Objective To investigate the effects of different puncture levels on bone cement distribution and effectiveness in bilateral percutaneous vertebroplasty for osteoporotic thoracolumbar compression fractures. Methods A clinical data of 274 patients with osteoporotic thoracolumbar compression fractures who met the selection criteria between December 2017 and December 2020 was retrospectively analyzed. All patients underwent bilateral percutaneous vertebroplasty. During operation, the final position of the puncture needle tip reached was observed by C-arm X-ray machine. And 118 cases of bilateral puncture needle tips were at the same level (group A); 156 cases of bilateral puncture needle tips were at different levels (group B), of which 87 cases were at the upper 1/3 layer and the lower 1/3 layer respectively (group B1), and 69 cases were at the adjacent levels (group B2). There was no significant difference in gender, age, fracture segment, degree of osteoporosis, disease duration, and preoperative visual analogue scale (VAS) score, and Oswestry disability index (ODI) between groups A and B and among groups A, B1, and B2 (P>0.05). The operation time, bone cement injection volume, postoperative VAS score, ODI, and bone cement distribution were compared among the groups. Results All operations were successfully completed without pulmonary embolism, needle tract infection, or nerve compression caused by bone cement leakage. There was no significant difference in operation time and bone cement injection volume between groups A and B or among groups A, B1, and B2 (P>0.05). All patients were followed up 3-32 months, with an average of 7.8 months. There was no significant difference in follow-up time between groups A and B and among groups A, B1, and B2 (P>0.05). At 3 days after operation and last follow-up, VAS score and ODI were significantly lower in group B than in group A (P<0.05), in groups B1 and B2 than in group A (P<0.05), and in group B1 than in group B2 (P<0.05). Imaging review showed that the distribution of bone cement in the coronal midline of injured vertebrae was significantly better in group B than in group A (P<0.05), in groups B1 and B2 than in group A (P<0.05), and in group B1 than in group B2 (P<0.05). In group A, 7 cases had postoperative vertebral collapse and 8 cases had other vertebral fractures. In group B, only 1 case had postoperative vertebral collapse during follow-up. ConclusionBilateral percutaneous vertebroplasty in the treatment of osteoporotic thoracolumbar compression fractures can obtain good bone cement distribution and effectiveness when the puncture needle tips locate at different levels during operation. When the puncture needle tips locate at the upper 1/3 layer and the lower 1/3 layer of the vertebral body, respectively, the puncture sites are closer to the upper and lower endplates, and the injected bone cement is easier to connect with the upper and lower endplates.
ObjectiveTo investigate the effect of optimized arterial perfusion strategy on total arch replacement for acute type A aortic dissection (AAAD) with malperfusion syndrome (MPS).MethodsFrom 2017 to 2019, 51 patients with AAAD and MPS who had received total arch replacement with optimized arterial perfusion strategy in our hospital were included in the optimized perfusion group, including 40 males and 11 females, with an average age of 47.43±13.39 years. A total of 40 patients with AAAD and MPS who had been treated with traditional Sun's surgery were taken as the traditional control group, including 31 males and 9 females, with an average age of 50.66±12.05 years. The perioperative clinical data of the two groups were compared.ResultsThe preoperative baseline data of the two groups were basically consistent (P>0.05). The comparison of operative data between the optimized perfusion group and the traditional control group showed that in the optimized perfusion group, the extracorporeal circulation time, aortic occlusion time, and circulation-out cerebral perfusion time were significantly less than those in the traditional control group (223.64±65.13 min vs. 266.77±87.04 min, 114.48±27.28 min vs. 138.20±39.89 min, 8.28±3.81 min vs. 50.53±23.60 min, all P≤0.05). The lowest intraoperative nasopharyngeal temperature in the optimized perfusion group was significantly higher than that in the traditional control group (27.10±1.18℃ vs. 23.6±3.30℃, P=0.000). Postoperative wakefulness time of the optimized perfusion group was earlier than that of the traditional control group (4.50±1.35 h vs. 5.27±1.15 h, P=0.019). The volume of blood transfusions in the optimized perfusion group was significantly less than that in the traditional control group (13.25±9.06 U vs. 16.95±7.53 U, P=0.046). There was no significant difference in ICU time and invasive ventilation time between the two groups (P>0.05). Postoperative complications of the two groups showed that the incidence of postoperative continuous renal replacement therapy in the optimized perfusion group was significantly lower than that in the traditional control group, with a statistically significant difference (21.6% vs. 42.5% P=0.003). The incidence of postoperative delirium, coma, low cardiac row syndrome and limb ischemia in the optimized perfusion group was lower than that in the traditional control group, but the difference was not statistically significant (P>0.05). The incidence of postoperative hemiplegia, sepsis, and secondary thoracotomy in the optimized perfusion group was higher than that in the traditional control group, and the difference was not statistically significant (P>0.05). Postoperative mortality in the optimized perfusion group was significantly lower than that in the traditional control group (13.7% vs. 27.5%), but the difference was not statistically significant (P=0.102).ConclusionOptimized arterial perfusion strategy and its related comprehensive surgical technique reduce surgical trauma, shorten the operation time, reduce perioperative consumption of blood products. Postoperative wakefulness is rapid and the incidence of complications of nervous system, kidney and limb ischemia is low. Optimized arterial perfusion strategy is suitable for operation of AAAD with MPS by inhibiting the related potential death risk factors to reduce operation mortality.
Diagnosis of Parkinson’s disease (PD) based on speech data has been proved to be an effective way in recent years. However, current researches just care about the feature extraction and classifier design, and do not consider the instance selection. Former research by authors showed that the instance selection can lead to improvement on classification accuracy. However, no attention is paid on the relationship between speech sample and feature until now. Therefore, a new diagnosis algorithm of PD is proposed in this paper by simultaneously selecting speech sample and feature based on relevant feature weighting algorithm and multiple kernel method, so as to find their synergy effects, thereby improving classification accuracy. Experimental results showed that this proposed algorithm obtained apparent improvement on classification accuracy. It can obtain mean classification accuracy of 82.5%, which was 30.5% higher than the relevant algorithm. Besides, the proposed algorithm detected the synergy effects of speech sample and feature, which is valuable for speech marker extraction.
Objective To design the surgical strategy of percutaneous full-endoscopic bilateral decompression via unilateral posterior approach for bilateral lumbar spinal stenosis (LSS) and to evaluate the effectiveness. Methods The percutaneous full-endoscopic bilateral decompression via unilateral posterior approach for bilateral LSS was designed according to the pathological features of LSS. The technique was used to treat 42 patients with LSS between January 2016 and January 2018. There were 18 males and 24 females with an average age of 61.7 years (range, 46-81 years). The duration of symptoms was 1-20 years, with an average of 9.7 years. The surgical segment at L4, 5 were 27 cases, at L5, S1 were 15 cases. The operation time and perioperative complications were recorded. Lumbar X-ray, CT, and MRI examinations were performed at 1 week, 3 months, and 1 year after operation. Visual analogue scale (VAS) score was used to evaluate the low back pain and leg pain, Oswestry disability index (ODI) was used to evaluate the lumbar function, and single continuous walking distance (SCWD) was used to evaluate lower extremity nerve function. The clinical efficacy was evaluated by MacNab criteria at 1 year after operation. Results All patients underwent surgery successfully. The operation time was 68-141 minutes with an average of 98.2 minutes. All 42 patients were followed up 12-24 months with an average of 18.8 months. There were 2 cases of dural tears during operation, and 1 case of transient dysfunction of the lower limbs of the decompression channel after operation. All of them were cured after corresponding treatment. No serious complications such as death, major bleeding, or irreversible nerve injury occurred during follow-up. No segmental instability was found according to postoperative lumbar hyperextension and flexion X-ray films, and postoperative CT and MRI imaging showed that the stenotic lumbar spinal canal was significantly enlarged, and the compression of the nerve root was sufficient. The VAS score of low back pain and leg pain, ODI score, and SCWD at each time point after operation were significantly improved when compared with those before operation (P<0.05); the indexes were significantly improved over time after operation, and the differences were significantly (P<0.05). The clinical efficacy was evaluated by MacNab standard at 1 year after operation, and the results were excellent in 18 cases, good in 20 cases, fair in 3 cases, and poor in 1 case. The excellent and good rate was 90.5%. Conclusion The percutaneous full-endoscopic bilateral decompression via unilateral posterior approach for LSS is a safe and effective procedure. A well-designed surgical strategy and mastery of its technical points are important guarantees for successful operation and satisfactory results.
ObjectiveTo explore the clinical efficacy of single-branch intraoperative stent combined with modified bilateral cerebral perfusion in type A aortic dissection. MethodsA retrospective analysis was conducted on the clinical data of patients who underwent surgery for type A aortic dissection at the First Affiliated Hospital of Anhui Medical University from January 2021 to May 2024. Patients were divided into the experimental group (single branch stent combined with modified bilateral cerebral perfusion) and the control group (traditional surgical method, straight stent+unilateral cerebral perfusion) according to the surgical method. Propensity score matching analysis was used to match the two groups of patients with a ratio of 1:1, and the perioperative data and clinical efficacy after matching were compared. ResultsA total of 14 patients were included in the experimental group, including 13 males and 1 female, with an average age of (47.4±16.1) years. There were 56 patients in the control group, including 38 males and 18 females, with an average age of (52.1±11.7) years. After propensity score matching, 14 patients were included in each group. Compared with the control group, the ventilator support time [(27.4±24.3) h vs. (93.4±88.0) h, P=0.018], length of stay in the intensive care unit [(2.8±1.8) d vs. (8.7±6.5) d, P=0.009], and postoperative awakening time [(5.4±2.2) h vs. (8.8±4.8) h, P=0.047] in the experimental group were shorter than those in the control group, with statistically significant differences. ConclusionSingle-branch intraoperative stent combined with modified bilateral cerebral perfusion can effectively shorten ventilator support time, length of stay in the intensive care unit, and postoperative awakening time, and is safe and effective for the treatment of type A aortic dissection, which is worth further promotion.
Objective To explore the clinicopathological features of bilateral primary breast cancer (BPBC) at different ages. Methods Clinical data of 105 BPBC patients admitted to the Department of Breast Surgery in The First Affiliated Hospital of Zhengzhou University from January 2017 to January 2020 were collected and divided into young group (≤40 years old) and middle-old group (>40 years old) according to age. The characteristics and differences of bilateral tumor lesions in pathological type, molecular type, tumor diameter, histological grade, clinical stage, lymph node metastasis, recurrence or distant metastasis, immunohistochemical indexes expression characteristics, consistency and difference, and overall prognosis between the two groups were retrospectively analyzed. Results There were statistically significant differences between the two groups in the size of the first primary cancer, lymph node metastasis, the high expression rate of Ki-67 in the second primary cancer, clinical stage of double primary cancer and recurrence or distant metastasis (P<0.05). In the young group, the proportion of the first primary cancer with T3–T4 stage was higher, the incidence of lymph node metastasis was higher, the proportion of high expression of Ki-67 in the second primary cancer was higher, and the proportion of patients with double primary cancer at first diagnosed as stage Ⅳ were higher than those in the middle-old group, and were prone to recurrence or distant metastasis. The expression of immunohistochemical indexes in bilateral cancer foci was consistent between the two groups (P<0.05). The expression consistency of ER and Ki-67 in the young group was better, and the expression consistency of PR and HER-2 in the middle-old group was better. The histological grade of the first primary cancer, TNM stage of bilateral primary cancer and recurrence or metastasis were independent factors affecting the prognosis of patients (P<0.05). Conclusions The BPBC patients of different ages have different clinicopathological features, and the expression of immunohistochemical indexes in bilateral cancer foci is consistent. Tumor histological grade of the first primary cancer may affect the prognosis of patients with BPBC, and the prognosis of patients with early bilateral TNM stage is better.
ObjectiveTo explore the ultrasonographic and pathological manifestations of primary bilateral breast cancer (PBBC). MethodsThe ultrasonographic and clinical manifestations of 24 patients with PBBC confirmed by surgical pathology and clinical examination between January 2001 and April 2009 were studied retrospectively. The study contained 9 bilateral synchronous breast cancer patients aged from 41 to 60 years old, averaging 47.3 years, and 15 bilateral asynchronous breast cancer patients. For patients with bilateral asynchronous breast cancer, the age on the first lesion diagnosis was between 33 to 61 years with an average of 43.2; the age on the second lesion diagnosis was from 38 to 69 years old averaging 49.1; and the interval time between the first and second lesion diagnosis was from 3 to 8 years, averaging 5.9 years. ResultsThe site of PBBC was more located in upper outer quadrant. Most lesions had obscure boundary, irregular shape, and heterogeneous internal echo in ultrasonographic manifestation. The vertical and horizontal diameter ratio > 1, acoustic shadowing, and microcalcification occurred in some of the lesions. The bloodstream of the lesions were mainly Adler gradeⅡorⅢ. ConclusionsMost PBBC has typical ultrasonographic manifestations. The follow-up of PBBC patients should be based on imaging such as ultrasonography. The biopsy guided by ultrasonography can elevate the detection rate of PBBC.
ObjectiveTo introduce the method and preliminary experience of robot-assisted bilateral internal mammary arteries (BIMA) harvesting for off-pump coronary artery bypass grafting (OPCAB) with 5 grafts via left anterolateral minithoracotomy.MethodsBIMA were harvested using the da Vinci robotic surgical system, and the right internal mammary artery (RIMA) was pulled out of the thoracic cavity through right second intercostal space. Intercepting the distal part of the RIMA for the BIMA composite Lima-Rima Y graft and anastomosing the great saphenous vein with remaining RIMA end to end. The Y graft anastomosed with left anterior descending (LAD) branch and diagonal branches (DIAG), artery-vein graft sequentially anastomosed with blunt round branch, left ventricular posterior branch and posterior descending branch.ResultsThe operation succeeded without hemodynamic instability and intra aortic balloon pump (IABP) implantation or cardiopulmonary bypass. The blood flow of Y graft was 24 mL/min, and the blood flow of artery-vein graft was 30 mL/min. Ventilator assistance time was 35 hours, ICU staying time was 62 hours, and postoperative myocardial enzymes increased temporarily. Postoperative coronary CTA showed that all the grafts were patency, and cardiac ultrasound indicated that the heart function was normal. The patient cured and discharged from hospital 7 days after operation.ConclusionRobot-assisted bilateral internal mammary artery harvesting for OPCAB with 5 grafts via left anterolateral minithoracotomy is feasible, which can achieve complete revascularization.
ObjectiveTo evaluate short-term clinical outcomes of skeletonized bilateral internal mammary artery (sBIMA) in coronary artery bypass grafting (CABG).MethodsThe clinical data of 62 patients (54 males and 8 females with an average age of 56.8±6.0 years) undergoing isolated CABG using sBIMA in our hospital from October 2016 to May 2017 were retrospectively analyzed. The coronary graft flow, perioperative clinical outcomes and CT results were reviewed.ResultsAll the operations were carried out under extracorporeal circulation. Anastomosis of 124 internal mammary arteries was performed and 116 great saphenous veins were used simultaneously with an average anastomosis site of 4.5±0.8 for each patient. The cardiopulmonary bypass time was 116.4±22.9 min, aortic clamping time was 83.0±18.3 min, mechanical ventilation time was 20.8±21.3 h and ICU stay was 2.7±1.7 d. The graft flow of left internal mammary artery (LIMA), right internal mammary artery (RIMA) and great saphenous vein were 28.8±12.4 mL/min, 32.8±13.8 mL/min and 41.5±21.5 mL/min, respectively. There was no significant difference in the graft flow between LIMA and RIMA (P=0.112). There was no perioperative mortality, myocardial infarction or cerebrovascular accident. Only one male patient suffered sternal complication and poor wound healing and then received debridement as well as suturing. Coronary CT angiography showed that distal anastomosis of 7 vein grafts and 5 artery grafts was demonstrated shallow and 1 vein graft was undemonstrated, suggesting occlusion.ConclusionCABG with sBIMA is a safe and reliable technique with excellent early results.
ObjectiveTo explore the safety and feasibility of the application of video-assisted thoracic surgery (VATS) anatomic segmentectomy in single-stage bilateral thoracic surgery for the treatment of bilateral localized bronchiectasis.MethodsFrom June 2014 to June 2018, 19 patients with bilateral localized bronchiectasis underwent single-stage bilateral thoracic surgery with VATS anatomic segmentectomy, including 11 males and 8 females aged 38.0±12.5 years. The clinical efficacy of the surgery was evaluated.ResultsAll surgeries were successfully completed, of which 17 were bilateral VATS, 2 were unilateral VATS with the other lateral converted to thoracotomy. The average number of bilateral resected segments was 4-8 (5.9±1.2). Mean operation time was 330.0±40.0 min and mean blood loss was 150.0±60.0 mL. Mean ventilator-assisted breathing time was 6.0±1.8 h, mean duration of chest-tube placement was 4.0±1.0 d and mean hospital stay time was 14.0±1.5 d. Three patients suffered pulmonary infection and 1 patient received tracheotomy. No perioperative death occurred. Arterial oxygen pressures on postoperative day (POD) 1 (F=340.18, P<0.05) and POD 3 (F=131.26, P<0.05) were significantly lower than that before operation, arterial carbon dioxide pressures on POD 1 (F=46.62, P<0.05) and POD 3 (F=48.21, P<0.05) were significantly higher than that before operation, and pulse oximeter saturation on POD 1 was significantly lower than that before operation (F=210.82, P<0.05). The patients were followed up for one to five years without recurrence.ConclusionApplication of VATS anatomic segmentectomy in single-stage bilateral thoracic surgery for the treatment of bilateral localized bronchiectasis is safe and feasible with strictly selected patients. Postoperative airway management is very important. The surgery is worthy of wide clinical practice.