Publications by authors named "Sandeep Appunni"

To calculate national trends and estimates of cancer-related hospitalizations, hospital outcomes, and hospitalization costs. The current study was a retrospective analysis of National Inpatient Sample data, collected during 2008 to 2019. Adult cancer hospitalizations were identified by Clinical Classifications Software codes.

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Background: COVID-19 has affected many hospitalizations. In this study, we intended to understand the effects of COVID-19 pandemic on heart failure hospitalizations in the state of California.

Method: This study was a retrospective analysis of California State Inpatient Database during March to December of 2019 and 2020.

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Studies have shown that decorin is a potent pan-cancer tumor suppressor that is under-expressed in most cancers. Decorin interacts with receptor tyrosine kinases and functions as a pan-receptor tyrosine kinase inhibitor, thereby suppressing oncogenic signals. Decorin deficiency promotes epithelial-to-mesenchymal transition and enhances cancer dissemination and metastasis.

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Vascular diseases, such as hypertension, atherosclerosis, cerebrovascular, and peripheral arterial diseases, present major clinical and public health challenges, largely due to their common underlying process: vascular remodeling. This process involves structural alterations in blood vessels, driven by a variety of molecular mechanisms. The inhibitor of DNA-binding/differentiation-3 (), a crucial member of ID family of transcriptional regulators, has been identified as a key player in vascular biology, significantly impacting the progression of these diseases.

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This study investigated sex differences in clinical characteristics and in-hospital outcomes of heart failure (HF) hospitalizations using the National Inpatient Sample data, 2016-2019. HF hospitalizations ≥ 41 years of age were included and stratified by sex. Study outcomes were in-hospital mortality, prolonged length of stay, mechanical ventilation, mechanical circulatory support, vasopressor use, and disposition other than home.

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Objectives: Frail patients are at greater risk of experiencing adverse clinical outcomes in any critical illness due to decreased physiologic reserves, greater susceptibility to the adverse effects of treatment, and greater needs for intensive care. In this study, we sought to assess the prevalence of frailty and associated adverse in-hospital outcomes among coronavirus disease 2019 (COVID-19) hospitalizations using the 2020 California State Inpatient Database (SID).

Methods: For this study, we conducted a retrospective analysis of data from all COVID-19 hospital patients aged 18 years and older.

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Article Synopsis
  • * The review investigates various molecular changes in comorbidities linked to heart failure through extensive searches of multiple electronic databases.
  • * Insights gained from these molecular pathways can lead to the development of targeted therapies and personalized medicine approaches, ultimately improving treatment outcomes for patients with heart failure and related conditions.
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Background: Although assessment of frailty is increasingly being included in routine practice, its effects on hospital outcomes is not well studied. In this study, we used a national database to estimate the effects of frailty on hospital outcomes among stroke patients.

Methods: This study was a retrospective analysis of data from Nationwide Inpatient Sample (NIS) database collected during the years 2016 to 2019.

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Objective: Atrial fibrillation (AF) is a common arrhythmia in patients at high cardiovascular risk. COVID-19 patients with underlying cardiovascular disease are at increased risk of poor clinical outcomes. In this study, we aimed to determine hospital outcomes among patients admitted with AF and COVID-19 infection.

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Vascular diseases, including peripheral arterial disease (PAD), pulmonary arterial hypertension, and atherosclerosis, significantly impact global health due to their intricate relationship with vascular remodeling. This process, characterized by structural alterations in resistance vessels, is a hallmark of heightened vascular resistance seen in these disorders. The influence of environmental estrogenic endocrine disruptors (EEDs) on the vasculature suggests a potential exacerbation of these alterations.

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Objectives: Many epidemiological studies have shown that coronavirus disease 2019 (COVID-19) disproportionately affects males, compared with females, although other studies show that there were no such differences. The aim of the present study was to assess differences in the prevalence of hospitalizations and in-hospital outcomes between the sexes, using a larger administrative database.

Methods: We used the 2020 California State Inpatient Database for this retrospective analysis.

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Article Synopsis
  • The study explores the impact of acute myocardial infarction (AMI) on hospital outcomes for COVID-19 patients using data from over 94,000 hospitalizations in California during 2020.
  • Results revealed that patients with AMI experienced significantly higher rates of in-hospital mortality (43.2% vs. 10.8%), longer hospital stays, and greater need for vasopressors, mechanical ventilation, and ICU admission compared to those without AMI.
  • Despite AMI being rare in COVID-19 cases (only 1.6%), the findings emphasize the need for aggressive treatment for these patients to improve their hospital outcomes.
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Background: In the US, between 2018 and 2019, approximately $57 billion were expended on stroke and related conditions. The aim of this study was to understand trends in direct healthcare expenditures among stroke patients using novel cost estimation methods and a nationally representative database.

Methods: This study was a retrospective analysis of 193,003 adults, ≥18 years of age, using the Medical Expenditure Panel Survey during 2009-2016.

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Transthyretin amyloid cardiomyopathy is being increasingly recognized as an important cause of heart failure (HF). In this study, we looked at adverse outcomes in hospitalizations with amyloid-related HF. This study was a retrospective analysis of the National Inpatient Sample data, collected from 2016 to 2019.

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Background: Studies on frailty among pediatric patients with cancer are scarce. In this study, we sought to understand the effects of frailty on hospital outcomes in pediatric patients with cancer.

Methods: This retrospective study used data collected and stored in the Nationwide Inpatient Sample (NIS) between 2005 and 2014.

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Major adverse cardiovascular and cerebrovascular events (MACCE) is an important cause of morbidity and mortality during perioperative period. In this study, we looked for national trends in perioperative MACCE and its components as well as cancer types associated with high rates of perioperative MACCE during major cancer surgeries. This study was a retrospective analysis of the National Inpatient Sample, 2005-2014.

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Purpose: There are very few studies that have compared the short-term outcomes of laparoscopic Roux-en-Y gastric bypass (LRYGB) and laparoscopic sleeve gastrectomy (LSG). Among short-term outcomes, hospital readmission after these procedures is an area for quality enhancement and cost reduction. In this study, we compared 30-day readmission rates after LSG and LRYGB through analyzing a nationalized dataset.

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Existing studies on pregnancy-related outcomes among cancer survivors are limited by sample size or specificity of the cancer type. This study estimated the burden of adverse maternal and fetal outcomes among pregnant cancer survivors using a national database. This study was a retrospective analysis of National Inpatient Sample collected during 2010-2014.

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The pathophysiology of stoke involves many complex pathways and risk factors. Though there are several ongoing studies on stroke, treatment options are limited, and the prevalence of stroke is continuing to increase. Understanding the genomic variants and biological pathways associated with stroke could offer novel therapeutic alternatives in terms of drug targets and receptor modulations for newer treatment methods.

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Background: The relationship between insurance status and interhospital transfers has not been adequately researched among cancer patients. Hence this study aimed for understanding this relationship using a nationally representative database.

Methods: A retrospective analysis was conducted using National Inpatient Sample (NIS) data collected during 2010-2016 and included all cancer hospitalization between 18 and 64 years of age.

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Purpose: Many smaller studies have previously shown a significant association between thyroid autoantibody induced hypothyroidism and lower serum vitamin D levels. However, these finding have not been confirmed by large-scale studies. In this study, we evaluated the relationship between hypothyroidism and vitamin D levels using a large population-based data.

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Dietary factors have important role in modulating the gut microbiome, which in-turn regulates the molecular events in colonic mucosa. The composition and resulting metabolism of the gut microbiome are decisive factors in colorectal cancer (CRC) tumorigenesis. Altered gut microbiome is associated with impaired immune response, and the release of carcinogenic or genotoxic substances which are the major microbiome-induced mechanisms implicated in CRC pathogenesis.

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