1 (E): Acute Abdomen, GI Bleeding Flashcards
Define acute abdomen
Surgical emergency characterised by acute-onset abdominal pain and tenderness
Describe visceral pain
Diffuse pain - hard to localise
Describe parietal pain
More intense pain
Easier to localise
What are 3 differentials for epigastric pain
- Peptic Ulcer
- ACS
3.
What are 2 differentials for left hypogastric pain
- Splenic rupture
2. Pneumonia
What are 6 differentials for left hypogastric pain
- Biliary Colic
- Acute cholecystitis
- Ascending cholangitis
- Hepatitis
- Liver abscess
- Pneumonia
What are 2 differentials for right lumbar pain
- Renal Colic
2. Pyelonephritis
What are 2 differentials for left lumbar pain
- Renal Colic
2. Pyelonephritis
What are 2 gender-independent cause of right iliac fossa pain
- Appendicitis
2. Inguinal hernia strangulation
What are 3 causes of RIF pain in a female
- Ecoptic
- Ovarian torsion
- PID
What is a cause of RIF in a male
Testicular Torsion
What are 3 causes of umbilical pain
- Acute mesenteric ischaemia
- Ruptured AAA
- Intestina obstruction
What are 2 causes of supra-pubic pain
- UTI
2. Retention
What is a gender-independent differential for LIF pain
Diverticulitis
Give 3 causes of LIF pain in females
- Ecoptic
- Ovarian torsion
- PID
Give a differential for LIF pain in a male
Testicular torsion
What does initial assessment of acute abdomen involve
A-E approach
What is the most common cause of upper GI bleeding
Peptic ulcer (50-70%)
What are 5 causes of upper GI bleeding
Oeseophagitis Gastroduodenal erosion Malignancy Mallory-Weiss tear Oesophageal Varices AV malformation
What is an AV malformation causing upper GI bleeding called
Dieulafoy lesion
What are 3 risk factors for upper GI bleeds
NSAID
Corticosteroids
H.pylori
How does GI bleeds present
Haematemesis
Melena
Iron-deficiency anaemia
Acute:
- Tachycardia
- Hypotension = dizziness, LOC
- Cold peripheries
How does bleeding from peptic ulcer present
- Small amounts of bleeding
- Usually presents as iron-deficiency anaemia
When may a peptic ulcer cause massive haemorrhage
Posterior duodenal ulcer extends into gasproduodenal.a - present as massive haemorrhage and haematemesis
How will diffuse erosive gastritis present
Haematemesis and epigastric discomfort
What is diffuse gastric erosions
ulcer that extends through stomach wall
How may oeseophagitis present
Small volumes fresh blood streaked in vomit. Background of GORD
How do mallory-weiss tears present clinically
Fresh blood on repeated vomiting. Typical history starts as vomits with no blood and then contains blood
How do oesophageal varices present clinically
Large volumes of blood (teaspoons) haematemesis. Meleana
Haemodynamically compromised
How will upper GI malignancies present
haematemesis
What score is used prior to endoscopy to predict patients risk of requiring intervention
Glasgow-Blatchford score
: pre-endoscopy score used to predict patient’s need of intervention
If individual has a glasgow blatchford of 0 what does it mean
Consider early discharge
what is rockall score and what does it predict
Based on pre and post-endoscopy findings. It is used to predict an individuals risk of re-bleeding and death
How are individuals with GI-bleed categorised
- Acute severe
- High-risk stable
- Low risk
What are the 4-features of acute severe GI bleed
- HR >100
- BP <100
- Haematemesis
- Co-morbidities
What are three steps in management for acute-severe GI bleed
- Resuscitate
- Inform GI Team
- Immediate endoscopy
What are the 3 features of high-risk stable GI bleed
- HR >100
- Postural Hypotension
- Co-morbidities
How should a high risk stable GI bleed be managed
- Resuscitate
- Inform GI team
- Endoscopy in 12h
What are the 3 features of a low risk GI bleed
- <60
- Coffee ground vomiting
- CVS stable
What is the management of low risk GI bleed
Add to routine endoscopy
How soon should endoscopy be requested in the following
a. Acute severe
b. High-risk
c. Low-risk
a. Immediate
b. 12h
c. Routinely
How should low-risk GI bleeds be managed
Oral Fluids
Observe for evidence re-bleed
PPI
Routine endoscopy
What is the initial management of someone with high-risk bleed
- A-E
- IV Access: G&S, Cross-match
- Resuscitation fluids
- Platelet transfusion if <50
- FFP if fibrinogen <1 or PTT > 1.5
- Immediate OGD
What is a mallory weiss tear
tear in oesophageal mucosa - often causing shearing of submucosal blood vessels
What causes a mallory weiss tear
increase in oeseophageal luminal pressure: vomiting caused by alcoholism or bulimia
How will mallory weiss tear present clinically
repeated vomiting, followed by an episode of Haematemesis which is usually self-limiting
How is a mallory weiss tear investigated
OGD
How is a mallory weiss tear managed
Conservatively
What are oesophageal varices
dilation of porto-systemic veins secondary to portal HTN
What causes oesophageal varices
portal HTN- often secondary to liver cirrhosis form alcoholic liver disease
How will variceal haemorrhage present
teaspoons of blood
Explain emergency management of oesophageal varices
- A-E
- Insert two IV large-bore cannulas, G+S, Cross-match
- Fluid resuscitation
- Terlipressin
- Prophylactic antibiotics (in cirrhosis patients)
- OGD and immediate endoscopic variceal band ligation
If large haemorrhage and EVBL is not an option:
- Sengstaken-Blakemore tube
- If both fail, transjugular intrahepatic porto-systemic shunt (TIPSS)
What tube is used for large haemorrhage in oesophageal varices
Sengstaken-Blakemore Tube
What is used for prophylaxis of oesophageal varices
Propanolol
Endoscopic Variceal Band Ligtation
What are are lower GI haemorrhages also referred to as
Rectal Bleeding
What are 6 causes of rectal bleeding
- Colorectal Cancer
- IBD
- Haemorrhoids
- Fissure in-ano
- Gastroenteritis
- Diverituclosis
What does haematochezia indicate
Rectum or Colon
What does dark red blood indicate
Proximal source
What does Melena indicate
Upper GI Bleed
How may an anal fissure present
- Small amounts of bright red blood following defecation
- Painful defecation
How may haemorrhoids present
- Bright red blood on wiping
- History of straining
- May be pain on wiping
What exam may be performed for rectal bleeding
Rectal Exam
What 5 blood tests are ordered for rectal bleeding
- FBC
- LFT
- Group and Save, Cross-Match
- U+E
- Coagulation studies
What is important about U+Es
High urea (30:1) - indicate upper GI Bleed
What imaging may be performed
Sigmoidoscopy - Colonoscopy
CT
Explain management of person with rectal bleed
- A-E
- Two large-bore IV cannulas
- Fluid resuscitation
Majority settle - then investigate outpatient
If patient unstable may need injection adrenaline.