A 40-year-old endurance athlete presented with intermittent chest tightness during intense exercise. He maintained a vegetarian diet, did not smoke or consume alcohol, and regularly participated in marathon events. His father had experienced a heart attack in his early fifties, but otherwise he considered himself low risk.
Initial investigations appeared reassuring. His treadmill stress test showed no electrocardiographic changes. His lipid profile demonstrated total cholesterol within standard reference ranges, LDL at 100 mg/dL, HDL at 60 mg/dL, and normal triglycerides. Echocardiography revealed preserved cardiac function. He was advised that his symptoms were likely gastrointestinal in origin.
However, subtle clinical clues suggested a need for deeper evaluation. Persistent exertional chest tightness in the presence of a strong family history warranted further investigation beyond routine screening.
Standard stress testing is useful for detecting flow-limiting coronary artery disease but may not identify non-obstructive or early plaque formation. Research published in Circulation notes that many acute coronary events arise from plaques that were previously non-obstructive and therefore may not have triggered abnormalities on stress testing (Libby et al., 2011).
Similarly, traditional lipid panels do not capture all risk factors. Elevated Lipoprotein(a), a genetically determined lipoprotein variant, is independently associated with increased cardiovascular risk regardless of LDL cholesterol levels (Tsimikas, 2017).
In this case, further testing revealed elevated high-sensitivity C-reactive protein (hs-CRP), suggesting vascular inflammation, and significantly elevated Lipoprotein(a).
Inflammation plays a central role in atherosclerosis progression. The CANTOS trial demonstrated that targeting inflammation can reduce cardiovascular events independent of lipid levels (Ridker et al., 2017).
Given the clinical context, coronary CT angiography was performed. Imaging revealed significant narrowing in the left anterior descending artery, along with diffuse plaque in additional vessels.
Coronary CT angiography has been shown to improve detection of subclinical atherosclerosis and can refine risk assessment in selected individuals (SCOT-HEART Investigators, 2015).
This case highlights an important principle: physical fitness does not eliminate inherited or inflammatory risk. Endurance exercise is generally protective, but it does not fully negate genetic predisposition.
Lipoprotein(a), or Lp(a), is largely genetically determined and minimally affected by diet or exercise. Elevated levels are associated with premature coronary artery disease and aortic stenosis (Tsimikas, 2017).
High-sensitivity CRP serves as a marker of systemic inflammation and correlates with cardiovascular event risk. While not diagnostic on its own, elevated hs-CRP can support a more comprehensive risk evaluation.
Individuals with family history of early cardiac events may benefit from structured cardiovascular screening that goes beyond routine lipid panels.
Following diagnosis, management focused on guideline-based cardiovascular risk reduction, including lipid optimisation, inflammation control, and structured exercise monitoring. Serial imaging and risk-factor surveillance were used to monitor progression.
From an integrative care perspective, lifestyle optimisation sleep regulation, stress management, and dietary rhythm remains foundational. Chronic psychological stress has been associated with increased inflammatory burden and cardiovascular risk (Steptoe & Kivimäki, 2012). Patients with elevated inherited risk may require closer follow-up even when traditional metrics appear “normal.”
Individuals seeking personalised long-term monitoring may benefit from a comprehensive heart health assessment and preventive care plan.
This case underscores that “normal” cholesterol levels and reassuring stress tests do not eliminate cardiovascular risk. Family history, inflammation, and genetic markers such as Lipoprotein(a) may significantly influence outcomes.
Preventive cardiology increasingly recognises that early detection, advanced imaging when appropriate, and individualised risk assessment are central to reducing unexpected cardiac events. The goal is not alarm but awareness.
Libby P et al. Inflammation in atherosclerosis. [LINK]
Tsimikas S. Lipoprotein(a) and cardiovascular disease. [LINK]
Ridker PM et al. Anti-inflammatory therapy and cardiovascular risk (CANTOS Trial). NEJM. [LINK]
SCOT-HEART Investigators. Coronary CT angiography and risk stratification. NEJM. [LINK]
Steptoe A, Kivimäki M. Stress and cardiovascular disease. Nat Rev Cardiol. [LINK]
This article is intended for educational purposes only and does not substitute medical consultation. Cardiovascular risk assessment and imaging decisions should be made in consultation with a qualified healthcare professional based on individual risk factors and clinical findings.
