What is a typical heart rate goal when using esmolol for dissection management?

• A. 90-110 bpm
• B. 100-120 bpm
• C. 70-90 bpm
• D. 60-70 bpm

Answer: (D)

In managing aortic dissection, the goal is to reduce the force driving blood through the aorta, which comes from both blood pressure and the heart’s rate. Lowering the heart rate with esmolol decreases dP/dt (the rate of rise in pressure with each heartbeat) and the shear stress on the aortic wall. Esmolol is ideal here because it acts quickly and wears off quickly, so you can titrate to a precise target without long-lasting effects if you overshoot. A heart rate around 60-70 beats per minute hits the balance: it lowers stress on the aorta while preserving enough cardiac output when BP is also being controlled. Higher targets like 90-110 or 100-120 would leave more wall stress, increasing risk, while aiming for much lower rates could compromise perfusion. That's why the typical goal is 60-70 bpm.