https://www.selleckchem.com/products/olprinone.html The prevalence of antibiotic resistance is a growing worldwide problem in the control of pathogens, particularly negative bacteria that are resistant to antibiotics, Pseudomonas aeruginosa (PA) is one of these bacteria. The development of new effective antibiotics is time-consuming and costly, and the new antibiotics may become resistant again. Therefore, non-antibiotic clinical treatment for antibiotic-resistant PA infection is necessary and needs to be strengthened. The antibiotic resistance (AR) mechanism of PA is complex. Biofilm formation is one of the reasons why its resistance is difficult to overcome. The formation of biofilms is mainly regulated by quorum sensing (QS). QS is a mechanism by which PA increases its virulence by producing small diffusible molecules, which regulates a series of genes associated with virulence and nutrient acquisition. QS inhibitors are potions that obstruct QS systems in bacteria and destruction of virulence. This review summarizes AR mechanism of PA, Basic knowledge of QS of PA and some non-antibiotic methods for inhibiting PA, including QS inhibitors, which have potential and far-reaching significance for antibiotic-resistant PA's clinical treatment. The review helps to provide new ideas and new schemes for clinical anti-PA infection research and treatment, and has positive significance for delaying the occurrence of bacterial drug resistance and antibiotic use management. To analyze the application effect of bisoprolol combined with sacubitril valsartan sodium tablets in the cardiac rehabilitation of patients with acute myocardial infarction combined with left heart failure after percutaneous coronary intervention (PCI). Patients were divided into a control group (bisoprolol), with 39 cases, and a combination group (bisoprolol combined with sacubitril valsartan sodium tablets), with 42 cases, according to their different medications after surgery. The 6-min walking test dist