Saturday, October 09, 2021

Perinatal Mental Health -- Random Facts

This blogpost is a compilation of random facts about peripartum mental health which is one of an important aspect of women care. As a health care provider it is pertinent to provide optimum care for the mental health of the woman. Mental health disorders are prevalent and a woman is vulnerable during pregnancy and in the post part period. According to MBRRACE Suicide is now considered a direct cause of maternal death. 

This post should be used as an adjunct to your study material for this topic as only random facts are given here.

I hope this is helpful for you all.

Thanks 


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Psychiatric Disorders

  • Common up to 20%
  • 3-5% severely affected
  • 2015 MBRRACE almost quarter of deaths due to this in 6wks - 1year postpartum
  • Psychotic disorders more common than another time in a woman’s life
  • Peak onset <7days
  • Highest rate of adverse consequences of antenatal exposure  Sodium Valproate
  • Postpartum psychosis most commonly associated with bipolar affective disorder
  • Approximate risk of developing postnatal depression with h/o depression + 1st degree family member with h/o postnatal depression 40%

The most common mental problems during pregnancy 

  • Depression 12% Anxiety 13% 
  • Both also affect 15-20% woman in the first year after birth

Psychiatric Assessment vital screening tool

Risks short term or long term


Red Flags Symptoms

  • Rapid alteration in mental status
  • New symptoms Psychotic symptoms
  • Thoughts of violent self harm New ideas
  • Guilt Hopelessness
  • Acts of violent self harm
  • Not eating well Insomnia
  • Psychomotor retardation

Suicide risk found trigger urgent assessment

  • Local safe-guarding + infant protection issues


Screening Tools

  • Wholly questions
  • Edinburgh depression scale most frequently used
    • Sensitivity 34-100% Specificity 44-100% PPV 57% NPV 99%
  • PHQ-9 Patient Health Questionnaire 0-3
  • GAD-2 & 7 Anxiety Screening tools
    • Cut off scores — Mild 5 Moderate 10 Severe 15 
  • GAD -7 Sensitivity 89% Specificity 82%
    • Moderately effective for panic disorders, social anxiety disorders, post traumatic stress disorders


Indications for Referral

  • Current illness with symptoms of psychosis, severe anxiety, severe depression, sociality, self-neglect, harm to others or significant interference with daily functioning
  • H/o bipolar disorder / Schizophrenia
  • Hi/o serious postpartum mental illness like puerperal psychosis

Referral considered

  • Illness of moderate severity
  • Current illness of moderate or mild with h/o first degree relative with bipolar or puerperal psychosis 
  • Information should be shared with primary health care, any evidence of mood disturbance— antenatal and postnatal screening 
  • Communication is key


Perinatal Depression 

  • Very common 11% in pregnancy
  • Up To 13% first 3 months
  • 30% affected have depression beyond first year
  • Risk of relapse Up To 40% 
  • Women commonly discontinue medication 
  • Pregnancy is not protective
  • Half of women suffering from postnatal depression develop their symptoms before or during pregnancy
  • Domestic violence increases the risk
  • Symptoms same as outside pregnancy
  • Untreated antenatal depression significantly increases risk of subsequent postnatal depression

Risk factors for Antenatal Depression

  1. Previous history of psychiatric disorders  
  2. Previous h/o postnatal depression
  3. Family history
  4. Chronic illness
  5. Childhood abuse
  6. Substance misuse
  7. Young age
  8. Domestic violence 
  9. Unplanned pregnancy
  10. Single motherhood
  11. Preterm birth
  12. Low birth weight


Postnatal Depression

  • 10-15 per 100 women after childbirth
  • 3% deliveries affected severely
  • Gradual onset in first 2 weeks 
  • Peak presentations 2-4 wks and 10-14 wks
  • H/o major depression + family history of postnatal depression more likely to develop
  • H/o postnatal episodes in first-degree relative important predictive risk factor
  • Greatest risk with family history is in first 6-8 weeks
  • Risk of recurrence 1:2 - 1:3

Treatment

Mild —Referral to local psychology services IAPT (Improving access to psychological therapies) or

  • Primary care mental health services offered
  • Course lasts 9-12 weeks 6-8 sessions

Moderate —High intensity psychological intervention Pharmacological or Both

Severe —Switching antidepressants Augmenting, Electroconvulsive therapy


Postnatal Blues

  • Very common 50-80% 
  • Occurs in 3-10 days Lasts 48 hours Peaking day 5
  • Symptoms mild, self-limiting
  • Requires reassurance and monitoring


Anxiety Disorders

Mild-Moderate 

  • Self help
  • CBT recommended as first line for PTSD

Moderate to Severe 

  • High intensity psychological intervention, pharmacological or combination

Severe Episode 

  • Switching antidepressants or augmenting with anti depressants 
  • Anti-psychotics + short-term t/m with benzodiazepines 
  • Severe OCD admitted in MBU for inpatient t/m 

Tochophobia 

  • Book for consultant-led care 
  • Trusting relationship
  • Develop plan of care , women to be part of decision making process


Psychotic disorders

  • 20-30% with bipolar will develop postpartum psychosis
  • All with h/o psychotic disorders should be under care of a psychiatric team — Perinatal mental health team
  • Preconception counselling, discussion about medications

Birth planning meeting at 32 weeks with aim for late-pregnancy care planning

  • Identify triggers
  • Alert physicians to early warning signs
  • Strategies to reduce relapse risk
  • Use of psychological therapy and medications during labour / postnatal period
  • Involve patent and family
  • Plan of assessment / monitoring
  • Consider admission to MBU as prophylaxis
  • Discuss referral to child and family social care services


Bipolar Disorder

  • Affects approx. 1% of population
  • Mean age of onset b/w 17-22 yrs
  • Characterised by episodes of low mood and mania
  • High risk of postpartum psychosis 25-50% deliveries (same with schizophrenia)

Treatment — Relapse prevention, pharmacological, CBT


Postpartum Psychosis

  • 1-2 per 1000 deliveries
  • More with family history and bipolar (74% chance when both)

Onset is early 50% by day 7 75% by day 16 95% by day 90

Psychiatric emergency,

  • women require assessment by trained psychiatrist
  • Up to 78% have delusional ideas about infant
  • Admission to MBU Medication ECT

Risk of recurrence up to 50% or 1 in every 2 women

  • 35-65% who suffer from one episode will develop bipolar disorder
  • Mood stabilisers are recommended for long term t/m


Suicide 

  • Highest risk time pregnancy & 12 wks postpartum
  • Risk with puerperal psychosis 2 per 100
  • Leading cause of maternal death
  • More violent methods used HANGING
  • Confidential enquiry into maternal deaths 
    • 2/3 had previous psychiatric history
    • 1/3 had bipolar (history identified only in < 1/2 )


Anorexia 

  • Has the highest mortality of all psychiatric conditions
  • Six fold increase in perinatal mortality in anorexia


Few facts about the commonly used medicines

SSRI & SNRI

  • Risk of exposure increased rate of congenital malformations, small increase risk of persistent pulmonary hypertension in newborn
  • Significant association b/w antidepressants and poor neonatal adaption syndrome (PNAS)
  • Paroxetine linked to fetal cardiac abnormalities
  • Breast feeding
    • Sertaline and Paroxetine — Safe
    • TCA Doxepin should be Avoided

Lithium

  • In utero exposure increased risk of Ebstein's anomaly & poor neonatal adaption syndrome
  • NICE recommends lithium should not be offered to pregnant or considering pregnancy unless and antipsychotic has been ineffective
  • Increased risk of relapse if stopped the drug in pregnancy
  • Lithium monitoring required in pregnancy 4wkly till 36wks and then weekly
  • Toxicity if  >1.2 mmol/l — most common ECG finding T-wave flattening
  • Using lithium women should give birth in the hospital
  • Should be withheld during labour and child birth due to high placental transfer
  • Levels checked again 12 hrs post delivery before being reinstated
  • Not advised in breast feeding

Sodium valproate

  • Highest risk of teratogenicity & adverse fetal outcome
  • NICE should no longer be offered to women of child bearing age
  • If become pregnant while using it urgent referral to specialist mental health team
  • Low IQ, poor language skills, poor motor functioning, impaired emotional functioning, increased risk of autism

Medication with associated adverse consequences

  • Fluoxetine poor neonatal adaption 
  • Lithium toxicity 
  • Lorazepam drug withdrawal
  • Olanzapin metabolic syndrome
  • Risperidone hyperprolactinemia
  • Sodium valproate persistent low IQ
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