Robert H. Hollis

ORCID: 0000-0002-6761-9890
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About
Contact & Profiles
Research Areas
  • Cardiac, Anesthesia and Surgical Outcomes
  • Enhanced Recovery After Surgery
  • Pancreatic and Hepatic Oncology Research
  • Colorectal Cancer Screening and Detection
  • Nutrition and Health in Aging
  • Colorectal Cancer Surgical Treatments
  • Pancreatitis Pathology and Treatment
  • Frailty in Older Adults
  • Health Literacy and Information Accessibility
  • Global Cancer Incidence and Screening
  • Hip and Femur Fractures
  • Stoma care and complications
  • Gallbladder and Bile Duct Disorders
  • Global Health Workforce Issues
  • Diversity and Career in Medicine
  • Palliative Care and End-of-Life Issues
  • Esophageal and GI Pathology
  • Genetic factors in colorectal cancer
  • Healthcare professionals’ stress and burnout
  • Hemodynamic Monitoring and Therapy
  • Nausea and vomiting management
  • Inflammatory Bowel Disease
  • Heart Failure Treatment and Management
  • Medical Education and Admissions
  • Health Education and Validation

University of Alabama at Birmingham
2016-2025

Twitter (United States)
2025

The Ohio State University
2022

Cleveland Clinic
2020-2021

University of Alabama
2017-2019

Birmingham VA Medical Center
2012-2018

Health Services Research & Development
2017-2018

NewYork–Presbyterian Hospital
2017

Columbia University
2017

The University of Texas Health Science Center at San Antonio
1994

Frail patients are known to have poor perioperative outcomes. There is a paucity of literature investigating how the Modified Frailty Index (mFI), validated measure frailty, associated with unplanned readmission among military veterans following surgery.To understand association between frailty and 30-day postoperative readmission.A retrospective cohort study was conducted adult who underwent surgery were discharged alive from Veterans Affairs hospitals for orthopedic, general, vascular...

10.1001/jamasurg.2017.1025 article EN JAMA Surgery 2017-05-03

To identify a clinical fistula risk score following distal pancreatectomy.Clinically relevant pancreatic (CR-POPF) pancreatectomy (DP) is dominant contributor to procedural morbidity, yet factors attributable CR-POPF and effective practices reduce its occurrence remain elusive.This multinational, retrospective study of 2026 DPs involved 52 surgeons at 10 institutions (2001-2016). CR-POPFs were defined by 2016 International Study Group criteria, models generated using stepwise logistic...

10.1097/sla.0000000000002491 article EN Annals of Surgery 2017-08-29

Objective: The aim of this study was to identify the optimal fistula mitigation strategy following pancreaticoduodenectomy. Background: utility technical strategies prevent clinically relevant postoperative pancreatic (CR-POPF) pancreatoduodenectomy (PD) may vary by circumstances anastomosis. Fistula Risk Score (FRS) identifies a distinct high-risk cohort (FRS 7 10) that demonstrates substantially worse clinical outcomes. value various in these particular high-stakes cases has not been...

10.1097/sla.0000000000002327 article EN Annals of Surgery 2017-06-07

This multicenter study sought to evaluate the accuracy of American College Surgeons National Surgical Quality Improvement Program's (ACS-NSQIP) surgical risk calculator for predicting outcomes after pancreatoduodenectomy (PD) and determine whether incorporating other factors improves its predictive capacity.The ACS-NSQIP has been proposed as a decision-support tool predict complication various operations. Although it considers 21 preoperative factors, does not include procedure-specific...

10.1097/sla.0000000000001796 article EN Annals of Surgery 2016-05-26

Preoperative hyperglycemia is associated with adverse postoperative outcomes among patients who undergo surgery. Whether preoperative hemoglobin A1c (HbA1c) or glucose levels are more useful in predicting events following surgery uncertain the current literature.To examine use of HbA1c and early for complications readmission.In this observational cohort study, inpatient gastrointestinal surgical procedures performed at 117 Veterans Affairs hospitals from 2007 to 2014 were identified, cases...

10.1001/jamasurg.2017.2350 article EN JAMA Surgery 2017-07-26

Ampullary adenocarcinoma is a rare malignant neoplasm that arises within the duodenal ampullary complex. The role of adjuvant therapy (AT) in treatment has not been clearly defined.To determine if long-term survival after curative-intent resection may be improved by selection patients for AT directed histologic subtype.This multinational, retrospective cohort study was conducted at 12 institutions from April 1, 2000, to July 31, 2017, among 357 with resected, nonmetastatic receiving surgery...

10.1001/jamasurg.2019.1170 article EN JAMA Surgery 2019-05-29

The aim of this study is to understand the relative contribution preoperative patient factors, operative characteristics, and postoperative hospital course on 30-day readmissions.Determining risk readmission after surgery difficult. Understanding most important contributing factors improving prediction reducing risk.National Veterans Affairs Surgical Quality Improvement Program data inpatient general, vascular, orthopedic from 2008 2014 were merged with laboratory, vital signs, prior...

10.1097/sla.0000000000001855 article EN Annals of Surgery 2016-07-04

Objective: The aim of this study was to elucidate the impact intraoperative blood loss on outcomes following pancreatoduodenectomy (PD). Background: negative in PD has long been suspected but not well characterized, particularly those factors that may be within surgeons’ control. Methods: From 2001 2015, 5323 PDs were performed by 62 surgeons from 17 institutions. Estimated (EBL) discretized (0 300, 301 750, 751 1300, and >1300 mL) using optimal scaling methodology. Multivariable...

10.1097/sla.0000000000002714 article EN Annals of Surgery 2018-02-28

Objective: We sought to qualitatively identify opportunities improve perioperative ostomy care and education. Background: Patients with a new utilize care–related resources manage their ostomy. Many patients experience ostomy-related issues after surgery. Methods: In this qualitative study, who underwent the construction of ostomy, caregivers, healthcare professionals were purposively recruited for semistructured phone interviews. Interviews included questions about experiences, education,...

10.1097/as9.0000000000000563 article EN cc-by-nc-nd Annals of Surgery Open 2025-03-01

We examined whether an early warning score (EWS) could predict inpatient complications in surgical patients.Abnormal vitals often precede in-hospital mortality. The EWS calculated using vital signs has been developed to identify patients at risk for mortality.Inpatient general surgery procedures with National Surgical Quality Improvement Project data from 2013 2014 were matched enterprise on and neurologic status calculate the each postoperative set measured ward. Outcomes of major...

10.1097/sla.0000000000001514 article EN Annals of Surgery 2015-12-21

<h3>Importance</h3> Current guidelines for delaying surgery after coronary stent placement are based on type. However, the indication may be an important risk factor postoperative major adverse cardiac events (MACE). <h3>Objective</h3> To determine whether clinical a is associated with MACE. <h3>Design, Setting, and Participants</h3> Retrospective cohort study in patients at US Veterans Affairs hospitals who had placed between January 1, 2000, December 31, 2010, underwent noncardiac within...

10.1001/jamasurg.2015.4545 article EN JAMA Surgery 2015-12-31

Although the use of laparoscopy has significantly increased in colorectal procedures, robotic surgery may enable additional cases to be performed using a minimally invasive approach. We separately evaluated value laparoscopic and procedures compared open approach.Patients undergoing nonemergent operations from 2010 2013 with National Surgical Quality Improvement Project data were identified. Robotic matched (1:1) cases. Outcomes included 30-day composite morbidity, length stay, operative...

10.1089/lap.2015.0620 article EN Journal of Laparoendoscopic & Advanced Surgical Techniques 2016-07-11

Proteinuria indicates renal dysfunction and is a risk factor for morbidity among medical patients, but less understood surgical populations. There paucity of studies investigating how preoperative proteinuria associated with outcomes, including postoperative acute kidney injury (AKI) readmission.To assess urine protein levels as biomarker adverse outcomes.A retrospective, population-based study was conducted in cohort patients without known undergoing elective inpatient surgery performed at...

10.1001/jamasurg.2018.2009 article EN JAMA Surgery 2018-07-03

10.1016/j.surg.2020.11.022 article EN Surgery 2020-12-30
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