Category: Nevin Manimala

BMC Ophthalmol. 2023 May 2;23(1):193. doi: 10.1186/s12886-023-02942-0.

ABSTRACT

BACKGROUND: To evaluate anterior segment structural alterations after implantable collamer lens (ICL) implantation in myopic patients using swept-source quantitative optical coherence tomography (SS-OCT).

METHODS: This prospective study included 47 eyes in 24 patients with preoperative spherical equivalent ≥ -3.00 D. Patients underwent ICL implantation at Department of Ophthalmology, Peking University Third Hospital, from May 2021 to December 2022. SS-OCT was used to measure anterior chamber width (ACW), angle opening distance (AOD), angle recess area (ARA), trabecular-iris area (TISA), trabecular-iris angle (TIA), iridotrabecular contact (ITC) area, and ITC Index before ICL implantation surgery and at 1 month follow-up. The correlations among the ITC index, vault, and angle parameters were analysed. Receiver operating characteristic (ROC) analysis was used to explore the ability of the vault to identify eyes with suspected angle-closure.

RESULTS: At one month following ICL implantation, the ITC area was 0.396 ± 0.37 mm², and the ITC index is 8.143 ± 5.439%. All angle parameters, except ACW, showed a statistically significant reduction on SS-OCT (P < 0.05). Mean AOD500, AOD750, ARA500, ARA750, TISA500, TISA750, TIA500, and TIA750 values at one month postoperatively decreased by 60.0%, 60.4%, 58.1%, 59.2%, 57.3%, 58.7%, 48.8%, and 50.7%, respectively. The vault was positively correlated with the ITC index and percent change in anterior chamber angle parameters. A vault of > 0.659 mm was found to be optimal for angle-closure suspect with a sensitivity of 85.2% and a specificity of 53.9%.

CONCLUSIONS: Anterior chamber angle parameters decreased one month after ICL implantation, and their percentage changes and ITC index correlated with the vault. When the vault is larger than 0.659 mm, it is necessary to be alert to possible closed angle suspicion.

PMID:37131213 | DOI:10.1186/s12886-023-02942-0

Pediatr Rheumatol Online J. 2023 May 2;21(1):43. doi: 10.1186/s12969-023-00822-x.

ABSTRACT

BACKGROUND: Although arthritis is recognized as an extra-intestinal manifestation of celiac disease, little is known about the clinical course and outcomes of pediatric celiac-associated arthritis. This study describes clinical characteristics, treatments, and outcomes of children with celiac-associated arthritis.

METHODS: This was a retrospective cohort study of children with celiac disease seen in pediatric rheumatology clinic between 2004 and 2021 for joint complaints. Data was abstracted from electronic health records. Patient demographics and clinical manifestations were evaluated using standard descriptive statistics. Physician- and patient-reported outcomes were evaluated at the index visit, 6-month follow-up, and last recorded visit, and were compared using Wilcoxon signed-rank tests.

RESULTS: Twenty-nine patients with celiac disease were evaluated for joint complaints, and 13 were diagnosed with arthritis. Their mean age was 8.9 years (SD 5.9), and 61.5% were female. Celiac disease diagnosis was made before arthritis diagnosis in only 2 cases (15.4%). Initial testing that led to the celiac disease diagnosis was obtained by the rheumatologist in 6 cases (46.2%). Only 8 patients (61.5%) had concomitant GI symptoms, and of these, 3 patients had BMI z-scores <-1.64 and 1 had impaired linear growth. Arthritis presentation was most often oligoarticular (76.9%) and asymmetric (84.6%). Most cases required systemic therapy (n = 11, 84.6%) with DMARDs, biologics, or both. Of the 10 patients who required systemic therapy and reported compliance with the gluten-free diet, 3 (30%) were able to stop systemic medications. Two of 3 patients who cleared celiac serologies came off systemic medications. Statistically significant improvement was noted in the number of joints involved (p = 0.02) and physician global assessment of disease activity (p = 0.03) between the index and final visit.

CONCLUSIONS: Rheumatologists play an important role in the identification of celiac disease, as arthritis was the presenting symptom in most cases and was not always associated with GI symptoms or poor growth. The arthritis was most often oligoarticular and asymmetric. Most children required systemic therapy. The gluten-free diet may not be sufficient to manage arthritis, but antibody clearance may be an indicator of higher likelihood of disease control off medications. Outcomes are promising with a combination of diet and medical therapy.

PMID:37131195 | DOI:10.1186/s12969-023-00822-x

BMC Infect Dis. 2023 May 2;23(1):270. doi: 10.1186/s12879-023-08243-7.

ABSTRACT

BACKGROUND: Noroviruses are a leading cause of acute gastroenteritis (AGE) worldwide. The geographical characteristics of norovirus outbreaks in Beijing and their influencing factors remain unknown. This study aimed to explore the spatial distributions, geographical characteristics, and influencing factors of norovirus outbreaks in Beijing, China.

METHODS: Epidemiological data and specimens were collected through the AGE outbreak surveillance system in all 16 districts of Beijing. Data on spatial distribution, geographical characteristics, and influencing factors of norovirus outbreaks were analyzed using descriptive statistics methods. We measured spatial, geographical clustering of high- or low-value deviance from random distribution using Z-scores and P-values as statistical significance measures with Global Moran’s I statistics and Getis-Ord Gi in ArcGIS. Linear regression and correlation methods were used to explore influencing factors.

RESULTS: Between September 2016 and August 2020, 1,193 norovirus outbreaks were laboratory-confirmed. The number of outbreaks varied seasonally, typically peaking in spring (March to May) or winter (October to December). Outbreaks primarily occurred around central districts at the town level, and spatial autocorrelation was evident in both the entire study period and in individual years. Hotspots of norovirus outbreaks in Beijing were primarily found in contiguous areas between three central districts (Chaoyang, Haidian, Fengtai) and four suburban districts (Changping, Daxing, Fangshan, Tongzhou). The average population numbers, mean number of all schools, and mean number of kindergartens and primary schools for towns in central districts and hotspot areas were higher than those in suburban districts and non-hotspot areas respectively. Additionally, population numbers and densities of kindergartens and primary schools were influencing factors at the town level.

CONCLUSIONS: Hotspots of norovirus outbreaks in Beijing were in contiguous areas between central and suburban districts with high populations, and high kindergarten and primary school densities were the likely driving forces. Outbreak surveillance needs to focus on contiguous areas between central and suburban districts with increased monitoring, medical resources, and health education.

PMID:37131193 | DOI:10.1186/s12879-023-08243-7

BMC Anesthesiol. 2023 May 2;23(1):146. doi: 10.1186/s12871-023-02113-0.

ABSTRACT

BACKGROUND: An algorithm of bupivacaine dose based on height is applied to reduce maternal hypotension in caesarean section under spinal anesthesia. This study is designed to further verify whether the algorithm of bupivacaine dose based on height is suitable.

METHODS: The parturients were grouped according to height. The comparison of anesthesia characteristic among subgroups was carried out. The univariate and multivariate binary logistic regressions were executed to reanalyze the interference factor for the anesthesia characteristic.

RESULTS: When the dose of bupivacaine was adjusted by using the height based dosing algorithm, except for weight (P < 0.05), other general data did not present statistical changes with height (P > 0.05); the incidences of complications, characteristics of sensory or motor block, quality of anesthesia and neonatal outcome were of no statistical difference among parturients with different heights (P > 0.05); the height, weight and body mass index were not related with maternal hypotension (P > 0.05). When the dose of bupivacaine is constant, except for weight and body mass index (P > 0.05), the height was the independent risk factor for maternal hypotension (P < 0.05).

CONCLUSIONS: Except for weight and body mass index, the height has an influence on the bupivacaine dose. It is reasonable that the bupivacaine dose is adjusted by using this dosing algorithm based on height.

TRIAL REGISTRATION: This study was registered at http://clinicaltrials.gov (13/04/2018, NCT03497364).

PMID:37131191 | DOI:10.1186/s12871-023-02113-0

BMC Womens Health. 2023 May 2;23(1):214. doi: 10.1186/s12905-023-02368-2.

ABSTRACT

BACKGROUND: Understanding how prenatal care influences planned postpartum contraception can help guide shared decision-making. This study looks to examine the association of the quality of prenatal care with planned postpartum contraception.

METHODS: This is a retrospective cohort study conducted in a single tertiary, academic urban institution in the southwest United States. The institutional review board (IRB) for human research at Valleywise Health Medical Center approved this study. Using a validated measure of prenatal care, the Kessner index, prenatal care was classified as adequate, intermediate, or inadequate. The World Health Organization (WHO) protocol for contraceptive effectiveness was used to classify contraceptives as very effective, effective, and less effective. The planned contraceptive choice was determined at the time of hospital discharge after delivery by discharge summary. Chi-squared testing and logistic regression were used to measure associations between the adequacy of prenatal care and contraceptive planning.

RESULTS: This study included 450 deliveries, 404 (90%) patients with adequate prenatal care, and 46 (10%) patients without adequate (intermediate or inadequate) prenatal care. There was not a statistically significant difference in planning for very effective or effective methods of contraception at hospital discharge between adequate (74%) and non-adequate (61%) prenatal care groups (p = 0.06). There was no association between the adequacy of prenatal care and the effectiveness of contraceptive planning after controlling for age and parity (aOR = 1.7, 95% CI 0.89-3.22).

CONCLUSIONS: Many women chose very effective and effective methods of postpartum contraception; however, there was no statistically significant association between the quality of prenatal care and planned contraception at hospital discharge.

PMID:37131190 | DOI:10.1186/s12905-023-02368-2

BMC Med Educ. 2023 May 2;23(1):303. doi: 10.1186/s12909-023-04225-0.

ABSTRACT

BACKGROUND: Bristol Medical School has adopted a near peer-led teaching approach to deliver Basic Life Support training to first year undergraduate medical students. Challenges arose when trying to identify early in the course which candidates were struggling with their learning, in sessions delivered to large cohorts. We developed and piloted a novel, online performance scoring system to better track and highlight candidate progress.

METHODS: During this pilot, a 10-point scale was used to evaluate candidate performance at six time-points during their training. The scores were collated and entered on an anonymised secure spreadsheet, which was conditionally formatted to provide a visual representation of the score. A One-Way ANOVA was performed on the scores and trends analysed during each course to review candidate trajectory. Descriptive statistics were assessed. Values are presented as mean scores with standard deviation (x̄±SD).

RESULTS: A significant linear trend was demonstrated (P < 0.001) for the progression of candidates over the course. The average session score increased from 4.61 ± 1.78 at the start to 7.92 ± 1.22 at the end of the final session. A threshold of less than 1SD below the mean was used to identify struggling candidates at any of the six given timepoints. This threshold enabled efficient highlighting of struggling candidates in real time.

CONCLUSIONS: Although the system will be subject to further validation, our pilot has shown the use of a simple 10-point scoring system in combination with a visual representation of performance helps to identify struggling candidates earlier across large cohorts of students undertaking skills training such as Basic Life Support. This early identification enables effective and efficient remedial support.

PMID:37131183 | DOI:10.1186/s12909-023-04225-0

BMC Musculoskelet Disord. 2023 May 2;24(1):341. doi: 10.1186/s12891-023-06430-w.

ABSTRACT

BACKGROUND: After total knee arthroplasty, 10-30% of patients still complain about knee pain, even after exact positioning of the components. Altered knee kinematics are crucial in this regard. The aim of our study was to experimentally determine the influence of different degrees of component coupling of knee prostheses on joint kinematics during muscle-loaded knee flexion in-vitro.

METHODS: Femoral rollback and femoral rotation of a standard cruciate retaining (GCR), a posterior stabilized (GPS), a rotational hinge (RSL) and a total hinge (SSL) design of the same series of knee replacement implants (SL-series) of one single manufacturer (Waldemar Link GmbH, Hamburg, Germany) were analyzed and set in relation to the motion of the corresponding native knee in a paired study design. All different coupling degrees were analyzed in the same human knees. To simulate muscle loaded knee flexion, a knee simulator was used. Kinematics were measured with an ultrasonic motion capture system and integrated in a calculated coordinate system via CT-imaging.

RESULTS: The largest posterior motion on the lateral side was found for the native knee (8.7 ± 7.0 mm), followed by the GPS (3.2 ± 5.1 mm) and GCR (2.8 ± 7.3 mm) implants, while no motion was found for the RSL (0.1 ± 3.0 mm) and the SSL (-0.6 ± 2.7 mm) implants. In contrast, on the medial side, only the native knee showed a posterior motion (2.1 ± 3.2 mm). Regarding femoral external rotation, the only implant where the observed difference did not reach statistical significance when compared to the native knee was the GCR (p = 0.007).

CONCLUSION: The GCR and GPS kinematics closely imitate those of the native joint. Medial femoral rollback is reduced, however, with the joint pivoting around a rotational center located in the medial plateau. Without additional rotational forces, the coupled RSL and SSL prostheses closely resemble each other with no femoral rollback or relevant rotational component. The femoral axis, however, shifts ventrally in both models when compared with their primary counterparts. The positioning of the coupling mechanism in the femoral and tibial component thus can already lead to altered joint kinematics even in prostheses with an identical surface geometry.

PMID:37131176 | DOI:10.1186/s12891-023-06430-w

BMC Womens Health. 2023 May 2;23(1):215. doi: 10.1186/s12905-023-02373-5.

ABSTRACT

BACKGROUND: According to International Convention on the Right of Person with Disabilities (CRPD), all nations should discern Sexual and Reproductive Health (SRH) as human rights and needs of all people living with disabilities. Women and girls with disabilities are highly vulnerable to SRH disparities including unintended pregnancy, acquiring sexual transmitted infections and unsafe abortion. Little has known about SRH service uptake and influencing factors among reproductive aged women living with disabilities.

METHODS: A community-based cross-sectional study was conducted from January 1-30, 2021, the central Gondar zone selected districts. A total of 535 reproductive-age (18-49 years) women with disabilities had been interviewed through face-to-face using structured questionnaire. Multistage cluster sampling method was applied. A binary logistic regression model was computed to look the relationship between independent variables and uptake of SRH, and p-value < 0.05 was a cut-off point to declare statistical significance.

RESULTS: A total of 33.27% (178/535) women with disabilities used at least one SRH service in the last twelve months preceding the survey. Those who had three or more children [AOR = 4.85; 95% CI (1.24-9.71)], autonomy to visit health care facilities [AOR = 3.30; 95% CI (1.45-6.92)], lived with sexual partner [AOR = 9.2; 95% CI (2.84-13.60)], subjected to radio/television in daily bases [AOR = 5.9; 95% CI (1.26-13.04)], autonomy to visit friends and relatives [AOR = 3.95; 95% CI (1.28-12.17)], had a discussion with family members about sexual and reproductive health [AOR = 9.36; 95% CI (3.44-17.47)], and engaged in sexual activity after the age of 18 years [AOR = 7.2; 95% CI (2.51-14.45)] were important predictors for service uptake.

CONCLUSIONS: Only one in three reproductive age women with disabilities used at least one SRH service. These findings suggest that accessing information through mainstream media exposure, having full autonomous to visit friends and families, open discussion with family members, live with sexual partner, having optimal family size and starting sexual act at the recommended age improve the uptake of SRH services. Therefore, the stakeholders (both governmental and non-governmental) need to make efforts to increase the uptake of SRH services.

PMID:37131161 | DOI:10.1186/s12905-023-02373-5

BMC Complement Med Ther. 2023 May 2;23(1):140. doi: 10.1186/s12906-023-03978-x.

ABSTRACT

BACKGROUND: Depression is more common in diabetic patients, with a 1.5-fold increased risk of death.Melissa officinalis (M. officinalis) have anti-diabetic and anti-depression activities. The study aimed to determine the efficacy of M. officinalis extract on depression, anxiety, and sleep quality in patients with type 2 diabetes with depressive symptoms.

METHODS: In this double-blind clinical trial, 60 volunteer patients (age range 20-65 years) with type 2 diabetes mellitus with symptoms of depression were randomized into the intervention (received 700 mg/day hydroalcoholic extract; n = 30) or control group (received 700 mg/day toasted flour; n = 30). Dietary intake, physical activity, anthropometric indices, FBS (Fasting blood sugar), hs-CRP(High-sensitivity C-reactiveprotein), depression, anxiety, and sleep quality were determined at the beginning and end of the study. Depression and anxiety were assessed by Beck Depression Inventory-II (BDI-II) and Beck Anxiety Inventory (BAI), respectively; sleep quality was evaluated using the Pittsburgh Sleep Quality Index (PSQI).

RESULTS: Sixty participants received M. officinalis extract or placebo, of which 44 patients completed the 12-week double-blind clinical trial. After 12-week the mean change of depression and anxiety scores were statistically significant between the two groups (p < 0.001 and p = 0.04, respectively), but no significant differences were observed in FBS, hs-CRP, anthropometric indices, sleep quality, and blood pressure.In the intervention group, there was a significant decrease in depression and anxiety severity(p < 0.001 and p = 0.01, respectively) at the end of the study compared to the baseline.

TRIAL REGISTRATION: All protocols in this study were followed in accordance with the Helsinki Declaration (1989 revision). Ethical approval for this study was obtained from the Iran University of Medical Sciences Ethics committee (IR.IUMS.FMD.REC 1396.9413468004; research.iums.ac.ir). The study was registered at the Iranian Registry of Clinical Trials (IRCT201709239472N16); Registration date: 09/10/2017.

PMID:37131158 | DOI:10.1186/s12906-023-03978-x

BMC Cancer. 2023 May 2;23(1):393. doi: 10.1186/s12885-023-10881-8.

ABSTRACT

BACKGROUND: Immunotherapy (IO) has become a standard of care for treating various types of metastatic cancers and has significantly improved clinical outcome. With the exception of metastatic melanoma in complete response for which treatment can be stopped at 6 months, these treatments are currently administered until either disease progression for some IO, 2 years for others, or unacceptable toxicity. However, a growing number of studies are reporting maintenance of response despite discontinuation of therapy. There is currently no evidence of a dose effect of IO in pharmacokinetic studies. Maintaining efficacy despite a reduction in treatment intensity by decreasing the frequency of administration in patients with highly selected metastatic cancer, is the hypothesis evaluated in the MOIO study.

METHOD/DESIGN: This non-inferiority, randomized phase III study aims to compare the standard regimen to a 3 monthly regimen of variousIO drugs in adult patients with metastatic cancer in partial (PR) or complete response (CR) after 6 months of standard IO dosing (except melanoma in CR). This is a French national study conducted in 36 centers. The main objective is to demonstrate that the efficacy of a three-monthly administration is not unacceptably less efficacious than a standard administration. Secondary objectives are cost-effectiveness, quality of life (QOL), anxiety, fear of relapse, response rate, overall survival and toxicity. After 6 months of standard IO, patients with partial or complete response will be randomized 1:1 between standard IO or a reduced intensity dose of IO, administered every 3 months. The randomization will be stratified on therapy line,, tumor type, IO type and response status. The primary endpoint is the hazard ratio of progression-free survival. With a planned study duration of 6 years, including 36 months enrolment time, 646 patients are planned to demonstrate with a statistical level of evidence of 5% that the reduced IO regimen is non-inferior to the standard IO regimen, with a relative non-inferiority margin set at 1.3.

DISCUSSION: Should the hypothesis of non-inferiority with an IO reduced dose intensity be validated, alternate scheduling could preserve efficacy while being cost-effective and allowing a reduction of the toxicity, with an increase in patient’s QOL.

TRIAL REGISTRATION: NCT05078047.

PMID:37131154 | DOI:10.1186/s12885-023-10881-8