Nevin Manimala

BMC Med Imaging. 2022 May 16;22(1):90. doi: 10.1186/s12880-022-00820-7.

ABSTRACT

BACKGROUND: Endovascular revascularization has become the first-line treatment of chronic mesenteric ischemia (CMI). The qualitative visual analysis of digital subtraction angiography (DSA) is dependent on observer experience and prone to interpretation errors. We evaluate the feasibility of 2D-Perfusion Angiography (2D-PA) for objective, quantitative treatment response assessment in CMI.

METHODS: 49 revascularizations in 39 patients with imaging based evidence of mesenteric vascular occlusive disease and clinical signs of CMI were included in this retrospective study. To assess perfusion changes by 2D-PA, DSA-series were post-processed using a dedicated, commercially available software. Regions of interest (ROI) were placed in the pre- and post-stenotic artery segment. In aorto-ostial disease, the inflow ROI was positioned at the mesenteric artery orifice. The ratios outflow to inflow ROI for peak density (PD), time to peak and area-under-the-curve (AUC) were computed and compared pre- and post-interventionally. We graded motion artifacts by means of a four-point scale. Feasibility of 2D-PA and changes of flow parameters were evaluated.

RESULTS: Motion artifacts due to a mobile vessel location beneath the diaphragm or within the mesenteric root, branch vessel superimposition and inadequate contrast enhancement at the inflow ROI during manually conducted DSA-series via selective catheters owing to steep vessel angulation, necessitated exclusion of 26 measurements from quantitative flow evaluation. The feasibility rate was 47%. In 23 technically feasible assessments, PD_outflow/PD_inflow increased by 65% (p < 0.001) and AUC_outflow/AUC_inflow increased by 85% (p < 0.001). The time to peak density values in the outflow ROI accelerated only minimally without reaching statistical significance. Age, BMI, target vessel (celiac trunk, SMA or IMA), stenosis location (ostial or truncal), calcification severity, plaque composition or the presence of a complex stenosis did not reach statistical significance in their distribution among the feasible and non-feasible group (p > 0.05).

CONCLUSIONS: Compared to other vascular territories and indications, the feasibility of 2D-PA in mesenteric revascularization for CMI was limited. Unfavorable anatomic conditions contributed to a high rate of inconclusive 2D-PA results.

PMID:35578260 | DOI:10.1186/s12880-022-00820-7

BMC Psychiatry. 2022 May 16;22(1):337. doi: 10.1186/s12888-022-03986-0.

ABSTRACT

BACKGROUND: The debate of whether machine learning models offer advantages over standard statistical methods when making predictions is ongoing. We discuss the use of a meta-learner model combining both approaches as an alternative.

METHODS: To illustrate the development of a meta-learner, we used a dataset of 187,757 people with depression. Using 31 variables, we aimed to predict two outcomes measured 60 days after initiation of antidepressant treatment: severity of depressive symptoms (continuous) and all-cause dropouts (binary). We fitted a ridge regression and a multi-layer perceptron (MLP) deep neural network as two separate prediction models (“base-learners”). We then developed two “meta-learners”, combining predictions from the two base-learners. To compare the performance across the different methods, we calculated mean absolute error (MAE, for continuous outcome) and the area under the receiver operating characteristic curve (AUC, for binary outcome) using bootstrapping.

RESULTS: Compared to the best performing base-learner (MLP base-learner, MAE at 4.63, AUC at 0.59), the best performing meta-learner showed a 2.49% decrease in MAE at 4.52 for the continuous outcome and a 6.47% increase in AUC at 0.60 for the binary outcome.

CONCLUSIONS: A meta-learner approach may effectively combine multiple prediction models. Choosing between statistical and machine learning models may not be necessary in practice.

PMID:35578254 | DOI:10.1186/s12888-022-03986-0

BMC Health Serv Res. 2022 May 16;22(1):659. doi: 10.1186/s12913-022-08037-8.

ABSTRACT

BACKGROUND: Telemedicine has grown significantly in recent years, mainly during the COVID-19 pandemic, and there has been a growing body of literature on the subject. Another topic that merits increased attention is differences in patient and family experience between telehealth and in-person visits. To our team’s knowledge, this is the first study evaluating pediatric and obstetrics outpatients experience with telemedicine and in-person visit types in an academic maternal and children’s hospital, and its correlation with geographic distance from the medical center throughout 2020, during the COVID-19 crisis.

METHODS: We aim to evaluate and compare patients’ telemedicine and in-person experience for ambulatory encounters based on survey data throughout 2020, during the COVID-19 pandemic, with particular focus on the influence of distance of the patient’s home address from the medical facility. A total of 9,322 patient experience surveys from ambulatory encounters (6,362 in-person and 2,960 telemedicine), in a maternal and children’s hospital during 2020 were included in this study. The percentage of patients who scored the question “Likelihood to recommend practice” with a maximum 5/5 (top box) score was used to evaluate patient experience. The k-means model was used to create distance clusters, and statistical t-tests were conducted to compare mean distances and Top Box values between telemedicine and in-person models. Logistic regression analysis was used to evaluate the correlation between Top Box scores and patients’ distance to the hospital.

RESULTS: Top Box likelihood to recommend percentages for in-person and telemedicine were comparable (in-person = 81.21%, telemedicine = 81.70%, p-value = 0.5624). Mean distance from the hospital was greater for telemedicine compared to in-person patients (in-person = 48.89 miles, telemedicine = 61.23 miles, p-value < 0.01). Patients who live farther displayed higher satisfaction scores regardless of the visit type (p-value < 0.01).

CONCLUSIONS: There is a direct relationship between the family experience and the distance from the considered medical center, during year 2020, i.e., patients who live farther from the hospital record higher Top Box proportion for “Likelihood to Recommend” than patients who live closer to the medical center, regardless of the approach, in-person or telemedicine.

PMID:35578239 | DOI:10.1186/s12913-022-08037-8

BMC Endocr Disord. 2022 May 17;22(1):132. doi: 10.1186/s12902-022-01049-9.

ABSTRACT

INTRODUCTION: There is almost no published data on the assessment of self-management practice among adult type II diabetes patients in Ethiopia. Hence, we aim to assess the level of self-management practice for people with type II diabetes patients attending Adama Hospital Medical College, Ethiopia.

METHOD: The study was conducted from April 1 to August 30, 2021 in type II diabetes mellitus patients at Adama Hospital Medical College. The survey was performed using the diabetes mellitus self-Management questionnaire, which consists of four domains Physical activity, Physician contact, Medication adherence, glucose management and dietary management of the patients. The data was analyzed using Statistical Package for Social Science (SPSS) version 20.0. Descriptive statistics was performed. Fisher’s Exact Test was used to determine the presence of association between adherence to self-care behavior and other variables. P-value less than 0.05 determines statistical significance.

RESULT: Majority (63.4%) of respondents do not perform self-monitoring of blood glucose (SMBG). Out of a total of 93 participants, 48 (51.6%) respondents adhered to insulin therapy. Sixty-two (66.7%) adhered to recommended diet management practice, 57 (61.3%) did not adhere to physical activity recommendations and 59 (63.5%) participants adhered to overall self-care practice (DMSQ).

CONCLUSION: Although the importance of self-care practices in the management of diabetes were recognized to be useful and effective for achieving glycemic control and preventing serious diabetes complications, our study found that most patients had not adhered to self-care practice especially in terms of SMBG and physical activity. Overall (DSMQ) adherence to self-care practice was optimal amongst type II diabetes patients in AHMC Chronic care unit.

PMID:35578229 | DOI:10.1186/s12902-022-01049-9

BMC Endocr Disord. 2022 May 16;22(1):131. doi: 10.1186/s12902-022-01021-7.

ABSTRACT

BACKGROUND: Obesity is a risk factor for metabolic diseases and often influences hormone change. Lipoprotein (a) (Lp(a)) is associated with various metabolic diseases, but there are few studies on the relationship between Lp(a) and hormones in obese patients. This study investigated the the relationship between Lp(a) and hormones in Chinese overweight/obese people.

METHODS: A total of 410 overweight/obese patients (Body mass index (BMI) ≥ 25 kg/m²) were included and underwent sociodemographic data investigations and relevant clinical examinations. Lp(a) was analyzed by colorimetric enzymatic assays and hormone was measured with chemiluminescence immunoassay method. According to Lp(a) levels, they were categorized into 3 groups: the lower Lp(a) group (Lp(a) levels < 30 mg/dl), the moderate Lp(a) group (Lp(a) levels between 30 mg/dl and 120 mg/dl) and the higher Lp(a) group (Lp(a) levels > 120 mg/dl). The differences of hormone levels among the three groups were compared and the relationship between Lp(a) and hormones was analyzed by Spearman’s rank correlation.

RESULTS: The higher Lp(a) group had significantly lower testosterone (TES) levels compared with the lower and moderate Lp(a) groups in the case of gender, age and BMI matching. Lp(a) concentration was negatively correlated with TES levels in all participants and the negative association between Lp(a) and TES levels was also observed when the analysis was stratified by gender. Additionally, the TES was statistically related with Lp(a) levels in the multiple linear regression model (95% confidence interval: – 0.451 to – 0.079).

CONCLUSIONS: TES levels was negatively associated with Lp(a) levels in Chinese overweight/obese patients.

PMID:35578222 | DOI:10.1186/s12902-022-01021-7

BMC Nurs. 2022 May 16;21(1):118. doi: 10.1186/s12912-022-00894-2.

ABSTRACT

BACKGROUND: Nursing professionalism is highly significant to the development of nursing. Florence Nightingale was the founder and leader of modern nursing, and Nightingale’s nursing professionalism has a significant impact on nursing in China and all over the world. In the new era, a new understanding of Nightingale’s nursing professionalism should be developed, and its positive role in nursing reshaped.

METHODS: A total of 1,557 nurses and nursing students from 27 provincial administrative regions of China were surveyed using a customized questionnaire. Their recognitions of Nightingale’s nursing professionalism were evaluated based on scores, and statistical differences between and within the groups were analyzed using an Analysis of Variance (ANOVA). The elements of Nightingale’s nursing professionalism were extracted by the exploratory factor method and a principal component analysis.

RESULTS: The Cronbach’s α of the questionnaire was 0.965, and the two groups did not differ significantly (p > 0.05). Based on the standard that the cumulative contribution rate of common factor should be > 85%, three common factors of Nightingale’s nursing professionalism, including professional emotion, professional ability and professional ethics, were extracted based on the Scree plot.

CONCLUSIONS: This study aimed to explore the connotation of Nightingale’s nursing professionalism. Our survey indicates that Nightingale’s nursing professionalism is highly recognized by nurses and nursing students in China. Its connotation includes professional emotion, ability and ethics. Nursing education and nursing management should fully utilize the leading role of Nightingale and guide the professional behaviors of nurses to be consistent with Nightingale’s nursing professionalism, thus, improving the degree of nurse professionalism.

PMID:35578206 | DOI:10.1186/s12912-022-00894-2

BMC Pregnancy Childbirth. 2022 May 16;22(1):412. doi: 10.1186/s12884-022-04745-5.

ABSTRACT

OBJECTIVE: To understand the use of online antenatal education classes accessed via the Mother and Child Health Handbook app during the COVID-19 pandemic in order to provide a basis and suggestions for optimizing Internet education during pregnancy under public health emergencies.

METHODS: We compared and analyzed the use of online antenatal education classes via the Mother and Child Health Handbook app in Hangzhou in 2019 and 2020 (during the COVID-19 pandemic).

RESULTS: Between January 1, 2019, and December 31, 2020, a total of 229,794 pregnant women created files and registered for the app, including 124,273 women in 2019 and 105,521 women in 2020. More pregnant women participated in online antenatal education learning (n = 36,379/34.5% vs. 29,226/23.5%, p = 0.000) in 2020 than in 2019. The proportion of pregnant women in the 18-34-year-old group who participated in online learning was higher than that in the advanced age group, and the difference was statistically significant (2019: 24.3% vs. 18.8%, p = 0.000) (2020: 35.7% vs. 27.4%, p = 0.000). More pregnant women accessed online antenatal education during early pregnancy (n = 13,463/37.0% vs. 9088/31.1%, p = 0.000) in 2020 than in 2019. Similar percentages of pregnant women participated in online antenatal education during mid-pregnancy (n = 15,426/52.8% vs. 19,269/53.0%, p = 0.639) in 2019 and 2020. Fewer pregnant women accessed online antenatal education during late pregnancy (n = 10,246/28.2% vs. 9476/32.4%, p = 0.000) in 2020 than in 2019. Fewer pregnant women choose to take ‘Puerperal Health’ courses in 2020 than in 2019 (early pregnancy: 36.20% vs. 42.79%, p = 0.000; mid-pregnancy: 41.65% vs. 48.19%, p = 0.000; late pregnancy: 55.31% vs. 58.41%, p = 0.000). Fewer pregnant women choose to take ‘Psychological Adjustment’ courses in 2020 than in 2019 (early pregnancy: 21.59% vs. 29.60%, p = 0.000; mid-pregnancy: 26.20% vs. 40.50%, p = 0.000; late pregnancy: 12.79% vs. 42.53%, p = 0.000). More pregnant women choose to study ‘Nutrition and Exercise’ in 2020 than in 2019 (early pregnancy: 44.48% vs. 25.95%, p = 0.000; mid-pregnancy: 47.77% vs. 40.75%, p = 0.000; late pregnancy: 55.94% vs. 42.99%, p = 0.000). “Pregnancy Care and Fetal Development” was the most selected course by pregnant women in early pregnancy (2019: 67.50%; 2020: 71.39%) and middle pregnancy (2019: 67.01%; 2020: 82.05%), and the proportion in 2020 was higher than it was in 2019. “Baby care” was the most selected course by pregnant women in late pregnancy, and the proportion in 2020 was higher than it was in 2019 (78.31% vs. 72.85%).

CONCLUSION: During the COVID-19 pandemic, online antenatal education was well-used by pregnant women. More women participated in the online antenatal education modules during the COVID-19 pandemic than during 2019.The proportion of choosing different courses for pregnant women before and after the COVID-19 epidemic varied, and the learning course needs of pregnant women in different trimesters were different.

PMID:35578202 | DOI:10.1186/s12884-022-04745-5

BMC Infect Dis. 2022 May 16;22(1):469. doi: 10.1186/s12879-022-07145-4.

ABSTRACT

BACKGROUND: Symptoms of depression are prevalent in people living with human immune deficiency virus/acquired immune deficiency syndrome (PLWHA), and worsened by lack of physical activity/exercises, leading to restriction in social participation/functioning. This raises the question: what is the extent to which physical exercise training affected, symptoms of depression, physical activity level (PAL) and social participation in PLWHA compared to other forms of intervention, usual care, or no treatment controls?

METHOD: Eight databases were searched up to July 2020, according to the Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) protocol. Only randomised controlled trials involving adults who were either on HAART/HAART-naïve and reported in the English language, were included. Two independent reviewers determined the eligibility of the studies, extracted data, assessed their quality, and risk of bias using the Physiotherapy Evidence Database (PEDro) tool. Standardised mean difference (SMD) was used as summary statistics for the mean primary outcome (symptoms of depression) and secondary outcomes (PAL and social participation) since different measuring tools/units were used across the included studies. Summary estimates of effects were determined using a random-effects model (I²).

RESULTS: Thirteen studies met the inclusion criteria with 779 participants (n = 596 participants at study completion) randomised into the study groups, comprising 378 males, 310 females and 91 participants with undisclosed gender, and with an age range of 18-86 years. Across the studies, aerobic or aerobic plus resistance exercises were performed 2-3 times/week, at 40-60 min/session, and for between 6-24 weeks, and the risk of bias vary from high to low. Comparing the intervention to control groups showed significant difference in the symptoms of depression (SMD = – 0.74, 95% confidence interval (CI) – 1.01, – 0.48, p ≤ 0.0002; I² = 47%; 5 studies; 205 participants) unlike PAL (SMD = 0.98, 95% CI – 0.25, 2.17, p = 0.11; I² = 82%; 2 studies; 62 participants) and social participation (SMD = 0.04, 95% CI – 0.65, 0.73, p = 0.91; I² = 90%; 6 studies; 373 participants).

CONCLUSION: Physical exercise training could have an antidepressant-like effect in PLWHA but did not affect PAL and social participation. However, the high heterogeneity in the included studies, implies that adequately powered randomised controlled trials with clinical/methodological similarity are required in future studies.

TRAIL REGISTRATION NUMBER: INPLASY202040048.

PMID:35578192 | DOI:10.1186/s12879-022-07145-4

BMC Pulm Med. 2022 May 16;22(1):196. doi: 10.1186/s12890-022-01987-z.

ABSTRACT

BACKGROUND: Long-lasting symptoms following SARS-CoV2-infection have been described in several studies. However, there is only limited knowledge about the ongoing pathophysiology and the association with pathological findings in medical examinations.

METHODS: In this post hoc analysis of a prospective trial, 135 patients following COVID-19 were enrolled and grouped with respect to the presence or absence of respiratory ongoing symptoms following COVID-19. Pulmonary function test (PFT), diffusion capacity measurement (TLCO SB and TLCO/VA), blood gas analysis (BGA), laboratory tests and high-resolution computed tomography (HRCT) of patients with persistent respiratory symptoms were compared to those of asymptomatic patients.

RESULTS: In this analysis, 71% (96/135) of all patients (mean age 49 years; range 20-91 years) reported long-lasting symptoms after a median (IQR) of 85 days (60-116) following COVID-19 whereby 57.8% (78/135) complained about persistent pulmonary symptoms. Pathological findings in blood test, PFT, TLCO, BGA and/or HRCT were found in 71.8% and 64.1% of patients with and without long-lasting respiratory symptoms respectively. Patients with persistent respiratory symptoms were significantly younger and presented a significant lower FVC (%), TLC (L), and TLCO SB compared to asymptomatic patients (p < 0.05). The multiple logistic regression results in a significant effect of age (p = 0.004) and TLCO SB (p = 0.042).

CONCLUSION: Following COVID-19, a large proportion of patients experience ongoing symptoms, whereby the respiratory symptoms are the predominant complaints. Compared to asymptomatic patients, patients with ongoing symptoms were younger and presented a significant lower FVC, TLC and TLCO SB. The multiple logistic regression demonstrated only a significant association between the TLCO SB as the only PFT parameter and the perceived symptoms.

PMID:35578190 | DOI:10.1186/s12890-022-01987-z

BMC Infect Dis. 2022 May 16;22(1):466. doi: 10.1186/s12879-022-07430-2.

ABSTRACT

BACKGROUND: It is not known whether post-traumatic stress disorder (PTSD) increases HIV-risk behaviours among young people in sub-Saharan Africa. We assessed associations of PTSD symptoms with sexual behaviour, HIV risk perception, and attitudes towards PrEP among young people taking part in the CHAPS community survey. We hypothesised that PTSD symptoms would increase sexual behaviours associated with HIV risk, hinder PrEP uptake and influence preference for daily versus on-demand PrEP.

METHODS: Young people without HIV, aged 13-24 years, were purposively recruited in Johannesburg and Cape Town in South Africa, Wakiso in Uganda, and Chitungwiza in Zimbabwe, and surveyed on socio-demographic characteristics, PrEP knowledge and attitudes, sexual behaviour, HIV perception and salience, and mental health. PTSD symptoms were measured using the Primary Care PTSD Screen for the Diagnostic and Statistical Manual of Mental Disorders 5 (PC-PTSD-5). Logistic and ordinal logistic regression was used to assess associations between PC-PTSD-5 score and socio-demographic characteristics, sexual behaviour, HIV risk perception, PrEP attitudes, and substance use, adjusting for age, sex, setting, depression and anxiety.

RESULTS: Of 1330 young people (51% male, median age 19 years), 522 (39%) reported at least one PTSD symptom. There was strong evidence that having a higher PC-PTSD-5 score was associated with reported forced sex (OR 3.18, 95%CI: 2.05-4.93), self-perception as a person who takes risks (OR 1.12, 95%CI: 1.04-1.20), and increased frequency of thinking about risk of HIV acquisition (OR 1.16, 95%CI: 1.08-1.25). PTSD symptoms were not associated with willingness to take PrEP, preference for on-demand versus daily PrEP, or actual HIV risk behaviour such as condomless sex.

CONCLUSIONS: Symptoms consistent with probable PTSD were common among young people in South Africa, Uganda and Zimbabwe but did not impact PrEP attitudes or PrEP preferences. Evaluation for PTSD might form part of a general assessment in sexual and reproductive health services in these countries. More work is needed to understand the impact of PTSD on HIV-risk behaviour, forced sex and response to preventive strategies including PrEP.

PMID:35578175 | DOI:10.1186/s12879-022-07430-2