Case managers, as a type of advanced practice nurses, can not only fully meet patient needs and improve patient outcomes, but also innovate nurses′ workplaces and provide nurses with new directions for career development. This article provides an overview of the origin and development of case managers at home and abroad, their practice models, role responsibilities, current training status, current certification status, and current application status, and puts forward suggestions such as the development of practice standards for case managers, and the establishment of a standardized training system and certification body, with a view to providing references for the development of case managers in China.

Case managers, as a type of advanced practice nurses, can not only fully meet patient needs and improve patient outcomes, but also innovate nurses′ workplaces and provide nurses with new directions for career development. This article provides an overview of the origin and development of case managers at home and abroad, their practice models, role responsibilities, current training status, current certification status, and current application status, and puts forward suggestions such as the development of practice standards for case managers, and the establishment of a standardized training system and certification body, with a view to providing references for the development of case managers in China.

Objective To evaluate the efficiency and safety of ultrasonic debridement therapy (UDT) and intelligence negative-pressure wound therapy(INPWT) for diabetic foot ulcers with Wagner 2-3degree.Methods Eighty patients with diabetic foot ulcers with Wagner 2-3 degree were divided into two groups according to the treatment method.The UDT and INPWT group (INPWT group) had 53 cases.Routine treatment group(routine group) had 27 cases.Both groups were given blood sugar and blood pressure control,anticoagulation,anti-infection and supportive treatment.The efficiency and complications were compared between two groups.Results In INPWT group,29 cases were healed,14 cases showed obvious effectiveness,7 cases were effective and 3 cases were inefficacy.The total effective rate was 94.34％(50/53).For routine group,they were 7,8,6,6 cases and 77.78％(21/27) respectively.The total effective rate between two groups had significant difference (P ＜0.05).Pain was found in 9 cases and hemoglobin decreased in 1 case in INPWT group.Conclusion INPWT after UDT for diabetic foot ulcers with Wagner 2-3 degree shows a good efficiency and safety.