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Sabtu, 02 April 2011

Making a Stat Less Significant: Common Sense on "Side Effects" Lacking in Healthcare IT Sector

At my Mar. 27, 2011 post "Those Who Dismiss Healthcare (and Healthcare IT) Adverse Events Reports as Mere "Anecdotes" Have Lost - Supreme Court-Style" I wrote that the SCOTUS decided in MATRIXX INITIATIVES, INC., ET AL. v. SIRACUSANO ET AL. (link to PDF) that:

... We conclude that the materiality of adverse event reports cannot be reduced to a bright-line rule ... Because adverse reports can take many forms, assessing their materiality is a fact-specific inquiry, requiring consideration of their source, content, and context.

Wall Street Journal author and "Numbers Guy" Carl Bialik adds to that point in an article today "Making a Stat Less Significant" where he writes:

To determine whether a medical side effect is significant in an experiment requires knowing that every incidence of that side effect is being reported. Researchers can feel confident that is happening in a controlled clinical trial of a drug, but they can't be sure when a drug is being sold to the general public, as was the case with Zicam.

In other words, when one is not sure that every incident of a side effect is being reported, one should not cavalierly dismiss "anecdotal" reports of side effects, especially from reliable reporters.

The practictioners of Medical Informatics, along with the HIT Industry and its customers, appear to have failed in that regard with respect to clinical IT (electronic medical records, CPOE etc.) For years they have argued that these medical devices should not be regulated because that would "stifle innovation" and that reports of device adverse events were "anecdotal." Many in the field still make these arguments.

This view extends all the way up to the Director of the Office of the National Coordinator for Health IT, who glibly stated per the Aug. 2010 Huffington Post Investigative Fund article FDA, Obama Digital Medical Records Team at Odds over Safety Oversight that FDA's own reports of health IT related injuries and deaths were �anecdotal":

ONC director Blumenthal, the point man for the administration, has called the FDA�s injury findings �anecdotal and fragmentary.� He told the Investigative Fund that he believed nothing in the report indicated a need for regulation.

Those "injury findings" appear in an FDA Internal Memo made available by the aforementioned Huffington Post Investigative Fund and archived at the following link:

Internal FDA memorandum on HIT risks (PDF) to Jeffrey Shuren MD JD (Director, Center for Devices and Radiological Health). Health Information Technology (H-IT) Safety Issues. "This is an Internal Document Not Intended for Public Use." Feb. 23, 2010.

(
My description/summary of the memorandum is at my Aug. 2010 post "Internal FDA memorandum of Feb. 23, 2010 to Jeffrey Shuren on HIT risks. Smoking gun?")

That memorandum itself emphasizes how FDA's own knowledge of these events is partial due to reporting impediments and lack of knowledge of resources such as FDA's MAUDE database.

The known reports were likely "the tip of the iceberg" according to the Director of FDA�s Center for Devices and Radiological Health (CDRH) Jeffrey Shuren, MD, who also happens to be a lawyer.

As at the aforementioned "tip of the iceberg" link, at an HHS meeting of the HIT Policy Committee's Adoption/Certification Workgroup on February 25, 2010, Shuren testified:

... In the past two years, we have received 260 reports of HIT-related malfunctions with the potential for patient harm � including 44 reported injuries and 6 reported deaths. Because these reports are purely voluntary, they may represent only the tip of the iceberg in terms of the HIT-related problems that exist.

Even within this limited sample, several serious safety concerns have come to light. The reported adverse events have largely fallen into four major categories: (1) errors of commission, such as accessing the wrong patient�s record or overwriting one patient�s information with another�s; (2) errors of omission or transmission, such as the loss or corruption of vital patient data; (3) errors in data analysis, including medication dosing errors of several orders of magnitude; and (4) incompatibility between multi-vendor software applications and systems, which can lead to any of the above.


The problem with ignoring testimony and reports of health IT-related difficulties and dismissing them as "anecdotal" goes back to the issue of "knowing that every incidence of that side effect is being reported."

While FDA itself admits significant doubt about completeness of reporting in its memo, what's worse is that Koppel and Kreda at University of Pennsylvania wrote a paper from which one might conclude that the healthcare and health IT industries are themselves aligned to conceal health IT adverse events reports.

In their remarkable article Health Care Information Technology Vendors' "Hold Harmless" Clause - Implications for Patients and Clinicians, Journal of the American Medical Association, 2009;301(12):1276-1278, we learn that there is little motivation for device safety in the health IT industry:

Healthcare information technology (HIT) vendors enjoy a contractual and legal structure that renders them virtually liability-free��held harmless� is the term-of-art�even when their proprietary products may be implicated in adverse events involving patients. This contractual and legal device shifts liability and remedial burdens to physicians, nurses, hospitals, and clinics, even when these HIT users are strictly following vendor instructions...HIT vendors are not responsible for errors their systems introduce in patient treatment because physicians, nurses, pharmacists, and healthcare technicians should be able to identify�and correct�any errors generated by software faults. [In other words, they are expected to be clairvoyant when presented with erroneous or missing data - ed.]

We additionally learn that:

The significant disparity between buyers and sellers in knowledge and resources [about healthcare IT problems] is profound and consequential. Vendors retain company confidential knowledge about designs, faults, software-operations, and glitches. Their counsel have crafted contractual terms that absolve them of liability and other punitive strictures while compelling users� non-disclosure of their systems� problematic, or even disastrous, software faults.

In other words, health IT customers and users have a gag order imposed on them regarding software faults and defects.

I think any reasonable person would conclude there is great doubt as to whether "every incidence of [HIT side effects] is being reported."

I also pointed out in JAMA (link) and on my Drexel website (link) how agreeing to these terms caused hospital executives to violate both their fiduciary duties to their organization's workers as well as Joint Commission safety standards obligations.

(I've personally reported health IT defects I'd observed in hospitals where my relatives were patients to FDA's MAUDE database, discovering that the institution itself, whose officials I alerted to the problems, did not. An example is here.)

The above is all common sense.

Thus, the dismissal of reports of health IT-related patient injury, deaths, and "near misses" represents a failure of common sense, as well as a massive abrogation of fiduciary responsibilities and legal and ethical obligations among the Medical Informatics, health IT vendor, healthcare delivery, and healthcare regulatory sectors.

One end result is that it permits software like this to be mandated by state governments on hundreds of hospitals. One can only imagine the public, press and legal reactions if mission-critical software issues of this magnitude were brought forth after an aviation or nuclear power plant disaster.

The cavalier dismissals of HIT mishap reports clearly fall into the "knew, or should have known" category of negligence.

Plaintiff attorneys for patients injured or killed via HIT-related mishaps should take note.

-- SS

Note: my WSJ comment on this issue appears here.

Kamis, 18 November 2010

NEJM: Medical Malpractice Liability in the Age of Electronic Health Records

As I wrote on Nov. 11 at Report of an AMIA special task force on challenges in ethics, safety, best practices, and oversight regarding HIT :

This report may be part of a trend ... It appears that the views on healthcare IT safety, ethics, management practices, etc. appearing on the Healthcare Renewal blog and on my once-controversial academic health IT website "Contemporary Issues in Medical Informatics: Common Examples of Healthcare Information Technology Difficulties" (started in 1999) are now becoming mainstream.

Notable "events" continue to occur rapidly in the literature on clinical IT. Another example of the trend I noted appeared today, this time in the New England Journal of Medicine:

Medical Malpractice Liability in the Age of Electronic Health Records
Sandeep S. Mangalmurti, M.D., J.D., Lindsey Murtagh, J.D., M.P.H., and Michelle M. Mello, J.D., Ph.D.
N Engl J Med 2010; 363:2060-2067 (Nov. 18, 2010)

From the Department of Medicine, New York University Medical Center, New York (S.S.M.); and the Department of Health Policy and Management, Harvard School of Public Health, Boston (L.M., M.M.M.).

The above hyperlink takes you, as of this writing, to full text and an available PDF.

My comments on this article are that:

I am happy to see it appear -- as it shows that critical thinking about HIT has reached the top echelons of the medical literature.

However, the new paper itself appears to wander a bit, and seems to add little to the much more comprehensive article:

"E-Health Hazards: Provider Liability and Electronic Health Record Systems." Sharona Hoffman and Andy Podgurski. Berkeley Technology Law Journal (2010).
Available at: http://www.btlj.org/data/articles/24_4/1523_Hoffman.pdf

(Sharona Hoffman JD is Professor of Law and Bioethics, Co-Director of Law-Medicine Center, Case Western Reserve University School of Law, and Andy Podgurski PhD is Professor of Electrical Engineering and Computer Science, Case Western Reserve University.)

The new article does reference the Hoffman/Posgurski article once at [32].

The new NEJM article also seems to display biases. For instance, it states:

EHR users overwhelmingly report improvement in the quality of care they provide. [29]


Reference [29] is this article:

29. DesRoches CM, Campbell EG, Rao SR, et al. Electronic health records in ambulatory care � a national survey of physicians. N Engl J Med 2008;359:50-60.

From that article:

In late 2007 and early 2008, we conducted a national survey of 2758 [ambulatory care] physicians, which represented a response rate of 62%. Using a definition for electronic health records that was based on expert consensus, we determined the proportion of physicians who were using such records in an office setting and the relationship between adoption and the characteristics of individual physicians and their practices.

... Four percent of physicians reported having an extensive, fully functional electronic records system, and 13% reported having a basic system ... Physicians reported positive effects of these systems on several dimensions of quality of care and high levels of satisfaction ... Physicians who use electronic health records believe such systems improve the quality of care and are generally satisfied with the systems. However, as of early 2008, electronic systems had been adopted by only a small minority of U.S. physicians, who may differ from later adopters of these systems.

I would therefore relate that the blanket statement that "EHR users overwhelmingly report improvement in the quality of care they provide" is overstated.

It might have been more appropriate to write that:

"In one study of ambulatory care physicians, a minority of which at present were using EMR's at various levels of sophistication, users reported improved care."

Also, other literature refuting the premise that physicians report improved care could (should) have been considered, such as (in just one example) the 2008 survey reported upon by the American Association of Physicians and Surgeons (AAPS):

PHYSICIAN ATTITUDES & ADOPTION OF HEALTH INFORMATION TECHNOLOGY (PDF)

I wrote about that survey at this link. (I note that the AAPS is a conservative group; NYU and Harvard tend strongly towards the left; one wonders if the NEJM authors would have considered mentioning the AAPS survey, even if they did know of it.)

More potential biases appear in the conclusion of the new NEJM paper:

... In evaluating whether to invest in EHR technologies, provider organizations must weigh the substantial up-front cost and possible risks against the potentially sizeable, but uncertain, long-run benefits.[55]

[55] DesRoches CM, Campbell EG, Vogeli C, et al. "Electronic health records� limited successes suggest more targeted uses." Health Aff (Millwood) 2010;29:639-46.


From [55]:

... We examined electronic health record adoption in U.S. hospitals and the relationship to quality and efficiency. Across a large number of metrics examined, the relationships were modest at best and generally lacked statistical or clinical significance. However, the presence of clinical decision support was associated with small quality gains. Our findings suggest that to drive substantial gains in quality and efficiency, simply adopting electronic health records is likely to be insufficient. Instead, policies are needed that encourage the use of electronic health records in ways that will lead to improvements in care.


Using [55] as an example of "potentially sizable but uncertain long-run benefits" is not how I would have interpreted the Health Affairs Millwood article.

The NEJM paper authors then write in their conclusion:


... The malpractice implications of EHRs should be included in future discussions of risks and benefits. [Agreed - ed.] Although there is currently little research quantifying the risks and benefits with respect to liability, we are optimistic that they will ultimately weigh in favor of the implementation of EHRs.


They do not state how or why they are optimistic, nor provide corroborating references for that opinion.

Is it revealing of bias and probably not a good practice, as far as I am concerned, to put what appears as wishful thinking -- especially where one states that there is little research supporting the optimism -- in the conclusion of a scientific paper.

In summary, while I feel the paper has a number of flaws, I am glad to see the topic of potential healthcare IT malpractice liability addressed in one of the top journals in medicine.

-- SS