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  • Blog Entries

    • By AllThingsNeonatal in All Things Neonatal
         0
      It’s Father’s Day so why not put out a post about a role for father’s in resuscitation. Given that we are talking about a parent being present for resuscitation after delivery and the mother will have just delivered, what follows is a discussion about having the other parent present at the ensuing resuscitation if needed. This will of course not always be a father as in female same sex parenting so what follows could apply to any situation in which there are two parents present and one has just delivered.
      Since I was a resident this question has been batted around. During a resuscitation is it better to have families present or not? Certainly work has been done in this area which has demonstrated that from the families perspective this is a worthwhile pursuit. Families wish to be present and as a parent myself I would say it would be far more frightening to be kept out of the room than invited in to see what is going on. A mind can often conjure up scenarios that are far worse than actually exist if left to ourselves. I think in many centres now this is the case that families are invited into the room when their infant is being resuscitated but looking at things from another standpoint the question becomes what effect this has on the team doing the work? Does the team perceive that their workload is increased and if so could this affect performance?
      An Answer to this question?
      Dr. Schmölzer and his team in Edmonton (my former place of work) have atttempted to answer this question by looking at initial resuscitations in the delivery suite. Their study Does parental presence affect workload during neonatal resuscitation? used a tool I was unfamiliar with called the multidimensional National Aeronautics and Space Administration Task Load Index (TLX) survey to assess workload. After a resuscitation team members were invited to fill out the survey anonymously and in total 204 submissions were done. Degree of intervention after delivery included requiring stimulation 149 (73%) and suction 130 (64%), 120 (59%) continuous positive airway pressure, 105 (52%) positive pressure ventilation, 33 (16%) intubation, 10 (5%) chest compression, and 4 (2%) reported administration of epinephrine during resuscitation.
      Results and Thoughts
      Looking at the raw scores on the TLX the difference was highly significant in favour of having a parent present.
      When further subdividing by apgar scores an interesting finding emerges in that as the apgar score increases the workload decreases. Even in the lowest apgar range the workload though appears to be equivalent.
      I wonder if the finding results from being able to kill two birds with one stone? Part of the duty for any health care provider performing a resuscitation is to inform the parent of what is happening. When a patient is not doing well a provider might feel distracted and torn between providing the immediate care required and keeping the family abreast of what is happening. Having the family member present to see exactly what is going on reduces the amount of communication using descriptions and having to explain what they mean. Being able to point at an infant on CPAP and having respiratory distress for example is far easier with the parent present to point at the finding of indrawing than taking the time to explain it. I suppose the number of questions might even be lower in that circumstance. If a baby is quite ill at birth though and receiving chest compressions or epinephrine I would imagine it would be difficult to educate the family concurrently so explaining in detail what has been happening might be deferred to a later time point and hence the workload might be no different. What the data does suggest to me though is that in addition to previous research demonstrating benefits of families being part of the resuscitation for themselves, the team is no worse off in terms of workload and might even benefit from having them there as well.
      The next logical study will look at resuscitations on the unit rather than in the case room but I think the question that was talked about as a resident can be put to rest.
    • By AllThingsNeonatal in All Things Neonatal
         0
      It isn’t often I have had the pleasure of reviewing a paper from my own center (maybe because I have been reticient to critique my colleagues) but this paper I couldn’t resist. If my colleagues are reading this then I will provide a spoiler alert that I am not planning on trashing the paper. A few years ago my colleague Dr. Yasser El Sayed (who many of you will know from his work on targeted echocardiography and ultrasound and most recently on www.pocusneo.ca) began touting the benefits of vasopressin as an inotrope. I have to confess, my knowledge of the drug was mostly at that point as a molecule that helps regulate water balance at the level of the kidney. As the saying goes you can’t teach an old dog new tricks so I suppose it has taken me some time to get around to embracing the other benefits of vasopressin. As an inotrope it has some interesting properties. It is through action on two different receptors that the appeal of this medication is derived. Firstly it acts on V1 receptors of blood vessels, causing vasoconstriction on the systemic side and supporting blood pressure and almost paradoxically in the lung at the same receptors, causes pulmonary vasodilation mediated by the endothelial release of nitric oxide. In the kidneys, as mentioned above it helps in water reabsorption through its action on V2 receptors. In other words it supports both the systemic and pulmonary vascular systems and maintains intravascular volume by preventing hypovolemia. That is a drug with some interesting properties.
      Case Series From Winnipeg
      One of our previous fellows Thomas Budniok authored Effect of Vasopressin on Systemic and Pulmonary Hemodynamics in Neonates along with Dr. El Sayed and Dr. Deepak Louis. This was a retrospecitve case series from 2011-2016 looking at patients who received vasopressin and I am delighted to say I cared for many of these babies so saw firsthand how the drug worked. The drug was typically used as a second or third line agent for hypotension and would be also be used when pulmonary hypertension complicated systemic shock as well (in addition to use of iNO). To look at the effect of vasopressin on hemodynamics, the authors used a previously validated score called the vasoactive inotropic score (VIS) = dopamine dose (μg/kg/min) + dobutamine dose (μg/kg/min) + 100 X epinephrine dose (μg/kg/min) + 10 X milrinone dose (μg/kg/min) + 10,000 X VP dose (U/kg/min) + 100 X norepinephrine dose (μg/kg/min). By looking at changes over time this gives an impression of the effect of the drug on other inotropic requirements. The authors looked at 33 episodes in 26 patients with a median starting dose was 0.3 mU/kg/min (IQR: 0.2–0.5).
      The Results
      While the starting dose was 0.3 mU/kg/min , the maximum dose was 0.65mU/kg/min (IQR: 0.4–1.2) with a duration of therapy of 37 hours (IQR: 21–69).
      As you can see from the first figure of the paper, mean, systolic and diastolic blood pressures all rose over time. Might this be though that the infants were just getting better or we were using other inotropes to get the effect? Also as the measurements were taken at baseline and then 6,12 and 24 hours the influence of other measures might be expected to be less but it is the VIS that may yield more information.

      Maybe not surprisingly, given the changes in blood pressure the following benefits to lactate and pH were also noted.
      The VIS scores declined from 15 (9–20) to 13 (7–20) and 10 (8–16) at 24 and 48 hours post starting of vasopressin. Although not signficant, the median number of inotropes in use went from 2 to 1 after 24 hours.
      As good as the medication seems to be the authors noted hyponatremia in in 21 episodes (64%) with severe hyponatremia in 7 episodes (33%). Personally I can comment that I stopped vasopressin myself in a couple patients due to this complication.
      Final Thoughts
      I suppose it goes without saying that future studies will need to look at vasopressin using a control group. Having said that I do believe this study provides some decent evidence of effect. The short time frame of analysis and the significant changes in hemodynamics and markers of perfusion with a reduction in dosing of additional inotropes suggests a decent effect of this drug. If you choose to use this medication however what prevents this from being the “perfect inotrope” is the limitation of possible hyponatremia with its use. Hyponatremia though may be seen with higher doses so I suppose the saying may apply that with vasopressin a little may go a long way!
    • By Stefan Johansson in Department of Brilliant Ideas
         0
      I like projects outside my clinical and academic work. 99nicu was the first big project that came out in public from my "Department of Brilliant Ideas".
      Since several years, I have devoted a lot of work for a project that eventually led to the startup Neobiomics, since 2019 under the wings of the Karolinska Innovations AB. Neobiomics provides ProPrems®, a high-quality multi-strain food supplement.
      Entering the startup universe has been like embarking a rollercoaster journey. In many ways a personally rewarding experience, but it has also been walking a challenging path with many obstacles to overcome along the way.
      Regardless of the ups and downs, bringing an idea into a startup context will make you work. A lot. (And for most of the first few hundred/thousand hours, without renumeration.)
      I recently saw a TED-talk by Darria Long (see it below), on how systematic strategies in emergency medicine can be used to cope with high work loads in general. And it struck me that we, as health care professionals, are well fitted as startup founders.
      Not anyone make the choice to work in health care. IMHO, we are a selection of people sharing a special compassion for what we do. And, through long education and training, the importance of know-how and experience is incorporated in our DNA.
      How does all this make health care professionals fit for startups?
      we build and work through trustful relations we like to meet the unknown we work hard for a clear objective, even if the outcome may be uncertain despite limited resources, we manage things first thanks to limited resources, we can prioritize our work is problem-based, not solution-based our work has structure, even in a seemingly chaotic  situation the detective work in medicine makes us good lateral thinkers Naturally, the startup universe requires its own specific skills (finance, legal, development, communication etc-etc). And the trajectory for becoming a startup founder is similar to becoming a health care professional - one needs to learn, practise and connect with others to make something out a brilliant idea.
      You have an idea? Make it happen!
      (this post is dedicated to KI Innovations AB)
       
       
    • By AllThingsNeonatal in All Things Neonatal
         0
      After several reports providing reassurance to breastfeeding mothers, two very recent reports are giving me reason to pause. The Canadian Pediatric Society has been recommending breastfeeding if a mother has COVID19 with precautions in place; Breastfeeding when mothers have suspected or proven COVID-19. It would be heresy to suggest that a mother not be permitted to breastfeed her infant but what follows are two reports that at the very least may need to enter the discussion when a COVID19 positive mother gives birth and is deciding about route of feeding.
      Toronto Case Report
      The first report was notable not so much for breastmilk but rather that a mother with a chronic immunodeficiency and pneumonia from COVID19 had placental surfaces that tested positive on PCR for COVID19. This was the main focus of the paper Probable congenital SARS-CoV-2 infection in a neonate born to a woman with active SARS-CoV-2 infection. In the same paper though, testing of breastmilk in this mother demonstrated a positive PCR with a semi-quantitative cycle time result (there are 40 cycles of amplification of RNA in PCR testing- the further away from 40 cycles the more likely it is a true positive).

      The results above were positive at 2 days and negative at 7 days. One could possibly excuse this case as an anomaly since the mother in this case not only was sick but also has chronic neutropenia but then along comes another report.
      Second Research Report
      This week a second report emerged that adds to the uncertainty around breastmilk. Detection of SARS-CoV-2 in human breastmilk looks at two mothers one of whom was negative on testing of breastmilk but the other unfortunately tested positive. The authors included the following timeline which is very informative.
      From the timeline above you will note that in the second case the mother becomes positive at 11 days of age and the infant tests positive around the same time the milk comes back positive. The infant in this case also develops RSV which likely explains the symptoms they developed later in the course. What is concerning to me though is that in this case while the mother was COVID19 positive, she was not acutely ill. When thinking of vertical transmission this has been something that has been postulated in suspecting that those with more severe illness have higher viral loads and therefore may be capable of vertical transmission. Not the case here if the results are to be believed. Adding to the strength of the result are Ct values for SARS­CoV­2 N peaked at 29∙8 and 30∙4 in whole milk and skimmed milk respectively so this seems real.
      How does this differ than past testing?
      What intrigues me about this study in particular is that past research on transmission into breastmilk has failed to detect the virus. It could be that previous testing close to delivery was negative and that with time might the virus enter breastmilk? At eleven days I think this may be the latest testing done. In virtually all cases reported about COVID19 positives in newborns the authors have always explained the painstaking steps they took to prevent postnatal infection. I do wonder now if some of these cases may be related to a small percentage of women carrying the virus in their breastmilk. This leaves us in a tough spot. What do we tell women who are thinking of breastfeeding and have COVID19? There will need to be discussion on this but one option is to proceed with feeding accepting there may be a small risk of transmission. A second option would be to test milk but if the transmission occurs late you may miss it in hospital on initial sampling Finally it may be worth pumping and discarding milk until mothers test negative and using donor breastmilk in the meantime (or formula for those who don’t have DBM).
      Regardless I think this information coming out will need to be digested and centres think about how they will approach this issue. My guess is these will not be the last reports on this.
  • Upcoming Events

    • 03 October 2020 Until 05 October 2020
      1  
      First announcement of 
      Recent advances in neonatal medicine
      IXth International symposium honoring prof. Richard B. Johnston, MD, Denver, US
      26-28 April 2020, in Würzburg, Germany
      Find more information in the attached folder.
      First_Announcement_01.2020.pdf
    • 17 November 2020
      1  
      The 17th of November each year is the World Prematurity Day. Originally started by parent organisations in Europe in 2008, the World Prematurity Day is an international event aiming at high-lighting the ~15 million infants born preterm each year.
      Read more about this day on the March of Dimes web site, and on Facebook.
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