Friday, April 5, 2013

It's all about the lungs . . .

Hi all.  I have been silent on my blog for quite awhile.  I got busy with life (and kids), plus I did not think anyone was really reading.  From looking at statistics, I may not have regular followers, but I have had quite a few more blog visits since I stopped writing, so maybe it's time to try and pick it up again.  :-)

Some changes in where I work and what population I care for have happened in the last few years.  I moved from California to the mid-west and from a Children's hospital to a local large hospital system.  This means less chance to encounter congenital malformations, cardiac, and/or surgical conditions first hand.  However, I still can write about my knowledge and experiences with these different encounters, I will most likely focus on prematurity and it's complications.

The main issue in my line of work is respiratory issues, hence the title.  The lungs are one of the last organs to develop in the infant, and continue to develop into our 30s!  That is one of the reasons that top marathoners tend to be in the late 20s, early 30s.  The human body continually amazes me.

The earliest babies that can be saved when born are in the 23-25 week gestation age.  This is about 6 months into pregnancy (which is really 10 lunar months, which is close to 9 calendar months, but not exactly).  This means that these babies are born 3-4 months before they are supposed to be.  At this point the air sacs where oxygen exchange takes place are still barely formed and not optimal for gas exchange.  Amazingly, some infants at this age are still able to survive and develop usually with the help of artificial ventilation.  Very occasionally, I have seen some infants close to 25 weeks who are able to breathe with the help of CPAP rather than a ventilator.  Amazingly strong little babies.

I will go further into ventilation and CPAP on a further blog post, but for now just know the lungs are usually the body system that give us the most difficulty early in life.