Some people would do anything to become pregnant: undergo painful procedures, borrow money, mortgage their homes –anything, it seems, to have a child. While this is certainly understandable –parenthood is perhaps the raison d’être of our genes- it seems a shame that fertility would be something denied to some while granted to others. Arbitrary at first glance, it sometimes remains so even after extensive investigations. And yet there has been a lot of progress in understanding the mechanisms that both allow fertilization to occur and, maybe even more importantly, implantation of the egg and subsequent successful development of the pregnancy.
Obviously, there is a whole cascade of events each having to unroll in the proper order –such things as development of a viable and healthy egg in the ovary; its ovulation and successful encounter with a (hopefully) normal sperm; a clear and unimpeded route to an appropriately developed uterine lining… And these are just the early requirements for the long journey to l’accouchement. But, like a planning a trip, it is more likely to arrive at its destination if the car is sound and there is gas in the tank.
There are many roadblocks along the way, however, not the least of which are the body’s defence mechanisms which try to destroy foreign proteins that might pose a risk to the health of the organism. A fertilized and developing egg contains a mixture of just such foreign material from the male, and so in some cases might be construed as an attack. Although the uterine cavity is designed as an immunologically privileged site to thwart such a mistaken identity, for some reason it doesn’t always work. While this can be a subtle issue and difficult to detect, it can be an even more difficult thing to correct. There have been attempts to do this with medications to increase success during IVF (in vitro fertilization), but with few breakthroughs so far.
Sometimes my patients know more about this than I do, or perhaps pay more attention to disparate media reports that view every paper published, even in obscure journals, as fodder -landmark achievements. The job of journalists is to interest their readers, not to critically analyze the data and research whether or not the findings were merely a one-off that has not been validated by others in the field. A crash is news; a non-crash is not. Or am I being too cynical?
Last year, I remember seeing Janice, a woman who had been trying to become pregnant for several years. She told me that all of her tests that her GP had ordered had been normal as were those of her partner. Because she was already approaching 40, I immediately suggested that she would likely benefit from being assessed at an infertility clinic to see if they could expedite things. I wasn’t sure that I could help.
She shook her head. “I’ve already been to a clinic…” she said, with a sad expression on her face. “They wouldn’t listen to me.”
“Listen to you? What do you mean?”
She probed my face with her eyes for a moment to see if I was likely to listen to her. Then, apparently reassured, she sighed and sat back in her chair. “Well when they saw the normal test results they added their own versions of the same things but still couldn’t find anything wrong. So they suggested IVF. Time’s running out, they said.” She straightened in the chair and uncrossed her legs. “We can’t afford IVF,” she said, all the while staring at her lap where she was alternately wringing her hands and straightening the fabric of her dress. “They basically shrugged and told me to think about it and come back if I changed my mind.”
I waited for her to continue. There must have been some reason her doctor had referred her to me.
“Anyway,” she said after a long thoughtful pause and a quick gulp of air, “I went on the internet to do some research on other options…”
I managed to stop my eyes from rolling but I have to admit she caught me holding my breath. I never know how to react when a patient innocently offers a totally unorthodox and largely un-researched idea that they’ve found on some website lying in wait in a dark corner of the web.
But she noticed my expression and chuckled at my obvious discomfort. “You must get this all the time from desperate women, eh?” I smiled, embarrassed at being caught. “I’d been trolling through some weird stuff and then noticed a reference to a paper published in the journal Science –it was dated 2015, so not very old. It was only the abstract, though, and I wasn’t really all that sure that I understood it correctly…” she said, no doubt to head off any criticism before I could formulate it. “But there was also a reference to a BBC article talking about it so I looked at that as well.” She handed me a piece of paper with its address so I could look it up as well: http://www.bbc.com/news/health-34857022 and then to show she meant business, the abstract from Science: http://www.sciencemag.org/content/350/6263/970
When I didn’t immediately punch it in on my computer, she decided to explain. “There’s a parasite that increases a woman’s fertility, doctor,” she said, now intently studying the panoply of expressions that flitted, untended, in quick succession across my face. “Not all of them do, of course,” she added quickly, to show me that she wasn’t that foolish. “I mean, I don’t want to try one, or anything. I just wanted to know what you thought of the idea.”
While I gathered my thoughts, she explained. “I went back to the fertility clinic and asked their opinion about the worm… Ascaris lumbricoides –I memorized the name,” she said and immediately blushed. “Anyway, when I mentioned it to the clinic doctor, he just laughed at me. I don’t think he meant to, but it just kind of escaped from his face before he could stop it…” Janice suddenly leaned across my desk with a serious look on her face. “Of course I thought the doctor was being rude and dismissive, so I walked out on him and headed over to my GP’s office. At least she was more patient with me, but I could still read the disgust in her eyes. We managed to talk about it for a few moments, and then she decided to refer me to you. You’d listen, she assured me and then walked me out of the room…escorted me, almost. I think she just didn’t know how to handle the idea so she passed the buck.”
There was a sudden twinkle in Janice’s eyes that I almost missed –a mischievous expression that flirted briefly with her mouth, then disappeared. “My GP obviously didn’t think I needed an urgent appointment –although I did remind her of my age- so it took me a while to get in to see you.” She smiled a more ordinary smile this time, although it was still nuanced. “Several months, in fact.” I could hear the italics around the word from across the desk. “You’re a busy man, doctor.” I think I blushed.
She waited for a moment to let the thought embed itself in the desk. “So, what do you think of the worm idea?”
I struggled for words initially. It was an unusual idea, but I remembered a brief flurry of rumours when I was in medical school about fashion models infecting themselves with intestinal parasites to help them to stay thin. Perhaps they were just that: rumours, but the idea at least was not without precedent. “Well, I suppose if we could be sure that it wouldn’t affect the developing baby in any way… or you!” I paused for effect. “And that we could reliably get rid of the parasite when it had done its job –again without harming you or the baby- then…” I had run out of words. I had no intention of endorsing the idea, but I didn’t want to dash her hopes entirely. Hope is what keeps us going. I leaned across the desk towards her and smiled. “Let me just say that if you were my daughter and you had honoured me by asking for my opinion, I would have to say that some things are just not worth the risk.”
“You mean you’d advise against it?” She seemed relieved.
I nodded carefully, sensing I was being led into a trap.
A smile almost split her face in two and her eyes lit up and sparkled like lights on a Christmas tree. “Well, I’m pregnant now,” she said, italicizing the important word again and leaning across the desk as well. “It took so long to get to see you, I thought I’d use the time constructively.” My eyes must have betrayed something, because she suddenly extended her hand and grasped my arm. “Don’t worry, doctor, my husband and I decided against the worms. He said he was really worried about them…”
I relaxed my expression and was about to say something about a caring partner, when I noticed another twinkle in her eyes. “Yes,” she added before I could open my mouth. “He was afraid of getting them from me.”