Search results for “Angiography

About 9 results in articles

Open Access Pub publishes peer-reviewed, free-to-read open-access articles. Showing articles matching Angiography — open any to read the full text, or download the PDF or XML.

9 articles

The Additional Diagnostic Value of the Three-dimensional 3D ultrasound and Doppler angiography imaging  in the prenatal diagnosis of left isomerism

Dec 2020 DOI 10.14302/issn.2641-5518.jcci-20-3636
El Guindi WaelCorresponding author Department of Obstetrics and Gynecology, Franck Joly Hospital, Saint-Laurent-du-Maroni, France

Objective To highlight the value of 3D ultrasound and Doppler angiography imagingin the prenatal assessment of left fetal isomerism. Methods A retrospective offline analysis of volume datasets of 3 fetuses with left atrial isomerism by 3D ultrasound was conducted. Conclusion We believe that parasagittal view demonstrating the heart and the abdominal vessels is easy to obtain and interpret, offer a realistic anatomic image, needs no mental reconstruction of spatial relationships and is very beneficial mainly in detecting the situs. We propose to use 3D ultrasound systematically in suspected cases of atrial isomerism, and better understand and interpret fetal anatomy.

Evaluation of a Stroke Protocol Using Computed Tomography Angiography for the Evaluation of Acute Ischemic Stroke Patients

Jan 2017 DOI 10.14302/issn.2470-5020.jnrt-16-1415
W. Schrock JonCorresponding author Associate Professor, Emergency Medicine Case Western Reserve University

Objectives: Computed tomography angiography (CTA) provides early assessment of cerebral vasculature in ED patients presenting with Acute Ischemic Stroke (AIS). Prior studies using 4 row detector CT scanners have suggested that results may be used to determine who receives thrombolytics (tPA). We sought to evaluate the rate of normal CTA and the use of tPA in AIS patients with and without blockages using modern CT technology. Patients and Methods: We conducted a retrospective cohort study of all code stroke patients presenting to our ED over a 3 year period. Inclusion criteria included an ED and neurology diagnosis of AIS with a CTA performed at presentation. All patients had a NIHSS score recorded at presentation and underwent imaging using a 64 row detector scanner with 50cc of non-ionic contrast. Demographic, imaging, and clinical data were collected. Modified Rankin Scores (mRS) were assigned at hospital discharge. Good clinical outcome was defined as a mRS of 0-2. Data are reported as frequencies and medians with interquartile ranges (IQR) as appropriate. Rates of tPA use were evaluated using χ2 testing. Rates of good outcomes were evaluated using odds ratios. Results: A total of 205 subjects met inclusion for analysis of which 103 (50%) were male and 109 (54%) had no blockage on CTA. The median NIHSS score and mortality rates were 14 (IQR 8-19), 14 (14%) with CTA blockage, and 4 (IQR 2-7), 2 (2%) for those without. Of those AIS with a blockage on CTA 46 (48%) were treated with tPA including 29 who were treated with intra-arterial therapy as well while only 13 (13%) of patients without a blockage were treated with tPA. Post tPA bleeding occurred in 12 (13%) patients with blockage on CTA and in 0 patients without blockage. Use of tPA was significantly more frequent in patients with a blockage on CTA, P <0.001. Conclusion: More than half of our AIS patients presenting through our ED have no blockage on CTA. Inter-rater reliability among neuroradiologists evaluating for large vessel occlusion appears to be very good. Patients with AIS and no blockage on CTA have less severe strokes and are less likely to receive tPA. Given the new guidelines recommending endovascular treatment for AIS we expect more emergency departments to begin performing CTA.

Ophthalmic Science Open Access

Persistent Neovascular Exudation in Patients with Exudative Age-Related Macular Degeneration who have Choroid Imaging Biomarkers of Non-Neovascular Choroidal Pathology: Simultaneous Choroidal Hyperpermeability and Angiogenesis

Nov 2025 DOI 10.14302/issn.2470-0436.jos-25-5503
H. Nelson MarkCorresponding author

Purpose Create a new diagnostic and therapeutic framework for patients with Exudative Age-Related Macular Degeneration (ARMD) and choroid imaging biomarkers of non-neovascular choroidal pathology who have persistent neovascular exudation during the course of monotherapeutic interventions. Methods Retrospective, longitudinal case series study of 25 eyes from 23 patients with the referral diagnoses of treatment resistant Exudative ARMD who had persistent neovascular exudation despite various monotherapies. Inclusion criteria required choroidal imaging biomarkers of non-neovascular pathology including a thickened subfoveal choroid (greater than 300 microns) and vessels (subjectively dilated choroidal vessels in Haller’s layer) on Optical Coherent Tomography (OCT), choroidal neovascularization on IVFA and OCT Angiography (OCTA), as well choroidal leakage noted on indocynanine green videoangiography (ICG). Treatment consisted of OCTA and ICG - Directed Photodynamic Therapy (PDT) Triple Therapy, hereafter described as Combination Therapy, to areas of choroidal hyperpermeability and choroidal neovascularization. Combination therapy consisted of an anti-Vascular Endothelial Growth Factor (VEGF) intravitreal injection on Day 0 followed by half-fluence PDT and 2 mg intravitreal triamcinolone acetonide on Day 3-14. Results All study patients had treatment resistant Exudative ARMD defined as persistent subretinal and/or intraretinal fluid during their course of monotherapeutic interventions. Complete resolution of all exudation occurred in 23 eyes (92.0%) at 8 weeks. The mean duration of action was 155.6 weeks, with 72.0% of eyes leak free greater than 100 weeks. The mean vision at baseline was 0.46 ± 0.42 LogMAR, best corrected visual acuity (BCVA). 8 weeks after treatment, the vision was 0.35 ± 0.38 LogMar, an improvement of over one line, and this was maintained at one year. The baseline central subfield thickness (CST) was 296.4 ± 136.1 microns and improved by 111.4 ± 105.4 microns at 8 weeks after treatment. Treatment duration was negatively associated with the Caucasian race. Conclusions Patients with subretinal and/or intraretinal fluid secondary to Exudative ARMD should have a complete baseline multimodality imaging study to confirm the presence of neovascularization and whether choroidal hyperpermeability coexists. This study shows that patients with Exudative ARMD and persistent neovascular exudation despite monotherapuetic interventions often have choroidal biomarkers of non-neovascular choroidal pathology and that ICG and OCTA-directed PDT Triple Therapy resulted in complete resolution of all exudation in 92.0% of patients at 8 weeks with a reduction in central subfield thickness (CST) of 111.4 microns. The vision improvement at 8 weeks was 0.11 ± 0.38 LogMar and was sustained over 1 year. The mean duration of action was 155.6 weeks, with 72.0% of eyes leak free greater than 100 weeks. Additionally, this study shows that the treatment that addresses both pathological processes is successful and should be considered as a primary protocol when the biomarkers are present at baseline or as a secondary protocol if indeed the neovascular leakage is persistent despite monotherapy. Summary Patients with an Exudative ARMD with persistent neovascular exudation despite anti-VEGF monotherapy and who have imaging biomarkers of non-neovascular choroidal pathology often have two pathophysiological processes: choroidal hyperpermeability and angiogenesis. A proposed framework provides the rationale for OCTA and ICG-directed PDT Triple Therapy which successfully resolves 92% of the leakage that was persistent after various monotherapeutics.

A 5 years old female child recovered from Moyamoya Disease with Unani formulation: A Case Report

Mar 2023
Md. Shafat KarimCorresponding author

Moyamoya disease is a very rare chronic circulatory occlusive disorder of the blood vessels of the brain, in which patients complain of headache, seizure, weakness, and sometimes paralysis. A 5 years old female child with a complaint of headache and seizure was admitted elsewhere and during the treatment, she was diagnosed with Moyamoya disease. Further, she went to AIIMS Patna, where the neurosurgeon advised Digital Subtraction Angiography (DSA) and after the final diagnosis, they suggest the surgical intervention of the brain. During the search for an alternative treatment, they consulted my center for Unani treatment. We advised a semiliquid Unani polyherbal formulation containing Gule Banafsha (Viola odorata), Ustukhuddoos(Lavandula stoechas), and Nilofer (Nymphaea alba Linn) for three months. After the completion of the treatment schedule, she went for DSA again in Patna AIIMS and they find that there is no sign of occlusion in the blood vessels of the brain. The patient has no complaints and the report also showed that she gets improved. 

A Clinical, Electrocardiographic and Echocardiographic Comparison of Patients with Single Vs Multivessel Disease Presenting with Acute Coronary Syndromes

Sep 2022 DOI 10.14302/issn.2329-9487.jhc-22-4252
Kumari Nuthalapat RamaCorresponding author Additional Professor of Cardiology, Department of Cardiology, Nizams institute of medical sciences, Panjagutta, Hyderabad, Telangana state, India

Background Prevalence of coronary artery disease is between 7-13 percent in urban and 2-7 % in rural India1. The alarm in rise in the prevalence of coronary risk factors like diabetes, hypertension, dyslipidemia, smoking, central obesity and physical inactivity2. The correlation between these risk factors and the severity of coronary atherosclerosis, assessed by angiography which may be either single or multivessel is less consistent with studies reporting conflicting results 3,4. Therefore our study aims to understand the proper correlation between risk factors and severity of coronary artery disease in an Indian population Methods This study was conducted in the department of cardiology, NIMS hospital Hyderabad which receives patients from the urban as well as rural areas of Telangana. the patients admitted in the department of cardiology, NIMS hospital Hyderabad that presented with acute coronary syndromes and diagnosed to have coronary artery disease (single vessel/multivessel disease) on coronary angiography taken for study. Sample Size is 150 Results Among the 150 subjects, males were 111(74%) and females were 39(26%). Mean age of the study population is 55.2 ± 11.4. Among SVD group 73.65% were males &26.3% were females. Among MVD group 76.2% were males & 23.7% were females. Mean age for SVD was 53±14.4 years, while mean age foe MVD was 58.6±14.5 years. For ACS mean age of presentation for females is 60.7±11.4 and for males mean age of presentation is 55.1±12.6. MVD (57.2%) were more common among smokers than SVD. In <45 years age group SVD (69.2%) were more common than MVD (30.8%). In 45- 70 years age group and >70 years age group MVD were more common than SVD with 69.6% and 66.6% respectively, which is statistically significant. MVD (60%) were more common among hypertensives than SVD. Among non-hypertensives MVD (41.8%) was less common than SVD (58.2%) MVD was common among all age groups, which is statistically signicant. Among STEMI group SVD (58.3%) was more common than MVD (41.7%). Among NSTEMI group MVD (62%) was more common than SVD (38%).Correlation between groups was statistically significant. Among SVD study group, LVEF was commonly between 30-45% & very few with LVEF <30% MVD was associated with more severe LV dysfunction as compared to SVD in acute MI. The difference in ejection fraction between the two groups was statistically significant P value=0.0002. In hospital MACE Among SVD there was 1 MI (due to stent thrombosis) who had to TVR (primary PCI) & rest were asymptomatic and discharged in normal state MVD there were in hospital deaths (due to refractory cardiogenic shock) rest were asymptomatic and were discharged in normal state. This difference between the two groups was statistically insignificant. Conclusion Multivessel disease in ACS were seen more commonly among elderly as compared to young subjects where single vessel disease were more common. Females especially elderly more commonly have multivessel disease. Mean age for multivessel disease was higher than single vessel disease. Among <45 years age group, SVD was more prevalent among smokers, obese and physically active. Multi vessel disease is more prevalent among patients with risk factors like diabetes, hypertension, dyslipidemia and physically inactive. Subjects with family history of premature CAD presented early and correlated well with prevalence of SVD.NSTEMI presented more with multi vessel disease. In echocardiographic wall motion analysis, a depressed regional segment of infarcted area with remote hyperkinesis predicted SVD where as remote area hypokinesis predicts more multivessel disease. In hospital outcomes were seen among multi vessel disease as compared to single vessel disease although not statistically significant.

Variations in Diameter of the Left Coronary Artery and its Main Branches among Adult Population of Khartoum State, Sudan

Mar 2021 DOI 10.14302/issn.2329-9487.jhc-21-3754
Abdalla AbuzerCorresponding author Department of Anatomy, Faculty of Medicine, Jazan University, Jazan, Saudi Arabia

Themain left coronary artery and its branches have wide variability in its morphology regarding caliber, as seen through angiographic imaging. This study aims to determine the diameters of the left coronary artery and its branches among the Sudanese population & to correlate these diameters and the personal and health data. Angiography of 441 patients of both sexes was used in this study. Personal and health information was obtained from the records. We found that the left coronary artery's diameter was between 2.90- 4.90mm, with an average of 3.96mm. The diameter of the left circumflex artery in the range between 1.70- 4.70mm, with an average of 2.73mm, and that of the anterior descending artery in the range between 1.20- 4.70mm, with an average of 2.78mm. We correlated the diameters of the three arteries and the variables of age, gender, BMI, coronary artery disease, smoking habits, and hypertension. Wefound many correlations to be significant. We concluded that the diameters of the left coronary artery and its branches are affected by age, gender, BMI, coronary artery disease, smoking habits, and hypertension.

Percutaneous Intervention for Quadrifurcation Lesion of the Left Main Coronary Artery  

Dec 2019 DOI 10.14302/issn.2641-5518.jcci-19-3133
Sanikidze TamarCorresponding author Tbilisi State Medical University, Tbilisi, Georgia

To demonstrate that percutaneous coronary intervention (PCI) may in some cases be a safe option for patients with a high-risk surgical category, we report a complex clinical case of revascularization of multivessel coronary artery disease including left main coronary artery (LMCA) quadrifurcation. Methods For safety reasons, PCI was done in 2 separate sessions (staged PCI). Stenting of the LMCA quadrifurcation was performed using different stenting techniques in combination: modified balloon mini crush stenting technique was used - for LMCA and intermediate artery (IMA) stenting; modified balloon crush stenting technique was used for LMCA, circumflex artery (CX) and first obtuse marginal branch (OM1) stenting; provisional stenting technique was used for CX stenting, followed by sequential kissing balloon post-dilatation technique between LMCA and every branch; proximal optimization technique (POT) was performed in the LMCA. Left anterior descending artery (LAD), intermediate artery, circumflex artery, first obtuse marginal branch, left main coronary artery and its quadrifurcation were stented with 5 drug-eluting stents (DES) (Resolute Integrity, Medtronic); right coronary artery (RCA) was stented with 3 bare-metal stents (BMS) (Rebel, Boston Scientific). Results The interventions ended without complications, the ejection fraction increased from 35% to 48%, congestive heart failure functional class decreased to class I.  Subsequent coronary angiography, eight months after the last PCI, revealed patent stents with mild, nonsignificant restenosis. More than three years after the intervention, the patient has no complaints (according to MACE). Conclusions It should be considered that in case of the selection of suitable patients and the use of the appropriate revascularization technique, LMCA quadrifurcation lesion can be successfully treated with PCI.

An Unexpected Etiology of Myocardial Ischemia in Young

Apr 2019 DOI 10.14302/issn.2329-9487.jhc-19-2719
Bouomrani SalemCorresponding author Department of Internal medicine. Military Hospital of Gabes. Gabes 6000. Tunisia

Introduction The cardiac localization of hydatid cyst (HC) is rare and little known. It is exceptionally primary and isolated. Myocardial ischemia remains an exceptional and unusual manifestation of this localization. We report the original observation of cardiac HC revealed by acute myocardial ischemia in a young subject. Observation A 35-year-old patient with no notable pathological history was admitted to our department via the emergency room for acute anterior chest pain. The somatic examination was without abnormalities as well as the baseline biological tests. The electrocardiogram demonstrated epicardial ischemia in the infero-lateral territory without other abnormalities. The cardiac troponin I was slightly elevated (32ng/l, N<19ng/l). Subsequent controls after 30min, 60min and 180min did not show significant variations. Subsequent investigations (CT, coro-CT, coronary angiography) led to the diagnosis of intramyocardial HC of the left ventricle, with no abnormalities of the coronary arteries. After surgical excision, the evolution was favorable with normalization of the electrocardiogram and the troponin Ic. Conclusion Cardiac localization of this parasitosis is exceptional and characterized by an important clinical polymorphism making its diagnosis a real challenge. It seems useful to discuss the diagnosis of cardiac HC in front of any unexplained electrocardiogram abnormality occurring in endemic zone.

Localization of Angina Related Artery by Admission ECG in Unstable Angina and NSTEMI Patients

Mar 2016 DOI 10.14302/issn.2329-9487.jhc-13-335
P. Desai ArpanCorresponding author Interventional Cardiologist, Vadodara, Gujarat, India.

Objective: To find out the diagnostic accuracy of admission ECG against coronary angiography (CAG) to predict the ARA in patients with USAP /NSTEMI. Background: In USAP even though multiple active plaques are documented, one critical lesion would be responsible for the index episode of angina. Contrary to STEMI there is no standard methodology to identify the Angina related artery (ARA) in USAP.Therefore we plan to determine whether  admission  ECG could  predict the ARA  in patients with USAP/NSTEMI. Patients and Methods: 250 eligible patients with USAP/NSTEMI undergoing coronary angiography were enrolled in the study. After locating the ARA , the patient’s admission ECG  was compared with CAG finding  to study  whether  it has  any  predictive  value  for identifying  ARA. Results: Sensitivity of the admission ECG for LAD as ARA was 73.6%, Specificity was 93.5%, PPV was 90%, NPV was 81.8%, +LR 10.4, Posterior probability 0.89,  -LR 0.29, Posttest odds 0.22. Similarly for RCA and LCx ,Sensitivity was 63.1%, Specificity was 93.7%, PPV was 90.5%, NPV was 72.7%, +LR 9, Posterior Probability 0.89, -LR 0.35, Posttest odds 0.33. For the LM and TVD, Sensitivity was 66.6%, Specificity was 98.5%, PPV was 91.4%, and NPV was 92.5%, +LR 33, Posterior Probability 0.89, -LR 0.33, Posttest odds 0.08. Conclusion: With high +LR, Admission ECG is moderately sensitive and highly specific for detecting culprit artery.

Frequently asked questions

Are these articles peer-reviewed?
Yes. Articles published at Open Access Pub go through single-blind peer review (double-blind on request) under an editorial board before publication.
Are the articles free to read?
Yes. Every article is open access — read the full text online for free and download the PDF or XML, with no paywall or subscription.
How do I cite an article?
Use the DOI shown on each result and on the article page; it is the permanent, citable link to the article.
How do I read or download an article?
Click "Read full text" to open the article HTML, or use the PDF / XML buttons on each card to download it.