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1.
Food Chem ; 463(Pt 1): 141060, 2024 Sep 02.
Artículo en Inglés | MEDLINE | ID: mdl-39241421

RESUMEN

Ion pair-based surfactant-assisted liquid-liquid microextraction with solidification of floating organic drops has been developed to extract Allura red (AR), tartrazine (TAR), and fast green (FG) prior to spectrophotometric determination. Cetyltrimethylammonium bromide (CTAB) was employed as ion-pairing agent to enhance the hydrophobic behavior of anionic dyes. 1-undecanol and ethanol were used as the extraction and dispersion solvents, respectively. The dyes were quantitatively extracted in the presence of KCl (0.15 mol L-1) at pH 4.0. The method exhibits wide linearity (15.0-1500.0 µg L-1 for AR, 35.0-2000.0 µg L-1 for TAR, and 3.0-1200.0 µg L-1 for FG) with preconcentration factors of 19.6, 20.1, and 19.9, respectively. The detection limit was 3.7. 9.5, and 0.83 µg L-1 for AR, TAR, and FG, respectively. The relative standard deviation did not exceed 2.1 %. The procedure was applied for the determination of these dyes in food samples.

2.
Expert Rev Med Devices ; 21(8): 755-764, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-39087797

RESUMEN

INTRODUCTION: Cardiogenic shock (CS) is a complex life-threatening condition that results from primary cardiac dysfunction, leading to persistent hypotension and systemic hypoperfusion. Among the therapeutic options for CS are various percutaneous mechanical circulatory support (MCS) devices that have emerged as an increasingly effective hemodynamic support option. Percutaneous therapies can act as short-term mechanical circulatory assistance and can be split into intra-aortic balloon pump (IABP) and non-IABP percutaneous mechanical devices. AREAS COVERED: This review will evaluate the MCS value while considering the mortality rate improvements. We also aim to outline the function of pharmacotherapies and percutaneous hemodynamic MCS devices in managing CS patients to avoid the onset of end-organ dysfunction and improve both early and late outcomes. EXPERT OPINION: Given the complexity, acuity and high mortality associated with CS, and despite the availability and efficacy of pharmacological management, MCS is required to achieve hemodynamic stability and improve survival. Various percutaneous MCS devices are available with varying indications and clinical outcomes. The rates of early mortality and complications were found to be comparable between the four devices, yet, IABP seemed to show the most optimal clinical profile whilst ECMO demonstrated its more long-term efficacy.


Asunto(s)
Hemodinámica , Contrapulsador Intraaórtico , Choque Cardiogénico , Humanos , Choque Cardiogénico/terapia , Contrapulsador Intraaórtico/instrumentación , Corazón Auxiliar , Oxigenación por Membrana Extracorpórea/instrumentación
3.
Ann Vasc Surg ; 109: 162-176, 2024 Jul 14.
Artículo en Inglés | MEDLINE | ID: mdl-39004278

RESUMEN

BACKGROUND: Blunt thoracic aortic injury (BTAI) represents one of the most devastating scenarios of vascular trauma. Different management strategies are available with varying clinical outcomes. However, thoracic endovascular aortic repair (TEVAR) has become the first-line option for most BTAI patients, mainly owing to its minimally invasive nature, yielding improved immediate results. This meta-analysis aims to investigate mortality, long-term survival, and reintervention following TEVAR in BTAI. MATERIAL AND METHODS: A systematic review conducted a comprehensive literature search on multiple electronic databases using strict search terms. Twenty-seven studies met the set inclusion/exclusion criteria. A proportional meta-analysis of extracted data was conducted using the Comprehensive Meta-Analysis Software, v.4. RESULTS: 1498 BTAI patients who underwent TEVAR were included. Using the SVS grading system, 2.6% of the population had Grade 1 injuries, 13.6% Grade 2, 62.2% Grade 3, 19.6% Grade 4, and 1.9% unspecific. All-cause mortality did not exceed 20% in all studies except one outlier with a 37% mortality rate. Using the random effects model, the pooled estimate of overall mortality was 12% (95% confidence interval [CI], 5.35-8.55%; I2 = 70.6%). This was 91% (95% CI, 88.6-93.2; I2 = 30.2%) at 6 months, 90.1% (95% CI, 86.7-92.3; I2 = 53.6%) at 1 year, 89.2% (95% CI, 85.2-91.8; I2 = 62.3%) at 2 years, and 88.1% (95% CI, 83.3-90.9; I2 = 69.6%) at 5 years. Moreover, the pooled estimate of reintervention was 6.4% (95% CI, 0.1-0.49%; I2 = 81.7%). CONCLUSIONS: Despite the high morbidity and mortality associated with BTAI, TEVAR has proven to be a safe and effective management strategy with favorable long-term survival and minimal need for reintervention. Nevertheless, diagnosis of BTAI requires a high index of suspicion with appropriate grading and prompt transfer to trauma centers with appropriate TEVAR facilities.

4.
Am J Cardiol ; 223: 165-173, 2024 07 15.
Artículo en Inglés | MEDLINE | ID: mdl-38777209

RESUMEN

Non-ST-segment elevation myocardial infarction (NSTEMI) is a leading cause of emergency hospitalization across Europe. This study evaluates the in-hospital and mid-term outcomes of patients who underwent coronary artery bypass graft (CABG) after NSTEMI. A retrospective analysis of all cases who underwent isolated CABG after NSTEMI from September 2017 to September 2022 at our center. Patients were stratified according to in-hospital survival. Patient characteristics, operative details, and procedural complications were compared between those who survived and those who did not. Predictors of in-hospital and mid-term mortality were evaluated using logistic and Cox regression modeling. Kaplan-Meier analysis was used to generate a survival curve for all alive patients at the time of discharge. Among 1,011 patients (median age 64 [56 to 72] years, 852 [84.3%] male), 735 (72.7%) underwent urgent, 239 (23.6%) elective, and 37 (3.7%) emergency CABG. The in-hospital mortality was 1.5% (15/1,011 patients). Those who died were more likely to be New York Heart Association class III/IV, have left ventricular ejection fraction <21%, severe renal impairment, peripheral vascular disease (PVD), or poor mobility. Emergency procedures, preoperative ventilation, inotropic support, and intra-aortic balloon pump (IABP) use were also more prevalent among those who died. Logistic regression modeling revealed new postoperative stroke (odds ratio 22.0, 95% confidence interval 3.6 to 135.5, p = 0.001), preoperative IABP use (11.4; 2.4 to 53.7, p = 0.002), new hemodialysis (9.6; 2.7 to 34.7, p <0.001), PVD (5.6; 1.6 to 20.0, p = 0.008), and poor mobility (odds ratio 4.8, 95% confidence interval 1.3 to 18.2, p = 0.022) as independent predictors of in-hospital mortality. In conclusion, new postoperative stroke, preoperative IABP use, new hemodialysis, PVD, and poor mobility are independent predictors of mortality in patients with NSTEMI who underwent isolated CABG.


Asunto(s)
Puente de Arteria Coronaria , Mortalidad Hospitalaria , Infarto del Miocardio sin Elevación del ST , Humanos , Masculino , Femenino , Anciano , Mortalidad Hospitalaria/tendencias , Persona de Mediana Edad , Estudios Retrospectivos , Infarto del Miocardio sin Elevación del ST/cirugía , Infarto del Miocardio sin Elevación del ST/mortalidad , Complicaciones Posoperatorias/epidemiología , Tasa de Supervivencia/tendencias , Factores de Riesgo
5.
Sensors (Basel) ; 24(7)2024 Apr 07.
Artículo en Inglés | MEDLINE | ID: mdl-38610565

RESUMEN

This paper presents a comprehensive exploration of a hybrid energy system that integrates wind turbines with photovoltaics (PVs) to address the intermittent nature of electricity production from these sources. The necessity for such technology arises from the sporadic nature of electricity generated by PV cells and wind turbines. The envisioned outcome is an emissions-free, more efficient alternative to traditional energy sources. A variety of optimization techniques are utilized, specifically the Particle Swarm Optimization (PSO) algorithm and Electric Eel Foraging Optimization (EEFO), to achieve optimal power regulation and seamless integration with the public grid, as well as to mitigate anticipated loading issues. The employed mathematical modeling and simulation techniques are used to assess the effectiveness of EEFO in optimizing the operation of grid-connected PV and wind turbine hybrid systems. In this paper, the optimization methods applied to the system's architecture are described in detail, providing a clear understanding of the intricate nature of the approach. The efficacy of these optimization strategies is rigorously evaluated through simulations of diverse operating scenarios using MATLAB/SIMULINK. The results demonstrate that the proposed optimization strategies are not only capable of precisely and swiftly compensating for linked loads, but also effectively controlling the energy supply to maintain the load's power at the desired level. The findings underscore the potential of this hybrid energy system to offer a sustainable and reliable solution for meeting power demands, contributing to the advancement of clean and efficient energy technologies. The results demonstrate the capability of the proposed approach to improve system performance, maximize energy yield, and enhance grid integration, thereby contributing to the advancement of renewable energy technologies and sustainable energy systems.

6.
Diagnostics (Basel) ; 14(8)2024 Apr 11.
Artículo en Inglés | MEDLINE | ID: mdl-38667452

RESUMEN

Background and Objectives: The availability of multiple dental implant systems makes it difficult for the treating dentist to identify and classify the implant in case of inaccessibility or loss of previous records. Artificial intelligence (AI) is reported to have a high success rate in medical image classification and is effectively used in this area. Studies have reported improved implant classification and identification accuracy when AI is used with trained dental professionals. This systematic review aims to analyze various studies discussing the accuracy of AI tools in implant identification and classification. Methods: The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were followed, and the study was registered with the International Prospective Register of Systematic Reviews (PROSPERO). The focused PICO question for the current study was "What is the accuracy (outcome) of artificial intelligence tools (Intervention) in detecting and/or classifying the type of dental implant (Participant/population) using X-ray images?" Web of Science, Scopus, MEDLINE-PubMed, and Cochrane were searched systematically to collect the relevant published literature. The search strings were based on the formulated PICO question. The article search was conducted in January 2024 using the Boolean operators and truncation. The search was limited to articles published in English in the last 15 years (January 2008 to December 2023). The quality of all the selected articles was critically analyzed using the Quality Assessment and Diagnostic Accuracy Tool (QUADAS-2). Results: Twenty-one articles were selected for qualitative analysis based on predetermined selection criteria. Study characteristics were tabulated in a self-designed table. Out of the 21 studies evaluated, 14 were found to be at risk of bias, with high or unclear risk in one or more domains. The remaining seven studies, however, had a low risk of bias. The overall accuracy of AI models in implant detection and identification ranged from a low of 67% to as high as 98.5%. Most included studies reported mean accuracy levels above 90%. Conclusions: The articles in the present review provide considerable evidence to validate that AI tools have high accuracy in identifying and classifying dental implant systems using 2-dimensional X-ray images. These outcomes are vital for clinical diagnosis and treatment planning by trained dental professionals to enhance patient treatment outcomes.

7.
Bioinformation ; 20(1): 59-64, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38352910

RESUMEN

The association between asthma and periodontitis is of interest. 20 periodontitis patients with asthma (asthma group) and 20 patients without asthma (non-asthma group) were included based on inclusion and inclusion criteria. Periodontitis was classified according to 2017 periodontal classification and periodontal parameters such as tooth loss, pocket depth, clinical attachment loss, alveolar bone loss, bone reduction index, plaque index, bleeding index and periodontal risk were assessed. Effect of anti-asthmatic drugs and asthma control on periodontal parameters was also assessed. Inter-group comparison of all the continuous variables was done using independent "t" test. Comparison of categorical variables was done using Chi-square test. P value <0.05 was considered statistically significant. Results showed greater severity and higher grade of periodontitis with asthma group as well as with patients on anti-asthmatic drugs and patients with poor controlled asthma. Hence, there is an association between asthma and periodontitis.

8.
Eur Heart J Qual Care Clin Outcomes ; 10(1): 14-24, 2024 Jan 12.
Artículo en Inglés | MEDLINE | ID: mdl-37873664

RESUMEN

AIMS: Surgical ablation of atrial fibrillation (AF) has been demonstrated to be a safe procedure conducted concomitantly alongside cardiac surgery. However, there are conflicting guideline recommendations surrounding indications for surgical ablation. We conducted a systematic review of current recommendations on concomitant surgical AF ablation. METHODS AND RESULTS: We identified publications from MEDLINE and EMBASE between January 2011 and December 2022 and additionally searched Guideline libraries and websites of relevant organizations in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Of 895 studies screened, 4 were rigorously developed (AGREE-II > 50%) and included. All guidelines agreed on the definitions of paroxysmal, persistent, and longstanding AF based on duration and refraction to current treatment modalities. In the Australia-New Zealand (CSANZ) and European (EACTS) guidelines, opportunistic screening for patients >65 years is recommended. The EACTS recommends systematic screening for those aged >75 or at high stroke risk (Class IIa, Level B). However, this was not recommended by American Heart Association or Society of Thoracic Surgeons guidelines. All guidelines identified surgical AF ablation during concomitant cardiac surgery as safe and recommended for consideration by a Heart Team with notable variation in recommendation strength and the specific indication (three guidelines fail to specify any indication for surgery). Only the STS recommended left atrial appendage occlusion (LAAO) alongside surgical ablation (Class IIa, Level C). CONCLUSION: Disagreements exist in recommendations for specific indications for concomitant AF ablation and LAAO, with the decision subject to Heart Team assessment. Further evidence is needed to develop recommendations for specific indications for concomitant AF procedures and guidelines need to be made congruent.


Asunto(s)
Fibrilación Atrial , Procedimientos Quirúrgicos Cardíacos , Accidente Cerebrovascular , Cirugía Torácica , Estados Unidos , Humanos , Fibrilación Atrial/complicaciones , Fibrilación Atrial/cirugía , Accidente Cerebrovascular/etiología , Accidente Cerebrovascular/prevención & control , Australia
9.
Ann Vasc Surg ; 99: 320-331, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-37866676

RESUMEN

BACKGROUND: Since its introduction, thoracic endovascular aortic repair (TEVAR) has revolutionized the treatment of type B aortic dissections (TBADs). However, the proximal aspect of the aortic pathology treated may infringe on the origin of the left subclavian artery or even more proximally. Hence, to ensure durable outcomes, the origin of these vessels needs to be covered, but an extra-anatomical bypass is required to perfuse vital branches, known as aortic arch debranching. This series aims to describe and delineate the disparities of aortic arch debranching during TEVAR for TBAD. METHODS: A retrospective review and analysis of a multicenter international database was conducted to identify patients with TBAD treated with TEVAR between 2005 and 2021. Data analyzed included patient demographics, disease characteristics, operative characteristics, and postoperative outcomes with follow-up on mortality and reintervention. All statistical analyses were carried out using IBM SPSS 26. Patient survival was calculated using a Kaplan-Meier survival analysis, and a P value of less than 0.05 was considered statistically significant. RESULTS: A total of 58 patients were included in the analysis, of which 27 (46.6%) presented with complicated disease and 31 were uncomplicated, of which 10 (17.2%) were classed as high risk and 21 (36.2%) low risk. Zone 2 was the most common proximal landing zone for the stent graft. Left subclavian artery bypass was performed selectively (26%), with 1 stroke occurring, likely due to embolic reasons. A further 6 underwent more proximal aortic debranching before TEVAR (10%) and was a significant risk factor for mortality and the number of stents deployed. The overall rates of reintervention and mortality were 17.2% (n = 10) and 29.3% (n = 17). CONCLUSIONS: Aortic arch debranching and TEVAR for TBAD is associated with significant mortality. Future developments to treat aortic arch pathology could incorporate branched graft devices, eliminating the need for debranching, improving stroke rates, and reducing future reinterventions.


Asunto(s)
Aneurisma de la Aorta Torácica , Disección Aórtica , Implantación de Prótesis Vascular , Procedimientos Endovasculares , Accidente Cerebrovascular , Humanos , Aorta Torácica/diagnóstico por imagen , Aorta Torácica/cirugía , Reparación Endovascular de Aneurismas , Prótesis Vascular , Aneurisma de la Aorta Torácica/diagnóstico por imagen , Aneurisma de la Aorta Torácica/cirugía , Resultado del Tratamiento , Disección Aórtica/diagnóstico por imagen , Disección Aórtica/cirugía , Stents , Factores de Riesgo , Estudios Retrospectivos
10.
Biol Trace Elem Res ; 202(2): 410-422, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-37191760

RESUMEN

Contradictory results are existed in the literature regarding the impact of trace elements on the pathogenesis of calcium oxalate (CaOx) stone patients. Therefore, the aim of our study was to investigate the effect of Cu and Zn on biochemical and molecular characteristics of CaOx stones. Plasma and urine concentrations of Cu and Zn in 30 CaOx stones patients and 20 controls were determined by flame atomic absorption spectrometry (FAAS). Urinary levels of citric acid and oxalate were measured by commercial spectrophotometric kits. Blood levels of glutathione reduced (GSH) and catalase (CAT) were determined as markers of antioxidant activity, while blood malondialdehyde (MDA) and urine level of nitric oxide (NO) were used to assess oxidative stress. Gene expression of MAPk pathway (ERK, P38, and JNK) were estimated. The plasma and urine levels of Cu were significantly increased in the patient group compared to those of controls, while the levels of Zn were decreased. Excessive urinary excretion of citric acid and oxalate were found among CaOx stone patients. The GSH and CAT concentration were significantly reduced in CaOx stones patients compared to healthy group. The plasma MDA and urine NO concentration were significantly increased in CaOx stones patients compared to control group. The expressions of the studied genes were significantly increased in CaOx stones patients. These findings suggest that alteration in Cu and Zn might contribute to pathogenesis of CaOx patients through oxidative stress and MAPK pathway genes (ERK, P38 and JNK).


Asunto(s)
Oxalato de Calcio , Cálculos Renales , Humanos , Oxalato de Calcio/orina , Cobre , Zinc , Oxalatos , Ácido Cítrico , Iones
11.
Biol Trace Elem Res ; 2023 Dec 11.
Artículo en Inglés | MEDLINE | ID: mdl-38072891

RESUMEN

Heavy metal toxicity is associated with cancer progression. Studies have reported the relation between some metal ions and bladder cancer (BC). Direct influence of such agents in bladder carcinogenesis is still needed. Total 49 BC patients were included in the study. Level of Pb, Cr, Hg and Cd, oxidative stress markers, and gene expression of Bcl-2, Bax, IL-6, AKT, and P38 genes were detected in cancer and non-cancerous tissues obtained from bladder cancer patients. Concentrations of Pb, Cr, and Cd were significantly elevated in cancer tissues than normal, while Hg level was significantly increased in normal tissue than cancer. MDA level was significantly higher and SOD activity was lower in the cancer tissues compared to non-cancerous. The expressions of Bcl-2, IL-6, AKT, and P38 were significantly increased in the cancer tissues than in normal tissues while Bax level was significantly increased in non-cancerous tissue than in cancer tissue. In cancer tissue, there were significant correlations between Cr level with expression of Bax, AKT, and P38 while Cd level was significantly correlate with Bax, IL-6, AKT, and P38expression. The correlation between Cr and Cd with the expression of Bax, IL-6, AKT, and P38 may indicate a carcinogenic role of these metals on progression of bladder cancer.

12.
J Endourol ; 37(12): 1305-1313, 2023 12.
Artículo en Inglés | MEDLINE | ID: mdl-37767632

RESUMEN

Objectives: To assess the ideal interval between repeated extracorporeal shockwave lithotripsy (SWL) for renal stones. Patient and Methods: Eligible patients with a single renal stone ≤20 mm who required SWL were randomly assigned to one of three groups based on intervals between first and second sessions. Patients underwent the second session after 3, 7, and 14 days in Groups 1, 2, and 3, respectively. Tubular functions were assessed through comparisons of urinary execration of kidney injury molecule-1 (KIM-1), neutrophil gelatinase associated lipocalin (NGAL), and interleukin-18 (IL-18) with pre-SWL values, whereas glomerular function was assessed by comparisons of protein/creatinine ratio with pre-SWL and changes in ipsilateral renal function on isotope scans. Treatment success was assessed by noncontrast CT after 3 months. Results: All demographics of the 166 patients included in the study were comparable between the three groups. There were significant elevations of tubular biomarkers and protein/creatinine ratio after first and second SWL sessions compared with pre-SWL values (p < 0.0001). All tubular biomarkers returned to pre-SWL values at 7 and 14 days after second session, whereas they remained significantly elevated 3 days after second session (p = 0.027, < 0.001 and <0.001 for KIM-1, NGAL, and IL-18, respectively). SWL success was 73.6% in Group 1, 83.7% in Group 2, and 81% in Group 3. A significant decrease in ipsilateral renal split function was observed in Group 1 at the 3-month follow-up. Conclusions: An interval of 7 days is required between SWL sessions when treating renal stones to allow for complete recovery of kidney functions. Clinical Trial Registration: ID: NCT04575480.


Asunto(s)
Cálculos Renales , Litotricia , Humanos , Lipocalina 2 , Interleucina-18 , Creatinina , Cálculos Renales/terapia , Biomarcadores
13.
Spectrochim Acta A Mol Biomol Spectrosc ; 302: 123107, 2023 Dec 05.
Artículo en Inglés | MEDLINE | ID: mdl-37418905

RESUMEN

An ion pair-based surfactant-assisted dispersive liquid-liquid microextraction with solidification of floating organic drop (IP-SA-DLLME-SFOD) was developed for extraction of vanadium followed by spectrophotometric determination. Tannic acid (TA) and cetyl trimethylammonium bromide (CTAB) were utilized as complexing and ion-pairing agents, respectively. Using ion-pairing, TA-vanadium complex became more hydrophobic and quantitatively extracted into 1-undecanol. Some factors that influence extraction efficiency were studied. Under optimized circumstances, the detection and quantification limits were 1.8 µg L-1 and 5.9 µg L-1, respectively. The method was linear up to 1000 µg L-1 and the enrichment factors was 19.8. For 100 µg L-1 vanadium, the intra-day, and inter-days relative standard deviations (n = 8) were 1.4% and 1.8%, respectively. The suggested IP-SA-DLLME-SFOD procedure has been effectively implemented for spectrophotometric quantification of vanadium in fresh fruit juice samples. Finally, the greenness of the approach was estimated using Analytical Greenness Calculator (AGREE), which proved its environmental friendliness and safety.


Asunto(s)
Microextracción en Fase Líquida , Tensoactivos , Tensoactivos/química , Jugos de Frutas y Vegetales , Vanadio , Espectrofotometría/métodos , Microextracción en Fase Líquida/métodos
14.
Chemosphere ; 331: 138804, 2023 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-37137390

RESUMEN

Chromium (Cr) affects human health if it accumulates in organs to elevated concentrations. The toxicity risk of Cr in the ecosphere depends upon the dominant Cr species and their bioavailability in the lithosphere, hydrosphere, and biosphere. However, the soil-water-human nexus that controls the biogeochemical behaviour of Cr and its potential toxicity is not fully understood. This paper synthesizes information on different dimensions of Cr ecotoxicological hazards in the soil and water and their subsequent effects on human health. The various routes of environmental exposure of Cr to humans and other organisms are also discussed. Human exposure to Cr(VI) causes both carcinogenic and non-carcinogenic health effects via complicated reactions that include oxidative stress, chromosomal and DNA damage, and mutagenesis. Chromium(VI) inhalation can cause lung cancer; however, incidences of other types of cancer following Cr(VI) exposure are low but probable. The non-carcinogenic health consequences of Cr(VI) exposure are primarily respiratory and cutaneous. Research on the biogeochemical behaviour of Cr and its toxicological hazards on human and other biological routes is therefore urgently needed to develop a holistic approach to understanding the soil-water-human nexus that controls the toxicological hazards of Cr and its detoxification.


Asunto(s)
Suelo , Agua , Humanos , Cromo/toxicidad , Cromo/análisis , Exposición a Riesgos Ambientales , Carcinógenos/toxicidad , Carcinogénesis
15.
Ann Vasc Surg ; 94: 92-101, 2023 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-37075834

RESUMEN

BACKGROUND: Acute type B aortic dissection (TBAD) is a rare disease that is likely under-diagnosed in the UK. As a progressive, dynamic clinical entity, many patients initially diagnosed with uncomplicated TBAD deteriorate, developing end-organ malperfusion and aortic rupture (complicated TBAD). An evaluation of the binary approach to the diagnosis and categorisation of TBAD is needed. METHODS: A narrative review of the risk factors predisposing patients to progression from unTBAD to coTBAD was undertaken. RESULTS: Key high-risk features predispose the development of complicated TBAD, such as maximal aortic diameter > 40 mm and partial false lumen thrombosis. CONCLUSION: An appreciation of the factors that predispose to complicated TBAD would aid clinical decision-making surrounding TBAD.


Asunto(s)
Aneurisma de la Aorta Torácica , Disección Aórtica , Rotura de la Aorta , Implantación de Prótesis Vascular , Procedimientos Endovasculares , Humanos , Resultado del Tratamiento , Procedimientos Endovasculares/efectos adversos , Estudios Retrospectivos , Disección Aórtica/diagnóstico por imagen , Disección Aórtica/cirugía , Rotura de la Aorta/diagnóstico por imagen , Rotura de la Aorta/etiología , Rotura de la Aorta/cirugía , Factores de Riesgo , Aneurisma de la Aorta Torácica/cirugía , Implantación de Prótesis Vascular/efectos adversos
16.
Am J Cardiol ; 192: 206-211, 2023 04 01.
Artículo en Inglés | MEDLINE | ID: mdl-36842338

RESUMEN

Patients with classic low-flow low-gradient (cLFLG) aortic stenosis (AS) have a poor prognosis but still benefit from aortic valve replacement. There is a paucity of evidence to guide the choice between transcatheter aortic valve replacement (TAVR) and surgical aortic valve replacement (SAVR). This study compared procedural and midterm outcomes in patients with cLFLG AS between TAVR and SAVR. Patients with cLFLG AS, defined as an aortic valve area ≤1 cm2, mean gradient <40 mm Hg, and left ventricular ejection fraction <50%, were selected from a single center between 2015 and 2020. Inverse probability weighting and regression were used to adjust for differences in baseline characteristics, the nonrandom assignment of treatment modalities, and procedural differences. The primary end point was all-cause mortality. A total of 322 patients (220 TAVR and 102 SAVR) were included. At a follow-up of 4.4 ± 1.5 years, the adjusted hazard ratio (HR) for mortality after inverse probability weighting with SAVR was 0.66, 95% confidence interval (CI) 0.31 to 1.35; p = 0.24. Worse renal function at baseline (per 10 ml/min/m2 increase HR 0.92, 95% CI 0.84 to 1.00, p = 0.04) and multiple valve interventions (HR 5.39, 95% CI 2.62 to 11.12, p <0.001) independently predicted mortality. There was no difference in stroke and permanent pacemaker implantation, but the rates of renal replacement therapy were higher among the SAVR cohort: 13.7% versus 0%; p <0.001. In conclusion, among patients with cLFLG AS, there was no difference in midterm mortality between TAVR and SAVR, supporting the use of either treatment. However, in patients with poor renal function or at risk of renal failure, TAVR may be the preferred option.


Asunto(s)
Estenosis de la Válvula Aórtica , Implantación de Prótesis de Válvulas Cardíacas , Reemplazo de la Válvula Aórtica Transcatéter , Humanos , Reemplazo de la Válvula Aórtica Transcatéter/efectos adversos , Implantación de Prótesis de Válvulas Cardíacas/efectos adversos , Volumen Sistólico , Resultado del Tratamiento , Función Ventricular Izquierda , Factores de Riesgo , Estenosis de la Válvula Aórtica/cirugía , Válvula Aórtica/cirugía
17.
Curr Probl Cardiol ; 48(1): 101422, 2023 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-36167225

RESUMEN

Aortic stenosis (AS) is a progressive disease that carries a poor prognosis. Patients are managed conservatively until satisfying an indication for transcatheter aortic valve implantation (TAVI) or surgical aortic valve replacement (SAVR) based on AS severity and the presence of symptoms or adverse impact on the myocardium. Up to 1 in 3 TAVIs are performed for patients with acute symptoms of dyspnea at rest, angina, and/or syncope - termed acute decompensated aortic stenosis (ADAS) and require urgent aortic valve replacement. These patients have longer hospital length of stay, undergo physical deconditioning, and have a higher rate of acute kidney injury and mortality compared to stable patients with less severe symptoms. There is an urgent need to prevent ADAS and to deliver pathways to manage and improve ADAS-related outcomes. We provide here a contemporary review on epidemiological and pathophysiological aspects of ADAS, with a focus on the impact of ADAS from clinical and economic perspectives. We offer a global overview of the available evidence for treatment of ADAS and with priorities suggested for addressing current gaps in the literature and unmet clinical needs to improve outcomes for AS patients.


Asunto(s)
Estenosis de la Válvula Aórtica , Implantación de Prótesis de Válvulas Cardíacas , Reemplazo de la Válvula Aórtica Transcatéter , Humanos , Factores de Riesgo , Resultado del Tratamiento , Estenosis de la Válvula Aórtica/diagnóstico , Estenosis de la Válvula Aórtica/cirugía , Reemplazo de la Válvula Aórtica Transcatéter/efectos adversos , Válvula Aórtica/cirugía
18.
Food Chem ; 401: 134058, 2023 Feb 01.
Artículo en Inglés | MEDLINE | ID: mdl-36095998

RESUMEN

Sodium dehydroacetate (SDA) is one of the most common additives and preservatives in food, especially for strawberries, due to its fungicidal and antibacterial effects. Therefore, an innovative electrochemical sensor, depending on carbon paste electrode (CPE) modulated with multi-walled carbon nanotubes and molecularly imprinted polymers, was constructed for in situ detection of SDA. Based on density functional theory calculations, the polymer film was imprinted on the modified CPE surface via electrochemical polymerization of pyrrole in the presence of SDA. The morphology and electrochemical behavior of the synthesized sensors were characterized using different techniques. Under optimal conditions,a wide linear range (4.1 × 10-6 -1.2 mM)with a detection limit of 0.13 nM was obtained using differential pulse voltammetry and electrochemical impedance spectroscopy. The proposed sensor displayed superb selectivity for SDA, good precision (RSD = 2.7%), and high stability (˃4 weeks). Thus, it was successfully applied to determine SDA in strawberry samples with excellent recoveries (96.7%-100%).


Asunto(s)
Fragaria , Impresión Molecular , Nanotubos de Carbono , Impresión Molecular/métodos , Nanotubos de Carbono/química , Técnicas Electroquímicas/métodos , Pirroles , Polímeros Impresos Molecularmente , Electrodos , Polímeros/química , Antibacterianos , Límite de Detección
19.
J Trace Elem Med Biol ; 76: 127123, 2023 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-36563592

RESUMEN

BACKGROUND: The status of heavy metals in children with lower urinary tract pathology that may harm the upper tract, e.g., neuropathic bladder and posterior urethral valve and its relationship with oxidative stress has not been adequately investigated. Therefore, the object of the current work was to evaluate the concentrations of copper, zinc, cadmium and lead and their relations with levels of catalase (CAT), malondialdehyde (MDA) and glutathione (GSH) in boys with neuropathic bladder and posterior urethral valve. METHODS: Thirty-six children with neuropathic bladder, 35 children with posterior urethral valve and 33 health controls were included in the study. In addition to routine laboratory tests, blood samples were collected from patients and controls to assess levels of Cu, Zn, Cd and Pb in addition to plasma concentrations of CAT, MDA and GSH. RESULTS: Significantly elevated levels of Cu, Pb, CAT, MDA and GSH and significantly lower concentration of blood Zn were found in the studied groups compared to the controls. In the posterior urethral valve group, blood level of Cu was positively correlated with GSH while a significantly negative relation was observed between blood Zn and CAT activity among the neuropathic bladder patients. CONCLUSION: Neuropathic bladder and posterior urethral valve may lead to abnormalities in the blood levels of heavy metals (i.e. Cu, Pb and Zn) and markers of oxidative stress (CAT, MDA and GSH). Therefore, the levels of theses metal ions should be monitored during the treatment course of neuropathic bladder and posterior urethral valve patients to prevent or minimize long-term oxidative injury.


Asunto(s)
Metales Pesados , Vejiga Urinaria Neurogénica , Sistema Urinario , Humanos , Plomo , Cobre , Estrés Oxidativo , Cadmio , Glutatión/metabolismo , Sistema Urinario/metabolismo
20.
Medicina (Kaunas) ; 60(1)2023 Dec 20.
Artículo en Inglés | MEDLINE | ID: mdl-38276045

RESUMEN

Background and Objectives: The present systematic review and meta-analysis undertake a comparison of studies that examine the accuracy of robot-assisted dental implant placement in relation to static computer-assisted implant surgery (SCAIS), dynamic computer-assisted implant surgery (DCAIS), and freehand procedures. This study aims to provide a comprehensive understanding of the precision of robot-assisted dental implant placement and its comparative efficacy in relation to other placement techniques. Methods: The guidelines recommended by Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) were used to organize and compose this review. Four electronic databases (PubMed, Web of Science, Scopus, and Cochrane) were systematically searched for pertinent articles. Articles were selected following the inclusion and exclusion criteria. Qualitative and quantitative analyses of the selected articles were performed. Results: The initial electronic search resulted in 1087 hits. Based on the inclusion and exclusion criteria, five articles were selected for qualitative analysis, out of which three were considered for quantitative analysis. Three parameters were considered for accuracy evaluation (angular, coronal, and apical deviation). The mean angular deviation was -1.22 degrees (95% CI, -1.06--1.39), the mean coronal deviation was -0.15 mm (95% CI, -0.24--0.07), and the mean apical deviation was -0.19 mm (95% CI, -0.27--0.10). Conclusions: The robotic implant system was found to have significantly lower angular deviations and insignificantly lower coronal and apical deviations compared to DCAIS. Within the limitations of this review, it can be concluded that robot-assisted implant placement in resin models permits higher accuracy compared to DCAIS and SCAIS systems. However, due to the limited number of comparative studies with high heterogeneity, the findings of this review should be interpreted with caution. Further research is necessary to confirm the clinical application of robotics in implant surgery.


Asunto(s)
Implantes Dentales , Robótica , Cirugía Asistida por Computador , Humanos , Cirugía Asistida por Computador/métodos , Proyectos de Investigación , Computadores , Imagenología Tridimensional
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