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1.
Qatar Med J ; 2022(3): 38, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36072085

RESUMEN

The coronavirus disease (COVID-19) pandemic has had a significant worldwide impact since its emergence in 2019. End-stage kidney disease patients have been among the most vulnerable population affected and have a higher risk of acquiring infection and developing more severe disease. We have encountered three major COVID-19 waves in Qatar and they have required different strategies to overcome. The most recent wave was due to the Omicron variant characterized by higher transmissibility. The monthly incidence of COVID-19 infection during the Omicron wave in patients with end-stage renal disease peaked at 256 patients compared to 35 and 39 patients during the first and second waves, respectively. In addition, more than one-third of our dialysis staff became infected during this wave. Unlike the previous two waves, COVID-19 due to the Omicron variant was less severe with only 5% of hemodialysis patients requiring admission to the intensive care unit compared to 25% during the previous waves. The Omicron variant wave resulted in a crisis in our country due to the high number of non-hospitalized COVID-19 hemodialysis patients and the severe staff shortage. Several measures were taken to overcome the crisis, such as designating one facility to dialyze all COVID-19 ambulatory patients, reducing dialysis sessions to 3 hours, and introducing a fourth dialysis shift. This article describes the challenges we faced in the ambulatory hemodialysis service during the Omicron wave and the measures taken in the COVID-19 and non-COVID-19 designated facilities to combat the crisis.

2.
Environ Res ; 189: 109906, 2020 10.
Artículo en Inglés | MEDLINE | ID: mdl-32980003

RESUMEN

In the present study, a previously capped waste disposal site at Kollevåg (Norway) was selected to study the effects of contaminant leakage on biomarkers associated with Atlantic cod (Gadus morhua) reproductive endocrinology and development. Immature cod were caged for 6 weeks at 3 locations, selected to achieve a spatial gradient of contamination, and compared to a reference station. Quantitative transcriptomic, and lipidomic analysis was used to evaluate the effects of the potential complex contaminant mixture on ovarian developmental and endocrine physiology. The number of expressed transcripts, with 0.75 log2-fold differential expression or more, varied among stations and paralleled the severity of contamination. Particularly, significant bioaccumulation of ∑PCB-7, ∑DDTs and ∑PBDEs were observed at station 1, compared to the other station, including the reference station. Respectively 1416, 698 and 719 differentially expressed genes (DEGs), were observed at stations 1, 2 and 3, compared to the reference station, with transcripts belonging to steroid hormone synthesis pathway being significantly upregulation. Transcription factors such as esr2 and ahr2 were increased at all three stations, with highest fold-change at Station 1. MetaCore pathway maps identified affected pathways that are involved in ovarian physiology, where some unique pathways were significantly affected at each station. For the lipidomics, sphingolipid metabolism was particularly affected at station 1, and these effects paralleled the high contaminant burden at this station. Overall, our findings showed a novel and direct association between contaminant burden and ovarian toxicological and endocrine physiological responses in cod caged at the capped Kollevåg waste disposal site.


Asunto(s)
Gadus morhua , Animales , Gadus morhua/genética , Lipidómica , Noruega , Transcriptoma , Instalaciones de Eliminación de Residuos
3.
Andrologia ; 52(5): e13574, 2020 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-32196717

RESUMEN

The aim of this study was to evaluate the role of platelet count (PLT) and platelet volume indices (PVI) such as mean platelet volume (MPV), platelet distribution width (PDW) and plateletcrit (PCT) as a clinical biomarker in 64 infertile males with varicocele and 45 controls. In addition, semen parameters, serum total testosterone, FSH and testicular volume were measured before and at 6 months after varicocelectomy. The mean PLT, MPV, PDW and PCT were 231 ± 42 × 103/µl, 9.6 ± 1.8 fl, 16.2 ± 2.5 fl and 0.18% in the patient group respectively. When the patient and control groups were compared, there was a significant increase in mean MPV, PDW and PCT (p < .0001), while platelet count was lower in patients than control group, but with no significant relationship. MPV had a significant negative correlation with total testosterone (p < .03). No significant correlations were found between PVI and testicular volume. After follow-up of 37.1 ± 1.9 months, a significant negative correlation was found between the preoperative MPV and varicocelectomy outcome in terms of semen values (p < .007). So, the increase in MPV and low total testosterone in men with varicocele may be a feature of high risk of infertility.


Asunto(s)
Infertilidad Masculina/cirugía , Volúmen Plaquetario Medio , Procedimientos Quirúrgicos Urológicos Masculinos/métodos , Varicocele/cirugía , Procedimientos Quirúrgicos Vasculares/métodos , Adolescente , Adulto , Biomarcadores/sangre , Estudios de Casos y Controles , Estudios de Factibilidad , Estudios de Seguimiento , Voluntarios Sanos , Humanos , Infertilidad Masculina/sangre , Infertilidad Masculina/diagnóstico , Infertilidad Masculina/etiología , Masculino , Recuento de Plaquetas , Periodo Posoperatorio , Valor Predictivo de las Pruebas , Periodo Preoperatorio , Pronóstico , Recurrencia , Análisis de Semen , Cordón Espermático/irrigación sanguínea , Cordón Espermático/cirugía , Testosterona/sangre , Resultado del Tratamiento , Varicocele/sangre , Varicocele/complicaciones , Adulto Joven
4.
J Am Chem Soc ; 141(44): 17659-17669, 2019 Nov 06.
Artículo en Inglés | MEDLINE | ID: mdl-31593456

RESUMEN

Chemical doping of inorganic-organic hybrid perovskites is an effective way of improving the performance and operational stability of perovskite solar cells (PSCs). Here we use 5-ammonium valeric acid iodide (AVAI) to chemically stabilize the structure of α-FAPbI3. Using solid-state MAS NMR, we demonstrate the atomic-level interaction between the molecular modulator and the perovskite lattice and propose a structural model of the stabilized three-dimensional structure, further aided by density functional theory (DFT) calculations. We find that one-step deposition of the perovskite in the presence of AVAI produces highly crystalline films with large, micrometer-sized grains and enhanced charge-carrier lifetimes, as probed by transient absorption spectroscopy. As a result, we achieve greatly enhanced solar cell performance for the optimized AVA-based devices with a maximum power conversion efficiency (PCE) of 18.94%. The devices retain 90% of the initial efficiency after 300 h under continuous white light illumination and maximum-power point-tracking measurement.

5.
Environ Sci Technol ; 53(12): 7036-7044, 2019 06 18.
Artículo en Inglés | MEDLINE | ID: mdl-31090407

RESUMEN

The dopaminergic effect of PAH and PFAS mixtures, prepared according to environmentally relevant concentrations, has been studied in juvenile female Atlantic cod ( Gadus morhua). Benzo[a]pyrene, dibenzothiophene, fluorene, naphthalene, phenanthrene, and pyrene were used to prepare a PAH mixture, while PFNA, PFOA, PFOS, and PFTrA were used to prepare a PFAS mixture. Cod were injected intraperitoneally twice, with either a low (1×) or high (20×) dose of each compound mixture or their combinations. After 2 weeks of exposure, levels of plasma 17ß-estradiol (E2) were significantly elevated in high PAH/high PFAS treated group. Brain dopamine/metabolite ratios (DOPAC/dopamine and HVA+DOPAC/dopamine) changed with E2 plasma levels, except for high PAH/low PFAS and low PAH/high PFAS treated groups. On the transcript levels, th mRNA inversely correlated with dopamine/metabolite ratios and gnrh2 mRNA levels. Respective decreases and increases of drd1 and drd2a after exposure to the high PAH dose were observed. Specifically, high PFAS exposure decreased both drds, leading to high plasma E2 concentrations. Other studied end points suggest that these compounds, at different doses and combinations, have different toxicity threshold and modes of action. These effects indicate potential alterations in the feedback signaling processes within the dopaminergic pathway by these contaminant mixtures.


Asunto(s)
Fluorocarburos , Gadus morhua , Hidrocarburos Policíclicos Aromáticos , Contaminantes Químicos del Agua , Animales , Dopamina , Femenino , Homeostasis
6.
J Natl Med Assoc ; 110(6): 556-559, 2018 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-30129499

RESUMEN

BACKGROUND AND AIMS: Hepatitis C virus (HCV) treatment has changed dramatically in the last few years. Our observations suggest that a minority of HCV infected Somalis are treated. In this study, we aimed to evaluate for treatment and health outcome disparities between Somali and non-Somali patients during the direct acting antiviral (DAA) era. METHODS: Patients with HCV seen in the gastroenterology clinic in 2015 were included in the study. Patients were identified using ICD9 and 10 codes. Electronic medical records were analyzed to evaluate for treatment candidacy, acceptance and reasons for refusal of treatment. RESULTS: Genotype 4 followed by 3 were the most common genotypes in the Somalis while genotype 1 was the most common in the non-Somalis. Majority of patients were offered treatment, active alcohol and substance abuse was a common reason for not offering treatment in non-Somalis while the presence of hepatocellular carcinoma was the most common reason in Somalis. Somalis had higher rates of declining treatment given the asymptomatic nature of their disease and the feeling that treatment is not needed. Sustained virologic response rates were comparable in both groups. CONCLUSIONS: Disparities in acceptance of HCV treatment persist in the DAA era. The asymptomatic nature of the infection and potential cultural mistrust makes patients hesitant to undergo treatment. Healthcare providers must find interventions aimed at reducing barriers to treatment and increasing acceptance of HCV treatment.


Asunto(s)
Antivirales/uso terapéutico , Hepatitis C Crónica/tratamiento farmacológico , Cobertura del Seguro/estadística & datos numéricos , Seguro de Salud/estadística & datos numéricos , Aceptación de la Atención de Salud , Selección de Paciente , Infecciones Asintomáticas/terapia , Femenino , Genotipo , Hepacivirus/genética , Hepatitis C Crónica/etnología , Humanos , Masculino , Minnesota , Somalia/etnología , Respuesta Virológica Sostenida , Negativa del Paciente al Tratamiento , Confianza
7.
Hepatology ; 63(1): 284-306, 2016 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-26566246

RESUMEN

UNLABELLED: Chronic hepatitis B viral (HBV) infection remains a significant global health problem. Evidence-based guidelines are needed to help providers determine when treatment should be initiated, which medication is most appropriate, and when treatment can safely be stopped. The American Association for the Study of Liver Diseases HBV guideline methodology and writing committees developed a protocol a priori for this systematic review. We searched multiple databases for randomized controlled trials and controlled observational studies that enrolled adults ≥18 years old diagnosed with chronic HBV infection who received antiviral therapy. Data extraction was done by pairs of independent reviewers. We included 73 studies, of which 59 (15 randomized controlled trials and 44 observational studies) reported clinical outcomes. Moderate-quality evidence supported the effectiveness of antiviral therapy in patients with immune active chronic HBV infection in reducing the risk of cirrhosis, decompensated liver disease, and hepatocellular carcinoma. In immune tolerant patients, moderate-quality evidence supports improved intermediate outcomes with antiviral therapy. Only very low-quality evidence informed the questions about discontinuing versus continuing antiviral therapy in hepatitis B e antigen-positive patients who seroconverted from hepatitis B e antigen to hepatitis B e antibody and about the safety of entecavir versus tenofovir. Noncomparative and indirect evidence was available for questions about stopping versus continuing antiviral therapy in hepatitis B e antigen-negative patients, monotherapy versus adding a second agent in patients with persistent viremia during treatment, and the effectiveness of antivirals in compensated cirrhosis with low-level viremia. CONCLUSION: Most of the current literature focuses on the immune active phases of chronic HBV infection; decision-making in other commonly encountered and challenging clinical settings depends on indirect evidence.


Asunto(s)
Antivirales/uso terapéutico , Hepatitis B Crónica/tratamiento farmacológico , Adulto , Antígenos e de la Hepatitis B/sangre , Hepatitis B Crónica/sangre , Hepatitis B Crónica/complicaciones , Hepatitis B Crónica/inmunología , Humanos , Cirrosis Hepática/etiología
8.
Clin Sci (Lond) ; 130(13): 1065-74, 2016 07 01.
Artículo en Inglés | MEDLINE | ID: mdl-27215679

RESUMEN

One of the most controversial health decisions facing women is deciding upon the use of hormonal treatments for symptoms of menopause. This brief review focuses on the historical context of use of menopausal hormone treatments (MHT), summarizes results of major observational, primary and secondary prevention studies of MHT and cardiovascular (CV) outcomes, provides evidence for how sex steroids modulate CV function and identifies challenges for future research. As medicine enters an era of personalization of treatment options, additional research into sex differences in the aetiology of CV diseases will lead to better risk identification for CV disease in women and identify whether a woman might receive CV benefit from specific formulations and doses of MHT.


Asunto(s)
Enfermedades Cardiovasculares/tratamiento farmacológico , Terapia de Reemplazo de Estrógeno , Estrógenos/metabolismo , Hormonas Esteroides Gonadales/farmacología , Menopausia/fisiología , Animales , Enfermedades Cardiovasculares/metabolismo , Progresión de la Enfermedad , Terapia de Reemplazo de Estrógeno/métodos , Humanos
9.
Public Health Nutr ; 19(2): 363-70, 2016 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-25939394

RESUMEN

OBJECTIVE: To compare an improved corn-soya blend (CSB+) with a ready-to-use supplementary food (RUSF) to test the hypothesis that satisfactory recovery rate will be achieved with CSB+ or RUSF when these foods provide 50 % of the child's energy requirement, the 50 % remaining coming from usual diet. DESIGN: A comparative efficacy trial study was conducted with moderately wasted children, using a controlled randomized design, with parallel assignment for RUSF or CSB+. Every child received a daily ration of 167 kJ (40 kcal)/kg body weight during 56 d with a follow-up performed every 14 d. Every caregiver received nutrition counselling at enrolment and at each follow-up visit. SETTING: Health districts of Mvog-Beti and Evodoula in the Centre region of Cameroon. SUBJECTS: Eight hundred and thirty-three children aged 6-59 months were screened and eighty-one malnourished children (weight-for-height Z-score between -3 and -2) aged 25-59 months were selected. RESULTS: Of children treated with CSB+ and RUSF, 73 % (95 % CI 59 %, 87 %) and 85 % (95 % CI 73 %, 97 %), respectively, recovered from moderate acute malnutrition, with no significant difference between groups. The mean duration of treatment required to achieve recovery was 44 d in the RUSF group and 51 d in the CSB+ group (log-rank test, P=0·0048). CONCLUSIONS: There was no significant difference in recovery rate between the groups. Both CSB+ and RUSF were relatively successful for the treatment of moderate acute malnutrition in children. Despite the relatively low ration size provided, the recovery rates observed for both groups were comparable to or higher than those reported in previous studies, a probable effect of nutrition education.


Asunto(s)
Trastornos de la Nutrición del Niño/dietoterapia , Alimentos Fortificados , Glycine max , Desnutrición/dietoterapia , Aumento de Peso , Zea mays , Enfermedad Aguda , Peso Corporal , Camerún , Preescolar , Comida Rápida , Femenino , Humanos , Lactante , Masculino , Necesidades Nutricionales , Valor Nutritivo
10.
Evid Based Med ; 21(6): 214-221, 2016 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-27836921

RESUMEN

BACKGROUND: The comparative effectiveness of non-pharmacological treatments of depression remains unclear. METHODS: We conducted an overview of systematic reviews to identify randomised controlled trials (RCTs) that compared the efficacy and adverse effects of non-pharmacological treatments of depression. We searched multiple electronic databases through February 2016 without language restrictions. Pairs of reviewers determined eligibility, extracted data and assessed risk of bias. Meta-analyses were conducted when appropriate. RESULT: We included 367 RCTs enrolling ∼20 000 patients treated with 11 treatments leading to 17 unique head-to-head comparisons. Cognitive behavioural therapy, naturopathic therapy, biological interventions and physical activity interventions reduced depression severity as measured using standardised scales. However, the relative efficacy among these non-pharmacological interventions was lacking. The effect of these interventions on clinical response and remission was unclear. Adverse events were lower than antidepressants. LIMITATION: The quality of evidence was low to moderate due to inconsistency and unclear or high risk of bias, limiting our confidence in findings. CONCLUSIONS: Non-pharmacological therapies of depression reduce depression symptoms and should be considered along with antidepressant therapy for the treatment of mild-to-severe depression. A shared decision-making approach is needed to choose between non-pharmacological therapies based on values, preferences, clinical and social context.


Asunto(s)
Terapia Cognitivo-Conductual , Depresión/terapia , Trastorno Depresivo Mayor/terapia , Ensayos Clínicos Controlados Aleatorios como Asunto , Antidepresivos , Humanos , Psicoterapia
11.
Liver Transpl ; 21(5): 599-606, 2015 May.
Artículo en Inglés | MEDLINE | ID: mdl-25789635

RESUMEN

Growing evidence suggests that pretransplant alpha-fetoprotein (AFP) predicts outcomes of hepatocellular carcinoma (HCC) patients treated with liver transplantation. We aimed to determine whether pretransplant AFP, Lens culinaris agglutinin-reactive alpha-fetoprotein (AFP-L3), and des-gamma-carboxyprothrombin (DCP) predicted HCC recurrence after transplantation. A retrospective cohort study of 313 HCC patients undergoing transplantation between 2000 and 2008 was conducted, and 48 (15.3%) developed recurrence during a median follow-up of 90.8 months. The 127 patients with available serum drawn before transplantation were included; they included 86 without recurrence and 41 with recurrence. Serum was tested for AFP, AFP-L3%, and DCP in a blinded fashion with the µTASWako i30 immunoanalyzer. All biomarkers were significantly associated with HCC recurrence. The hazard ratios (HRs) were 3.5 [95% confidence interval (CI), 1.9-6.7; P < 0.0001] for DCP ≥ 7.5 ng/mL and 2.8 (95% CI, 1.4-5.4; P = 0.002) for AFP ≥ 250 ng/mL. The HR increased to 5.2 (95% CI, 2.3-12.0; P < 0.0001) when AFP ≥ 250 ng/mL and DCP ≥7.5 ng/mL were considered together. When they were combined with the Milan criteria, the HR increased from 2.6 (95% CI, 1.4-4.7; P = 0.003) for outside the Milan criteria to 8.6 (95% CI, 3.0-24.6; P < 0.0001) for outside the Milan criteria and AFP ≥ 250 ng/mL and to 7.2 (95% CI, 2.8-18.1; P < 0.0001) for outside the Milan criteria and DCP ≥7.5 ng/mL. Our findings suggest that biomarkers are useful for predicting the risk of HCC recurrence after transplantation. Using both biomarkers and the Milan criteria may be better than using the Milan criteria alone in optimizing the decision of liver transplantation eligibility.


Asunto(s)
Carcinoma Hepatocelular/diagnóstico , Carcinoma Hepatocelular/cirugía , Neoplasias Hepáticas/diagnóstico , Neoplasias Hepáticas/cirugía , Trasplante de Hígado/métodos , Recurrencia Local de Neoplasia/diagnóstico , Anciano , Biomarcadores/metabolismo , Carcinoma Hepatocelular/patología , Estudios de Cohortes , Femenino , Humanos , Neoplasias Hepáticas/patología , Masculino , Persona de Mediana Edad , Recurrencia Local de Neoplasia/patología , Lectinas de Plantas/química , Modelos de Riesgos Proporcionales , Precursores de Proteínas/metabolismo , Protrombina/metabolismo , Estudios Retrospectivos , Índice de Severidad de la Enfermedad , Transducción de Señal , Tomografía Computarizada por Rayos X/métodos , alfa-Fetoproteínas/metabolismo
12.
J Appl Microbiol ; 116(3): 700-9, 2014 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-24267817

RESUMEN

AIMS: This study investigated the effect of some cyanobacterial exudates on the level of sex hormones in a mammalian model and to identify the molecules that could act as endocrine disruptor. METHODS AND RESULTS: In this study, the cytotoxicity of purified exudates of some axenic cyanobacterial cultures (Nostoc ellipsosporum, Nostoc muscorum, Anabaena oryzae & Anabaena. sp.) was evaluated against normal melanocyte cell line (HFB4). The intraperitoneal injection of the cyanobacterial exudates demonstrated a marked disturbance in the serum level of testosterone, progesterone, follicular stimulating hormone (FSH) and luteinizing hormone (LH) of male mice. GC-MS and LC-MS/MS analysis showed the presence of some sterol-like compounds in the cyanobacterial filtrates. CONCLUSIONS: This work demonstrated that the nontoxic cyanobacterial species have the ability to produce some bioactive compounds into their surroundings that can disrupt the mammalian reproductive hormones. SIGNIFICANCE AND IMPACT OF STUDY: The cyanobacterial extracellular bioactive molecules can affect on the production of the sex hormones via positive and negative feedback and may be a risk to human beings.


Asunto(s)
Cianobacterias/química , Disruptores Endocrinos/farmacología , Hormonas Esteroides Gonadales/sangre , Animales , Disruptores Endocrinos/química , Disruptores Endocrinos/toxicidad , Hormona Folículo Estimulante/sangre , Hormona Luteinizante/sangre , Masculino , Ratones , Progesterona/sangre , Esteroles/química , Testosterona/sangre
13.
Cureus ; 16(4): e57412, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38694650

RESUMEN

BACKGROUND: The role of interns during general surgical rotation is crucial in shaping their future careers as surgeons. Surgical rotation offers a unique opportunity to gain valuable hands-on experience in fast-paced and challenging environments. However, interns often face significant challenges in obtaining the necessary practical training to develop proficiency in surgical techniques. This article aims to analyze some aspects of the accumulated competency of interns during their general surgery rotation, focusing on the range of skills and knowledge gained, in addition to the challenges faced. SUBJECTS AND METHODS: We conducted a cross-sectional study using an anonymous web-based self-assessment questionnaire. The target population of the study included all Jazan University medical interns enrolled in the academic year 2022-2023. RESULTS: Most participants showed low-to-average levels of proficiency in monitoring clinical evolution and treatment plans, ranging from fundamental awareness (n = 17, 17.5%) to working knowledge (n = 51, 52.6%), with only three participants (3.1%) reporting an expert level of proficiency. The same pattern was observed in the documentation of patient records (range: 7.2%, n = 7 for fundamental awareness to 42.3%, n = 41 for working knowledge). However, a significant proportion saw themselves as either proficient (n = 23, 23.7%) or experts (n = 15, 15.5%) in this aspect. Regarding bedside procedures, such as venipuncture, proctoscopy, nasogastric tube insertion, and urethral catheterization, the participants showed different proficiency levels, with the lowest in proctoscopy, where 66 (68.0%) of the participants reported only fundamental awareness. The results also revealed low perceived proficiency in performing surgical skin incisions, wound suturing, knot tying, application of surgical skin clips, and abscess drainage, with the lowest proficiency observed in the excision of superficial lumps as more than half of the participants reported only fundamental awareness (n = 51, 52.6%). CONCLUSION: The results of this study indicate that documentation and monitoring of patient progress are the competencies mastered most by the majority of interns during their rotations in general surgery. However, the interns' overall level of proficiency in bedside procedures and basic surgical skills acquired during their rotation was low to average. Additionally, interns were dissatisfied with their training and the opportunities provided for them to actively engage in performing procedures in the operating room. This low proficiency is unrelated to pre-internship academic achievement, sex, or interest in future surgical careers. This suggests that efforts are needed to develop strategies to enhance interns' satisfaction and engagement, ultimately improving their overall experience during internships.

14.
Clin Case Rep ; 12(10): e9263, 2024 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-39328294

RESUMEN

Key Clinical Message: Percutaneous precutaneous mechanical thrombectomy has been used for clot dissolution and removal in selected cases of iliofemoral deep vein thrombosis. Intravascular Hemolysis and hemoglobinuria caused by pharmachomechanical chather directed thrombolysis (PCDT) devices like the Angiojet is associated with an increased risk of acute kidney injury (AKI). Acute tubular necrosis that is severe enough to require hemodialysis can occur. Clinicians should be aware of this potential risk to ensure early recognition and timely referral to the nephrologist, and a clear explanation of the risk of AKI should be given to the patients undergoing this procedure. Abstract: Lower extremity deep vein thrombosis (DVT) is a frequently encountered medical condition, and one that can lead to death or major disability if not promptly treated. Anticoagulation alone may not always be enough for complete treatment. It has been reported that early thrombus removal can rapidly relieve symptoms and prevent disease progression in some selected cases. Percutaneous pharmacomechanical thrombectomy has been used for clot dissolution and removal in such cases. AngioJet is an increasingly used method of percutaneous mechanical thrombectomy for DVT that can cause intravascular hemolysis and potentially acute kidney injury (AKI). We report here a case of a 39 years old lady who developed severe AKI (illustrated by creatinine level of 664 µmol/L (7.5 mg/dL), bicarb of 13 mmol/L and being anuric), requiring hemodialysis secondary to intravascular hemolysis and hemoglobinuria that occurred immediately after the use of AngioJet pharmacomechanical catheter-directed technique to treat an extensive iliofemoral DVT.

15.
Cureus ; 16(8): e66613, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-39258055

RESUMEN

Background Post-traumatic intracranial hemorrhage is a life-threatening condition, and early detection and response can significantly reduce morbidity and mortality rates. The aim of this study was to assess public awareness of the alarming signs of intracranial bleeding after trauma in adults in Jeddah, Saudi Arabia. Methodology From August 2023 to April 2024, a descriptive cross-sectional study was conducted using a five-scale structured questionnaire: demographics, risk factors for road traffic accidents, alarm signs and symptoms, ability to recognize these signs, and participants who experienced head trauma. The study focused on people aged 18 and over living in Jeddah. Results A total of 584 participants were included, with 34.2% males and 65.8% females. Findings revealed that 57% recognized the critical need for medical help after head trauma. Furthermore, only 45% of the population were unaware that low levels of awareness or wakefulness indicate bleeding, reflecting a low awareness level in the adult population. Among children, only 34% recognized changes in eating and lactation habits, and 54% identified continuous crying and irritability. Furthermore, 66% of participants identified loss or change in consciousness as a symptom that required hospital admission, while 60% recognized chronic headaches as a critical sign. Conclusion This study revealed the critical need for public health campaigns to improve awareness and understanding of signs of intracranial post-traumatic bleeding. The results highlighted the importance of early medical interventions to reduce the morbidity and mortality associated with this condition.

16.
Cureus ; 16(8): e68316, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-39350827

RESUMEN

Statins are among the most widely prescribed drugs for treating dyslipidemia and reducing the incidence of heart disease and stroke. However, they come with a wide range of side effects, from myopathy to necrotizing rhabdomyolysis, as well as diabetes, hepatotoxicity, and sleep problems. The most common side effect of statins is statin-induced myopathy, often leading to discontinuation of statin therapy and noncompliance in many patients. This study aims to assess the effectiveness of coenzyme Q10 (CoQ10) supplementation as a treatment for patients with statin-induced myopathy. This systematic review was conducted by following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) 2020 statement. Relevant studies were identified through searches of Medline, PMC, PubMed, Science Direct, and Google Scholar. Only randomized control trials and meta-analyses of oral CoQ10 supplementation versus placebo in adults with statin-associated myalgia were included. The risk of bias was assessed using the Cochrane Risk of Bias tool (The Cochrane Collaboration, London, England, UK) and the measurement tool for the "assessment of multiple systematic reviews" (AMSTAR tool). Out of 5,000 records identified, only five were selected for this review: one meta-analysis and four randomized controlled trials. All of these studies were conducted between 2010 and 2023, involving a total of 800 patients. All randomized controlled trials showed improvement in statin-associated myopathy with CoQ10 supplementation, along with or without a reduced dosage of statins, without any notable side effects of CoQ10. Therefore, it can be deduced that CoQ10 supplementation significantly ameliorates statin-induced musculoskeletal symptoms.

17.
ACS Appl Mater Interfaces ; 16(39): 52789-52798, 2024 Oct 02.
Artículo en Inglés | MEDLINE | ID: mdl-39297304

RESUMEN

This study points out the importance of the templating effect in hybrid organic-inorganic perovskite semiconductors grown on graphene. By combining two achiral materials, we report the formation of a chiral composite heterostructure with electronic band splitting. The effect is observed through circularly polarized light emission and detection in a graphene/α-CH(NH2)2PbI3 perovskite composite, at ambient temperature and without a magnetic field. We exploit the spin-charge conversion by introducing an unbalanced spin population through polarized light that gives rise to a spin photoconductive effect rationalized by Rashba-type coupling. The prepared composite heterostructure exhibits a circularly polarized photoluminescence anisotropy gCPL of ∼0.35 at ∼2.54 × 103 W cm-2 confocal power density of 532 nm excitation. A carefully engineered interface between the graphene and the perovskite thin film enhances the Rashba field and generates the built-in electric field responsible for photocurrent, yielding a photoresponsivity of ∼105 A W-1 under ∼0.08 µW cm-2 fluence of visible light photons. The maximum photocurrent anisotropy factor gph is ∼0.51 under ∼0.16 µW cm-2 irradiance. The work sheds light on the photophysical properties of graphene/perovskite composite heterostructures, finding them to be a promising candidate for developing miniaturized spin-photonic devices.

18.
Cureus ; 16(7): e64991, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-39165434

RESUMEN

Carpal tunnel syndrome (CTS) is a condition that causes discomfort due to the compression of the median nerve in the wrist. Carpal tunnel release (CTR) is a surgical procedure that can help alleviate the symptoms of CTS. Two methods are commonly used for CTR: endoscopic carpal tunnel release (ECTR) and open carpal tunnel release (OCTR). The choice of method can impact surgical outcomes and potential complications. This review aims to compare the outcomes of both methods for individuals diagnosed with CTS. This systematic review analyzes the outcomes and potential complications of ECTR and OCTR for CTS. The study encompassed a comprehensive analysis of randomized controlled trials (RCTs) and meta-analyses comparing both methods. We searched for studies released between January 2012 and October 2023 on PubMed, Science Direct, and Google Scholar. The researchers assessed the quality of studies using the Cochrane risk of bias tool and the AMSTAR 2 (A Measurement Tool to Assess Systematic Reviews) tool. The study's scope included a range of outcomes and complications, such as symptom relief, functional recovery, grip strength, return to work, patient satisfaction, scar sensitivity, pillar pain, wound complications, nerve-related issues, morphological changes, and recurrence. The review analyzed 11 studies, including seven RCTs and four meta-analyses. These studies evaluated 4367 ECTR and 4107 cases of OCTR. The patients' ages ranged from 46 to 58, and the follow-up periods ranged from three to 24 months. The findings reveal that ECTR has comparable or better outcomes than OCTR, particularly in postoperative discomfort, functional recovery, grip strength, resumption of work, and patient satisfaction. Additionally, ECTR has lower levels of scar sensitivity, pillar pain, and wound-related complications than OCTR. However, ECTR carries a higher risk of reversible nerve injury. There were no substantial differences between the two techniques regarding other potential complications. Both ECTR and OCTR are safe and effective interventions for CTS. ECTR has benefits like faster recovery and improved cosmetic outcomes but requires higher technical proficiency and carries the risk of nerve injury. The choice of technique should consider patient preference, cost-effectiveness, and surgeon expertise.

19.
Cureus ; 16(5): e60878, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38910639

RESUMEN

Ischemic strokes (IS) in young adults often evade early detection, resulting in delayed diagnosis until complications arise. Cervical/vertebral artery dissection, a significant contributor to these strokes, presents with symptoms such as migraine with aura, severe headache, and neck pain, commonly overlooked due to their nonspecific nature. This review investigates early indicators of artery dissections, emphasizing their importance in diagnosis and exploring the correlation between methylenetetrahydrofolate reductase (MTHFR) gene C677T genotype polymorphism, hyperhomocysteinemia (HHCY), and IS in young adults. This systematic review encompasses a thorough analysis of 11 papers, including four observational studies, three case reports, three narrative reviews, and one experimental study, involving 4,840 patients aged 18-45 years. Findings reveal HHCY as a significant contributor to vascular damage and tissue ischemia leading to IS. The MTHFR gene C677T genotype polymorphism is closely associated with HHCY, often contributing to underdiagnosed strokes in young adults. Cervical/vertebral artery dissection may manifest as initial symptoms of neck pain or headache, remaining undiagnosed until imaging is conducted. Importantly, the review suggests that MTHFR gene polymorphism can be mitigated through simple supplementation with vitamin B12 and folates, serving as a valuable tool for primary prevention. Additionally, betaine, a methyl donor, was explored in severe MTHFR gene polymorphism cases resistant to conventional supplementation. In conclusion, recognizing the significance of early signs and symptoms, along with a high clinical suspicion, is crucial for preventing catastrophic outcomes, mortality, and morbidity associated with IS in young adults lacking traditional risk factors. The MTHFR gene C677T genotype polymorphism, a potential genetic cause, can be easily managed with simple measures but is often overlooked or underdiagnosed.

20.
J Family Community Med ; 31(3): 244-250, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39176016

RESUMEN

BACKGROUND: Pediatric Sleep Questionnaire (PSQ) is a valid, reliable tool for screening for sleep-related breathing disorders (SRBDs) translated into several languages since 2000. The diagnostic accuracy of an Arabic version of the PSQ has never been tested. Our aim was to translate the original version of PSQ into Arabic (Arabic-PSQ), validate it as a reliable screening tool, and compare it to the gold standard diagnostic method for SRBDs. MATERIALS AND METHODS: This was a prospective longitudinal study of 54 children (2-14 years) who were to undergo polysomnography (PSG). SRBD was assessed by administering the Arabic version of PSQ to the parents of these children. The validity and reliability of the Arabic-PSQ were assessed. Data were analyzed using Stata 16. Correlation between with polysomnographic indices and PSQ scores, as well as measurement of the diagnostic accuracy were determined. Receiver operating characteristic analysis between the mean PSQ scores and binary PSG results was done and the area under curve (AUC) value was calculated. RESULTS: Thirty-four (63%) children were diagnosed with obstructive sleep apnea by PSG (Apnea-Hypopnea Index [AHI] ≥1), 26 of whom were accurately identified with the Arabic-PSQ (76.5%). Arabic-PSQ showed comparable validity and reliability. Using a cutoff of 0.33, the score showed a significant correlation with AHI: Rs: 0.30 (P = 0.029). The sensitivity was 76.5%, the specificity was 50%, the positive predictive was 72.2%, the negative predictive value was 55.6%, the positive likelihood ratio was 1.63, and the negative likelihood ratio was 0.37. CONCLUSIONS: The Arabic-PSQ is a valid tool for the screening of Arabic-speaking populations for SRBD. It is valuable for directing the diagnostic approach in a timely and cost-effective manner.

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