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Dive into the research topics where Kristel K. Hunt is active.

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Featured researches published by Kristel K. Hunt.


Hepatology | 2017

Identifying barriers to hepatocellular carcinoma surveillance in a national sample of patients with cirrhosis

David S. Goldberg; Tamar H. Taddei; Marina Serper; Rajni Mehta; Eric Dieperink; Ayse Aytaman; Michelle Baytarian; Rena K. Fox; Kristel K. Hunt; Marcos Pedrosa; Christine Pocha; Adriana Valderrama; David E. Kaplan

Hepatocellular carcinoma (HCC) is a leading cause of morbidity and mortality in cirrhosis patients. This provides an opportunity to target the highest‐risk population, yet surveillance rates in the United States and Europe range from 10% to 40%. The goal of this study was to identify barriers to HCC surveillance, using data from the Veterans Health Administration, the largest provider of liver‐related health care in the United States. We included all patients 75 years of age or younger who were diagnosed with cirrhosis from January 1, 2008, until December 31, 2010. The primary outcome was a continuous measure of the percentage of time up‐to‐date with HCC surveillance (PTUDS) based on abdominal ultrasound (secondary outcomes included computed tomography and magnetic resonance imaging). Among 26,577 patients with cirrhosis (median follow‐up = 4.7 years), the mean PTUDS was 17.8 ± 21.5% (ultrasounds) and 23.3 ± 24.1% when any liver imaging modality was included. The strongest predictor of increased PTUDS was the number of visits to a specialist (gastroenterologist/hepatologist and/or infectious diseases) in the first year after cirrhosis diagnosis; the association between visits to a primary care physician and increasing surveillance was very small. Increasing distance to the closest Veterans Administration center was associated with decreased PTUDS. There was an inverse association between ultrasound lead time (difference between the date an ultrasound was ordered and requested exam date) and the odds of it being performed: odds ratio = 0.77, 95% confidence interval 0.72‐0.82 when ordered > 180 days ahead of time; odds ratio = 0.90, 95% confidence interval 0.85‐0.94 if lead time 91‐180 days. Conclusions: The responsibility for suboptimal surveillance rests with patients, providers, and the overall health care system; several measures can be implemented to potentially increase HCC surveillance, including increasing patient–specialist visits and minimizing appointment lead time. (Hepatology 2017;65:864‐874).


Alimentary Pharmacology & Therapeutics | 2009

Clinical trial: the efficacy and safety of routine bowel cleansing agents for elective colonoscopy in persons with spinal cord injury – a randomized prospective single‐blind study

Hanumantha R. Ancha; Ann M. Spungen; William A. Bauman; Alan S. Rosman; Spencer Shaw; Kristel K. Hunt; James Post; Marinella Galea; Mark A. Korsten

Background  As difficulty with evacuation is a common occurrence in individuals with spinal cord injury, preparation prior to colonoscopy may be suboptimal and, perhaps, more hazardous.


Clinical Gastroenterology and Hepatology | 2015

Development and Performance of an Algorithm to Estimate the Child-Turcotte-Pugh Score From a National Electronic Healthcare Database.

David E. Kaplan; Feng Dai; Ayse Aytaman; Michelle Baytarian; Rena K. Fox; Kristel K. Hunt; Astrid Knott; Marcos Pedrosa; Christine Pocha; Rajni Mehta; Mona Duggal; Melissa Skanderson; Adriana Valderrama; Tamar H. Taddei

BACKGROUND & METHODS The Child-Turcotte-Pugh (CTP) score is a widely used and validated predictor of long-term survival in cirrhosis. The CTP score is a composite of 5 subscores, 3 based on objective clinical laboratory values and 2 subjective variables quantifying the severity of ascites and hepatic encephalopathy. To date, no system to quantify CTP score from administrative databases has been validated. The Veterans Outcomes and Costs Associated with Liver Disease study is a multicenter collaborative study to evaluate the outcomes and costs of hepatocellular carcinoma in the U.S. Veterans Health Administration. We developed and validated an algorithm to calculate electronic CTP (eCTP) scores by using data from the Veterans Health Administration Corporate Data Warehouse. METHODS Multiple algorithms for determining each CTP subscore from International Classification of Diseases version 9, Common Procedural Terminology, pharmacy, and laboratory data were devised and tested in 2 patient cohorts. For each cohort, 6 site investigators (Boston, Bronx, Brooklyn, Philadelphia, Minneapolis, and West Haven VA Medical Centers) were provided cases from which to determine validity of diagnosis, laboratory data, and clinical assessment of ascites and encephalopathy. The optimal algorithm (designated eCTP) was then applied to 30,840 cirrhotic patients alive in the first quarter of 2008 for whom 5-year overall and transplant-free survival data were available. The ability of the eCTP score and other disease severity scores (Charlson-Deyo index, Veterans Aging Cohort Study index, Model for End-Stage Liver Disease score, and Cirrhosis Comorbidity) to predict survival was then assessed by Cox proportional hazards regression. RESULTS Spearman correlations for administrative and investigator validated laboratory data in the HCC and cirrhotic cohorts, respectively, were 0.85 and 0.92 for bilirubin, 0.92 and 0.87 for albumin, and 0.84 and 0.86 for international normalized ratio. In the HCC cohort, the overall eCTP score matched 96% of patients to within 1 point of the chart-validated CTP score (Spearman correlation, 0.81). In the cirrhosis cohort, 98% were matched to within 1 point of their actual CTP score (Spearman, 0.85). When applied to a cohort of 30,840 patients with cirrhosis, each unit change in eCTP was associated with 39% increase in the relative risk of death or transplantation. The Harrell C statistic for the eCTP (0.678) was numerically higher than those for other disease severity indices for predicting 5-year transplant-free survival. Adding other predictive models to the eCTP resulted in minimal differences in its predictive performance. CONCLUSION We developed and validated an algorithm to extrapolate an eCTP score from data in a large administrative database with excellent correlation to actual CTP score on chart review. When applied to an administrative database, this algorithm is a highly useful predictor of survival when compared with multiple other published liver disease severity indices.


Journal of Clinical Gastroenterology | 2015

Neostigmine Administered With MoviPrep Improves Bowel Preparation for Elective Colonoscopy in Patients With Spinal Cord Injury: A Randomized Study.

Mark A. Korsten; Spungen Am; Radulovic M; Alan S. Rosman; Kristel K. Hunt; Galea; Kornfeld Sd; Lyons Bl; Yen C; Bauman Wa

Background: Poor preparation for elective colonoscopy is exceedingly common in persons with spinal cord injury (SCI). This unsatisfactory outcome is likely due to long-standing difficulty with evacuation and decreased colonic motility, which may result in inadequate responses to conventional bowel preparation regimens. We determined whether the addition of neostigmine to MoviPrep before elective colonoscopy produced a higher percentage of acceptable bowel preparations in patients with SCI. Methods: Twenty-seven SCI subjects were prospectively randomized to 1 of 2 arms: low-volume polyethylene glycol-electrolyte lavage with ascorbic acid (MoviPrep) or MoviPrep plus neostigmine methylsulfate and glycopyrrolate (MoviPrep+NG); 28 able-bodied subjects received MoviPrep alone. The quality of the cleansing preparation for colonoscopy was determined by gastroenterologists “calibrated” to use the Ottawa Scoring System, with an acceptable Ottawa Score (OS) considered to be ⩽3. Results: The administration of MoviPrep alone resulted in suboptimal bowel cleansing in the SCI group compared with the able-bodied group (50% vs. 89% of subjects had an acceptable OS; &khgr;2=7.94, P=0.05). However, when NG was added to MoviPrep in the SCI group, it markedly improved the quality of the bowel preparation, with 85% of patients then having an acceptable OS. The use of NG resulted in minimal bloating and distention before bowel evacuation (P=0.0005), and eye and muscle twitching; these were resolved within 1 hour after NG administration. No significant differences were noted among the preparation groups for adenoma detection rate (P=0.41). Conclusions: The combination of MoviPrep+NG was safe, well tolerated, and an effective approach to prepare the bowel for elective colonoscopy in patients with SCI. The side effects of this preparation were significant compared with the other treatment groups but were considered mild and anticipated.


Clinical Gastroenterology and Hepatology | 2018

Healthcare Costs Related to Treatment of Hepatocellular Carcinoma Among Veterans With Cirrhosis in the United States

David E. Kaplan; Michael K. Chapko; Rajni Mehta; Feng Dai; Melissa Skanderson; Ayse Aytaman; Michelle Baytarian; Kathryn D’Addeo; Rena K. Fox; Kristel K. Hunt; Christine Pocha; Adriana Valderrama; Tamar H. Taddei

BACKGROUND & AIMS: It is important to quantify medical costs associated with hepatocellular carcinoma (HCC), the incidence of which is rapidly increasing in the United States, for development of rational healthcare policies related to liver cancer surveillance and treatment of chronic liver disease. We aimed to comprehensively quantify healthcare costs for HCC among patients with cirrhosis in an integrated health system and develop a model for predicting costs that is based on clinically relevant variables. METHODS: Three years subsequent to liver cancer diagnosis, costs accrued by patients included in the Veterans Outcome and Cost Associated with Liver disease cohort were compiled by using the Department of Veterans Affairs Corporate Data Warehouse. The cohort includes all patients with HCC diagnosed in 2008–2010 within the VA with 100% chart confirmation as well as chart abstraction of tumor and clinical characteristics. Cancer cases were matched 1:4 with non‐cancer cirrhosis controls on the basis of severity of liver disease, age, and comorbidities to estimate background cirrhosis‐related costs. Univariable and multivariable generalized linear models were developed and used to predict cancer‐related overall cost. RESULTS: Our analysis included 3188 cases of HCC and 12,722 controls. The mean 3‐year total cost of care in HCC patients was


Journal of Spinal Cord Medicine | 2015

Comparison between pulsed irrigation enhanced evacuation and polyethylene glycol-electrolyte lavage solution for bowel preparation prior to elective colonoscopy in veterans with spinal cord injury

Brian Lyons; Mark A. Korsten; Ann M. Spungen; Miroslav Radulovic; Alan S. Rosman; Kristel K. Hunt; Marinella Galea; Stephen D. Kornfeld; Christina Yen; William A. Bauman

154,688 (standard error,


Journal of Clinical Gastroenterology | 2016

Safety of Propofol Used as a Rescue Agent During Colonoscopy.

Francis C. Okeke; Spencer Shaw; Kristel K. Hunt; Mark A. Korsten; Alan S. Rosman

150,953–


Gastroenterology | 2014

Mo1059 Interim Analysis of HCC Screening and Survival in 1131 Veterans Diagnosed With HCC From 2008-2010

Tamar H. Taddei; David E. Kaplan; Ayse Aytaman; Michelle Baytarian; Kathryn D; Feng Dai; Mona Duggal; Rena K. Fox; Kristel K. Hunt; Astrid Knott; Rajni Mehta; Marcos Pedrosa; Christine Pocha; Adriana Valderrama; Melissa Skanderson

158,422) compared with


Gastroenterology | 2011

Pulse-Irrigation Enhanced Evacuation and MoviPrep® With Adjunctive Neostigmine and Glycopyrrolate Improve Bowel Preparation for Colonoscopy After Spinal Cord Injury

Robert E. Williams; Miroslav Radulovic; William A. Bauman; Amer Malik; Milan Glumicic; Ann M. Spungen; Marinella Galea; Alan S. Rosman; Spencer Shaw; Kristel K. Hunt; Ravi R. Vinnakota; Mark A. Korsten

69,010 (standard error,


Gastroenterology | 2009

T1093 Long Term Follow Up of Renal Function in Subjects Receiving Oral Sodium Phosphate for Bowel Preparation Prior to Colonoscopy: A Prospective Study

Hanumantha R. Ancha; James Post; Syed T. A. Shah; Mohamad S. Saad; Spencer Shaw; Alan S. Rosman; Kristel K. Hunt; Robert E. Williams; Ann M. Spungen; William A. Bauman; Mark A. Korsten

67,344–

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Mark A. Korsten

Icahn School of Medicine at Mount Sinai

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Alan S. Rosman

Icahn School of Medicine at Mount Sinai

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Ann M. Spungen

Icahn School of Medicine at Mount Sinai

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Ayse Aytaman

United States Department of Veterans Affairs

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David E. Kaplan

University of Pennsylvania

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Rena K. Fox

University of California

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William A. Bauman

Icahn School of Medicine at Mount Sinai

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Spencer Shaw

Icahn School of Medicine at Mount Sinai

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