How well do you know the nephrology blogosphere?

I was reading Andrew Sullivan’s The Daily Dish the other day and came across this blurb:

The current Ryan budget will impact today’s seniors immediately, due to its cuts to Medicaid. I blog about dialysis; here’s how the Ryan budget plays out in the provision of dialysis:

The blurb is from an e-mail and Sullivan does not name the author or give a link back. You should read the whole post. It is well written and very clear. The author opened my eyes about the importance of Medicaid to incenter dialysis.

After I finished it, I wondered who the author was. After a minute I sent off an e-mail to my best guess and today I received an e-mail telling me I was right.

Can you guess the author. Put your guess in the comments.

Facebook

In February, for the first time, Facebook sent more readers to PBFluids than Google. I believe this is from the ASN Kidney News now linking to my posts on their Facebook page. It’ll be interesting to see if the trend continues or if it was a one month aberration.

In response to the increasing importance of Facebook to my readership I have created a PBFluids facebook page. A new experiment with this medical blog unfolds. Exciting.

ASN Renal Week Day 2: Harrisons, UpToDate and the Renal Fellow Network

I grabbed dinner with Matt Sparks, one of the driving forces behind the Renal Fellow Network. It was a great dinner and, for me, was the first time I had a chance to talk shop with another blogger. Very fun. One of the things we discussed was the role of blogs in fellow education (this idea was matured a little with a discussion with Conal O’ Seaghdha, the other half of inspiration that drives RFN.

I believe that the primary educational material for medical education has gone through three phases. In the beginning was the medical text book. This was exemplified by Harrisons which rose to ascendancy not by being the first text book but by being the most innovative. Harrison unique innovation was arranging the sections by patient complaint rather than by disease. Here it is described in a fascinating history of the Harrison family of doctors:

PRINCIPLES OF INTERNAL MEDICINE would offer medical students a new way of approaching patients. The Cecil Textbook of Medicine, which had previously monopolized the American medical textbook market, took a less helpful approach. Its author, Russell Cecil, M.D., of Cornell Medical School in New York, had organized the textbook exclusively by disease, offering the definition, cause, symptoms and signs, methods of diagnosis, treatment, and prognosis for each one. This meant, of course, that a student must identify the patient’s disease before the book would offer help. Principles of Internal Medicine, on the other hand, began with the patient. Tinsley [Harrison] devoted the first third of his textbook to symptoms and signs experienced by sick people, which included shortness of breath, swelling of the feet, and so on-leading from there to understanding the disease. The text mirrored the ideal practice of a physician. The first edition of his book, published in 1950, proved an instant and major success.

The second phase was UpToDate. Burton “Bud” Rose (how can Wikipedia not have an entry on Dr. Rose?) crushed the primary medical references by creating a comprehensive, readable and searchable reference. He also cajoled his authors to make specific treatment recommendations so Up-To-Date is the only medical reference that actually teaches you to take care of patients. One of my friends used to complain that when she would invest the hours and tears needed to read a chapter of Harrison’s she would finish with tremendous knowledge and the ability to shine on atending rounds but have no idea how to treat her patient. UpToDate is not like that and has probably saved more lives than ACLS. I routinely ask prospective fellows about their reference of choice and for three years running every single one of them has answered “UpToDate.”

As good as UpToDate is it has some weaknesses. The EBM zealots take it to task for relying on expert opinion but I really don’t have too much concern about that (my previous post on that took them to task for saying they are EBM when they are really an expert opinion source. That’s why the list of author/editors is so important and impressive. They should be proud of what they are rather than claim to be EBM) .

What concerns me is UpToDate’s inability to escape its CD-ROM DNA. I have been a subscriber to UpToDate since I was a resident and Burton Rose was still answering the phone to deal with bad CDs and pimping the still incomplete product in the hallways of Renal Week. The ascendancy of the Internet has allowed UpToDate to get out of the CD shipping business but they still refuse to link out even when it makes overwhelming sense. All of their articles are fully referenced, but not with links to the primary data or the pubmed reference but to an internal database record of the reference.

I get that isn’t too hard to copy the PMID and drop it into google and that will pull the article, but why doesn’t UpToDate just link-out?
This goes for other area where a link out makes sense. Here is a segment of UpToDates card on “Overview of the management of CKD in Adults”
Wouldn’t you expect, reference 8 to take you to the K/DOQI guidelines. They are free and available on the internet. UpToDate instead links to their internal reference of the AJKD supplement with the original publication of the K/DOQI guidelines, which are behind an Elsevier pay wall.

It feels that the editorial rules for UpToDate were created in the CD-ROM era of the 90’s and haven’t been updated for the internet era.

I beleive that, just as Harrison had an openning in the Internal Medicine textbook space by using patient oriented complaints to organize his text and Rose had an openning by using search and a unique editorial style, the technology of today provides a niche. I want an interactive textbook of medicine with comments, a Facebook “Like” button, a way to connect with other practitioners and share treatment pearls.

The renal fellow network and other knowledge focused medical blogs are early progenitors of this future but some pretty large problems need to be addressed:

  • Organization. Blogs are reverse chronologic order by convention but given the random way that topics get posted, it makes for an unorganized structure. Solutions that are being used now include search and tags. Unfortunately, the tag clouds are so huge that they border on the useless. Search is good but a more structured table of contents and/or index would be great. I am delighted with the addition of the lecture and handout tabs on PBfluids, its a step that allows, at least me, to find things I have posted here before.
  • Expiration of old data. Medicine is always evolving. Today’s truth is tomorrow’s MMR-autism fiasco. These medical blogs need a way to mark expired information as such. A perfect example is the ATN trial by the VA and NIH. Prior to that study I was firmly in the more dialysis for acute kidney injury camp. After that was published I marked my acute kidney injury lecture, as being pre-ATN trial. This meant something to me, but my readers likely had no idea what that meant. How many other educational resources were obsoleted by that medical about-face?
Nephrology on demand looks like they are another group making good progress in this mission. Look out UpToDate, Web 2.0 has you in our sights.

– Posted using BlogPress from my iPad

Pregnant Gitelman Patient follow-up

Last week I posted on my pregnant patient who has Gitelman’s Syndrome. I am managing her with amiloride and a mixture of oral potassium and a mixture of oral and IV magnesium.

I received the following letter from a reader who went through a similar experience:

I am not a doctor, but I have Gitelman’s, and 16 years ago, was pregnant and ended up having to go on amiloride at the start of my second trimester, because my potassium and magnesium levels just tanked.   Being part of proving the track record on the viability of amiloride in pregnancy was a scary time, I tell you what.  Your patient’s experiences are similar to mine, though I did not require the magnesium IVs she apparently does during gestation. 

The great news is my son turned out healthy, and without any sign of potassium disorders of any sort, so far as we can tell at nearly 16.  He’s healthy, bright, nearly 6 ft – no indication at this time  that he was harmed in any way by the fetal exposure to amiloride. 

And another point to pass along – after he was born, I had my breast milk checked for traces of amiloride, and it passed whatever screens were applied. Therefore I nursed him for about 9 months, though I supplemented with formula.  It was an acceptable risk for me – since I know the literature does not record any data on nursing while on amiloride, I thought I’d pass along one uncontrolled anecdote for you to ponder. [Note: on further communication the patient clarified that she did not take amiloride during breast feeding

Anyway, please pass this information along to your patient – I am sure it will help her peace of mind to know another successful long term outcome.  It was a scary time for me, and without the widespread use of Internet back in 1995, the only piece of mind I got was by tracking down Dr. Almeida, who wrote the 1989 paper about Gitelman’s in pregnancy.  I spoke to one of his nurses to see if they could give me some info on long term followup on the baby, but the mother had disappeared after giving birth, and they had nothing to report.    

Best of luck to your patient – I know what she’s going through. 

Final note for your patient going forward: Getting my levels back up after the birth was a bit of a challenge, I recall.  But many of the details have been lost to time and the fog of war, I’m afraid – I will just say that the first month post-partum was pretty rough on me.

New Handout Tab.

Look up, just below General Jack Ripper and Group Commander Lionel Mandrake are two new tabs: Blog and Handouts. This fulfills a constant request I get from residents and medical students, how do I get a copy of your handouts. Clicking on Handouts will take you to an index with every handout in PDF and Pages format.

I plan on adding pages for presentations and the Fluid and Electrolyte Companion.

Enjoy.

NSAIDs and Chronic kidney disease. A great post at the Renal Fellow Network

One of the standard pieces of advice I give patients regarding chronic kidney disease is to avoid NSAIDs. However, not infrequently, patients have co-morbidities that demand NSAIDs. This usually triggers a conversation with my patients where I describe how ibuprofen can cause acute renal failure (I just took care of a new patient who developed RIFLE stage: Failure from a couple of doses of Mobic on top of stepped up ibuprofen use). I then explain that we extrapolate from the acute renal failure that NSAIDs are probably not beneficial in CKD and are likely harmful.

Lisa J Cohen at The Renal Fellow Network has a nice post on the lack of hard data implicating NSAIDs in the progression of CKD:

What about chronic renal dysfunction following long-term NSAID intake? In today’s medical environment, the evidence is weak. Prospective cohort studies in the Physicians’ Health Study (Rexrode et al, JAMA 2001) and the Nurses’ Health Study (Curhan et al, Arch Int Med 2004) failed to show an association between even high levels of cumulative lifetime NSAID intake and decrease in renal function.

My concern about these studies is the effect, we physicians have on the outcomes. Telling kidney patients to avoid ibuprofen and other NSAIDs is standard fare in CKD care. I’m sure these patients tend to use less ibuprofen and more acetaminophen, just as liver patients probably do the opposite. So educated patients with CKD will avoid NSAIDs but regardless of NSAID intake they will have a much higher progression to kidney related endpoints than their peers without a diagnosis of CKD. The epidemiologist sees a large cohort of acetaminophen users (my CKD patients) ending up with renal failure and sees that people with CKD use very little ibuprofen and may infere that acetaminophen causes kidney failure and ibuprofen is protective.

These are the type of questions that CRIC should be able to answer.

Nicest post about anything I’ve written on this blog

I got an e-mail from Lance Bukoff regarding the upcoming Boston Walk for PKD.

In my neighborhood the diseases that get the community involvement are breast cancer and special needs kids. Kidneys get almost no support though there is a great Zoo Kidney Walk by the NKF every Spring. Support the PKD walk.

Lance commented on my post about Sirolimus and ADPKD. I write this blog primarily for other medical professionals. I’m happy to have anyone read it, but the voice I use comes from my experience as a doctor and as a educator. Whenever a post gets picked up by patient groups I worry about how it will be perceived. I worry that I may have a glib when I mean to be funny or come across uncaring when I’m trying to be cooly scientific. I have had some close calls, but nothing has exploded, yet. This fear makes posts like Lance’s extra special.

Happy birthday PBFluids

PBfluids.com turned 2 years old on May 30th.

283 posts with another 24 drafts that have not yet seen the light of day.

283 posts in 730 days is one post every two and a half days. Not bad.