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Nevin Manimala Statistics

Association between neutrophil-to-lymphocyte ratio and outcomes in hospitalized patients with left ventricular thrombus

Coron Artery Dis. 2024 Apr 1. doi: 10.1097/MCA.0000000000001363. Online ahead of print.

ABSTRACT

BACKGROUND: Left ventricular thrombus (LVT) is a severe cardiovascular complication occurring in approximately 10% of patients with acute anterior ST-segment elevation myocardial infarction. This study aimed to evaluate the association between neutrophil-to-lymphocyte ratio (NLR) and in-hospital major adverse cardiovascular and cerebrovascular events (MACCE) in patients with LVT.

MATERIAL AND METHODS: This multicenter retrospective study was conducted between January 2000 and June 2022 in hospitalized patients with LVT. The outcome included in-hospital MACCE. The association between NLR and in-hospital MACCE was measured by odds ratios (ORs). The restricted cubic spline model was used for dose-response analysis.

RESULTS: A total of 197 LVT patients from four centers were included for analysis in this study. MACCE occurred in 13.7% (27/197) of the patients. After adjusting for estimated glomerular filtration rate (eGFR), D-dimer, and age, the OR for MACCE comparing first to the third tertile of NLR was 13.93 [95% confidence interval: 2.37-81.77, P = 0.004, P-trend = 0.008]. When further adjusting for etiology and heart failure with reduced ejection fraction (HFrEF), the association remained statistically significant. Spline regression models showed an increasing trend in the incidence of MACCEs with NLR both in crude and adjusted models. Subgroup analyses showed that a high NLR may be correlated with poorer outcomes for LVT patients older than 65 years, or with hypertension, dyslipidemia, low ejection fraction, liver, and renal dysfunctions.

CONCLUSION: In conclusion, these findings suggested that higher NLR may be associated with an increased risk of in-hospital MACCE in patients with LVT.

PMID:38563191 | DOI:10.1097/MCA.0000000000001363

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Nevin Manimala Statistics

Analysis of inducement of benign paroxysmal positional vertigo

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2024 Apr;38(4):331-333. doi: 10.13201/j.issn.2096-7993.2024.04.013.

ABSTRACT

Objective:To analyze the related factors that may affect the onset of benign paroxysmal positional vertigo(BPPV). Methods:Fifty BPPV patients treated in Department of Otolaryngology Head and Neck Surgery, Shanxi Provincial People’s Hospital from May to September 2023 were selected as the case group, and 50 healthy adults were selected as the control group. Relevant information was collected by means of questionnaire survey and medical history inquiry. The two groups were compared in terms of sleep time, night sleep duration, wake times, underlying diseases(hypertension, diabetes, coronary heart disease, etc.) and negative emotional impact. Results:The proportion of male and female in the case group was 16% and 84%, and that in the control group was 20% and 80%. The mean age of the case group was(54.66±13.39) years old, and the mean age of the control group was(54.42±12.55) years old, ranging from 27 to 80 years old. The sleeping time of the case group was significantly later than that of the healthy group, and the difference was statistically significant(P<0.05). The night sleep duration of the case group was shorter than that of the healthy group, the difference was statistically significant(P<0.05). There was no significant difference in awakening times between the case group and the healthy group(P>0.05). There were more patients in the case group with underlying diseases(54%) and affected by negative emotions(70%) than in the healthy group, and the difference was statistically significant(P<0.05). Conclusion:Late sleep time, short sleep duration at night, accompanied by underlying diseases and negative emotions can affect the onset of BPPV.

PMID:38563178 | DOI:10.13201/j.issn.2096-7993.2024.04.013

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Evaluation of the feasibility of endoscopic tympanoplasty in two-person three-hand operation

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2024 Apr;38(4):316-320;324. doi: 10.13201/j.issn.2096-7993.2024.04.010.

ABSTRACT

Objective:To study the difference of postoperative efficacy between two-person three-hand ear endoscopy and microscopic tympanoplasty in patients with chronic suppurative otitis media, and to explore the advantages and disadvantages of two-person three-hand ear endoscopy. Methods:A retrospective study was conducted on 100 patients who underwent tympanoplasty in the Department of Otolaryngology and Head and Neck Surgery of Hunan People’s Hospital from April 2019 to March 2023, and they were divided into 2 groups with 50 cases each according to random number table method. Among them, 50 cases underwent endoscopic tympanoplasty in two-person three-hand(group A) and 50 cases underwent routine microscopic tympanoplasty(group B). The operation and postoperative conditions of the two groups were followed up. Results:In group A, the mean operation time was(65.78±18.21) min, the mean intraoperative blood loss was(12.94±4.46) mL, the postoperative pain score was(1.82±0.60) points, and the mean postoperative hospital stay was(2.76±0.72) d. The mean operation time of group B was(89.45±20.38) min, the mean intraoperative blood loss was(22.78±5.74) mL, the postoperative pain score was(2.98±0.85) points, and the mean postoperative hospital stay was(3.82±0.75) d, which with statistical significance between the two groups(P<0.05). Hearing in both groups was significantly improved 6 months after surgery, and the difference was statistically significant before and after surgery(P<0.05), but there was no significant difference between the two groups before surgery and 6 months after surgery(P>0.05). There were 2 cases in group A(4%) and 1 case in group B(2%) complicated with tympanic cord injury during operation, and the difference was not statistically significant(P>0.05). There were 47 cases of A group(94%) of one-time healing of tympanic membrane after operation, 48 cases(96%) of group B, and the difference was not statistically significant(P>0.05). Conclusion:There is no significant difference in cure rate and hearing improvement between two-person three-hand ear endoscopic tympanoplasty and conventional microscope surgery, and the operation time is significantly shortened, the amount of blood loss is less, and the postoperative recovery is faster. It has the advantages of clear operating field, two-person three-hand operation, minimally invasive, and can reach the range of middle ear tympanic sinus and mastoid apex, and the surgical complications are seldom, which is worth promoting.

PMID:38563175 | DOI:10.13201/j.issn.2096-7993.2024.04.010

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Nevin Manimala Statistics

The auxiliary diagnostic value of ECP and MPO expression in nasal secretions in different types of rhinitis

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2024 Apr;38(4):292-297. doi: 10.13201/j.issn.2096-7993.2024.04.006.

ABSTRACT

Objective:To evaluate the expression of eosinophil cationic protein and myeloperoxidase in nasal secretions in different types of rhinitis, and to explore their values in the differential diagnosis of different types of rhinitis. Methods:Six hundred and eighty-four subjects were selected, including 62 subjects in the acute rhinitis group, 378 subjects in the allergic rhinitis group, 94 subjects in the vasomotor rhinitis group, 70 subjects in the eosinophilic non-allergic rhinitis group, and 80 subjects in the control group. Nasal secretion samples were collected from the five groups, and the percentages of inflammatory cells were counted by Rachel’s staining, and the expression of ECP/MPO was detected by colloidal gold assay. The correlation between the clinical diagnosis, the inflammatory cells in the nasal secretions and the expression of ECP/MPO was analyzed. Results:Nasal cytological smears showed that compared with the control group, the percentage of eosinophils in the AR and NARES groups were significantly higher (P<0.05), while the percentage of neutrophils was not different (P>0.05); the percentage of neutrophils was significantly higher in the acute rhinitis group compared with the control group (P<0.05), while the percentage of eosinophils was not statistically different (P>0.05); in vasomotor rhinitis group, the eosinophils and neutrophils were not statistically different compared with the control group(P> 0.05). The colloidal gold results showed that there were differences in the expression of ECP/MPO in different types of rhinitis, among which 49 cases (79.0%) in the acute rhinitis group expressed ECP+/MPO+; 267 cases (70.6%) in the AR group and 56 cases (75.7%) in the NARES group expressed ECP+/MPO-; 80 cases (85.1%) in the vasomotor rhinitis group and 69 cases (86.3%) in the control group expressed ECP-/MPO-. Conclusion:The differences in ECP and MPO expression between different types of rhinitis have certain reference value for the differential diagnosis of different types of rhinitis and the selection of treatment programs.

PMID:38563171 | DOI:10.13201/j.issn.2096-7993.2024.04.006

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Nevin Manimala Statistics

The research of the contralateral ear hearing thresholds and the hearing prognosis in unilateral Meniere’s disease

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2024 Apr;38(4):278-283. doi: 10.13201/j.issn.2096-7993.2024.04.003.

ABSTRACT

Objective:This study analyzed the pure tone audiometry results of the affected ear and the contralateral ear of unilateral Meniere’s disease to investigate the correlation of the hearing threshold of the contralateral ear and the hearing prognosis of unilateral Meniere’s disease. Methods:In this study, the follow-up data of 135 patients with unilateral Meniere’s disease in Beijing Tongren Hospital were used to analyze the pure tone audiometry results of the affected and contralateral ears at the first visit and 1 year later. Results:①At the first visit, there was no statistically significant difference between the mean hearing thresholds of the affected ear in the normal hearing group and the high-frequency hearing loss group of the contralateral ear(P>0.05). ②The range of improvement of hearing thresholds in the affected ear was greater in the contralateral ear normal hearing group than in the contralateral ear high-frequency hearing loss group. In the normal hearing group of the contralateral ear, the hearing thresholds of the affected ear at 0.25 kHz(P<0.01), 0.50 kHz(P<0.01), 1.00 kHz(P<0.01), and 2.00 kHz(P<0.05) were significantly improved; and in the high-frequency hearing loss group of the contralateral ear, the hearing thresholds at 0.25 kHz(P<0.01) hearing thresholds improved significantly, and there was no significant difference between the rest of the frequencies before and after treatment(P>0.05). A consistent pattern was observed in both higher and lower age groups. ③After 1 year of follow-up, the low and mid-frequency hearing of the affected ear improved. 0.25 kHz(P<0.01), 0.50 kHz(P<0.01), 1.00 kHz(P<0.01) hearing thresholds improved significantly; 8.00 kHz hearing thresholds decreased slightly(P<0.05). Conclusion:After standardized treatment, the results of 1-year follow-up suggested that the low-frequency hearing of MD patients could be improved, but the high-frequency hearing was slightly decreased. The hearing prognosis of the affected ear with normal hearing threshold of the contralateral ear may be better.

PMID:38563168 | DOI:10.13201/j.issn.2096-7993.2024.04.003

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Nevin Manimala Statistics

A study of mismatched negative in normal hearing patients of different ages

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2024 Apr;38(4):273-277. doi: 10.13201/j.issn.2096-7993.2024.04.002.

ABSTRACT

Objective:To study the characteristics of Mismatch negativity(MMN) in normal hearing patients of different ages, and to compare the MMN of normal hearing subjects at different ages to explore the differences in MMN between different ages. Methods:MMN test was performed on both ears using the classic Oddball mode. A frequency of 1 000 Hz(standard stimuli) and 2 000 Hz(deviant stimuli) was used to evoked the MMN. According to different age groups: the juvenile group(7-17 years old), the youth group(18-44 years old), the middle-aged group(45-59 years old), and the elderly group(60-75 years old), with 25 cases in each group. The MMN characteristics of normal hearing subjects in different age groups were analyzed statistically and the differences between groups were compared. All subjects underwent pure tone threshold test, tympanic reactance test and ABR test before MMN test. Results:MMN waveform could be elicited from both ears of 100 subjects. Among them, the average latency of the juvenile group was(159.70±20.34) ms while the average amplitude was(4.34±2.26) μV, For the youth group, the average latency was(166.01±28.67) ms and the average amplitude was(3.70±2.28) μV. Then in the middle-aged group, the average latency was(175.16±37.24) ms, meanwhile, the average amplitude was(2.69±0.84) μV. Finally, the elderly group has an average latency of(178.03±14.37) ms and an average amplitude of(2.11±0.70) μV. Therefore, there was no statistical difference in latency and amplitude between all groups(P>0.05), and there was no statistical difference in latency and amplitude between left and right ears among all subjects as a whole(P>0.05). However, when the left and right ears of all groups were compared, it was found that the latency between the left and right ears of the Juvenile group had statistical significance(P<0.05), and the amplitude difference was not statistically significant(P>0.05), while the latency and amplitude differences between the left and right ears of other groups had no statistical significance(P>0.05). There were also no significant differences in latency and amplitude between men and women(P>0.05). Conclusion:There was no statistically significant difference in the latency and amplitude of mismatched negative among normal hearing subjects of different ages, and no statistically significant difference in the MMN latency and amplitude between the left and right ears of subjects and between men and women. Therefore, the study inferred that the auditory cerebral cortex of subjects aged 7-75 years old maintained a stable state for a long time after maturity, and the latency and amplitude of mismatched negative waves were relatively stable. It is not affected by age, gender and ear side, and can stably reflect the auditory cortex function of the subjects. It has broad application prospects in clinical practice, and provides a reliable detection means for future research on the changes of the auditory cerebral cortex of patients, which is worthy of our further research and clinical promotion.

PMID:38563167 | DOI:10.13201/j.issn.2096-7993.2024.04.002

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Nevin Manimala Statistics

Social participation, loneliness, and physical inactivity over time: evidence from SHARE

Int Psychogeriatr. 2024 Apr 2:1-9. doi: 10.1017/S1041610224000504. Online ahead of print.

ABSTRACT

OBJECTIVES: We aimed to explore the reciprocal effects of social participation, loneliness, and physical inactivity over a period of 6 years in a representative sample of European adults over 50 years old.

DESIGN: A longitudinal study with a six-year follow-up period was conducted.

SETTING: Four waves of the Survey of Health, Ageing and Retirement in Europe project were used.

PARTICIPANTS: This study includes 64,887 participants from Europe and Israel, who were aged 50 or older at the first time.

MEASUREMENTS: The relationship between participation in social activities, loneliness and physical inactivity was analyzed, controlling for age, gender, and disability. A series of cross-lagged panel models (CLPMs) were applied to analyze the relationships among these variables.

RESULTS: A CLPM with equal autoregressive cross-lagged effects across waves was the best fit to the data (χ2 = 7137.8, CFI = .972, RMSEA = .049, SRMR = .036). The autoregressive effects for the three variables showed high stability across waves, and all the cross-lagged effects in the model were statistically significant. Social activity and physical inactivity maintained a strong negative cross-lagged effect, while their cross-lagged effects on loneliness were comparatively smaller. Social activity had a positive cross-lagged effect on loneliness, while physical inactivity had a negative cross-lagged effect on loneliness.

CONCLUSIONS: These findings highlight the importance of promoting physical activity and social participation and addressing loneliness through targeted interventions in older adults.

PMID:38563158 | DOI:10.1017/S1041610224000504

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Nevin Manimala Statistics

The potential influence of genome-wide adaptive divergence on conservation translocation outcome in an isolated greater sage-grouse population

Conserv Biol. 2024 Apr 2:e14254. doi: 10.1111/cobi.14254. Online ahead of print.

ABSTRACT

Conservation translocations are an important conservation tool commonly employed to augment declining or reestablish extirpated populations. One goal of augmentation is to increase genetic diversity and reduce the risk of inbreeding depression (i.e., genetic rescue). However, introducing individuals from significantly diverged populations risks disrupting coadapted traits and reducing local fitness (i.e., outbreeding depression). Genetic data are increasingly more accessible for wildlife species and can provide unique insight regarding the presence and retention of introduced genetic variation from augmentation as an indicator of effectiveness and adaptive similarity as an indicator of source and recipient population suitability. We used 2 genetic data sets to evaluate augmentation of isolated populations of greater sage-grouse (Centrocercus urophasianus) in the northwestern region of the species range (Washington, USA) and to retrospectively evaluate adaptive divergence among source and recipient populations. We developed 2 statistical models for microsatellite data to evaluate augmentation outcomes. We used one model to predict genetic diversity after augmentation and compared these predictions with observations of genetic change. We used the second model to quantify the amount of observed reproduction attributed to transplants (proof of population integration). We also characterized genome-wide adaptive divergence among source and recipient populations. Observed genetic diversity (HO = 0.65) was higher in the recipient population than predicted had no augmentation occurred (HO = 0.58) but less than what was predicted by our model (HO = 0.75). The amount of shared genetic variation between the 2 geographically isolated resident populations increased, which is evidence of periodic gene flow previously assumed to be rare. Among candidate adaptive genes associated with elevated fixation index (FST) (143 genes) or local environmental variables (97 and 157 genes for each genotype-environment association method, respectively), we found clusters of genes with related functions that may influence the ability of transplants to use local resources and navigate unfamiliar environments and their reproductive potential, all possible reasons for low genetic retention from augmentation.

PMID:38563102 | DOI:10.1111/cobi.14254

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Exploitation of Aureobasidium pullulans NRRL Y-2311-1 xylanase in mulberry and rice flours-based gluten-free cookie formulation: Effects on dough properties and cookie characteristics

J Food Sci. 2024 Apr 2. doi: 10.1111/1750-3841.17054. Online ahead of print.

ABSTRACT

Xylanases are mainly utilized in bakery industry for the hydrolysis of dietary fiber-based fractions. Their applications in gluten-free products have not been considered before. In the present study, the xylanase produced by Aureobasidium pullulans NRRL Y-2311-1 was utilized in a mulberry and rice flours-based gluten-free cookie formulation for the first time. Effects of various xylanase concentrations on gluten-free dough rheology and cookie characteristics were elucidated. Only rice flour-based cookie and only wheat flour-based cookie formulations were also prepared as comparison. Incorporation of xylanase into all cookie recipes resulted in softer cookie doughs with lower absolute stickiness. The hardness and absolute stickiness of the cookie doughs prepared by the mixture of mulberry and rice flours decreased by the addition of the enzyme into the formulation in a concentration-dependent manner. Enzyme concentrations above 100 U/100 g flour did not provide statistically significant further changes on gluten-free cookie doughs. Incorporation of xylanase into the cookie recipes resulted in increased baking loss and spread ratio in an enzyme concentration-dependent manner for all cookie types. Hardness values of both types of gluten-free cookies decreased by xylanase incorporation. Different effects on fracturability were observed depending on the cookie type and enzyme concentration. Enzyme concentration of 100 U/100 g flour provided mulberry and rice flours-based cookies with a more flexible and softer structure. No significant effects on color parameters of cookies were observed by xylanase incorporation.

PMID:38563094 | DOI:10.1111/1750-3841.17054

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Factors associated with increased radiation exposure in the fixation of proximal femoral fractures

Ann R Coll Surg Engl. 2024 Apr 2. doi: 10.1308/rcsann.2023.0092. Online ahead of print.

ABSTRACT

INTRODUCTION: When using radiation intraoperatively, a surgeon should aim to keep the radiation dose as low as is reasonably achievable to obtain the therapeutic goal. We aimed to investigate factors associated with increased radiation exposure in fixation of proximal femur fractures.

METHODS: We assessed 369 neck of femur fractures over a 1-year period in a district general hospital. All hip fracture subtypes that had undergone surgical fixation were included. We assessed the relationship between type of fracture, implants used and surgeon level of experience with the dose-area product (DAP; cGy/cm2) and screening time (dS). We also looked at the quality of reduction and fixation and its effect on the radiation exposure.

RESULTS: A total of 184 patients were included in our analysis; 185 patients who were treated with hip arthroplasty were excluded. There was a significant association between higher DAP and fracture subtype (p = 0.001), fracture complexity (p < 0.001), if an additional implant was used (p = 0.001), if fixation was satisfactory (p = 0.002) and operative time (p < 0.001). DAP was higher with a proximal femoral nail than with a dynamic hip screw, especially when a long nail was used. There was some evidence of an association between the surgeon’s level of experience and DAP exposure, although this was not statistically significant (p = 0.069).

CONCLUSIONS: Increased radiation in proximal femur fractures is seen in the fixation of complex fractures, some subtypes, with certain types of implants used and if an additional implant was required. Surgeon seniority did not result in less radiation exposure, which is in contrast to other published studies.

PMID:38563063 | DOI:10.1308/rcsann.2023.0092