Gastro Presentations Flashcards
Abdominal distention
Coeliac disease IBS Volvulus Hepatocellular carcinoma Portal hypertension Ascites Intestinal ischaemia Intestinal obstruction
Abdominal mass
Anal/PR
- Colorectal cancer
- Perianal abscess/fistulae
Epigastric/RUQ
- Cholangiocarcinoma
- Pancreatic cancer
- Gastric cancer
Other
- Appendicitis
- Femoral hernias
- Intestinal ischaemia
- Intestinal obstrution
Common differentials for acute abdomen
Adhesions Incarcerated/strangulated hernia Cholecystitis Perforated gastric ulcer Appendicitis Ectopic pregnancy Pelvic inflammatory disease Acute pancreatitis Acute diverticulitis Ulcerative colitis Crohn's disease Cholelithiasis Gastrointestinal malignancy Mallory-Weiss tear Diabetic ketoacidosis Opioid withdrawal Hepatitis Gastroenteritis Infectious colitis Sickle cell crisis Endometriosis Testicular torsion Kidney stones Pyelonephritis
Common differentials for ascites
Hepatitis C Alcoholic liver disease Congestive heart failure Nephrotic syndrome Pancreatitis
How does colonic bleeding typically present?
Bright red or dark red blood per rectum
Rarely meleaena
What does colonic bleeding rarely present as melaena?
Blood in the colon has a powerful laxative effect and is rarely retained long enough for transformation to occur
How can you generally differentiate between right-sided bleeds and left sided?
Darker coloured - right-sided
What are the presenting features of colitis?
Bleeding may be brisk in advanced cases, diarrhoea is commonly present. Abdominal x-ray may show featureless colon.
What are the presenting features of diverticular disease?
Acute diverticulitis often is not complicated by major bleeding and diverticular bleeds often occur sporadically.
75% all will cease spontaneously within 24-48 hours. Bleeding is often dark and of large volume.
What are the presenting features of colonic cancer?
Bleeding may be first sign of disease
What are the presenting features of hemorrhoidal bleeding?
Typically bright red bleeding occurring post defecation.
Although patients may give graphic descriptions bleeding of sufficient volume to cause haemodynamic compromise is rare.
What are the indications for surgery for a lower GI bleed?
Patients > 60 years
Continued bleeding despite endoscopic intervention
Recurrent bleeding
Known cardiovascular disease with poor response to hypotension
What is the surgical intervention for GI bleeds?
Selective mesenteric embolisation
What are the clinical features of an upper GI bleed?
Haematemsis (most common)
Melena
Raised urea
What are the presenting features of oesophageal varicies?
Usually a large volume of fresh blood.
Swallowed blood may cause melena.
Often associated with haemodynamic compromise.
May stop spontaneously but re-bleeds are common until appropriately managed.
What are the presenting features of oesophagitis?
Small volume of fresh blood, often streaking vomit. Malena rare.
Often ceases spontaneously.
Usually history of antecedent GORD type symptoms.
What are the presenting features of a Mallory-Weiss tear?
Typically brisk small to moderate volume of bright red blood following a bout of repeated vomiting. Malena rare. Usually ceases spontaneously.
What are the oesophageal causes of GI bleeds?
Oesophageal varicies
Oesophagitis
Cancer
Mallory Weiss Tear
What are the gastric causes of GI bleeds?
Gastric ulcer
Gastric cancer
Dieulafoy lesion
Diffuse erosive gastritis
What are the presenting features of gastric ulcers?
Small low volume bleeds are more common so would tend to present as iron deficiency anaemia.
Erosion into a significant vessel may produce considerable haemorrhage and haematemesis.
What are the presenting features of gastric cancer?
Frank haematemesis or altered blood mixed with vomit
Prodromal features of dyspepsia and may have constitutional symptoms
What is a dieulafoy lesion?
An arteriovenous malformation typically found in the stomach
Presents with haematemesis and melena
What are the presenting features of diffuse erosive gastritis?
Usually haematemesis and epigastric discomfort. Usually there is an underlying cause such as recent NSAID usage.
Large volume haemorrhage may occur with considerable haemodynamic compromise
What are the duodenal causes of GI bleeds?
Duodenal Ulcer
Aorto-enteric fistula
Where are duodenal ulcers found? Why does this cause bleeding?
Posteriorly sited and may erode the gastroduodenal artery
What are the presenting features of duodenal ulcers?
haematemesis, melena and epigastric discomfort
pain occurs several hours after eating
What is an aorto-enteric fistula?
In patients with previous abdominal aortic aneurysm surgery aorto-enteric fistulation remains a rare but important cause of major haemorrhage associated with high mortality.
How can you risk assess upper GI bleeding?
use the Blatchford score at first assessment, and
the full Rockall score after endoscopy
What is taken into account in the Blatchford score?
Urea ‘protein’
Haemoglobin low
BP low
Pulse high
How are GI bleeds managed?
Wide-bore IV access
Platelet transfusion if actively bleeding
FFP if low fibrinogen or high PT/APTT
Endoscopy after resuscitation (within 24 hours)