bluuebunny/crossref_metadata_2025_split huggingface dataset:
Impact of COVID-19-adapted guidelines using different airway management strategies on resuscitation quality in out-of-hospital-cardiac-arrest – a randomised manikin study
Authors: Scholz Sean S. , Linder Sissy , Latka Eugen , Bartnick Tobias , Karla Daniel , Thaemel Daniel , Wolff Marlena , Sauzet Odile , Rehberg Sebastian W. , Thies Karl-Christian , Jansen Gerrit 
Published: May 2023

Abstract
Background
Although airway management for paramedics has moved away from endotracheal intubation towards extraglottic airway devices in recent years, in the context of COVID-19, endotracheal intubation has seen a revival. Endotracheal intubation has been recommended again under the assumption that it provides better protection against aerosol liberation and infection risk for care providers than extraglottic airway devices accepting an increase in no-flow time and possibly worsen patient outcomes.

Methods
In this manikin study paramedics performed advanced cardiac life support with non-shockable (Non-VF) and shockable rhythms (VF) in four settings: ERC guidelines 2021 (control), COVID-19-guidelines using videolaryngoscopic intubation (COVID-19-intubation), laryngeal mask (COVID-19-Laryngeal-Mask) or a modified laryngeal mask modified with a shower cap (COVID-19-showercap) to reduce aerosol liberation simulated by a fog machine. Primary endpoint was no-flow-time, secondary endpoints included data on airway management as well as the participants‘ subjective assessment of aerosol release using a Likert-scale (0 = no release–10 = maximum release) were collected and statistically compared. Continuous Data was presented as mean ± standard deviation. Interval-scaled Data were presented as median and Q1 and Q3.

Results
A total of 120 resuscitation scenarios were completed. Compared to control (Non-VF:11 ± 3 s, VF:12 ± 3 s) application of COVID-19-adapted guidelines lead to prolonged no-flow times in all groups (COVID-19-Intubation: Non-VF:17 ± 11 s, VF:19 ± 5 s;p ≤ 0.001; COVID-19-laryngeal-mask: VF:15 ± 5 s,p ≤ 0.01; COVID-19-showercap: VF:15 ± 3 s,p ≤ 0.01). Compared to COVID-19-Intubation, the use of the laryngeal mask and its modification with a showercap both led to a reduction of no-flow-time(COVID-19-laryngeal-mask: Non-VF:p = 0.002;VF:p ≤ 0.001; COVID-19-Showercap: Non-VF:p ≤ 0.001;VF:p = 0.002) due to a reduced duration of intubation (COVID-19-Intubation: Non-VF:40 ± 19 s;VF:33 ± 17 s; both p ≤ 0.01 vs. control, COVID-19-Laryngeal-Mask (Non-VF:15 ± 7 s;VF:13 ± 5 s;p > 0.05) and COVID-19-Shower-cap (Non-VF:15 ± 5 s;VF:17 ± 5 s;p > 0.05). The participants rated aerosol liberation lowest in COVID-19-intubation (median:0;Q1:0,Q3:2;p < 0.001vs.COVID-19-laryngeal-mask and COVID-19-showercap) compared to COVID-19-shower-cap (median:3;Q1:1,Q3:3 p < 0.001vs.COVID-19-laryngeal-mask) or COVID-19-laryngeal-mask (median:9;Q1:6,Q3:8).

Conclusions
COVID-19-adapted guidelines using videolaryngoscopic intubation lead to a prolongation of no-flow time. The use of a modified laryngeal mask with a shower cap seems to be a suitable compromise combining minimal impact on no-flowtime and reduced aerosol exposure for the involved providers.
Improving the readiness and clinical quality of antenatal care – findings from a quasi-experimental evaluation of a performance-based financing scheme in Burkina Faso
Authors: Appel Inke , Lohmann Julia , De Allegri Manuela , Koulidiati Jean-Louis , Somda Serge , Robyn Paul Jacob , Badolo Hermann , Brenner Stephan 
Published: May 2023

Abstract
Background
While maternal mortality has declined globally, it remains highest in low-income countries. High-quality antenatal care (ANC) can prevent or decrease pregnancy-related complications for mothers and newborns. The implementation of performance-based financing (PBF) schemes in Sub-Saharan Africa to improve primary healthcare provision commonly includes financial indicators linked to ANC service quality indicators. In this study, we examine changes in ANC provision produced by the introduction of a PBF scheme in rural Burkina Faso.

Methods
This study followed a quasi-experimental design with two data collection points comparing effects on ANC service quality between primary health facilities across intervention and control districts based on difference-in-differences estimates. Performance scores were defined using data on structural and process quality of care reflecting key clinical aspects of ANC provision related to screening and prevention pertaining to first and follow-up ANC visits.

Results
We found a statistically significant increase in performance scores by 10 percent-points in facilities’ readiness to provide ANC services. The clinical care provided to different ANC client groups scored generally low, especially with respect to preventive care measures, we failed to observe any substantial changes in the clinical provision of ANC care attributable to the PBF.

Conclusion
The observed effect pattern reflects the incentive structure implemented by the scheme, with a stronger focus on structural elements compared with clinical aspects of care. This limited the scheme’s overall potential to improve ANC provision at the client level after the observed three-year implementation period. To improve both facility readiness and health worker performance, stronger incentives are needed to increase adherence to clinical standards and patient care outcomes.
Noninvasive prenatal testing, ultrasonographic findings and poor prenatal diagnosis rates for twin pregnancies: a retrospective study
Authors: Yuan Xiying , Wang Weinan , Dai Lei , Yong Wenjing , Pei Chenlin , Li Jingzhi , Wu Lingqian 
Published: May 2023

AbstractBackgroundNoninvasive prenatal testing (NIPT) is increasingly used in the clinical prenatal screening of twin pregnancies, and its screening performance for chromosomal abnormalities requires further evaluation. For twin pregnancies with indications for prenatal diagnosis, there is a lack of clinical data to assess the prenatal diagnosis rate (PDR). The aim of this study was to evaluate the screening performance of NIPT for foetal chromosomal abnormalities in twin pregnancies and the PDR in the second and third trimesters.MethodsUltrasound scans were carried out for all twin pregnancies between 11 and 13+ 6gestational weeks. For twin pregnancies with nuchal translucency thickness˂3.0 mm and no foetal structural malformations, NIPT was performed after blood sampling, followed by routine ultrasound monitoring. Women with twin pregnancies who underwent NIPT at the prenatal diagnostic centre of Xiangya Hospital from January 2018 to May 2022 were included in the study. Genetic counselling was offered to each pregnant woman when the NIPT result indicated a high risk of abnormalities or abnormal ultrasonographic (USG) findings were detected. We followed up twin pregnancies for NIPT results, USG findings, prenatal diagnosis results and pregnancy outcomes.ResultsIn 1754 twin pregnancies, the sensitivity, specificity and positive predictive value of NIPT for trisomy 21 were 100%, 99.9% and 75%, and the corresponding values for sex chromosome aneuploidy (SCA) were 100%, 99.9% and 50%, respectively. For the 14 twin pregnancies for which the NIPT results indicated a high risk of abnormalities, the PDR was 78.6% (11/14). For the 492 twin pregnancies for which the NIPT results indicated a low risk of abnormalities, the rate of USG findings in the second and third trimesters was 39.4% (194/492); of these pregnancies, prenatal diagnosis was recommended for 16.7% (82/492), but it was actually performed in only 8.3% (41/492), and the PDR was 50% (41/82). There was no significant difference in the PDR between the NIPT high-risk and low-risk groups.ConclusionsThe screening performance of NIPT for SCA in twin pregnancies needs to be further evaluated. When abnormal NIPT results or USG findings are used as the main prenatal diagnostic indicator in the second and third trimesters, the PDR is poor.
Prevalence and associated risk factors of dry eye disease in Hotan, Xinjiang: a cross-sectional study
Authors: Li Xiaolong , Wang Zhen , Mu Jingyu , Puerkaiti Hamila , Nulahou Ayinu , Zhang Jie , Zhao Yong , Sun Qi , Li Yuanyuan , Wang Yan , Gao Yunxian 
Published: May 2023

Abstract
Objectives

To assess the prevalence of dry eye disease (DED) in the Uyghur population in Hotan, Xinjiang, and to identify risk factors associated with this disorder.

Methods
Between January and September of 2020, 5,121 Uyghur subjects aged 18 − 98 years from 105 villages were selected and studied cross-sectionally using a whole-group random sampling method in the Hotan area, Xinjiang, China. The Ocular Surface Disease Index questionnaire was used to collect subjective symptoms of DED and examine tear-film break-up times. The break up time and Schirmer’s test were used to collect objective signs, to determine the prevalence of DED and its risk factors.

Results
A total of 5,121 subjects aged 18 − 98 years were recruited from the Uyghur population in the Hotan region of Xinjiang, China, for eye examinations and questionnaire surveys. A total of 40.6% (2,078/5,121) were diagnosed with DED, of which 38.3% were male and 41.9% were female. The prevalence of DED was the highest in subjects ≥ 65 years of age, with 47.8% in males and 53.3% in females. The lowest occurrence was in subjects 18 − 44 years of age, with 32.5% in males and 33.7% in females. Older age, tea drinking, and staying awake late were risk factors affecting the severity of DED prevalence (p < 0.05), but there was no significant difference in sex, presence of diabetes, or presence of hypertension (p > 0.05).

Conclusion
The prevalence of DED in the study population was 40.6%, and its prevalence was higher in females, when compared with males. The prevalence of dry eye also increased with age, and at an advanced age, female sex, smoking, staying awake late, and not exercising were risk factors for DED.
The efficacy and safety of tranexamic acid in rheumatoid arthritis patients undergoing simultaneous bilateral total knee arthroplasty: a multicenter retrospective study
Authors: Cao Guorui , Zhang Shaoyun , Wang Yixuan , Xu Hong , Quan Songtao , Cai Litao , Feng Wei , Yao Junna , Tan Honglue , Pei Fuxing 
Published: May 2023

Abstract
Background
The efficacy and safety of tranexamic acid (TXA) in reducing blood loss following total knee arthroplasty (TKA) in patients with osteoarthritis have been widely confirmed. However, there is still a paucity of the evidences regarding the effectiveness of TXA in patients with rheumatoid arthritis (RA). The purpose of the study is to explore the efficacy and safety of intravenous TXA on blood loss and transfusion risk following simultaneous bilateral TKA (SBTKA) in patients with RA.

Methods
As a multicenter retrospective study, a total of 74 patients diagnosed with RA who underwent SBTKA were assigned into TXA group (15 mg/kg intravenous TXA before skin incision, n = 50) and control group (no TXA use, n = 24). The primary outcomes were total blood loss (TBL) and intraoperative blood loss (IBL). The secondary outcomes were hemoglobin (Hb) and hematocrit (Hct) drop on postoperative day 3, transfusion rate and volume, ambulation time, length of stay, hospitalization expenses and the incidence of complications.

Results
The mean TBL, IBL and transfusion volume in TXA group were significantly lower than those in control group. The Hb and Hct drop on postoperative day 3 in control group were higher than those in TXA group (p<0.05). The similar trend was detected on transfusion rate, ambulation time and length of stay. The incidence of complications and hospitalization expenses did not differ significantly between the two groups (p>0.05).

Conclusions
TXA could effectively reduce blood loss, decrease transfusion risk, shorten ambulation time and length of stay following SBTKA in patients with RA, without increasing the risk of complications.
Three-dimensional (3D) quantitative evaluation of the morphological changes of the upper anterior alveolar bone after retraction of a maxillary incisor
Authors: Liu Hong , Xi Xun , Liu Dongxu 
Published: May 2023

Abstract
Background
The purpose of this study was to assess morphological changes of the upper anterior alveolus after retraction of a maxillary incisor by applying three-dimensional (3D) superimposition of pretreatment (T1) and posttreatment (T2) cone-beam computed tomography (CBCT) data.

Methods
The study group was comprised of 28 patients with skeletal Class II malocclusion who underwent incisor retraction. CBCT data were acquired before (T1) and after (T2) orthodontic treatment. Labial and palatal alveolar thickness were assessed at the crestal, midroot and apical levels of the retracted incisors. Following three-dimensional (3D) cranial base superimposition, we performed surface modeling and inner remodeling of the labial and palatal alveolar cortex of the maxillary incisors. Paired t-tests were used to compare T0 and T1 bone thickness and volume measurements. Comparisons between labial and palatal surface modeling, inner remodeling and outer surface modeling were performed with paired t-tests in SPSS 20.0 version.

Results
We observed controlled tipping retraction of the upper incisor. After treatment, the alveolar thickness on the labial sides increased and the palatal alveolar thickness decreased. The labial cortex showed a wider range of modeling area with a larger bending height and a smaller bending angle than the palatal side. The extent of inner remodeling was more prominent than the outer surface on both the labial and palatal sides.

Conclusions
Adaptive alveolar surface modeling occurred in response to incisor tipping retraction on both the lingual and labial sides although these changes occurred in an uncoordinated manner. Tipping retraction of the maxillary incisors led to a reduction in alveolar volume.
Effects of metformin on human gingival fibroblasts: an in vitro study
Authors: Alshibani Nouf , AlKattan Reem , Allam Eman , Alshehri Fahad A. , Shalabi Manal Matouq , Almuhanna Nada , Almarshad Houriah , Aljamili Anfal 
Published: May 2023

Abstract
Objective
To investigate the effects of metformin (MF) treatment on the matrix metalloproteinases (MMPs) and proinflammatory cytokines production from lipopolysaccharide (LPS) - stimulated human gingival fibroblasts (HGFs).

Methods
HGFs were obtained from subcultures of biopsies from clinically healthy gingival tissues of patients undergoing oral surgeries. Cell cytotoxicity assay was used to determine the effect of different concentrations of MF on viability of HGFs. HGFs were then incubated and treated with different concentrations of MF and Porphyromonas gingivais (Pg) LPS. MMP-1, MMP-2, MMP-8, MMP-9, IL-1β, and IL-8 expression analysis was performed using xMAP technology (Luminex 200, Luminex, Austin, TX, USA). Student’s t-test for a single sample was used to compare the mean values of the study groups with the control value. A p-value of <0.05 and 95% confidence intervals were used to report the statistical significance and precision of mean values.

Results
Concentrations of 0.5, 1- and 2-mM MF had a minimal non-significant cytotoxic effect on the HGFs and caused statistically significant reduction of MMP-1, MMP-2, MMP-8 and IL-8 expressed by the LPS-stimulated HGFs.

Conclusion
The results of the present study confirm that MF suppresses MMP-1, MMP-2, MMP-8 and IL-8 in LPS-stimulated HGFs suggesting an anti-inflammatory effect of MF and potential adjunct therapeutic role in the treatment of periodontal diseases.
Clinical and microbiological outcomes of subgingival instrumentation supplemented with high-dose omega-3 polyunsaturated fatty acids in periodontal treatment – a randomized clinical trial
Authors: Stańdo-Retecka Mirella , Piatek Paweł , Namiecinska Magdalena , Bonikowski Radosław , Lewkowicz Przemyslaw , Lewkowicz Natalia 
Published: May 2023

Abstract
Purpose
This study aimed to evaluate the impact of dietary supplementation with omega-3 polyunsaturated fatty acids (PUFAs) eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) combined with scaling and root planing (SRP) in untreated periodontitis stage III and IV.

Methods
Forty patients were randomly assigned to the test group receiving SRP plus omega-3 PUFAs (n = 20) or control group receiving SRP alone (n = 20). Clinical changes of pocket probing depths (PD), clinical attachment level (CAL), bleeding on probing (BOP) and rates of closed pockets (PPD ≤ 4 mm without BOP) were evaluated at baseline and after 3 and 6 months. Phorphyromonas gingivalis, Tanarella forsythia, Treponema denticola and Aggregatibacter actinomycetemcomitans counts were analysed at baseline and at 6 months. Serum was subjected to lipid gas chromatography/mass spectrometry analysis at baseline and at 6 months.

Results
Significant improvement of all clinical parameters at 3 and 6 months was observed in both groups. For the primary outcome “change of mean PD,” no significant difference was detected between the groups. Patients treated with omega-3 PUFAs demonstrated significantly lower rates of BOP, higher gain of CAL and higher number of closed pockets at 3 months in comparison to the control group. After 6 months, no clinical differences between the groups were found, with the exception of lower BOP rates. Moreover, in the test group, the number of key periodontal bacteria was significantly lower than in the control group at 6 months. Increased proportions of serum n-3 PUFAs and decreased proportions of n-6 PUFAs were detected at 6 months in the patients from the test group.

Conclusion
High-dose omega-3 PUFA intake during non-surgical treatment of periodontitis results in short-term clinical and microbiological benefits.
The study protocol was approved by the ethical committee of Medical University of Lodz (reference number RNN/251/17/KE) and registered at clinicaltrials.gov (NCT04477395) on 20/07/2020.
Determinants of quality contraceptive counselling information among young women in Sierra Leone: insights from the 2019 Sierra Leone demographic health survey
Authors: Sserwanja Quraish , Nuwabaine Lilian , Kamara Kassim , Musaba Milton W. 
Published: May 2023

Abstract
Background
The quality of contraceptive counseling information received by prospective clients of family planning services can greatly influence both the uptake and continued use of contraceptives. Therefore, an understanding of the level and determinants of quality contraception information among young women in Sierra Leon could inform family programs, with the aim of reducing the high unmet need in the country.

Methods
We analyzed secondary data from the 2019 Sierra Leone Demographic Health Survey (SLDHS). Participants were young women aged 15–24 years, who were using a family planning method (n = 1,506). Good quality family planning counselling was defined a composite variable that included; a woman being told about side effects, how to deal with side effects, and the availability of other family planning methods/options. Logistic regression was performed using SPSS software version 25.

Results
Out of 1,506 young women, 955 (63.4%, 95% CI: 60.5–65.3) received good quality family planning counselling services. Of the 36.6% that received inadequate counselling, 17.1% received no counselling at all. Good quality family planning counselling services was positively associated with receiving family planning services from government health facilities (aOR: 2.50, 95% CI: 1.83–3.41), having no major challenges with distance to access healthcare (aOR: 1.45, 95% CI: 1.10–1.90), having visited a health facility (AOR: 1.93, 95% CI: 1.45–2.58), and having been visited by a health field worker within the last 12 months (aOR: 1.67, 95% CI: 1.24–2.26) while residing in the southern region ( aOR: 0.39, 95% CI: 0.22–0.69) and belonging to the richest wealth quintile (aOR: 0.49, 95% CI: 0.24–0.98) were associated with less odds of receiving good quality family planning counselling services.

Conclusion
About 37% of the young women in Sierra Leone do not receive good quality family planning counselling services of which 17.1% received none. Based on the study’s findings, it is important to emphasize the need to ensure that all young women have access to proper counselling services especially for those receiving these services from private health units, from the southern region and richest wealth quintile. Ensuring easier access through increasing affordable and friendly access points and strengthening field health workers’ capacity in providing family planning services could also help improve access to good quality family planning services.
Situational vulnerability within mental healthcare – a qualitative analysis of ethical challenges during the COVID-19 pandemic
Authors: Faissner Mirjam , Werning Anna , Winkelkötter Michael , Foullois Holger , Löhr Michael , Gather Jakov 
Published: May 2023

Abstract
Background
Mental healthcare users and patients were described as a particularly vulnerable group in the debate on the burdens of the COVID-19 pandemic. Just what this means and what normative conclusions can be derived from it depend to a large extent on the underlying concept of vulnerability. While a traditional understanding locates vulnerability in the characteristics of social groups, a situational and dynamic approach considers how social structures produce vulnerable social positions. The situation of users and patients in different psychosocial settings during the COVID-19 pandemic has not yet been comprehensively considered and ethically analyzed under the aspect of situational vulnerability.

Methods
We present the results of a retrospective qualitative analysis of a survey of ethical challenges in different mental healthcare facilities of a large regional mental healthcare provider in Germany. We evaluate them ethically using a dynamic and situational understanding of vulnerability.

Results
Difficulties in implementing infection prevention measures, restrictions of mental health services in favor of infection prevention, social isolation, negative health effects on mental healthcare users and patients, and challenges in implementing regulations on state and provider levels within the local specificities emerged across different mental healthcare settings as ethically salient topics.

Conclusions
Applying a situational and dynamic understanding of vulnerability allows the identification of specific factors and conditions that have contributed to an increased context-dependent vulnerability for mental healthcare users and patients. These factors and conditions should be considered on the level of state and local regulations to reduce and address vulnerability.