Complex sentence: Some doctors prefer to work with totally anesthetized patients at this point, since the lack of pain being reported allows a leisurely examination; whereas a doctor with a twilight-sedated patient might hurry the inspection at this point, because of the groaning.
Split into simpler sentences: Some doctors prefer to work with totally anesthetized patients at this point, since the lack of pain being reported allows a leisurely examination. Whereas a doctor with a twilight sedated patient might hurry the inspection at this point, because of the groaning.