scholarly journals Y-en-Roux reconstruction in abdominal surgery: historical retrospective of operative method’s evolution. Part I

2021 ◽  
Vol 99 (2) ◽  
pp. 153-160
Author(s):  
M. A. Evseev ◽  
V. S. Fomin ◽  
I. M. Klishin ◽  
A. M. Evseev
Keyword(s):  
Bariatric Surgery ◽  
Abdominal Surgery ◽  
Historical Review ◽  
Routine Practice ◽  
Hepatobiliary Surgery ◽  
Digestive Tube ◽  
Evolution And Development ◽  
Theoretic Concept ◽  
Concept Evolution ◽  
Unique Method

Target of this historical review is focused on analysis of highly relevant, unique method proposed by A. Wölfler, E. Doyen and C. Roux more than 140 years ago, also we try to present main facts and chronology of development of concept Y-reconstruction of digestive tube. Hereby we present historical retrospective of theoretic concept creation, experimental verification and initial clinical experience of Y-shaped reconstruction of digestive tube on Roux-en-Y-loop, stages of concept evolution and development till the end of XIX age till our days. The founders’ scientific research onducted in surgical gastroenterology, oncology, pancreatology and hepatobiliary surgery, has expanded application of Roux-en-Y-reconstruction from distal resection of the stomach and gastroenterostomy to gastrectomy, repeated operations on the upper part of the digestive tube, the formation of biliary-digestive and pancreatic anastomoses, as well as the use in the routine practice of bariatric surgery.

scholarly journals Y-en-Roux reconstruction in abdominal surgery: historical retrospective of operative method’s evolution. Part II

2021 ◽  
Vol 99 (3) ◽  
pp. 228-233
Author(s):  
M. A. Evseev ◽  
V. S Fomin ◽  
I. M. Klishin ◽  
A. M. Evseev
Keyword(s):  
Historical Review ◽  
Routine Practice ◽  
Hepatobiliary Surgery ◽  
Pancreatic Anastomosis ◽  
Digestive Tube ◽  
Evolution And Development ◽  
Theoretic Concept ◽  
Concept Evolution ◽  
Unique Method ◽  
The 19Th Century

This historical review is more focused on the analysis of highly relevant, unique method proposed by A. Wölfl er, E. Doyen and C. Roux more than 140 years ago. We also try to present main facts and the chronology of Y-reconstruction of the digestive tube concept’s development. Hereby we present historical retrospective of theoretic concept creation, experimental confi rmation and initial clinical experience of Y-shaped reconstruction of the digestive tube on Roux-en-Y-loop, stages of concept evolution and development from the end of the 19th century and continuing into current times. Scientifi c research of surgical gastroenterology, oncology, pancreatology and hepatobiliary surgery founders, expand application of Roux-en-Y-reconstruction from distal resection of the stomach and gastroenterostomy to gastrectomy, repeated operations on the upper part of the digestive tube, the formation of biliary-enteric and pancreatic anastomosis, and the use in the routine practice of bariatric surgery.

Long-Term Impact of Bariatric Surgery

2017 ◽  
Author(s):  
Michael E. Hochman
Keyword(s):  
Bariatric Surgery ◽  
Gastric Bypass ◽  
Abdominal Surgery ◽  
Vertical Banded Gastroplasty ◽  
Clinical Case ◽  
Long Term Impact ◽  
Study Intervention ◽  
Landmark Study

This chapter provides a summary of a landmark study in abdominal surgery. Does bariatric surgery in obese individuals reduce mortality? Starting with that question, it describes the basics of the study, including funding, year study began, year study was published, study location, who was studied, who was excluded, how many patients, study design, study intervention, follow-up, endpoints, results, and criticism and limitations. The chapter briefly reviews other relevant studies and information, gives a summary and discusses implications, and concludes with a relevant clinical case involving possible bariatric surgery, including gastric banding, vertical banded gastroplasty, or gastric bypass, for an obese man who has not had success with dieting.

scholarly journals Myocardial Work: Methodology and Clinical Applications

Diagnostics ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 573
Author(s):  
Konstantinos Papadopoulos ◽  
Özge Özden Tok ◽  
Konstantina Mitrousi ◽  
Ignatios Ikonomidis
Keyword(s):  
Global Longitudinal Strain ◽  
Myocardial Strain ◽  
Left Ventricular ◽  
Lv Function ◽  
Routine Practice ◽  
Reference Curve ◽  
Imaging Tool ◽  
Arterial Blood ◽  
Unique Method ◽  
Detailed Assessment

A precise and accurate assessment of left ventricular (LV) contractility is of utmost importance in terms of prognosis in most cardiac pathologies. Given the limitations of ejection fraction (EF) and global longitudinal strain (GLS) due to their load dependency, a novel imaging tool called myocardial work (MW) has emerged as a promising method for LV performance evaluation. MW is a novel, less load-dependent method based on computation of myocardial strain–arterial blood pressure curves. This method provides a more detailed assessment of segmental and global LV function incorporating the patient’s LV pressure and is derived by brachial artery pressure utilizing an empiric reference curve adjusted to the duration of the isovolumic and ejection phases as determined by echocardiography. The clinical implications of this unique method have been expanding in the last few years, which attest to the robust additive role of MW in routine practice.

Is Previous Abdominal Surgery an Obstacle to Laparoscopic Bariatric Surgery?

2021 ◽  
Author(s):  
Emre Turgut ◽  
Kuntay Kaplan ◽  
Gokalp Okut ◽  
Yusuf Murat Bağ ◽  
Fatih Sumer ◽  
...  
Keyword(s):  
Bariatric Surgery ◽  
Abdominal Surgery ◽  
Laparoscopic Bariatric Surgery ◽  
Previous Abdominal Surgery

scholarly journals Quantitative assessment of aggregate segregation of hardened self compacted concrete based on 2D image analysis

2019 ◽  
Author(s):  
Jerzy Wawrzeńczyk ◽  
Agnieszka Molendowska ◽  
Adam Kłak
Keyword(s):  
Image Analysis ◽  
Quantitative Assessment ◽  
Concrete Specimen ◽  
Assessment Method ◽  
Hardened Concrete ◽  
Routine Practice ◽  
Self Compacting Concrete ◽  
Coarse Aggregates ◽  
Unique Method ◽  
Strength And Durability

Self-compacting concrete developed as a material that does not need vibration for compaction has been increasingly being used in routine practice. Successful application of self-compacting concrete (SCC) is difficult to achieve due to increased flowability of the concrete mixture. Segregation of aggregate is one of the major problems during construction and ultimately influences the strength and durability of SCC. A fresh self-compacting concrete with poor segregation resistance can lead to a nonuniform distribution of coarse aggregates in the concrete volume, contributing to blockage of concrete flow, and nonuniform mechanical properties and durability at the hardened concrete. The article presents the unique method for quantitative assessment of aggregate segregation in hardened self-compacted concrete. A digital image analysis procedure using original lighting microscope equipment has been placed to investigate the concrete segregation behavior. The photographs of concrete specimen surfaces were taken to calculate measurements of aggregate volume in concrete. The research results showed that the originally developed attachment and unique aggregate segregation assessment method are useful in laboratory tests and could be used in the on-site application.

scholarly journals Clinical Features and Prognosis of Gas-forming and Non-gas-forming Pyogenic Liver Abscess: A Comparative Study

2020 ◽  
Author(s):  
Jia Zhang ◽  
Yi Gao ◽  
Zhaoqing Du ◽  
Yifan Ren ◽  
Jianbin Bi ◽  
...  
Keyword(s):  
Abdominal Surgery ◽  
Clinical Features ◽  
Liver Abscess ◽  
Pathogenic Bacteria ◽  
Early Stage ◽  
Pyogenic Liver Abscess ◽  
Hepatobiliary Surgery ◽  
History Of ◽  
Hospital Stays ◽  
Background Gas

Abstract Background Gas-forming pyogenic liver abscess (GFPLA) accounts for up to 30% of all pyogenic liver abscess (PLA) cases. However, little is known of the differences in clinical features and prognosis between GFPLA and non-GFPLA. Aim This retrospective study compared the clinical features and prognosis of GFPLA and non-GFPLA. Methods Data of 392 patients with PLA treated from 1 January 2007 to 31 December 2016 were reviewed. GFPLA was defined as gas in the abscess. Liver abscesses were considered non- GFPLA (n = 326) or GFPLA (n = 66). The clinical features and outcomes of patients with GFPLA were compared relative to that of patients without GFPLA. Results The groups were similar in gender ratio, age, smoking, drinking, and coexistences. Klebsiella pneumoniae was the most common pathogenic bacteria, but the negative rate of bacterial culture of the non-GFPLA group was significantly higher than that of the GFPLA, and the GFPLA group had a significantly higher rate of previous abdominal surgery, especially hepatobiliary surgery. Compared with the non-GFPLA group, the percentage of the GFPLA group with antibiotics combined with percutaneous drainage was significantly higher, while the percentages given antibiotics alone and antibiotics combined with surgical drainage were significantly lower. GFPLA patients had significantly higher rates of sepsis and pleural effusion, and longer hospital stays than did non-GFPLA patients. No patient died during hospitalization. Conclusions GFPLA is associated with past abdominal surgery, especially hepatobiliary surgery. Patients with a history of abdominal surgery should be monitored more closely in the early stage of the PLA. GFPLA has high rates of sepsis and long hospitalization. It needs to be recognized as a distinct clinical entity.

Does previous abdominal surgery affect the course and outcomes of laparoscopic bariatric surgery?

2018 ◽  
Vol 14 (7) ◽  
pp. 997-1004 ◽  
Author(s):  
Piotr Major ◽  
Jakub Droś ◽  
Artur Kacprzyk ◽  
Michał Pędziwiatr ◽  
Piotr Małczak ◽  
...  
Keyword(s):  
Bariatric Surgery ◽  
Abdominal Surgery ◽  
Laparoscopic Bariatric Surgery ◽  
Previous Abdominal Surgery

UHV-TEM studies of laser-induced damage

1991 ◽  
Vol 49 ◽  
pp. 632-633
Author(s):  
T.S. Savage ◽  
R. Ai ◽  
D. Dunn ◽  
L.D. Marks
Keyword(s):  
Surface Science ◽  
Rapid Heating ◽  
Local Heating ◽  
Routine Practice ◽  
Transmission Electron ◽  
Northwestern University ◽  
Laser Induced Damage ◽  
Set Up ◽  
Focusing Lens ◽  
Diffusion Of Impurities

The use of lasers for surface annealing, heating and/or damage has become a routine practice in the study of materials. Lasers have been closely looked at as an annealing technique for silicon and other semiconductors. They allow for local heating from a beam which can be focused and tuned to different wavelengths for specific tasks. Pulsed dye lasers allow for short, quick bursts which can allow the sample to be rapidly heated and quenched. This short, rapid heating period may be important for cases where diffusion of impurities or dopants may not be desirable.At Northwestern University, a Candela SLL - 250 pulsed dye laser, with a maximum power of 1 Joule/pulse over 350 - 400 nanoseconds, has been set up in conjunction with a Hitachi UHV-H9000 transmission electron microscope. The laser beam is introduced into the surface science chamber through a series of mirrors, a focusing lens and a six inch quartz window.

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