Publications by authors named "Hessam Kashani"

Article Synopsis
  • Some recent studies found that benzodiazepines might help prevent nausea and vomiting after surgery, but doctors haven't added them to the official guidelines yet because they worry about side effects.
  • Researchers reviewed lots of studies and found that using benzodiazepines before or after surgery can lower the chances of feeling sick or throwing up.
  • The results from this research will help update future guidelines for doctors on how to prevent nausea and vomiting after surgery.
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Article Synopsis
  • Benzodiazepines, a type of medication, are often used during surgeries but might cause problems for older people, like confusion or delirium.
  • Researchers looked at many studies (43 in total) to see if using benzodiazepines during surgery really makes patients more likely to have delirium or be aware of what’s happening while they’re under anesthesia.
  • The results showed that benzodiazepines didn't significantly increase delirium risk but did help prevent patients from being aware during the surgery, meaning they worked well for reducing awareness without causing other major problems.
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Purpose: Many believe that blood pressure management during cardiac surgery is associated with postoperative outcomes. We conducted a systematic review and meta-analysis of randomized controlled trials (RCTs) to determine the impact of high compared with low intraoperative blood pressure targets on postoperative morbidity and mortality in adults undergoing cardiac surgery on cardiopulmonary bypass (CPB). Our primary objective was to inform the design of a future large RCT.

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Objective: To characterize the institutional oxygen management practices during cardiopulmonary bypass (CPB) in patients undergoing cardiac surgery, including any potential changes during an 8-year study period.

Design: A retrospective cohort study.

Setting: A tertiary care cardiac surgical program.

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Objective: To identify interventions for the treatment of acute ischemic stroke after cardiac surgery and to report the efficacy of these treatments.

Design: Systematic review and narrative synthesis PARTICIPANTS: Patients with ischemic stroke after cardiac surgery.

Interventions: Treatment efficacy of intra-arterial thrombolysis (IAT) and/or endovascular mechanical thrombectomy (EMT).

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Purpose: Blood transfusions are frequently administered in cardiac surgery. Despite a large number of published studies comparing a "restrictive" strategy with a "liberal" strategy, no clear consensus has emerged to guide blood transfusion practice in cardiac surgery patients. The purpose of this study was to identify, critically appraise, and summarize the evidence on the overall effect of restrictive transfusion strategies compared with liberal transfusion strategies on mortality, other clinical outcomes, and transfusion-related outcomes in adult patients undergoing cardiac surgery.

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Objective: To summarize the findings of randomized controlled trials (RCTs) on the efficacy and safety of vitamins and minerals for migraine prophylaxis.

Methods: We systematically searched bibliographic databases and relevant websites for parallel and crossover RCTs reporting efficacy and/or safety of vitamins and/or minerals for migraine prophylaxis. Our primary outcomes were migraine frequency (number of attacks) and duration (hours).

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Background: Randomized controlled trials (RCTs) on bone marrow stem cell (BMSC) therapy in ST-elevation myocardial infarction (STEMI) patients have reported conflicting results. Our main objective was to critically appraise and meta-analyze best-available evidence on efficacy and safety of intracoronary administration of autologous BMSC therapy in STEMI patients after primary percutaneous coronary intervention.

Methods: We conducted a search of MEDLINE, PubMed, EMBASE, CENTRAL, Global Health, CINAHL, and conference proceedings in February 2017.

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HMG-CoA reductase, the proximal rate-limiting enzyme in the mevalonate pathway, is inhibited by statins. Beyond their cholesterol lowering impact, statins have pleiotropic effects and their use is linked to improved lung health. We have shown that mevalonate cascade inhibition induces apoptosis and autophagy in cultured human airway mesenchymal cells.

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Autophagy and apoptosis are basic physiologic processes contributing to the maintenance of cellular homeostasis. Autophagy encompasses pathways that target long-lived cytosolic proteins and damaged organelles. It involves a sequential set of events including double membrane formation, elongation, vesicle maturation and finally delivery of the targeted materials to the lysosome.

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Background: There is considerable evidence which suggests a possible pathogenetic role for Staphylococcus aureus (S. aureus) in acne vulgaris.

Aim: The study was to determine S.

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The airway smooth muscle (ASM) plays an important role in the pathophysiology of asthma and chronic obstructive pulmonary disease (COPD). ASM cells express a wide range of receptors involved in contraction, growth, matrix protein production and the secretion of cytokines and chemokines. Transforming growth factor beta (TGF-β) is one of the major players in determining the structural and functional abnormalities of the ASM in asthma and COPD.

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Statins inhibit the proximal steps of cholesterol biosynthesis, and are linked to health benefits in various conditions, including cancer and lung disease. We have previously investigated apoptotic pathways triggered by statins in airway mesenchymal cells, and identified reduced prenylation of small GTPases as a primary effector mechanism leading to p53-mediated cell death. Here, we extend our studies of statin-induced cell death by assessing endpoints of both apoptosis and autophagy, and investigating their interplay and coincident regulation.

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Background And Aims: To introduce the possible role of hydroxyurea (HU), a well-characterized antineoplastic drug with established antiviral effects, in the treatment of chronic hepatitis B.

Methods: Four antiretroviral-naïve patients with chronic hepatitis B were enrolled in this limited pilot trial, and given 1000 mg/day of hydroxyurea for 4 weeks; then, the administration of the drug was suspended for 4 weeks. A clinical study and laboratory safety assessments and measurements of viral load were made at baseline, after drug therapy, and after one month suspension of the treatment

Results: All 4 patients showed a significant decrease in viral load after 4 weeks of hydroxyurea therapy and the viral load of 2 patients increased again after a 4-week suspension of hydroxyurea

Conclusions: Our data demonstrate that the old low-cost antineoplastic drug, hydroxyurea, efficiently blocks hepatitis B virus (HBV) replication.

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Background: To obtain normal references for growth and pubertal development in a given population, assessment of pubertal stages is of great importance. This study aimed to determine the age of appearance of secondary sexual characteristics in a representative sample of Iranian girls.

Methods: This cross-sectional study was conducted during 2005-2006 in 3192 girl students, aged 6-17 years, in Isfahan, Iran.

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