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ASA NEWSLETTER
 
 
September 2002
Volume 66
Number 9
 

Monitoring Those Who Monitor

James B. Eisenkraft, M.D., Chair
Committee on Equipment and Facilities


The Committee on Equipment and Facilities identifies and monitors standards-writing activities in regard to equipment and facilities of concern to the ASA membership. Some committee members serve as ASA liaisons to the major standards-writing organizations, in particular, the American Society for Testing and Materials (ASTM) and the National Fire Protection Association (NFPA). Activities at the International Standards Organization (ISO) and the European Committee for Standardization (Comité Européan de Normalization [CEN] and CEN's Healthcare Forum [CheF]) are monitored via United States Technical Advisory Groups (US TAG) to ISO Technical Committees (TC).

ASTM is a not-for-profit organization that "provides a forum for producers, users, ultimate consumers and those having a general interest (representatives of government and academia) to meet on common ground and write standards for materials, products, systems and services." The ASTM Committee on Anesthetic and Respiratory Equipment is designated F-29. One of the better-known ASTM voluntary consensus standards is F1161.88, titled Standard Specification for Minimum Performance and Safety Requirements for Components and Systems of Anesthesia Gas Machines. It describes "the requirements to be used in the design of gas machines for human use in order to enhance the safety of the patient and operator." Approved in 1988 and reapproved in 1994, it defined many of the safety features that we have come to expect from our modern anesthesia machines. In 2000, F1161.88 was superseded by ASTM F1850.00, Standard Specification for Particular Requirements for Anesthesia Workstations and Their Components, which defines minimum safety requirements for an anesthesia workstation. The latter is defined as a system for administration of anesthesia to patients, comprising anesthesia gas supply device, anesthesia ventilator, monitoring devices and protection devices.

Although ASTM standards such as F1850 are a consensus of producers, users and other interested parties in the United States, it is not a requirement that all new devices conform to such standards. However, an informed consumer would likely prefer to purchase new equipment that did meet or exceed the specifications of the most recent standard.

Recognizing that the anesthesia equipment market is becoming global (and less national), ASTM began in 2001 to reorganize and sought to adopt international standards (ISO) with a one-page cover sheet of American deviations from ISO. Similarly, the ASTM F-29 Committee will be able to submit their standards to ISO for "fast-track" adoption. This should eliminate duplication of effort in writing a standard, although ASTM F-29 retains the option of publishing an American standard in the event that the ISO standard is unacceptable.

In 2001, the European organization CEN/CHeF issued a report on Luer connectors. There had been several incident reports of cross-connects of different systems that used such connectors; mainly enteral feeding being given intravenously and gas being pumped intravenously. The CEN/CHeF report stated that Luer connectors should be used only for intravenous systems. While work on the potential hazards of Luer misconnections is ongoing, the most likely change expected at this time will be that of changing the exhaust port of the respiratory gas monitor to a sleeved male Luer connector and some labeling requirements.

ASTM Committee F-29 on Anesthetic and Respiratory Equipment proposes to bolster patient safety by establishing standard requirements for devices that open airways in supraglottic areas of the throat during surgery. The Food and Drug Administration (FDA) Manufacturer and User Facility Device Experience Database (CDRH MAUDE) includes more than 500 reports of adverse events involving supraglottic airway-like medical devices. Examples of supraglottic devices are laryngeal-mask airways, cuffed-oropharyngeal airways, pharyngeal airways, laryngeal airways and seals, and glottic/laryngeal airways and seals not regulated by other tracheal or tracheostomy tubes, oral/nasal airway, laryngoscope or anesthesia-mask standards. The F-29 committee has invited producers and users of these devices, members of US TAG to ISO TC 121 and others to develop a "Standard for Supraglottic Airways." The standard will provide essential requirements for the safe use of devices that open, secure and seal the supraglottic area (above the larynx) typically during anesthetic administration, providing unobstructed airways in patients who are breathing spontaneously or whose lungs are being ventilated. A committee task group will draft the standard as an informational review of current literature and best practices, describing general essential requirements with a suggested risk assessment and specific design attributes when required in the risk assessment.

Other equipment on which standards work by ASTM is ongoing includes nitric oxide delivery devices, respiratory gas monitors, sleep apnea devices, blood/fluid warmers, pulse oximeters and operating room fire safety equipment.

NFPA publishes criteria to minimize the hazards of fire, explosion and electricity in health care facilities. In this past year, NFPA has issued updated 2002 editions of both NFPA 99 – Standard for Health Care Facilities and NFPA 70 – National Electrical Code.® NFPA 115 – Recommended Practice on Laser Fire Prevention, published in 1999 is currently being revised with the intention of publishing a new standard in 2003.

The ASA Committee on Equipment and Facilities has undertaken to review and possibly revise the 1988 ASA statement "Policy for Assessing Obsolescence" in relation to anesthesia gas delivery systems (machines). In this litigious yet cost-sensitive era, there is concern as to the appropriateness or advisability of the use of older anesthesia machines and ventilators that may not meet even the ASTM F1161.88 standard. Some believe that the use of such "older" machines, perhaps in office-based anesthesia practice, may be dangerous. With the recent introduction of the electronic anesthesia workstation, the Committee on Equipment and Facilities also is revisiting the generic Anesthesia Apparatus Checkout Recommendations, published by the FDA in 1993.

The Committee on Equipment and Facilities serves a very important function in determining optimum anesthesia equipment and facilities as our specialty continues to evolve. A panel on anesthesia equipment issues is scheduled to be held on Monday, October 14, 2002, from 9-11:30 a.m. at the ASA Annual Meeting in Orlando, Florida.

In October 2002, Daniel E. Supkis, Jr., M.D., will become chair of this committee. He is ideally qualified for this position, having a longstanding interest in standards and equipment and serving as secretary of ASTM Committee F-29. I would encourage anyone with an interest in anesthesia equipment or facilities to become involved with the Committee on Equipment and Facilities and the standards organizations described above. Information on membership in ASTM can be obtained by visiting its Web site at . The F-29 committee homepage address is: < http://www.astm.org/COMMIT/COMMITTEE/F29.htm >.

Input from practicing anesthesiologists is essential to future success.



    James B. Eisenkraft, M.D., is Attending Anesthesiologist, Mount Sinai Medical Center, New York, New York.

 

 


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