colposcopy - Bon Secours Hospital

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Colposcopy

High Grade Intraepithelial Lesions

HSIL

28.1.2012

Dr Barbara Kerkhoff

Consultant Gynaecologist & Obstetrician

Bon Secours GP Study Day

High Grade Intraepithelial Lesion

• Preinvasive lesion

• Prevalence: 0.45% (USA)

• 70 – 75% HSIL  CIN 2/3

• 1 – 2% HSIL  Invasive cancer

28.1.2012

Bon Secours GP Study Day

Treatment option

1 Excisional Techniques

1 LLETZ/ LEEP

2 Laser/ Knife cone biopsy

2 Local destructive Techniques

1 Laser Vaporisation

2 Cryotherapy

3 Diathermy

4 Cold Coagulation

3 Wedge biopsy (Pregnancy)

4 Hysterectomy

28.1.2012

Bon Secours GP Study Day

Success of LLETZ

1. Low risk

< 50yrs, complete excision

2. Medium risk

< 50yrs, incomplete excision

> 50yrs, complete excision

3. High risk

> 50yrs, incomplete excision

Free of disease 5 yrs

92%

86%

58%

28.1.2012

Bon Secours GP Study Day

Causes of treatment failure

Those women most likely to have persistent disease

• Large volume disease

• High grade disease

• Incomplete excision

• Immunosuppressed women

28.1.2012

Bon Secours GP Study Day

Treatment failure

For every 1000 women treated for CIN:

- 4 will develop invasive cancer

- 5.8% for women treatment for CIN 3

28.1.2012

Bon Secours GP Study Day

Why test for HPV?

• High-Risk HPV DNA testing is more sensitive in detecting high grade disease than smear test.

1

• A positive high-risk HPV result is an objective risk indicator for the development of highgrade disease and cancer.

2

1

.

Clavel et al Brit J Cancer 2001;89;1616-1623

2. Lorenz A, Arch Pathol Lab med 2006;127;959-968

28.1.2012

Bon Secours GP Study Day

Test of cure?

Post Tx

CIN 2/3

3 month

6 month

12 month

24 month

Sensitivity

HPV

93%

90%

90%

93%

Sensitivity

Smear

58%

62%

72%

93%

Specificity

HPV

86%

92%

96%

99%

Double negative (Smear and HPV DNA) over 2 years  CURE!

Nobbenhuis et all, Brit.J. Cancer 2001;84:796-801

28.1.2012

Bon Secours GP Study Day

Specificity

Smear

91%

91%

95%

96%

Follow up guidelines

CIN or CGIN

Negative cytology or HPV r/v 6 month cytology and

HPV

Positive cytology or HPV

LLETZ or ablation

YES

Invasion

Cytopath or

MDT

Negative cytology or

HPV

2. r/v in 18 month d/c to routine

Positive cytology or

HPV

Repeat colposcopy

+/- bx

Repeat tx if required no

Bon Secours GP Study Day

Cytological surveillance annual smears for

10 years

Core Messages to Patients

• HPV is an infection, not a disease

• HPV is not a marker for sexual behaviors, infidelity or timing of infection

• HPV is very common

• HPV is usually cleared by the immune system

(90%)

• HPV does not require tx in absence of CIN

28.1.2012

Bon Secours GP Study Day

Cervical cancer should be considered a very rare complication of a very common virus.

Thank you!

Dr Barbara Kerkhoff

Consultant Gynaecologist

Bon Secours GP Study Day 28.1.2012

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