Author Archives: E. Lawson

Liver hanging maneuver: an anatomic and clinical review.

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Gaujoux S, et al. Liver hanging maneuver: an anatomic and clinical review. Am J Surg. 2007 Apr;193(4):488-92.

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“LHM is as an effective and safe method of guiding hepatic transection to the IVC during right hepatectomies with a feasibility rate up to 95% and minor bleeding in 0% to 6% of cases. According to small series and experts’ opinions, LHM would improve parenchymal transection by reducing operative time and blood loss. The tape would ensure a linearly cut surface with IVC safer protection, better exposure, and hemostasis of the deeper plane. Limited remnant liver mobilization could reduce the risk for malignant dissemination and improve liver function. Hepatectomies for huge tumor with diaphragm adhesions could be facilitated.”

Glissonian approach during hepathectomy

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Chapuis-Roux E, et al. Glissonian approach during hepathectomy (with video). J Visc Surg. 2015 Jun;152(3):199-200.

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“To facilitate liver resection, a technique of glissonian approach was developed [2]. The glissonian approach during hepatectomy is a selective vascular clamping procedure reproducible requiring preoperative imaging data study and intraoperative ultrasound Doppler [3] and permeability with US air test [4]. In practice, this approach is feasible in about 80% of patients due to portal anatomical abnormalities.”

Article of interest: The Freemartin Cattle and Clinical Transplantation: From the Ancients to Modern Day

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Lovasik BP. The Freemartin Cattle and Clinical Transplantation: From the Ancients to Modern Day. Transplantation. 2020 Aug;104(8):1537-1541.

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This historical retrospective explores the study of the freemartin condition and its impact on the discovery of immunologic tolerance and the field of transplant surgery-from the ancient Romans, to early modern anatomists Valsalva, Scarpa, and Hunter, to contemporary immunologists Owen, Medawar, and Billingham, and to legendary transplant surgeon Joseph Murray. The legacy of freemartin cattle in the understanding of acquired tolerance and transplant immunology represents generations of scientific inquiry guided by careful observation and occasional serendipity, and the present-day immunologists and surgeons exploring immune transplant tolerance owe much to the history of the freemartin, several millennia in the making.

Patient Selection for Total Pancreatectomy with Islet Autotransplantation in the Surgical Management of Chronic Pancreatitis

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Morgan KA, Lancaster WP, Owczarski SM, et al. Patient Selection for Total Pancreatectomy with Islet Autotransplantation in the Surgical Management of Chronic Pancreatitis. J Am Coll Surg. 2018 Apr;226(4):446-451.

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Results: One hundred and ninety-five patients (141 women, aged 40.3 years, BMI 26.5 kg/m2) underwent TPIAT. Mean duration of disease before operation was 8.1 years. Fifty-six (29%) patients had pancreatic operations before TPIAT, 37 (19%) patients were diabetic preoperatively, and 52 (27%) patients were smokers. A mean of 3,253 islet equivalents transplanted/kg were harvested. Insulin independence was achieved in 29%, 28%, and 23% of patients at 1, 2, and 5 years postoperative. Nonsmokers with a shorter duration of chronic pancreatitis and no earlier pancreas operation were more likely to be insulin free. Median number of preoperative emergency department visits and hospitalizations were 6.6 and 4.3 annually, respectively, compared with 0 at 1, 2, and 5 years postoperative. Median oral morphine equivalents were 214 mg/kg preoperation and 60, 64, 69, at 1, 2, 5 years postoperative. Preoperative, 1, 2, 5 years postoperative QOL scores were 29, 36, 34, and 33 (physical; p < 0.01) and 39, 44, 42, and 42 (mental health; p < 0.02). Genetic pancreatitis patients were more often narcotic free and had better QOL than patients with pancreatitis of other causes. At 5 years, overall survival was 92.3%.

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Crohn’s Disease: Biologics and immunomodulators

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Hazlewood GS, et al. Comparative effectiveness of immunosuppressants and biologics for inducing and maintaining remission in Crohn’s disease: a network meta-analysis. Gastroenterology. 2015 Feb;148(2):344-54.e5; quiz e14-5.

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Key Findings: 

“One good-quality RCT and one poor-quality RCT were included. Intravenous infliximab was compared to oral ciclosporin, azathioprine, and the combination of azathioprine and infliximab among moderate-to-severe ulcerative colitis patients without adequate response to corticosteroid treatment. In a pragmatic trial, there was no significant difference in quality-adjusted survival, mortality, colectomy rates, time to colectomy, lengths of hospital stay after randomization, severe adverse reactions or severe adverse effects, and quality of life measures. However, ciclosporin was associated with longer log-transformed hospital stays than infliximab. In the same trial, the UK resource use was considered. It was concluded that the total health service costs for ciclosporin were considerably lower than infliximab and ciclosporin was not less effective than infliximab.

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Article of Interest: Avoiding Pitfalls in Insulinomas by Preoperative Localization with a Dual Imaging Approach

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Ramonell KM, Saunders ND, Sarmiento J, Bercu Z, Martin L, Weber CJ, Sharma J, Patel SG. Avoiding pitfalls in insulinomas by preoperative localization with a dual imaging approach. Am Surg. 2019 Jul 1;85(7):742-746.

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15-Year Patency and Life Expectancy After Primary Stenting Guided by Intravascular Ultrasound for Iliac Artery Lesions in Peripheral Arterial Disease

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Kumakura H, et al. 15-Year Patency and Life Expectancy After Primary Stenting Guided by Intravascular Ultrasound for Iliac Artery Lesions in Peripheral Arterial Disease. JACC Cardiovasc Interv. 2015 Dec 21;8(14): 1893-901.

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Methods: EVT was performed for 507 lesions in 455 patients with PAD. The 15-year endpoints were primary, primary-assisted, and secondary patency; overall survival; freedom from major adverse cardiovascular events (MACE); and freedom from major adverse cardiovascular and limb events (MACLE).

Results: The 5-, 10-, and 15-year primary and secondary patencies were 89%, 83%, and 75%, respectively, and 92%, 91%, and 91%, respectively. There were no significant differences among TASC-II categories.

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