Publications by authors named "Raju V"

This study explores the integration of nanotechnology and Long Short-Term Memory (LSTM) machine learning algorithms to enhance the understanding and optimization of fuel spray dynamics in compression ignition (CI) engines with varying bowl geometries. The incorporation of nanotechnology, through the addition of nanoparticles to conventional fuels, improves fuel atomization, combustion efficiency, and emission control. Simultaneously, LSTM models are employed to analyze and predict the complex spray behavior under diverse operational and geometric conditions.

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Purpose: Chronic pain is highly prevalent and disabling for older adults, particularly those from underserved communities. However, there is an absence of research on how contextual (eg, community/societal) factors interact with pain for these patients. Informed by the socio-ecological model, this study aimed to elucidate the individual, interpersonal, community, and societal factors associated with chronic pain from the perceptions of older adult patients and medical staff in a community clinic.

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Objective: The transannular patch remains the most common procedure performed for patients with Tetralogy of Fallot (TOF) with pulmonary stenosis. Pulmonary regurgitation has a negative impact on early and late outcomes. To address this issue pulmonary valve-sparing repair (PVSR) has been developed.

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Older adults from underserved backgrounds experience chronic pain at a rate of 60% to 75%. Pharmacological treatments have limited efficacy and involve considerable risks. Mind-body interventions hold promise to improve pain outcomes but are typically not implemented in community clinics in which they are needed most, thus contributing to health disparities in chronic pain treatment.

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  • Shared plate eating (SPE) is a prevalent practice in many Low- and Middle-Income Countries, like Ghana, but has been understudied, leading to challenges in accurately assessing dietary habits in these contexts.
  • The study aimed to explore the frequency of SPE versus individual plate eating among family members in both rural and urban households using a wearable camera to capture food consumption directly.
  • Results showed a significant difference, with rural households engaging in SPE 96.7% of the time compared to 36.7% in urban households, highlighting the importance of modern methods like wearable cameras for better data on dietary practices.
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Introduction: There are many criteria for diagnosing Guillain-Barré syndrome (GBS), and the yield of these diagnostic criteria varies. Each criterion requires some laboratory data and nerve conduction studies (NCS). Although supportive laboratory data are reassuring when present in suspected cases of GBS, when absent, they can potentially cause further delay in diagnosis and treatment.

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Background: The repair of certain types of complex congenital cardiac defects may require a right ventricle-pulmonary artery (RV-PA) conduit. Using the Ozaki Aortic valve neocuspidization (AVNeo)technique, a valved RV-PA conduit was constructed with an Ozaki valve inside a Dacron graft. This study aims to evaluate the short-term outcome of the Ozaki valved RV-PA conduit.

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Preeclampsia is a multisystem disorder associated with defective trophoblast invasion, maternal syndrome, and capillary endothelial leak. The presence of ascites/third space fluid accumulation increases the risk of maternal morbidity and mortality. The current criteria/guidelines of preeclampsia do not establish the presence of ascites as a marker of severity or recognize the timing and need for early delivery despite associated complications.

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  • Cystic Fibrosis affects the CFTR gene, leading to mucus accumulation and lung issues; Ivacaftor is a drug that helps improve CFTR function and has potential for treating mucus problems in COPD.
  • A study tested new small molecule potentiators on CFTR activity using various cell cultures and models, specifically focusing on the effects of cigarette smoke.
  • Findings indicated that SK-POT1 improved CFTR activity in airway cells exposed to cigarette smoke, suggesting it could be a promising candidate for treating mucostasis in airway diseases.
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Generalized arterial calcification of infancy (GACI) is a rare genetic condition with varied clinical presentation. Consequently, diagnosis is frequently delayed or missed. GACI has a poor prognosis, with more than half of patients dying before the age of 6 months.

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Background Despite evidence suggesting improved outcomes in neonates with hypoxic-ischemic encephalopathy (HIE) treated with therapeutic hypothermia (TH), data on the impact of temperature variability during cooling and its association with clinical outcomes remain limited. Objective To compare the efficacy and ease of use of two different cooling systems, the Arctic Sun (Medivance, Inc., Louisville, CO) vs.

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Objective: To study the applicability of on-table extubation (OTE) protocol following congenital cardiac surgery in a low-resource setting and its impact on the length of intensive care unit (ICU) stay, hospital stay, hospitalization cost, parental anxiety, and nurse anxiety.

Materials And Methods: In this prospective, nonrandomized, observational single-center study, we included all children above 1 year of age undergoing congenital cardiac surgery. We evaluated them for the feasibility of OTE using a prespecified protocol following separation from cardiopulmonary bypass.

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  • The surgical technique discussed involves a half-turned truncal switch operation used in a 5-year-old with complex heart conditions, including D-TGA and a ventricular septal defect.
  • This procedure aims to improve blood flow dynamics by creating better biventricular outflow tracts.
  • It utilizes the patient's own pulmonary valve for the right ventricular outflow, reducing the need for an artificial conduit.
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Chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) is an acquired, immune-mediated neuropathy affecting peripheral nerves and nerve roots. It is characterized by symmetric weakness involving both proximal and distal muscles; it can be relapsing-remitting or progressive in course. The clinical manifestations of CIDP are various and may present with atypical features, like myokymia, tremor, or tremor-like phenomena, which may mislead the clinician in diagnosis.

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  • An unusual case of obstructed supra cardiac anomalous pulmonary venous drainage is described.
  • The obstruction is caused by a "vice" created between the persistent arterial duct and the left pulmonary artery.
  • This condition highlights a unique anatomical challenge in managing pulmonary venous drainage issues.
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Background: Cystic Fibrosis causing mutations in the gene , reduce the activity of the CFTR channel protein, and leads to mucus aggregation, airway obstruction and poor lung function. A role for CFTR in the pathogenesis of other muco-obstructive airway diseases such as Chronic Obstructive Pulmonary Disease (COPD) has been well established. The CFTR modulatory compound, Ivacaftor (VX-770), potentiates channel activity of CFTR and certain CF-causing mutations and has been shown to ameliorate mucus obstruction and improve lung function in people harbouring these CF-causing mutations.

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Background: Premedication in neonates undergoing elective intubation effectively minimizes the negative physiological events of bradycardia, systemic hypertension, intracranial hypertension, and hypoxia. Premedication decreases procedure-related pain and discomfort. This study aimed to evaluate the current practice of pre-intubation medications for non-emergent intubations in preterm and term neonates in the United States.

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The first step in any dietary monitoring system is the automatic detection of eating episodes. To detect eating episodes, either sensor data or images can be used, and either method can result in false-positive detection. This study aims to reduce the number of false positives in the detection of eating episodes by a wearable sensor, Automatic Ingestion Monitor v2 (AIM-2).

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Background: Chronic musculoskeletal pain is prevalent and disabling among older adults in underserved communities. Psychosocial pain management is more effective than pharmacological treatment in older adults. However, underserved community clinics often lack psychosocial treatments, in part because of a lack of trained providers.

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Objective: Moderate risk patients with chest pain and no previously diagnosed coronary artery disease (CAD) who present to ED require further risk stratification. We hypothesise that management of these patients by ED physicians can decrease length of stay (LOS), without increasing patient harm.

Methods: A prospective pilot study with comparison to a pre-intervention control group was performed on patients presenting with chest pain to an ED in Perth, Australia between May and October 2021, following the introduction of a streamlined guideline consisting of ED led decision making and early follow up.

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Major bodily trauma such as cardiac surgery elicits (in response to tissue injury and other exogenous surgical factors) a whole-body inflammation response during which specialized signaling proteins called cytokines are synthesized and invoke multiple defense mechanisms. Many proinflammatory and anti-inflammatory cytokines such as interleukins (IL) and tumor necrosis factor (TNF) are produced to initiate bodily repair. Due to the adverse health consequences, including mortality, of a maladaptive cytokine response, understanding their complex dynamics using system-theoretic modeling and analysis may pave the way for controlling the inflammatory response which may eventually improve medical outcomes for patients.

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Cortisol is a neuroendocrine hormone of the hypothalamus-pituitary-adrenal (HPA) axis secreted from adrenal glands in response to stimulation by adrenocorticotropic hormone (ACTH) from the anterior pituitary and corticotropin releasing hormone (CRH) from the hypothalamus. Cortisol has multiple functionalities in maintaining bodily homeostasis - including anti-inflammatory influences - through its diurnal secretion pattern (which has been studied extensively); its secretion is also increased in response to major traumatic events such as surgery. Due to the adverse health consequences of an abnormal immune response, it is crucial to understand the effect of cortisol in modulating inflammation.

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  • - Leptin, a hormone from fat tissue, plays a key role in regulating hunger and energy balance, and issues like high leptin levels (hyperleptinemia) or leptin resistance can lead to obesity.
  • - Monitoring leptin levels can aid in diagnosing obesity-related problems, and this study examined leptin levels in 18 obese women before and after treatment with bromocriptine, a dopamine agonist.
  • - Findings indicate a general decrease in leptin secretion, especially during sleep, but other changes in secretion rates and pulse frequency were not statistically significant, aiming to enhance understanding of bromocriptine's impact on leptin dynamics and obesity treatment.
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Double outlet of both ventricles is an anomaly wherein both ventricles equally share the arterial trunks. A majority of the literature describes a variant of this disease with a muscular outlet septum which is perpendicular to the plane of the ventricular septum although a variant with a fibrous muscular septum can also be present. The condition may be associated with obstruction of either outflow tract, which may complicate repair.

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