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Jun 2016 DOI 10.14302/issn.2329-9487.jhc-16-931
F.Babbs CharlesCorresponding author
Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana, USA
Background: This brief report presents a potential new technique for locating the sites of origin of focal atrial tachycardias from standard 12-lead electrocardiograms. Methods: Estimated P wave vector coordinates are derived from leads I, aVF, V1 and V2, and mapped to a three dimensional coordinate system in space. A simple graphical method is used to find the back projection of the P wave vector onto the surface of atrial muscle to estimate the most likely site of origin of the tachycardia. Results: Graphical back projection correctly identified foci of atrial tachycardias in 19 of 19 cases described in the most complete available published study. Conclusions: Clinical studies are indicated to validate this simple method for initial noninvasive evaluation of candidates for ablation therapy.
Jan 2020 DOI 10.14302/issn.2379-7835.ijn-20-3171
Ozcelik FatihCorresponding author
University of Health Sciences, Sultan 2. Abdulhamid Han Training and Research Hospital, Department of Medical Biochemistry, Istanbul, Turkey
Biogenic amines, which are responsible for the realization of many physiological conditions of our body, are compounds that can be produced by microorganisms especially in fermented foods with high protein content. They can have harmful effects on human health only when taken in high amounts with food. However, in individuals with impaired anti-toxic metabolism, which is responsible for detoxification, even lower amounts may cause toxic effects. The most common health effects are nausea, vomiting, severe headaches, hypotension, hypertension, tachycardia, various allergic reactions, abdominal pain and death in more severe cases. For these reasons, legislations on biogenic amines in foods have been established with some restrictions. Food producers have been asked to comply with these legislations. However, despite all precautions, biogenic amines in foods have not been completely removed. Further research is still needed to find effective solutions to prevent biogenic amine formation. In addition, consumers need to be made aware of this issue.
Feb 2014 DOI 10.14302/issn.2324-7339.jcrhap-12-157
Aryal NirmalCorresponding author
Division of Applied Health Sciences, Forester Hill Campus, University of Aberdeen, Aberdeen, Scotland, UK
Background: Human Immunodeficiency Virus (HIV) and antiretroviral therapy (ART) are found to be strongly associated with cardiovascular diseases. Data are sparse on the prevalence and distribution of cardiovascular risk factors among people being treated for HIV in South Asia region. Methods: A cross-sectional study of 103 HIV patients (51 women and 52 men) attending routine follow-up consultations at the largest ART centre in Nepal was conducted. Data on several cardiovascular risk factors were collected through interview questionnaires, biophysical measurements and consulting medical records. Results: The most common cardiovascular risk factors observed were central obesity 34.6% 95% Confidence Interval (CI): 25.3% to 43.9%, chronic kidney disease {20.7% (95% CI: 11.6% to 29.7%)} and tachycardia {20.6% (95% CI: 12.7% to 28.5%)}. Females were significantly more likely to have central obesity (male 9.8% vs. female 60%, p=0.016) and chronic kidney disease (male 15.4% vs. female 26.3%, p=0.003) as compared to the males. Participants were fairly active but a large proportion, especially men, had smoked {65% (95% CI: 57%-72.3%)}, used tobacco products {66% (95% CI: 56.4%-74.4%)} or drugs (53.8% of the men) and consumed alcohol {60.2% (95% CI: 50.5%-69.1%)}. Conclusion: A high prevalence of several cardiovascular risk factors was observed among patients being treated for HIV in Nepal. Further larger studies are warranted to better understand the relevance and public health impact of cardiovascular risk factors in this region.