Two hundred cates of nasopharyngeal carcinoma (NPC) admitted to this department from Feb. 1985 to May. 1988 were analysed according to the CT scanning and clinical findings of the primary lesions prior to radiotherapy...Two hundred cates of nasopharyngeal carcinoma (NPC) admitted to this department from Feb. 1985 to May. 1988 were analysed according to the CT scanning and clinical findings of the primary lesions prior to radiotherapy. The results showed that involvement of parapharyngeal space was very common in NPC, about 80% (160/200 cases) ; particularly unilateral or bilateral retro-styloid spaces, about 69.5% (139/200 cases). It was proposed that patients with NPC had a high Incidence of ipsilateral cervical node metastasis. Contralateral cervical node metastasis was rare. The development of cervical node metastasto in NPC has two modes: one Is direct Infiltration of the retro-stylold space by the lesion; the other Is along the nasopharyngeal lymphatic rete. The data also showed that patients with NPC who presented symptoms of Ⅸ- Ⅲ cranial nerve paralyses always had ipsilateral or bilateral retro- styloid space Infiltrations.展开更多
A new class of bilcvel generalized mixed equilibrium problems involving setvalued mappings is introduced and studied in a real Banach space. By using the auxiliary principle technique, new iterative algorithms for sol...A new class of bilcvel generalized mixed equilibrium problems involving setvalued mappings is introduced and studied in a real Banach space. By using the auxiliary principle technique, new iterative algorithms for solving the generalized mixed equilibrium problems and bilevel generalized mixed equilibrium problems involving set-valued mappings are suggested and analyzed. Existence of solutions and strong convergence of the iterative sequences generated by the algorithms are proved under quite mild conditions. The behavior of the solution set of the generalized mixed equilibrium problems and bilevel generalized mixed equilibrium problems is also discussed. These results are new and generalize some recent results in this field.展开更多
Neoadjuvant chemotherapy(NACT),which can reduce the size and therefore increase the resectability of tumors,has recently evolved as a treatment for locally advanced cervical cancer.NACT has been reported to decrease t...Neoadjuvant chemotherapy(NACT),which can reduce the size and therefore increase the resectability of tumors,has recently evolved as a treatment for locally advanced cervical cancer.NACT has been reported to decrease the risk of pathologic factors related to prognosis of cervical cancer.To further assess the effects of NACT on surgery and the pathologic characteristics of cervical cancer,we reviewed 110 cases of locally advanced cervical cancer treated with radical hysterectomy with or without NACT at the People's Hospital of Peking University between January 2006 and December 2010.Of 110 patients,68 underwent platinum-based NACT prior to surgery(NACT group) and 42 underwent primary surgery treatment(PST group).Our results showed 48 of 68(70.6%) patients achieved a complete response or partial response to NACT.Estimated blood loss,operation time,and number of removed lymph nodes during surgery,as well as complication rates during and after surgery were not significantly different between the NACT group and the PST group.The rates of deep stromal invasion,positive parametria,positive surgical vaginal margins,and lymph node metastasis were not significantly different between the two groups.However,the rate of lymph-vascular space involvement(LVSI) was significantly lower in the NACT group than in the PST group(P = 0.021).In addition,the response rate of NACT was significantly higher in the patients with chemotherapeutic drugs administrated via artery than via vein.Our results suggest that NACT is a safe and effective treatment for locally advanced cervical cancer and significantly decreases the rate of LVSI.展开更多
目的探讨椎前间隙侵犯(prevertebral space involvement,PVSI)对鼻咽癌预后的影响。方法回顾性分析柳州市人民医院2009年7月至2015年12月经病理证实的初治并排除远处转移的250例鼻咽癌病人。所有病人放疗前行鼻咽部及颈部MRI检查,接受...目的探讨椎前间隙侵犯(prevertebral space involvement,PVSI)对鼻咽癌预后的影响。方法回顾性分析柳州市人民医院2009年7月至2015年12月经病理证实的初治并排除远处转移的250例鼻咽癌病人。所有病人放疗前行鼻咽部及颈部MRI检查,接受二维、三维适形或调强适形放疗联合或不联合化疗。Kaplan⁃Meier法计算生存率并经Log⁃rank检验,采用Cox多因素分析比较预后。结果中位随访时间56个月。共87例病人椎前间隙受侵(34.8%),为椎前间隙受侵组,另外163例为椎前间隙未受侵组。椎前间隙受侵组较未受侵组的T分期、N分期及临床分期明显较差(均P<0.001)。椎前间隙受侵组与未受侵组相比,总生存率(OS)、无局部区域复发生存(LRFS)、无远处转移生存(DMFS)分别为83.4%比64.4%(P<0.001)、90.8%比85.1%(P=0.069)、87.7%比71.3%(P<0.001)。Cox多因素分析结果提示,PVSI是影响两组病人OS(P=0.013)的因素和DMFS(P<0.001)的独立预后因素。结论鼻咽癌椎前间隙受侵发生率较高,且较未受侵者的OS、DMFS低,PVSI是影响鼻咽癌病人预后因素。展开更多
文摘Two hundred cates of nasopharyngeal carcinoma (NPC) admitted to this department from Feb. 1985 to May. 1988 were analysed according to the CT scanning and clinical findings of the primary lesions prior to radiotherapy. The results showed that involvement of parapharyngeal space was very common in NPC, about 80% (160/200 cases) ; particularly unilateral or bilateral retro-styloid spaces, about 69.5% (139/200 cases). It was proposed that patients with NPC had a high Incidence of ipsilateral cervical node metastasis. Contralateral cervical node metastasis was rare. The development of cervical node metastasto in NPC has two modes: one Is direct Infiltration of the retro-stylold space by the lesion; the other Is along the nasopharyngeal lymphatic rete. The data also showed that patients with NPC who presented symptoms of Ⅸ- Ⅲ cranial nerve paralyses always had ipsilateral or bilateral retro- styloid space Infiltrations.
基金supported by the Scientific Research Fun of Sichuan Normal University (11ZDL01)the Sichuan Province Leading Academic Discipline Project (SZD0406)
文摘A new class of bilcvel generalized mixed equilibrium problems involving setvalued mappings is introduced and studied in a real Banach space. By using the auxiliary principle technique, new iterative algorithms for solving the generalized mixed equilibrium problems and bilevel generalized mixed equilibrium problems involving set-valued mappings are suggested and analyzed. Existence of solutions and strong convergence of the iterative sequences generated by the algorithms are proved under quite mild conditions. The behavior of the solution set of the generalized mixed equilibrium problems and bilevel generalized mixed equilibrium problems is also discussed. These results are new and generalize some recent results in this field.
文摘Neoadjuvant chemotherapy(NACT),which can reduce the size and therefore increase the resectability of tumors,has recently evolved as a treatment for locally advanced cervical cancer.NACT has been reported to decrease the risk of pathologic factors related to prognosis of cervical cancer.To further assess the effects of NACT on surgery and the pathologic characteristics of cervical cancer,we reviewed 110 cases of locally advanced cervical cancer treated with radical hysterectomy with or without NACT at the People's Hospital of Peking University between January 2006 and December 2010.Of 110 patients,68 underwent platinum-based NACT prior to surgery(NACT group) and 42 underwent primary surgery treatment(PST group).Our results showed 48 of 68(70.6%) patients achieved a complete response or partial response to NACT.Estimated blood loss,operation time,and number of removed lymph nodes during surgery,as well as complication rates during and after surgery were not significantly different between the NACT group and the PST group.The rates of deep stromal invasion,positive parametria,positive surgical vaginal margins,and lymph node metastasis were not significantly different between the two groups.However,the rate of lymph-vascular space involvement(LVSI) was significantly lower in the NACT group than in the PST group(P = 0.021).In addition,the response rate of NACT was significantly higher in the patients with chemotherapeutic drugs administrated via artery than via vein.Our results suggest that NACT is a safe and effective treatment for locally advanced cervical cancer and significantly decreases the rate of LVSI.
文摘目的探讨椎前间隙侵犯(prevertebral space involvement,PVSI)对鼻咽癌预后的影响。方法回顾性分析柳州市人民医院2009年7月至2015年12月经病理证实的初治并排除远处转移的250例鼻咽癌病人。所有病人放疗前行鼻咽部及颈部MRI检查,接受二维、三维适形或调强适形放疗联合或不联合化疗。Kaplan⁃Meier法计算生存率并经Log⁃rank检验,采用Cox多因素分析比较预后。结果中位随访时间56个月。共87例病人椎前间隙受侵(34.8%),为椎前间隙受侵组,另外163例为椎前间隙未受侵组。椎前间隙受侵组较未受侵组的T分期、N分期及临床分期明显较差(均P<0.001)。椎前间隙受侵组与未受侵组相比,总生存率(OS)、无局部区域复发生存(LRFS)、无远处转移生存(DMFS)分别为83.4%比64.4%(P<0.001)、90.8%比85.1%(P=0.069)、87.7%比71.3%(P<0.001)。Cox多因素分析结果提示,PVSI是影响两组病人OS(P=0.013)的因素和DMFS(P<0.001)的独立预后因素。结论鼻咽癌椎前间隙受侵发生率较高,且较未受侵者的OS、DMFS低,PVSI是影响鼻咽癌病人预后因素。
