Lessons Learned from Anesthesia EMRs

Several years ago one of the hospitals where I operate spent 6 figures on an anesthesia EMR system.  After several months and a huge amount of money the whole thing was scrapped because it was so cumbersome to use.  They have not tried again.

A few weeks ago the anesthesia group that covers our surgery center got an EMR.  The product is called Anescan and apparently has many successful installs.  It runs on Windows 7 tablets that communicate with a central server.  Needless to say I was curious to see how this system differed from the failed system I had seen years ago.  What I learned was very interesting.

Medical record keeping in anesthesia is different from all other medical specialties.  The job includes monitoring vital signs constantly and documenting them in the anesthesia record every few minutes.  It is a task that begs to be automated.  Such technology would presumably free the anesthesiologist from mundane repetitive documentation, allowing more efficient and effective monitoring of the patient.   The necessary technology has been available for years and was used in the failed hospital system from years ago.

I was surprised to learn that Anescan avoids that technology.  A conversation with the Anescan rep revealed that is was precisely that technology which caused earlier systems to fail.  It’s easy to measure blood pressure, heart rate, respiratory rate, and blood oxygen level and push that data to an EMR.  The problem is that the data are often riddled with artifact.  If an EKG lead or pulse oximeter comes loose, or if the surgeon leans on the arm-mounted blood pressure cuff, it is not unusual to get an automated pulse or blood pressure of zero.  The anesthesiologist / anesthetist can easily recognize what is happening, fix the monitors and record accurate vital signs.  This often happens several times during a case and is no big deal.

The automated system makes it much worse.  By the time the bad data are recognized the automated system has already pushed that zero pulse and BP to your EMR.  Now the anesthesiologist / anesthetist has to open some kind of editing function in the EMR and delete, edit, or explain away the false readings…AND at the same time troubleshoot the monitors that sent the bad data in the first place…AND by the way your patient is still asleep and you can’t stop watching him.  AND you only have a couple of minutes to get caught up before the monitors send the next the next set of (? bad) vital signs to the EMR.  The potential downward spiral is easy to see.

Anescan avoids this problem.  The tablet PC presents an image of a standard anesthesia paper record with the patient demographics and other data already in place as structured data.  Vital signs are recorded with “digital ink.”   Use the stylus to record vital signs on the form, on the tablet.  When the case is complete the form images are sent to the server for centralized record keeping and billing.   A paper copy is printed for the surgery center chart.  This is an elegant solution that automates only those parts of record keeping where it is practical.

Someday the artifact problem will be solved either through better monitors or better error recognition within the EMR.  But today this serves as yet another example of too much IT and automation in health care causing more problems than it solves.

About the author

Dr. Michael Koriwchak

Dr. Michael Koriwchak

Dr. Michael J. Koriwchak received his medical degree from Duke University School of Medicine in 1988. He completed both his Internship in General Surgery and Residency in Otolaryngology-Head and Neck Surgery at Vanderbilt University Medical Center. Dr. Koriwchak continued at Vanderbilt for a fellowship in Laryngology and Care of the Professional Voice. He is board certified by the American Board of Otolaryngology-Head and Neck Surgery.
After training Dr. Koriwchak moved to Atlanta in 1995 to become one of the original physicians in Ear, Nose and Throat of Georgia. He has built a thriving practice in Laryngology, Care of the Professional Voice, Thyroid/Parathyroid Surgery, Endoscopic Sinus Surgery and General Otolaryngology. A singer himself, many of his patients are people who depend on their voice for their careers, including some well-known entertainers. Dr. Koriwchak has also performed thousands of thyroid, parathyroid and head and neck cancer operations.
Dr. Koriwchak has been working with information technology since 1977. While an undergraduate at Bucknell University he taught a computer-programming course. In medical school he wrote his own software for his laboratory research. In the 1990’s he adapted generic forms software to create one the first electronic prescription applications. Soon afterward he wrote his own chart note templates using visual BASIC script. In 2003 he became the physician champion for ENT of Georgia’s EMR implementation project. This included not only design and implementation strategy but also writing code. In 2008 the EMR implementation earned the e-Technology award from the Medical Association of Georgia.
With 7 years EMR experience, 18 years in private medical practice and over 35 years of IT experience, Dr. Koriwchak seeks opportunities to merge the information technology and medical communities, bringing information technology to health care.

1 Comment

  • I viewed AneScan at a conference, and it certainly seems to be a reasonable application. I believe fears about artifactual data are mostly unfounded.

    Almost 20 years ago, one of the first Anesthesia EMRs, Arkive, handled this situation very simply. The was a quick key to denote the values as artifact (a capital “A”) which was diplayed on the screen & printed on the Anesthesia record. Additionally, the provider could enter manual values at any time, as well as entering a note if desired.

    I haven’t found out how other systems note data, but for continuous vital signs (HR, SpO2, EtCO2)it took at data point every 2 seconds, then calculated & stored the median value. Thus, it would require almost 30 seconds of erroneous data – assuming other values were normal – to create a false data point, for one minute. We rarely had issues with electrocautery artifact due to this formula.

    Arkive, though the company went out of business quickly, ran at my facility nearly flawlessly for over 6 years until the Anesthesia machines were replaced.

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