Examkin

Soru

Zorluk: ZorDepressive Disorders

A 62-year-old man comes to the cardiology clinic for a routine follow-up 6 weeks after being hospitalized for an acute anterior wall myocardial infarction, for which he received a drug-eluting stent. His cardiac function has stabilized, and he is compliant with his medication regimen, which includes aspirin, clopidogrel, metoprolol, lisinopril, and atorvastatin. Today, his wife expresses deep concern about his emotional well-being since discharge. The patient states, 'My life is basically over. I am just a burden to my family now, and there is no point in going on.' He reports a 10-lb (4.5-kg) weight loss due to poor appetite and says he wakes up every day at 3:00 AM unable to fall back asleep. He admits to recurrent thoughts that his family would be better off if he were dead, though he lacks a specific suicide plan. His physical examination is unremarkable, and an electrocardiogram shows normal sinus rhythm with a QTc interval of 420 ms. Which of the following is the most appropriate next step in the pharmacologic management of this patient?

  1. Initiate sertralineCevap
  2. B
    Initiate fluoxetine
  3. C
    Initiate citalopram at a dosage of 40 mg daily
  4. D
    Initiate amitriptyline
  5. E
    Initiate venlafaxine

Cevap

Initiate sertraline
The correct answer is to initiate sertraline. This patient is presenting with a severe episode of major depressive disorder (MDD) following a myocardial infarction (MI), a condition that independently increases cardiovascular mortality risk. Selective serotonin reuptake inhibitors (SSRIs) are the first-line treatment. Among the SSRIs, sertraline and escitalopram are considered the safest and most efficacious choices for patients with ischemic heart disease, as established by the SADHART trial. Furthermore, sertraline has minimal inhibitory effects on cytochrome P450 enzymes. This is crucial because the patient is taking clopidogrel, a prodrug that requires activation by the hepatic enzyme CYP2C19. Sertraline will not interfere with this activation, ensuring the patient's dual antiplatelet therapy remains effective.

Adım Adım Çözüm

1
Diagnose the patient's psychiatric condition based on the clinical presentation.
The patient meets criteria for Major Depressive Disorder (MDD) with melancholic features (depressed mood, guilt, significant weight loss, early morning awakening, and passive suicidal ideation lasting longer than 2 weeks).
Establishing the correct psychiatric diagnosis is required to determine the indication for pharmacotherapy.
2
Evaluate the patient's medical history and current medication regimen for potential contraindications.
The patient is 62 years old, 6 weeks post-myocardial infarction with a recent stent, and is taking dual antiplatelet therapy (aspirin and clopidogrel).
Medical comorbidities and concurrent medications dictate the safety profile required for the chosen psychotropic agent.
3
Select the most appropriate antidepressant that lacks adverse cardiovascular effects and avoids dangerous drug-drug interactions.
Sertraline is selected because it has a proven cardiovascular safety profile in post-MI patients and minimally inhibits CYP450 enzymes.
Other agents carry risks of QT prolongation (high-dose citalopram), arrhythmias (TCAs), hypertension (SNRIs), or dangerous CYP2C19 inhibition preventing clopidogrel activation (fluoxetine).

Anahtar Kavram

Pharmacologic management of major depressive disorder in patients with recent myocardial infarction and concurrent cardiovascular medications.
Tahmini Süre:1m 30s
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Konular

Depressive Disorders

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