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  • Esketamine injection...

Esketamine injection just after childbirth reduces depression in new mothers: BMJ

Dr. Kamal Kant KohliWritten by Dr. Kamal Kant Kohli Published On 2024-04-11T06:30:37+05:30  |  Updated On 11 April 2024 3:48 PM IST
Esketamine injection just after childbirth reduces depression in new mothers: BMJ
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Esketamine is made from a drug called ketamine. It's used as an anaesthetic and to treat depression, yet the effect for mothers with perinatal depression is unclear.

Researchers have found in a new clinical trial that single low dose injection of esketamine given immediately after childbirth may reduce major depressive episodes in individuals with depressive symptoms during pregnancy (prenatal depression). The findings of the clinical trial has been published by The BMJ today.

The results suggest that low dose esketamine should be considered in new mothers with prenatal depressive symptoms.

Depression is common during pregnancy and shortly after giving birth and can have several adverse effects on new mothers and their infants.

To examine this further, researchers based in China and the USA wanted to find out if a single low dose injection of esketamine given just after childbirth might reduce subsequent depression in mothers with pre-existing prenatal depression.

Their findings are based on 361 mothers (average age 32 years) enrolled from five Chinese hospitals from June 2020 to August 2022 with no medical history of depression and no diagnosis of depression in pregnancy, but who had scores on a scale consistent with mild prenatal depression and were preparing for childbirth.

None of the participants had severe pregnancy complications, or any condition that meant they couldn’t be given esketamine.

Information on factors including age, weight (BMI), education level, family income and existing health conditions was recorded at the start of the trial and participants were randomly assigned to either esketamine or placebo intravenously infused over 40 minutes after childbirth.

Participants were interviewed 18 to 30 hours after giving birth and again at 7 and 42 days.

Major depressive episode was diagnosed with the Mini-International Neuropsychiatric Interview at 42 days. Depression was also assessed using the Edinburgh depression score at 7 and 42 days, and the Hamilton Depression Rating Scale score at 42 days. No participant took antidepressants or received psychotherapy during the follow-up period.

At 42 days after giving birth, 12 of 180 (6.7%) of mothers given esketamine experienced a major depressive episode compared with 46 of 181 (25.4%) of those given placebo (a relative risk reduction of about three-quarters).

As expected, mothers given esketamine had lower Edinburgh depression scores at 7 and 42 days, and a lower Hamilton depression score at 42 days.

Based on these figures, the researchers estimate that, for every five mothers given esketamine, one major depressive episode would be prevented.

More neuropsychiatric adverse events such as dizziness and diplopia (double vision) occurred with esketamine (45% v 22%). However, symptoms lasted less than a day and none needed drug treatment.

The researchers acknowledge that excluding mothers with pre-pregnancy mood disorders may have affected the validity of their results, and the short follow-up period may have led to under-reporting of neuropsychiatric symptoms and other adverse events.

What’s more, most participants had only mild prenatal depressive symptoms, so it’s unclear whether esketamine is equally effective in those with more severe depressive symptoms.

Nevertheless, they conclude that for mothers with prenatal depressive symptoms, a single low dose of esketamine given shortly after childbirth decreases major depressive episodes at 42 days postpartum by about three quarters.

These results are generally consistent with previous work investigating the effects of low dose ketamine or esketamine on postpartum depression, mainly in mothers after caesarean delivery, and, importantly, the researchers say their trial “extends existing understanding by targeting women with pre-existing prenatal depression, who were therefore at high risk of postnatal depression.”

As such, they conclude that low dose esketamine should be considered in mothers with symptoms of prenatal depression.

References: Shuo Wang, attending physician1, Chun-Mei Deng, attending physician1, Yuan Zeng, associate professor1, Xin-Zhong Chen, consultant physician2, Ai-Yuan Li, consultant physician3, Shan-Wu Feng, professor4, Li-Li Xu, consultant physician2, Liang Chen, consultant physician3, Hong-Mei Yuan, consultant physician4, Han Hu, attending physician2, Tian Yang, attending physician3, Tao Han, attending physician3, Hui-Ying Zhang, attending physician4, Ming Jiang, attending physician4, Xin-Yu Sun, professor5, Hui-Ning Guo, attending psychiatrist5, Daniel I Sessler, professor67, Dong-Xin Wang, professor17 BMJ 2024; 385 doi: https://doi.org/10.1136/bmj-2023-078218 (Published 10 April 2024)

The BMJesketamineesketamine injectionpregnancydepressionPrenatal depression
Source : The BMJ
Dr. Kamal Kant Kohli
Dr. Kamal Kant Kohli

Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751

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