HCS/451 Week 1: Quality-Improvement Concepts, sample paper

What Quality Means in a Colonoscopy Suite: Structure, Process and Outcome at an Ambulatory Endoscopy Center Where One Physician Finds Half as Many Adenomas as Another

[Student Name]

University of Phoenix

HCS/451: Health Care Quality Management and Outcomes Analysis

Week 1 Assignment

[Instructor Name]

[Date]

The endoscopy center, physicians and figures are a composite written for a model paper.

A composite ambulatory endoscopy center owned by a nine-physician gastroenterology group performs about 11,500 procedures a year, most of them colonoscopies. Patients rate it highly: the parking is easy, the staff are kind and procedures start on time. By the measures patients can see, it is an excellent center. But the measure patients cannot see, how many precancerous polyps each physician finds, varies more than twofold from one physician to the next. This paper introduces the center, which will be followed through this course, and uses core quality concepts to explain why that variation is the center's most important quality problem.

Defining Quality

A widely used definition treats quality as the degree to which health services raise the likelihood of the outcomes patients want and match current professional knowledge, and the same report named six aims for health care: safe, effective, patient-centered, timely, efficient and equitable (Institute of Medicine, 2001). The six aims show that quality has several dimensions that can move independently. The endoscopy center performs well on timeliness and patient-centeredness. The open question is effectiveness: whether each colonoscopy does what it is meant to do, which is to find and remove precancerous polyps.

Structure, Process and Outcome

Donabedian (1988) argued that anyone judging care can look at three things, structure, process and outcome, and that they connect: good structure increases the likelihood of good process, and good process increases the likelihood of good outcomes.

Structure

The center's structure includes four procedure rooms with current high-definition colonoscopes, board-certified gastroenterologists, registered nurses trained in moderate sedation and an electronic endoscopy reporting system. Its structure is strong; nothing in it explains why results differ between physicians who use the same rooms and equipment.

Process

Process measures describe what happens during the procedure. For colonoscopy, the most important include the adenoma detection rate, the share of screening colonoscopies in which at least one adenoma is found; the cecal intubation rate, the share of procedures in which the physician reaches the start of the colon; the adequacy of bowel preparation; and withdrawal time, the time spent carefully examining the colon on the way out. At the center, cecal intubation exceeds 97% for every physician, and bowel preparation is adequate in about 88% of procedures. But adenoma detection rates for the nine physicians over the past year ranged from 17% to 38%, with three physicians below 25%.

Outcome

The outcome that matters is colorectal cancer that develops after a colonoscopy that should have prevented it, sometimes called an interval cancer. Outcomes are rare and appear years later, which makes them hard to measure at a single center. This is why process measures strongly linked to outcomes are so valuable.

The link here is well established. Corley et al. (2014), studying more than 300,000 colonoscopies performed by 136 gastroenterologists in an integrated health system, found that physicians' adenoma detection rates ranged from about 7% to more than 50% and that each 1% increase in a physician's detection rate was associated with about a 3% decrease in patients' risk of interval colorectal cancer. Patients of physicians in the highest quintile of detection had about half the risk of interval cancer of those in the lowest.

The Other Aims

Looking across all six aims reveals two more gaps worth watching (Institute of Medicine, 2001). On equity, bowel preparation was adequate in only about 79% of procedures for patients whose preferred language is Spanish, compared with 89% for English speakers; the center's preparation instructions were printed only in English, and a poorly prepared colon hides polyps. On efficiency, about 6% of procedures had to be repeated within a year because of inadequate preparation, which costs patients another day of fasting and sedation. Both problems connect back to effectiveness, because a colon that cannot be seen cannot be examined well.

Why This Is the Organization to Follow

The center is a useful organization to follow through a course on quality management for three reasons. First, its central quality measure is clear, measurable at the level of each physician and linked by strong evidence to outcomes. Second, it shows that high patient satisfaction and good structure do not guarantee effective care, a key lesson in quality management. Third, improving the measure raises questions covered later in the course: how to report individual performance fairly, how physicians respond to feedback, which improvement methods fit and how to sustain gains.

Quality Concepts at Work

Several concepts will recur. Variation is central: when physicians using the same equipment on similar patients produce different results, the variation itself signals a quality problem. Measurement must be fair: detection rates should be calculated only for average-risk screening colonoscopies in patients old enough for routine screening, so that physicians who see more high-risk or diagnostic cases are not unfairly compared. Accountability and learning must be balanced: publishing detection rates to physicians can motivate improvement but can also create defensiveness if presented as blame. And the patient's perspective matters: patients cannot judge polyp detection, so the center has a duty to measure it on their behalf.

Initial Goals

Based on this analysis, the center's quality committee set initial goals for the year: calculate and share each physician's adenoma detection rate quarterly, using a consistent definition; bring every physician to at least 25% in average-risk screening patients; raise adequate bowel preparation above 90% through better patient instructions; and track withdrawal times. Later weeks will develop how the center measures, improves and sustains these results.

Conclusion

Quality in health care has several dimensions, and an organization can excel on some while falling short on others. The endoscopy center's structure and patient experience are strong, but Donabedian's framework and the IOM's aims direct attention to effectiveness, where adenoma detection varies more than twofold across physicians. Because research ties detection rates to cancers prevented, this variation is the center's most important quality problem, and it will anchor the analysis in the weeks ahead.

References

Corley, D. A., Jensen, C. D., Marks, A. R., Zhao, W. K., Lee, J. K., Doubeni, C. A., Zauber, A. G., de Boer, J., Fireman, B. H., Schottinger, J. E., Quinn, V. P., Ghai, N. R., Levin, T. R., & Quesenberry, C. P. (2014). Adenoma detection rate and risk of colorectal cancer and death. New England Journal of Medicine, 370(14), 1298-1306. https://doi.org/10.1056/NEJMoa1309086

Donabedian, A. (1988). The quality of care: How can it be assessed? JAMA, 260(12), 1743-1748. https://doi.org/10.1001/jama.1988.03410120089033

Institute of Medicine. (2001). Crossing the quality chasm: A new health system for the 21st century. National Academy Press.