Objective To evaluate the influence of endoscopic sinus surgery on olfactory disorder caused by chronic sinusitis and nasal polyps by testing the olfactory function of fifty-two patients with chronic sinusitis and nasal polyps before and after endoscopic sinus surgery and then confirming the olfactory rehabilitation of the patients.Methods The olfactory function of the fifty-two patients with chronic sinusitis and nasal polyps was tested through the CCCRC olfactory testing method pre-operation and four weeks,twelve weeks,twenty-four weeks post-operation.The results were analyzed by matched t-test.Results All results of olfactory function after treatment were significantly better than that of pre-operation(P0.05).Conclusion Olfactory function of above patients was significantly improved within the first month post-operation.There was no further improvement in the following five months compared with the first month post-operation.

Objective To investigate the application value of urine microalbumin (mALB) ,retinol binding protein(RBP) and cys-tatin C(CysC) and their combined detection in early diagnosis of type 2 diabetic nephropathy(DN) .Methods Ninety-two inpatients with DN (DN group) and 90 people undergoing the physical examination(control group) in our hospital from June 2014 to Decem-ber 2015 were collected .Urine mALB ,RBP and CysC were detected in all subjects and detection results were analyzed statistically . Results The levels of urine mALB ,RBP and CysC in the DN group were significantly higher than those in the control group ,the differences all had statistical significance (P< 0 .05) .Among 3 indicators ,the positive rate of urine mALB for detecting DN was highest (94 .57% ) ,while which of 3-index combined detection was 97 .83% ,and significantly higher than that of single detection , the difference was statistically significant(P<0 .05) .The sensitivity ,specificity ,positive predictive value ,negative predictive value and Youden index of 3-index combined detection were all higher than those of single index .The ROC curve showed that AUC of u-rine mALB for diagnosing DN was 0 .732 ,the diagnostic cut-off value was 43 .58 mg/L ,AUC of urine RBP was 0 .685 ,the diagnos-tic cut-off value was 1 .47 mg/mL ,AUC of urine CysC was 0 .701 ,the diagnostic cut-off value was 1 .42 mg/L ,while AUC of com-bined detection was 0 .928 .Conclusion Urine mALB ,RBP and CysC are better indexes reflecting renal injury .Their combined de-tection will increase the positive rate ,sensitivity and specificity for diagnosing DN .So monitoring the levels of urine mALB ,RBP and CysC has an important significance to diagnosing the occurrence and development of DN early renal injury and prevention ,treat-ment and delaying progress of DN .

OBJECTIVE: To investigate the feasibility and clinical characteristics of small partial laryngectomy without tracheotomy for T1-2 stage glottic carcinoma. METHOD: Forty-five patients with laryngeal squamaous cell carcinoma in T1-2 stage received small partial laryngectomy without tracheotomy. RESULT: All patients were primarily healed and were hospitalized for an average of 11.5 days post-operatively. In all patients, the function of respiration and the reflection of cough were normal, and laryngeal obstruction did not happen. The only postoperative complication was subcutaneous emphysema noted in 29 patients. Among them, subcutaneous emphysema extincted after 4-6 days in 26 patiens, only 3 patiens suffered from delayed healing because the subcutaneous emphysema extincted after 2 weeks. Mild subcutaneous emphysema did not affect the function of respiration and deglutition, healing of wound, and psychology of patients. All patients had been followed-up for 1-13 years. Only 2 patients died of tumor recurrence or metastasis. The function of respiration and deglutition were normal in the living patients, and no implanting metastasis on surface of trachea were found. CONCLUSION The theoretical foundation of small partial laryngectomy without tracheotomy for T1-2 stage glottic carcinoma has been well established. This surgical technique is feasible, safe and effective. It can significantly improve clinical outcome of T1-2 stage glottic carcinoma with minimal invasiveness. Furthermore, it can obviously abate the surgical, physiological and psychological trauma on patients.
Adult ; Aged ; Aged, 80 and over ; Glottis ; Humans ; Laryngeal Neoplasms ; surgery ; Laryngectomy ; methods ; Male ; Middle Aged ; Tracheotomy

Objective To investigate the long-term outcome and prognostic factors of patients with nasopharyngeal carcinoma treated with intensity-modulated radiation therapy (IMRT). Methods From February 2001 to December 2006, 419 patients with nasopharyngeal carcinoma in Cancer Center of Sun yatsen University received IMRT. The number of patients with stage Ⅰ,Ⅱ,Ⅲ and Ⅳ disease was 28, 113, 202 and 76, respectively. In all, 182 and 237 patients received radiotherapy alone and chemoradiotherapy. The prescription doses were as follows:66-70 Gy/25 -30 f to GTV_(nx), 60 -64 Gy/25 -30 f to GTV_(nd), 55 -62 Gy/25 -30 f to CTV_1, and 42 -54 Gy/25 -30 f to CTV_2. Results The median follow-up time was 49 months (6 -94 months). The number of patients with follow-up of 1-, 3-, and 5-year were 419,360 and 166, respectively. Twenty-one, 13 and 57 patients had local recurrence, regional recurrence and distant metastasis, respectively. The 5-year local control (LC) rate, regional control (RC) rate and free from distant metastasis survival rate was 92.7%, 95.8% and 85.5%, respectively. The 5-year disease-free survival (DFS) and disease-specific survival (DSS) was 76. 3% and 84.4%, respectively. In univariate analysis, T stage, primary tumor volume, N stage and volume of cervical nodes before treatment were significant predictors of DFS and DSS, favoring the patients with early T stage (84. 1% vs. 67.6% ,Χ~2 = 12. 16, P = 0. 000 : 92. 1% vs. 75. 1% ,Χ~2 = 14. 86 . P = 0. 000) , primary tumor volume less than 20 cm~3 (89. 1% vs. 62. 9% ,Χ~2 =14. 13,P=0.000;96.2% vs. 72. 1% ,Χ~2 =38. 76,P=0.000), early N stage (81.1% vs. 64. 5%, Χ~2 = 15.49, P = 0. 000; 87. 8% vs. 76. 1%, Χ~2 = 10. 89, P = 0. 001) and volume of cervical nodes less than 5 cm~3 (83. 3% vs. 68. 8%, Χ~2 = 14. 13, P = 0. 000 ; 90. 0% vs. 78. 1%, Χ~2 = 10. 71 ,P =0. 001). Multivariate analysis showed that primary tumor volume (Χ~2 = 26. 81, P = 0. 000 and Χ~2 = 28. 47, P = 0. 000) and N stage (Χ~2 = 4. 92, P = 0. 026 and Χ~2 = 9.50, P = 0. 002) were independent predictive factors for both DFS and DSS. No grade 4 acute and late toxicities were observed. In 243 patients with follow-up time more than 3 years, only 2. 8% suffered from grade 3 late toxicifies. Conclusions IMRT with or without chemotherapy can improve the long-term survival of patients with nasopharyngeal carcinoma, especially in LC and RC. Distant metastasis becomes the main treatment failure. Primary tumor volume and N stage are significant prognostic factors. Acute and late toxicities are acceptable.

OBJECTIVE: To analyze the imageology features of benign parapharyngeal space (PPS) tumors, and also to summarize our experience in removing PPS benign tumors through transoral approach. METHOD: A retrospective review was conducted to 48 patients with benign tumors in PPS during a 10-year period. CT were performed in all patients, and only a few required MRI. Transoral approach (33.3%) and transcervical (39.6%) were the most commonly performed surgical procedures followed by the transcervical-transparotid approach (27.1%). RESULT: CT scan and MRI often provided complementary information to help the surgeons delineate the size, precise location and likely cause of these tumors. After a follow-up of three years, only 2 of 48 patients had disease recurrence. The transoral approach described herein safely allowed for en bloc resection of most benign neoplasms. No significant complications attributed to the approach itself. CONCLUSION CT or MRI scan can distinguish prestyloid from poststyloid lesions, and to assess the extension of the tumor as well as its relationship with adjacent structures. The transoral approach safely provides access to some benign PPS tumors with a low rate of complications and recurrence as well as traditional transcervical approaches.
Adult ; Aged ; Female ; Humans ; Magnetic Resonance Imaging ; Male ; Middle Aged ; Neoplasms ; diagnosis ; surgery ; Otorhinolaryngologic Surgical Procedures ; methods ; Pharyngeal Neoplasms ; diagnosis ; surgery ; Retrospective Studies ; Tomography, X-Ray Computed ; Young Adult

Objective To explore the diagnostic value of serum lipoprotein(a)[Lp(a)]in cerebral infarction by a model of Logistic regression and receiver operating characteristic(ROC)curve.Methods A total of 316 patients with cerebral thrombosis from Foshan Hospital Affiliated to Southern Medical University were col-lected.According to the diagnostic criteria,the patients were divided into cerebral thrombosis group(196 ca-ses)and non-cerebral thrombosis group(120 cases).All the subjects were tested for Lp(a)by immune turbi-dimetry.To evaluate the diagnostic value of Lp(a)by applying logistic regression model,drawing ROC curves and calculating the area under the curve(AUC).Results The P25,P50,P75of Lp(a)in cerebral thrombosis group and non-cerebral thrombosis group were 97.23,238.22,430.01 and 29.80,92.27,233.86,the average rank were 185.42 and 114.52,the differences in the two groups were significant(P<0.05).Logistic regres-sion showed that the correlation between Lp(a)level and cerebral thrombosis was positive,the partial regres-sion coefficient(B)was 0.005,Wald value was 31.295.It suggested that when the levels of Lp(a)was higher the risk of cerebral thrombosis increased.The most valuable diagnosis level was 305.80 mg/L.And the area under the ROC curve(AUC)was 0.724,which has moderate diagnostic efficacy.Diagnostic specificity was 91.7%,misdiagnosis rate was 8.3%,negative predictive value was 48.7%,sensitivity was 40.8%,omission rate was 59.2%,positive predictive value was 88.9%.Conclusion The level of serum Lp(a)has high diag-nostic specificity for the diagnosis of cerebral thrombosis.

OBJECTIVE: The large sample retrospective cohort study were used to compare the diagnostic efficiency of PET/CT with conventional work-up (CWU) for evaluating nasopharyngeal carcinoma (NPC) distant metastasis. METHOD: Five hundred and fourteen patients with NPC were divided into PET/CT group and CWU group according the method of detecting distant metastasis. Chest film, abdominal ultrasonography, and bone scan were used in CWU group. Then the diagnostic efficiency of the two groups was compared. RESULT: Two hundred and sixteen patints were enrolled in PET/CT group and two hundred and nineteen-eight ones in CWU group. There were 28 out of 412 suspicious patients in CWU group were confirmed, another 3 patients confirmed without positive findings, compared with PET/CT group that all 32 suspicious patients were confirmed. The sensitivity and specificity of PET/CT were 100.0% (32/32) and 100.0% (184/184), as compared to 90.3% (28/31) and 94.8% (253/267) with CWU respectively, while there was no statistical significance. Further research found out that the percentage of patients with multiple distant metastatic sites and multiple organ metastases was higher in PET/CT group (P < 0.05), and similarly of patients with distant metastasis in N2-3 stages (P < 0.01). CONCLUSION Our results suggest that PET/CT appears to be slightly superior to conventional work-up in assessment of distant metastasis in NPC patients, but CWU is still a cheap and practical method.
Aged ; Carcinoma ; Cohort Studies ; Female ; Fluorodeoxyglucose F18 ; Humans ; Male ; Middle Aged ; Nasopharyngeal Carcinoma ; Nasopharyngeal Neoplasms ; diagnosis ; secondary ; Positron-Emission Tomography ; methods ; Radiopharmaceuticals ; Retrospective Studies ; Sensitivity and Specificity ; Tomography, X-Ray Computed ; Ultrasonography