Depression During Pregnancy
Depression is a very common problem in today’s world, with some reports indicating that around one in every four people may be suffering from this mental illness.
Depression during pregnancy is also very common with an incidence of 6 to 38%. Some women may have been suffering from depression even before pregnancy. Several hormonal changes take place during pregnancy, which also affect the mood.
Studies indicate that depression during pregnancy could affect the mother as well as the baby. There are reports, which indicate that untreated depression during pregnancy could result in preterm babies, low birth weight, or behavioral changes like irritability and reduced activity in the baby. Depression could also make it difficult for the mother to deal with the additional stress of the pregnancy, and manage household issues and other children as well. Suicidal thoughts may also disturb the woman. The woman should not be left to battle depression on her own in this delicate period of her life.
Depression during pregnancy can be treated with medications or through alternative approaches. Psychotherapy including cognitive behavioral therapy and interpersonal therapy have been found to be useful in non-pregnant as well as in pregnant individuals. Moreover, it is free from adverse effects. Yoga may also be beneficial though it should be done only under the guidance of a trained yoga teacher. Herbal medicines should be avoided as far as possible since their unknown effects could be detrimental to pregnancy.
Which Patients are Advised Antidepressant Medications during Pregnancy?
As mentioned above, alternative therapies should be tried as a first line of treatment of depression during pregnancy, especially in mild cases. Moderate to severe cases are likely to need antidepressant medications. Many times, a woman may be taking an antidepressant before pregnancy, the use of which may continue during early pregnancy, especially if the pregnancy is unplanned.
What is New in Antidepressants Use during Pregnancy?
Pregnant women are using more of selective serotonin reuptake inhibitor (SSRI), an antidepressant drug that alters fetal brain development by increasing the volume of brain regions related to emotional processing. Women using SSRI during pregnancy are more severely depressed than women with untreated prenatal maternal depression.
Drugs belonging to the selective serotonin reuptake inhibitor (SSRI) group are commonly used during pregnancy and otherwise. Drugs in this group include fluoxetine, fluvoxamine, and sertraline. Newer drugs are preferably avoided during pregnancy till adequate information regarding their safety is obtained. The older class of drugs, the tricyclic antidepressants which include amitriptyline and imipramine, are used very rarely. The use of other antidepressants like atypical antidepressants in pregnancy is even rarer.
Antidepressant drugs when taken during pregnancy cross the placenta and reach the fetus. Thus, the baby is exposed to the drugs in its developmental stages. Several studies have been conducted to assess the effect of antidepressant drugs taken during pregnancy on the baby. However, no studies have produced definitive results to conclude if antidepressants cause harm to the baby. Adverse effects noted in babies whose mothers received SSRI antidepressants during pregnancy include neurobehavioral changes like tremors, increase or decrease in muscle tone, irritability, spasms and problems with sleep. Mild respiratory distress and low blood sugar levels have also been noted. However, these effects have been temporary and were not usually associated with any long-term consequences. Some of these changes were considered to be a part of neonatal adaption syndrome. Neurobehavioral changes were also noted in the baby with the use of tricyclic antidepressants during pregnancy.
Paroxetine, in particular, has been associated with heart anomalies when taken in the first trimester and should, therefore, be avoided in pregnancy.
Antidepressants also increased the risk of preterm birth, especially when taken later during pregnancy, and resulted in low birth weight. It is also possible that they can cause miscarriages in early pregnancy.
Antidepressants have a potential risk of persistent pulmonary hypertension in the newborn. The condition results in a lack of oxygen in the body and causes damage to the lungs, heart and even the brain.
What are the Current Recommendations Regarding Use of Antidepressants in Pregnancy?
Studies indicate that treatment is critical for depression as it can adversely affect pregnancy. The SSRIs are commonly used as antidepressants during pregnancy. SSRIs do cause side effects but most of them, like neuro-behavioral side effects, are short lasting and do not usually have any long-term consequences. Some other side effects like heart defects and persistent pulmonary hypertension of the newborn have been noted, however, they are very rare. Most studies suggest that:
- Women with depression before pregnancy but who are stable could stop the antidepressant before pregnancy on the advice of the prescribing doctor.
- Depression during pregnancy should be treated.
- Mild depression should be treated with psychotherapy and other alternative methods of medications.
- Moderate-to-severe depression can be treated with medications.
- SSRI drugs can be used for the treatment of depression. Paroxetine should be avoided since its use has been associated with heart defects. Newer drugs should be avoided till adequate experience with their use in pregnancy is obtained.
- The prescribing doctor should opt for lowest possible dose for the shortest period of time possible.
- Use of substances of abuse, smoking, and alcohol, which is common in depressed people and may also affect the baby, should be avoided.
- Women should receive regular prenatal care and adequate nutrition during the pregnancy.
Thus, till more is known about the topic, current recommendations indicate that antidepressants can be used in pregnancy if their benefits are likely to overweigh the risk on the health of the fetus and the pregnancy.
- Gong H, Ni C, Shen X, Wu T and Jiang C. Yoga for prenatal depression: a systematic review and meta-analysis. BMC Psychiatry 201515:14; DOI: 10.1186/s12888-015-0393-1
- Previti G, Pawlby S, Chowdhury S, Aguglia E, Pariante CM. Neurodevelopmental outcome for offspring of women treated for antenatal depression: a systematic review. Arch Womens Ment Health. 2014; 17(6): 471–483. doi: 10.1007/s00737-014-0457-0
- Huybrechts KF, Sanghani RS, Avorn J, Urato AC. Preterm Birth and Antidepressant Medication Use during Pregnancy: A Systematic Review and Meta-Analysis. PLoS One. 2014; 9(3): e92778. doi: 10.1371/journal.pone.0092778
- Yonkers KA et al. The management of depression during pregnancy: a report from the American Psychiatric Association and the American College of Obstetricians and Gynecologists. Gen Hosp Psychiatry. 2009; 31(5): 403–413.
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Latest Publications and Research on Antidepressants Use during Pregnancy
- Antidepressant treatment with fluoxetine during pregnancy and lactation modulates the gut microbiome and metabolome in a rat model relevant to depression. - Published by PubMed
- Longitudinal Study of Maternal BMI in Successive Pregnancies. - Published by PubMed
- Treating Anxiety During Pregnancy: Patient Concerns About Pharmaceutical Treatment. - Published by PubMed
- The international prevalence of antidepressant use before, during, and after pregnancy: A systematic review and meta-analysis of timing, type of prescriptions and geographical variability. - Published by PubMed
- Patient decision aids for antidepressant use in pregnancy: a pilot randomised controlled trial in the UK. - Published by PubMed