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  1. Article ; Online: Effect of ECG-gating Retinal Photographs on Retinal Vessel Caliber Measurements in Subjects with and without Type 2 Diabetes.

    Lal, Anchal / Dave, Neha / Gibbs, Oliver J / Barry, Michael Anthony Tony / Sood, Annika / Mitchell, Paul / Thiagalingam, Aravinda

    Current eye research

    2021  Volume 46, Issue 11, Page(s) 1742–1750

    Abstract: Purpose/Aim of this ... ...

    Abstract Purpose/Aim of this study
    MeSH term(s) Adult ; Cardiovascular Diseases/diagnostic imaging ; Cardiovascular Diseases/physiopathology ; Cross-Sectional Studies ; Diabetes Mellitus, Type 2/diagnostic imaging ; Diabetes Mellitus, Type 2/physiopathology ; Diabetic Retinopathy/diagnostic imaging ; Diabetic Retinopathy/physiopathology ; Electrocardiography/methods ; Female ; Humans ; Male ; Middle Aged ; Observer Variation ; Ophthalmoscopes ; Photography/methods ; Reproducibility of Results ; Retinal Artery/diagnostic imaging ; Retinal Artery/pathology ; Retinal Vein/diagnostic imaging ; Retinal Vein/pathology ; Surveys and Questionnaires
    Language English
    Publishing date 2021-05-26
    Publishing country England
    Document type Comparative Study ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 82079-9
    ISSN 1460-2202 ; 0271-3683
    ISSN (online) 1460-2202
    ISSN 0271-3683
    DOI 10.1080/02713683.2021.1927112
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Late Outcomes of Patients With Prehospital ST-Segment Elevation and Appropriate Cardiac Catheterization Laboratory Nonactivation.

    Faour, Amir / Pahn, Reece / Cherrett, Callum / Gibbs, Oliver / Lintern, Karen / Mussap, Christian J / Rajaratnam, Rohan / Leung, Dominic Y / Taylor, David A / Faddy, Steven C / Lo, Sidney / Juergens, Craig P / French, John K

    Journal of the American Heart Association

    2022  Volume 11, Issue 13, Page(s) e025602

    Abstract: Background Patients with suspected ST-segment-elevation myocardial infarction (STEMI) and cardiac catheterization laboratory nonactivation (CCL-NA) or cancellation have reportedly similar crude and higher adjusted risks of death compared with those with ... ...

    Abstract Background Patients with suspected ST-segment-elevation myocardial infarction (STEMI) and cardiac catheterization laboratory nonactivation (CCL-NA) or cancellation have reportedly similar crude and higher adjusted risks of death compared with those with CCL activation, though reasons for these poor outcomes are not clear. We determined late clinical outcomes among patients with prehospital ECG STEMI criteria who had CCL-NA compared with those who had CCL activation. Methods and Results We identified consecutive prehospital ECG transmissions between June 2, 2010 to October 6, 2016. Diagnoses according to the Fourth Universal Definition of myocardial infarction (MI), particularly rates of myocardial injury, were adjudicated. The primary outcome was all-cause death. Secondary outcomes included cardiovascular death/MI/stroke and noncardiovascular death. To explore competing risks, cause-specific hazard ratios (HRs) were obtained. Among 1033 included ECG transmissions, there were 569 (55%) CCL activations and 464 (45%) CCL-NAs (1.8% were inappropriate CCL-NAs). In the CCL activation group, adjudicated index diagnoses included MI (n=534, 94%, of which 99.6% were STEMI and 0.4% non-STEMI), acute myocardial injury (n=15, 2.6%), and chronic myocardial injury (n=6, 1.1%). In the CCL-NA group, diagnoses included MI (n=173, 37%, of which 61% were non-STEMI and 39% STEMI), chronic myocardial injury (n=107, 23%), and acute myocardial injury (n=47, 10%). At 2 years, the risk of all-cause death was higher in patients who had CCL-NA compared with CCL activation (23% versus 7.9%, adjusted risk ratio, 1.58, 95% CI, 1.24-2.00), primarily because of an excess in noncardiovascular deaths (adjusted HR, 3.56, 95% CI, 2.07-6.13). There was no significant difference in the adjusted risk for cardiovascular death/MI/stroke between the 2 groups (HR, 1.23, 95% CI, 0.87-1.73). Conclusions CCL-NA was not primarily attributable to missed STEMI, but attributable to "masquerading" with high rates of non-STEMI and myocardial injury. These patients had worse late outcomes than patients who had CCL activation, mainly because of higher rates of noncardiovascular deaths.
    MeSH term(s) Cardiac Catheterization ; Electrocardiography ; Emergency Medical Services/methods ; Humans ; Myocardial Infarction/diagnosis ; Myocardial Infarction/therapy ; ST Elevation Myocardial Infarction/diagnosis ; ST Elevation Myocardial Infarction/therapy ; Stroke
    Language English
    Publishing date 2022-06-29
    Publishing country England
    Document type Journal Article
    ZDB-ID 2653953-6
    ISSN 2047-9980 ; 2047-9980
    ISSN (online) 2047-9980
    ISSN 2047-9980
    DOI 10.1161/JAHA.121.025602
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Utility of prehospital electrocardiogram interpretation in ST-segment elevation myocardial infarction utilizing computer interpretation and transmission for interventional cardiologist consultation.

    Faour, Amir / Cherrett, Callum / Gibbs, Oliver / Lintern, Karen / Mussap, Christian J / Rajaratnam, Rohan / Leung, Dominic Y / Taylor, David A / Faddy, Steve C / Lo, Sidney / Juergens, Craig P / French, John K

    Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions

    2022  Volume 100, Issue 3, Page(s) 295–303

    Abstract: Objectives: We examined the appropriateness of prehospital cardiac catheter laboratory activation (CCL-A) in ST-segment elevation myocardial infarction (STEMI) utilizing the University of Glasgow algorithm (UGA) and remote interventional cardiologist ... ...

    Abstract Objectives: We examined the appropriateness of prehospital cardiac catheter laboratory activation (CCL-A) in ST-segment elevation myocardial infarction (STEMI) utilizing the University of Glasgow algorithm (UGA) and remote interventional cardiologist consultation.
    Background: The incremental benefit of prehospital electrocardiogram (PH-ECG) transmission on the diagnostic accuracy and appropriateness of CCL-A has been examined in a small number of studies with conflicting results.
    Methods: We identified consecutive PH-ECG transmissions between June 2, 2010 and October 6, 2016. Blinded adjudication of ECGs, appropriateness of CCL-A, and index diagnoses were performed using the fourth universal definition of MI. The primary outcome was the appropriate CCL-A rate. Secondary outcomes included rates of false-positive CCL-A, inappropriate CCL-A, and inappropriate CCL nonactivation.
    Results: Among 1088 PH-ECG transmissions, there were 565 (52%) CCL-As and 523 (48%) CCL nonactivations. The appropriate CCL-A rate was 97% (550 of 565 CCL-As), of which 4.9% (n = 27) were false-positive. The inappropriate CCL-A rate was 2.7% (15 of 565 CCL-As) and the inappropriate CCL nonactivation rate was 3.6% (19 of 523 CCL nonactivations). Reasons for appropriate CCL nonactivation (n = 504) included nondiagnostic ST-segment elevation (n = 128, 25%), bundle branch block (n = 132, 26%), repolarization abnormality (n = 61, 12%), artefact (n = 72, 14%), no ischemic symptoms (n = 32, 6.3%), severe comorbidities (n = 26, 5.2%), transient ST-segment elevation (n = 20, 4.0%), and others.
    Conclusions: PH-ECG interpretation utilizing UGA with interventional cardiologist consultation accurately identified STEMI with low rates of inappropriate and false-positive CCL-As, whereas using UGA alone would have almost doubled CCL-As. The benefits of cardiologist consultation were identifying "masquerading" STEMI and avoiding unnecessary CCL-As.
    MeSH term(s) Bundle-Branch Block ; Cardiologists ; Computers ; Electrocardiography ; Emergency Medical Services/methods ; Humans ; Referral and Consultation ; Retrospective Studies ; ST Elevation Myocardial Infarction/diagnosis ; ST Elevation Myocardial Infarction/therapy ; Treatment Outcome
    Language English
    Publishing date 2022-06-29
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1459995-8
    ISSN 1522-726X ; 1522-1946
    ISSN (online) 1522-726X
    ISSN 1522-1946
    DOI 10.1002/ccd.30300
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Real-world use of ticagrelor versus clopidogrel in percutaneous coronary intervention-treated ST-elevation myocardial infarction patients: A single-center registry study.

    Hee, Leia / Gibbs, Oliver J / Assad, Joseph G / Sharma, Lokesh D / Hopkins, Andrew / Juergens, Craig P / Lo, Sidney / Mussap, Christian J

    Journal of the Saudi Heart Association

    2019  Volume 31, Issue 4, Page(s) 151–160

    Abstract: Objectives: The primary aim was to investigate the efficacy and safety of dual antiplatelet therapy (DAPT) using ticagrelor (T-DAPT) versus clopidogrel (C-DAPT) in a real-world ST-elevation myocardial infarction (STEMI) population.: Methods: We ... ...

    Abstract Objectives: The primary aim was to investigate the efficacy and safety of dual antiplatelet therapy (DAPT) using ticagrelor (T-DAPT) versus clopidogrel (C-DAPT) in a real-world ST-elevation myocardial infarction (STEMI) population.
    Methods: We retrospectively analyzed 655 consecutive patients having primary percutaneous coronary intervention (PCI) for STEMI at Liverpool Hospital, Sydney, Australia (from January 2013 to April 2016). Medical and procedural therapies were at clinician discretion. Patient data were retrieved from hospital records and primary clinicians.
    Results: T-DAPT (65%) was used more frequently, and in patients with lower mean CRUSADE (Can Rapid Risk Stratification of Unstable Angina Patients Suppress Adverse Outcomes with Early Implementation of the American College of Cardiology/American Heart Association Guidelines) score, than C-DAPT (24.6 vs. 32.2;
    Conclusion: Ticagrelor was preferred in low bleeding risk patients, which may have contributed to less BARC 3-5 bleeding and lower mortality for T-DAPT. Thus, bleeding mitigation is a clinical priority when selecting DAPT for PCI-treated STEMI patients. Continuation of initial DAPT regimen was typical, but early switching from clopidogrel to ticagrelor shows willingness to optimize DAPT. Patients with very low CRUSADE scores (<21.5) may be appropriate for switching to a potent P2Y12 inhibitor.
    Language English
    Publishing date 2019-05-31
    Publishing country Saudi Arabia
    Document type Journal Article
    ZDB-ID 2515647-0
    ISSN 1016-7315
    ISSN 1016-7315
    DOI 10.1016/j.jsha.2019.05.005
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Comparing the clinical and prognostic impact of proximal versus nonproximal lesions in dominant right coronary artery ST-elevation myocardial infarction.

    Femia, Giuseppe / Faour, Amir / Assad, Joseph / Sharma, Lokesh / Idris, Hanan / Gibbs, Oliver / Pender, Patrick / Leung, Dominic / Hopkins, Andrew / Rajaratnam, Rohan / P Juergens, Craig / Mussap, Christian / K French, John / Lo, Sidney

    Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions

    2020  Volume 97, Issue 5, Page(s) E646–E652

    Abstract: Objective: To evaluate the prognostic significance of culprit lesion location in dominant right coronary artery (RCA) ST-elevation myocardial infarction (STEMI).: Background: In RCA STEMI, proximal culprit lesions have been shown to have higher rates ...

    Abstract Objective: To evaluate the prognostic significance of culprit lesion location in dominant right coronary artery (RCA) ST-elevation myocardial infarction (STEMI).
    Background: In RCA STEMI, proximal culprit lesions have been shown to have higher rates of acute complications such as bradycardia and cardiogenic shock (CS) but data on mortality is limited.
    Methods: We retrospectively identified and analyzed data from consecutive patients with a dominant RCA STEMI who underwent either primary or rescue percutaneous coronary intervention (PCI) between January 2003 and December 2016. We compared the rates of sustained ventricular tachycardia (VT), CS, intra-aortic balloon pump (IABP), temporary cardiac pacing (TCP) and death between culprit lesions located proximal and distal to the origin of the last right ventricular (RV) marginal artery >1 mm in diameter.
    Results: The 939 patients were included; 599 (63.7%) had a proximal lesion and 340 (36.3%) had a nonproximal lesion. The 801 (85.3%) underwent primary PCI and 138 (14.7%) underwent rescue PCI. There was no difference in first medical contact to balloon or fibrinolysis times between the groups; p = .98 and .71. There was no significant difference in the rate of sustained VT (3.0%vs. 3.2%, p = .85) but proximal lesions were more likely to develop CS (10.9%vs. 5.8%, p = .01), require IABP (7.3%vs.2.9%, p < .01) and TCP (6.3%vs. 2.6%, p = .01). Thirty-day mortality was higher for proximal lesions (5.0%vs. 0.9%, p < .01) particularly for those with CS (35.3%vs. 10.0%, p = .05).
    Conclusion: Culprit lesions located proximal to the origin of the last RV marginal artery had a higher rate of acute complications such as CS and mortality.
    Language English
    Publishing date 2020-09-01
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1459995-8
    ISSN 1522-726X ; 1522-1946
    ISSN (online) 1522-726X
    ISSN 1522-1946
    DOI 10.1002/ccd.29245
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Type-II myocardial infarction and chronic myocardial injury rates, invasive management, and 4-year mortality among consecutive patients undergoing high-sensitivity troponin T testing in the emergency department.

    Etaher, Aisha / Gibbs, Oliver J / Saad, Yousef M / Frost, Steven / Nguyen, Tuan L / Ferguson, Ian / Juergens, Craig P / Chew, Derek / French, John K

    European heart journal. Quality of care & clinical outcomes

    2019  Volume 6, Issue 1, Page(s) 41–48

    Abstract: Aims: As assessment of patients with suspected acute coronary syndromes (ACS) in emergency departments (EDs) represents a major workload because high-sensitivity troponin (HsTn) T and I levels are frequently measured, and a minority of patients have ... ...

    Abstract Aims: As assessment of patients with suspected acute coronary syndromes (ACS) in emergency departments (EDs) represents a major workload because high-sensitivity troponin (HsTn) T and I levels are frequently measured, and a minority of patients have final diagnosis of myocardial infarction (MI). We determined the relative frequencies of three patients groups: Type-I MI, Type-II MI (including acute myocardial injury).
    Methods and results: Among 2738 consecutive patients with suspected ACS presenting to ED at Liverpool Hospital, Australia, between March and June 2014. We studied the use of invasive and pharmacological therapies, and 4-year outcomes. Adjudication of MI was according to the 4th universal definition as follows: (i) Type-I MI; (ii) Type-II MI (including acute myocardial injury), and (iii) chronic myocardial injury. Of 995 patients (36%) [median age 76 years (interquartile range 65-83)] with ≥2 HsTnT measurements and one >14 ng/L, 727 (73%) had chronic myocardial injury, 171 (17%) had Type-II MI, and 97 (9.7%) had Type-I MI; respective late mortality rates to 48 months were 33%, 43%, and 14% (P < 0.001). In-hospital angiography rates were 95% for patients with Type-I MI, [62% had percutaneous coronary intervention (PCI)] 24% (7% PCI) for those with Type-II MI, and 3.4% for chronic myocardial injury. On Cox modelling for mortality relative to Type 1 MI, adjusted hazard ratios were 1.94 [95% confidence intervals (CIs) 1.06-3.57]; P = 0.032 for Type 2 MI, and for chronic myocardial injury 1.14 (95% CIs 0.64-2.02); P = 0.66.
    Conclusion: Among unselected patients undergoing HsTnT testing in EDs, Type-II MI including acute myocardial injury was more common than Type-I MI. Chronic myocardial injury, which occurred in three of four patients. Whereas patients with Type-II MI had higher late mortality than those with Type-I MI, after multivariable analyses mortality rates were marginally different.
    MeSH term(s) Acute Coronary Syndrome/diagnosis ; Acute Coronary Syndrome/mortality ; Acute Coronary Syndrome/surgery ; Aged ; Aged, 80 and over ; Coronary Angiography ; Emergency Service, Hospital ; Female ; Follow-Up Studies ; Humans ; Male ; Middle Aged ; Myocardial Infarction/diagnosis ; Myocardial Infarction/mortality ; Myocardial Infarction/surgery ; Percutaneous Coronary Intervention ; Retrospective Studies ; Risk Factors ; South Australia/epidemiology ; Survival Rate/trends ; Time Factors ; Troponin T/blood
    Chemical Substances Troponin T
    Language English
    Publishing date 2019-05-17
    Publishing country England
    Document type Journal Article
    ZDB-ID 2823451-0
    ISSN 2058-1742 ; 2058-5225
    ISSN (online) 2058-1742
    ISSN 2058-5225
    DOI 10.1093/ehjqcco/qcz019
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: NT-proBNP Changes in Patients with Ascites during Large Volume Paracentesis.

    Nguyen, Vi / Zielinski, Rob / Harnett, Paul / Miller, Katherine / Chan, Henry / Vootakuru, Nikitha / Acharya, Priya / Khan, Montaha / Gibbs, Oliver / Gupta, Sarika / Devi, Anjla / Phillips, Shani / George, Jacob / van der Poorten, David

    ISRN hepatology

    2013  Volume 2013, Page(s) 959474

    Abstract: Background. N-terminal probrain natriuretic peptide (NT-proBNP) is a hormone involved in the regulation of cardiovascular homeostasis. Changes in serum NT-proBNP during large volume paracentesis (LVP) in patients with ascites have never before been ... ...

    Abstract Background. N-terminal probrain natriuretic peptide (NT-proBNP) is a hormone involved in the regulation of cardiovascular homeostasis. Changes in serum NT-proBNP during large volume paracentesis (LVP) in patients with ascites have never before been examined. Aims. To determine if significant changes in serum NT-proBNP occur in patients undergoing LVP and the associated clinical correlates in patients with cirrhosis. Method. A total of 45 patients with ascites were prospectively recruited. Serum NT-proBNP, biochemistry, and haemodynamics were determined at baseline and at key time points during and after paracentesis. Results. 34 patients were analysed; 19 had ascites due to cirrhosis and 15 from malignancy. In those with cirrhosis, NT-proBNP decreased by 77.3 pg/mL at 2 L of drainage and 94.3 pg/mL at the end of paracentesis, compared with an increase of 10.5 pg/mL and 77.2 pg/mL in cancer patients at the same time points (P = 0.05 and P = 0.03). Only congestive cardiac failure (CCF) was an independent predictor of significant NT-proBNP changes at the end of drainage in cirrhotic patients (P < 0.01). There were no significant changes in haemodynamics or renal biochemistry for either group. Conclusion. Significant reductions in serum NT-proBNP during LVP occur in patients with cirrhosis but not malignancy, and only comorbid CCF appeared to predict such changes.
    Language English
    Publishing date 2013-09-22
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2719566-1
    ISSN 2314-4041
    ISSN 2314-4041
    DOI 10.1155/2013/959474
    Database MEDical Literature Analysis and Retrieval System OnLINE

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