AIP and acute coronary syndrome: In patients with acute coronary syndrome (ACS) undergoing percutaneous coronary intervention (PCI), higher AIP levels significantly increased the risk of in-stent restenosis [48] (OR: 5.23, 95% CI 4.36–6.26, P < 0.00001) and stent-thrombosis [49] (OR: 4.47, 95% CI 2.77–7.22, P < 0.00001).