Related Experiment Video

Updated: Feb 15, 2026

Robotic Pancreatoduodenectomy for Pancreatic Head Cancer: a Case Report of a Standardized Technique

Robotic Pancreatoduodenectomy for Pancreatic Head Cancer: a Case Report of a Standardized Technique

Published on: June 24, 2022

The Vertical Array Reconstruction Technique in Pylorus-Preserving Pancreatoduodenectomy

Shinjiro Kobayashi¹, Satoshi Koizumi¹, Takashi Hatori²

¹Department of Gastroenterological and General Surgery, St. Marianna University School of Medicine, Kawasaki, Japan.

Digestive Surgery

|January 10, 2018

Abstract

Background/Aims:

We describe a new reconstruction method of duodenojejunal anastomosis, the "vertical array reconstruction" (VAR) technique, following pylorus-preserving pancreatoduodenectomy (PPPD).

Methods:

The VAR technique aligns the stomach, duodenum, and jejunal loop vertically along the body's longitudinal axis. It was performed in 120 consecutive patients (between June 2008 and October 2015) who underwent PPPD. We evaluated the incidence of delayed gastric emptying (DGE).

Results:

The incidence of DGE was 1.7% (n = 2). The proposed clinical grading classified these 2 cases of DGE as grade B. There was no DGE related to pancreatic fistula. The median duration to starting a solid diet was 3 days (range 3-5 days). The median operative time was 450 min (range 391-550 min).

Conclusion:

The VAR technique allows the upper digestive tract to be aligned linearly and can minimize the risk of DGE after PPPD.

Keywords:

Delayed gastric emptying Pancreatoduodenectomy Pylorus-preserving pancreatoduodenectomy

More Related Videos

Laparoscopic Pancreatoduodenectomy With Modified Blumgart Pancreaticojejunostomy

Laparoscopic Pancreatoduodenectomy With Modified Blumgart Pancreaticojejunostomy

Published on: June 17, 2018

Laparoscopic Pancreatoduodenectomy for Pancreatic Cancer Using In-Situ No-Touch Isolation Technique

Laparoscopic Pancreatoduodenectomy for Pancreatic Cancer Using In-Situ No-Touch Isolation Technique

Published on: February 2, 2022

Related Concept Videos

Vertical Curve: Problem Solving

Vertical Curve: Problem Solving

Vertical curves provide the transition between two roadway grades, ensuring safety, comfort, and functionality. Calculating elevations at specific stations along the curve involves several systematic steps based on the curve's geometry and provided design parameters.The vertical curve is defined by its length, grades, Point of Vertical Intersection (P.V.I.) location, and P.V.I. elevation. The stations of the Point of Vertical Curvature (P.V.C.), where the curve begins, and the Point of Vertical...

Introduction to Vertical Curves

Introduction to Vertical Curves

Vertical curves are parabolic transitions that connect different grades on highways and railroads, ensuring a smooth alignment between back and forward tangents. The back tangent represents the initial grade, while the forward tangent defines the subsequent grade. These curves can be symmetrical, with equal tangent lengths, or nonsymmetrical, with varying lengths. The key points defining a vertical curve include the Point of Vertical Intersection (P.V.I.), where the tangents meet; the Point of...

Elevation of Intermediate Points on Vertical Curves

Elevation of Intermediate Points on Vertical Curves

Vertical curves are essential in roadway design because they provide smooth transitions between varying roadway grades. Designing vertical curves involves calculating intermediate elevations and identifying the curve's highest or lowest point, which is essential for optimal roadway performance.Intermediate elevations on a vertical curve are determined using the tangent offset method. This method considers the initial elevation at the start of the curve, the grades, and the curve's geometry. The...

Sight Distance in a Vertical Curve

Sight Distance in a Vertical Curve

Sight distance on vertical curves is critical in roadway design. It ensures drivers can see far enough ahead to identify and respond to hazards effectively. This directly impacts safety, driver comfort, and the overall efficiency of the transportation network.Vertical curves are classified into crest and sag curves based on their geometry. For crest curves, sight distance is determined by the line of sight between a driver's eye and a small object on the road's surface. Design parameters for...

Reconstruction of Signal using Interpolation

Reconstruction of Signal using Interpolation

Signal processing techniques are essential for accurately converting continuous signals to digital formats and vice versa. When a continuous signal is sampled with a period T, the resulting sampled signal exhibits replicas of the original spectrum in the frequency domain, spaced at intervals equal to the sampling frequency. To handle this sampled signal, a zero-order hold method can be applied, which creates a piecewise constant signal by retaining each sample's value until the next...

Electron Microscope Tomography and Single-particle Reconstruction

Electron Microscope Tomography and Single-particle Reconstruction

Transmission electron microscopy (TEM) can be used to determine the 3D structure of biological samples with the help of techniques such as electron microscope tomography and single-particle reconstruction. While single-particle reconstruction can examine macromolecules and macromolecular complexes in vitro conditions only, tomography permits the study of cell components or small cells in vivo.
Electron Tomography
Electron tomography can be performed either in TEM or STEM (scanning transmission...

Articles linked to this work by shared authors, journal, and citation graph.

Transarterial embolization of ruptured distal choroidal artery aneurysm in Moyamoya disease: A case series and literature review.

Surgical neurology international·2026

Nuclear Chromatin Heterogeneity in High-Grade PanIN Detected by Serial Pancreatic Juice Aspiration Cytological Examination (SPACE): A Report of Two Cases.

Diagnostic cytopathology·2026

Safety and Effectiveness of Embolization via the Ophthalmic Artery with N-butyl Cyanoacrylate for Anterior Skull Base Meningiomas.

Neurologia medico-chirurgica·2026

Safety and efficacy of stereotactic radiosurgery for selected borden type III dural arteriovenous fistulas.

Neurosurgical review·2026

DynaTOF: Time-Resolved Noncontrast Cerebral MR Angiography Using Spatially Modulated RF Saturation.

Magnetic resonance in medicine·2026

Detailed evaluation of the long-term outcomes of repeat stereotactic radiosurgery for brain arteriovenous malformations: A single-center retrospective study.

Neurosurgical review·2026

See all related articles