Publications by authors named "Shaffer V"

Article Synopsis
  • - Healthcare decision-making often relies on uncertain assessments of clinical and economic value due to incomplete or absent evidence, especially in areas like advanced therapies and rare diagnoses.
  • - Structured expert elicitation (SEE) helps gather and quantify expert knowledge about uncertain factors, utilizing various protocols to ensure more transparent and reliable assessments.
  • - The report introduces five SEE protocols, highlights their implementation differences, discusses their strengths and weaknesses, and suggests areas for further research without making specific practice recommendations.
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Background: Robotic surgery is perceived to be more complex in obese patients. Objective performance indicators, machine learning-enabled metrics, can provide objective data regarding surgeon movements and robotic arm kinematics. In this feasibility study, we identified differences in objective performance indicators during robotic proctectomy in obese and nonobese patients.

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Objective: To investigate the long-term outcomes of patients with combined primary sclerosing cholangitis/inflammatory bowel disease (PSC-IBD) undergoing both liver transplantation (LT) and total abdominal colectomy (TAC).

Summary Background Data: The fraction of patients with PSC-IBD that require both LT and TAC is small, thereby limiting significant conclusions regarding long-term outcomes.

Methods: Adult and pediatric patients from nine centers from the US IBD Surgery Collaborative who underwent staged LT and TAC for PSC-IBD were included.

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Introduction: Surgeon assessment tools are subjective and nonscalable. Objective performance indicators (OPIs), machine learning-enabled metrics recorded during robotic surgery, offer objective insights into surgeon movements and robotic arm kinematics. In this study, we identified OPIs that significantly differed across expert (EX), intermediate (IM), and novice (NV) surgeons during robotic right colectomy.

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Introduction: Hypertension, the clinical condition of persistent high blood pressure (BP), is preventable yet remains a significant contributor to poor cardiovascular outcomes. Digital self-management support tools can increase patient self-care behaviours to improve BP. We created a patient-facing and provider-facing clinical decision support (CDS) application, called the Collaboration Oriented Approach to Controlling High BP (COACH), to integrate home BP data, guideline recommendations and patient-centred goals with primary care workflows.

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Article Synopsis
  • * A study involving 38 interviews with healthcare providers revealed significant barriers in three implementation stages: patient enrollment, medication delivery, and leadership coordination.
  • * Recommendations include increasing resources and staffing at clinics, and creating guidelines to ensure equitable access and effective usage of LAI ART, aiming to make a substantial impact in the fight against HIV.
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Background: Significant variation in rectal cancer care has been demonstrated in the United States. The National Accreditation Program for Rectal Cancer was established in 2017 to improve the quality of rectal cancer care through standardization and emphasis on a multidisciplinary approach. The aim of this study was to understand the perceived value and barriers to achieving the National Accreditation Program for Rectal Cancer accreditation.

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The Georgia Quality Improvement Program (GQIP) surgical collaborative participating hospitals have shown consistently poor performance in the post-operative sepsis category of National Surgical Quality Improvement Program data as compared with national benchmarks. We aimed to compare crude versus risk-adjusted post-operative sepsis rankings to determine high and low performers amongst GQIP hospitals. The cohort included intra-abdominal general surgery patients across 10 collaborative hospitals from 2015 to 2020.

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Objective: To compare results of three preference elicitation methods for a cancer screening test.

Methods: Participants (undergraduate students) completed a discrete choice experiment (DCE) and a threshold technique (TT) task. Accuracy (false positives, false negatives), benefits (lives saved), and cost for a cancer screening test were used as attributes in the DCE and branching logic for the TT.

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Purpose: Our aim was to understand the decision making of patients in hospital who wanted cardiopulmonary resuscitation despite low probability of benefit.

Methods: We included patients admitted to general medical wards who had a low chance of surviving in-hospital cardiopulmonary resuscitation (CPR) and had an order in the chart to administer CPR. We developed an interview guide to explore participants' decision-making process, sources of information, and emotions associated with this decision.

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The Centers for Disease Control and Prevention (CDC) defines the social determinants of health (SDOH) as "the conditions in the environments where people are born, live, learn, work, play, worship, and age that affect a range of health, functioning, and quality-of-life outcomes and risks," which includes economic stability, access to quality health care, and physical environment. There is increasing evidence that SDOH have an impact in shaping a patient's access and recovery from surgery. This review evaluates the role surgeons play in reducing these disparities.

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Article Synopsis
  • Many women living with HIV face challenges in sticking to their daily oral medications, prompting the need for accessible alternatives like long-acting injectable therapies.
  • A new web-based decision aid called i.ART+support (i.ARTs) is being developed to help these women and their healthcare providers make informed choices between oral and injectable treatments.
  • The study will take place in three phases, including data collection, focus groups for content refinement, and a randomized trial to assess the effectiveness and user-friendliness of the i.ARTs tool among 180 women in Miami.
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Objective: To assess the impact of patient health literacy, numeracy, and graph literacy on perceptions of hypertension control using different forms of data visualization.

Materials And Methods: Participants (Internet sample of 1079 patients with hypertension) reviewed 12 brief vignettes describing a fictitious patient; each vignette included a graph of the patient's blood pressure (BP) data. We examined how variations in mean systolic blood pressure, BP standard deviation, and form of visualization (eg, data table, graph with raw values or smoothed values only) affected judgments about hypertension control and need for medication change.

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Mental Health Disorders (MHD) are a growing concern nationwide. The significant impact MHD have on surgical outcomes has only recently started to be understood. This literature review investigated how mental health impacts the outcomes of general surgery patients and what can be done to make improvements.

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Background: As one of the 12 clinical pathways of the Society of American Gastrointestinal and Endoscopic Surgeons (SAGES) Masters Program, the Colorectal Pathway intends to deliver didactic content organized along 3 levels of performance (competency, proficiency and mastery) each represented by an anchoring procedure (laparoscopic right colectomy, laparoscopic left/sigmoid colectomy, and intracorporeal anastomosis during minimally invasive (MIS) ileocecal or right colon resection). In this article, the SAGES Colorectal Task Force presents focused summaries of the top 10 seminal articles selected for laparoscopic right colectomy which surgeons should be familiar with.

Methods: Using a systematic literature search of Web of Science, the most cited articles on laparoscopic right colectomy were identified, reviewed, and ranked by the SAGES Colorectal Task Force and invited subject experts.

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Background: Excessive postoperative opioid prescribing contributes to opioid misuse throughout the US. The Georgia Quality Improvement Program (GQIP) is a collaboration of ACS-NSQIP participating hospitals. GQIP aimed to develop a multi-institutional opioid data collection platform as well as understand our current opioid-sparing strategy (OSS) usage and postoperative opioid prescribing patterns.

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