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@#Objective To investigate the feasibility and effectiveness of using ultrasound to evaluate the internal mammary artery (IMA) and explore the related factors affecting the quality of IMA. Methods From July 2020 to January 2021, for patients who underwent coronary artery bypass grafting at the Department of Cardiovascular Surgery, Fuwai Hospital, ultrasound was applied to measure bilateral IMA at the parasternal second intercostal space. There were 62 males and 18 females with an average age of 59.9±8.3 years. The clinical data of the patients were recorded and analyzed. Results A total of 160 IMA were measured. The IMA was detected in 99.4% (159/160), and the one that was not measured was proved to be occluded by enhanced CT. A total of 157 (98.1%) IMA intima were smooth, 2 (1.3%) were found to have uneven intimal thickening and less smooth, and only 1 (0.6%) was occluded. The intravascular diameter, peak systolic flow rate, peak diastolic flow rate, and blood flow rate of the left second intercostal IMA were 1.9±0.3 mm, 66.8±17.7 cm/s, 6.4 (0.0, 9.7) cm/s, 19.7±9.4 mL/min; and those of the right one were 2.1±0.3 mm, 69.7±18.5 cm/s, 6.0 (0.0, 9.2) cm/s and 22.8±11.5 mL/min, respectively. IMA vessel diameter and blood flow were greater on the right than those on the left side in the same individual (P<0.01). In univariate analysis, sex and body surface area were the factors that influenced the size of the IMA vessel among different individuals, and by linear regression analysis, the size of the IMA vessel was only related to body surface area among different individuals. On univariate analysis, diabetes mellitus was the only factor affecting IMA blood flow, with a mean reduction in blood flow of 18.4% (left) and 21.7% (right) in the diabetic group (P<0.05). Conclusion Preoperative evaluation of the IMA using ultrasound over the parasternal second intercostal space is easy, noninvasive, and has a high success rate. The internal diameter of the IMA is positively correlated with body surface area, and blood flow is significantly reduced in patients with diabetes.
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Objective The aim of this study is to evaluate clinical outcomes of patients with acute type A intranural hematoma of the aorta(IMH) received surgical treatment.Methods We analyzed 40 consecutive patients with acute type A aortic IMH in Fuwai hospital.The patients are from 2012.1.1 to 2015.12.31.The average age of patients is(56 ± 11) years.Clinical outcomes and morphological evolution by CT were analyzed for 2 years.Results Most of the patients were treated medically during their initial hospitalization.There were 2 patients died in in-hospital and no 2-year mortality.16 patients (40％) were received acute surgery,24 patients(60％)were received normal surgery.Conclusion Surgical treatment would be a favorable treatment option in type A acute IMH.
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Objective To investigate the experience of laparoscopic complete mesocolic excision ( CME) for colon cancer. Methods There were102 patients,of which 68 cases with colon cancer were performed laparoscopic CME,34 cases were treated by traditional surgery. The 2 groups were reviewed retrospectively. Results As compared with the traditional group,the operation time,time of first flatus,hospital stay in the CME group increased. The postoperative suction drainage was decreased in CME group. The CME group had less blood loss and more mean lymph nodes clearance than the traditional group. The complication incidences had no significant differences between 2 groups. Conclusion Laparoscopic CME for colon cancer,with the advantages of less tumor spreading and more thoroughly lymph node dissection,is worthy of clinical application.
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<p><b>OBJECTIVE</b>To assess the feature of pulmonary blood flow distribution after total cavopulmonary connection (TCPC) of different types, and to provide the selection of the best type.</p><p><b>METHODS</b>Thirty-two consecutive survival patients after TCPC underwent radionuclide lung perfusion imaging. According to the radionuclide counts in the left and right lungs, analyses of the distribution of blood flow from superior venous cava (SVC) and inferior venous cava (IVC) and the whole pulmonary blood flow in both lungs were made. All patients were divided into 4 groups by the the anastomosis between IVC and pulmonary artery.</p><p><b>RESULTS</b>Group I: The flow ratio of the IVC to left lung was greater than that to the right lung, P < or = 0.01; the flow ratio of the SVC to right lung was greater than that to the left lung, P < or = 0.01; and the whole pulmonary blood flow went dominantly to the left lung, P < or = 0.05, which is not in line with physiological distribution. Group II: the flows from the SVC and IVC were mixed in the middle of the junction and ran evenly into the right and left lungs, the whole pulmonay blood flow went to both lungs, P > or = 0.05. Group III: the flow ratio of the SVC to both lungs were the same, P > or = 0.05, and major part from IVC went to the right lung, P < or = 0.01; the pulmonary blood flow go dominantly to the right lung, P < or = 0.05, which is in accord with physiological distribution. Group IV: the flows from the right SVC went to right lung by 100%, P < or = 0.01, and that from the left SVC went to left lung by 100% too, P < or = 0.01; the flows from IVC went dominantly to the left lung, with little part to the right lung, P < or = 0.05.</p><p><b>CONCLUSIONS</b>Different types of TCPC can result in different pulmonary blood distributions. The best flow distribution between the left and right lungs can be obtained by an offset of the IVC anastomosis toward the RPA with widening anastomosis for the patients without persist left superior venous cava (PLSVC).</p>