Publications by authors named "Dennis Hong"

Background: Frailty is increasingly recognized as a perioperative risk for numerous surgical diseases. We applied the modified frailty index (mFI-11) to the National Inpatient Sample (NIS) for patients undergoing surgery for colorectal cancer (CRC).

Methods: We performed a retrospective analysis of the NIS (2015-2019) including CRC patients undergoing surgery.

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Article Synopsis
  • Recent guidelines on bariatric and metabolic surgery exist, but their quality is uncertain, prompting this study to assess them for perioperative care decisions.
  • A thorough search of medical databases identified 26 guidelines for evaluation using the AGREE II framework, which measures guideline quality across several domains.
  • Findings revealed mixed results: while guidelines were clear and targeted well, they often lacked stakeholder input, rigorous development, and attention to resource impacts, with only six guidelines scoring above 70%.*
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Background: The global burden of obesity has reached epidemic proportions, placing great strain on the North American healthcare system. We designed a retrospective cohort database study comparing postoperative morbidity and healthcare resource utilization between patients living with and without obesity undergoing surgery for colorectal cancer.

Methods: Adult patients undergoing resection for colorectal cancer were identified from the 2015 to 2019 National Inpatient Sample database.

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Background: Some observational data have suggested that anastomotic leak may be reduced with triple-row staple technology compared to double-row staple technology. We aimed to investigate this further by performing a systematic review comparing double- and triple-row staple technology for colorectal anastomoses.

Methods: This systematic review was reported in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines.

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Background: Frailty has been associated with increased postoperative mortality and morbidity; however, the use of the modified frailty index (mFI-11) to assess patients undergoing surgery for diverticular disease has not been widely assessed. This paper aims to examine frailty, evaluated by mFI-11, to assess postoperative morbidity and mortality among patients undergoing operative intervention for colonic diverticular disease.

Methods: We used data from the Healthcare Cost and Utilization Project National Inpatient Sample (October 1, 2015-December 31, 2019).

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  • The study investigates whether preoperative C-reactive protein (CRP) levels can predict anastomotic leaks (AL) and other complications in elective colorectal surgery.
  • It reviewed 23 studies involving over 7,000 patients and found that higher preoperative CRP levels were linked to increased postoperative infective complications, but not specifically to AL or overall morbidity.
  • The results suggest that while preoperative CRP can indicate a risk for infections post-surgery, it does not reliably predict anastomotic leaks or overall surgical complications.
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Background: The formulation of clinical recommendations pertaining to bariatric surgery is essential in guiding healthcare professionals. However, the extensive and continuously evolving body of literature in bariatric surgery presents considerable challenge for staying abreast of latest developments and efficient information acquisition. Artificial intelligence (AI) has the potential to streamline access to the salient points of clinical recommendations in bariatric surgery.

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Aim: Preoperative frailty has been associated with adverse postoperative outcomes in various populations, but of its use in patients with inflammatory bowel disease (IBD) remains sparse. The present study aimed to characterize the impact of frailty, as measured by the modified frailty index (mFI), on postoperative clinical and resource utilization outcomes in patients with IBD.

Methods: This retrospective population-based cohort study assessed patients from the National Inpatient Sample database from 1 September 2015 to 31 December 2019.

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Background: Prolonged postoperative ileus (PPOI) contributes to morbidity and prolonged hospitalization. Prucalopride, a selective 5-hydroxytryptamine receptor agonist, may enhance bowel motility. This review assesses whether the perioperative use of prucalopride compared to placebo is associated with accelerated return of bowel function post gastrointestinal (GI) surgery.

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  • - This study explored how the modified frailty index (mFI) could predict outcomes in patients undergoing surgery for adhesive small bowel obstruction after non-surgical treatment failed.
  • - It included a retrospective analysis of 133 patients, highlighting that frail individuals experienced higher 30-day complications and greater care needs post-surgery compared to robust patients.
  • - Results indicated that while frailty status showed some differences in outcomes, factors like functional dependence and surgical delays were more strongly linked to worse postoperative results.
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Background: There are limited data identifying predictors of postoperative outcomes in adhesive small bowel obstruction (ASBO). This study used the National Inpatient Sample (NIS) to assess the efficacy of the modified frailty index (mFI) to predict postoperative morbidity among patients undergoing an operation for ASBO.

Methods: A retrospective analysis of the NIS between September 1, 2015, and December 31, 2019, was performed to identify adult patients who underwent nonelective operative intervention for ASBO.

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  • - The study examines "financial toxicity," a term for the economic burden that patients face from medical treatments, specifically focusing on those with inflammatory bowel disease (IBD) who undergo surgery.
  • - Using data from the National Inpatient Sample, researchers found that 86.5% of uninsured patients faced financial toxicity, while none of the insured patients did; the average hospital cost was over $21,000.
  • - Key factors contributing to financial toxicity included emergency admissions, low income, specific types of IBD (ulcerative colitis), and demographic factors like race and gender, highlighting the need for support for uninsured patients facing surgery.
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Background: Postoperative gastrointestinal dysfunction (POGD) commonly occurs following gastrointestinal (GI) surgery and is associated with specific anesthetic agents. Cholinesterase inhibitors employed for reversing neuromuscular blockade have been implicated in development of POGD. Sugammadex, a novel reversal agent, is linked with reduced POGD.

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Purpose: Up to 40% of patients with inflammatory bowel disease (IBD) are obese. Obesity is a well-known risk factor for increased perioperative morbidity, but this risk has never been quantified in IBD patients undergoing abdominal surgery using the United States National Inpatient Sample (NIS) database. This study aims to compare postoperative morbidity between obese and non-obese patients undergoing bowel resection for IBD using recent NIS data.

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Aim: Obesity is a well-established risk factor for the development of colorectal cancer. As such, patients undergoing surgery for colorectal cancer have increasingly higher body mass indices (BMIs). The advances in minimally invasive surgical techniques in recent years have helped surgeons circumvent some of the challenges associated with operating in the setting of obesity.

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Background: Maintenance of normothermia is a crucial part of enhanced recovery after colorectal surgery. Dry-cold carbon dioxide (CO ) traditionally used for insufflation in laparoscopic surgery and negative pressure operating theatres has been associated with intraoperative hypothermia. Studies suggest that use of warmed-humidified CO may promote normothermia.

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Background: Lymph node ratio is the number of lymph nodes with evidence of metastases on pathological review compared to the total number of lymph nodes harvested during oncologic resection. Lymph node ratio is a proven predictor of long-term survival. These data have not been meta-analyzed to determine the prognosis associated with different lymph node ratio cut-offs in colon cancer.

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Background: The p value has been criticized as an oversimplified determination of whether a treatment effect exists. One alternative is the fragility index. It is a representation of the minimum number of nonevents that would need to be converted to events to increase the p value above 0.

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Background: Bariatric surgery is the most effective and sustainable form of weight loss. Bariatric surgery before elective operations for colorectal pathology may improve postoperative outcomes. To compare patients with and without prior bariatric surgery undergoing surgery for colorectal cancer in terms of postoperative morbidity and health care use.

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Introduction: Despite being the preferred modality for treatment of colorectal cancer and diverticular disease, minimally invasive surgery (MIS) has been adopted slowly for treatment of inflammatory bowel disease (IBD) due to its technical challenges. The present study aims to assess the disparities in use of MIS for patients with IBD.

Methods: A retrospective analysis of the National Inpatient Sample (NIS) database from October 2015 to December 2019 was conducted.

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Background: Laparoscopic adjustable gastric banding (AGB) was historically among the most performed bariatric procedures but has fallen out of favor in recent years due to poor long-term weight loss and high revisional surgery rates. Significant financial hardship of medical care, known as "financial toxicity," can occur from experiencing unexpected complications of AGB.

Objective: To investigate the risk of financial toxicity among patients being admitted for AGB complications.

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Background: In the surgical management of GERD, the traditional procedure is laparoscopic total (Nissen) fundoplication. However, partial fundoplication has been advocated as providing similar reflux control while potentially minimizing dysphagia. The comparative outcomes of different approaches to fundoplication are a topic of ongoing debate and long-term outcomes remain uncertain.

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