Prospective Open Cohort Study Research Articles

Assessment of Molecular Response to Treatment of Chronic Myeloid Leukemia at Kigali University Teaching Hospital of Kigali

Abstract Introduction/Objective Chronic Myeloid Leukemia (CML) is a clonal myeloproliferative neoplasm that gives proliferation advantage to the granulocytes, it is one of the commonest chronic hematological malignancies and it is a burden to the world especially Rwanda. Since the introduction of Tyrosine Kinase Inhibitors (TKIs) especially the first line Imatinib in 2001, the outcomes of CML have been much improved and currently, in developed world, the life expectancy of patients with CML is almost the same as general population. However, it is not the case in developing world especially Rwanda due to limitation on access of all TKIs. The aim of this study is to assess molecular response on Imatinib of patients with CML. Methods/Case Report This was a one arm open label prospective cohort study that recruited 31 patients with CML and on Imatinib for at least three months and followed for 11 months. The clinical features at diagnosis and recruitment were captured from the hospitals filing systems and investigator’s own assessment at the time of recruitment respectively. Information was filled to a well-structured questionnaire. Lab results at the time of diagnosis was obtained from laboratories reporting systems. Samples for full blood count and BCR-ABL1/ABL1 were withdrawn from the patients at the time of diagnosis and they were run at University Teaching Hospital of Kigali (CHUK). Data analysis was performed using Statistical Package for the Social Sciences (SPSS 28) and South Texas Art Therapy Association (STATA 15.0). Results (if a Case Study enter NA) Better response according to European LeukemiaNet (ELN) defined as optimal response was found among only 38.7% and resistance to imatinib defined by ELN as Failure and warning was found in 45.2% and 16.1% respectively. The eleven months survival rate was 93.5% in which it is 85.7% among those in treatment failure group. Late presentation showed by presence of very high White Blood Cells above 100x109/L and massive splenomegaly at diagnosis, and poor adherence to Imatinib according to Morsiky Medication Adherence Scale (MMAS-8) are associated with poor molecular response to Imatinib. Conclusion CML is a serious disease especially to those who suffer from it; on time diagnosis, access to all available lines of TKIs and better follow up are crucial for patients with CML to access the same life expectancy as general population as it is in developed world.

The role of microenvironmental factors in the pre-ovulatory oocyte in the pathogenesis of “poor” ovarian response to in vitro fertilization (IVF) programs

Background. The “poor” response to ovarian stimulation during IVF (in vitro fertilization) cycles depends on various factors, including the biochemical composition of the follicle microenvironment. Recent studies have focused on the relationship between vascular tone regulators, angiogenic factors, oxidative stress, and the quality of oocytes. Despite this, there is still no consensus on the exact effect of these factors on folliculogenesis or their role in “poor” responses.Objective. To evaluate the content of biochemical factors and regulators of vascular tone and angiogenesis in follicular fluid in patients with a “poor” ovarian response to stimulation in IVF programs, compared to similar indicators in women with a normal ovarian response.Materials and methods. An open prospective cohort study was conducted, including 56 patients who were part of the IVF program. The criterion for separating the cohort of women was their response to controlled ovarian stimulation during the IVF cycle. Women with a “poor” response (n=32) were placed in the main group, while those with a normal response (n=24) were in the comparison group. Follicular fluid samples from women with a “poor” response were divided into two subgroups based on the presence or absence of an oocyte-cumulus complex in the follicle. The biochemical and soluble regulatory factors in follicular fluid were analyzed in both groups after controlled ovarian stimulation was completed. Statistical analysis of the data was done using methods from variation statistics. A critical level of significance for the differences was set at p ≤0.05.Result. The levels of urea, glucose, high-density lipoprotein, and total antioxidant status (TAOS) in follicular fluid (FF) from patients with a “poor” ovarian response were statistically significantly higher compared to those in the control group. The levels of bilirubin, low-density lipoprotein, and uric acid were also significantly lower in VF from patients in the main group compared to the control group, p<0.05. The indices of vascular endothelial growth factor (VEGF-A) and vascular endothelial growth receptor-2 (VEGFR-2) in FF from women with a “poor” response were significantly lower than those from patients with a normal response, while the levels of endogenous nitric oxide were significantly higher in the former group compared to the latter, p<0.05.Conclusion. The absence of an oocyte-cumulus complex in the pre-ovulatory follicle, which is associated with a “poor” response of the ovary to stimulation, is likely due to a disruption in vascularization processes. This is supported by a decrease in the levels of pro- and anti-angiogenic factors, such as VEGF-A and VEGFR-2.

Low Levels of Adropin Predict Adverse Clinical Outcomes in Outpatients with Newly Diagnosed Prediabetes after Acute Myocardial Infarction.

Adropin-a multifunctional peptide with tissue-protective capacity that regulates energy homeostasis, sensitivity to insulin and inflammatory response-seems to show an inverse association with the presence of cardiovascular and renal diseases, obesity and diabetes mellitus in the general population. The purpose of the study is to elucidate whether adropin may be a plausible predictive biomarker for clinical outcomes in post-ST elevation of myocardial infarction (STEMI) patients with newly diagnosed prediabetes according to the American Diabetes Association criteria. A total of 1214 post-STEMI patients who received percutaneous coronary intervention were identified in a local database of the private hospital "Vita Center" (Zaporozhye, Ukraine). Between November 2020 and June 2024, we prospectively enrolled 498 patients with prediabetes in this open prospective cohort study and followed them for 3 years. The combined clinical endpoint at follow-up was defined as cardiovascular death due to acute myocardial infarction, heart failure, sudden death due to arrhythmia or cardiac surgery, and/or all-cause death. We identified 126 clinical events and found that serum levels of adropin < 2.15 ng/mL (area under the curve = 0.836; 95% confidence interval = 0.745-0.928; sensitivity = 84.9%; specificity = 72.7%; likelihood ratio = 3.11; p = 0.0001) predicted clinical outcomes. Multivariate logistic regression showed that a Gensini score ≥ 32 (Odds ratio [OR] = 1.07; p = 0.001), adropin ≤ 2.15 ng/mL (OR = 1.18; p = 0.001), use of SGLT2i (OR = 0.94; p = 0.010) and GLP-1 receptor agonist (OR = 0.95; p = 0.040) were independent predictors of clinical outcome. Kaplan-Meier plots showed that patients with lower adropin levels (≤2.15 ng/mL) had worse clinical outcomes compared to patients with higher adropin levels (>2.15 ng/mL). In conclusion, low levels of adropin (≤2.15 ng/mL) independently predicted clinical outcomes in post-STEMI patients with newly detected prediabetes and improved the discriminative ability of the Gensini score for 3-year follow-up events. Future clinical studies are needed to clarify whether adropin is a promising molecule to be incorporated into conventional risk scores for the prediction of MACCEs after STEMI.

Age and sex specific thresholds for risk stratification of cardiovascular disease and clinical decision making: prospective open cohort study

ObjectiveTo quantify the potential advantages of using 10 year risk prediction models for cardiovascular disease, in combination with risk thresholds specific to both age and sex, to identify individuals at...

Prevention of premature birth in female patients with bacterial vaginosis using a complex of natural antimicrobial peptides and cytokines

Introduction. The prevalence of bacterial vaginosis (BV) comprises 23–29 %, which in pregnant women is a known risk factor for premature birth (PB) that rates increases by 2.9-fold. BV treatment with antibiotics has no effect PB incidence, therefore stressing a need to search for alternative remedies.Aim: to evaluate the effectiveness of treatment, including antibacterial therapy and a complex preparation containing natural antimicrobial peptides and cytokines, to reduce the incidence of birth defects in pregnant women with BV.Materials and Methods. Design: a prospective open comparative cohort study in parallel groups was conducted with 101 pregnant women: Group I (n = 69) received the antibiotic Metronidazole, 500 mg tablets orally twice a day for 7 days, and a complex preparation containing exogenous natural antimicrobial peptides and cytokines (Superlymph®) suppositories per 25 IU once a day vaginally in the evening for 20 days; Group II (n = 32) received Metronidazole alone (the same regimen). Patient examination was carried out using approaches included clinical methods, accepted in obstetrics, and laboratory tests – microscopy of vaginal content smears, real-time polymerase chain reaction (PCR).Results. The PB (within 240–366 weeks) incidence in Group I was significantly lower than in Group II and comprised 2.9 % vs. 21.9 %, respectively (p = 0.004), with an 8-fold decline in developing PB risk (relative risk (RR) = 0.13; 95 % confidence interval (CI) = 0.03–0.60), whereas inter-group percentage of pregnant women with high risk (PB history) was comparable (p = 0.39) so that PB incidence did not differ from pregnant women without former PB. Microbiological recovery after treatment for BV was achieved in 85.5 % of patients from Group I vs. 56.3 % in Group II (RR = 1.52; 95 % CI = 1.10–2.10; p = 0.002) based on real-time PCR data. The persistence of anaerobic flora after treatment was significantly lower in Group I vs. Group II reaching 7.2 and 34.4 % (p &lt; 0.001), respectively, with a 5-fold lower PB risk (RR = 0.21; 95 % CI = 0.08–0.56). Cessation of viral shedding compared to the number of patients with initial viral shedding was achieved in 94.6 % vs. 8.3 % of patients, respectively, with a 50-fold decline in risk (RR = 0.02; 95 % CI = 0.005–0.08; p &lt; 0.001). The number of newborns weighing less than 2500 g was significantly lower from paired mothers who received Superlymph® + Metronidazole comprising 2.9 % vs. 15.6 % treated with Metronidazole alone (p = 0.03), whereas a risk of low birth weight neonates was decreased by 6-fold (RR = 0.16; 95 % CI = 0.03–0.88). The condition of the neonates assessed by birth Apgar score was comparable.Conclusion. The use of a complex preparation Superlymph® (suppositories per 25 IU once an day vaginally, for 20 days) along with oral antibiotic Мetronidazole in pregnant women with BV facilitates a decline in PB incidence down to 2.9 % at gestational age of 240–366 weeks lowering a risk of PB exceeding that of antibacterial therapy by 8-fold, including patients with former PB.

“Everybody looks at it as drug use instead of pain management”: Experiences of chronic pain and its management among older people living with HIV who use drugs in Vancouver, British Columbia

BackgroundChronic pain is a common comorbidity among people living with HIV (PLHIV) who use drugs. However, in-depth understanding of how chronic pain is managed among PLHIV who use drugs remains limited, especially in the aging population. We sought to explore how older PLHIV who use drugs manage chronic pain and situate these experiences within their social and structural contexts. MethodsThis study draws on semi-structured, in-depth interviews conducted with 27 PLHIV who use drugs and were living with chronic pain in Vancouver, Canada. Participants were recruited through outreach at an integrated HIV care facility and from an open prospective cohort study of PLHIV who use drugs. Interviews were audio-recorded, transcribed, and coded. Salient themes were identified using an inductive-deductive approach to coding. ResultsThree themes emerged from our data analysis. First, chronic pain influenced daily life and functioning, including ability to manage HIV and other health conditions. Second, provider-related barriers, including anti-drug stigma and discrimination, impeded access to pain management. Third, illicit drugs were often used to self-manage pain. ConclusionsThis study advances our understanding of the everyday experiences of living with chronic pain among older PLHIV who use drugs. Inadequately managed pain may contribute to an array of health- and drug-related harms among this population. Our findings underscore the need for equitable access to pain care, and safer alternatives to the toxic illicit drug supply in the context of the illicit drug poisoning epidemic, to relieve suffering and improve quality of life for older PLHIV who use drugs.

Mental COP: Mental Health Cohort Of Police officers in Korea

PurposeThis cohort study addresses the need for comprehensive and longitudinal research on police officers’ mental health, focusing on the relationship between occupational factors, individual characteristics and mental health status or...

Profile of Nagasaki Islands Study (NaIS): A Population-based Prospective Cohort Study on Multi-disease.

In an aging society, it is important to visualize the conditions of people living with diseases or disabilities, such as frailty and sarcopenia, and determine the environmental and genetic factors underlying such conditions. Atherosclerosis and arterial stiffness are key conditions between these factors and noncommunicable diseases. In 2014, we launched a population-based prospective open-cohort study, the Nagasaki Islands Study (NaIS), which was conducted in Goto City, located in the remote islands of Nagasaki Prefecture, Japan, mostly involving middle-aged and older residents. We conducted our own health checkups along with the annual standardized checkups organized by the municipality; recruited study participants; and started to follow them for vital status (death), migration, and occurrence of diseases, such as myocardial infarction, stroke, fracture, and human T-cell leukemia virus type 1 (HTLV-1)-associated uveitis. Our checkups were conducted as baseline surveys in different areas of Goto City during the fiscal years 2014-2016, secondary surveys during 2017-2019, and tertiary surveys since 2021, consisting of medical interviews, physical examinations, blood and urine tests, body composition measurements, osteoporosis screening, arterial stiffness measurements, carotid ultrasonography, and dental examination. A total of 4,957 residents participated in either the baseline or secondary surveys and were followed; 3,594 and 3,364 residents (aged 27-96 and 28-98 years) participated in the baseline and secondary surveys, respectively. In conclusion, the NaIS has been undertaken to reveal the influence of aging and risk factors of noncommunicable diseases and disabilities, with an aim to contribute towards better healthcare in the future.

Istradefylline/L‐DOPA Parkinson's disease therapy and energy coupling

AbstractBackgroundBoth dopamine and adenosine are physiologically involved in cellular energy metabolism.AimNovel approaches targeting delaying progression strategies for Parkinson's disease (PD) examined the effects of long‐term use of A2AR antagonist/istradefylline (IST) adjunct to L‐DOPA (LD), nutshell IST‐LD, with an expected energy coupling (EC) to attenuate neuronal excitotoxicity.MethodsA single‐center prospective open cohort study was conducted at the Department of Neurology, Okinawa Islands, Japan. The cohort included incident and prevalent PD cases that were non‐randomly assigned to the IST‐LD (n = 90) and LD (n = 157) groups, followed by an open‐label treatment in clinical practice from October 2013 to September 2020. Patients were evaluated using physician‐rated MDS‐UPDRS I/III, and patient‐rated MDS‐NMS using the total score, body weight, and blood biomarkers of EC.ResultsAs the primary clinical outcome, MDS‐UPDRS part III scores showed less worsening in the IST‐LD than in the LD group (1.29 ± 6.0 vs. 5.0 ± 6.5, p &lt; 0.01) and off‐time Hoehn and Yahr stage (0.05 ± 0.49 vs. 0.26 ± 0.54, p &lt; 0.01). As the secondary clinical outcome, the detected mean body weight losses were similar between the two groups; however, the evident linkage of the daily dose of LD and variations in the blood markers of IGF‐I and HKII, which were inferred as LD‐mediated energy demand effects, were partially attenuated by IST.ConclusionIST‐LD plays an essential role in behavioral outputs for patients with PD and might contribute to the interplay of energy‐consuming demands of LD with the attenuation of weight loss and emerging type 2 diabetes mellitus.

Search for predictors of complications of acute coronary syndrome with ST segment elevation – protocol of a prospective open cohort study PROMETHEUS

During the first year after myocardial infarction, coronary artery restenosis, fatal arrhythmias, hospitalization for heart failure or cardiac death may occur. It is necessary to search for biomarkers to predict complications of myocardial infarction. As such predictors, it seems promising to introduce the ABCDE-SE echocardiographic protocol, as well as study the metabolism of vitamin D and proteins of the fibrinolysis system. Cardiospecific microRNAs-21, -29, -143 can be used as pathogenetic factors in the development of complications; it is proposed to study the ongoing pharmacotherapy and patients’ compliance with it as controllable factors.Aim: To search for predictors of complications of myocardial infarction based on the assessment of echocardiographic parameters, vitamin D metabolism, components of the fibrinolysis system and cardiac-specific microRNAs.Material and Methods. The PROMETHEUS study is designed as a prospective, open-label, non-randomized cohort study. It is planned to include 300 patients newly admitted to the vascular center with a preliminary diagnosis of ST-segment elevation ACS. All patients will have their vitamin D concentrations determined; genetic variants of polymorphisms of the vitamin D receptor gene and vitamin D binding protein; concentrations of urokinase and soluble urokinase receptor; microRNA-21, -29, -143, as well as echocardiography using the ABCDE-SE protocol at 1, 3, 6 and 12 months from inclusion. Pharmacotherapy will be assessed at all stages.Expected results: Based on the results of the study, a comprehensive algorithm for optimizing the prediction and prevention of complications of myocardial infarction will be developed and introduced into practical healthcare.

Body mass index as a dominant risk factor for metabolic syndrome among indonesian adults: a 6-year prospective cohort study of non-communicable diseases

BackgroundNon-communicable diseases (NCDs), notably cardiovascular disease and type 2 diabetes mellitus, are largely driven by metabolic syndrome (MetS), a cluster of critical risk factors. Despite extensive research, the progression of MetS, especially in Indonesia, has received limited attention. This research tracks adult MetS risk dynamics in a populous Bogor District cohort, providing crucial insights into its evolving nature.MethodsThis prospective open cohort study analysed secondary data from the Special Research - Cohort Study of Non-Communicable Diseases by the Ministry of Health, Republic of Indonesia from 2011 to 2018. The final sample was 1,376 Indonesian adult participants, all residents of Bogor District. MetS outcome, dietary assessment, physical activity, and biomarkers were analysed every two consecutive years.ResultsThe risk of overweight and obese participants developing MetS was 2.4 and 4.4 times higher, respectively (95% CI: 1.176–3.320 and 3.345–5.740) than those with body mass index (BMI) in the normal range. Participants who reported less intentional physical exercise had a MetS risk 1.5 times higher (95% CI: 1.034–2.109) than those with more intentional physical exercise. The role of diet is also significant, evidenced by a 30% reduction in MetS risk for people with fat intakes in the 2nd quartile compared to the 1st quartile (95% CI: 0.505–0.972). Meanwhile, a carbohydrate intake in the 2nd quartile increased the risk of MetS 1.5 times (95% CI: 1.063–2.241) in comparison with the 1st quartile.ConclusionsNotably, participants with underweight BMI exhibited the highest cumulative survival of MetS, while those with obese BMI recorded the lowest cumulative survival. There is an urgent need for strategic interventions to enhance the existing early detection and NCD monitoring program. This involves a targeted focus on promoting a community-based healthy lifestyle in the Bogor District. The study emphasizes the importance of tailored public health measures to address specific risk factors identified in the local context, aiming to mitigate the prevalence and impact of MetS in the population.

Preliminary results of Polish national multicenter LILEO study on ileostomy reversal.

&lt;b&gt;&lt;br&gt;Introduction:&lt;/b&gt; Ileostomy reversal is a common surgical procedure and currently standardized perioperative and surgical protocols are lacking.&lt;/br&gt; &lt;b&gt;&lt;br&gt;Aim:&lt;/b&gt; LILEO study was designed to perform a multicenter analysis on numerous perioperative parameters and estimation of the incidence of postoperative complications.&lt;/br&gt; &lt;b&gt;&lt;br&gt;Materials and methods:&lt;/b&gt; The study is an open multicenter prospective cohort study. Preliminary results of the LILEO study after 3 months were available from 18 Polish surgical centers comprising full data of 59 patients who underwent ileostomy reversal.&lt;/br&gt; &lt;b&gt;&lt;br&gt;Results:&lt;/b&gt; Parameters such as preoperative care, surgical technique, postoperative course and complications were analyzed. Preoperative fasting was used in 49.1% of patients. Fifty nine percent of anastomosis were handsewn and in 72.9% of patients had primary single suture wound closure. Mean length of hospital stay was 7.9 days (min 2 days, max 26 days). Complications occurred overall in 20 patients (33.9%). In 11.9% of patient's complications had grade III A/B in Clavien-Dindo classification.&lt;/br&gt; &lt;b&gt;&lt;br&gt;Discussion:&lt;/b&gt; The perioperative care in the group of patients undergoing ileostomy reversal still lacks standardized and optimized treatment.&lt;/br&gt; &lt;b&gt;&lt;br&gt;Conclusions:&lt;/b&gt; Ileostomy removal is a procedure with high risk of postoperative complications. Standardization of perioperative care based on further multicenter national study could result in a decrease of complications rate.&lt;/br&gt.

Preliminary results of Polish national multicenter study on colostomy reversal - LICO (Liquidation of Colostomy) study.

Creation of colostomy is still a commonly performed procedure in emergency settings, when intestinal anastomosis cannot be performed safely. Reversing a stoma has been linked with high rates of morbidity and also mortality. The primary goal of the study was to identify the risk of postoperative complications in patients undergoing colostomy liquidation. The secondary goal was to assess perioperative care parameters. The LIquidation of COlostomy (LICO) study is an open multicenter prospective cohort study that began in October 2022 and will continue until December 2023. Data from 20 Polish surgical departments were collected. Overall 45 patients were reported over the initial 3 months; based on that group we performed a preliminary analysis. Mean operative time was 163 min. Patients were operated on by specialists in 93.3% of cases. Complications occurred in 15 (33.3%) patients. Wound infection was the most common complication (17.8%). In 3 (6.7%) cases anastomotic leakage was diagnosed, and in 2 of those cases reoperation was required. The overall mortality rate was 2.2%. The mean length of hospital stay was 10.1 days. Preoperative fasting was used in 53.3% of patients, and the mechanical bowel preparation rate was 75.6%. Only in 8.9% of cases was laparoscopic access used for stoma reversal, and only in 1 out of 45 cases was mesh used for incisional peristomal hernia prophylactics. The stoma site was closed by single sutures in 73.3%, and negative pressure assisted closure was performed in 6.7% of patients. Colostomy liquidation is associated with significant morbidity and minor mortality in the Polish population. Standardized perioperative care should be established for stoma reversal surgery.

CONTROVERSIAL ISSUES OF ANTIBIOTIC THERAPY DURATION IN PATIENTS AFTER INJURIES AND SURGERIES ON MUSCULOSKELETAL SYSTEM

Improvements in surgical techniques and the introduction of minimally invasive osteosynthesis technologies have had a beneficial effect on the patient treatment after injuries and surgeries on the musculoskeletal system. However, the problem of treating infectious complications, especially in elderly patients with high comorbidity, has not lost its relevance.&#x0D; The purpose of the paper is to study the effectiveness of antibiotic therapy in elderly patients after injuries and surgeries on the musculoskeletal system in comorbidity.&#x0D; Materials and methods. An open prospective cohort study was conducted with a 12-month follow-up period. We examined 53 elderly and senile patients (24 men and 29 women, average age 69.1±7.3) who were hospitalized. The combined endpoint of treatment outcome was assessed. Comorbidity and duration of antibiotic therapy were determined in all patients. The GerontoNet ADR Risk Score was used to assess the risk of drug therapy complications.&#x0D; Results. The comorbidity index in elderly patients was 4 (3; 5) points. One third of patients (19 people; 35.9 %) had high comorbidity rates. The average number of antibacterial drugs was 2 (1; 2). Total course of administration was 8 (5; 21) days. Therapy duration less than 7 days was observed in 24 (45.3 %) patients. In 13 (24.5 %) patients, the result exceeded 5 points on the GerontoNet scale. During the observation period, a positive result was achieved in 45 (84.9 %) patients. There was no significant difference in achieving positive results based on the duration of antibiotic therapy (p&gt;0.05).&#x0D; Conclusion. The use of long-term systemic antibiotic therapy in elderly patients after injuries and surgeries on the musculoskeletal system does not lead to better results compared to shorter treatment modalities, which help us avoid unwanted side effects and drug interactions, given the high comorbidity of this group of patients.

The role of gestational weight gain in hypertensive disorders of pregnancy: open prospective cohort study

The role of gestational weight gain in hypertensive disorders of pregnancy: open prospective cohort study

Development and validation of a novel risk prediction algorithm to estimate 10-year risk of oesophageal cancer in primary care: prospective cohort study and evaluation of performance against two other risk prediction models.

Methods to identify patients at increased risk of oesophageal cancer are needed to better identify those fortargeted screening. We aimed to derive and validate novel risk prediction algorithms (CanPredict) to estimate the 10-year risk of oesophageal cancer and evaluate performance against two other risk prediction models. Prospective open cohort study using routinely collected data from 1804 QResearch® general practices. We used 1354 practices (12.9M patients) to develop the algorithm. We validated the algorithm in 450 separate practices from QResearch (4.12M patients) and 355 Clinical Practice Research Datalink (CPRD) practices (2.53M patients). The primary outcome was an incident diagnosis of oesophageal cancer found in GP, mortality, hospital, or cancer registry data. Patients were aged 25-84 years and free of oesophageal cancer at baseline. Cox proportional hazards models were used with prediction selection to derive risk equations. Risk factors included age, ethnicity, Townsend deprivation score, body mass index (BMI), smoking, alcohol, family history, relevant co-morbidities and medications. Measures of calibration, discrimination, sensitivity, and specificity were calculated in the validation cohorts. There were 16,384 incident cases of oesophageal cancer in the derivation cohort (0.13% of 12.9M). The predictors in the final algorithms were: age, BMI, Townsend deprivation score, smoking, alcohol, ethnicity, Barrett's oesophagus, hiatus hernia, H.pylori infection, use of proton pump inhibitors, anaemia, lung and blood cancer (with breast cancer in women). In the QResearch validation cohort in women the explained variation (R2) was 57.1%; Royston's D statistic 2.36 (95% CI 2.26-2.46); C statistic 0.859 (95% CI 0.849-0.868) and calibration was good. Results were similar in men. For the 20% at highest predicted risk, the sensitivity was 76%, specificity was 80.1% and the observed risk at 10 years was 0.76%. The results from the CPRD validation were similar. We have developed and validated a novel prediction algorithm to quantify the absolute risk of oesophageal cancer. The CanPredict algorithms could be used to identify high risk patients for targeted screening. Innovate UK and CRUK (grant 105857).

The impact of risk factors for gestational diabetes mellitus on the outcomes of newborns in a Nigerian Teaching Hospital: a prospective open cohort study

The impact of risk factors for gestational diabetes mellitus on the outcomes of newborns in a Nigerian Teaching Hospital: a prospective open cohort study

High-flow oxygen therapy for ventilator weaning patients with tracheostomy cannula

Introduction. To date, information of the use of high-flow oxygen therapy (HFOT) in patients with tracheostomy cannulas is limited. The use of HFOT in this group of patients at the ventilator weaning may improve outcomes.Objective. Improving results of treatment of patients with tracheostomy cannulas with hypoxemic ARF of various origin through the use of HFOT at the ventilator weaning after prolonged mechanical ventilation (MV).Materials and methods. The prospective open cohort study included 50 patients aged 45 (from 37 to 57) years, the duration of invasive mechanical ventilation was 8.68 ± 3.83 days. Patients were randomized into two groups: in group A, weaning from the respirator was performed through a combination of traditional low-flow oxygen therapy (LFO) and assisted modes of MV; in group B – through a combination of HFOT and assisted modes of MV. The groups compared gas exchange rates, the duration of weaning from the respirator, the incidence of complications (pulmonary and extrapulmonary), the duration of treatment, mortality in the ICU and in the hospital. In all patients, the most significant predictors of in-hospital mortality were analyzed.Results. The use of HFOT in patients in group B revealed significant benefits in terms of the studied parameters in the early and late stages of the study. Mortality in the groups did not differ. The most significant risk factors for in-hospital mortality were cannulation after transfer from the OR (OR = 9,667; 95% CI: 2.414–38,713; p = 0,001).Conclusions. The use of HFOT in patients with tracheostomy cannulas is more clinically effective than COT. Risk factors assessment in every patient will allow optimal use HFOT.

Sweden’s first Take-Home Naloxone program: participant characteristics, dose endpoints and predictors for overdose reversals

BackgroundOpioid overdoses are a growing concern, particularly among people who inject drugs. Sweden, with a comparatively high proportion of drug-related mortality, introduced its first Take-Home Naloxone (THN) program in 2018, at the Stockholm needle and syringe program (NSP). In this study we compare THN participant characteristics regarding refills and overdose reversals as well as investigate predictors associated with number of reversals. We also investigate interventions performed in overdose situations and endpoints for naloxone doses.MethodsThis was a prospective open inclusion cohort study conducted between January 24th 2018 and March 31st 2022 at the Stockholm NSP. Participants received THN, free of charge, after a training session and provided data regarding drug use and overdose experiences. During refill visits, participants reported if the naloxone was used for overdose reversal and, if so, responded to a ten-item questionnaire which included stating whether the naloxone recipient was the participant themselves or somebody else. Questionnaire data was combined with NSP database demographic data. Zero-inflated Poisson regression was applied to analyse predictors for number of reported overdose reversals.ResultsAmong study participants (n = 1,295), 66.5% stated opioids as their primary drug, and 61.4% and 81.0% had previous experience of a personal or witnessed overdose, respectively. Overall, 44.0% of participants reported a total of 1,625 overdose reversals and the victim was known to have survived in 95.6% of cases. Stimulant use (aIRR 1.26; 95% CI 1.01, 1.58), benzodiazepine use (aIRR 1.75; 95% CI 1.1, 2.78) and homelessness (aIRR 1.35; 95% CI 1.06, 1.73) were predictors associated with an increased number of reported overdose reversals. Mortality was higher among those who reported at least one overdose reversal (HR 3.4; 95% CI 2.2, 5.2).ConclusionsAn NSP’s existent framework can be utilised to effectively implement a THN program, provide basic training and reach numerous high-risk individuals. During the four-year study, THN participants reversed a sizeable number of potentially fatal overdoses, of which many were reported by participants whose primary drug was not opioids. Naloxone refill rate was high, indicating that participants were motivated to maintain a supply of naloxone in case of future overdose events.

НЕКОТОРЫЕ ГЕНЕТИЧЕСКИЕ МАРКЕРЫ РИСКА ПОСТИНФАРКТНОЙ СЕРДЕЧНОЙ НЕДОСТАТОЧНОСТИ

Вackground. Postinfarction heart failure is a serious complication of myocardial infarction requiring personalized early diagnosis, and in particular, using molecular genetic markers. Purpose of the study. To determine the role of different genotype variants according to polymorphic variants: rs5186 of angiotensin II receptor A1166 C type 1 gene and rs5068 of atrial natriuretic peptide gene in the development of chronic heart failure in postinfarction period. Patient Characterization and Research Methods. An open prospective non-randomized cohort study by parallel-group method included 186 patients (mean age 63.5 years) who underwent myocardial infarction from January 2019 to January 2020 and were treated at the regional vascular center No 1 of City Clinical Hospital No 1 of Novosibirsk. Novosibirsk. The study group consisted of 86 people with signs of CHF above the 2nd class (NYHA) and the comparison group consisted of 100 people without signs of CHF or with CHF of the 1st class (NYHA). The diagnosis of MI and CHF was made according to national and European guidelines [1, 2]. Both groups received standard therapy for these pathologies. Clinical outcomes were assessed 1 year after discharge: cardiovascular mortality, repeated hospitalizations due to CHF decompensation, death from other causes, stroke, recurrent myocardial infarction, unscheduled coronary revascularization. Methods of statistical analysis. Statistical analysis was performed with the help of SPSS 22.0 program modules. Results. There were no statistically significant differences in the frequencies of rs5186 genotypes and alleles of AGTR1 gene between the main group with CHF and the comparison group. Carriage of genotype with the G allele of rs5068 of the NPPA gene was 5.1 times higher in the group with CHF compared with the comparison group by odds ratio (GA + GG vs AA, 95% CI 1.64-16.16; p = 0.003). In women, carriage of the GG and GA genotypes was also associated with an increased odds ratio (OR) of having CHF compared with the AA genotype, OR 5.98 (95% CI 1.24-28.83; p = 0.028). Conclusion: carriage of genotype G allele rs5068 of NPPA gene increases risk of postinfarct chronic heart failure by 5.1 times; rs5186 of AGTR1 gene has no effect on this complication of MI.