Critical Limb Ischemia
Conditions
Brief summary
Given the importance of understanding CLI patients' outcomes and existing gaps in knowledge, there is a pressing need to collect observational data on treatment patterns, adherence to performance measures, and outcomes that are relevant to patients and clinicians. To address this need, the current study will pilot test the research infrastructure and data elements needed to build a larger, national study collecting of the CLI population. It will also provide much-needed preliminary information to identify areas of action that can be targeted in quality improvement programs for this population. Most importantly, it will provide data on health status outcomes in patients with CLI, as a function of individual patient characteristics (demographics, socio-economic and clinical background) and the treatments that patients have undergone. The PORTRAIT-CLI study will also be well equipped to identify potential disparities in the provision of care and patients' outcomes as a function of patient's characteristics.
Interventions
OTHERcare as usual
The investigators will be following patients with critical limb ischemia and documenting the usual care that the participants receive.
Sponsors
Boston Scientific Corporation
Saint Luke's Health System
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
All race/ethnicity categories, English or Spanish speaking, men and women * Age ≥18 years * Patients presenting with Rutherford Classification 4 (ischemic rest pain), or Rutherford Classification 5 (minor tissue loss: non-healing ulcer, focal gangrene with diffuse pedal ischemia), or Rutherford Classification 6 (major tissue loss: extending above transmetatarsal level, functional foot no longer salvageable) at specialty clinics will prospectively be screened, regardless of whether the patient undergoes endovascular, bypass, amputation, and/or medical therapy. * Diagnosis is supported by any of the following hemodynamic parameters (assessed pre- procedurally): Ankle pressure lower than 70 mmHg; Toe pressure lower than 50 mmHg or evidence of ischemia by transcutaneous oxygen measurement (tcpO2) \<40 or a skin perfusion pressure (SPP) \<40 or angiographic evidence of significant vascular disease
Exclusion criteria
* No other prior surgical or vascular interventions within 2 weeks before and/or planned 30 days after the enrollment * Acute limb ischemia * Unable to provide written informed consent * Currently a prisoner
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| CLI-specific health status | 12 months | Peripheral Artery Questionnaire-CLI version |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Freedom from major amputation or major reintervention | 12 months | Freedom from major amputation or major peripheral vascular reintervention (surgical or angioplasty) |
Countries
United States
Outcome results
None listed