Case 2

Incidental Genomic Finding

Summary

Video consultation following incidental genomic finding of MYH7 pathogenic variant associated with hypertrophic cardiomyopathy. Asymptomatic but anxious. Requests urgent clarification and referral. 

Past medical history

  • Hypercholesterolaemia

DH

  • Atorvastatin 20 mg ON
Background

Participated in research genetic screening for familial hypercholesterolaemia. No prior cardiology assessment beyond lipid monitoring. No echocardiogram performed previously. No known murmurs documented. Two children aged 14 and 16. 

Examination findings

Examination performed 1 week ago by Nurse Daniel Roberts, Practice Nurse. Observations: BP 126/78 mmHg, pulse 74 regular. Cardiovascular examination: normal heart sounds, no murmurs detected on auscultation in primary care setting. No peripheral oedema. Oxygen saturation 98% on room air. Patient appeared anxious but not in distress. No ECG performed in practice. 

Patient
James Walker
Age 42
Observations

BP

128/80 mmHg (2 months ago)

BMI

27

Smoking Ex-smoker

(10 yrs)

Alcohol

8 units/week

Allergies

NKDA

Patient history

You are a 42-year-old man attending a scheduled video consultation to discuss an incidental finding from genomic testing performed as part of a cardiology research study. Six months ago, you were enrolled in a research programme investigating familial hypercholesterolaemia because of elevated cholesterol levels. You were recently informed by letter that an incidental pathogenic variant in the MYH7 gene associated with hypertrophic cardiomyopathy (HCM) was identified. You were advised to contact your GP to discuss next steps. 

You are not currently experiencing chest pain, syncope, or palpitations. However, you do report occasional mild exertional breathlessness when climbing stairs, which you previously attributed to being unfit. No episodes of fainting. No documented arrhythmias. No known heart murmur. No lower limb swelling. 

There is no known family history of sudden cardiac death. Your father died at 68 from a myocardial infarction. No known cardiomyopathy diagnoses in the family. You have two teenage children and are extremely concerned about what this means for them. 

You are confused and distressed because you were not expecting this result and do not fully understand its implications. You are worried about sudden cardiac death and whether you should stop exercising immediately. You have read online that HCM can cause collapse during sports and are now fearful of physical activity. 

You feel anxious that the NHS did not contact you proactively and you are unsure who is responsible for follow-up. You want clear answers about your own risk, your children’s risk, insurance implications, and whether you need immediate specialist assessment.

Impact on life & function

Since receiving the letter, you have reduced your physical activity and stopped attending the gym. You are preoccupied with thoughts about your heart and feel distracted at work. Sleep is disturbed by worry about sudden death. Your partner is concerned but trying to reassure you. You feel uncertain and lack confidence about what to do next. 

Ideas

You believe you may be at imminent risk of sudden cardiac death. 

Concerns

You are concerned that you could collapse unexpectedly. You are worried about your children inheriting the condition. You also want to know whether this affects life insurance and driving. If the GP appears uncertain or minimises the finding, you become more anxious. 

Expectations

You expect urgent cardiology referral and detailed explanation of the condition. If provided with a structured explanation about incidental findings, penetrance, need for confirmatory clinical evaluation, and referral pathways, you will feel reassured but still require clear next steps.  

Red flag symptoms and occupational hazards

You deny syncope, presyncope, significant palpitations, chest pain, orthopnoea, paroxysmal nocturnal dyspnoea, or lower limb oedema. No known episodes of collapse. No occupational heavy physical exertion beyond moderate gym exercise. No stimulant drug use. 

Tick the indicators you would have demonstrated

Grading: Clear pass = 3 · Marginal pass = 2 · Marginal fail = 1 · Clear fail = 0 

Case Title: Difficult Video Consultation – Managing Incidental Pathogenic Variant in MYH7

Data-gathering, technical and assessment skills

Score: 0/3

Clinical Management Skills

Score: 0/3

Interpersonal skills

Score: 0/3

1
Incidental pathogenic variant associated with HCM
Relevance

Recognising the significance of incidental genomic findings and arranging appropriate cardiology assessment for possible hypertrophic cardiomyopathy. 

Curriculum mapping

Genomic Medicine; Care of People with Cardiovascular Problems. 

2
Patient non-attendance and shared decision-making
Relevance

Managing psychological distress after unexpected genetic testing results using clear explanation, reassurance and safety-netting. 

Curriculum mapping

Person-Centred Care; Consultation and Communication Skills. 

3
Microcytic anaemia in an older man
Relevance

Discussing inherited risk, genetic counselling and implications for family members in suspected hereditary cardiac disease. 

Curriculum mapping

Genomic Medicine; Working with Families and Carers.