Risk factors of incomplete thrombosis in the false lumen after endovascular treatment of extensive acute type B aortic dissection.

Objective: This study evaluated the risk factors of incomplete thrombosis in the false lumen after thoracic endovascular aortic repair (TEVAR) in patients with extensive acute type B aortic dissection.

Methods: This was a retrospective study at Zhongda Hospital and Henan Provincial People's Hospital, China. Between January 2005 and May 2008, patients with acute type B dissection who underwent TEVAR at two centers were reviewed and 124 who met the following criteria were included in this study: (1) dissection involving the aorta below the level of the celiac artery, (2) completely patent false lumen at the time of intervention, and (3) complete initial diagnostic computed tomography (CT) scans and all follow-up CT scans available.

[Study on the relationship between childhood non-intentional injury and socio-economic status in Jiangxi province].

Objective: To understand the relationship between childhood non-intentional injury and socio-economic status (SES) in Jiangxi province.

Methods: Nearly 100 000 households were selected by PPS sampling method, in Jiangxi province. All children aged 0 - 17 years in selected households were surveyed using an 'injury questionnaire'.

[Study on traffic induced injuries in children aged 0-17 years in Jiangxi province].

Objective: To explore the morbidity, mortality, and disease burden of traffic injury in children aged 0-17 years so as to develop a related strategy on prevention.

Methods: 100,000 households were selected by PPS sampling method in Jiangxi province. All children aged 0-17 years in selected households were interviewed by trained interviewers using a standardized 'traffic injury questionnaire'.

[A questionnaire investigation on the way of delivery and its related factors in 415 women at child bearing age in one hospital].

Objective: To understand the changing trend on the way of delivery since 1970s and its related factors that influencing the attitude of choice on Cesarean section (C-section) in women at child-bearing age.

Methods: A face-to-face interview was conducted anonymously in pregnant and lying-in women visited at the out-patient department of Gynecology and Obstetrics, Tiantan Hospital of Beijing. Totally, 415 women at child-bearing age, with a history of previous birth were interviewed on date, place and way of delivery of last birth, as well as on information that could have had impact on the choice of C-section.