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Nevin Manimala Statistics

Antepartum severe maternal morbidity: A population-based study of risk factors and delivery outcomes

Paediatr Perinat Epidemiol. 2021 Dec 29. doi: 10.1111/ppe.12847. Online ahead of print.

ABSTRACT

BACKGROUND: Severe maternal morbidity (SMM) is a key indicator of maternal health. Generally explored without distinction by the timing of the event, it mainly reflects postpartum SMM. Although antepartum (pre-labour) SMM presents specific challenges in its need to optimise the risk-benefit balance for both mother and foetus, its features remain inadequately explored.

OBJECTIVES: We explored risk factors of antepartum SMM and described adverse delivery and neonatal outcomes associated with antepartum SMM.

METHODS: We designed a population-based nested case-control study based on data from the EPIMOMS study (119 maternity hospitals of 6 French regions, 2012-2013, N = 182,309 deliveries in the source cohort). This study included all women with antepartum SMM (cases, n = 601) compared to a randomly selected sample of women who gave birth without SMM in the same hospitals (controls, n = 3651). Antepartum SMM risk factors were identified with multivariable logistic regression following imputations for missing data.

RESULTS: Antepartum SMM complicated 0.33% (95% confidence interval [CI] 0.30, 0.36) of pregnancies. Antepartum SMM risk factors were maternal age ≥35 years (adjusted odds ratio [OR] 1.55, 95% CI 1.22, 1.97), increased body mass index (OR for 5 kg/m2 increase, 1.24, 95% CI 1.14, 1.36), maternal birth in sub-Saharan Africa (OR 1.80, 95% CI 1.29, 2.53), pre-existing medical condition (OR 2.56, 95% CI 1.99, 3.30), nulliparity (OR 2.26, 95% CI 1.83, 2.80), previous pregnancy-related hypertensive disorders (OR 4.94, 95% CI 3.36, 7.26), multiple pregnancy (OR 5.79, 95% CI 3.75, 7.26), irregular prenatal care (OR 1.86, 95% CI 1.27, 2.72). For women with antepartum SMM, preterm delivery, neonatal mortality and transfer to the neonatal intensive care unit were 10 times more frequent than for controls. Emergency caesarean and general anaesthesia were more frequent in women with antepartum SMM.

CONCLUSIONS: Antepartum SMM is rare but associated with increased rates of adverse delivery and neonatal outcomes.

PMID:34964499 | DOI:10.1111/ppe.12847

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The effectiveness of preoperative education interventions on improving perioperative outcomes of adult patients undergoing cardiac surgery: a systematic review and meta-analysis

Eur J Cardiovasc Nurs. 2021 Dec 29:zvab123. doi: 10.1093/eurjcn/zvab123. Online ahead of print.

ABSTRACT

BACKGROUND: Cardiac surgeries pose as an emotional experience for patients. Preoperative education is known to positively alter people’s perceptions, emotions, and mitigate surgical distress. However, this intervention’s effectiveness in improving perioperative outcomes among patients undergoing cardiac surgery lacked rigorous statistical synthesis and remains inconclusive.

AIMS: The aim was to synthesize the effectiveness of preoperative education on improving perioperative outcomes [anxiety, depression, knowledge, pain intensity, pain interference with daily activities, postoperative complications, length of hospitalization, length of intensive care unit (ICU) stay, satisfaction with the intervention and care, and health-related quality of life] among patients undergoing cardiac surgery.

METHODS: This systematic review and meta-analysis conducted a comprehensive search of nine electronic databases (PubMed, EMBASE, Scopus, MEDLINE, CINAHL, Cochrane CENTRAL, Web of Science, PsycINFO, and ERIC) and grey literature for randomized controlled trials examining the preoperative educational interventional effects on patients undergoing cardiac surgery from inception to 31 December 2020. The studies’ quality was evaluated using Cochrane Risk-of-Bias Tool 1 (RoB1). Meta-analyses via RevMan 5.4 software synthesized interventional effects.

RESULTS: Twenty-two trials involving 3167 participants were included. Preoperative education had large significant effects on reducing post-intervention preoperative anxiety (P = 0.02), length of ICU stay (P = 0.02), and improving knowledge (P < 0.00001), but small significant effect sizes on lowering postoperative anxiety (P < 0.0001), depression (P = 0.03), and enhancing satisfaction (P = 0.04).

CONCLUSIONS: This review indicates the feasibility of preoperative education in clinical use to enhance health outcomes of patients undergoing cardiac surgery. Future studies need to explore knowledge outcomes in-depth and more innovative technologies in preoperative education delivery.

PMID:34964470 | DOI:10.1093/eurjcn/zvab123

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Comparative effectiveness of ventricular tachycardia ablation vs. escalated antiarrhythmic drug therapy by location of myocardial infarction: a sub-study of the VANISH trial

Europace. 2021 Dec 29:euab298. doi: 10.1093/europace/euab298. Online ahead of print.

ABSTRACT

AIMS: Complexity of the ventricular tachycardia (VT) substrate and the size and thickness of infarction area border zones differ based on location of myocardial infarctions (MIs). These differences may translate into heterogeneity in the effectiveness of treatments. This study aims to examine the influence of infarct location on the effectiveness of VT ablation in comparison with escalated pharmacological therapy in patients with prior MI and antiarrhythmic drug (AAD)-refractory VT.

METHODS AND RESULTS: VANISH trial participants were categorized based on the presence or absence of an inferior MI scar. Inverse probability of treatment weighted Cox models were calculated for each subgroup. Of 259 randomized patients (median age 69.8 years, 7.0% women), 135 had an inferior MI and 124 had a non-inferior MI. Among patients with an inferior MI, no statistically significant difference in the composite primary outcome of all-cause mortality, appropriate implantable cardioverter-defibrillator (ICD) shock, and VT storm was detected between treatment arms [adjusted hazard ratio (aHR) 0.80, 95% confidence interval (CI) 0.51-1.20]. In contrast, patients with non-inferior MIs had a statistically significant reduction in the incidence of the primary outcome with ablation (aHR 0.48, 95% CI 0.27-0.86). In a sensitivity analysis of anterior MI patients (n = 83), a trend towards a reduction in the primary outcome with ablation was detected (aHR 0.50, 95% CI 0.23-1.09).

CONCLUSION: The effectiveness of VT ablation versus escalated AADs varies based on the location of the MI. Patients with MI scars located only in non-inferior regions of the ventricles derive greater benefit from VT ablation in comparison to escalation of AADs in reducing VT-related events.

PMID:34964475 | DOI:10.1093/europace/euab298

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Predictors of recurrence of venous thromboembolic disease after discontinuing of anticoagulation: a prospective cohort study

Medwave. 2021 Dec 28;21(11):e8504. doi: 10.5867/medwave.2021.11.002068.

ABSTRACT

OBJECTIVE: We aim to evaluate factors associated with the recurrence of thromboembolic episodes among patients with a first episode of venous thromboembolic disease during anticoagulation treatment and at least one year after treatment suspension.

METHODS: A prospective cohort of patients with a first episode of deep vein thrombosis confirmed by Doppler ultrasound and initiated anticoagulation treatment. Participants were registered in the Institutional Registry of Thromboembolic Disease between June 2015 and March 2019. Patients with cancer, with permanent inferior vena cava filter implant, and those who refused to participate or did not provide informed consent were excluded. All patients were evaluated within treatment at 30 days and at least one year after the suspension of anticoagulation with a D-dimer study and an ultrasound. All patients were evaluated for recurrence, bleeding (major and minor), and death.

RESULTS: A total of 304 patients were recruited during the study period. Seventy-three percent were female, and the median age was 80 years. The rate of recurrence rate during anticoagulation treatment was 5% (N = 16/303; 95% confidence interval: 3 to 8), and 5% during post-suspension follow-up (N = 11/202; 95%CI: 3 to 9). The overall bleeding rate was 13% (N = 39; 95%CI: 9 to 17), and 5% for major bleeding. Patients who recurred had higher basal D-dimer mean, higher neutrophils and monocytes, and a higher prevalence of age-adjusted D-dimer ratio greater than 0.5 before discontinuation. In addition, they more frequently had complete leg involvement by ultrasound and received a shorter treatment.

CONCLUSIONS: Although some baseline and pre-suspension parameters had a higher recurrence incidence, statistical significance was not reached, probably due to small statistical power and a short-term follow-up.

PMID:34964447 | DOI:10.5867/medwave.2021.11.002068

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Genome-wide association study of mitochondrial copy number

Hum Mol Genet. 2021 Nov 23:ddab341. doi: 10.1093/hmg/ddab341. Online ahead of print.

ABSTRACT

Mitochondrial DNA copy number (mtDNAcn) variation has been associated with increased risk of several human diseases in epidemiological studies. The quantification of mtDNAcn performed with real-time PCR is currently considered the de facto standard among several techniques. However, the heterogeneity of the laboratory methods (DNA extraction, storage, processing) used could give rise to results that are difficult to compare and reproduce across different studies. Several lines of evidence suggest that mtDNAcn is influenced by nuclear and mitochondrial genetic variability, however this relation is largely unexplored. The aim of this work was to elucidate the genetic basis of mtDNAcn variation. We performed a genome-wide association study (GWAS) of mtDNAcn in 6836 subjects from the ESTHER prospective cohort, and included, as replication set, the summary statistics of a GWAS that used 295 150 participants from the UK Biobank. We observed two novel associations with mtDNAcn variation on chromosome 19 (rs117176661), and 12 (rs7136238) that reached statistical significance at the genome-wide level. A polygenic score that we called mitoscore including all known single nucleotide polymorphisms explained 1.11% of the variation of mtDNAcn (p = 5.93 × 10-7). In conclusion, we performed a GWAS on mtDNAcn, adding to the evidence of the genetic background of this trait.

PMID:34964454 | DOI:10.1093/hmg/ddab341

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Neurophysiological profiles of responders and non-responders to hypoglossal nerve stimulation: a single institution study

J Clin Sleep Med. 2021 Dec 30. doi: 10.5664/jcsm.9852. Online ahead of print.

ABSTRACT

STUDY OBJECTIVES: Hypoglossal nerve stimulation (HGNS) is an effective alternative treatment for obstructive sleep apnea (OSA) that acts by opening the airway via selective stimulation of nerve fibers that innervate tongue muscles that protrude (genioglossus) and stiffen the tongue (transverse and vertical) while avoiding nerve fibers that innervate tongue muscles that retract the tongue (styloglossus and hyoglossus). There remains a subset of post-operative patients who fail to adequately respond to HGNS, in some cases due to simultaneous mixed activation of muscles that protrude and retract the tongue. This study aims to characterize the relationship between neurophysiological data from individual tongue muscle activation during intraoperative electromyographic (EMG) recordings and post-operative AHI responses to HGNS..

METHODS: A single institution review of 46 patients undergoing unilateral HGNS implantation for OSA. Patients were separated into responders and non-responders through comparison of pre and postoperative AHI. Neurophysiological data included EMG responses of the genioglossus, styloglossus/hyoglossus, intrinsic/vertical, and hyoglossus (neck) muscles to intraoperative stimulation using unipolar (— and o-o) and bipolar (+-+) settings.

RESULTS: The overall treatment success rate was 61% as determined by a post-operative AHI <20 events/hr with a greater than 50% AHI reduction. We observed no statistically significant relationships between treatment response and individual muscle responses. However, we did note that increasing BMI was correlated with worse post-operative responses.

CONCLUSIONS: Although we noted a significant sub-group of clinical non-responders to HGNS post-operatively, these patients were not found to exhibit significant inclusion of tongue retractors intraoperatively on neurophysiological analysis. Further research is needed to delineate additional phenotypic factors that may contribute to HGNS treatment responses.

PMID:34964435 | DOI:10.5664/jcsm.9852

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Nevin Manimala Statistics

Factors Associated With Noninfectious Fever After Endovascular Aortic Aneurysm Repair

J Endovasc Ther. 2021 Dec 29:15266028211065966. doi: 10.1177/15266028211065966. Online ahead of print.

ABSTRACT

PURPOSE: The post-endovascular abdominal aortic aneurysm repair (EVAR) inflammatory response, which is very often associated with fever, has been ascribed to a wide range of proinflammatory mediators and operative events. The aim of this study was to evaluate the impact of such factors in the development of fever of noninfectious origin after elective EVAR.

MATERIALS AND METHODS: A retrospective analysis of prospectively collected data of patients treated with standard elective EVAR between February 2017 and December 2020 was undertaken. The database included patients’ demographics and comorbidities, as well as laboratory inflammatory markers (white blood cell count, neutrophils, and C-reactive protein [CRP]) and anatomical characteristics (sac diameter, inferior mesenteric artery [IMA] patency and diameter, number of patent lumbar arteries, internal iliac artery [IIA] patency or occlusion). Intraoperative details, such as type of stent graft material and IIA overstenting, were also analyzed. Patients with infectious postoperative complications or previously receiving systemic anti-inflammatory medication were excluded. Statistical analysis was performed by SPSS 22.0 for Windows software (IBM Corp, Armonk, New York).

RESULTS: From 332 patients treated with elective EVAR between 2017 and 2020, 268 patients (all men) were included in the analysis. The mean age was 72.1±7.5 years and the mean aneurysm diameter was 59.1±12.1 mm. Seventeen patients were excluded due to a known infection site. From the study cohort, 114 (42.5%) patients presented with fever. Multivariate regression analysis confirmed that the occlusion of IMA ≥5 mm (p<0.008) and higher CRP (p<0.001) were independent factors associated with postoperative fever. A subanalysis was performed only on patients with patent IMA before EVAR. In the multivariate regression analysis of this subgroup, IMA ≥5 mm (p=0.008), presence of dyslipidemia (p=0.037), and higher CRP (p<0.001) were related to fever.

CONCLUSION: Occlusion of an existing wide (≥5 mm) and patent IMA prior to EVAR may contribute to the development of post-EVAR pyrexia. The CRP is a reliable marker for post-EVAR fever. Further prospective studies are needed to corroborate these findings.

PMID:34964389 | DOI:10.1177/15266028211065966

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Impacts of Economic Freedom, Health, and Social Expenditures on Well-Being Measured by the Better Life Index in OECD Countries

Soc Work Public Health. 2021 Dec 29:1-13. doi: 10.1080/19371918.2021.2018083. Online ahead of print.

ABSTRACT

The Organization for Economic Co-operation and Development (OECD) has developed the Better Life Index (BLI), which is a multidimensional approach to well-being. This study aims to investigate the impact of health and social expenditures as well as the economic freedom index on well-being measured by BLI among 34 OECD countries for 2013-2017 period. We estimated panel models to observe the social and health expenditure effects according to their sources and the overall impact of economic changes among countries. We find that public and private social expenditures have a positive and statistically significant impact on BLI at 1% significance level. Additionally, whereas public health expenditure has a positive and statistically significant impact on BLI at 1% significance level, the effects of private health expenditure are statistically significant at 10% significance level. The economic freedom index has a positive and statistically significant impact on BLI in both models. Both social and health expenditures should take a prominent position in policy debates for a better life.

PMID:34964427 | DOI:10.1080/19371918.2021.2018083

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Possibilities of therapeutic correction of ENT pathology associated with COVID-19 in children on an outpatient basis

Vestn Otorinolaringol. 2021;86(6):69-73. doi: 10.17116/otorino20218606169.

ABSTRACT

OBJECTIVE: To evaluate the therapeutic and preventive efficacy of the drug with antiviral and immunotropic activity Cytovir-3 in children with COVID-19 on an outpatient basis.

MATERIAL AND METHODS: A retrospective analysis the treatment of 52 pediatric patients aged 1 to 17 years with a confirmed new coronavirus infection SARS-CoV-2 with the drug Cytovir-3 was carried out. 28 people, contacts in the family, received the drug for prophylactic purposes. Clinical observation of patients was carried out with an assessment of the severity and duration of fever, the anosmia, catarrhal symptoms in the nasopharynx and analysis indicator of saturation. In the control group, there were 27 patients of the same age who received the medicine Umifenovir and 25 contact family members who did not receive the medicine for prophylactic purposes.

RESULTS: The use of Cytovir-3 in the COVID-19 treatment in children led to a decrease in intoxication symptoms 3.2-3.4 days after taking the medicine, a significant reduction of anosmia period recovery time, and elimination of the pathogen according to PCR analysis. The patients receiving the drug did not have ENT- complications and did not require hospitalization. Prophylactic administration of the drug in contact family members statistically significantly reduced the likelihood of developing the disease 3.6 times. The clinical efficacy and feasibility of using Cytovir-3 in the treatment and prevention of new coronavirus infection in patients of different ages has been shown.

PMID:34964333 | DOI:10.17116/otorino20218606169

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Endoscopic endonasal reconstruction of skull base defects in the lateral recess of the sphenoid sinus: evaluation of computed tomograms for planning operations

Vestn Otorinolaringol. 2021;86(6):74-81. doi: 10.17116/otorino20218606174.

ABSTRACT

OBJECTIVE: Determine the influence of the anatomical features and sizes of the lateral pocket with a defect on the choice of surgical access and the quality of the performed plastics.

MATERIAL AND METHODS: A retrospective analysis of computed tomograms of 38 patients who underwent surgical treatment at the Burdenko National Medical Research Center for Neurosurgery of the Ministry of Health of Russia about defects of the skull base in the area of the lateral pocket of the sphenoid sinus. The patients were divided into three groups depending on the approach used (the 1st group), the recurrence rate (the 2nd group), and the characteristics of intraoperative visualization of the defect (the 3rd group).

RESULTS: There were no statistically significant differences in anatomical features in patients who underwent trans-pterygoid and transsphenoidal approaches, as well as in patients of the 2nd group. Patients of the 3rd group (with visualization features) showed statistically significant differences between the distance from the defect to the VR line (p=0.007). In patients with good visualization of the defect using direct optics, this distance was shorter than in patients in whom the defect was visualized with an angled endoscope. No other anatomical differences were noted.

CONCLUSIONS: The anatomical features of the lateral pocket structure (type of pneumatization, size and volume) did not affect the choice of access to the defect and the frequency of recurrence. When comparing the approaches, it was noted that the trans-pterygoid access, providing direct visualization of defects, minimizes the risk of recurrence in the postoperative period. An objective anatomical indicator for choosing an access to the defects of the lateral pocket can be the distance from the defect to the VR line: at a distance of more than 0.7 cm, it is advisable to perform a trans-pterygoid approach; at a distance of less than 0.7 cm, it is possible to achieve direct visualization of the defect and perform high-quality plastic surgery with a transsphenoidal access.

PMID:34964334 | DOI:10.17116/otorino20218606174