Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Wertheim cung cấp cho các bạn kiến thức về ngành y đề tài: A statistical model that predicts the length from the left subclavian artery to the celiac axis; towards accurate intra aortic balloon sizing. | Parissis et al. Journal of Cardiothoracic Surgery 2011 6 95 http content 6 1 95 JCTS JOURNAL OF CARDIOTHORACIC SURGERY RESEARCH ARTICLE Open Access A statistical model that predicts the length from the left subclavian artery to the celiac axis towards accurate intra aortic balloon sizing Haralabos Parissis1 Alan Soo1 Michalis Leotsinidis2 and Dimitrios Dougenis3 Abstract Background Ideally the length of the Intraaortic balloon membrane cm should match to the distance from the left subclavian artery LSA to the celiac axis CA LSA - CA . By being able to estimate this distance better guidance regarding IABP sizing could be recommended. Methods Internal aortic lengths and demographic values were collected from a series of 40 cadavers during autopsy. External somatometric measurements were also obtained. There were 23 males and 17 females. The mean age was years weight kg and the height 166 cm. Results Multiple regression analysis revealed the following predictor variables R2 for estimating the length from LSA to CA height standardized coefficient SRC p age SRC p sex SRC p and the distance from the jugular notch to trans-pyloric plane SRC p . Recommendations If LSA-CA cm use 34 cc IABP if LSA-CA cm use 50 cc IABP. However if LSA-CA cm use 40 cc but be aware that it could be aortic length-balloon membrane length mismatching. Conclusions Routinely IABP size selection is being dictated by the patient s height. Inevitably this leads to pitfalls. We reported a mathematical model of accurate intraaortic balloon sizing which is easy to be applied and has a high predictive value. Introduction The selection of the intraaortic balloon pump IABP in adults has been mainly limited to the use of 40 cc and occasionally 34 cc balloon volume with a membrane length that varies among manufacturers from 22 to cm and an inflated diameter 15 - 18 mm
