A systematic approach to the evaluation of the coronary microcirculation using bolus thermodilution: CATH CMD

Coronary microvascular dysfunction (CMD) can cause myocardial ischemia in patients presenting with angina without obstructive coronary artery disease (ANOCA). Evaluating for CMD by using the thermodilution technique offers a widely accessible means of assessing microvascular resistance. Through this technique, 2 validated indices, namely coronary flow reserve and the index of microcirculatory resistance, can be computed, facilitating investigation of the coronary microcirculation. The index of microcirculatory resistance specifically estimates minimum achievable microvascular resistance within the coronary microcirculation. We aim to review the bolus thermodilution method, outlining the fundamental steps for conducting measurements and introducing an algorithmic approach (CATH CMD) to systematically evaluate the coronary microcirculation. Embracing a standardized approach, exemplified by the CATH CMD algorithm, will facilitate adoption of this technique and streamline the diagnosis of CMD

Intramural hematoma appearing as a new lesion after coronary stenting

Case study - A 51-year-old man with hypertension and hyperlipidemia presented with exertional chest pain and underwent a stress echocardiogram that showed anterior and lateral ischemia

Prevention of Cardiovascular Disease in Women With Pregnancy‐Related Risk Factors: A Prospective Women's Heart Clinic Study

Background Hypertensive disorders of pregnancy, gestational diabetes, and having a small‐for‐gestational‐age baby are known to substantially increase a woman's risk of cardiovascular disease. Despite this, evidence for models of care that mitigate cardiovascular disease risk in women with these pregnancy‐related conditions is lacking. Methods and Results A 6‐month prospective cohort study assessed the effectiveness of a multidisciplinary Women's Heart Clinic on blood pressure and lipid control in women aged 30 to 55 years with a past pregnancy diagnosis of hypertensive disorders of pregnancy, gestational diabetes, or a small‐for‐gestational age baby in Melbourne, Australia. The co‐primary end points were (1) blood pressure <140/90 mm Hg or <130/80 mm Hg if diabetes and (2) total cholesterol to high‐density lipoprotein cholesterol ratio <4.5. The study recruited 156 women with a mean age of 41.0±4.2 years, 3.9±2.9 years from last delivery, 68.6% White, 20.5% South/East Asian, and 80.5% university‐educated. The proportion meeting blood pressure target increased (69.2% to 80.5%, P=0.004), with no significant change in lipid targets (80.6% to 83.7%, P=0.182). Systolic blood pressure (−6.9 mm Hg [95% CI, −9.1 to −4.7], P<0.001), body mass index (−0.6 kg/m2 [95% CI, −0.8 to −0.3], P<0.001), low‐density lipoprotein cholesterol (−4.2 mg/dL [95% CI, −8.2 to −0.2], P=0.042), and total cholesterol (−4.6 mg/dL [95% CI, −9.1 to −0.2] P=0.042) reduced. Heart‐healthy lifestyle significantly improved with increased fish/olive oil (36.5% to 51.0%, P=0.012), decreased fast food consumption (33.8% to 11.0%, P<0.001), and increased physical activity (84.0% to 92.9%, P=0.025). Conclusions Women at high risk for cardiovascular disease due to past pregnancy‐related conditions experienced significant improvements in multiple cardiovascular risk factors after attending a Women's Heart Clinic, potentially improving long‐term cardiovascular disease outcomes. Registration URL: https://www.anzctr.org.au; Unique identifier: ACTRN12622000646741