Related Experiment Video
Updated: May 26, 2026

08:09
A Novel Ex Ovo Banding Technique to Alter Intracardiac Hemodynamics in an Embryonic Chicken System
Published on: May 13, 2016
Let loose technique, an option in band migration
Pedro Miguel Mesquita Vasconcelos1, Joaquim Pedroso Costa, Vânia Tavares
1General Surgery Department, Hospital de Santarém, Av. Bernardo Santareno, 2005-177 Santarém, Portugal. mesquita.vasconcelos@hds.min-saude.pt
Obesity Surgery
|December 16, 2011
Summary
Bariatric surgery complications like gastric band migration can be managed with the novel "let loose" technique. This minimally invasive procedure offers a less costly and safer alternative for specific patient cases.
Area of Science:
- Bariatric Surgery
- Gastroenterology
- Surgical Innovation
Background:
- Obesity is a significant global health issue requiring effective treatment options.
- Bariatric surgery, including laparoscopic adjustable gastric banding, has been performed since 2005 at the Hospital de Santarém.
- Gastric band migration is a known complication of this procedure.
Observation:
- Three cases of gastric band migration were observed among 77 laparoscopic adjustable gastric banding procedures.
- A new classification for band migration is proposed.
- The 'let loose' technique is introduced as a management strategy for specific migration cases.
Findings:
- The 'let loose' technique is suitable for band migration beyond the angle of Treitz without other complications.
- This procedure involves removing the port under local anesthesia, leaving the insufflation tube, and awaiting natural elimination of the band.
- Initial results of the 'let loose' technique are satisfactory and encouraging.
Implications:
- This technique offers a less costly and lower-risk alternative to surgical removal (laparoscopy or laparotomy) for band migration.
- It provides a new management option for patients experiencing specific types of gastric band complications.
- Further investigation into the long-term efficacy and broader applicability of the 'let loose' technique is warranted.
Related Concept Videos
Bandpass Sampling
In signal processing, bandpass sampling is an effective technique for sampling signals that have most of their energy concentrated within a narrow frequency band. This type of signal is known as a bandpass signal. The key principle of bandpass sampling involves sampling the signal at a rate that is greater than twice the signal's bandwidth to prevent aliasing.
A bandpass signal has a spectrum with a lower frequency limit, denoted as ω1, and an upper frequency limit, denoted as ω2. The spectrum...
A bandpass signal has a spectrum with a lower frequency limit, denoted as ω1, and an upper frequency limit, denoted as ω2. The spectrum...
Migration
Migration is long-range, seasonal movement from one region or habitat to another. This common strategy, carried out by many different organisms around the world, is an adaptive response that typically corresponds to changes in an organism’s environment, like resource availability or climate. Migrations can involve huge groups of thousands of animals as well as single individuals traveling alone and can range from thousands of kilometers to just a few hundred meters.
Band Theory
When two or more atoms come together to form a molecule, their atomic orbitals combine and molecular orbitals of distinct energies result. In a solid, there are a large number of atoms, and therefore a large number of atomic orbitals that may be combined into molecular orbitals. These groups of molecular orbitals are so closely placed together to form continuous regions of energies, known as the bands.
The energy difference between these bands is known as the band gap.
Conductor, Semiconductor,...
The energy difference between these bands is known as the band gap.
Conductor, Semiconductor,...
Method of Joints
The method of joints is a commonly used technique to analyze the forces in structural trusses. The method is based on the principle of equilibrium, which assumes that the truss members are connected by frictionless pins. The forces at each joint can be determined by considering the equilibrium of the forces acting on that joint.
Since plane truss members are in the same plane, each joint is subjected to a coplanar and concurrent force system. To apply the method of joints, the first step is to...
Since plane truss members are in the same plane, each joint is subjected to a coplanar and concurrent force system. To apply the method of joints, the first step is to...
Leaving Groups
The nature of leaving groups strongly influences the outcome of a nucleophilic substitution reaction.
In general, in a nucleophilic substitution reaction, a nucleophile displaces a functional group, called the leaving group, from the substrate to give a substituted product. A leaving group departs the substrate molecule through heterolytic cleavage, taking the pair of electrons with it to become a relatively stable weak base in the form of an anion or a neutral molecule.
In a nucleophilic...
In general, in a nucleophilic substitution reaction, a nucleophile displaces a functional group, called the leaving group, from the substrate to give a substituted product. A leaving group departs the substrate molecule through heterolytic cleavage, taking the pair of electrons with it to become a relatively stable weak base in the form of an anion or a neutral molecule.
In a nucleophilic...
Problem-Solving: Tuning of a Guitar String
In the case of stringed instruments like the guitar, the elastic property that determines the speed of the sound produced is its linear mass density or the mass per unit length. This is simply called the linear density. If the string's linear density is constant along the string, then the linear density is simply the total mass divided by the total length.
The string's wave speed can be regulated by varying the linear density. Tension is the other property that determines the speed of...
The string's wave speed can be regulated by varying the linear density. Tension is the other property that determines the speed of...

