1.Efficacy of nasal packing, septal suture technique and vacuum sealing drainage after nasal septum surgery.
Baoqiang DAI ; Weiwei LIU ; Aiyan JIN ; Xue JIANG ; Lichen FENG
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2014;28(2):118-121
OBJECTIVE:
The objective of this study was to evaluate the effect of nasal packing, septal suture technique and vacuum sealing drainage (VSD) after septoplasty.
METHOD:
Ninety patients of nasal septal deviation in Combination with outfracture of the inferior turbinates who had received septoplasty were selected in this study. The patients were allocated into three groups, with thirty in each: for packing group, marcel materials were used for nasal packing after septoplasty; for suturing group, septal suture technique was performed after septoplasty; for VSD group, one drainage tube was used for negative pressure sucking after septoplasty without nasal packing. Postoperative signs and symptoms were compared between three groups. The comfort degree assessment included headache and nasal obstruction were evaluated by using visual analogue scale (VAS) at the 12th hour and 24 hour after operation. The edema in nasal cavity, hemorrhage. abscess,adhesive and healing rates after operation were compared among three groups.
RESULT:
The VAS score of headache and nasal obstruction and the severity of patient's conditions were significantly less in septal suture group and VSD group than that in packing group at the 12th and 24th hour after operation. The mucosa edema of nasal cavity was significantly slighter in septal suture group and VSD group than that in packing group at the third day after operation. The healing rates and number of complications are better in septal suture group and VSD group than those in packing group at the 7th day after operation. There were no hemorrhage or abscess in VSD group.
CONCLUSION
Septal suture technique and VSD after septoplasty can significantly relieve the distress of patients and reduce the healing time of mucosa in nasal cavity without increasing the risk of complications.
Adolescent
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Adult
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Aged
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Female
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Humans
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Male
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Middle Aged
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Nasal Obstruction
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surgery
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Nasal Septum
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surgery
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Nasal Surgical Procedures
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Negative-Pressure Wound Therapy
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methods
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Postoperative Period
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Rhinoplasty
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methods
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Suture Techniques
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Young Adult
2.Comparative study of gross tumor volume shown on MRI and FDG PET/CT of nasopharyngeal carcinoma
Qin LIN ; Hua WU ; Luchao ZHU ; Lirong FU ; Mingming DAI ; Lichen WANG
Chinese Journal of Radiation Oncology 2012;(6):492-495
Objective To compare gross tumor volume (GTV) of nasopharyngeal carcinoma (NPC) according to MRI and FDG PET/CT and to investigated four fixed threshold methods to delineate the GTV using FDG PET/CT.Methods Fifty patients with primary biopsy-proven NPC were prospectively were enrolled into the study.FDG PET/CT scans and MRI were carried out within one week prior to pretreatment,respectively.The GTV was named GTV-MRI (GTV were delineated according to MRI),GTV-PETvis,GTV-PET30,GTV-PET40,GTV-PET50 (GTV was delineated according to the PET-based GTVs obtained by visual interpretationor,by percentage of the SUVmax (30%,40%,50%) thresholds,respectively).The differences were compared among the GTV-MRI,GTV-PETvis,GTV-PET30,GTV-PET40 and GTV-PET50 in different by Wilcoxon test.Results Of 50 patients,the median of volume descending order were: GTV-MRI 27.8 cm3,GTV-PETvis 22.2 cm3,GTV-PET30 22.7 cm3,GTV-PET40 14.4 cm3 and GTV-PET50 9.0 cm3.However,there was no significant difference between GTV-PETvis and GTV-PET30 (Z=-0.05,P=0.958),as well as GTV-MRI and GTV-PETvis or GTV-PET30 in 25 patients who were T1-2 stage (Z =-0.93,-0.93,P=0.353,O.353),the other GTVs were all different in 50 patients' (Z=-5.74-2.09,P =0.000-0.037).Conclusions All the GTVs delineated by the different methods of using FDG PET/CT were less than the GTV delineated by MRI.The potential advantages with the GTV-PETvis or GTV-PET30 delineated by FDG PET/CT are reduction of biological metabolic tumor volume in GTV delineation and reduction of the size of the GTV in NPC patients.
3.Advances of nimotuzumab in the treatment of esophageal squamous cell carcinoma
Lichen DAI ; Lijun HU ; Jingping YU
Journal of International Oncology 2022;49(8):484-489
Esophageal squamous cell carcinoma (ESCC) is the most predominant pathological type of esophageal cancer in China. In recent years, with the development of molecular targeted drugs, targeted therapy has become a hot research topic in the field of ESCC treatment. Nimotuzumab is the first humanized monoclonal antibody targeting epidermal growth factor receptor (EGFR) in China, which has been approved for the treatment of early or locally advanced nasopharyngeal carcinoma. Several phase Ⅱ-Ⅲ clinical trials have explored the use of nimotuzumab in the treatment of ESCC, confirming its significant efficacy and survival benefit in the treatment of advanced ESCC, as well as its favorable safety profile.
4.The effectiveness and safety of concurrent chemoradiotherapy combined with nimotuzumab for patients with inoperable esophageal squamous cell carcinoma
Lichen DAI ; Jianfeng HUANG ; Lijun HU ; Jia WU ; Jianlin WANG ; Qinghong MENG ; Fei SUN ; Qiuhua DUAN ; Jingping YU
Chinese Journal of Radiological Medicine and Protection 2023;43(3):182-188
Objective:To evaluate the effectiveness and safety of concurrent chemoradiotherapy combined with nimotuzumab in the treatment of patients with inoperable esophageal squamous cell carcinoma (ESCC).Methods:A retrospective analysis was conducted on the clinical data of 503 patients with inoperable ESCC who underwent concurrent chemoradiotherapy in the Department of Radiation Oncology, Changzhou No. 2 People′s Hospital Affiliated to Nanjing Medical University and Department of Radiation Oncology, Affiliated Hospital of Jiangnan University from 2014 to 2020. Among these patients, 69 received concurrent chemoradiotherapy combined with nimotuzumab (the combined therapy group) and 434 received concurrent chemoradiotherapy alone (the concurrent chemoradiotherapy group). Patients of both groups were matched at a ratio of 1∶2 using the propensity score matching (PSM) method. As a result, 168 patients were determined for clinical analysis, including 61 in the combined therapy group and 107 in the concurrent chemoradiotherapy group. The short-term efficacy and adverse reactions of both groups were compared. The overall survival (OS) curves and progression-free survival (PFS) curves were plotted using the Kaplan-Meier method for the Log-rank test.Results:The two groups showed no statistical difference ( P > 0.05) in clinical baseline characteristics after the PSM. The objective response rate (ORR) of the combined therapy group was significantly higher than that of the concurrent chemoradiotherapy group with statistically significant differences (85.2% vs. 71.0%, χ2 = 4.33, P = 0.037). There was no statistical difference (98.4% vs. 91.6%, P > 0.05) in the disease control rate (DCR) between the two groups. The combined therapy group had median PFS of 28.07 months and 1-, 3-, and 5-year PFS ratios of 78.2%, 37.5% and 29.1%, respectively. The concurrent chemoradiotherapy group had mPFS of 19.54 months and 1-, 3-, and 5-year PFS ratios of 72.9%, 28.3% and 21.3%, respectively. Both groups showed statistically significant differences in PFS ( χ2 = 4.49, P = 0.034). The combined group had median OS of 34.93 months and 1-, 3-, and 5-year OS ratios of 88.5%, 46.8% and 37.4%, respectively. The concurrent chemoradiotherapy group had mOS of 24.30 months and 1-, 3-, and 5-year OS ratios of 81.3%, 35.2% and 28.0%, respectively. Both groups showed statistically significant differences in OS (χ 2= 5.11, P = 0.024), but did not show statistical differences ( P > 0.05) in the severity degree of each adverse effect during the treatment. Conclusions:Concurrent chemoradiotherapy combined with nimotuzumab can improve the ORR and prolong the PFS and OS of patients with inoperable ESCC compared with concurrent chemoradiotherapy alone. Furthermore, combining with nimotuzumab does not increase adverse effects and can be tolerated by patients with high safety.
5.Value of pancreatic anatomic structure under standard pancreatic neck transection in predicting pancreatic fistula after pancreaticoduodenectomy
Lichen ZHOU ; Zhen TAN ; Yaping TANG ; Zhirong ZHAO ; Ruiwu DAI
Journal of Clinical Hepatology 2022;38(12):2807-2813
Objective To investigate and validate the effect of relevant parameters of pancreatic anatomic structure under standard pancreatic neck transection in predicting postoperative pancreatic fistula (POPF). Methods A total of 140 patients who underwent pancreaticoduodenectomy (PD) in The General Hospital of Western Theater Command from June 2016 to December 2019 were enrolled as prediction group, and 82 patients who underwent PD in the same hospital from January 2020 to March 2021 were enrolled as validation group. Baseline levels were compared between the two groups. A univariate analysis was performed for the prediction group to screen out the risk factors for POPF, and in the validation group, the interclass correlation coefficient (ICC) was used to compare the consistency between preoperative imaging measurements and actual intraoperative measurements. The risk factors for POPF were validated in each group. The t -test was used for comparison of normally distributed continuous data between groups, and the Mann-Whitney U test was used for comparison of continuous data with skewed distribution between groups; the chi-square test was used for comparison of categorical data between groups. The multivariate logistic regression analysis was used to investigate the risk factors for POPF. Youden index was calculated, GraphPad Prism was used to plot the receiver operating characteristic (ROC) curve, and the area under the ROC curve (AUC) was calculated. ICC was used for the reliability analysis of preoperative imaging measurements and actual intraoperative measurements. Results Pancreatic duct diameter at the pancreatic neck (odds ratio [ OR ]=0.347, 95% confidence interval [ CI ]: 0.192-0.626, P < 0.001), the major axis of the pancreatic neck parenchyma ( OR =1.127, 95% CI : 1.031-1.231, P =0.008), and the minor axis of the pancreatic neck parenchyma ( OR =1.350, 95% CI : 1.137-1.602, P =0.001) were risk factors for POPF. Pancreatic duct diameter at the pancreatic neck had an AUC of 0.785 (95% CI : 0.128-0.302, P < 0.001) and a cut-off value of 2.7 mm; the major axis of the pancreatic neck parenchyma had an AUC of 0.669 (95% CI : 0.564-0.774, P =0.006) and a cut-off value of 19.3 mm, and the minor axis of the pancreatic neck parenchyma had an AUC of 0.720 (95% CI : 0.627-0.813, P < 0.001) and a cut-off value of 9.9 mm. Preoperative imaging measurements were highly consistent with actual intraoperative measurements for 30 patients in the validation group, with an ICC of > 0.75 ( P < 0.001). Grouping validation of cut-off values showed that there was a significant different in the incidence rate of POPF between the high-risk group and the low-risk group based on pancreatic duct diameter at the pancreatic neck ( χ 2 =0.645, P =0.011), as well as between the high-risk group and the low-risk group based on the minor axis of the pancreatic neck parenchyma ( χ 2 =5.901, P =0.015). Conclusion Structural features of the pancreatic neck under standard pancreatic neck transection are risk factors for POPF, which can be differentiated by preoperative CT, and the method is easy and convenient in clinical practice.