral regurgitating, which she underwent transcatheter edge-to-edge repair of her severe mitral regurgitation. Despite being listed for orthotopic heart transplantation (OHTx), her low body mass index and elevated antibodies necessitated the HeartMate III left ventricular assist device (LVAD) for bridge to transplant. After treating frequent VT episodes with medications, she eventually received a LVAD as a bridge to cardiac transplantation. Within 1 year of her receiving LVAD, she underwent a successful OHTx. Discussion: The pathogenesis of SCAD involves intramural haematoma formation through intimal tears or vasa vasorum haemorrhage. Adverse outcomes that could occur in SCAD patients include cardiac arrest, cardiogenic shock, reduced left ventricle systolic function, and occasionally serious cardiac arrhythmia-such as VF-which can lead to sudden cardiac death. Although most SCAD cases heal spontaneously, revascularization can be considered in case of worsening SCAD progression. Advanced therapeutic intervention including mechanical circulatory support and OHTx should be considered in refractory cases.

The Cardiovascular Risks Associated with Aromatase Inhibitors, Tamoxifen, and GnRH Agonists in Women with Breast Cancer.

PURPOSE OF REVIEW: Cardiovascular disease accounts for up to 10% of all-cause mortality in women with a diagnosis of breast cancer, and the causes for this are multifaceted. Many women at risk of or with a diagnosis of breast cancer are on endocrine-modulating therapies. It is therefore important to understand the effect of hormone therapies on cardiovascular outcomes in breast cancer patients to mitigate against any adverse effects and to identify those most at risk so that they can be proactively managed. Here we discuss the pathophysiology of these agents, their effect on the cardiovascular system, and the latest evidence on their cardiovascular risks association. RECENT FINDINGS: Tamoxifen appears to be cardioprotective during treatment but not over the longer term, while the effect of AIs on cardiovascular outcomes remains controversial. Heart failure outcomes remain understudied, and the cardiovascular effects of gonadotrophin-releasing hormone agonists (GNRHa) in women need further research, especially since data from men with prostate cancer have indicated an increased risk of cardiac events in GNRHa users. There remains a need for a greater understanding of the effects of hormone therapies on cardiovascular outcomes in breast cancer patients. Further areas of research in this area include developing evidence to better define the optimal preventive and screening methods for cardiovascular effects and the risk factors for patients on hormonal therapies.

Neurological disability among adults following traumatic spinal fractures in Saudi Arabia: a retrospective single-center medical record review.

BACKGROUND: A traumatic spinal fracture (TSF) is a serious condition that has a tremendous impact on patients and their families. Understanding the causes and patterns of TSF is critical in developing prevention programs. OBJECTIVES: Identify causes and patterns of TSF and explore predictors of neurological disability in Saudi Arabia. DESIGN: A retrospective medical record review. SETTING: Level 1 trauma center in Riyadh. PATIENTS AND METHODS: The analysis included all consecutive patients who met the inclusion criteria for any acute TSF in patients 18 years of age and older from January 2001 to January 2016. A multivariate logistic regression model was used to identify predictors of neurological disability following TSF. MAIN OUTCOME MEASURES: Neurological disability in patients sustaining TSF. SAMPLE SIZE: 1128 patients. RESULTS: Of 1128 patients, 971 patients (86%) were male with a mean (SD) age 34.4 (16.6) years. The most common mechanism of injury was motor vehicle accidents (88.4%). Cervical spine was the most commonly affected region (48%, n=468) with a mortality rate of 7.6%. Neurological disability occurred in 74 (6.7%) patients, and 41 (8.7%) of those with cervical fractures died in the hospital. The Injury Severity Score was a significant predictor of neurological disability following TSF. CONCLUSION: A high proportion of neurological disability following TSF was found. Further studies should attempt to improve the docu.mentation rate of seatbelt status in all traumatic cases including mild injuries. This data will increase our understanding of adult TSF and possibly facilitate injury prevention strategies. LIMITATIONS: Single hospital and may not be generalizable. CONFLICT OF INTEREST: None.