Objective To investigate the correlation between auditory steady-state response (ASSR)and behavioral audiometry threshold in deaf children.Methods A total of 63 cases (126 ears)of severely and profoundly hearing impaired children from 0.5 years to 6 years were divided to Group A of 0.5~1.0 years,Group B of 1.1~3.0 years and Group C of 3.1~6.0 years old.ASSR and behavioral hearing tests were conducted in the sound field. 0.5~1.0 years old children were tested with the behavior observation Audiometry (BOA),1~2 years old children with visual reinforcement audiometry (VRA),while those of 3 ~6 with play audiometry (PA).Results For the ASSR response thresholds and pure tone hearing thresholds at 0.5,1,2 and 4 kHz,the correlation coefficients were 0.75,0.76,0.76,and 0.83,respectively.There was a significant correlation (P <0.01 ).The hearing thresholds were generally lower than the ASSR response thresholds,and with increasing frequency,the gaps were narrowed between the two.For Group A at each frequency the response thresholds and behavioral audiometry correlations were lower than those of Group B and C with the lowest at 0.5 kHz.Conclusion For the children of 0.5~6 years, ASSR and behavioral audiometric thresholds have good correlations.ASSR can provide information about the behav-ior thresholds for young children and those high risk children and for fitting hearing aids.

Objective:To study the effect of early hyperbaric oxygen combined with rehabilitation training on neurological rehabilitation and prognosis of patients with hypertensive intracerebral hemorrhage after borehole drainage.Methods:Eighty-five patients with hypertensive intracerebral hemorrhage admitted to Zhejiang Xin'an International Hospital from January 2018 to March 2020 were enrolled, and all of them were treated with minimally invasive drilling and drainage and they were divided into two groups by the order of admission. The control group (41 cases) received rehabilitation training after 48 h of stable vital signs. The research group(44 cases) was treated on the base of the control group combined with early hyperbaric oxygen therapy. The levels of neuron-specific enolase (NSE), S100β and scores of National Institutes of Health Stroke Scale (NIHSS), Fugl-Meyer Assessment (FMA), Barthel index, cerebral blood flow, and Glasgow Outcome Scale (GOS) were observed in the two groups before and after treatment.Results:After treatment, the levels of NSE and S100β in the two groups were decreased and those in the research group were lower than those in the control group: (14.38 ± 1.47) μg/L vs. (18.04 ± 2.95) μg/L, (0.24 ± 0.03) μg/L vs. (0.32 ± 0.04) μg/L, the differences were statistically significant ( P<0.05). The scores of NIHSS in the two groups were decreased, while the scores of FMA and Barthel index were increased, while the scores of NIHSS in the research group was lower than that in the control group: (9.18 ± 1.02) scores vs. (11.85 ± 1.47) scores; the scores of FMA and Barthel index in the research group were higher than those in the control group: (68.38 ± 8.93) scores vs.(61.42 ± 8.01) scores, (63.25 ± 7.65) scores vs. (56.11 ± 6.04) scores, the differences were statistically significant ( P<0.05). The average cerebrovascular blood flow and flow rate of patients in both groups were higher than those before treatment, and the peripheral cerebrovascular resistance of patients in both groups was lower than that before treatment, while the average cerebrovascular blood flow and flow rate in the research group were higher than those in the control group: (17.85 ± 2.48) ml/s vs. (15.12 ± 2.01) ml/s, (20.61 ± 2.88) cm/s vs. (17.04 ± 2.47) cm/s; the peripheral cerebrovascular resistance in the research group were lower than that in the control group: (1 328.95 ± 114.29) kPa·s/m vs. (1 558.13 ± 157.21)kPa·s/m, the differences were statistically significant ( P<0.05). The good prognosis rate of research group was higher than that of control group: 84.09%(37/44) vs. 60.98%(25/41), the difference was statistically significant ( χ2 = 4.634, P<0.05). Conclusions:Early hyperbaric oxygen combined with rehabilitation training can promote the recovery of neurological function of patients with hypertensive intracerebral hemorrhage after borehole drainage, and can improve cerebral blood flow and prognosis.

In order to solve the time-consuming problem in volume CT image reconstruction field, we brought forward a fast reconstructive algorithm method to fit the clinic medicine. First, using the great parallel and Floating-Point power of graphic processing unit (GPU), we proposed a volume CT GPU- based reconstruction method. Second, in order to reduce the repetitive operation, we separated the geometry computation and pixel computation. As a result, the computation efficiency was further improved. At last, based on the background of medical engineering, the parallel of volume CT scan and reconstruction was implemented. The results demonstrated that the volume CT reconstruction time could reduce up to 70 times compared to the previous one in common PC by the fast reconstructive algorithm method.
Algorithms ; Computer Graphics ; Cone-Beam Computed Tomography ; instrumentation ; methods ; Humans ; Image Processing, Computer-Assisted ; methods ; Radiographic Image Enhancement ; methods ; Radiographic Image Interpretation, Computer-Assisted ; methods

Objective: To explore the effect of 3D-slicer assisted soft channel drainage on the surgical outcome and prognosis of patients with hypertensive cerebral hemorrhage (HICH). Methods: Seventy-six HICH patients treated in Zhejiang Xin'an International Hospital from January 2016 to December 2018 were randomly divided into the control group and the observation group, with 38 cases in each group. Both groups of patients underwent percutaneous cone cranial soft channel drainage.The control group patients used CT hematoma localization, and the observation group patients used 3D-slicer software hematoma localization. The perioperative related data, surgical results, complications and prognosis of patients in the two groups were observed and compared. Results: The operation time and hospitalization time of patients in observation group were (76.24 ± 11.24) min and (15.21 ± 4.01) d, significantly shorter than those in control group [(103.17 ± 17.43) min and (18.63 ± 4.75) d], and there were significant differences (P < 0.05). The blood loss during operation and hematoma residual amount 7 d after operation in observation group were (77.21 ± 11.35) ml and (4.24 ± 0.87) ml, significantly lower than those in control group [(115.35 ± 21.22) ml and (18.63 ± 4.75) ml], and there were significant differences (P < 0.05). The hematoma clearance of patients 1 d and 3 d after operation in observation group were (83.24 ± 11.21) ml and (92.24 ± 15.63) ml, significantly higher than those in control group [(69.67 ± 10.73) ml and (85.57 ± 13.11) ml], and there were significant differences (P < 0.05). The incidence rates of intracranial rebleeding, intracranial infection and pulmonary infection in observation group were significantly lower than those in control group [2.63%(1/38) vs. 21.05%(8/38), 0 vs. 15.79% (6/38), 2.63%(1/38) vs. 21.05%(8/38)](P < 0.05). After treatment for 3 months, the good prognosis rate in observation group was significantly higher than that in control group [86.84%(33/38) vs. 65.79% (25/38)] (P < 0.05). Conclusions 3D-slicer software based on percutaneous soft-channel puncture and drainage for HICH patients can achieve better surgical results, reduce the incidence of complications and improve the prognosis of patients.

Objective: To explore the effects of minimally invasive intracranial hematoma removal in the treatment of cerebral hemorrhage, and its influence on neurological functional recovery, serum levels of high-sensitivity C-reactive protein (hs-CRP), interleukin-6 (IL-6), interleukin-8(IL-8), tumor necrosis factor-alpha (TNF-α). Methods: From January 2016 to December 2017, 100 patients with cerebral hemorrhage admitted to Zhejiang Xin'an International Hospital were selected and randomly divided into two groups according to the digital table, with 50 cases in each group.The control group was given routine symptomatic treatment, the observation group received minimally invasive intracranial hematoma removal combined with conventional treatment.The curative effect, restoration of nerve function, the levels of hs-CRP, IL-6, IL-8 and TNF- were observed in the two groups. Results: After treatment, the blood loss and edema volume around the hematoma in the two groups were declined significantly (t=5.74, 9.32, 7.41, 9.32, all P<0.05), and the improvements of the observation group was better than those of the control group (t=8.29, 5.28, all P<0.05). The excellent and good rate of the observation group was 90%(45/50), which was significantly higher than 72%(36/50) of the control group (χ²=3.62, P<0.05). After treatment, the NDS scores of the two group were significantly lower than those before treatment (t=4.64, 5.75, all P<0.05), the GCS scores of the two groups were significantly improved (t=5.41, 7.86, all P<0.05). The NDS score of the observation group was significantly lower than that of the control group (t=5.31, P<0.05), the GCS score of the observation group was significantly higher than that of the control group(t=3.84, P<0.05). After treatment, the levels of inflammatory factors in the two groups were significantly reduced compared with those before treatment (t=3.27, 3.75, 3.38, 3.61, 5.74, 4.39, 6.52, 8.26, all P<0.05), the levels of inflammatory factors in the observation group were significantly lower than those in the control group (t=4.37, 3.92, 8.52, 4.28, all P<0.05). Conclusion Minimally invasive removal of intracranial hematoma combined with conventional treatment in the treatment of patients with cerebral hemorrhage can obtain satisfactory clinical effect, can promote neural functional recovery, improve inflammatory factor levels (hs-CRP, IL-6, IL-8, TNF alpha), it is worthy of application.

Objective To explore the perioperative management of bilateral bronchial foreign bodies in infants to improve the cure rate in the children.Methods The medical charts of 45 infants with bilateral bronchial foreign bodies were reviewed.Clinical features and key points to surgery as well as post-operative care were analyzed.Results All foreign bodies were removed with rigid bronchoscopy under general anesthesia,and 44 of 45 infants were cured with assistance of anti-infective treatments within 3-5 days and one with acute laryngitis and bronchitis was cured through 10-day anti-infective treatment with vancomycin.Conclusion Removal of foreign body by rigid bronchoscopy under general anesthesia is a preferred method to treat bilateral bronchial foreign bodies in infants,to whom early diagnosis,early treatment and postoperative careful care are keys to get a good outcome.

BACKGROUNDTo summarize the operative indication, surgical technique and perioperative ma-nagement of resection and reconstruction of carina for advanced lung cancer involving the carina.

METHODSThere were 67 patients with lung cancer invaded the carina, right central lung cancer in 46 cases, peripheral lung cancer in 4 cases, involved superior vena cava (SVC) or with bilateral anonymous veins in 11 cases, left central lung cancer in 17 cases, respectively. Surgical procedure included carinal right pneumonectomy or lobectomy in 50 cases, concomitant replacement of SVC or with bilateral anonymous veins with vascular prosthesis in 11 cases, carinal left pneumonectomy in 17 cases. Follow-up was performed in long-term.

RESULTSPerioperative death occured in 8 cases (11.94%), circulatory failure in 6 cases (8.96%), and respiratory failure in 2 cases (2.99%). The overall 1-, 3- and 5-survival rate was 77.21%, 48.23% and 32.54% respectively.

CONCLUSIONSComplete resection and reconstruction of carina, SVC or bilateral anonymous veins combined with postoperatively multiple modality therapy can get good prognosis for the patients with advanced lung cancer.

BACKGROUNDThere are many factors that affect the prognosis of non-small cell lung cancer (NSCLC). This study aims to analyze the influential factors and prognosis in patients with NSCLC following operation.

METHODSFrom January 1996 to January 2003, 1380 patients with NSCLC treated surgically were retrospectively studied. The correlation between clinicopathological characteristics and prognosis was evaluated by univariate and multivariate analyses.

RESULTSIn the whole group, 1-, 3- and 5-year survival rate was 78.85%, 49.78% and 38.96% respectively, and median survival time (MST) was 38.77 months. According to univariate analysis, tumor size, pathologic type, clinical type (central or peripheral), TNM stages, lymph node involvement, surgical procedure, postoperative chemotherapy, and cycles of chemotherapy were significantly related to the survival of patients. By multivariate analysis, tumor size, TNM stages, lymph node status and postoperative chemotherapy were independent prognostic factors.

CONCLUSIONSTumor size, TNM stages, lymph node involvement and postoperative chemotherapy are independent prognostic factors for NSCLC following the surgical procedure.

BACKGROUNDThe influence of tumor size on prognosis has been determined in different stages of lung cancer, but it is not clear yet within the same stage of lung cancer, especially for those less than 3cm in diameter. The aim of this study is to explore the impact of tumor size on prognosis in stage IA non-small cell lung cancer (NSCLC).

METHODSA total of 142 consecutive, surgically treated patients with pathologic stage IA NSCLC were analysed retrospectively. Kaplan-Meier survival curve was performed to estimate the survival of patients with different tumor size. And a COX proportional hazard regression model was used to make multivariate analysis about age, gender, pathologic type, tumor size and chemoradiotherapy or not.

RESULTSThere were 60 patients with tumor diameter less than 2.0cm, and 82 between 2.1 to 3.0cm. The overall 3-and 5-year survival rate was 84.41% and 70.89% respectively, in which tumor diameter less than 2.0cm group was 94.91% and 81.40%, tumor diameter between 2.1 to 3.0cm group was 82.18% and 64.91% (P=0.0353), respectively. In both univariate and multivariate analyses, the tumor size was an independent prognostic factor for survival.

CONCLUSIONSSince the tumor size is an independent prognostic factor for NSCLC, it is necessary to improve the level of imageological diagnosis so as to treat the patients much earlier.

BACKGROUNDWith the development of social industrialization and aging of the population, patients with lung cancer have the tendency of becoming youthful and elderly, therefore the way of treatment should be also changed. In resent years, lung cancer in young and elderly patients have been reported respectively, but simultaneous contrast analysis of clinical feature and prognosis in elderly, normal and youthful patients have been rarely reported. Based on the clinic data in the patients, the clinical feature and prognosis of patients with non-small cell lung cancer at different ages were analyzed.

METHODSFrom January 1996 to January 2003, 1380 patients with NSCLC were treated surgically in thoracic department in our hospital, the patients were divided into three group based on their age, group 1 (G1) (range ≤40), group 2 (G2) (range 41-69), group 3 (G3) (range ≥70). The clinical feature and prognosis were analyzed in each group.

RESULTSThe mean age in the whole group was 58.16±0.26, and 35.76±0.57 (range 12-40) in G1, 58.00±0.22 (range 41-69) in G2, 72.30±0.21 (range 70-80) in G3. The ratio of lung cancer in female between G1 and G3 was significant different (P=0.024). The coexisting diseases in G3 were more common than those of other groups (P=0.000). Squamous cell carcinoma was the main type in histology, accounting for 41.79% (28/67), 54.12% (644/1190) and 58.54% (72/123) in each group respectively (P=0.080), but the ratio of adenocarcinoma, higher than that of other groups, were 43.28% (29/67), 29.50% (351/1190) and 26.82% (33/123) (P=0.036). Lobectomy and pneumonectomy were the main surgical procedures, accounting for 58.21%, 65.29%, 78.86% (P=0.004) and 34.33%, 26.22%, 12.20% (P=0.001), respectively. The ratio of stage III were 43.28% (29/67), 38.82% (462/1190), and 26.02% (32/123) in each groups (P=0.015). 55.22% (37/67) in G1 received adjuvant chemotherapy, 47.48% (565/1190) in G2, and 29.27% (36/123) in G3 (P=0.000). 5-year survival rate was 38.96% in the whole group, 29.99% in G1, 39.61% in G2, and 37.99% in G3 (P=0.494).

CONCLUSIONSIn young patients with non-small cell lung cancer, female and adenocarcinoma make up the majority of the number, and a lot of patients are in advanced stage and likely to adopt adjuvant chemotherapy. While in elderly, squamous cell carcinoma accounts for the majority of the number, and more coexisting diseases are accompanied, much more complications occur after surgical procedure. Nevertheless, their prognosis has no significant difference.