ABSTRACT
Objective To explore the optimal treatment options of Stanford type B aortic dissection. Methods A to?tal of 51 patients with Stanford type B aortic dissection who visited the General Hospital of Tianjin Medical University from May 2008 to March 2013 were analyzed retrospectively. Survival and recovery of patients were evaluated by follow ups. Pa?tients were divided to TEVAR group(40 cases)and conservative group(11 cases)according to the treatment they recieved. Results Operations were successful in all 40 patients. There were two cases of perioperative death(5%). And none of pa?tients died in TEVAR group during follow-up. One case among 11 patients who received conservative treatment dead in hos?pital(9.1%)while other 7 cases died during follow-up(63.6%). Kaplan-Meier survival curve showed that two-year survival rate of TEVAR group was significantly higher than that of conservative group. In TEVAR group, the maximum diameter of the aorta presented a decreasing trend and thrombosis was seen in artificial lumen with time going after operation. Conclu?sion For patients with Stanford type B aortic dissection, TEVAR presented a high success rate and promoted remodeling of the aortic genuine and aritificial lumen. What’s more, it can significantly improve patient’s survival rate and recovery in short or mid-term period compared with effect of traditional conservative treatment.
ABSTRACT
BACKGROUND:Health has been paid more and more attention in modern society, the health of those special groups, such as the elderly and the disabled, should also be brought to the forefront. As fitness equipment is more and more popular in contemporary, our focus should be transferred to the use of fitness equipment for these special groups. OBJECTIVE:To put forward the design strategy of fitness equipment control interface, for the special groups to use common fitness equipment comfortably and conveniently. METHODS:Based on the research of existing fitness equipment control interface, according to the usage habits and cognitive awareness of special groups on control interface, a new design strategy has been put forward using the general design method and ergonomics. RESULTS AND CONCLUSION:Based on the existing 45 kinds of exercise bikes, 84 kinds of running machines and 129 kinds of treadmil fitness equipments, we found that these equipments are designed for common users in the aspects of design and production process and control interface. Universal design is a design concept beyond the lack of capacity to meet the different needs of different populations, and designed products can reduce or even eliminate the difference in the ability of special populations and the general population in use. The new strategy makes design of fitness equipment control interface generalized and good man-machine interactive, which can meet the demand of the special groups and help them do fitness exercise to improve their health and body function.