scholarly journals Evaluation of left ventricular systolic function by Myocardial Deformation Imaging in asymptomatic HIV patients

2019 ◽  
Vol 16 (2) ◽  
pp. 11-15
Author(s):  
Kunjang Sherpa ◽  
Ram Kishor Sah ◽  
Arun Maskey ◽  
Rabi Malla ◽  
Deewakar Sharma ◽  
...  

Background and Aims: Despite improvements in clinical care, evidence from both industrialized and developing countries indicates that the prevalence of subclinical cardiac dysfunction in individuals with well-controlled HIV infection may approach 50% and represent a newly recognized comorbid condition. The aim of our study was to reveal abnormalities in cardiac function using conventional transthoracic echocardiography and left ventricular strain imaging in HIV infected patients without cardiovascular disease. Methods: This was a hospital based, single center descriptive cross-sectional comparative study conducted in National Academy of Medical Sciences (NAMS), Bir Hospital which included HIV patients with baseline examination including a patient medical history, clinical examination, baseline CD4 count, viral load and a standardized transthoracic echocardiography and strain imaging examination and the findings were compared among age and sex frequency matched healthy adult population. Results: Our study enrolled 142 patients out of which 95 HIV positive patients (mean age 36.7±9.2 years with 58% female) and 47 healthy control (mean age 33.7±8 years with 57.4% female). The median duration of HIV diagnosis was 7 years (IQR 2, 10) and median CD4 count was 464 cells/mm3 (IQR 259,750). There was no significant difference in conventional echocardiographic parameters between two groups except for transmitral E velocity that was lower in HIV group (P value of 0.001). The HIV population has lower mean global longitudinal strain (GLS) value of -19.92% ± 2.54 SD compared to the healthy control population with mean of -21.39% ± 1.54 SD(P value of 0.001) and patients with CD4 count less than 300 cell/mm3 had GLS value significantly lower than -18% (P value of 0.05). Conclusion: HIV infected population without established cardiovascular disease have subclinical left ventricular dysfunction revealed by GLS imaging technique.

2021 ◽  
Vol 18 (2) ◽  
pp. 15-19
Author(s):  
Bishow Raj Baral ◽  
Arun Maskey ◽  
Rabi Malla ◽  
Sujeeb Rajbhandari ◽  
Krishna Chandra Adhikari ◽  
...  

Background and Aims:  Hypertension being one of the commonest non communicable diseases is major risk factor leading to premature death.1 With development of, the left ventricular strain imaging technique by echocardiography the consequences of hypertension may be identified and intervene earlier. The aim of study was to show abnormalities in cardiac function in the form of left ventricular strain imaging in hypertensive patients with preserved Ejection fraction. Methods: This  was a cross-sectional, comparative and observational study done in Shahid Gangalal National Heart Centre and National Academy of Medical Sciences, Bir Hospital Kathmandu which included hypertensive patients with baseline examination including a medical history, clinical examination and a standardized trans thoracic echocardiography and strain imaging examination and the findings were compared among age and sex frequency matched 82 healthy adults in 1 : 2 ratio. The independent paired t test was used for the comparative statistical analysis. Results: We enrolled 240 patients in this study, 158 were hypertensive (mean age 48.5 ±6.1 years with 50.6 % female) and 82 healthy control (mean age 45.62 ±6.3 years with 51.2% female). There was no significant difference in conventional echocardiographic parameters between two groups except for left ventricular mass index and relative wall thickness that was highest in hypertensive group (p value of <0.001). The hypertensive population has lower mean global longitudinal strain (GLS) value of -18.6% ± 2.06 SD compared to the healthy control population with mean of -19.5% ± 1.1 SD (p value of <0.001). Conclusion: Hypertensive patients with preserved left ventricular ejection fraction have subclinical left ventricular dysfunction revealed by GLS imaging technique.


2021 ◽  
Vol 9 (12) ◽  
pp. 501-507
Author(s):  
Muhammad Hadian ◽  
Ricke Loesnihari ◽  
Tambar Kembaren

ABSTRACT Introduction: HIV is a developing disease that has been a global problem. The progress of HIV infection is characterized by decreased CD4 count. Hemostasis disorder is often found in patients with HIV, where the formed virus-antibody complex can activate the coagulation system, beginning from the activation of the Hageman factor (Factor XII) into the active form (Factor XIIa). This factor will activate the fibrinolysis process. Fibrin polymer is broken down into fragments X and Y. Fragment Y is further broken down into Fragment D and E, which is known as D-dimer. Objective: To determine the difference of PT, aPTT, Fibrinogen, and D-Dimer in HIV patients with a CD4 lymphocyte count of < 200/µL and > 200/µL in H. Adam Malik General Hospital Medan. Hypothesis: There is a difference of PT and aPTT activities in HIV patients with a CD4 count of < 200 cells/µL and ≥ 200 cells/µL and a difference of D-dimer and fibrinogen levels in HIV patients with a CD4 count of < 200/µL and > 200/µL in H. Adam Malik General Hospital Medan. Methods: This study was conducted in the Clinical Pathology Laboratory, Department of Internal Medicine, H. Adam Malik General Hospital. Samples were collected with a consecutive sampling method which included patients diagnosed with HIV in H. Adam Malik General Hospital Medan from September 2019 to July 2020 who fulfilled the inclusion and exclusion criteria. Thirty-eight patients were divided into two groups, i.e., HIV patients with a CD4 count of < 200/µL and HIV patients with a CD4 lymphocyte count of > 200/ µL. Results: Mann-Whitney test was used to assess the comparison of PT and aPTT values between HIV patients with a CD4 count of < 200 cells/µL and ≥ 200 cells/µL. The result was significant with a p-value = 0.002, which means that there is a significant difference in PT and aPTT values between HIV patients with a CD4 count of < 200 cells/µL and ≥ 200 cells/µL. An Independent T-test was used to assess the difference in fibrinogen level between HIV patients with a CD4 count of < 200/µL and > 200/µL, which resulted in p-value = 0.032. This means that there is a significant difference in fibrinogen levels between HIV patients with a CD4 count of < 200/µL and > 200/µL. Mann-Whitney test was used to determine the comparison in D-dimer level between HIV patients with a CD4 count of < 200/µL and > 200/µL, which showed a p-value = 0.002. This indicated a significant difference in D-dimer level between HIV patients with a CD4 count of < 200/µL and > 200/µL. Conclusion: The lower the CD4 lymphocyte count, the higher the activities of PT, aPTT, fibrinogen, and D-dimer in HIV patients.   Keywords: HIV, PT, aPTT, D-Dimer, Fibrinogen, Hemostasis


2020 ◽  
Vol 21 (Supplement_1) ◽  
Author(s):  
A Alfuhied ◽  
M Alfarih ◽  
P Kumar M ◽  
G Captur ◽  
P Nihoyannopoulos

Abstract Introduction Optimal timing of intervention in aortic stenosis (AS) is key. Left ventricular deformation parameters are sensitive markers of myocardial wellbeing in AS, but data is sparse so strain does not currently feature in the clinical decision-making process governing timing of AS intervention. We explore the trajectory of myocardial strain in AS of varying severity to potentially identify the most sensitive periods for valve intervention. Methods 50 patients from across the spectrum of isolated AS were prospectively recruited: mild AS n = 10; moderate AS n = 10; and severe AS n = 30 of which n = 10 in each of 3 ejection fraction (EF) groups: EF &gt; 50%, EF = 40-49% and EF &lt; 35%. Longitudinal, circumferential, and radial strain were measured by speckle tracking echocardiography (STE) using TomTec software. Results Strain parameters and EF were not significantly different between mild and moderate AS groups but almost all parameters (except for global circumferential strain (GCS)) showed significant deterioration with progression to severe AS, even in spite of preserved EF (&gt;50%; Table1). In patients with severe AS, strain parameters showed no significant differences between hearts with EF &gt; 50% and EF 40-49%, but they continued to deteriorate significantly (p &lt; 0.05) as hearts transitioned from 40-49% to &lt;35% (Figure 1, a&b). Conclusion The heart can maintain its deformation and global systolic function throughout mild and moderate AS but strain deteriorates significantly in severe AS, irrespective of EF. Tracking the precise timings of strain deterioration in severe AS could help refine optimal timings of AS intervention. LVEF and strain in varying AS severity Left ventricle ejection fraction and strain values in varying severity of AS Mild (n = 10) Moderate (n = 10) Severe (n = 10) P-value Mean (SD) Mean (SD) Mean (SD) EF (%) 65.4 (6.1) 65.8 (9.0) 60.4 (3.6)*§ 0.15 GLS (%) -14.2 (2.1) -13.6 (2.3) -11.8 (2.9)* 0.09 GCS (%) -30.3 (9.1) -31.0 (11.4) -26.5 (8.2) 0.55 GRS (%) 55.9 (15.5) 52.6 (24.0) 35.9 (13.5)*§ 0.05 EF: ejection fraction; GLS: global longitudinal strain; GCS: global circumferential strain; GRS: global radial strain; SD: standard deviation. Severe (n = 10): Severe AS with preserved EF &gt;50%. P-value: ANOVA-single factor; comparison in-between groups was performed using unpaired t-test (parametric) and Mann Whitney test (non-parametric). *significant difference P &lt; 0.05 mild vs severe. §significant difference P &lt; 0.05 moderate vs severe. Abstract P307 Figure.


2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
M Triantafyllou ◽  
R Monteiro ◽  
A Protonotarios ◽  
T Gossios ◽  
P Elliott ◽  
...  

Abstract Introduction Early detection of affected family relatives of patients with dilated cardiomyopathy (DCM) is essential in order to guide follow up, outcomes and initiate early treatment. Myocardial work analysis is a novel method which integrated strain imaging and blood pressure and has the potential to identify patients with subclinical disease. Purpose We analysed myocardial work in family relatives of DCM patients with positive genotype but negative phenotype in order to identify whether myocardial work can identify early changes. Methods Seventy-four family relatives of DCM patients attending for screening were examined. All individuals were asymptomatic with either positive (45/74, G+) or negative (29/74, G-) genotype and no echocardiographic evidence of left ventricular dilatation or systolic impairment. Non-invasive myocardial work analysis using two-dimensional (2D) speckle tracking echocardiography was analysed. Global longitudinal strain (GLS) was measured by the same vendor specific software used for myocardial work analysis. Left ventricular (LV) ejection fraction (EF) was measured with the Simpson's biplane method. The peak systolic arm cuff blood pressure (BP) measurement at the time of echocardiography was used for the myocardial work study. Results In total we included 74 individuals (37±15 years old, 50.7% women) with mean systolic and diastolic BP of 121.3±14 and 73.2±10 mmHg respectively, mean EF was 58±5% and mean GLS at 18.4±2.5%. G+ individuals had pathogenic and very likely pathogenic mutations in 8 different genes (TTN, BAG3, DSP, FLNC, LMNA, DMD, RBM20, TPM1). There was no difference in age, systemic hypertension, diabetes or medical treatment between the 2 groups. No significant difference was found among G+ and G- individuals in mean systolic and diastolic BP (121.2±14.7 vs 121.2±15.2 mmHg), mean EF (57.3±5 vs 59.1±4%), GLS (−18.2±1.5 vs −18.6±2.9%), mean global work index (1818±403 vs 1928±295 mmHg%) and global constructive work (2192±464 vs 2260±318 mmHg%). However, we found significant reduction of the global work efficiency (GWE) with a GWE of 94.4±2.7% in the G+ versus 95.9±1.6% in the G- individuals (p 0.02). Moreover, the global wasted work (GWW) was increased in the G+ with a GWW of 111±58 mmHg% versus 82±41 mmHg% in the G- individuals (p 0.03). Conclusion DCM gene carriers show, early on, decreased myocardial work efficiency and increased wasted work compared to unaffected family members, which appears to be earlier than other parameters such as EF and GLS. Myocardial work analysis could potentially recognize individuals showing early cardiac involvement and guide closer follow up and early initiation of treatment. Funding Acknowledgement Type of funding source: None


2021 ◽  
Vol 22 (Supplement_1) ◽  
Author(s):  
L Tirapu Sola ◽  
F Loncaric ◽  
M Mimbrero ◽  
LG Mendieta ◽  
L Nunno ◽  
...  

Abstract Funding Acknowledgements Type of funding sources: Public grant(s) – National budget only. Main funding source(s): La Marató TV3 Background Interatrial block (IAB), a delay of conduction of the sinus stimulus from right to left atria (LA), is defined as surface ECG P-wave duration ≥120 ms. Arterial hypertension (AH) and IAB have been related to development of atrial fibrillation. Aim To investigate the IAB prevalence in a cohort of AH patients and relate it to LA function. Methods 162 patients with well-regulated AT were included. 12-lead ECG were performed and analysed with a digital caliper. 2D and 3D echocardiography were performed, and LA function assessed with speckle-tracking deformation imaging.  Results The median age was 56 ± 6 years, 54% were males. Average duration of AH was 10 ± 6 years. IAB was seen in 25% of AH patients.  The comparison between groups is shown in Table 1. There were no differences in demographic characteristics,  QRS complex duration (p = 0.179) or left ventricular (LV) size and function between subgroups. LA was enlarged in IAB patients, which was coupled with impairment of the LA reservoir strain.  Conclusion Our results show considerable prevalence of IAB in AH patients. The demonstrated LA enlargement and function impairment is not associated with LV dysfunction, therefore suggesting an independent role of IAB in atrial remodeling. Table 1 Interatrial block P value Yes (n= 40) No (n= 142) Age 59 (54-62) 57 (53-61) 0.157 Female gender 16 (40%) 58 (48%) 0.467 Duration of Hypertension (years) 10 (6-12) 8 (5-15) 0.421 Systolic blood pressure (mmHg) 136 (125-150) 136 (127-147) 0.799 Diabetes 3 (8%) 16 (13%) 0.410 LVEDV (mL) 73 (63-91) 71 (57-87) 0.424 E/A 0.98 (0.84-1.25) 0.94 (0.79-1.11) 0.230 E/e’ 7.0 (4.9-8.9) 6.6 (5.2-8.4) 0.779 LVEF (%) 63 ± 7 64 ± 6 0.864 LV global longitudinal strain (%) 21.22 ± 2.63 21.19 ± 2.30 0.932 3D LA maximal volume (mL/m2) 36 (30-39) 30 (26-37) 0.028 3D LA minimal volume (mL/m2) 16 (12-18) 14 (11-17) 0.050 LA reservoir strain (%) 27.64 (24.90-31.23) 29.55 (26.17-32.81) 0.032 LA conduit strain (%) 13.91 (10.71-15.47) 14.37 (11.75-16.72) 0.192 LA contractile strain (%) 14.46 (11.86-16.59) 15.52 (13.66-16.96) 0.079 LVEDV Left Ventricular End Dyastolic Volume


2021 ◽  
Vol 8 (5) ◽  
pp. 53
Author(s):  
Ivana Škrlec ◽  
Jasminka Talapko ◽  
Martina Juzbašić ◽  
Robert Steiner

The growing body of evidence shows a significant difference in the circadian rhythm of cardiovascular disease based on biological sex. The incidence of cardiovascular disease varies between women and men. Additionally, biological sex is vital for the timely application of therapy—chronotherapy, which benefits both sexes. This study aimed to examine the potential difference of single nucleotide polymorphisms (SNPs) of the circadian rhythm genes ARNTL, CLOCK, CRY2 and PER2 in women and men with myocardial infarction. A cross-sectional study was conducted, including 200 patients with myocardial infarction. Altogether, ten single nucleotide polymorphisms in the ARNTL, CLOCK, CRY2 and PER2 genes were analyzed. The Chi-square test yielded statistically significant differences in CLOCK gene rs11932595 polymorphism in a recessive genotype model between women and men with a p-value of 0.03 and an odds ratio 2.66, and a corresponding 95% confidence interval of 1.07 to 6.66. Other analyzed polymorphisms of the circadian rhythm genes ARNTL, CRY2, and PER2 did not significantly differ between the sexes. According to the study’s current results, the CLOCK gene’s genetic variability might affect myocardial infarction concerning biological sex.


2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
E Trush ◽  
S.V Ivanova ◽  
E.N Yushchuk ◽  
A.A Savin ◽  
I.V Melehina

Abstract Introduction Global longitudinal strain (GLS) via speckle tracking echocardiography (STE) has emerged as a quantitative technique to estimate myocardial function and has been shown to have clinical utility in a variety of settings. The use of this technique in patients with a stroke is limited. Purpose Comparative analysis of myocardial deformation indicators in patients with a stroke, depending on the severity and subtype. Results 230 patients with an acute cerebrovascular accident (132 men and 98 women) were included in our study, with the mean age of 64,9±10,8. Transient ischemic attack (TIA) was diagnosed in 39 (17%), acute ischemic stroke (AIS) in 191 (83%) patients. The type of an ischemic stroke in each patient was classified as one of the following traditional stroke subtypes: large-artery atherosclerosis (LAA) was diagnosed in 85 (44,5%), cardioembolic infarcts were diagnosed in 58 (30,4%), lacunar infarcts were diagnosed in 32 (16,8%) and in 16 (8,4%) the stroke was of another determined or undetermined etiology. There was no significant difference in left ventricular (LV) ejection fraction (EF) between the subgroups of TIA and AIS - 63.0% [60.0; 65.0] and 62.0% [58.0; 65.0], respectively. The LV GLS was within normal limits and amounted to 19.9±2.6 in the TIA group where as in the group of patients with stroke there was a significant (p&lt;0.01) decrease in GLS below standard values - 17.1±3.8. The LV EF showed no significant difference between the groups of stroke subtypes. However, a decrease in GLS was found in the series from cardioembolic infarct &gt; lacunar infarct &gt; LAA - 17.5±3.7 &gt; 16.5±6.5 &gt; 16.2±3.2 (p=0,7). A decrease in GLS was significantly more often observed in male patients. A decrease in the level of GLS in patients with a stroke is associated with duration of type 2 diabetes, stroke severity by the National Institutes of Health Stroke Scale (NIHSS) score, ECG voltage criteria for LVH, increase in heart rate, LV mass/BSA, relative wall thickness (RWT) according to echocardiography. Significant differences in GLS from the size of the stroke focus according to CT scanning/ magnetic resonance imaging were not detected. Conclusion GLS via STE in patients with a stroke correlates with the severity of a stroke, the severity of LV remodeling, risk factors for cardiovascular events and requires a further study to assess the long-term prognosis Funding Acknowledgement Type of funding source: None


Author(s):  
Akshar Jaglan ◽  
Sarah Roemer ◽  
Ana Cristina Perez Moreno ◽  
Bijoy K Khandheria

Abstract Aims Myocardial work (MW) is a novel parameter that can be used in a clinical setting to assess left ventricular (LV) pressures and deformation. We sought to distinguish patterns of global MW index in hypertensive vs. non-hypertensive patients and to look at differences between categories of hypertension. Methods and results Sixty-five hypertensive patients (mean age 65 ± 13 years; 30 male) and 15 controls (mean age 38 ± 12 years; 7 male) underwent transthoracic echocardiography at rest. Hypertensive patients were subdivided into Stage 1 (n = 32) and Stage 2 (n = 33) hypertension based on 2017 American College of Cardiology guidelines. Exclusion criteria were suboptimal image quality for myocardial deformation analysis, reduced ejection fraction, valvular heart disease, intracardiac shunt, and arrhythmia. Global work index (GWI), global constructive work (GCW), global wasted work (GWW), and global work efficiency were estimated from LV pressure–strain loops utilizing proprietary software from speckle-tracking echocardiography. LV systolic and diastolic pressures were estimated using non-invasive brachial artery cuff pressure. Global longitudinal strain and LV ejection fraction were preserved between the groups with no statistically significant difference, whereas there was a statically significant difference between the control and two hypertension groups in GWI (P = 0.01), GCW (P &lt; 0.001), and GWW (P &lt; 0.001). Conclusion Non-invasive MW analysis allows better understanding of LV response under conditions of increased afterload. MW is an advanced assessment of LV systolic function in hypertension patients, giving a closer look at the relationship between LV pressure and contractility in settings of increased load dependency than LV ejection fraction and global longitudinal strain.


Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Akshar Jaglan ◽  
Sarah Roemer ◽  
Ana C Perez Moreno ◽  
Bijoy K Khandheria

Introduction: Myocardial work is a novel parameter that can be used in a clinic setting to assess left ventricular (LV) pressures and deformation. This study sought to distinguish patterns of global myocardial work index in hypertensive vs. non-hypertensive patients. Methods: Fifty (25 male, mean age 60±14 years) hypertensive patients and 15 (7 male, mean age 38±12 years) control patients underwent transthoracic echocardiography at rest. Hypertensive patients were divided into stage 1 (26 patients) and stage 2 (24 patients) based on the 2017 American College of Cardiology guidelines. We excluded patients with suboptimal image quality for myocardial deformation analysis, reduced ejection fraction (EF), valvular heart disease, and arrhythmia. Global work index (GWI), global constructive work (GCW), global wasted work (GWW), and global work efficiency (GWE) were estimated from LV pressure strain loops utilizing proprietary software from speckle-tracking echocardiography. LV systolic and diastolic pressures were estimated using a noninvasive brachial artery cuff. Results: Global longitudinal strain (GLS) and EF were preserved between the two groups with no statistically significant difference whereas there was a statistically significant difference in the GWI (p<0.01), GCW (p=0.03), GWW (p<0.01), and GWE (p=0.03) (Figure and Table). Conclusions: Myocardial work gives us a closer look at the relationship between LV pressure and contractility in settings of increased load dependency whereas LVEF and GLS cannot. We show how myocardial work is an advanced assessment of LV systolic function in hypertensive patients.


2021 ◽  
Vol 13 (1) ◽  
pp. 75-83
Author(s):  
Erwin Astha Triyono ◽  
Sarah Firdausa ◽  
Heru Prasetyo ◽  
Joni Susanto ◽  
James Hutagalung ◽  
...  

BACKGROUND: Human immunodeficiency virus (HIV) is an infectious disease that targets the human immune system by attacking cluster of differentiation (CD)4 cells. The use of propolis in HIV patients is expected to be safe and beneficial in terms of increasing endurance and immunity by its role in increasing CD4 level. This study aimed to analyze the influence of propolis supplementation in increasing the CD4 level in anti-retroviral (ARV)-treated HIV patients.METHODS: Double-blind randomized controlled clinical trial was conducted in 50 HIV patients who took regular ARV therapy. The subjects were divided into two groups, one group was treated with ARV and propolis, while another one was given ARV and placebo. The CD4 cell count was measured during pre-treatment, in the 3rd month, in the 6th month after treatment. The level of hemoglobin, leukocyte, and platelets were also measured. The SF-12 questionnaire was used to evaluate quality of life of the subject.RESULTS: Out of 50 subjects, 43 subjects completed the study, which were 19 subjects from the propolis group and 24 subjects from the placebo group. After 3-month of treatment, there was a statistically significant difference in the incrwase of CD 44 level in propolis group, while the increment was not significant in the placebo group. After 6-month treatment, the increase of CD4 level was occurred in both groups, propolis and placebo, however the increment was not statistically significant. The levels of hemoglobin, leukocyte, and platelets were not altered by the treatment and remained normal throughout the study. The quality of life was improved during the study; however, it was also not statistically significant. Mild adverse events occurred in 3 subjects which were relieved after the treatment stopped.CONCLUSION: Based on the result of this study, the administration of propolis on HIV patients receiving ARV bring significant difference in the increase of CD4 in propolis group from baseline to 3 month after the treatment. While in placebo group, this increment was not significant. At the end of study, CD4 count continued to rise up, however the increase was not statistically significant. There are no hemoglobin, leukocyte, platelets, and quality of life abnormalities. Therefore, it is necesary to do further research with a spesific CD4 count. However, it may be beneficial in relieving the clinical symptoms and quality of life of patient living with HIV.KEYWORDS: CD4, ARV, HIV, propolis


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