Publications by authors named "Navin Nanda"

In heart failure, sympathetic overdrive is evidenced by norepinephrine spillover, receptor level changes, etc. Beta-blockers continue to be the cornerstone of treatment in patients with chronic heart failure due to their ability to counteract sympathetic overdrive. Extensive clinical research has demonstrated that long-term beta-blocker treatment with metoprolol succinate, carvedilol, or bisoprolol enhances left ventricular function and reverses left ventricular remodeling, decreases hospitalization risk, and increases survival.

View Article and Find Full Text PDF
Article Synopsis
  • * Current guidelines recommend early combination therapy using four drug classes, especially ARNI, which significantly reduces morbidity and mortality in patients with heart failure with reduced ejection fraction (HFrEF).
  • * A national consensus by Indian cardiology experts emphasizes that ARNI should be initiated early in HFrEF patients, including those hospitalized, and can also benefit patients with preserved and mildly reduced ejection fractions.
View Article and Find Full Text PDF

Fusion imaging (FI) technology using EchoNavigator that integrates live transesophageal echocardiogram and overlays on real-time fluoroscopy. We present our experience placing a right ventricular (RV) support device, a ProtekDuo, in our patient with post-operative RV failure using FI to guide the implantation.

View Article and Find Full Text PDF

Chronic kidney disease (CKD) is a major contributor to morbidity and mortality in India. CKD often coexists with heart failure (HF), diabetes, and hypertension. All these comorbidities are risk factors for renal impairment.

View Article and Find Full Text PDF

The rapidly increasing burden of hypertension is responsible for premature deaths from cardiovascular disease (CVD), renal disease, and stroke, with a tremendous public health and financial burden. Hypertension detection, treatment, and control vary worldwide; it is still low, particularly in low- and middle-income countries (LMICs). High blood pressure (BP) and CVD risk have a strong, linear, and independent association.

View Article and Find Full Text PDF
Article Synopsis
  • * Sodium-glucose cotransporter-2 inhibitors (SGLT2i) are new medications that not only help control blood sugar in T2DM but also provide significant cardiovascular benefits for HF patients.
  • * Evidence shows that SGLT2i can enhance heart function and improve outcomes in HF whether patients have diabetes or not, making them valuable for a wide range of HF patients, especially in India.
View Article and Find Full Text PDF
Article Synopsis
  • - In India, heart failure (HF) is a significant health issue, impacting younger individuals compared to Western countries, but many patients do not receive proper medical treatment.
  • - Selective β-1 blockers, like bisoprolol, are important in treating HF because they help lower heart rate and reverse negative heart and blood vessel changes associated with the condition.
  • - Despite the benefits of bisoprolol for various HF cases and comorbid conditions, its use in India remains suboptimal, prompting a consensus on its effectiveness and recommending it for better patient care.
View Article and Find Full Text PDF
Article Synopsis
  • The Lipid Association of India updated its cardiovascular risk assessment algorithm to address the unique challenges of atherosclerotic cardiovascular disease (ASCVD) in Indians, focusing on early intervention.
  • A series of expert meetings were held to review current evidence and refine treatment guidelines, emphasizing the need for aggressive preventive measures due to the young age of onset for ASCVD in the Indian population.
  • The updated recommendations aim to enhance LDL-C-lowering therapy and improve risk management strategies for individuals at high risk of ASCVD, ultimately striving to reduce its prevalence in India and beyond.
View Article and Find Full Text PDF

• AO dissections may rupture into the PA, and a linear dissection may be seen with TEE. • 3D TEE is a useful supplement to 2D TEE and helps in making a comprehensive assessment. • 3D TEE en face view helps in differentiating a linear dissection from a linear artifact.

View Article and Find Full Text PDF

Adverse cardiac remodeling refers to progressive structural and functional modifications in the heart because of increased wall stress in the myocardium, loss of viable myocardium, and neurohormonal stimulation. The guideline-directed medical therapy for Heart failure (HF) includes Angiotensin receptor-neprilysin inhibitor (ARNI) (sacubitril/valsartan), β-blockers, sodium-glucose co-transporter 2 (SGLT2) inhibitors, and mineralocorticoid receptor antagonists (MRA). ARNI is under-prescribed in India despite its attractive safety and efficacy profile.

View Article and Find Full Text PDF

Iron deficiency (ID) with or without anemia is frequently observed in patients with heart failure (HF). Uncorrected ID is associated with higher hospitalization and mortality in patients with acute HF (AHF) and chronic HF (CHF). Hence, in addition to chronic renal insufficiency, anemia, and diabetes, ID appears as a novel comorbidity and a treatment target of CHF.

View Article and Find Full Text PDF

;Heart failure (HF) is a huge global public health task due to morbidity, mortality, disturbed quality of life, and major economic burden. It is an area of active research and newer treatment strategies are evolving. Recently angiotensin receptor-neprilysin inhibitor (ARNI), a class of drugs (the first agent in this class, Sacubitril-Valsartan), reduces cardiovascular mortality and morbidity in chronic HF patients with reduced left ventricular ejection fraction (LVEF).

View Article and Find Full Text PDF

Cryptogenic stroke (CS) accounts for approximately 25% of ischemic stroke cases, with atrial fibrillation (AF) accounting for 30% of CS cases. We investigated the utility of left atrial (LA) speckle-tracking echocardiography in identifying patients at high risk of AF after CS and potentially guiding patients who will benefit from long-term rhythm monitoring devices. Cochrane Library, MEDLINE, and EMBASE were searched for relevant studies.

View Article and Find Full Text PDF

Due to the proportionally high mortality rates associated with isolated tricuspid valve surgery, the invasive treatment of such pathology, historically, has been left largely unaddressed. Recently, there has been an appreciation for the mortality and morbidity of tricuspid valve disease, giving rise to the movement towards identifying less invasive, transcatheter approaches for treatment. Due to the technical complexity of these procedures along with the uniqueness and variability of tricuspid valve anatomy, a better appreciation of the tricuspid valve anatomy and pathology is required for pre-procedural planning.

View Article and Find Full Text PDF

Background: Implantable cardioverter-defibrillators (ICDs) improve outcomes in patients with heart failure (HF) with left ventricular ejection fraction (LVEF) ≤35%. Less is known about whether outcomes varied between the 2 noninvasive imaging modalities used to estimate LVEF-2-dimensional echocardiography (2DE) and multigated acquisition radionuclide ventriculography (MUGA)-which use different principles (geometric vs count-based, respectively).

Objective: The purpose of this study was to examine whether the effect of ICD on mortality in patients with HF and LVEF ≤35% varied on the basis of LVEF measured by 2DE or MUGA.

View Article and Find Full Text PDF

Background: The aim of this study is to describe, for the first time to our knowledge, the utilization of both two-dimensional (2D) and three-dimensional (3D) transesophageal echocardiography (TEE) in successfully performing transcatheter mitral valve (MV) in bioprosthetic MV/MV annulopasty ring implantation using the apical approach in 12 patients (pts) with co-existing left atrial appendage (LAA) and/or LA (left atrium) body thrombus, which is considered a contraindication for this procedure.

Methods And Results: All pts were severely symptomatic with severe bioprosthetic MV stenosis/regurgitation except one with a previous MV annuloplasty ring and severe native MV stenosis. Thrombus in LAA and/or LA body was noted in all by 2D and 3DTEE.

View Article and Find Full Text PDF

Background: Coronary vasomotion abnormalities have been described in small studies but not studied systematically. We aimed to review the present literature and analyze it to improve our understanding of chronic kidney disease (CKD) related-coronary microvascular dysfunction.

Objective: Coronary flow reserve (CFR) is a well-known measure of coronary vasomotion.

View Article and Find Full Text PDF
Article Synopsis
  • The study compared outcomes of patients with non-ST-elevation acute coronary syndrome (NSTE-ACS) and complex coronary disease who underwent either percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG).
  • No significant differences in major cardiac adverse events (MACE) or survival rates were found between PCI and CABG after 30 days.
  • However, during long-term follow-up, PCI was linked to a higher risk of MACE compared to CABG, although both procedures had similar rates of stroke and all-cause mortality.
View Article and Find Full Text PDF

Background And Purpose: In this review we describe the use of artificial intelligence in the field of echocardiography. Various aspects and terminologies used in artificial intelligence are explained in an easy-to-understand manner and supplemented with illustrations related to echocardiography. Limitations of artificial intelligence, including epistemologic concerns from a philosophical standpoint, are also discussed.

View Article and Find Full Text PDF

Background: Increased systolic pulmonary arterial pressure (sPAP) could lead to the mechanical dysfunction and myocardial fibrosis of the right heart chambers. Echocardiographic strain analysis has not been adequately studied in patients with pulmonary hypertension (PH).

Study Design And Methods: A cross-sectional cohort of patients with suspected PH and echocardiographic strain evaluation was recruited.

View Article and Find Full Text PDF

We describe the role of three-dimensional echocardiography in the assessment of the aortic valve and the aorta. The manuscript is heavily illustrated with figures and movie clips.

View Article and Find Full Text PDF
Article Synopsis
  • * These risk factors can lead to damage in heart cells (myocytes), causing issues like fibrosis, changes in cell size, and potentially transitioning to a pathological state of PHF.
  • * Advanced imaging techniques like 2D- and 3D-speckle tracking echocardiography are used to detect early signs of heart damage by measuring cardiac strain, which can indicate the level of myocardial remodeling and dysfunction.
View Article and Find Full Text PDF
Article Synopsis
  • ECMO is a life-support technique for patients experiencing cardiac or respiratory failure, which requires detailed diagnostic imaging to guide its implementation effectively.
  • Echocardiography is crucial for safely positioning ECMO cannulas, optimizing blood flow, and troubleshooting during treatment, but current guidelines for its use in ECMO are insufficient.
  • This review emphasizes the importance of advanced echocardiographic techniques and knowledge, particularly regarding new cannula designs and complex procedures, to enhance patient care in ECMO settings.
View Article and Find Full Text PDF