I READ the April 16 report ("Surgeon cleared of misconduct charges") with sadness.

At least one person in the operating theatre should have known that the surgeon was administering undiluted cardioplegia, yet no one made an effort to stop it.

Such errors can be prevented.

It is important for all operating theatre nurses to learn from this unfortunate incident.

They must be the "eyes and ears" of surgeons, who are often too engrossed in performing their tasks, and raise the alarm when things are not right.

Surgeons must also have the humility to respond to the nurses' concerns.

Lee Soh Hong (Miss)