Original Article
Improving compliance with postpolypectomy surveillance guidelines: an interventional study using a continuous quality improvement initiative

https://doi.org/10.1016/j.gie.2005.08.048Get rights and content

Background

Despite guidelines, physicians tend to perform postpolypectomy surveillance colonoscopies too frequently.

Objective

The objective of the study was to determine the baseline compliance rate with postpolypectomy guidelines in our unit and to determine the influence of a continuous quality improvement (CQI) intervention on improving the compliance rate and on decreasing the potential additional costs because of the scheduling of postpolypectomy surveillance colonoscopies earlier than indicated.

Design

This was a single-arm, pretest-posttest design.

Setting

This study took place at a tertiary care, academic medical center.

Patients

The medical records of all patients who underwent colonoscopy with polypectomy in our unit retrospectively during 6 months preceding (baseline period) and prospectively for 6 months after an intervention (postintervention period) were reviewed for patient demographics, colonoscopy findings, and scheduling of repeat colonoscopies.

Intervention

We used 3 components: (1) distribution of a wallet-size card with a summary of postpolypectomy guidelines to all endoscopists, (2) placement of guideline charts near computers used for typing endoscopy reports, and (3) distribution and reinforcement of the guidelines in a monthly continuous quality improvement meeting.

Main Outcome Measures

The main outcome measures were compliance rates, mean times to repeat colonoscopy, and additional costs from surveillance colonoscopies being scheduled earlier than indicated were compared between the two periods.

Results

There were 278 patients in the baseline period and 242 in the postintervention period, with similar patient and polyp characteristics. After the intervention, the compliance rate with guidelines improved from 57.2% to 81% (p < 0.001). The mean time to a repeat colonoscopy increased from 4.5 to 5.2 years (p = 0.003) (i.e., a 14% reduction in the number of postpolypectomy surveillance colonoscopies performed per year). This would result in a reduction of a total of 73 surveillance colonoscopies per year in our unit, with a projected cost savings of $171,331 per year (cost of a colonoscopy assumed at $2347).

Limitations

The limitation of the study was possible enhanced performance secondary to being observed (Hawthorne effect). Because more than 1 intervention was used, we do not know which one is more effective.

Conclusions

Relatively simple and easy-to-implement quality improvement initiatives can significantly enhance compliance with postpolypectomy guidelines and result in cost savings because of a reduction in the number of postpolypectomy surveillance colonoscopies being scheduled earlier than recommended guidelines.

Section snippets

Material and methods

This CQI intervention study consisted of a single-arm, pretest-posttest design. It was conducted at MetroHealth Medical Center (MHMC) in Cleveland, Ohio, USA. MHMC is a county hospital and a tertiary care, academic medical center, with an Accreditation Council for Graduate Medical Education-approved gastroenterology fellowship program. There are 10 attending gastroenterologists and 8 fellows in training at our institution. All attendings are full-time salaried faculty members of the hospital.

Results

There were a total of 389 patients in the baseline period and 346 in the postintervention period who underwent a colonoscopy with polypectomy, of which 111 and 94, respectively, were excluded from the analysis because of various exclusion criteria (Table 2). Hence, there were 278 patients in the baseline period and 242 patients in the postintervention period who were analyzed. Patient and polyp characteristics were similar in both periods (Table 3, Table 4).

The effects of the CQI intervention

Discussion

The key findings of this study are that there is considerable noncompliance with postpolypectomy surveillance guidelines and that a relatively simple intervention can significantly improve the compliance rates. This improved compliance results in reducing the number of postpolypectomy surveillance colonoscopies being scheduled earlier than suggested by guidelines.

Despite having evidence-based guidelines for screening and postpolypectomy surveillance colonoscopies from professional subspecialty

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      Citation Excerpt :

      The findings of higher proportion of correct surveillance timing among examinations performed within organised population based screening programmes, as compared to community practice [31], would support the role of practice organisation in enabling implementation of guidelines and in reinforcing clinicians adherence with recommendations. Indeed, interventions combining the dissemination of guidelines (using wallet-size cards, printed schemes displayed in the clinic) with supervision of the application by a nurse coordinator [41], or with a monthly continuous quality improvement meeting [68], resulted in an increase from 37% to 96% or from 57% to 81% in the proportion of indications for post-polypectomy surveillance matching the guidelines. Patients compliance with recommended post-polypectomy surveillance intervals ranges between 30% and 80% [42], with low levels of compliance, also among patients detected with HR lesions [1].

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    This study was presented as a poster at the 69th annual scientific meeting of American College of Gastroenterology, October 29-November 3, 2004, Orlando, Florida (Am J Gastroenterol 2004;99:S329).

    This study was supported, in part, by an NIH grant (#MOIRR000080) provided to General Clinical Research Center at Case Western Reserve University/MetroHealth Medical Center, Cleveland, Ohio.

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