Common condition of the lower GI tract - relevance to dentistry Flashcards

1
Q

Small bowel physiological function?

A
  • Villi – large surface area
  • Enzymatic digestion
  • Absorption
  • Gut hormone secretion
  • Immune role
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2
Q

Large bowel physiological function?

A
  • storage and elimination of waste
  • fluid and electrolyte (water) reabsorption
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3
Q

Commonest condition of bowel?

A

Colorectal cancer (CRC)

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4
Q

Symptoms of CRC?

A
  • Change in bowel habit
  • Rectal blood loss
  • Abdominal pain
  • Weight loss
  • Co-incidental anaemia
  • Detection at screening
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5
Q

2 pathways to test bowel disorder?

A

Change in bowel habit - bleeding, pain, weight loss
- stool sample

Filters designed for backlog form Covid

Positive result = colonoscopy

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6
Q

QFIT?

A

Stool sample - bowel cancer screening

In adults 50-74 every 2 years

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7
Q

Inflammation and cancer?

A

Inflammation e.g. in mouth can promote oncogenic formation

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8
Q

Stages of CRC?

A

Dukes A-D

Dukes A and B better outcome to treatment

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9
Q

Surgical management of CRC?

A

Dukes A ‘cancer polyps’
- endoscopic resection possible

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10
Q

Cancer polyp?

A

polyp contains abnormal cells or cells that may become abnormal (malignant)

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11
Q

What is the cause of most CRCs?

A

Sporadic with no heridenry influence

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12
Q

Gardeners syndrome and CRC?

A

Multiple osteomas, particularly in mandible (cotton—wool like appearance on x-ray)

  • pt often have many polyps in colon nut can manifest orally

Supplementary teeth

In-erupted teeth

Dental changes often pre-date any intestinal symptoms

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13
Q

Types of Inflammatory bowel disease?

A

Crowns disease

Ulcerated colonitis

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14
Q

Aetiology of IBS?

A
  • Environmental trigger in genetically
    susceptible individuals
  • Genetic component
  • Candidate genes identified (eg
    NOD2)

Triggering factors
- role of bacterial infection, dietary
antigen, vaccination history, social
factors including smoking

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15
Q

What does ulcerated colitis affect?

A

Only colon

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16
Q

What is ulcerated colitis?

A

Continuous mucosal inflammation

17
Q

Symptoms of ulcerated colitis?

A

Blood diarrhoea

Abdominal cramping

Weight loss

Malaise

18
Q

Common site of crohns disease?

A

Large bowel most common

But in any art of gut

19
Q

Symptoms of Crohn’s disease?

A

Abdominal pain

Diarrhoea

Bleeding

Peri-anal symptoms

Weight loss

20
Q

Skin manifestations of inflammatory bowel disease?

A

Pyoderma

Gangrenosum

Erthyema

Nodosum

Vasculitis

21
Q

Who is at highest risk of colon cancer?

A

Inflammatory bowel disease: ulcerative colitis or Crohn’s disease

22
Q

Medical tx for IBD?

A
  • Immunosuppression
  • Corticosteroids for acute exacerbations
  • Thiopurines (azathioprine)
  • Bone marrow suppression; risks of infection

Also new biologics
- Monoclonal antibodies against TNF (anti-TNF) or even integrins (stop binding of neutrophils…)

Vedolizumab
Ustekinumab
Tofacitinib and many other new oral agents

23
Q

If pt is on biologics - what do you need to consider?

A

Need to ensure no dental infection ongoing prior to administration

24
Q

Types of Small bowel disease?

A

Coeliac disease

Small bowel infarctions

25
Features of coeliac disease?
Loss of illi = malabsorption Intolerance to gluten
26
Effect of eating disorders in dentistry?
Severe palatal erosions Occlusal erosion of the maxillary teeth - causing the incisal edges of the incisors to be thin and knife-edged - the occlusal surfaces have a flat to cupped-out appearance - Swollen parotid glands
27
Hereditary Haemorrhagic Telangiectasia (HHT)?
Characteristic peri-oral telangiectasia - small bowel lesion can bleed
28
Peutz-Jeghers Syndrome Clinical appearance in dentistry?
Characteristic mucocutaneous, pigmented macules
29
What can Crohn’s disease manifest orally as?
Mouth ulcers Orofacial Granulomatosis
30
What is shown and what could it show
Angular stomatitis - said to be seen in iron- deficient anaemia Oral manifestation of GI disease
31
Orofacial Granulomatosis?
◼ Inflammatory condition affecting the oral mucosa ◼ Non-caseating granulomas ◼ “Cobblestone” appearance Can be isolated or manifestation of crohn’s
32