Cardiovascular Medication Management

Introduction to Beta-Blocker Titration

The European Society of Cardiology and the American College of Cardiology recommend initiating beta-blockers, such as bisoprolol, 7-30 days before surgery, with titration to achieve a resting heart rate of 60-70 beats/min and systolic blood pressure >100 mmHg, to reduce perioperative cardiac events 1, 2
The DECREASE trial demonstrated significant reduction in perioperative cardiac events using bisoprolol started at least 7 days preoperatively with careful titration, as noted by the American College of Cardiology 2

The recommended titration interval for bisoprolol is every 1-2 weeks, allowing for assessment of tolerability and efficacy, as supported by the European Heart Journal and the European Society of Cardiology 1
The POISE trial highlighted the importance of careful titration, as rapid initiation of high-dose beta-blockers perioperatively increased risk of stroke and mortality 2
A "start low, go slow" approach is recommended for bisoprolol titration, with strong evidence, particularly in heart failure patients, according to the American College of Cardiology/American Heart Association guidelines 3

The target dose for bisoprolol is 10 mg once daily or maximum tolerated dose, with dose increments doubling at each titration step, as recommended by the European guidelines 1, 3
The recommended titration schedule is: 1.25 mg once daily → 2.5 mg once daily → 3.75 mg once daily → 5 mg once daily → 7.5 mg once daily → 10 mg once daily, with dose doubling every 1-2 weeks if the preceding dose was well tolerated 4
At each titration step, assess heart rate, blood pressure, signs of worsening heart failure or fluid retention, and symptoms of hypotension, according to the American College of Cardiology 2, 3

For perioperative use, titration should begin at least 7 days before surgery, and more cautious titration may be needed in patients with heart failure, bradycardia, or low blood pressure, as noted by the European Society of Cardiology and the American College of Cardiology 1, 2, 4
A different titration approach may be used for perioperative use, starting with 2.5 mg daily if resting heart rate >50 bpm, and titrating in increments of 1.25 or 2.5 mg daily, with a target heart rate of 60-70 bpm 2
Never initiate high-dose beta-blocker therapy the night before or morning of surgery, and avoid stopping bisoprolol abruptly, as this may precipitate rebound hypertension or worsening angina 5, 2
Consider specialist referral for severe heart failure (NYHA Class III/IV), unknown etiology, relative contraindications (bradycardia, low blood pressure), intolerance to low doses, or previous discontinuation due to symptoms 3
During each titration visit, assess for signs of worsening heart failure, fluid retention, hypotension (especially symptomatic), and bradycardia (do not increase dose if pulse <50 bpm), and consider reintroduction and uptitration when the patient becomes stable after any temporary dose reduction 3