Therapy

Insert a stent in new ^a and chronic occlusions ^a  

Why?

• Stent insertion reduces restenosis ^a and recurrent ischaemia, ^a but increases the risk of bleeding or vascular complications. ^a
• Patients spend on average 5 days longer in hospital. ^a
• Fewer patients require repeat angiography. ^a

Stent insertion reduces restenosis, recurrent ischaemia , but increases the risk of complications

Patient	Treatment	Comparison	Outcome	CER	RRR (95% CI)	NNT (95% CI)
stable angina and a single new lesion a	stent insertion	no stent	repeat angiography at 12 months	21%	51% (25% to 69%)	9 (6 to 23)
stable angina and new proximal left artery descending coronary artery lesion a	stent insertion	no stent	restenosis at 12 months	40%	54% (15% to 75%)	5 (3 to 17)
			death, MI or recurrence of angina at 12 months	30%	56% (6% to 79%)	6 (3 to 45)
angina with chronic coronary artery occlusion	stent insertion	no stent	restenosis at 9 months	69%	53% (29% to 69%)	3 (2 to 5)
			recurrent ischaemia at 9 months	46%	69% (38% to 85%)	3 (2 to 6)
angina with chronic coronary artery occlusion a	stent insertion	no stent	bleeding and vascular complications at 9 months	0.0%	-%	-14 (-250 to -7)