What You Need To Know Before Reading This Interview
Dr Gustavo Quiros Licona is a reproductive endocrinologist based in Mexico who has been practicing fertility medicine for over two decades. His clinic in Monterrey handles a high volume of IVF cases each year, and he's known for pushing back against the one-size-fits-all protocols that many clinics fall back on. The interview in question covers a lot of ground — from estrogen priming before transfer to how he handles recurrent implantation failure. The core thesis of the interview is straightforward enough: modern gynecology has gotten complicated, and a lot of the complexity doesn't actually improve outcomes. He talks about how clinics stack tests and interventions — ERA arrays, immunotherapy, aggressive endometrial scratching — without solid evidence that any of it moves the needle for most patients. What he recommends instead is going back to fundamentals: good embryo quality, proper endometrial timing, and then letting things run their course. I ran into this same problem last year when a patient came in after three failed transfers at a different clinic. They'd done the full workup — Karius test, repeat D&C for culture, cytokine panel, you name it. Nothing turned up. We ended up going back to basics: check the embryo stage at transfer, confirm the progesterone window was actually right, and move forward from there. Two months later she was pregnant. It wasn't rocket science, but it was frustrating that so much money had been spent chasing ghosts first.
One thing he emphasizes that most people miss is the importance of the luteal phase support protocol. A lot of clinics use the same pessary or injection regimen regardless of whether the patient had a fresh cycle, a frozen cycle, or a modified natural cycle. Dr Liconas his protocol based on what he calls the "progesterone exposure gap" — the difference between how much progesterone the patient was exposed to during follicle development versus what she gets during the luteal phase. In practice this means sometimes adding supplemental estrogen alongside progesterone when the gap is large, which sounds counterintuitive but makes sense if you think about how estrogen receptors prime the progesterone response. He also touches on embryo grading, which seems basic but he raises a valid point about how subjective morphology assessment really is. Two embryologists looking at the same embryo can give it completely different grades. He's been experimenting with time-lapse imaging more than most clinics I know, not because the technology is perfect, but because it at least captures data points you can revisit rather than relying on a single snapshot that may have been taken at a suboptimal moment. There's a section on recurrent pregnancy loss that's worth reading carefully. He distinguishes between anatomic causes, genetic causes, and what he calls "immunologic noise" — the kind of autoantibody finding that shows up in like forty percent of the general population and gets misinterpreted as pathological. I've seen patients get scared straight by these results, and the treatment plans that follow can be expensive and invasive without real benefit. He recommends focusing on the big three: anatomical survey, parental karyotype if indicated, and antiphospholipid syndrome workup. Everything else is gray area.
One practical takeaway from the interview that I use in my own practice: he suggests asking every IVF clinic for their cumulative live birth rate per embryo transferred, not per cycle started. Most clinics will give you the latter because it looks better on paper. The former is harder to find but tells you more about what you're actually getting into. I've had patients go in with one number and leave with a very different understanding after I dug up the other. Another detail that surprised me — he's critical of the routine use of hysteroscopy before every IVF transfer. He'll do one if there's a clinical indication, which in his experience is maybe twenty percent of his cases. The rest, he says, are fine without it. The problem is that hysteroscopy itself can cause microtrauma and inflammation that briefly reduces receptivity, so doing it too close to the transfer window can actually hurt rather than help. He recommends spacing it at least two cycles out if you do decide to have one. The interview also touches on male factor infertility in a way I wish more practitioners did. Instead of just saying "semen analysis is abnormal, let's go to ICSI," he pushes for a deeper look at what's driving the abnormality. Ovarian varicocele repair, hormonal optimization, antioxidant protocols — he goes down that list before settling on assisted reproduction as the only option. I've found this approach saves patients money and sometimes results in natural conception where everyone assumed that wasn't going to happen.
Get the Full Details
If you want to read the full interview yourself, it's not behind a paywall. You can find it by searching for the title along with his name and the clinic — Hospital Zambrano Hellion. That's where he practices. The clinic's website also has his published papers if you want to go deeper, though a lot of them are in Spanish. The interview itself appears to be in English and was likely produced by a fertility patient advocacy group rather than a medical journal. My overall take after reading through it: he's a good clinician who thinks critically about his own practice, which is rarer than you'd expect. Not everything he says will align with your current protocol, and some of it might challenge assumptions you didn't even know you were holding. That's fine. The best thing you can do is evaluate his recommendations against your own situation and your doctor's advice. Don't take it as gospel, but don't dismiss it either. One caveat I should mention: Dr Licona's approach works best for patients who are relatively young and have good prognosis indicators. If you're dealing with severe diminished ovarian reserve or multiple failed cycles with poor-quality embryos, his "keep it simple" philosophy might feel unsatisfying, and frankly it may not be enough. In those cases you often need more aggressive intervention, not less. He acknowledges this but doesn't spend much time on it in the interview, which skews toward the optimistic end of the spectrum.
That's about it. Read the interview, talk to your doctor, make your own call. Good luck.
