OBJECTIVEThe objective of this study is to investigate the association between laryngeal carcinoma and laryngopharyngeal reflux.

METHODSThis was a case-control study with 31 laryngeal cancer patients who had undergone 24-hour ambulatory double pH monitoring and 76 in the control group which were divided into negative group (36 patients) and positive group (40 patients) by the score of RSI (reflux symptom index) and RFI (reflux findings index) scale. The results of reflux and parameters of 24-hour ambulatory double pH monitoring among the three groups were statistically analysed.

RESULTSThe smoking rate of 80.6% (25/31) in laryngeal carcinoma group was significantly higher than that of (36.1%, P < 0.0167) in the negative group while it did not vary in laryngeal carcinoma group and the positive group (65.0%, P > 0.0167). The drinking rate of 71.0% (22/31) in laryngeal carcinoma group was higher than that of (36.1%, P < 0.0167) in the negative group whereas there was no significant difference between laryngeal carcinoma group and positive group (50.0%, P > 0.0167). The positive rate of laryngopharyngeal reflux in laryngeal carcinoma group, the positive group, the negative group were 74.2% (23/31), 16.7% (6/36) and 52.5% (21/40) respectively, which was significantly different (P < 0.05). The positive rate of gastroesophageal reflux in the three groups above were 71.0% (22/31), 52.8% (19/36) and 75.0% (30/40), which had no significant difference (P > 0.05). The positive rate of laryngopharyngeal reflux differed in laryngeal carcinoma group and the negative group (P < 0.0167) while did not differ in laryngeal carcinoma group and the positive group (P > 0.0167). In the results of 24-hour ambulatory double pH monitoring, there was significant difference in the total and upright reflux number, the total reflux time, the percent times for the pH falling below 4, total reflux number which lasted more than 5 minutes and DeMeester Scores.

CONCLUSIONSThe positive rate of laryngopharyngeal reflux in laryngeal carcinoma group was very high while the drinking and smoking rate were also high. Therefore whether the laryngopharyngeal reflux is a risk factor of the laryngeal carcinoma, it needs further research.

Adult ; Aged ; Case-Control Studies ; Esophageal pH Monitoring ; Female ; Humans ; Laryngeal Neoplasms ; complications ; epidemiology ; Laryngopharyngeal Reflux ; complications ; epidemiology ; Male ; Middle Aged ; Risk Factors

Objective The objective of this study is to investigate the association between laryngeal carcinoma and laryngopharyngeal reflux .Methods This was a case-control study with 31 laryngeal cancer patients who had undergone 24-hour ambulatory double pH monitoring and 76 in the control group which were divided into negative group ( 36 patients ) and positive group ( 40 patients ) by the score of RSI ( reflux symptom index) and RFI ( reflux findings index ) scale.The results of reflux and parameters of 24-hour ambulatory double pH monitoring among the three groups were statistically analysed .Results The smoking rate of 80.6%(25/31) in laryngeal carcinoma group was significantly higher than that of (36.1%, P<0.0167) in the negative group while it did not vary in laryngeal carcinoma group and the positive group (65.0%, P>0.0167).The drinking rate of 71.0% (22/31) in laryngeal carcinoma group was higher than that of (36.1%, P<0.0167) in the negative group whereas there was no significant difference between laryngeal carcinoma group and positive group (50.0%, P>0.0167).The positive rate of laryngopharyngeal reflux in laryngeal carcinoma group , the positive group, the negative group were 74.2%(23/31), 16.7%(6/36) and 52.5%(21/40) respectively, which was significantly different (P<0.05).The positive rate of gastroesophageal reflux in the three groups above were 71.0% (22/31), 52.8% (19/36) and 75.0%(30/40), which had no significant difference ( P>0.05).The positive rate of laryngopharyngeal reflux differed in laryngeal carcinoma group and the negative group (P<0.0167) while did not differ in laryngeal carcinoma group and the positive group ( P >0.0167).In the results of 24-hour ambulatory double pH monitoring , there was significant difference in the total and upright reflux number , the total reflux time , the percent times for the pH falling below 4, total reflux number which lasted more than 5 minutes and DeMeester Scores .Conclusions The positive rate of laryngopharyngeal reflux in laryngeal carcinoma group was very high while the drinking and smoking rate were also high .Therefore whether the laryngopharyngeal reflux is a risk factor of the laryngeal carcinoma ,it needs further research .

OBJECTIVE:To explore the effects of PDCA method in the new specialties accreditation of drug clinical trial institution. METHODS:PDCA method was used for drug clinical trial institution office and 9 newly applied majors in our hospital. Total score of each major were compared before and after intervention,in order to make the newly applied major meet the standard of specialties accreditation of drug clinical trial. RESULTS:After conducting PDCA related training,establishing new specialties accreditation work group,formulating work goals and plans,9 new majors of our hospital were all approved by CFDA for new specialties accreditation;after intervention total score of each accreditation item for newly applied major were all higher than before intervention,with statistical significance(P<0.05),improved by more than 45.57%. CONCLUSIONS:It is feasible to adopt PDCA method in the preparation of new specialty accreditation of drug clinical trials. It is of significance to guarantee scientific and reliable drug clinical trial results and protect the rights and interests of the subjects.

Objective:To investigate the peripheral blood inflammatory markers including white blood cell count (WBC), monocytes, neutrophils, lymphocytes, platelets, neutrophil/lymphocyte ratio (NLR), platelet/lymphocyte ratio (PLR), high-density lipoprotein(HDL-C), low-density lipoprotein and fibrinogen (FIB) in Ménière′s disease (MD) patients with and without migraine, and to explore the relationship between the inflammatory response with MD and migraine.Methods:The general physical condition, clinical manifestations, pure-tone audiometry, and peripheral blood inflammatory markers of 92 unilateral MD patients who were hospitalized in Peking University People′s Hospital for surgical treatment from January 2017 to January 2021 were continuously collected. Meanwhile, 50 healthy controls matched with age and sex were included, and their general physical conditions and peripheral blood inflammatory markers were also collected. This study consisted of two parts. First, the differences in epidemical characteristics and peripheral blood inflammatory markers between MD patients and healthy controls were compared by univariate analysis. Second, all 92 MD patients were divided into two subgroups according to whether they were accompanied by migraine. The clinical characteristics and peripheral blood inflammatory markers of MD patients with and without migraine were compared by univariate analysis. Thereafter, binary Logistic regression was used to analyze the related factors of whether MD patients were accompanied with migraine.Results:Compared with the healthy control group, the peripheral blood WBC, neutrophils and FIB of MD patients were significantly increased (all P<0.05). Compared with MD patients without migraine, MD patients with migraine had higher female prevalence, longer disease history, lower low-frequency hearing threshold, higher frequency of vertigo attacks and higher HDL-C levels (all P<0.05), meanwhile, female, frequency of vestibular attacks and HDL-C were independent related factors of whether MD patients were accompanied with migraine. Conclusion:The occurrence of MD and migraine may be related to the inflammatory response. The level of anti-inflammatory factors in the blood of MD patients with migraine are higher, suggesting that the inflammatory response status of MD patients with and without migraine is different.