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Biomedical subjects

S S Lloyd

Publications and source records attributed to S S Lloyd.

6 recordsLinked to original sources
PubMed1997

The effects of automated encoders on coding accuracy and coding speed.

Encoded data on diagnoses and procedures are put to a broad range of uses. Coding accuracy and speed are imperative. One method that coding experts have recommended to improve coding accuracy and speed is automated encoders. The article describes the effect of automated encoders on coding accuracy and speed when used by trained coding staff. A study involving six Veterans Administration medical centers found that, overall, coding accuracy improved 19.4 percent after implementation of encoding software. The effect on coding speed, however, depended on the system set-up, with some set-ups actually reducing the number of discharges coded per day.

Abstracting and Indexing↗
PubMed1993

Free radicals and septic shock in primates: the role of tumor necrosis factor.

The role of free radicals in septic-shock-associated tissue injury and the mechanisms underlying the generation of free radicals in sepsis was investigated in a primate model using electron spin resonance (ESR) spectroscopy and spin-trapping techniques paired with physiological measurements. Baboons were administered the spin trap, 5,5-dimethyl-1-pyrroline N-oxide (DMPO) during infusions of live Escherichia coli (E. coli) with or without challenge with tumor necrosis factor (TNF). ESR spectra suggesting the trapping of carbon-centered and oxygen-centered radicals were detected in liver lipid extracts of E. coli infused animals which exhibited pathophysiological changes indicative of sepsis. In animals demonstrating a toxic response to E. coli. TNF challenge appeared to intensify the ESR signal observed. These data provide evidence of free radical production during sepsis and suggest a role for TNF in the production of these radicals.

Animals↗
PubMed1992

Automated information systems provide health information management support to veterans' healthcare.

The Veterans Health Administration has implemented a comprehsnsive DHCP which supports the VA healthcare system at both local and national levels. Numerous clinical and management modules have been developed; an overview was given of selected applications impacting health information managers. Continuing development includes an automated clinical record and expanded electronic data exchange.

Databases, Factual↗
PubMed1985

Physician and coding errors in patient records.

The Veterans Administration's discharge abstract system was studied to identify error frequency, source, and effect in five Veterans Administration hospitals. We reviewed 1,829 medical records from 21 services for concordance with the abstract; sampling provided 95% confidence for each service. Of these records, 1,499 (82%) differed from the abstract in at least one item. Of 20,260 items, 4,360 (22%) were incorrect, with three error sources: physician (62%), coding (35%), and keypunch (3%). We projected 2.14 physician and 0.81 coding errors in the average abstract. Eighty-nine percent of projected physician errors were failures to report a procedure or diagnosis. Coding was subjective and errors were synergistic with physician errors. We projected that correction of errors would change 19% of the records for diagnosis-related group purposes and substantially increase future resource allocation. This effect varied considerably by service.

Abstracting and Indexing↗