ABSTRACT
Objective To evaluate the early and mid-term clinical efficacy and safety of endovascular re-pair for Stanford B aortic dissection. Methods Fifty-seven patients with Stanford B aortic dissection from July 2012 to July 2016 were selected.Based on the preoperative CTA image data,the appropriate stent grafts were cho-sen,and then endovascular graft exclusion was performed under the DSA perspective. The complications and mor-tality 3,6,12 and 24 months after the operation were observed,and the clinical features,curative effect and follow-up results were analyzed.Results The success rate of operation reached 100% and the average length of hospital-ization was 11 d.There were 1 case of postoperative 3 d leakage,1 postoperative 7 d death and 1 of recurrent dis-section 13 months later.Postoperative follow-up of 3 to 24 months showed that there were no postoperative paraple-gia,no dislocated and regressive stents and no occurrence of transposition and breakage of stent. Conclusions Covered stent in the treatment of Stanford B aortic dissection has the advantages of less trauma,safety,rapid recov-ery,simple operation,high success rate,less complications,definite curative effect in early-and middle-term and low fatality rate.
ABSTRACT
<p><b>OBJECTIVE</b>To evaluate the completeness of the death registration system, so as to understand the death patterns in Xuanwei.</p><p><b>METHODS</b>The investigation on under-reported deaths was conducted in 30 villages selected with a multi-stage random sampling strategy. Participants were asked about changes of their family members (family members born or dead) during past 3 years with door to door visit. Then, death cases obtained in our investigation were matched with those from routine death registration system and under-reported rate of deaths during 2011-2013 was calculated employing capture-recapture method.</p><p><b>RESULTS</b>Total under-reported rate of deaths was 31.88%. For people aged between 0-14, 15-39, 40-69 and 60 above, under-reported rates of death were 33.35%, 34.93%, 29.10%, and 32.88%, respectively. And they were 31.72% and 32.02% for males and females, respectively. There was no significant difference shown in under-reported rates among deaths in different age groups (χ² = 7.24, P = 0.065) and genders (χ² = 0.06, P = 0.803). The under-reported rates in high-mortality, medium-mortality and low-mortality regions were 17.48%, 38.01%, and 36.22%, respectively with a significant difference (χ² = 213.25, P < 0.001). Death in local regions with mortality rate higher than 600.00/10(5), between 400.00/10⁵ and 600.00/10⁵ and lower than 400.00/10⁵ were adjusted with under-reported rates in three regions above respectively. The total adjusted morality rate in Xuanwei during 2011-2013 was 776.47/10⁵. For males and females, they were 918.73/10⁵ and 617.46/10⁵, respectively.</p><p><b>CONCLUSION</b>Overall under-reported rate of death was high in death registration system in Xuanwei. It was necessary to adjust mortality data reported with under-reported rate of death to estimate death patterns in this area.</p>