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Practice tips. Putting the "Palm" into practice.


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VOL 48: JANUARY • JANVIER 2002 Canadian Family Physician Le Médecin de famille canadien 43

clinical challenge

défi clinique

Practice Tips

Michelle Greiver, MD, CCFP

Putting the “Palm” into practice


ne of the main barriers to my ability to apply evidence consistently to my patients’ care is the fact that I cannot always remember all the necessary infor- mation. Many clinical practice guidelines contain complex rules that are difficult to remember, let alone implement, at a patient’s bedside; for example, computed tomography of the brain is not recom- mended in investigating dementia unless one of 11 criteria is met.1

Rapid information retrieval

One solution I have for this problem is to

store nuggets of information in my small, hand-held computer, my “Palm.” The information on ordering CT in dementia, for example, is stored in a simple data- base, “List” (http://www.magma.ca/~roo). I can change my practice because I have the information in my hand, and because I do, I will likely order more appro- priate imaging for my patients with dementia.

Many diagnoses depend on meeting clinical crite- ria, for example, chronic fatigue syndrome.2 Some of those criteria are now stored on my Palm, in List. It is not unusual for me to retrieve the information and go over it with my patient. Psychiatric diagnoses are based on Diagnostic and Statistical Manual of Mental Disorders, 4th edition, criteria. I have those stored as well, which makes structured interviews a little easier.

Managing drug information I use a drug database (ePocrates) frequently to check dosages, drug interac- tions, or recommendations for use during pregnancy. I have some reservations about this program, however, because

it collects information about which drugs I look up, and these data can be made available for commercial and marketing purposes. My provincial drug plan reim- burses some drugs on a limited-use basis, provided certain numerical codes are entered on the limited-use prescription pad; I store the codes in ePocrates, as there is a section attached to each drug for notes. I also use this method for entering other information about drugs, such as recommended laboratory tests for patients taking methotrexate.3 Another useful resource is the Griffith 5-minute Consult (http://www.skyscape.com/

products/fmcc.htm). It allows physicians to look up information quickly on rare or unfamiliar conditions.

This program, however, requires more than 3 MB of memory; a typical Palm’s memory contains 8 MB.

Risk stratification at the bedside

The speed at which a Palm can be used makes risk stratification at the bedside possible. Cardiovascular risk can be quickly calculated using Framingham data, and a tap on the screen can show patients how much their risk decreases if they quit smoking. I use the STAT cardiac calculator (http://www.statcoder.com) for this.

Offering a younger woman advice about screening mammography if she has a relative with breast cancer can be difficult.4 I can now use the Gail model5 to cal- culate risk of breast cancer in the next 5 years with Medrules (http://pbrain.hypermart.net/medrules.html) and offer patients a possibly bet- ter assessment of personal risk. A recent guideline sup- ported counseling women about chemoprevention with tamoxifen if they are at high risk of breast cancer; high Dr Greiver practises family medicine in North York, Ont.

clinical challenge

défi clinique

We encourage readers to share some of their practice experi- ence: the neat little tricks that solve difficult clinical situa- tions. Canadian Family Physician pays $50 to authors upon publication of their Practice Tips. Tips can be sent by mail to Dr Tony Reid, Scientific Editor, Canadian Family Physician, 2630 Skymark Ave, Mississauga, ON L4W 5A4; by fax (905) 629-0893; or by e-mail tony@cfpc.ca.


44 Canadian Family Physician Le Médecin de famille canadien VOL 48: JANUARY • JANVIER 2002 VOL 48: JANUARY • JANVIER 2002 Canadian Family Physician Le Médecin de famille canadien 47

clinical challenge

défi clinique

risk was defined as Gail risk > 1.66%

over 5 years.6

My pregnant patients’ data is stored in PregPro (http://www.thenar.

com/pregcalc). The program stores their last menstrual period, gesta- tion age, and estimated date of con- ception and offers information on expected weight gain, ultrasound measurements, and recommended laboratory investigations. This pro- gram is much quicker and more useful than the pregnancy wheel. I also often use a medical calculator, Medmath (http://www.stanford.edu/

~pmcheng/medmath/); this makes cal- culations, such as body mass index, very quick.

My patients do not seem to mind that I look up information in this way;

several have commented favourably,

especially when I am able to search quickly for drug interactions. I can sometimes share the information with patients by showing them the data on my Palm, although this is not always practical because of its small screen.

I find that having information in the palm of my hand can help me practise evidence-based medi- cine at the bedside. I think this is a useful and practical way to over- come at least some of my own lim- itations in clinical judgment,7 by providing a rapid way of checking for medication errors, fast compu- tational tools for risk assessment, and memor y aids. I think that the medical potential of this instru- ment is just beginning to be dis- covered.


1. Patterson CJ, Gauthier S, Bergman H, Cohen CA, Feightner JW, Feldman H, et al. The recognition, assessment and management of dementing disorders:

conclusions from the Canadian Consensus Conference on Dementia. Can Med Assoc J 1999;160(Suppl 12):1-15.

2. Fukuda K, Straus SE, Hickie I, Sharpe MC, Dobbins JG, Komaroff A. The chronic fatigue syndrome: a com- prehensive approach to its definition and study. Ann Intern Med 1994;121:953-9.

3. Lacaille D. Rheumatology: 8. Advanced therapy. Can Med Assoc J 2000;163(6):721-8.

4. Lucassen A, Watson E, Eccles D. Advice about mam- mography for a young woman with a family history of breast cancer. BMJ 2001;322:1040-2.

5. Armstrong K, Eisen A, Weber B. Assessing the risk of breast cancer. N Engl J Med 2000;342:564-71.

6. Levine M, Moutquin J-M, Walton R, Feightner J.

Chemoprevention of breast cancer: a joint guideline from the Canadian Task Force on Preventive Health Care and the Canadian Breast Cancer Initiative’s Steering Committee on Clinical Practice Guidelines for the Care and Treatment of Breast Cancer. Can Med Assoc J 2001;164(12):1681-90.

7. Redelmeier DA, Ferris LE, Tu JV, Hux JE, Schull MJ.

Problems for clinical judgement: introducing cognitive psychology as one more basic science. Can Med Assoc J 2001;164(3):358-60.

clinical challenge

défi clinique


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