Correlation of ABCD2 score with degree of internal carotid artery stenosis: an observational pilot study.

BACKGROUND: ABCD(2) is a validated scoring system that predicts the risk of stroke after a transient ischemic attack (TIA). International guidelines suggest that patients with a low score can be investigated on an outpatient basis. The ABCD2 score, however, cannot identify which patients have significant internal carotid artery (ICA) disease, and this group of patients could benefit from rapid access carotid endarterectomy (RACE). Studies have shown that patients with significant carotid artery disease have a higher risk of neurologic events or recurrent stroke. The aim of this study was to document the range of ABCD2 scores in patients with carotid artery-related TIA, and investigate any correlation between the ABCD2 scores and ICA stenosis. METHODS: Patients undergoing carotid duplex ultrasound scan for TIA from January 2009 to May 2010 from two vascular units were identified from the vascular database retrospectively. Clinical notes were reviewed and outcomes measures were recorded: ABCD2 scores (age, blood pressure, clinical features, diabetes, and duration) and carotid plaque morphology. RESULTS: Ninety-seven patients with a mean age of 74 (range 56-90) years had ICA stenoses of ≥50% up to 100%. Fifty-seven patients had an ABCD2 score of ≤4. There was no significant correlation between ABCD2 scores and degree of ICA stenosis nor carotid plaque morphology (P=0.2, r=1.0, and P=1.0, r=0.0007, respectively). CONCLUSIONS: Because no correlation between ABCD2 scores and the degree of ICA stenosis was found, all patients with carotid territory TIA should undergo urgent imaging of the carotid arteries because a high proportion of these patients may benefit from RACE.

Does a clinical guideline change chlamydia testing? Report from the Waikato Chlamydia Project.

BACKGROUND AND CONTEXT: Waikato District Health Board was one of three districts chosen to implement a national chlamydia management guideline, with the aim of optimising testing and treatment. Previous New Zealand studies suggest any test increases associated with such an intervention may be short-lived. ASSESSMENT OF PROBLEM: District-wide chlamydia test volumes were compared for three periods, before (June-Nov 2008), during (June-Nov 2009) and after (June-Nov 2010) guideline implementation by age, gender and ethnicity. Crude estimates of population test uptake were calculated. Azithromycin pharmacy claim volumes were assessed as a measure of treatment. RESULTS: Chlamydia test uptake for women was already high, with 23% of 15- to 24-year-old women tested during the period from June to November 2008. Although tests from under-25-year-olds increased during implementation in 2009, the change was not significant and was not sustained in 2010, p=0.06. Similarly, there were no significant sustained changes by gender or ethnicity following implementation. STRATEGIES FOR IMPROVEMENT: This includes a continued emphasis on optimal chlamydia case finding and treatment by focusing on those at greater risk of infection. Efforts to improve partner notification should be instigated which may in turn better engage men around sexual health. LESSONS: Local data should be used to identify local issues. There is a need to determine whether <25 years is the optimal age threshold for targeted chlamydia testing in New Zealand and to ensure appropriate resources, training and support are in place for primary care nurses who play a pivotal role in sexual health care delivery.

A multi-setting audit of the management of genital Chlamydia trachomatis infection.

AIM: To audit current management of genital chlamydia infection in the Waikato District Health Board (DHB), using 2008 Ministry of Health (MOH) management guidelines as the standard. METHODS: Any setting within Waikato DHB that diagnosed 25 or more cases of chlamydia during February-October 2008 was eligible to participate. Each site was asked to complete an audit using a proforma for 20 consecutive cases. RESULTS: Nineteen of 20 eligible sites provided data on 415 cases; 18.4% of all Waikato DHB cases during the 9 months. Treatment was documented for 380 (91.6%); of these, 369 (97.1%), or 88.9% of all 415 cases, had treatment within 28 days. Documentation of discussions with cases and outcomes was limited, restricting assessment of actual practice. Nonetheless, effective partner notification was lacking. Participants noted they had reviewed their own processes and made suggestions for improvements. CONCLUSION: The audit has identified potential gaps between recommendations within the MOH guidelines and current practice. This has helped the development of ongoing education and training resources for local providers. Further, it is hoped participation in the audit may contribute to improved case management in high-caseload settings in our district. There is commitment to re-audit to evaluate this.