New to Meducation?
Sign up
Already signed up? Log In
view moderators

Gastroenterology

Category

Preview
3
129

Clinical Consequences of Liver Disease

Vitamins A, D, E and K are all stored in the liver, as is vitamin B12. Therefore, in liver damage, you can’t store as many of these as you would like to.   Portal circulation Note that there are no valves in the portal circulation. The portal supply is 70% of the blood that the liver receives. The other 30% is supplied by the hepatic artery.   The four main veins that contribute to the portal system are: Splenic vein Superior mesenteric  
almostadoctor.com - free medical student revision notes
over 6 years ago
Preview
3
126

Alcoholic Hepatitis

This is a very common cause of liver injury. It is caused by excessive alcohol intake. Typically there will be steatosis of the liver. In this pathological change, fat globules begin to accumulate in the cytoplasm of liver cells. this can be pretty harmless, and as a result, is not very specific for predicting if the liver will develop cirrhosis.  
almostadoctor.com - free medical student revision notes
over 6 years ago
Preview
1
17

Faecal Incontinence

Faecal incontinence Occurs in 15% aged >65Y, increasing incidence with age in men only. Causes include: Sphincter weakness (following childbirth/surgery); Anal/rectal pathology e.g. fistulae, Crohn’s, proctitis;  
almostadoctor.com - free medical student revision notes
over 6 years ago
Preview
2
27

Coeliac Disease

 
almostadoctor.com - free medical student revision notes
over 6 years ago
Preview
1
66

Diarrhoea

Diarrhoea is defined as the passage of a lose liquid stool. Urgency, which often accompanies diarrhoea, is the sensation of the need to defecate without delay! Urgency can be caused by a large volume liquid stool (where the rectum becomes overwhelmed) or it can also be cuased by rectal irritation. Frequency purely refers to the number of stools passed, and is not necessarily related to diarrhoea or urgency.   Important factors  
almostadoctor.com - free medical student revision notes
over 6 years ago
Preview
2
48

IBD - Inflammatory Bowel Disease

 
almostadoctor.com - free medical student revision notes
over 6 years ago
Preview
4
56

Basic Gastric Physiology

There are basically two regions in the stomach, which contain two different lots of cells, which have different functions: Oxyntic glandular area – this contains oxyntic (parietal cells) that secrete gastric juice and intrinsic factor, as well as chief (peptic cells) that secrete pepsinogen Antral (lower) region – this contains G cells that secrete gastrin. G cells are also found in the duodenum.  
almostadoctor.com - free medical student revision notes
over 6 years ago
Preview
5
98

Peptic Ulcer Disease

 
almostadoctor.com - free medical student revision notes
over 6 years ago
Preview
1
7

Barrett's Oesophagus

 
almostadoctor.com - free medical student revision notes
over 6 years ago
Preview
2
32

Dysphagia

 
almostadoctor.com - free medical student revision notes
over 6 years ago
Preview
1
15

Intussusception

This is a condition where-by one piece of bowel will ‘telescope’ inside another piece, resulting in obstruction, and sometimes ischaemia. Usually it is a piece of proximal bowel passing inside a more distal piece Most commonly, the distal ileum passing through the ielocaecal valve into the colon Requires urgent treatment   Epidemiology and aetiology Usually occurs between 3 months and 3 years  
almostadoctor.com - free medical student revision notes
over 6 years ago
Preview
1
5

Pyloric Stenosis

 
almostadoctor.com - free medical student revision notes
over 6 years ago
Preview
1
28

Physiological Changes of the Heart at Birth

Fetal circulation The fetus receives blood via the umbilical vein. Once this enters the body, it travels through the liver as the ductus venosus before joining the inferior vena cava. It allows 80% of fetal blood to bypass the liver on return from the placenta. It closes functionally within minutes of birth, and structurally within a couple of weeks (may take longer in pre-term babies) Becomes the ligamentus venosum  
almostadoctor.com - free medical student revision notes
over 6 years ago
Preview
1
18

Giardiasis

Organism Giardia lamblia Flagellate protozoan – lives in duodenum or jejunum. Incubation= 7days-3months   Transmission Faecal-oral/ from pets or birds (humans are main reservoir of infection)   Typically from drinking water contaminated with giardia cysts (killed by boiling but NOT chlorination)   Epidemiology Prevalence approx. 20-30% in developing countries  
almostadoctor.com - free medical student revision notes
over 6 years ago
Appendicitis
0
31

Boxmedicine: Appendicitis

Appendicitis is one of the most common surgical emergencies. In this tutorial, Danny takes you through the salient clinical aspects, including history-taking, eponymous signs on clinical examination, choices of imaging, and how we decide on whether a patient has an open or laparoscopic appendicectomy.  
boxmedicine.com
over 6 years ago
Preview
1
31

Immunotherapy Patch for Crohn's Disease?

Immunotherapy through the skin might have applications beyond food allergies, with research getting underway for treatment of Crohn's disease.  
medpagetoday.com
over 6 years ago
Preview
4
110

Gastro Intestinal Fistula

A consise slideshow with high level key points to remember.  
SlideShare
over 6 years ago
Preview
2
5

High output gastrointestinal fistula definition and management

High output gastrointestinal fistula definition, classification, diagnosis and management.  
SlideShare
over 6 years ago
Preview
4
23

Characteristics of Missed or Interval Colorectal Cancer and Patient Survival...

Dr. N. Jewel Samadder discusses his manuscript "Characteristics of Missed or Interval Colorectal Cancer and Patient Survival: A Population-Based Study."  
YouTube
over 6 years ago
Preview
4
149

Gastroenterology Case Scenario - 1

Gastroenterology Case Scenario.  
SlideShare
over 6 years ago