Publications by authors named "Paras Mehta"

Background: The consequence of diabetes on lung cancer overall survival (OS) is debated. This retrospective study used 2 large lung cancer databases to assess comprehensively diabetes effects on lung cancer OS in diverse demographic populations, including health disparity.

Methods: The University of Texas MD Anderson Cancer Center database (32 643 lung cancer patients with 11 973 patients with diabetes) was extracted from electronic health records (EHRs) using natural language processing (NLP).

View Article and Find Full Text PDF

Background: Measuring and assessing the relationship between inpatient nurse staffing and workload across a national health system is difficult because of challenges in systematically observing inpatient workload at the unit level.

Objective: The objective of this study was to apply a novel measure of inpatient nurse workload to estimate the relationship between inpatient nurse staffing and nurse workload at the unit level during a key nursing activity: the peak-time medication pass.

Methods: A retrospective observational study was conducted in the Veterans Health Administration, the largest employer of nurses in the United States.

View Article and Find Full Text PDF

Background: Hyperglycemia occurs in 22% to 46% of hospitalized patients, negatively affecting patient outcomes, including mortality, inpatient complications, length of stay, and hospital costs. Achieving inpatient glycemic control is challenging due to inconsistent caloric intake, changes from home medications, a catabolic state in the setting of acute illness, consequences of acute inflammation, intercurrent infection, and limitations in labor-intensive glucose monitoring and insulin administration.

Method: We conducted a retrospective cross-sectional analysis at the University of California San Francisco hospitals between September 3, 2020 and September 2, 2021, comparing point-of-care glucose measurements in patients on nil per os (NPO), continuous total parenteral nutrition, or continuous tube feeding assigned to our novel automated self-adjusting subcutaneous insulin algorithm (SQIA) or conventional, physician-driven insulin dosing.

View Article and Find Full Text PDF

Background: Studies of nurse staffing frequently use data aggregated at the hospital level that do not provide the appropriate context to inform unit-level decisions, such as nurse staffing.

Objectives: Describe a method to link patient data collected during the provision of routine care and recorded in the electronic health record (EHR) to the nursing units where care occurred in a national dataset.

Research Design: We identified all Veterans Health Administration acute care hospitalizations in the calendar year 2019 nationwide.

View Article and Find Full Text PDF

The field of personality disorder research has grown since the publication of the , in 1980; with a notable evolution in the way that personality disorders are defined and operationalized. In evaluating this research, it is necessary to consider the range of sampling practices used. The goal of this study was to describe current sampling methods in personality disorder research and provide recommendations to guide sample design in future personality disorder research.

View Article and Find Full Text PDF

Artificial intelligence algorithms to classify melanoma are dependent on their training data, which limits generalizability. The objective of this study was to compare the performance of an artificial intelligence model trained on a standard adult-predominant dermoscopic dataset before and after the addition of additional pediatric training images. The performances were compared using held-out adult and pediatric test sets of images.

View Article and Find Full Text PDF

Objective: The aim of the study is to introduce an innovative use of bar code medication administration (BCMA) data, medication pass analysis, that allows for the examination of nurse staffing and workload using data generated during regular nursing workflow.

Methods: Using 1 year (October 1, 2014-September 30, 2015) of BCMA data for 11 acute care units in one Veterans Affairs Medical Center, we determined the peak time for scheduled medications and included medications scheduled for and administered within 2 hours of that time in analyses. We established for each staff member their daily peak-time medication pass characteristics (number of patients, number of peak-time scheduled medications, duration, start time), generated unit-level descriptive statistics, examined staffing trends, and estimated linear mixed-effects models of duration and start time.

View Article and Find Full Text PDF

Response to immunotherapies can be variable and unpredictable. Pathology-based phenotyping of tumors into 'hot' and 'cold' is static, relying solely on T-cell infiltration in single-time single-site biopsies, resulting in suboptimal treatment response prediction. Dynamic vascular events (tumor angiogenesis, leukocyte trafficking) within tumor immune microenvironment (TiME) also influence anti-tumor immunity and treatment response.

View Article and Find Full Text PDF

Objective: To identify clinical characteristics and factors associated with the development of euglycemic diabetic ketoacidosis (eDKA), and develop suitable strategies to reduce such events.

Methods: Electronic health record (EHR) data were extracted to identify all patients between December 1, 2013, and March 30, 2021, who underwent surgical procedures and had been prescribed a sodium-glucose cotransporter 2 inhibitor (SGLT2i) before these procedures. The resulting list was streamlined to a subset of patients who either had diabetic ketoacidosis (DKA) listed as a hospital diagnosis, postoperative serum bicarbonate ≤ 16 mmol/L, or postoperative serum pH ≤ 7.

View Article and Find Full Text PDF
Article Synopsis
  • Cutaneous metastases in pancreatic cancer (PC) are uncommon and primarily originate from tumors located in the tail of the pancreas.
  • A study of 40 patients revealed that the abdomen is the most common site for these metastases, with umbilical lesions being particularly prevalent.
  • The overall survival (OS) for patients with umbilical metastases was slightly better (13.7 months) compared to those with non-umbilical metastases (8.9 months), and genetic testing identified several pathogenic variants.
View Article and Find Full Text PDF

The presence of inflammation in dry eye disease (DED) results in increased patient symptomatology, ocular surface damage and worsening tear dysfunction. It also affects the health of meibomian glands and their secretions which further aggravates ocular surface disease. This article reviews current knowledge regarding ocular surface inflammation in DED and explores the relationships between the vicious cycles of DED, inflammation and meibomian gland dysfunction (MGD).

View Article and Find Full Text PDF

Background: Immune checkpoint inhibitors (ICIs) are approved to treat multiple cancers. Retrospective analyses demonstrate acceptable safety of ICIs in most patients with autoimmune disease, although disease exacerbation may occur. Psoriasis vulgaris is a common, immune-mediated disease, and outcomes of ICI treatment in patients with psoriasis are not well described.

View Article and Find Full Text PDF
Article Synopsis
  • - The study aimed to compare the demographics, medical conditions, and outcomes of COVID-19 patients with obesity to those without obesity, based on data from Spain, the UK, and the US from early 2020.
  • - A total of over 600,000 diagnosed and over 160,000 hospitalized COVID-19 patients were analyzed, revealing a higher prevalence of obesity among hospitalized patients and noted that women were more frequently represented in the PLWO group.
  • - Results indicated that patients living with obesity (PLWO) had more prior medical conditions, experienced more severe COVID-19 symptoms, and required greater hospital resources compared to those without obesity, highlighting the need for tailored preventive measures.
View Article and Find Full Text PDF

Purpose: The use of vaginal immobilization balloons placed into the vagina for immobilization of tandem and ovoid (T+O) applicator during high-dose-rate (HDR) brachytherapy delivery has been used at our institution, and seems to have improved our patient comfort, decreased procedure time, and minimized applicator misplacement. We aimed to show that these balloons, while originally marketed for single-day use, are safe and maintain applicator positioning/dosimetry when left overnight for treatment delivery on sequential days.

Material And Methods: Forty-two paired computed tomography (CT) scans from thirteen patients who underwent T+O HDR treatments on sequential days with vaginal immobilization balloons overnight were retrospectively compared to calculate mean change of balloon volumes and balloon/T+O distance to bony landmarks.

View Article and Find Full Text PDF

Introduction: To evaluate whether outpatient insulin treatment, hemoglobin A1c (HbA1c), glucose on admission, or glycemic control during hospitalization is associated with SARS-CoV-2 (COVID-19) illness severity or mortality in hospitalized patients with diabetes mellitus (DM) in a geographical region with low COVID-19 prevalence.

Research Design And Methods: A single-center retrospective study of patients hospitalized with COVID-19 from January 1 through August 31, 2020 to evaluate whether outpatient insulin use, HbA1c, glucose on admission, or average glucose during admission was associated with intensive care unit (ICU) admission, mechanical ventilation (ventilator) requirement, or mortality.

Results: Among 111 patients with DM, 48 (43.

View Article and Find Full Text PDF

When stable and near-normoglycemic, patients with "A-β+" ketosis-prone diabetes (KPD) manifest accelerated leucine catabolism and blunted ketone oxidation, which may underlie their proclivity to develop diabetic ketoacidosis (DKA). To understand metabolic derangements in A-β+ KPD patients during DKA, we compared serum metabolomics profiles of adults during acute hyperglycemic crises, without ( = 21) or with ( = 74) DKA, and healthy control subjects (n = 17). Based on 65 kDa GAD islet autoantibody status, C-peptide, and clinical features, 53 DKA patients were categorized as having KPD and 21 type 1 diabetes (T1D); 21 nonketotic patients were categorized as having type 2 diabetes (T2D).

View Article and Find Full Text PDF

Background: Hospital performance comparisons for transparency initiatives may be inadequate if peer comparison groups are poorly defined.

Objective: The objective of this study was to evaluate a new approach identifying hospital peers for comparison.

Design/setting: We used Mahalanobis distance as a new method of developing peer-specific groupings for hospitals to incorporate both external and internal complexity.

View Article and Find Full Text PDF
Article Synopsis
  • The study aimed to explore the use of repurposed and supporting drugs in COVID-19 patients hospitalized across the US, Spain, China, and South Korea during 2020.
  • A total of 303,264 hospital patients were analyzed, with significant variation in drug prescriptions between countries; hydroxychloroquine had a dramatic increase in use in Spain but was virtually unused in China.
  • Findings showed that alongside repurposed drugs, adjunct treatments like enoxaparin, fluoroquinolones, and corticosteroids were commonly administered, highlighting the need for further research on their effectiveness and safety.
View Article and Find Full Text PDF
Article Synopsis
  • * A study analyzed 34,128 COVID-19 patients across the US, South Korea, and Spain, revealing differences in gender and age demographics among countries.
  • * Compared to influenza patients hospitalized from 2014-2019, COVID-19 patients tend to be younger, more often male, and have fewer comorbidities and lower medication use, indicating a need for tailored response strategies.
View Article and Find Full Text PDF