Gastric Disease Flashcards

1
Q

An older obese man comes in who is a heavy smoker and drinker. He is complaining of a retrosternal burning chest pain which is made worse after eating, lying down, bending over or straining.
He also complains of odynophagia & a cough that won’t go.
What is wrong with him and what do you need to check for?

A

GORD (LOS relaxation more frequent)

🚩 dysphagia, weight loss, early satiety, malaise, loss appetite - malignancy (oesophageal/ gastric)

  • peptic ulcers
  • oesophageal motility disorders
  • oesophagitis
  • coronary artery disease
  • biliary colic
  • Barrett’s
  • strictures
  • aspiration pneumonia
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2
Q

After endoscopy a patient has been told they have reflux oesophagitis with mucosal breaks extending between the tops of 2 mucosal folds but involves less than 75% of the circumference. What grade is this on the LA classification of reflux. What are the other grades?

A

Grace C

A - break(s) <5mm
B - break(s) >5mm
D - break(s) involves 75%+ oesophageal circumference

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3
Q

What investigations are required for GORD?

A

Most patients clinical diagnosis -> trial PPI

If dysphagia or >55yrs with weight loss + upper abdo pain/ dyspepsia/ reflux = urgent endoscopy
Or new symptoms particularly older, worsening despite PPI

  • 24hr PH monitoring (time acid is present oesophagus & correlation w symptoms = DeMeester score) if medical treatment fails and surgery considered + oesophageal manometery to exclude dysmotility
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4
Q

A patient has recently been diagnosed with GORD and has stopped drinking coffee and alcohol but still is suffering what else can you suggest?

A

Other conservative: fatty food, weight loss, smoking cessation, spicy food

PPI (+ lifestyle= first line) life long

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5
Q

When would surgery be an option for GORD? What are the surgeries? What are the side effects?

A
  • failure/ partial response medical therapy
  • patient preference
  • complications e.g. resp recurrent pneumonia/ bronchiectasis

Not with:
Severe oesophagitis
Caution motility disorders

  • fundoplication
    Gastrooesophageal junction & hiatus dissected
    Fundus wrapped around GOJ ->
    Physiological LOS
    (Posterior 360 Nissen’s approach or partial anterior)
    :(( dysphagia, bloating, inability vomit - often settle 6 weeks
  • stretta radio-frequency energy to thicken LOS
  • Linxa magnetic beads inserted around LOS
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6
Q

Immediately after surgery for severe oesophagitis a patient reports: difficulty belching, increases saliva & abdo pain. What is the likely cause of the symptoms?

A

The Nissan fundoplication procedure wrapped fundus around GOJ too tightly

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7
Q

Define a hiatus hernia
How common are they?
What are the risk factors?

A

Protrusion of an organ from the abdo cavity into the thorax through the oesophageal hiatus (wall of cavity that contains it)
Usually the stomach (rarer: SB, colon, Mesentery)

Extremely common, 1/3 >50yrs - majority asymptomatic

RFS:
Older, pregnancy, obesity, ascites

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8
Q

How could you classify hiatus hernias?

A
  • sliding HH (80%)
    GOJ, abdo part of oesophagus & often cardia stomach SLIDE UPWARD through diaphragmatic hiatus -> thorax
  • rolling/ para-oesophageal hernia (20%)
    Upward movement gastric fundus -> lies along GOJ -> bubble of stomach in thorax = true hernia with peritoneal sac

Can also be mixed sliding & rolling

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9
Q

How can you differentiate someone with GORD from someone with a hiatus hernia?
What is a rare but serious presentation of a HH, how would you manage it?
If the patient has bleeding or anaemia what does it suggest?
What other symptoms could you look for and what do they show?

A

HH: Worse when lying flat, treatment won’t work, more severe

Vomiting & weight loss - gastric outflow blocked - early satiety/ vomiting & nutritional failure -> transfer to nearest oesophago- gastric unit

Ulceration of oesophagus

Hiccups or palpitations - sufficient size HH -> irritation to diaphragm or pericardial sac
Dysphagia - oesophageal strictures or rarely incarceration
Bowel sounds in chest - large HH

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10
Q

What are some important differentials for hiatus hernias?

A
  • cardiac chest pain
  • gastric or pancreatic cancer (gastric outlet obstruction, early satiety, weight loss)
  • GORD
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11
Q

What’s the gold standard investigation for suspected hiatus hernias? How else may they be diagnosed? If there are symptoms of gastric outflow obstruction or weight loss what investigations are mandatory?

A
  • oesophagogastroduodenoscopy (OGD) shows upward displacement of GOJ/ the z line
  • diagnosed incidentally on CT/ MR
  • contrast swallow used less commonly
  • urgent Ct thorax + abdomen
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12
Q

A patient diagnosed with a hiatus hernia comes in complaining that the PPIs she’s been given aren’t working and wants surgery. What might you suggest before surgery is done?

A

PPIs first line - check she is taking them in the morning before food or drugs binding site internalised & ineffective
Lifestyle modification: weight loss, low fat/ earlier/ smaller meals, sleeping more pillows, smoking cessation/ reduce alcohol (inhibit LOS function)

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13
Q

What scenarios with a hiatus hernia would you offer surgery? What does surgery involve? How successful is it and what are potential complications?

A
  • remain synyompatic despite max medical therapy
  • increased risk strangulation/ volvulus (rolling/ mixed/ other abdo viscera)
  • nutritional failure

(Suspected obstruction/ strangulation/ stomach volvulus - NG tube decompression prior surgery)

Two aspects:

  • cruroplasty hernia reduced from thorax into abdo & hiatus reapproximated to appropriate size (may require mesh)
  • fundoplication fundus wrapped LOS & stitched

Success rate >90% good Lt outcome

Complications: recurrence, abdo bloating, dysphagia (majority settles), fundal necrosis (emergency major gastric resection)

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14
Q

What is Bourchardt’s triad? What does it suggest?

A

Severe epigastric pain
Retching without vomiting
Inability to pass an NG tube

Suggests: gastric volvulus -> obstruction of gastric passage & tissue necrosis
✅ surgical intervention

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15
Q

What is a peptic ulcer? Where can they form? What presents earlier? How do they present?

A

A break in the lining of the GI tract extending through to the muscular layer (muscularis mucosae)of bowel wall - endoscopic diagnosis

Can form anywhere in tract but most often

  • lesser curvature proximal stomach
  • first part duodenum

Duodenal classically present 20yrs earlier

Presentation:
70% asymptomatic
Epigastric/ retrosternal pain (gastric- worse eating, duodenal 2/3hrs later/ alleviated)
Nausea
Bloating Post-prandial discomfit
Early satiety
Complications: bleeding, perforation, gastric outlet obstruction

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16
Q

How are peptic ulcers caused? What are the risk factors?

A

Imbalance between protective defence mechanisms (surface mucous secretion + HCO3 - ions) & damaging mechanisms

Most often thorough Helicobacter Pylori (duodenal 90%/ gastric 70% -> cytokines & interleukin driven inflammatory response -> H2 -> acid)

OR NSAID use (❌PGs-> reduced glycoproteins/ mucous/ phospholipids)

RFS:
H.Pylori, prolonged NSAIDS, corticosteroids, gastric bypass surgery, physiological stress (severe burns curlings ulcers), head trauma (Cushing’s ulcer),zolinger- Ellison syndrome

17
Q

According to NICE when should a referral for an urgent upper oesophago-gastro-duodenoscopy for suspected peptic ulcers be done? What are the differentials?

A

New onset dysphagia

> 55yrs + weight loss + upper abdo pain/ reflux/ dyspepsia

New onset dyspepsia not responding PPIs

-> biopsies + rapid urease test -> PPI -> repeat endoscopy

DD:
GORD, gallstones, gastric malignancy, pancreatitis

18
Q

What is Zollinger-Ellison syndrome?

A

Triad: severe peptic ulcer disease, gastric acid hypersecretion, gastrinoma

Fasting gastrin >1000 pg/ml

1/3 present as multiple endocrine neoplasia type 1 syndrome (pancreas/ pituitary/ parathyroid tumours)

19
Q

Most patients, especially younger with suspected peptic ulcer disease should undergo non-invasive H.pylori testing, how can this be done?

A

Prior to tests stop current meds 2weeks

  • C-13 urea breath test
  • serum ABs
  • stool antigen test

Positive -> eradication therapy

20
Q

Describe treatment for peptic ulcer disease

A

Conservative:
Smoking cessation, weight loss, reduction alcohol, reduce NSAIDs

Medical:
PPI 4-8weeks -> reassessed -> positive triple therapy (PPI + amoxicillin+ clarythromycin/ metronidazole 7 days)
If fails: urgent OGD

Surgery:
Rare except emergency or ZES
Severe/ relapsing - partial gastrectomy/ selective vagotomy

21
Q

How common are gastric cancers? What type of cancers are they? Risk factors?

A

Fith most common cancer globally
Second highest cancer related death

> 90% adenocarcinomas
CT, lymphoid, neuroendocrine

Risk factors: Male, H.pylori (6X), older, smoking, alcohol, salt, FH, pernicious anaemia, low fibre, chronic gastritis

22
Q

How does gastric cancer normally present? When would you send someone for an urgent OGD?

A

Often vague & non-specific
Often presenting advanced

Dyspepsia
Dysphagia
Early satiety
Vomiting 
Melena 

Epigastric mass

Non-specific cancer:
Anorexia, weight loss, anaemia

Urgent OGD:
New dysphagia
OR >55yrs + weight loss + upper abdo pain/ reflux/ dyspepsia

23
Q

How would you investigate gastric cancer?

A

Any clinical features (haematemesis, melena) - urgent routine bloods (FBC, LFTs)

Primary investigation - urgent upper GI endoscopy + biopsies
Histology, CLO test, HER2/neu protein expression

CT scan can show thickening not visualisation/ biopsy

Staging:
CT chest-abdo-pelvis + staging laparoscopy (TNM)

24
Q

How do you manage gastric cancer?

A

Discussed at a specialist upper GI cancer MDT

Nutritional status assessment - reviewed dietician
Many pre/ post treatment NG tube OR RIG tube

Curative:
Peri-operative chemoT (3 cycles neoadjuvant + 3 adjuvant)
Proximal - total gastrectomy
Distal (antrum/ pylorus) - subtotal gastrectomy
-> Roux-en-Y reconstruction (oesophagus anastomosed SB)

Early T1a - endoscopic mucosal resection (EMR)

Palliative (most):
Chemotherapy 
Stunting 
Surgery (distal gastrectomy or bypass surgery) 
10yr survival 15%
25
Q

Gastrectomy complications

A
Death 3-5%
Anastomotic leak 5-10%
Re-operation
Dumping syndrome 
VB12 deficiency
26
Q

What is Troisier’s sign of malignancy?

A

An enlarged virchow’s node