dr anne sneddon director of obstetrics and gynaecology ...€¦ · dr anne sneddon. director of...
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Dr Anne SneddonDirector of Obstetrics and Gynaecology
Lecturer, ANU Medical SchoolThe Canberra Hospital
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Capital city of AustraliaPopulation 350,000 but surrounding region of 500,000Seat of government of AustraliaPerfect place to live and Australias best kept secret
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Third and fourth degree tears are a reflection of quality of maternity servicesRates are difficult to determine due to non-standardised definitions but in general run at about 1-3% of clinically detectable lesionsUltrasound studies point to sphincter disruption in 31% of all vaginal deliveries (Sultan 1994)
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Controversy should still exist about the relevance of 3rd and 4th degree tearsRecent figures from medical indemnity groups in Australia, suggest an increasing trend toward litigation with regard to perineal traumaIncreasingly used as a reason for maternal request for elective caesarean sectionIn many areas the incidence of dysfunction is not known because of non or under-reporting
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Tertiary referral centre with approx. 2800 births per yearAll patients with a clinically recognised 3rd or 4th degree tear are referred Established in 2001Single obstetric specialist Multidisciplinary clinic
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Evidence based clinical guideline developed with multidisciplinary inputAll women placed on a Clinical PathwayRepair performed by senior staff or under supervisionRegional anaesthesia minimumRecommended OT
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Recommended minimal 2/0 Vicryl for sphincter and overlapping repair for 3b, 3c and 4th degree tears. Most now use PDS
Antibiotics: minimal stat dose at repairCourse at repairers discretion
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Aperients from Day 1 (Normacol®, Metamucil®)Oral analgesia and avoidance of rectal medications except topical haemorrhoidalReview by physiotherapists Day 1Referral to OASIS
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Scheduled visits at 2 weeks, 6-8 weeks and 6-12 monthsMulti-layered interactionIndividualised careNo referral necessarySelf referral at anytimeTraining and education of registrars
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First visit is to establish relationship and review initial healing processOne-on-one visit with physiotherapist and review of pelvic floor strength and technique of exerciseReferral to other health professionals if requiredManagement plan established including timing of next visit
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The second visit includes a routine postnatal visit with specific urinary and rectal function reviewRoutine postnatal clinical examination and specific anorectal examinationSpecific physiotherapy intervention included.
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Third visit.Review of symptoms and testing
Clinical history and examinationManometryEndoanal ultrasound
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The fourth visit is to formulate a birth plan which incorporates:
Woman's choice Factors which may preclude a subsequent vaginal birthPreventative factors for vaginal birth
Recommended before next pregnancy
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Women who have a subsequent pregnancy are then seen twice in the next pregnancy
20 weeks to document a birth plan and review of symptomatology
Discussion re minimisation of recurrence
36 weeks to confirm birth plan and review symptomatology
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Cohort of women who are in a subsequent pregnancyThese women have been seen at 6 weeks and are to have anorectal physiology at 6-12 months.
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302 women have been referred To date there have been no medico-legal complaints by women who have attended the clinicRetention rates are
First visit 100%2nd visit 97%3rd visit 82%
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Psychological healthMay be first time out of houseDesensitisingPositive approachReferral for those who may have PNDArea for study most needed
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Increasing referral via GPs from outside TCHGSAHSOther public institutionsPrivate referrals.
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Consistency of approachPositive approachMultidisciplinaryTeachingReviewOpportunity for research
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Operator dependentCould be seen as a threatPhysiotherapist is a bully!
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Multidisciplinary approachCentres of ExcellenceBalance of viewsConsistency of approach
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Suture materialRCOG guideline absorbable suturesImproved results with PDS for sphincter
Overlapping v anastomosisConflicting data but overlapping for complete appears better in our clinicBest data from Fernando et al (n=64) showed decreased pain, and defaecatory function at 12 months NNT=4.
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Gynaecologist v colorectal surgeon1 RCT showed no differenceSome units repaired by colorectal surgeons but have to wait until next morning.
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Conducted by trained personnelOperating theatreGA or regional anaesthesiaCareful exam pre suturing
Anal mucosa best sutured with knots tied in anal canal.Anal muscle repaired with PDS suturesIAS identified and repaired separatelyCareful exam and documentation.
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AntibioticsInadequate data: Cochrane database
Aperients v constipators1 RCT which shows better outcomes with aperients
AnalgesicsNone specific for 3rd/4th degree tearsCombination, regular paracetamol+/- codeine and NSAIDSAvoidance of rectal medication in postnatal phase
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Obstetricians v colorectal surgeonsAnorectal physiologyBirth and other sequelae
PhysiotherapyNo long term studies on intensive PFE and effect on outcomes
Other
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Elective caesarean v vaginal birthOnly definite indication for c/s is secondary repair for symptomatic tears.Current general practice is
If symptomatic elective c/s
Preventative measuresPerineal massageBirth position
Left lateral, 4 pt kneel
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Recurrence rate around 3%Data on relevance is poor
?increase in dysfunction
No evidence that episiotomy is protectiveBest data suggests poorer function
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IncontinenceFlatus incontinence common
Early v symptomatic (later) repairKnowledge based on delayed repair
Role of pelvic floor healthPremenopausal v menopausal
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Get someone interested!Ask the right questionsMake it multidisciplinary!Make it women focusedMake it honestCollect the data
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Every woman knows that having children is a balance of consequences……..
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Further recommended reading:Perineal and Anal Sphincter Trauma
Abdul Sultan, Ranee Thaker, Dee Fenner EditorsSpringer Press