Publications by authors named "Manidhar Lekkala"

Background With the advent of novel treatments, there is a declining trend in the multiple myeloma (MM) mortality rate with an increasing hospitalization rate. However, there is limited population-based data on trends and outcomes of hospitalizations due to MM in the United States (US). Methods We analyzed the publicly available Nationwide Inpatient Sample (NIS) from 2007 to 2017 to identify MM hospitalizations.

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Introduction: Fluoropyrimidines (FP) are cornerstone drugs in the treatment of gastrointestinal (GI) malignancies. Cardiotoxicity secondary to an FP chemotherapy is a serious complication. There are no standardized guidelines on the treatment of FP induced cardiotoxicity which may result in interruption and even discontinuation of life saving treatment.

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Background This retrospective study was conducted to analyze the temporal trends, predictors, and impact of disseminated intravascular coagulation (DIC) on outcomes among septicemic patients using a nationally representative database. Methods We derived data from the National Inpatient Sample (NIS) for the years 2008-2017 for adult hospitalizations due to sepsis. The primary outcomes were in-hospital mortality and discharge to facility.

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Pembrolizumab, an immune checkpoint inhibitor (ICI) that acts against receptor programmed cell death-1 (PD-1), is currently being used in the treatment of a variety of cancers. As PD-1 is also present on other non-malignant tissues, this results in side effects involving a multitude of organ systems termed immune-related adverse effects (irAEs). Programmed cell death-1 is expressed on the beta cells of islets of the pancreas, and their destruction can result in hyperglycemia and the onset of new diabetes mellitus (DM).

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Background Hepatocellular Carcinoma (HCC) is a severe complication of cirrhosis and the incidence of HCC has been increasing in the United States (US). We aim to describe the trends, characteristics, and outcomes of hospitalizations due to HCC across the last decade. Methods We derived a study cohort from the Nationwide Inpatient Sample (NIS) for the years 2008-2017.

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Purpose: Delivering care for immunocompromised, high-risk patients with cancer during a pandemic has proven challenging. Patients with cancer on chemotherapy have a high risk of mortality if contracted COVID-19. If a patient goes directly to the emergency room, multiple contact points with other individuals can lead to unnecessary exposures from any airborne virus, such as COVID-19.

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Neuroendocrine tumors (NETs) are a relatively rare entity; however, the incidence and prevalence of these tumors are increasing, likely attributed to improved diagnostic accuracy. The diagnosis of suspected NETs is facilitated by clinical symptoms, laboratory test abnormalities such as elevated chromogranin-A, and other diagnostic modalities such as the use of computed tomography scans, magnetic resonance imaging scans, positron emission tomography (PET) scans, and biopsy. The expression of high levels of somatostatin receptors in NETs enables the use of a specialized PET scan using the radiolabeled somatostatin analogues 68Ga-DOTATATE.

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Immune-mediated adverse events are commonly seen with immune checkpoint inhibitors like nivolumab. Oncology specialists usually have to screen patients for risk factors for autoimmune diseases, since immune checkpoint inhibitors can potentially exacerbate these events. Some of the immune-mediated side effects include polyneuropathies, colitis, and cutaneous adverse effects.

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Immunotherapy is rapidly evolving secondary to the advent of newer immunotherapeutic agents and increasing approval of the current agents by the United States Food and Drug Administration to treat a wide spectrum of cancers. Immunotherapeutic agents have gained immense popularity due to their tumor-specific action. Immunotherapy is slowly transforming into a separate therapeutic entity, and the fifth pillar of management for cancers alongside surgery, radiotherapy, chemotherapy, and targeted therapy.

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Bone is the most common site for distant metastases in breast cancer and can cause significant morbidity and mortality. Bone modifying agents (BMAs) that include bisphosphonates (BPAs) and denosumab help in decreasing and delaying skeletal-related events (SREs) associated with metastatic breast cancer. BPAs approved for use by the Food and Drug Administration (FDA) in bone metastases (BM) in the United States are pamidronate and zolendronic acid, while clodronate and ibandronate are licensed for use in other countries.

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Immunotherapy is an extremely important breakthrough and an exciting new modality of treatment for a wide spectrum of cancers. It is focused around developing agents to stimulate or suppress the immune system, in a specific manner, to fight off a wide spectrum of diseases, particularly cancers. Traditional therapies available for the treatment of cancers include surgical intervention, chemotherapy, radiation therapy or a combination of these, which tend to be very non-specific.

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Background: Palbociclib is commonly added to an aromatase inhibitor (AI) as first-line therapy in ER + HER2- metastatic breast cancer (MBC). There are no data on the effect of the relative dose intensity (RDI) of palbociclib in first-line setting on clinical outcomes. The objective of this study is to explore the association of RDI and dose reduction of palbociclib in the first-line setting with PFS.

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Background: The treatment of metastatic renal cell carcinoma (RCC) has been radically changed by the advent of tyrosine kinase inhibitors (TKIs). However, few reports have described their role in cardiac metastases. We present a case of a left ventricular metastasis from RCC that was managed with pazopanib therapy.

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Aims: To assess whether continuous positive airway pressure (CPAP) therapy reduces major adverse cardiovascular events (MACE) in patients with moderate-to-severe obstructive sleep apnoea (OSA).

Methods And Results: A total of 235 articles were recovered using MEDLINE, EMBASE and Cochrane library (inception-December 2016) and references contained in the identified articles. Seven randomized controlled trials (RCTs) were selected for final analysis.

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Objective: To investigate the safety and efficacy of percutaneous coronary interventions (PCI) versus coronary artery bypass graft (CABG) surgery for left main coronary artery (LMCA) disease.

Methods: Six randomised controlled trials (RCTs) were reviewed by searching PubMed/Medline, Embase and the Cochrane Library. Estimates were pooled according to random effects model.

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Background: Previous reports have been inconsistent in generating a consensus for optimal treatment strategy for patients with percutaneous coronary intervention (PCI) who also require oral anticoagulation (OAC). We conducted a traditional and network meta-analysis to evaluate the safety and efficacy of anti-thrombotic regimens in this subset of patients.

Methods: 30 articles were recovered through preferred reporting items for systematic reviews and meta-analyses (PRISMA) using MEDLINE, EMBASE and Cochrane Central Register of Controlled Clinical Trials (CENTRAL) from inception to December 2016.

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