Vicariously Experienced Pain During Abortion

Philip G. Ney, MD, FRCP(C), MA, FRANZCP, RPsych

October 2001

As the psychology and neurochemistry of PTSD is increasingly well researched, there appears strong evidence that people who experience overwhelming life threatening stress or prolonged periods of extreme stress, develop a unique psycho-biological reaction. 1,2,3 There is also evidence that this reaction, mediated by a variety of hormones, creates a more or less permanent memory and abnormal stress response many years later.4,5,6 Though there are good reasons not to classify the parent's abortion experience as a post traumatic stress disorder (PTSD), it may be that PTSD symptoms found in people following abortion arise less from their own painful experience and more from the agony of the baby being aborted. The unborn baby's terrifying trauma may be vicariously experienced by the mother via a combination of psychological and neurochemical mechanisms. Hormones associated with the infant's stress and pain probably cross the placental barrier in sufficient amounts to be perceived and experienced by the mother. Sensations from the uterus during abortion also may evoke images in the mother's mind. Like all mothers, the woman undergoing an abortion automatically empathizes with her infant's distress, especially if she had a painful infancy. Though this vicarious experience of trauma may be repressed, it makes an indelible imprint, which may later affect the woman's health. If these deductions are correct it could help explain why many women cannot forget the intense pain felt at the time of abortion.

Not everybody feels acute stress or pain during abortion. It is possible to explain a numbing or even euphoric response mediated by the same neurochemistry. Several different neurotransmitters are involved in the modulatory actions of the pain circuits, and these exert a bi-directional control of pain through ON cells that facilitate and OFF cells that inhibit dorsal horn nociceptive neurons. "There is evidence that this circuit contributes to analgesia in humans and may be activated by acute stress or the expectation of relief."7 "A decrease and subsequent increase in nociceptive threshold in the whole body are clinical symptoms frequently observed in the course of acute systemic infection." "The switching of nocisseptor from hyperalgesia, accompanied by sickness, may reflect changes in the host strategy for fighting microbial invasion as the disease progresses."8 Whether the immediate response to acute trauma is distressing or numbing, the memory of either can be biochemically ingrained. This could explain why distress or euphoria from abortion results in conflicts that persist and even increase with time.

Geraldine*, a 51 year old married woman, was referred to me for assessment and possible treatment by her new family physician because of her intermittent depression, persistent pain in her body, and irritable bowel syndrome. She had fired her previous family doctor, because she felt he did not take time to listen and get to the bottom of her problems. She feels that life should be good, but she cannot enjoy it. She and her husband are retired, live a relaxed life and spend long vacations in the tropics. She likes to go on leisurely walks, doesn't listen to "negative people", and avoids violence - even the news on television. However, she has "pain in every muscle and joint of my body." She's angry because her husband won't just cuddle her and their sex life has progressively deteriorated.

Geraldine believed she had a reasonably good childhood although she always hated her stepfather. Between marriages she was raped and became pregnant. "The worst part was finding myself pregnant. I just wanted to get rid of it. I know that sounds cold and I'm not a cold person. You must believe me that it doesn't bother me now." When she first talked about her abortion she cried profusely, but on subsequent occasions stated that "it was absolutely not a problem."

Geraldine is a tense, clinically depressed woman who indicates one of her greatest concerns is nightmares. They are always about people who are chased, cut up, shot up, brutally beaten, stabbed, or otherwise come to a violent end. She is surprised she doesn't recognize any of the people in the dreams. These nightmares often awaken her with a frightening knot in her stomach. She shakes her husband who gradually calms her down before she can go back to sleep. At the time of examination the only medication she took was for pain, but it seldom took away the deep discomfort. For lack of evidence her doctor was loath to diagnose anything specific, but agreed it could be fibromyalgia.

Although most women are reasonably well anaesthetized during an abortion, many later report intense pain. Not infrequently the memory of this pain haunts them years later. There seems to be no good explanation, but the possibility that the woman is experiencing vicariously the intense pain of the infant while it is being terminated is a hypothesis that should be explored clinically and in carefully conducted research. The way in which the mother vicariously experiences the agonizing dismemberment of her unborn fetus could be mediated through pain hormones absorbed into the mother's bloodstream.

Evidence is accumulating that chronic stress while pregnant may result in lower birth weight babies and a heightened risk of mood disorders and cognitive deficits. Elevated glucocorticoid hormones, induced in the mother in response to stress, appear to be mediators of events programming the developing central nervous system of the fetus and rendering it to dis-function in later life." 9 It is apparent that stress also increases the estrogen levels of the mother, which in animals can feminize the unborn male offspring. "Early life Ôprogramming' of neuroendocrine systems and behaviour by stress and exogenous and endogenous glucocorticoids appears to be a fundamental process underpinning common disorders."10 If hormones associated with pain and stress can cross the placental barrier from mother to pre-born baby (PBB) then it is logical that the same hormones can cross from infant to mother. At the same time, various sensations perceived by the mother during the abortion from pain fibres in her uterus, coupled by the ability of the mother to empathize with her infant's terror and pain, could produce an indelible image in the mother's mind.11 A combination of these three mechanisms could produce an indelible impact in the mother's mind. Childbirth which may be very painful and stressful, very seldom results in post traumatic problems possibly because oxytocin prevents the over-consolidation of childbirth memories.

The PBB being aborted doesn't die instantaneously, but feels a succession of shocks beginning with the introduction of the curette into the amniotic sac. Abortions last from two to twenty minutes. Not a long time but an eternity of anguish if you are being progressively dismembered. This is evidence an unborn baby feels pain, possibly beginning in the first trimester. "Invasive diagnostic and therapeutic techniques are increasingly applied to the fetus. It is not known if the fetus feels pain during such procedures, but the fetus does mount significant stress, hormonal and circulatory changes in response to these, from 18 to 20 weeks."12 While cortical processing of pain theoretically becomes possible after development of a thalamo-cortical connection the 26th week of gestation, noxious stimuli may trigger complex reflex reactions much earlier. "Triggering stress responses most likely effect the development of an individual at very early stages."13 Tissue injury causes nociceptor nerve terminals to depolarize." "Efferent supra spinal influences, in turn, determine the activity of the interneurons by releasing a variety of neurotransmitter substances."14 "...fetal pain causes changes in behaviour, hemodynamics, and hormonal functions..."15 "The definition of pain proposed by the International Association for the Study of Pain is not adapted to the newborn, or to the fetus, because it assumes recognition and verbal expression of an unpleasant experience."15 "The pain system may be activated in fetal development before its projections will penetrate the frontal cortex; therefore, painful experience may induce some physiological consequences even if it has not been perceived as pain, and may lead to long lasting and profound consequences."16 But, even if the sensations felt as adults experience discomfort are lacking, tearing tissue will result in the outpouring of hormones associated with pain and stress. When experiencing severe stress, people secrete endogenous stress hormones that over-consolidate traumatic memories.17

The pathophysiology of pain involves neuron pathways and a variety of pain producing substances. These include acetylcholine, serotonin, histamine, bradykinin, prostaglandins, substance P, somatostatin, cholecystokinin, vasoactive intestinal polypeptide, noradrenaline and endogenous opioid peptides.18 It appears that cholecystokinin and their receptors "are expressed in the human pancreas at early stages of gestation".19 In one study of pre-term infants and their mothers it was found that both plasma somatostatin and cholecystokinin levels were significantly higher in infants than in their mother.20 Through opioid and cholecystokonin, milk also causes affectives changes that facilitate infant mother bonding.21

Human parents feel a keen sensitivity to their baby's distress especially when their infant hurts itself and cries. You can see the pain reflected in the parents' faces. Parents may have tried to deny the existence of the unborn infant's humanity and suppressed their response to the abortion, but the vicariously felt pain could make a persistent impact. During the woman's vigorous and healthy life she is able to avoid the subconscious expressions of the unborn infant's pain, but as she ages, that impact may become increasingly undeniable. Eventually she presents to her physician with various kinds of body pain, muscle tension, abdominal or chest pain that is not easy to diagnose or medicate.

In psychotherapy when women are able to identify the source of their pains as coming from the unborn infant's anguish, they initially recoil in horror, then relax with a useful piece of insight. When they are able to recognize the unborn infant's individual humanity, welcome that person, visualize the terrible death and their contribution to it, inter the body and commit the spirit to its maker, there is considerable relief.

References

1. van der Kolk BA. Psychological Trauma. Washington, DC: American Psychiatric Press, 1987.

2. van der Kolk BA & van der Hart O. The intrusive past: The flexibility of memory and the engraving of trauma. American Imago, 1991;48:425-454.Van

3. 1989;146:1530-1540.Pitman R, Orr S, Shalev A. Once bitten twice shy: beyond the conditioning model of PTSK. Biol Psychiat 1993;33:145-146.

4. Van der Kilk BA, Greenberg MS, Boyd H, Krystal JH. Inescapable shock, neurotransmitters and addiction to trauma: Towards a psychobiology of post traumatic stress. Biol Psychiatry 1985;20:314-325.

5. Charney DS, Deutch AY, Krystal JH, Southwick SM, Davis M. Psychobiologic Mechanisms of Post Traumatic Stress Disorder. Arch Gen Psychiat 1993;50:294-305.

6. McGaugh JL. Involvement of hormonal and neuromodulatory systems in the regulation of memory storage. Ann Rev Neurosci 1989;2:255-287.

7. Fields, HL Pain Modulation, expectation, opioid analgesia and virtual pain. Prog Brain Res 2000; 122:245-53

8. Hori T, Oka T, Hosoi M, Abe M, Oka K: Hypolthalamic mechanisms of pain modulatory actions of cytokines and prostaglandin E2. Ann N Y Acad Sci 2000;917:106-20.

9. Holmes, M.C. Early stress can programme our health. J Neuroendocrinol 2001 Feb;13(2):111-2.

10. Welburg LA, Seckl JR Prenatal stress, glucocorticoids and the programming of the brain. J Neuroendocrinol 2001 Feb;13(2):113-28

11. Moleman N, van der hart O, van der Kolk BA The partus stress reaction: a neglected etiological factor in post-partum psychiatric disorders, J Nerv Ment Dis 1992; 180:271-272.

12. Smith R.P., Gitau R. Glover V, Fisk NM: Pain and the Human Fetus. Eur J Obstet Gynecol Reprod Biol 2000 Sept:92

13. Vanhatalo S, van Nieuwenhuizen O. Fetal Pain? Brain Dev 2000 May; 22(3):145-50.

14. McHugh JM, McHugh WB. Pain: neuroanatomy, chemical mediators, and clinical implications. AACN Clin Issues 2000 May; 11(2): 168-78.

15. Mahieu-Caputo D, Dommergues M, Muller F, Dumez Y. Fetal Pain. Presse Med 2000 Apr 1:29(12):663-9.

16. Kostarczyk E: Recent advances in neonatal pain research. Folia Morphol (Warsz) 1999; 58(3 Suppl 2):47-56.

17. LeDoux JE. Information flow from sensation to emotion: plasticity of the neural computation of stimulus value. In Gabriel M, Morre J (eds) Learning Computational Neuroscience: Foundations of Adaptive networks. Cambridge, MA, MIT Press, 1990.

18. Lasagna L.: The management of pain. Drugs 1986; Suppl 4:1-7, Review.

19. Nishimori I, Kamakura M, Fujikawa-Adachi K, Nojima M, Onishi S, Hollingsworth MA, Harris A.: Cholecystokinin A and B receptor MRNA expression in human pancreas.

20. Tornhage C.J., Serenius F, Uvnas-Moberg K, Lindber T: Plasmsa somatostatin and cholecystokinin levels in pre-term infants and their mothers at birth.

21. Blass EM: Mothers and their infants: peptide-medicated physiological, behavioral and affective changes during sucking.