Objective:To investigate the impact of short-term exposure to atmospheric pollutants on the number of acute stroke daily admissions in Taiyuan, China.Methods:The case data of patients with stroke from three large hospitals in different regions of Taiyuan, Shanxi Province from January 1, 2018 to December 31, 2019 were collected. The daily average concentrations of atmospheric pollutants and meteorological data in Taiyuan during the same period were collected. Spearman rank correlation was used to analyze the correlation between meteorological factors and atmospheric pollutants, and a generalized additive model (GAM) based on time series research and analysis was used to investigate the impact and lag effect of air pollutants on the number of stroke daily admissions. Stratified analysis was performed based on different genders and ages (≤64 years, 65-74 years, and ≥75 years).Results:Between 2018 and 2019, a total of 4 921 patients with acute stroke were collected from three large hospitals, with a daily average of 6.74 stroke admissions. Among them, 4 310 patients (87.6%) had ischemic stroke, 521 (10.6%) had cerebral hemorrhage, and 90 (1.8%) had subarachnoid hemorrhage. GAM analysis showed that there was a significant correlation between short-term exposure to PM 2.5, PM 10, and SO 2 and the number of stroke daily admissions. All three had a significant impact on the number of stroke daily admissions on the day of onset and 3 days later. The maximum effect value was reached on the day of onset, and when the average concentrations of PM 2.5, PM 10, and SO 2 increase by 10 μg/m 3, the number of stroke daily admissions increased by 1.48% (95% confidence interval [ CI] 0.46%-2.53%), 0.80% (95% CI 0.25%-1.36%), and 2.80% (95% CI 0.76%-4.88%), respectively. Stratified analysis showed that exposure to PM 2.5, PM 10, SO 2, and CO had a more significant impact on the number of stroke daily admissions in male patients, while only PM 10 showed positive results in females. Age stratified analysis showed that PM 2.5 significantly increased the number of stroke daily admissions in individuals aged ≥75 years. Conclusion:Short-term exposure to atmospheric pollutants (PM 2.5, PM 10, SO 2, and CO) will to some extent increase the number of stroke daily admissions among residents of Taiyuan, especially among males and those aged ≥75 years.

Objective:Correct chest compression posture (CCP) is an important basis for high-quality cardiopulmonary resuscitation, but the research on CCP was still very limited. In this study, a new automatic analysis model was developed to achieve the purpose of objectification, standardization and automation of CCP monitoring.Methods:A total of 15 participants, including 11 professionals and 4 nonprofessionals, were recruited to participate in the field experiment. The video data were recorded simultaneously with zed cameras in the front and 45-degree sides. All participants performed 120 consecutive external chest compression operations on the Smartman CPR simulator. Three experts annotated the videos independently. An intelligent algorithm was used to extract human bone points for subsequent analysis and model development. The chi-square test was used to compare the rates of the professional and nonprofessional groups.Results:The results showed that problems with wrists, fingers, center of body weight and elbow bending had the highest incidence. Through 28 800 sets of standard human skeleton point coordinate data, we obtained a reasonable range of arm angles of 169.24°- 180.00° for the left arm and 168.49°-180.00° for the right arm. By the same method, the reasonable range of the center of gravity angle is 0.00°-18.46°. Based on these results, a new chest compression posture detection model based on a dual ZED camera was developed, which can accurately identify CCP errors (accuracy 91.31%; sensitivity 80.16%; specificity 93.53%).Conclusions:This study innovatively proposed an objective evaluation method for CCP. Moreover, a new chest compression posture detection model based on a dual ZED camera was developed, which can accurately identify CCP errors to achieve automation and standardization of quality control in CPR training.

Cardiac hypertrophy is a common physiological or pathological process, and pathological cardiac hypertrophy can lead to heart failure, sudden death, etc. The role of microRNA (miRNA or MIR) in myocardial hypertrophy has gradually attracted public attention. miR-1 plays a certain protective role in the occurrence of cardiac hypertrophy. miR-133 is a key factor in the establishment of mast gene program, which is very important for the development of myocardial hypertrophy. Carvedilol and other drugs can regulate the expression of miR-133. miR-208a plays an important physiological role in the cardiovascular system, and its expression level changes dynamically in a variety of cardiovascular diseases such as cardiac hypertrophy, which is closely related to the progression and prognosis of the disease. The expression of miR-199a is up-regulated in pressure-overload cardiac hypertrophy, and it is found that miR-199a can inhibit autophagy of cardiomyocytes and induce the occurrence of cardiac hypertrophy. miR-200c can protect cardiomyocytes through a variety of pathways. miRNA may become an important biomarker or drug therapeutic target for cardiac hypertrophy. With the deepening of the research on non-coding RNAs including miRNA, its regulation on the occurrence of cardiac hypertrophy and the pathological process of heart failure will be further revealed.

Objective:To explore the effect of drug combined with CO2 laser minimally invasive surgery in the treatment of patients with vascularized vocal cord inflammation, and the influence on the voice function of patients.Methods:From April 2018 to July 2019, 74 patients with vascularized vocal cord inflammation admitted in the Affiliated Hospital of Yangzhou University were divided into two groups according to the random number table method, with 37 cases in each group.The patients in the control group were treated with oral medicine.The patients in the observation group were treated with medicine combined with CO 2 laser minimally invasive surgery.The voice quality, improvement of voice disorders, recurrence and patients' satisfaction were observed. Results:After treatment for 12 months, the total hoarseness(G), roughness(R) and breath(B) scores in the observation group were (1.60±0.13)points, (1.71±0.21)points and (1.42±0.12)points, respectively, which were significantly lower than those in the control group [(1.88±0.16)points, (1.98±0.10)points and (1.78±0.13)points] ( t=8.262, 7.061, 12.377, all P<0.05). After treatment, the functional, physiological and emotional scores of voice disorders index(VHI) and total score in the observation group were (10.10±1.03)points, (13.26±2.10)points, (7.30±1.10)points, (31.26±4.74)points, respectively, which were significantly lower than those in the control group [(11.63±2.16)points, (15.42±2.16)points, (8.86±1.05)points, (35.86±5.33)points] ( t=3.889, 4.361, 6.240, 19.103, all P<0.05). The recurrence rates at the first and third month after treatment in the observation group were 2.70%(1/37) and 8.11%(2/37), respectively, which were significantly lower than those in the control group [16.22%(6/37) and 27.03%(10/37)] (χ 2=3.945, 4.573, all P<0.05). The satisfaction rate of patients in the observation group was 94.59%(35/37), which was significantly higher than 78.38%(29/37) in the control group(χ 2=4.163, P<0.05). Conclusion:On the basis of conventional drug treatment, CO 2 laser microinvasive surgery can effectively improve the treatment effect, improve the voice function of patients, and significantly reduce the recurrence rate, the overall effect and prognosis are better.

Sixty-three elderly patients with allergic rhinitis and symptoms of anxiety and depression attending in the Affiliated Hospital of Yangzhou University from August 2016 to August 2018 were randomly divided into two groups: 30 patients received deanxit combined with anti-allergic drugs for treatment (study group) and another 30 patients received anti-allergic drugs treatment alone (control group). Subjective nasal obstruction was evaluated by Visual Analogue Scale (VAS), and the quality of life of patients was assessed by Rhinoconjunetivitis Quality of Life Questionnaire (RQLQ).The anxiety and depression mood changes were assessed by Self-rating Anxiety Scale (SAS) sand Self-rating Depression Scale (SDS).The scores of symptoms and mood were compared after 4 weeks and 8 weeks of treatment. The clinical nasal symptoms VAS score, the total RQLQ scores and its 7 domains scores, SDS and SAS scores of patients in two groups were significantly reduced compared to those before treatment ( P<0.05). The VAS score, the total of RQLQ scores and its 7 domains scores, SDS and SAS scores were significantly lower in the study group than those in the control group after 4 weeks and 8 weeks of treatment.The total effective rate of study group was significantly higher than those of the control group (χ 2=6.922, P=0.031; χ 2=11.544, P=0.003). Deanxit combined with anti-allergic drugs shows significant clinical efficacy, it also can improve the symptoms of anxiety and depression, and the quality of life for elderly patients with allergic rhinitis.

OBJECTIVE To investigate the clinical features and therapeutic methods of ameloblastoma in nasal cavity and paranasal sinuses. METHODS The clinical data of 6 cases of ameloblastoma in nasal cavity and paranasal sinuses diagnosed by pathology were analyzed retrospectively, and the relevant literature were reviewed. RESULTS All of the 6 cases received surgical treatment. The follow-up period was 15 months to 10 years after operation.3 patients recurred until the last follow up. Among them, 2 cases recurred once, 1 case recurred 2 times, no patient died of this tumor. CONCLUSION The incidence of ameloblastoma in nasal cavity and paranasal sinuses is low and the symptoms are nonspecific, the diagnosis mainly depends on pathology and immunohistochemistry. CT and MRI examinations of ameloblastoma are helpful in diagnosis and differential diagnosis of the lesion. The main treatment is surgical resection of the lesion, the recurrence rate is higher. It has malignant tendency, and long-term follow-up is needed.

Objective To research the pathogen characteristics and influencing factors for peritonsillar peripheral space infections in acute tonsillitis patients,so as to take measure to reduce the peritonsillar peripheral space infections.Methods 898 acute tonsillitis patients who received treatment were chosen as study subjects.Bacteria analyzer was adopted to identify pathogens.Chi-square test was used to analyze the univariate factor,and logistic regression analysis was conducted to different factors.Results 228 patients were involved the complications of peritonsillar peripheral space infections(cellulitis in 52 cases or abscesses in 176 cases),and the infection rate was 25.4％.Bacterial cultivation performed in 177 patients and positive results were detected in 107.The top three infections bacteria were Staphylococcus aureus (21.5％),Streptococcus viridians (19.6％) and Klebsiella pneumoniae (15.9％).Univariate factor analysis found that the history diabetes and peritonsillar peripheral space infections,age,acute phase of smoking and drinking,fatigue,nutritional status,class of antibiotic use,tonsillitis type,educational level and the long first diagnosis time were risk factors for peritonsillar peripheral space infections,and the differences were significant (x2 =39.851,8.818,89.041,87.266,30.417,21.499,13.472,64.548,12.223,62.871,70.749,all P ＜ 0.05).Logistic regression analysis found that acute phase of smoking and drinking,age,fatigue,tonsillitis type and the long first diagnosis time were independent risk factors for peritonsillar peripheral space infections patients with acute tonsillitis (OR =2.873,5.311,5.876,0.290,2.244,2.369,all P ＜ 0.05).Nutritional status and educational level had beneficial effect to peritonsillar infections event (OR =0.290,0.461,all P ＜ 0.05).Conclusion Acute tonsillitis is easy to cause peritonsillar peripheral space infection,it should be paid much attention and strengthened prevention.The pathogens causing peritonsillar peripheral space infections in acute tonsillitis is still mainly Staphylococcus aureus.After the analysis of related factors,the certain measures should be taken to reduce the complications rate of peritonsillar peripheral space infections in acute tonsillitis.

Objective To investigate the diagnostic value of the ratio of % Micro to % Hypo in the diagnosis of three kinds of common thalassemia and iron‐deficiency anemia (IDA ) .Methods Forty‐nine cases of IDA ,24 cases of mildα‐thalassemia ,24 cases of mildβ‐thalassemia ,24 cases of silent α‐thalassemia and 120 individuals undergoing healthy physical examination were selected as the research subjects and divided into 6 groups:normal group ,IDA group ,mildα‐thalassemia group ,mildβ‐thalassemia group ,silentα‐thalassemia and mild thalassemia group(in duding mild α‐thalassemia group and mild β‐thalassemia group) .The % Micro and %Hypo were deteced in each group and their ratio was calculated .The results were performed the analysis and comparison .Results The % Micro/% Hypo ratio had statistical difference between the mild thalassemia group and IDA group ,between the mild thalasse‐mia and IDA group with the normal group(P<0 .01) .The% Micro/% Hypo ratio had no statistical difference between the silent α‐thalassemia group and normal group ,and between the mild α‐thalassemia group and mildβ‐thalassemia group (P>0 .05) .With the% Micro/% Hypo ratio of 0 .9 as the discriminant value to diagnose mild thalassemia and IDA ,its sensitivity ,specificity and accuracy for diagnosing mild thalassemia were 91 .67% ,91 .89% and 91 .72% respectively ,the sensitivity ,specificity and accuracy in diagno‐sing IDA were 91 .94% ,91 .25% and 91 .18% respectively .Conclusion The ratio of % Micro/% Hypo has good differential diagno‐sis and assisted diagnosis screening value ,but has little value for diagnosing silent α‐thalassemia .

Family Health ; Humans ; Paraganglioma ; diagnosis

BACKGROUND:The effect of dimethyl sulfoxide cryoprotectants has been got a lot of verification in the low-temperature medical applications. But there is no literature addressing microdialysis detection of dimethyl sulfoxide cryoprotectants. OBJECTIVE:To investigate the microdialysis relative recovery of different concentrations of dimethyl sulfoxide cryoprotectants used for limb reattachment. METHODS:In vitro linear probe relative recovery of different concentrations of dimethyl sulfoxide (2%, 5%, 8%) was detected by retrodialysis gain and loss method. The correction in vivo experiment was done to estimate dimethyl sulfoxide relative recovery in rabbit amputated limbs. RESULTS AND CONCLUSION:The relative recoveries of different concentrations of dimethyl sulfoxide (2%, 5%, 8%) were (49.49±3.56)%, (46.30±1.48)%, (52.66±2.54)%using retrodialysis gain method and (50.99±6.89)%, (43.86±1.35)%, (50.67±0.75)%using retrodialysis loss method. The average recoveries were (49.48±3.18)%and (48.51±4.03)%, respectively. There was no difference in the relative recovery of dimethyl sulfoxide detected using two methods. The change of dimethyl sulfoxide concentration could not influence the retrodialysis gain and loss method calibration results. The recovery was (15.45±4.8)%in vivo. These findings indicate that the microdialysis technology is suitable for dimethyl sulfoxide sampling in vivo that has no obvious influence on the relative recovery.