Back to Authors

Hyman, David W.

Mayo Clinic

Mayo Clinic

Citations 3

Pancreaticoduodenectomy After Liver Transplantation: A Single‐Center Experience
Blake, Caleb, Almerey, Tariq , Hyman, David W., Nguyen, Justin H. , Hyman, David, Nguyen, Justin, Stauffer, John

World Journal of Surgery | January 13, 2023 | Volume: 47 | Issue: 4 | Pages: 1018-1022

10.1007/s00268-022-06887-1 Get It

AbstractBackgroundThe aim of this study is to report the feasibility and short‐term outcomes of pancreaticoduodenectomy (PD) in patients who have undergone orthotopic liver transplantation (OLT).MethodsWe performed a retrospective review of a prospectively maintained pancreatic surgical database for all patients undergoing pancreaticoduodenectomy (PD) after liver transplant from January 1995 until June 2022. Demographics, indications for pancreatic resection, liver transplant and time from liver transplant to PD were reported. Operative mortality and morbidity were recorded within 90 days of surgery. Continuous variables were recorded as mean and range, while categorical variables were summarized using frequency and percentage. Postoperative complications within 90 days from PD were graded based on Clavien–Dindo classification with major complication recorded as grade IIIa or higher. Additionally, a comprehensive literature review was performed.ResultsA total of 916 patients who underwent PD at our institution between January 1995 and June 2022 were identified, and 9 patients had previous OLT. Five patients were females and 4 males with a mean age of 65 years (range 51–78). Average body mass index (BMI) was 30.8. Two patients had major complications, and three patients had minor complications. No clinically relevant POPF, PPH or DGE were observed. One patient died within 90 days from PD due to ischemic biliary pancreatic limb causing intrabdominal sepsis.ConclusionAlthough uncommon, PD after OLT is feasible with acceptable outcomes at high volume institutions and if performed by experienced surgeons.
The Impact of Caprini Guideline Indicated Venous Thromboembolism Prophylaxis in Colorectal Surgery Patients: Experience of a Single Health System
Hyman, David W., Brennan, Emily , Spaulding, Aaron , Hussain, Md Walid Akram , Muraleedharan, Divya, Casler, John D., Schreier, Diana J., Thompson, Kristine M., Brennan, Emily R, Spaulding, Aaron C. , Colibaseanu, Dorin T, Akram Hussain, Md Walid, Schreier, Diana J , Edwards, Michael A. , Spaulding, Aaron , Colibaseanu, Dorin

The American Surgeon™ | October 3, 2022 | Volume: 89 | Issue: 11 | Pages: 4720-4733

10.1177/00031348221129514 Get It

Background Venous thromboembolism (VTE) is the most common cause of preventable mortality following colorectal surgery (CRS), occurring in about 2% of patients. As a result, prophylaxis including discharge chemoprophylaxis is recommended. While VTE risk assessment tools are available, the consistent adoption and utilization of these tools remains elusive. Our study objectives were to determine the utilization and impact of risk adjusted VTE prophylaxis in CRS patients. Study Design CRS cases performed between 1/1/2016 and 5/31/2021 were retrospectively analyzed. Caprini score and implemented VTE prophylaxis measures were determined. The primary outcome measure was receiving Caprini guideline indicated VTE prophylaxis. Secondary outcomes included VTE and bleeding. Categorical variables were compared by chi-square and Fisher’s exact tests, and continuous variables by Kruskal-Wallis test. Logistic regression models were used to determine predictors of receiving appropriate VTE prophylaxis or experiencing postoperative VTE and bleeding. Results 10,422 CRS cases were analyzed and 90.6% were high risk for VTE. In-hospital appropriate prophylaxis rates in low, moderate, high, and very high-risk category patients were 91.2%, 56.1%, 61.0%, and 63.1%, respectively. Inpatient VTE was reduced by 75% in those receiving appropriate VTE prophylaxis. At discharge, 5.8% of patients received appropriate prophylaxis, in whom there were no VTE events at 30- and 90 days from discharge. Increasing Caprini score positively correlated with VTE risk in both the inpatient and discharge cohorts, but inversely correlated with the likelihood of receiving appropriate prophylaxis at discharge (OR .31, P <.0001). Conclusion Caprini guideline indicated VTE prophylaxis in CRS patients reduced VTE events without increasing bleeding complications.
Comparing Post-Operative Outcomes of Pancreaticoduodenectomy for Pancreatic Ductal Adenocarcinoma: Neoadjuvant Therapy Versus Surgery First Approach
Hyman, David W., Almerey, Tariq , Mujkanović, Amer , Hammons, Isaac, Tice, Mary, Stauffer, John

The American Surgeon™ | April 23, 2022 | Volume: 88 | Issue: 8 | Pages: 1868-1874

10.1177/00031348221087900 Get It

Objectives Optimal use of surgery first (SF) vs neoadjuvant therapy (NAT) for localized pancreatic ductal adenocarcinoma (PDAC) is still unclear. There is concern that NAT may result in worsened post-operative outcomes. Our study objectives were to show the impact of NAT on post-operative morbidity and mortality. Methods All patients undergoing resection for PDAC between 1/1/2010 and 12/31/2020 were reviewed and those who underwent pancreaticoduodenectomy (PD) were included. Demographics, perioperative details, and pathology details were gathered. Data pertaining to 90-day complications were obtained and graded according to international consensus guidelines. Those undergoing SF were compared to those who had NAT. Categorical variables were compared by Fisher’s exact test and continuous variables by Student’s t-test. Results Two hundred and forty-one subjects who underwent PD for PDAC were included in this review. There was no significant difference in the rate of major morbidity between subjects who received NAT vs SF (19.4 vs 20.3%, P = 1.0). Similarly, there were no significant differences in the rates of mortality (3.1 vs 4.2%, P = .742), post-operative pancreatic fistula (8.2 vs 10.5%, P = .658), or post-pancreatectomy hemorrhage (7.1 vs 7.7%, P = 1.0), respectively. Conclusion Post-operative outcomes are not worsened by the use of the NAT approach prior to PD for PDAC. Further investigation is needed to reveal which patient subgroups may benefit from the use of NAT, especially regarding survival.