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Nevin Manimala Statistics

Does the mesh type influence the outcomes and costs of robotic inguinal hernia repair?

J Robot Surg. 2022 Nov 23. doi: 10.1007/s11701-022-01494-7. Online ahead of print.

ABSTRACT

The aim of this study was to compare the clinical outcomes and hospital costs associated with two different meshes in robotic transabdominal preperitoneal inguinal hernia repair (IHR). Patients who underwent IHR were assigned to either the polyester self-gripping (PSG) or the polypropylene (PP) group depending on the mesh used. A propensity score matching analysis was performed to obtain balanced populations. Postoperative variables included complications such as surgical site events and recurrences. Hospital costs included all possible expenses generated by the surgery during the hospitalization period. From a database of IHR performed between February 2012 and July 2022, 131 PSG patients were matched to 131 PP repairs. Median operative time was shorter in the PSG group [55 (40-78) vs. 80 (60-116) minutes, p < 0.001]. No intraoperative complications were recorded. Patients who received the PSG mesh experience reduced immediate postoperative pain compared to the PP group. Average follow-up time was 35.2 months in the PSG group vs. 12.5 months in the PP group (p < 0.001). Median Comprehensive Complication Index was comparable in both groups (p = 0.489), with no surgical site infections logged. No cases of chronic pain were noted. Only two recurrences were recorded in the cohort, both of them in the PSG repairs. Hospital costs were USD $232 higher in the PP group but did not statistically differ (p = 0.523). There were no differences between the polyester self-gripping and the polypropylene mesh in terms of postoperative complications, clinical outcomes and hospital costs. Surgeons may opt for either meshes depending on their preferences and familiarity with each of the products.

PMID:36422791 | DOI:10.1007/s11701-022-01494-7

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Nevin Manimala Statistics

Does location of the households’ matters? Identifying the households’ willingness to pay and preference heterogeneity in advancement of vulnerable ecosystem services: An approach of choice experiment

Environ Sci Pollut Res Int. 2022 Nov 23. doi: 10.1007/s11356-022-24299-5. Online ahead of print.

ABSTRACT

The present research underlines the need to expand far outside bundling or hierarchical providing strategy that often focuses on a specific habitat or ecosystem and creates a location-based strategy that considers how dependency in other parts of the region with ecosystem functions and processes leads to complements and resources’ trade-offs. Thus, for assessment of spatial heterogeneity based on willingness to pay (WTP) for upgrading environmental attributes across Heihe River Basin (HRB), a choice experiment survey was carried out in the entire river basin. The HRB is one of the big inland river in the Northwestern region of China and is selected on basis of its geomorphological and geographical significance. A sum of 1679 individuals were interviewed through choice experiment technique from whole river basin consisting of five main cities and 33 adjoining rural areas. The Random Parameter logit model, Krinsky-Robb technique as well as delta method were applied for the evaluation of spatial heterogeneity and estimation of individual specific WTP, respectively. Spatial heterogeneity is verified among sampled individuals’ preferences about upgradation of environmental attributes, such as, observed preferences of individuals’ and their varying corresponding WTP amounts for per unit’s upgradation in agriculture product quality, greenhouse gases reduction, farmland landscape, and biodiversity, which reflects heterogeneous tastes and preferences of the selected individuals. In addition, the assessed outcomes for identifying the impacts of distance decay through random parameter logit model depicted the vital role of distance influence on respondents’ WTP for restoring the degraded environmental attributes, such that among 3 ad hoc distance bands, WTP of those sampled individuals who are in proximity of ≤ 10 km to HRB is more than the rest of the individuals, i.e., individuals living in the range of ≤ 20 km and > 20 km. For instance, WTP for agriculture product quality is 119.147 CNY/year in ≤ 10 km and is higher than the remainders.

PMID:36422782 | DOI:10.1007/s11356-022-24299-5

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Nevin Manimala Statistics

Telemedicine approach for patient follow-up after total knee and reverse total shoulder arthroplasty: a pilot study

Int J Comput Assist Radiol Surg. 2022 Nov 23. doi: 10.1007/s11548-022-02784-z. Online ahead of print.

ABSTRACT

PURPOSE: The study aimed to demonstrate the reduction in postoperative follow-up visit time for patients receiving total knee arthroplasty (TKA) or reverse total shoulder arthroplasty (RTSA) by implementing a novel asynchronous telemedicine system compared to face-to-face visits. The range of motion interobserver agreement and patient satisfaction were evaluated in the telemedicine group.

METHODS: A randomized controlled trial was conducted with a total of 28 patients with a mean age of 71 years (range 13.3). Patients were distributed into two study groups, TKA (n = 14) and RTSA (n = 14), and each group was randomly allocated into a face-to-face or virtual follow-up visit group. For the virtual group, software was designed including patient-specific model items (X-ray, range of motion and functional scores) for each arthroplasty. Functional assessment was conducted using the International Knee Documentation Committee (IKDC) score for TKA and American Shoulder and Elbow score (ASES) and Simple Shoulder Test (SST) for RTSA. The range of motion interobserver concordance was conducted in the virtual follow-up groups via an intraclass correlation coefficient. Finally, a satisfaction survey was performed in the virtual follow-up groups. Mann-Whitney U test was used for statistical analysis.

RESULTS: Mean time differences between face-to-face and virtual follow-ups were 502.5 s (95% CI 387.8-617.1; p < 0.002) in the RTSA group and 710 s (95% CI 597.91-822; p < 0. 002) in the TKA group. The range of motion interobserver concordance in the virtual group was 0.974 for TKA and 0.804 for RTSA. Finally, virtual follow-up satisfaction using the telematic method was 8.9 out of 10.

CONCLUSION: The results of this study showed that a virtual follow-up using asynchronous telemedicine systems could reduce visit times, allow a correct articular range of motion evaluation and maintain satisfaction perception for patients. Asynchronous telemedicine could be an efficient method to conduct postoperative follow-up after knee and shoulder arthroplasty.

PMID:36422767 | DOI:10.1007/s11548-022-02784-z

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MRI remains highly accurate in the diagnosis of appendicitis in pregnancy when read by radiologists of mixed specialty training and experience

Emerg Radiol. 2022 Nov 23. doi: 10.1007/s10140-022-02102-9. Online ahead of print.

ABSTRACT

PURPOSE: To audit the accuracy of magnetic resonance imaging (MRI) abdominal studies performed in the diagnosis of appendicitis in pregnant patients when read by radiologists of mixed experience.

METHODS: MRI reports from 45 pregnant women presenting to our emergency department for the investigation of appendicitis between 2009 and 2020 were retrospectively reviewed. Where available, these reports were correlated with surgical and pathology reports as well as follow-up clinical information. Following a review of literature, accuracy targets were set. Statistical analyses including sensitivity, specificity, positive, and negative predictive values were calculated.

RESULTS: A total of 18 radiology consultants read 45 MRI abdominal studies in the assessment of appendicitis during pregnancy with 62% (n = 28) of these read by specialist radiologists and the remainder by general radiologists. This yielded an accuracy in diagnosis of 99.8%, sensitivity of 80% (95% CI: 49-94.3%), and specificity of 100% (95% CI: 90-100%). The calculated negative predictive value was 94.6% (95% CI: 82.3-98.5%), and positive predictive value was 100% (95% CI: 90-100%). The appendix was not identified in 19 patients (42%). A statistically significant relationship between the presence of right iliac fossa stranding of the fat OR free fluid was associated with appendicitis (p = 0.01). Alternate diagnoses were identified in 8% (n = 4) of cases.

CONCLUSION: MRI is a highly accurate imaging modality for the assessment of appendicitis in pregnancy. Even with variable reader MRI experience, MRI demonstrates an accuracy of 99.8% and a positive predictive value for acute appendicitis of 100%. Double reading and the possible inclusion of DWI may help further improve accuracy and minimise false-negative rates.

PMID:36422751 | DOI:10.1007/s10140-022-02102-9

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Nevin Manimala Statistics

The HIF1α polymorphism rs2301104 is associated with obesity and obesity-related cytokines in Han Chinese population

Acta Diabetol. 2022 Nov 23. doi: 10.1007/s00592-022-02008-5. Online ahead of print.

ABSTRACT

AIMS: To evaluate the association between genetic polymorphisms of HIF1α and obesity and obesity-related cytokines in the Han Chinese population.

METHODS: The study consisted of 160 subjects with obesity and 166 age- and gender-matched healthy controls. We genotyped three tag single nucleotide polymorphisms (SNPs) of HIF1α by using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS)-based genotyping technology. Plasma cytokine concentrations were determined on the Luminex platform. The genetic associations were analysed statistically.

RESULTS: Obese subjects had significant obesity-related metabolic abnormalities, including hyperglycaemia, insulin resistance, and abnormalities in blood lipids, liver enzymes, and uric acid levels. SNP analysis of HIF1α revealed that the allele and genotype frequencies of rs2301104 were significantly associated with obesity. Our results suggest that the minor allele C of rs2301104 might be a protective mutation of obesity, and CC/CG genotypes of rs2301104 could be protective genotype of obesity. We also found that subjects with CC/CG genotypes of rs2301104 had significantly lower levels of IL-6, TNF-α, IL-1β, IL-8, and IL-10 than subjects with GG genotypes.

CONCLUSIONS: This is the first study to report an association between HIF1α polymorphisms and obesity and obesity-related cytokines in a Han Chinese population. These results require replication in larger populations but suggest that HIF1α may play an important role in obesity development.

PMID:36422747 | DOI:10.1007/s00592-022-02008-5

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The comparison between contrast-enhanced ultrasound and contrast-enhanced magnetic resonance imaging in diagnosing bladder urothelial carcinoma

Int Urol Nephrol. 2022 Nov 24. doi: 10.1007/s11255-022-03410-2. Online ahead of print.

ABSTRACT

PURPOSE: The surgical treatment of bladder urothelial carcinoma depends on whether the tumor has invaded the bladder muscular layer. Normal ultrasound and contrast-enhanced magnetic resonance imaging (contrast-enhanced MRI) are widely used in patients bear bladder tumors; the latter is also widely used in estimating the muscularis invasion of bladder cancer (BC). However, contrast-enhanced ultrasound (CEUS) is rarely used in this aspect. As the gold standard in diagnosing muscularis invasion remains being pathological examination, this study was set to find out whether there are differences between CEUS and contrast-enhanced MRI in diagnosing bladder malignant tumors and in diagnosing the muscularis invasion of the bladder urothelial carcinoma under the guide of the pathological results.

METHODS: 160 patients from Yongchuan Hospital of Chongqing Medical University and The Second Affiliated Hospital of Chongqing Medical University were recruited from July 1st, 2021, to June 30th, 2022. Patients are arranged to undergo CEUS, contrast-enhanced MRI and then take a surgery. After surgery, we compare the results of CEUS, MRI and the pathological results, using software to run the statistical examinations.

RESULTS: The accuracies of CEUS and contrast-enhanced MRI in diagnosing malignant bladder tumors were 85.90 and 84.62%, and they had no differences (P > 0.05). While the accuracies of CEUS and contrast-enhanced MRI in diagnosing the muscularis invasion were 84.62 and 76.92%, in which CEUS had a better sensitivity (P < 0.05).

CONCLUSIONS: We found that CEUS and contrast-enhanced MRI had no differences in diagnosing the different pathological types (benign or malignant) of BC, but CEUS holds a better sensitivity in diagnosing muscularis invasions of bladder urothelial carcinoma than the contrast-enhanced MRI.

PMID:36422743 | DOI:10.1007/s11255-022-03410-2

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Effect of temporary cements and their removal methods on the bond strength of indirect restoration: a systematic review and meta-analysis

Clin Oral Investig. 2022 Nov 24. doi: 10.1007/s00784-022-04790-6. Online ahead of print.

ABSTRACT

OBJECTIVES: For a conventional indirect restoration, temporary cementation inevitably contaminated collapsed dentin collagen. The purpose of this review was to evaluate the optimal strategy for minimizing its negative effects.

MATERIAL AND METHODS: Databases such as PubMed, Web of Science, EMBASE, and the Cochrane Library were searched for in vitro studies, involving the influence of immediate dentin sealing (IDS), different temporary cements, and their removal strategies on dentin bond strength. The meta-analysis used the inverse variance method with effect method of the standardized mean difference and statistical significance at p ≤ 0.05. The I2 value and the Q-test were used to assess the heterogeneity.

RESULTS: A total of 14 in vitro trials were subjected to the meta-analysis. Within the study’s limitations, we assumed that IDS eliminated the negative effects of temporary bonding, achieving the comparable immediate bond strength with the control (p = 0.46). In contrast, under delayed dentin sealing (DDS), temporary cementation statistically decreased bond strength (p = 0.002). Compared with resin-based and non-eugenol zinc oxide cements, polycarboxylate and calcium hydroxide cements performed better on bond strength with no statistical difference from the control group (p > 0.05). Among the removal methods of temporary cements, the Al2O3 abrasion restored the decreased bond strength (p = 0.07) and performed better than hand instruments alone (p = 0.04), while pumice removal slightly reduced the bond strength in contrast with the control group (p = 0.05, 95% CI = – 1.62 to 0).

CONCLUSIONS: The choices of IDS, polycarboxylate and calcium hydroxide temporary cements, Al2O3 abrasion removal method were feasible and efficient to enhance the bond strength.

CLINICAL RELEVANCE: It is worthwhile applying IDS technique, polycarboxylate and calcium hydroxide temporary cements during indirect restoration. The Al2O3 abrasion of cleaning dentin can minimize the negative effects of temporary cement.

PMID:36422719 | DOI:10.1007/s00784-022-04790-6

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Rapid detection and identification of fungi in grain crops using colloidal Au nanoparticles based on surface-enhanced Raman scattering and multivariate statistical analysis

World J Microbiol Biotechnol. 2022 Nov 24;39(1):26. doi: 10.1007/s11274-022-03467-2.

ABSTRACT

Grain crops are easily contaminated by fungi due to the existence of various microorganisms in the storage process, especially in humid and warm storage conditions. Compared with conventional methods, surface-enhanced Raman scattering (SERS) has paved the way for the detection of fungi in grain crops as it is a rapid, nondestructive, and sensitive analytical method. In this work, Aspergillus niger, Saccharomyces cerevisiae, Fusarium moniliforme and Trichoderma viride in grain crops were detected using colloidal Au nanoparticles and SERS. The results indicated that different fungi showed different Raman phenotypes, which could be easily characterized by SERS. Combined with multivariate statistical analysis, identification of a variety of fungi could be accomplished rapidly and accurately. This research can be applied for the rapid detection of fungi in the food and biomedical industries.

PMID:36422715 | DOI:10.1007/s11274-022-03467-2

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Nevin Manimala Statistics

Comparison of the incidence, treatment and prognosis of myocardial infarction in Hungary’s differently developed districts

Orv Hetil. 2022 Nov 20;163(47):1862-1871. doi: 10.1556/650.2022.32640. Print 2022 Nov 20.

ABSTRACT

INTRODUCTION: Several international studies have already confirmed the importance of the socioeconomic status of acute myocardial infarction patients in terms of patient care and prognosis. To our knowledge, a nationwide examination of this kind has not yet taken place in Hungary. The investigation of this problem field was made possible by the fact that from January 1, 2014, all healthcare providers must record the data of patients treated with a diagnosis of acute myocardial infarction in the database of the Hungarian Myocardial Infarction Registry (HUMIR).

OBJECTIVE: In this study, the authors searched for an answer to whether the complex development index (CDI) in Hungary’s 174 districts and 23 capital districts influences the treatment and prognosis of acute myocardial infarction patients.

METHOD: Based on the CDI worked out by the Hungarian Central Statistical Office, the authors divided the Hungarian districts into low (CDI_L), medium (CDI_M) and high (CDI_H) CDI groups according to their values. They examined the incidence, hospital treatment and prognosis of acute myocardial infarction in these administrative-territorial units. The HUMIR included 66,253 patients treated by myocardial infarction between 2015 and 2019. Their place of residence could be identified based on the zip code and in which district it was located. In the examined population, 29,101 patients with ST-elevation (STEMI) and 37,152 without ST-elevation (NSTEMI) received treatment for acute myocardial infarction.

RESULTS: In the population over 15 years of age, the age-standardized incidence of STEMI was 68.8 per 100,000 inhabitants a year in the CDI_L group and 52.7 per 100,000 inhabitants a year in the CDI_H group. Almost the same values were found in all three CDI subgroups of NSTEMI incidence (69.5 and 67 per 10,000 inhabitants a year). The frequency of percutaneous coronary intervention in the case of STEMI was higher than in NSTEMI, but within the groups, CDI did not influence the performance of this treatment. In the case of STEMI, the rates of patients who underwent percutaneous coronaria intervention in all three CDI subgroups (CDI_L, CDI_M, CDI_H) were 83.5%, 83.7%, 83.5%, while in the case of NSTEMI they were 57.4%, 57.7%, 57.3%. The authors applied a Cox multivariate regression analysis to examine myocardial infarction mortality. The CDI did not affect the 30-day mortality rates in the case of any myocardial infarction: the hazard ratio (HR) values were 0.906 and 0.914 (p = 0.04659; p = 0.04686) in the case of STEMI, while 1.067 and 1.001 (p = 0.16520; p = 0.98933) in the case of NSTEMI. In the case of a STEMI diagnosis, the risk of the 30-364-day and the 1-year mortality in the subgroup of CDI_H was significantly lower (HR = 0.822 and 0.816) than in the subgroup of CDI_L (p = 0.00096 and p = 0.00001). In the case of NSTEMI diagnosis, the authors found a difference in the risk of beyond 1-year mortality by comparing the districts in the subgroup of CDI_L with the districts in CDI_H: in the latter case, the HR of the mortality was 0.876, which was significantly lower (p = 0.00029) than in the subgroup of CDI_L.

CONCLUSION: The CDI has independent prognostic significance in determining the late prognosis of acute myocardial infarction patients. Orv Hetil. 2022; 163(47): 1862-1871.

PMID:36422687 | DOI:10.1556/650.2022.32640

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Presence of SARS-CoV-2 on the conjunctival mucosa in patients hospitalized due to COVID-19: Pathophysiological considerations and therapeutic implications

Physiol Int. 2022 Nov 21. doi: 10.1556/2060.2022.00113. Online ahead of print.

ABSTRACT

INTRODUCTION: Coronavirus disease 2019 (COVID-19) caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) resulted in a worldwide pandemic, due to its great capacity to invade the human body. Previous studies have shown that the primary route of invasion of this virus is the human respiratory tract via the co-expression of ACE2 receptor and TMPRSS2, a serine protease on the cellular surface. Interestingly, this condition is present not only on the respiratory epithelium but on the conjunctival mucosa, as well. Thus, we hypothesized that SARS-CoV-2 is present on the conjunctival mucosa.

AIM: To prove that SARS-CoV-2 can be detected in the conjunctiva.

METHODS: Previously nasopharyngeal swab-sample based real-time polymerase chain reaction (PCR) positive COVID-19 infected patients were selected at the COVID Care Centers of Semmelweis University, Budapest, Hungary. The study was approved by the ethical committee of Semmelweis University. During their recovery, both nasopharyngeal and conjunctival swab-samples were taken and PCR method was used to detect the presence of SARS-CoV-2 RNA. Appropriate statistical analysis was performed.

RESULTS: The study population consisted of 97 patients, 49 females (50.5%) and 48 males (49.5%), with a mean age of 67.2 ± 11.9 years. During recovery, with nasopharyngeal swabs, the PCR test was positive in 55 cases (56.70%), whereas with conjunctival swabs it was positive in 8 cases (8.25%). Both tests were positive in 5 cases (5.15%). In some patients, ocular symptoms were observed as well. The rest of the patients (29 cases) had negative nasopharyngeal PCR tests during recovery.

CONCLUSIONS: Although only in few cases, the data of the present study provides a proof of concept that SARS-CoV-2 can be present on the conjunctival mucosa even in nasopharyngeal negative patients, a finding, which can have clinical importance. Also, on the basis of these findings one can hypothesize that – in addition to the respiratory tract – the conjunctiva can be an entrance route for SARS-CoV-2 to the human body. Thus, in high-risk conditions, in addition to covering the mouth and nose with mask, the protection of the eyes is also strongly recommended.

PMID:36422684 | DOI:10.1556/2060.2022.00113