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General Surgery

Endoscopy and Endoscopic Intervention

Built from Maingot's Abdominal Operations

The first 25 slides of Endoscopy and Endoscopic Intervention
The first 25 slides, exactly as they appear. The full deck has 185 content slides.

What’s inside

13 sections · 185 slides

  1. 01

    Overview

    • Scope of flexible endoscopy today
    • Fields covered by interventional endoscopy

    2 slides

  2. 02

    The flexible endoscope

    How the picture is made, and how the instrument is built

    • Image transmission in a fiberoptic endoscope
    • Videoendoscopes and the charge coupled device
    • Aim of the newer imaging methods and chromoendoscopy
    • Lugol's solution and magnification endoscopy
    • Yield of magnification and confocal microendoscopy
    • Narrow band imaging
    • White light and narrow band views of Barrett's esophagus
    • Autofluorescence and light scattering spectroscopy
    • Optical coherence tomography
    • Cross-section of the esophageal wall on optical coherence tomography
    • Wall layers resolved by cross-sectional imaging
    • Image documentation during endoscopy
    • Controls on the endoscope head piece
    • Air, water, suction and the biopsy channel
    • Rotation, torque and loop formation
    • Variable stiffness control on a colonoscope
    • Shape-locking device and self-propelled colonoscopes
    • Endoscopic training for surgical residents

    18 slides

  3. 03

    Patient assessment, sedation and monitoring

    Making the procedure safe before the scope goes in

    • Preprocedural patient assessment
    • Patients needing extra vigilance, and how they are monitored
    • Limits of pulse oximetry and the role of capnography
    • Sedation agents, reversal and titration
    • Cardiopulmonary complications of endoscopic sedation

    5 slides

  4. 04

    Upper gastrointestinal endoscopy

    Indications, preparation, technique and tissue sampling

    • Diagnostic and therapeutic roles of upper endoscopy
    • Alarm symptoms that call for upper endoscopy
    • The nine alarm symptoms in full
    • Contraindications to upper endoscopy
    • Coagulopathy and suspected perforation
    • Preparation before upper endoscopy
    • Antibiotic prophylaxis and choice of scope
    • Intubation of the cervical esophagus
    • Route of the endoscope during upper endoscopy
    • Landmarks recorded in the esophagus
    • Surveying the stomach
    • Entering the duodenum and the short position
    • Retroflexion in the stomach
    • Retroflex view of a large paraesophageal hernia
    • Retroflex view of an intact fundoplication
    • Forceps biopsy and surveillance protocols
    • Brush cytology

    17 slides

  5. 05

    Endoscopic control of gastrointestinal bleeding

    Thermal and non-thermal ways to shut a bleeding point

    • Role of endoscopy in upper gastrointestinal bleeding
    • Categories of endoscopic haemostatic therapy
    • Choosing a haemostatic technique
    • Success and risk of thermal haemostasis
    • Contact thermal techniques
    • Bipolar endoscopic cautery device
    • Argon plasma coagulation
    • Gastric antral vascular ectasia treated by argon plasma coagulation
    • Injection sclerotherapy
    • Agents used for injection therapy
    • Endoscopic treatment of esophageal varices
    • Endoscopic band and loop ligation
    • Endoscopic clips placed for haemostasis

    13 slides

  6. 06

    Endoscopic mucosal resection and ablation

    Removing and destroying early lesions without an operation

    • Scope of endoscopic mucosal resection
    • Steps of saline lift mucosal resection
    • Saline lift mucosal resection
    • Sessile colon polyp before mucosal resection
    • Sessile colon polyp after submucosal injection
    • Polypectomy site after saline lift resection
    • Cap-assisted and band-assisted resection
    • Complications of endoscopic mucosal resection
    • Endoscopic submucosal dissection
    • Endoscopic mucosal ablation
    • The HALO 90 radiofrequency ablation device

    11 slides

  7. 07

    Endoscopic enteral access

    Feeding and decompression tubes placed with a scope

    • Indications for endoscopic enteral access
    • Contraindications to endoscopic enteral access
    • Percutaneous endoscopic gastrostomy
    • Preparation and positioning for gastrostomy
    • Choosing the puncture site and confirming a safe tract
    • Pull and push gastrostomy techniques
    • Internal bumper checked at second endoscopy
    • Introducer and assisted gastrostomy techniques
    • Gastrostomy with jejunal extension
    • Aspiration and the limits of tube feeding
    • Direct percutaneous endoscopic jejunostomy

    11 slides

  8. 08

    Foreign bodies, dilation and enteral stents

    Clearing, stretching and propping open the gut lumen

    • Who swallows foreign bodies
    • Urgency and airway protection
    • Removing coins and food boluses
    • Sharp objects, batteries and drug packets
    • Assessment after foreign body removal
    • Eosinophilic esophagitis found after food bolus impaction
    • Migrated sutures at a previous gastrojejunostomy
    • Endoscopic dilation of strictures
    • Dilator types and how far to go in one session
    • Balloon dilation and waist ablation
    • Enteral stents and their delivery systems
    • Reach of the different stent delivery systems
    • Covered and uncovered enteral stents
    • Uncovered enteral stents

    14 slides

  9. 09

    Endoluminal treatment of gastroesophageal reflux

    A generation of devices, and what became of them

    • Overview of endoluminal antireflux devices
    • EndoCinch and Stretta
    • The NDO Plicator
    • Enteryx polymer implantation and its withdrawal
    • Gatekeeper and EsophyX

    5 slides

  10. 10

    Endoscopic retrograde cholangiopancreatography

    Reaching the bile and pancreatic ducts through the duodenum

    • Origins of ERCP
    • Why ERCP is reserved for treatment
    • Indications for endoscopic retrograde cholangiopancreatography
    • Biliary indications for ERCP
    • Pancreatic and ductal injury indications for ERCP
    • Preparation and passage of the side-viewing duodenoscope
    • Reaching the short-scope position and the papilla
    • Cannulating the bile and pancreatic ducts
    • Two types of sphincterotomy
    • Impacted common bile duct stone at the ampulla
    • Sphincterotomy with a pull-wire sphincterotome
    • Major papilla after sphincterotomy
    • Clearing common bile duct stones
    • Common bile duct stone on cholangiogram
    • Extracted bile duct stone lying in the duodenum
    • Preoperative ERCP and sphincter of Oddi dysfunction
    • Manometry, cholangitis and gallstone pancreatitis
    • Indications for biliary and pancreatic endoprostheses
    • Contrast leaking from an accessory bile duct
    • Bile leak resolved after six weeks of stenting
    • Transpapillary biliary stent for a duct leak
    • Placing and sizing a biliary endoprosthesis
    • Choosing between plastic and metal biliary stents
    • Distal bile duct stricture from a pancreatic head cancer
    • Pancreatic duct stenting
    • Guide wire in the pancreatic duct before stenting
    • Temporary plastic pancreatic stent in place
    • Pancreatic duct stones and pseudocyst drainage
    • Transvisceral drainage and endoscopic necrosectomy
    • Post-ERCP pancreatitis
    • Infection and bleeding after ERCP
    • Perforation during and after ERCP
    • Managing perforation from ERCP manipulation

    33 slides

  11. 11

    Small bowel enteroscopy

    Reaching the part of the gut that was out of reach

    • Capsule endoscopy
    • Older approaches to the small bowel
    • Balloon-assisted deep enteroscopy
    • Practicalities of balloon enteroscopy

    4 slides

  12. 12

    Lower gastrointestinal endoscopy

    Colonoscopy from insertion to polypectomy and stenting

    • Origins and screening role of colonoscopy
    • Diagnostic and therapeutic indications for colonoscopy
    • Diagnostic indications for colonoscopy
    • Therapeutic indications for colonoscopy
    • Contraindications to colonoscopy
    • Bowel preparation and drug precautions
    • Principles of colonoscope handling
    • Stapled anastomosis at the rectosigmoid level
    • Starting the colonoscopy
    • Advancing through the rectum and sigmoid colon
    • Multiple diverticula in the sigmoid colon
    • Loop reduction, splenic flexure and transverse colon
    • Hepatic flexure, ascending colon and terminal ileum
    • Cecal landmarks confirming a complete examination
    • Lipomatous appearance of the ileocecal valve
    • Withdrawal and inspection
    • Retroflexed view of the rectal vault and dentate line
    • Bleeding and perforation after colonoscopy
    • Sites of perforation and postpolypectomy syndrome
    • Polypectomy of small and pedunculated polyps
    • Small pedunculated polyp suitable for snare polypectomy
    • Sessile polyps and mucosal resection in the colon
    • Polyp retrieval, tattooing and surveillance intervals
    • Lower gastrointestinal bleeding: sources and preparation
    • Timing, diverticular bleeding and angiodysplasia
    • Colonoscopic decompression in pseudo-obstruction
    • Technique and limits of colonoscopic decompression
    • Colonic stenting
    • Placing a stent across an obstructing colon lesion
    • Obstructing sigmoid colon cancer before stenting
    • Guide wire passed across an obstructing lesion
    • Relief of obstruction after colonic stent deployment

    32 slides

  13. 13

    Endoscopic ultrasound and future developments

    Seeing through the wall, and operating without a scar

    • Role of endoscopic ultrasound
    • Endoscopic ultrasound in pancreatic, hepatobiliary and mediastinal disease
    • Endoscopic ultrasound in luminal and retroperitoneal disease
    • What endoscopic ultrasound is used for
    • Technique of endoscopic ultrasound
    • Natural orifice translumenal endoscopic surgery
    • Limitations and the tools that answer them
    • Takeaways: the instrument and the image
    • Takeaways: intervention and its risks
    • References
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    • Maingot's Abdominal Operations, 12th Edition

    20 slides