Tag: pubmed

BMC Musculoskelet Disord. 2024 Sep 2;25(1):699. doi: 10.1186/s12891-024-07799-y.

ABSTRACT

PURPOSE: The task faced by surgeons becomes significantly more challenging when they encounter lower extremity bone defects due to a variety of causes requiring lengthening. The most discussed and successful approach is the Illizarov technique, or lengthening over a nail (LON):distraction osteogenesis is also widely performed with monoliteral external fixators and intramedullarylengthening nails have increasingly been used in the last decade.

METHODS: The data were collected from PubMed, Cochrane Library, Embase, and the Web of Science for all available studies comparing the outcomes of Ilizarov technique alone and LON technique (from January 1, 1997, to November 30, 2023). The outcomes of interest encompassed the external fixation index (EFI) (month/cm), mean duration of follow-up (MFT) (month), length gained (LG) (cm), consolidation index (CIx) (month/cm), and bone healing index (BHI) (month/cm).Complications include pin tract infection rate (PTI), axial deviation rate (AD), occurrence of intramedullary infection (II), delayed consolidation rate (DC), as well as data categorized into three levels of problems, obstacles, and sequelae based on the severity of complications.Two reviewers independently assessed each study for quality and extracted data. The case-control or respective cohort studies were evaluated using the Newcastle-Ottawa scale (NOS) to determine their techniqueological rigor.The Cochrane Collaboration’s risk assessment tool was employed to perform quality evaluations for randomized controlled trials.

RESULTS: This review included thirteen studies comprising a total of 629 patients.The external fixation index (month/cm) was significantly smaller in the LON technique compared to the Ilizarov technique alone [Mean Difference(MD) = -29.59, 95% CI -39.68–19.49, P < 0.00001].In terms of the mean follow-up time(month) (MD = -0.92, 95% CI -3.49-1.65, P = 0.57), length gained (cm) (MD = -0.87, 95%CI -2.80-1.07, P = 0.38), consolidation index (month/cm) (MD = 0.66, 95% CI -3.44-4.77, P = 0.75), and bone healing index (month/cm) (MD = -3.33, 95% CI -13.07-6.41, P = 0.5), there were no significant differences observed. The LON technique exhibited a lower incidence of axial deviation [Odds Ratio(OR) = 0.06, 95%CI 0.03-0.16, P < 0.00001] and pin tract infection (OR = 0.30, 95%CI 0.18-0.50, P < 0.00001) compared to the Ilizarov technique alone.The remaining complications, such as intramedullary infection rate (OR = 0.93, 95%CI 0.42-2.06, P = 0.85) and delayed consolidation rate(OR = 0.61, 95%CI 0.20-1.86, P = 0.38), did not exhibit statistically significant differences.Our findings demonstrated that the LON technique results in lower incidences of problems (38.5%vs.58.6%) and sequelae (16.6% vs.30.9%) when compared to the Ilizarov technique alone. However, the rates of obstacles (32.4% vs.32.3%) were comparable between the two methods.

CONCLUSIONS: Our findings indicate that patients treated with the LON technique experienced significantly shorter external fixation durations and a lower incidence of complications (e.g., pin tract infections and axial deviation) compared to those treated with the Ilizarov technique alone. Other outcome metrics showed no significant differences between the two techniques. However, the LON technique offers substantial benefits, including reduced external fixation times and increased comfort, which enhance patient compliance. In conclusion, the LON technique is a safe, reliable, and effective method for treating tibial and femoral defects.

PMID:39223554 | DOI:10.1186/s12891-024-07799-y

BMC Infect Dis. 2024 Sep 2;24(1):901. doi: 10.1186/s12879-024-09763-6.

ABSTRACT

BACKGROUND: A dolutegravir (DTG)-based antiretroviral regimen has been rolled out for pregnant women in low- and middle-income countries since 2020. However, available safety data are limited to a few clinical trials and observational studies. Hence, we present real-world pregnancy and birth outcome safety data from a large sample multicenter cohort study in Ethiopia.

METHODS: A retrospective cohort study was conducted in fourteen hospitals across Ethiopia from 2017 to 2022. HIV-infected pregnant women were followed from the date of prevention of mother-to-child transmission (PMTCT) care enrolment until the infant was 6-8 weeks old. The primary safety outcome was a composite of adverse pregnancy events comprising spontaneous abortion, intrauterine fetal death (IUFD) before onset of labor, preterm birth, and maternal death. Additionally, a composite adverse birth outcome was assessed, comprising intrapartum fetal demise, low birth weight, and neonatal death. Finally, a composite of adverse pregnancy or birth outcome was also investigated. The exposure of interest was the antiretroviral treatment (ART) regimen used during pregnancy for PMTCT of HIV.

RESULTS: During the study period, 2643 women were enrolled in routine PMTCT care. However, 2490 (92.2%) participants were eligible for the study. A total of 136/1724 (7.9%, 95% CI: 6.7-9.3%) women experienced adverse pregnancy outcomes. Fewer women in the DTG-based group (5.4%, 95% CI: 3.7-7.5%) had adverse pregnancy outcomes than in the Efavirenz (EFV)-based group (8.3%, 95% CI: 6.6-10.3%), P = 0.004. After controlling for baseline differences, the DTG group had a 43% lower risk of adverse pregnancy outcomes (adjusted odd ratio (AOR), 0.57; 95% CI, 0.32-0.96%) and a 53% lower risk of preterm birth (AOR, 0.47; 95% CI, 0.22-0.98%) compared to the EFV group. A total of 103/1616 (6.4%, 95% CI: 5.2-7.7%) women had adverse birth outcomes. Although the difference was not statistically significant, fewer women in the DTG group (30/548; 5.5%, 95% CI: 3.7-7.7%) than in the EFV group (57/830; 6.9%, 95% CI: 5.2-8.8%) had adverse birth outcomes.

CONCLUSIONS: In this study, we observed that DTG-based regimens were associated with better pregnancy and birth outcome safety profiles, reaffirming the WHO recommendation. However, a prospective study is recommended to assess uncaptured maternal and perinatal adverse outcomes, such as congenital abnormalities, and infant growth and neurocognitive development.

PMID:39223552 | DOI:10.1186/s12879-024-09763-6

Plant Methods. 2024 Sep 2;20(1):134. doi: 10.1186/s13007-024-01261-9.

ABSTRACT

BACKGROUND: The proportion of nitrogen (N) derived from the atmosphere (Ndfa) is a fundamental component of the plant N demand in legume species. To estimate the N benefit of grain legumes for the subsequent crop in the rotation, a simplified N balance is frequently used. This balance is calculated as the difference between fixed N and removed N by grains. The Ndfa needed to achieve a neutral N balance (hereafter θ ) is usually estimated through a simple linear regression model between Ndfa and N balance. This quantity is routinely estimated without accounting for the uncertainty in the estimate, which is needed to perform formal statistical inference about θ . In this article, we utilized a global database to describe the development of a novel Bayesian framework to quantify the uncertainty of θ . This study aimed to (i) develop a Bayesian framework to quantify the uncertainty of θ , and (ii) contrast the use of this Bayesian framework with the widely used delta and bootstrapping methods under different data availability scenarios.

RESULTS: The delta method, bootstrapping, and Bayesian inference provided nearly equivalent numerical values when the range of values for Ndfa was thoroughly explored during data collection (e.g., 6-91%), and the number of observations was relatively high (e.g., ≥ 100 ). When the Ndfa tested was narrow and/or sample size was small, the delta method and bootstrapping provided confidence intervals containing biologically non-meaningful values (i.e. < 0% or > 100%). However, under a narrow Ndfa range and small sample size, the developed Bayesian inference framework obtained biologically meaningful values in the uncertainty estimation.

CONCLUSION: In this study, we showed that the developed Bayesian framework was preferable under limited data conditions ─by using informative priors─ and when uncertainty estimation had to be constrained (regularized) to obtain meaningful inference. The presented Bayesian framework lays the foundation not only to conduct formal comparisons or hypothesis testing involving θ , but also to learn about its expected value, variance, and higher moments such as skewness and kurtosis under different agroecological and crop management conditions. This framework can also be transferred to estimate balances for other nutrients and/or field crops to gain knowledge on global crop nutrient balances.

PMID:39223551 | DOI:10.1186/s13007-024-01261-9

BMC Musculoskelet Disord. 2024 Sep 2;25(1):692. doi: 10.1186/s12891-024-07820-4.

ABSTRACT

BACKGROUND: The COVID-19 pandemic has led to the broad acceptance of distance education (DE), with university professors and students conducting the teaching-learning process remotely from their homes. The propose of this study to investigate the prevalence of musculoskeletal disorders (MSDs) before and during the COVID-19 pandemic and identify risk factors associated with DE that may contribute to an increased incidence of these disorders among university professors.

METHODS: This cross-sectional analytical study took a comparative approach and involved 310 university professors in Iran. Data were gathered using an online questionnaire. Initially, demographic and occupational information of the professors, hours of physical activity, and hours spent using electronic devices were recorded. Participants were then asked to report MSDs in various body areas throughout the previous year and the previous seven days. Finally, MSDs risk factors such as workstation ergonomics during computer, laptop, smartphone, and tablet use, as well as working postures during online teaching or offline content development during the COVID-19 pandemic, were examined.

RESULTS: The majority of the participants were male (66.13%), with a PhD (46.77%) and a faculty member position (74.2%). On average, the use of computers and laptops increased by 2.67 h and 2.72 h, respectively, during the pandemic compared to before the pandemic. This increase was statistically significant (P < 0.001). MSDs incidence increased significantly before and during the COVID pandemic was observed in the areas of the neck, shoulders, lower and upper back, arms, forearms, wrists and fingers (P < 0.05). The highest cumulative incidence (Cin) of MSDs was related to the neck (Cin = 24.20%), upper back (Cin = 21.29%), low back (Cin = 18.06%) and fingers (Cin = 16.13%). The prevalence of MSDs during the COVID pandemic was significantly associated with employment status (P = 0.042), work experience (P = 0.016), age (P = 0.027), increase in the use of computers/ laptops (P < 0.001), decrease of the smartphone/tablet distance from the body (P = 0.047), workstation (smartphone-tablet, computer, laptop) (P < 0.05), head position (smartphone-tablet) (P = 0.029), display height (computer/laptop) (P = 0.045) and physical activity (P = 0.006).

CONCLUSIONS: It appears that the increased duration of smartphone, computer, and laptop use, combined with decreased physical activity and detrimental changes in ergonomic conditions of workstations during the quarantine period caused by the COVID-19 pandemic, has resulted in a shift from dynamic to static tasks and an increase in the prevalence and incidence of MSDs among university professors.

PMID:39223549 | DOI:10.1186/s12891-024-07820-4

BMC Med Educ. 2024 Sep 2;24(1):956. doi: 10.1186/s12909-024-05926-w.

ABSTRACT

BACKGROUND: Pediatrics is one of the most important medical specialties in the Kingdom of Saudi Arabia) KSA) since it serves a large population. Therefore, the pediatrics residency program is considered one of the most important and competitive programs. Obtaining acceptance in Saudi programs depends mainly on the Saudi Commission for Health Specialties (SCFHS) score, then the applicant enrolls to do the interviews with the training centers in the accepted region. This study aimed to evaluate the factors used by pediatric program directors (PD) in accepting applicants in their pediatric residency program in KSA.

METHODS: In this cross-sectional study, an online questionnaire consisting of 49 items was distributed among 76 current and former pediatric PDs in KSA. Participants were selected via non-probability convenience sampling. Data were collected and analyzed using the Social Sciences Statistical Package (SPSS version 26).

RESULTS: Of the sample of PD studied, males represented 77.6%, while females represented 22.4%. Most of the PDs were over 50 years old. Most of them were former pediatric PDs (71.1%). The current study found that the Saudi Medical Licensing Exam was the most important factor [3.87 (0.89)] followed by services and electives [3.86 (0.65)], research [3.84 (0.83)], interview [3.77 (0.89)], GPA [3.50 (0.62)], and letter of recommendation [3.39 (0.76)].

CONCLUSIONS: For those interested in pediatrics residency programs in KSA, this study recommends that seeking a high Saudi Medical Licensing Exam (SMLE) score, taking pediatric elective rotations during internship, and acquiring excellent basic knowledge in research were the most important aspects of pediatrics residency selection from the pediatrics PD’s perspective.

PMID:39223546 | DOI:10.1186/s12909-024-05926-w

Radiat Oncol. 2024 Sep 2;19(1):116. doi: 10.1186/s13014-024-02501-x.

ABSTRACT

BACKGROUND: A predictive assay for late radiation toxicity would allow more personalized treatment planning, reducing the burden of toxicity for the more sensitive minority, and improving the therapeutic index for the majority. In a previous study in prostate cancer patients, the γ-H2AX foci decay ratio (γ-FDR) was the strongest predictor of late radiation toxicity. The current study aimed to validate this finding in a more varied group of patients with pelvic cancer. Additionally, the potential correlation between the γ-FDR and patient-reported outcomes was investigated.

METHODS: Prostate and gynecological cancer patients with ≥ 24 months of follow-up were included in the current analysis. Toxicity was evaluated by physician (CTCAE version 4) and patient (EORTC questionnaires). γ-FDRs were determined in ex vivo irradiated lymphocytes. Correlation between γ-FDR and toxicity was assessed using both linear and logistic regression analyses. The highest toxicity grade recorded during follow-up was used. The association between global quality of life and γ-FDR was tested by comparing the change in quality of life over time in patients with γ-FDR < or ≥ 3.41, a previously established threshold.

RESULTS: Eighty-eight patients were included. Physician-assessed and patient-reported cumulative grade ≥ 2 toxicity was 25% and 29%, respectively; which is much lower than in the previous cohort (i.e., 51% CTCAE grade ≥ 2). Patients with toxicity exhibited less favorable dose-volume parameters. In men, these parameters showed significant improvement compared to the previous cohort. The proportion of patients with a low γ-FDR increased with severity of toxicity, but this trend was not statistically significant. In addition, a γ-FDR < 3.41 was not correlated with the development of moderate to severe toxicity. Post-treatment decline in global quality of life was minimal, and similar for patients with γ-FDR < or ≥ 3.41.

CONCLUSIONS: In the present study, the γ-H2AX foci decay ratio could not be validated as a predictor of late radiation toxicity in patients with pelvic cancer. Improved radiotherapy techniques with smaller irradiated bladder and bowel volumes have probably resulted in less toxicities. Future studies on genetic markers of toxicity should be powered on these lower incidences. We further recommend taking persistency, next to severity, into consideration.

PMID:39223539 | DOI:10.1186/s13014-024-02501-x

BMC Med Ethics. 2024 Sep 2;25(1):94. doi: 10.1186/s12910-024-01092-2.

ABSTRACT

BACKGROUND: In the years to come, artificial intelligence will become an indispensable tool in medical practice. The digital transformation will undoubtedly affect today’s medical students. This study focuses on trust from the perspective of three groups of medical students – students from Croatia, students from Slovakia, and international students studying in Slovakia.

METHODS: A paper-pen survey was conducted using a non-probabilistic convenience sample. In the second half of 2022, 1715 students were surveyed at five faculties in Croatia and three in Slovakia.

RESULTS: Specifically, 38.2% of students indicated familiarity with the concept of AI, while 44.8% believed they would use AI in the future. Patient readiness for the implementation of technologies was mostly assessed as being low. More than half of the students, 59.1%, believe that the implementation of digital technology (AI) will negatively impact the patient-physician relationship and 51,3% of students believe that patients will trust physicians less. The least agreement with the statement was observed among international students, while a higher agreement was expressed by Slovak and Croatian students 40.9% of Croatian students believe that users do not trust the healthcare system, 56.9% of Slovak students agree with this view, while only 17.3% of international students share this opinion. The ability to explain to patients how AI works if they were asked was statistically significantly different for the different student groups, international students expressed the lowest agreement, while the Slovak and Croatian students showed a higher agreement.

CONCLUSION: This study provides insight into medical students’ attitudes from Croatia, Slovakia, and international students regarding the role of artificial intelligence (AI) in the future healthcare system, with a particular emphasis on the concept of trust. A notable difference was observed between the three groups of students, with international students differing from their Croatian and Slovak colleagues. This study also highlights the importance of integrating AI topics into the medical curriculum, taking into account national social & cultural specificities that could negatively impact AI implementation if not carefully addressed.

PMID:39223538 | DOI:10.1186/s12910-024-01092-2

Plant Physiol Biochem. 2024 Aug 31;215:109081. doi: 10.1016/j.plaphy.2024.109081. Online ahead of print.

ABSTRACT

The garden strawberry (Fragaria x ananassa Duch.) is cultivated and consumed worldwide because of the pleasant flavor and health-promoting phytochemicals of its false fruits. Monocrop cultivars produce fully ripe strawberries in about one month post-anthesis throughout the spring, while everbearing cultivars undergo additional strawberry production in autumn. In this work, we evaluated the impact of different season-dependent environmental conditions on the ripening program of an everbearing field-gown strawberry variety from autumn 2015 to spring 2016. We combined ad hoc sampling and environmental data collection with LC-MS-based untargeted metabolomics to dissect the effects of cumulative temperature and solar irradiation on fruit quality parameters and secondary metabolism during ripening. Different dynamics in specific sub-groups of metabolites were observed in strawberries experiencing distinct amounts of cumulative temperature and solar irradiation during spring and autumn. The integration of statistical analyses on collected data revealed that solar irradiation mainly affected fruit fresh weight and organic acid levels, whereas temperature had a more selective effect on the accumulation of specific flavonols, anthocyanins, and soluble sugar. These findings are of suitable interest to design further approaches for the study of the complex interactions among environmental conditions and ripening in strawberries grown in a real-world scenario.

PMID:39222548 | DOI:10.1016/j.plaphy.2024.109081

Natl Med J India. 2024 Mar-Apr;37(2):64-68. doi: 10.25259/NMJI_821_2021.

ABSTRACT

Background Social media platforms, especially Facebook and WhatsApp, can spread public health information effectively. We aimed to estimate the influence of health-related messages circulated through these social media platforms on health-related decision-making and its associated factors. Methods We did a cross-sectional analytical study among adults (aged >18 years) who visited the outpatient department of a tertiary care hospital in suburban West Bengal, during July-September 2021. A structured questionnaire was used regarding receiving health-related messages on social media and the subsequent effect on health-related decision-making in the past year. Results A total of 673 individuals participated in the study. Their mean (SD) age was 34.4 (10.2) years and 56.8% (382) were men, 50.8% (342) were graduates, 63.6% (428) were from rural areas and 82.9% (558) were active users of more than one social media platform. A total of 474 (70.4%; 95% CI 67.0-73.9) study participants reported health-related decision-making based on social media messages, whereas 44.7% (301) reported checking the authenticity of forwarded messages or posts or updates with healthcare professionals before making a decision. On adjusted analysis, participants who had secondary education (adjusted prevalence ratio [aPR] 1.40; 95% CI 1.01-1.94), used both the media (aPR 1.31; 95% CI 1.09-1.58) and checked the authenticity of the messages with a healthcare professional (aPR 1.52, 95% CI 1.38-1.68) were significantly more influenced by the messages, posts or updates received on social media platforms. Conclusion WhatsApp forwards or updates and Facebook posts or updates influence health-related decision-making among the Indian adult population.

PMID:39222538 | DOI:10.25259/NMJI_821_2021

Natl Med J India. 2024 Mar-Apr;37(2):118-119. doi: 10.25259/NMJI_988_2023.

NO ABSTRACT

PMID:39222535 | DOI:10.25259/NMJI_988_2023