Mallory Weiss Tear Flashcards Preview

YR3: Gastro LO's > Mallory Weiss Tear > Flashcards

Flashcards in Mallory Weiss Tear Deck (18)
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1
Q

What is a Mallory Weiss tear?

A

Tearing of the lining of the oesophagus around the junction with the stomach as a result of violent vomiting or straining to vomit.

2
Q

How does a Mallory Weiss tear differ to Boerhaves perforation?

A

MWT: linear mucosal tears at gastrooesophageal junction

Boerhaave’s: transmural perforation of the oesophagus

3
Q

List 7 risk factors for Mallory Weiss tear

A
Chronic alcohol abuse  
Bulimia 
Retching  
Vomitting 
Straining 
Chronic cough  
Hiatal hernia
4
Q

Describe the epidemiology of Mallory Weiss tears

A

Quite rare
3-15% of cases of upper GI bleeding
More common in MEN + women of a child-bearing age

5
Q

How do Mallory Weiss tears usually present?

A

Most cases are ASYMPTOMATIC

6
Q

List 4 symptoms of Mallory Weiss tear

A

Chest/ Abdo pain
Involuntary retching
Black/ tarry stools
Sx of hypovolaemia if SEVERE blood loss (e.g. light-headedness)

7
Q

Give 2 signs of Mallory Weiss tear

A

Severe vomiting

Haematemesis

8
Q

What bloods are taken in patients with Mallory Weiss tears?

A

FBC: to identify anaemia (RARE)
Urea: high if ongoing bleeds
LFTs: should be norm but to exclude liver disease which may predispose to varices (potential sources of bleeding)
PT/ INR: exclude other causes of bleeding
Group + save

9
Q

What is the gold standard investigation used for Mallory Weiss tears?

A

OGD: can see a tear or laceration

10
Q

Describe the management of Mallory Weiss tears in which bleeding does not stop spontaneously

A

Haemoclip placement +/- adrenaline injection
OR
Thermocoag therapy + adrenaline injection
OR
Endoscopic band ligation + adrenaline injection
OR
Endoloop + Haemoclip placement

11
Q

Describe management of Mallory Weiss tears

A

Assess haemodynamic stability (ABC)
Replace fluids +/- blood
Phytomenadione if high INR (Vit K)

12
Q

Describe the nature of bleeding in Mallory Weiss tears

A

In 80-90% cases bleeding will stop spontaneously

13
Q

What drugs may be prescribed pre-endoscopy?

A

Anti-gastric acid
Anti-emetics
Somatostatin analogues (reduce portal venous blood flow)

14
Q

List 4 complications of Mallory Weiss tear

A

Re-bleeding (low)
Adrenaline-related HTN emmergency (low)
Hypovol shock/ death (low)
Boerrhaave’s perforation (low)

15
Q

What is the prognosis for Mallory Weiss tears?

A

Good

16
Q

What procedure may be used if an endoscopic intervention is not available for patients with a Mallory Weiss tear?

A

Sengstaken-Blakemore tube

balloon tamponade

17
Q

What is Boerhavees perforation?

A

spontaneous perforation of the oesophagus

Rare but high mortality

18
Q

List 9 signs and symptoms of a Boerhaaves perforation

A

Sudden-onset chest pain immediately after episode of vomiting.
SOB + pleuritic pain due to subsequent pleurisy + effusion.
Signs of pleural effusion after some hours (dull percussion, absent breath sounds, dec vocal resonance)
Abdominal rigidity
Sweating
Fever
Tachycardia
Hypotension
Pneumomediastinum.