Case StudiesQuiz of the month – June 2022
Take our patient case study quiz specially curated for you by our Faculty Member, Prof. Chern-En Chiang.
Prof. Chern-En Chiang
First published: June 7, 2022
Case Study: A 67-year-old male comes to the ER with the complaint of excruciating anterior chest pain for 1-hour. The parameters measured in the ER are as follows:
Vital parameters | Blood pressure: 146/78 mm Hg Heart rate: 92/min Respiratory rate: 16/min |
ECG shows ST elevation over V1-V3, suggesting acute anterior MI, and pathological Q waves over leads II, III and aVF. Toponin I was 15.40 ng/mL. Urgent coronary angiograph shows total occlusion over LAD-M, patent left main, patent left circumflex, and 80% stenosis over RCA-M. Left ventriculogram showing moderate hypokinesis over anterior septal area and mild hypokinesis over inferior wall with an EF of 44%. Primary PCI with 2 DES over LAD-M and RCA-M was performed uneventfully.
Past history | Inferior myocardial infarction 4 years with medical treatment HT for more than 10 years with regular treatment Type 2 diabetes for 8 years Denied smoking Obesity with a BMI of 30.5 |
Lab data | Na 134 meq/L, K 4.2 meq/L Cr 1.05 mg/dL, eGFR 73 mL/min (CKD-EPI), UACR 350 mg/g ALT 32 mg/dL HbA1c 8.3% LDL-C 98 mg/dL, HDL-C 28 mg/dL, triglyceride 259 mg/dL Toponin I 15.40 ng/mL, hs-CRP 18.2 mg/dL Lp(a) 83 mg/dL [upper limit of normal Lp(a) = 30 mg/dL] |
Medication history
before admission | Amlodipine 5 mg OD, valsartan 160 mg OD, bisoprolol 5 mg OD Metformin 850 mg BD Aspirin 81 mg OD Atorvastatin 20 mg OD |
Investigation | Acute MI after successful PCI, and this is a second MI (previous inferior MI) Post-MI LV dysfunction (LVEF of 44%) Uncontrolled diabetes (HbA1c 8.3%) Suboptimal control of lipid levels (LDL-C 98 mg/dL) A very high level of Lp(a) (83 mg/dL) |
Case StudiesQuiz of the month – April 2022
Take our patient case study quiz specially curated for you by our Faculty Member, Prof. Samer Ellaham.
First published: April 7, 2022
Case Study: A 63-year-old male presents with central chest and vague left shoulder pain precipitated by a brisk walk up a steep hill. His pain resolved with rest. He is known to have three vessel coronary artery disease based on two previous cardiac catheterizations. He does more than 40 minutes of cardiovascular exercise at least four days a week, has no history of tobacco or drug use, and does not have diabetes.
Vital Parameters | Blood pressure: 110/65 mm Hg Resting heart rate: 65 Body mass index (BMI): 24 |
Medications | 40 mg of Atorvastatin, daily 81 mg of aspirin, daily |
Investigations | Lipid Profile: High-density lipoprotein (HDL) = 65 mg/dl Low-density lipoprotein (LDL) = 50 mg/dl |
The repeat cardiac catheterization reveals greater than 95% occlusion of his left main coronary, left circumflex, left anterior descending, and posterior descending arteries; and right main coronary artery has approximately 50% stenosis. Based on the diagnosis (high risk of CVD/CHD), he was treated with four-vessel coronary artery bypass grafting surgery, after which he returned to his functional baseline of vigorous exercise without angina. However, as The European Atherosclerosis Society consensus panel recommends, screening for anyone at an intermediate or high risk of CVD/CHD with an Lp(a) goal level of < 50 mg/dl, the cardiologist recommended measurement of Lp(a) which revealed an elevated Lp(a) level of 230 nmol/L, which is in the highest quartile.
Case StudiesQuiz of the month – January 2022
Take our patient case study quiz specially curated for you by our Faculty Member, Prof. Christopher Cannon.
First published: January 10, 2022
Case Study: David is a 63-year-old man with a 20-year history of hypercholesterolemia and 5-year history of prediabetes. When the hypercholesterolemia was diagnosed, his LDL-C was 256 mg/dL. Since then, he has been managed primarily with high-intensity statin treatment (rosuvastatin 40 mg/d), dietary modification (low saturated fat diet), and daily exercise. One year ago, cardiology workup identified evidence of ASCVD (see chart below). At the time, David’s LDL-C was 162 mg/dL on treatment with maximal dose rosuvastatin, so the cardiologist recommended adding ezetimibe 10 mg qd. After 6 months of treatment, David’s LDL-C fell to 134 mg/dL.
Medical History | Hypercholesterolemia, 20 years Prediabetes, 5 years |
Vitals | Heart rate: 72 bpm Blood pressure: 118/74 mmHg Respiration rate: 18 bpm Temp: 98.6 |
Physical examination | Heart: normal sinus rhythm Lungs: clear to auscultation Extremities: no edema Skin: unremarkable Joints: no tendon xanthomas BMI: 23.5 kg/m2 |
Investigations | Today: Random blood glucose: 103 mg/dL A1C: 5.8% [normal <5.7] eGFR: 77 mL/min/1.73m2 Lipid panel: – LDL-C 134 mg/dL – HDL-C 52 mg/dL – Triglycerides 68 mg/dL – Total cholesterol 176 mg/dL One year ago: CT angiogram: high coronary artery calcium, nonocclusive atherosclerosis |
Medications | Rosuvastatin 40 mg qd Ezetimibe 10 mg qd |
Based on his diagnosis of established ASCVD, the cardiologist identified an LDL-C goal <70 mg/dL and added a PCSK9 inhibitor.
It has been 6 months since he started the PCSK9 inhibitor. He returned to the clinic today for a checkup. Workup identifies LDL-C 47 mg/dL. David reports good adherence to therapy and no side effects of treatment with rosuvastatin 40 mg, ezetimibe 10 mg qd, and a PCSK9 inhibitor.
