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Computerized doctors' orders reduce medication errors
June 28, 2007Doctors are famous for sloppy scribbling - and handwritten prescriptions lead to thousands of medication errors each year. Electronics to the rescue: U.S. hospitals that switched to computerized physician order entry systems saw a 66 percent drop in prescription errors, according to a new review of studies.
Illegible handwriting and transcription errors are responsible for as much as 61 percent of medication errors in hospitals. A simple mistake such as putting the decimal point in the wrong place can have serious consequences because a patient's dosage could be 10 times the recommended amount.
Drugs with similar names are another common source of error, such as the pain medication Celebrex and the antidepressant Celexa, or the tranquilizer Zyprexa and the antihistamine Zyrtec.
"These medication errors are very painful for doctors, as well as the patients. Nobody wants to make a mistake," said Tatyana Shamliyan, lead review author and a research associate at the University of Minnesota School of Public Health.
The review appears online in the journal Health Services Research.
The University of Minnesota researchers looked at 12 studies that compared medication errors with handwritten and computerized prescriptions from in-hospital doctors. Nearly a quarter of all hospital patients experience medication errors, a rate that has increased from 5 percent in 1992, according to the study.
Medication errors include prescribing the wrong drug or incorrect dosage or administering a drug at the wrong time or not at all. "Most errors typically go undetected unless they led to an adverse event," said review co-author Robert Kane.
In addition to improving patient safety, computerized systems make life easier for pharmacists. "They don't have to decipher the chicken scratch," said Karl Gumpper, director of the pharmacy informatics and technology section of the American Society of Health-System Pharmacists, based in Bethesda, Md. Pharmacists frequently have to call the prescribing doctor or interview the patient because of problems in deciphering handwriting.
Currently, only about 9 percent of hospitals have computerized prescription systems. Some hospitals have stand-alone systems, while others have computerized prescriptions as part of an electronic medical record system.
Each year, more health systems implement computerized order entry systems and more will do so as electronic medical records become more common. "It's a growth industry," Kane said.
A small handful of institutions, including Brigham and Women's Hospital in Boston and Vanderbilt University Medical Center in Nashville, have been leaders in integrating computerized prescriptions, experts say.
It takes 12 to 36 months to implement computerized prescribing system, Gumpper said. Currently, no industry standard system exists. Some hospitals use systems created in-house, while others use commercial products created by companies such as Epic Systems, based in Verona, Wis. or McKesson Corp., based in San Francisco.
Some systems guide doctors through the prescription process, asking questions that might help avoid errors. Some even use voice recognition.
There are two reasons why more hospitals have not switched to electronic prescription systems, says Arthur Levin, director of the Center for Medical Consumers in New York. First, "Physicians, like most of us, don't like change," he said. In addition, electronic prescription systems are costly and difficult to integrate into the complex, sometimes-chaotic hospital structure.
Regardless, in hospitals with a computerized prescription system, the number of medication errors dropped, especially among adult patients. However, the rate of one type of error -prescribing the wrong drug - did not decrease, and in five studies, the number of adverse events from drug errors did not decrease.
Each year, more than one-half million patients sustain injuries or die in hospitals from adverse events, according to the study.
In hospitals with a higher number of medication errors - more than 12 percent - computerized systems made the biggest improvement, the researchers found.
Medical schools in the United States rarely address penmanship. It is the same in Russia, says Shamilyan, who studied there. However, at least one medical school in the United States, Indiana University in Indianapolis, teaches penmanship to students in hopes of avoiding errors.
As nearly every industry becomes more computerized, Levin says the doctor's prescription pad should go the way of scarification used in the 19th century for bloodletting. "Written and verbal orders should be a no-no," he said.
Center for the Advancement of Health
"These medication errors are very painful for doctors, as well as the patients. Nobody wants to make a mistake," said Tatyana Shamliyan, lead review author and a research associate at the University of Minnesota School of Public Health.
The review appears online in the journal Health Services Research.
The University of Minnesota researchers looked at 12 studies that compared medication errors with handwritten and computerized prescriptions from in-hospital doctors. Nearly a quarter of all hospital patients experience medication errors, a rate that has increased from 5 percent in 1992, according to the study.
Medication errors include prescribing the wrong drug or incorrect dosage or administering a drug at the wrong time or not at all. "Most errors typically go undetected unless they led to an adverse event," said review co-author Robert Kane.
In addition to improving patient safety, computerized systems make life easier for pharmacists. "They don't have to decipher the chicken scratch," said Karl Gumpper, director of the pharmacy informatics and technology section of the American Society of Health-System Pharmacists, based in Bethesda, Md. Pharmacists frequently have to call the prescribing doctor or interview the patient because of problems in deciphering handwriting.
Currently, only about 9 percent of hospitals have computerized prescription systems. Some hospitals have stand-alone systems, while others have computerized prescriptions as part of an electronic medical record system.
Each year, more health systems implement computerized order entry systems and more will do so as electronic medical records become more common. "It's a growth industry," Kane said.
A small handful of institutions, including Brigham and Women's Hospital in Boston and Vanderbilt University Medical Center in Nashville, have been leaders in integrating computerized prescriptions, experts say.
It takes 12 to 36 months to implement computerized prescribing system, Gumpper said. Currently, no industry standard system exists. Some hospitals use systems created in-house, while others use commercial products created by companies such as Epic Systems, based in Verona, Wis. or McKesson Corp., based in San Francisco.
Some systems guide doctors through the prescription process, asking questions that might help avoid errors. Some even use voice recognition.
There are two reasons why more hospitals have not switched to electronic prescription systems, says Arthur Levin, director of the Center for Medical Consumers in New York. First, "Physicians, like most of us, don't like change," he said. In addition, electronic prescription systems are costly and difficult to integrate into the complex, sometimes-chaotic hospital structure.
Regardless, in hospitals with a computerized prescription system, the number of medication errors dropped, especially among adult patients. However, the rate of one type of error -prescribing the wrong drug - did not decrease, and in five studies, the number of adverse events from drug errors did not decrease.
Each year, more than one-half million patients sustain injuries or die in hospitals from adverse events, according to the study.
In hospitals with a higher number of medication errors - more than 12 percent - computerized systems made the biggest improvement, the researchers found.
Medical schools in the United States rarely address penmanship. It is the same in Russia, says Shamilyan, who studied there. However, at least one medical school in the United States, Indiana University in Indianapolis, teaches penmanship to students in hopes of avoiding errors.
As nearly every industry becomes more computerized, Levin says the doctor's prescription pad should go the way of scarification used in the 19th century for bloodletting. "Written and verbal orders should be a no-no," he said.
Center for the Advancement of Health
Flaws in the barcoded technology used to reduce medication administration errors identified
In the first study of its kind, researchers led by The University of Pennsylvania School of Medicine's Ross Koppel, Ph.D. studied how hospital nurses actually use bar-coded technology that matches the right patient with the right dose of the right medication.
Drug labels are prescriptions for mistakes
A new study to assess understanding of five common prescription label instructions found that patients had difficulty comprehending how much and how often the medication should be taken.
Junior Doctors Need Training To Reduce Prescribing Errors
A qualitative UK study in this week's issue of THE LANCET suggests that prescribing errors in hospitals are a consequence of poor understanding of drug prescribing. Authors of the study conclude that junior doctors should be trained in the principles of drug dosing, and that medical staff should promote a working culture which recognises the importance of prescription writing. Errors made during drug prescription are the most common type of avoidable medication error. The UK Department of Health is committed to reducing the number of serious errors involving prescribed drugs by 40% over the next three years; similar initiatives have been proposed in the USA. Theories of human error (used to
CHANGES IN PROCESSES CAN SUBSTANTIALLY REDUCE ERROR
Nightingale and colleagues from the Department of Medicine at the University of Birmingham describe a rules based system for the prescribing and recording of drugs given to patients. The system can be accessed from the bedside through wireless terminals. During 11 months of monitoring, the system prevented 58 unsafe prescriptions and gave over 700 high level warnings. Complete and legible prescriptions have eliminated transcription errors and most of the staff on the 64 bed renal unit, where the system was tested, felt that it was better than handwritten prescriptions.
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