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Conservative Wound Care: A Relevant Approach to Manage Diabetic Foot Ulcers                          08

                                                                                                                                     Primary outcome
         Diabetes                                                                                                                    Initial  healing  of  the  index  wound  using  a

         Conservative Wound Care: A Relevant Approach to Manage Diabetic Foot Ulcers                                                 conservative wound management approach.
                                                                                                                                                                                    11

         Endorsed by: Dr. Paresh R. Pai, Vascular and Endovascular Surgeon, Mumbai
                                                                                                                                     Secondary outcomes

         Background                                                                                                                  Time  to  wound  healing  (time  interval  between
                                                                                                                                     first  clinic  visit  to  no  further  requirement  of
         The  prevalence  of  critical  limb  threatening  ischemia  (CLTI)  is  rapidly  increasing  due  to  aging                 treatment)
                                                                                                                                                 8
         population and high prevalence of end-stage renal disease (ESRD) and diabetes.     1
                                                                                                                                     Wound recurrence   8

                                                                                                                                     Delayed revascularization to achieve healing  8
         The combination of diabetes with peripheral arterial disease often presents with challenging wounds                         Failure of conservative care (after 6 weeks, index

         with poor functional outcomes and tissue loss.   2,3
                                                                                                                                     wound  fail  to  heal  leading  to  limb  loss,
                                                                                                                                     revascularization, or surgical bypass)  8             b) Risk of amputation
         Guidelines  for  critical  limb  threatening  ischemia  salvage  advocate  for  a  structured  and  tailored                                                                      Very low risk :  1-year  limb
                                                                                                                                                                                                          8
         approach to define etiologic and anatomic characteristics of CLTI.   4-10                                                    Results                                               loss risk of 3%

                                                                                                                                     a) Patient demographics
         Besides revascularization, a conservative approach to wound healing focusing on wound care has                              Amongst 1,113 patients prospectively enrolled in      Low  risk :  1-year  limb  loss
                                                                                                                                                                                                     8
         been validated as safe and effective in the setting of mild to moderate ischemia.  4,7                                      the  PAVE  program,  89  (122  limbs)  met  the       risk of 8%

                                                                                                                                     inclusion  criteria  for  the  conservative  group.
         This  current  study  explored  the  use  of  conservative  wound  care  approaches  to  patients  with                     Mean ankle-brachial index was 0.86 ± 0.31 and         Moderate  risk :  1-year  limb
                                                                                                                                                                                                          8
         non-infected,  diabetic  foot  ulcers  with  mild  to  moderate  ischemia,  in  a  multidisciplinary  limb                  average TcPO  measurements were 47.4 ± 17.6           loss  risk  of  ~25%  =  43%
                                                                                                                                                    2
         preservation program at a Veterans Affairs Hospital.  11                                                                    mm Hg (table 1).  11                                  patients.



        Study design                                            Inclusion criteria

        The  Prevention  of  Amputation  in  Veterans           Age: ≥ 18 years
        Everywhere  (PAVE)  is  a  veteran-specific,             Presence  of  peripheral  arterial  disease  and

        prospectively maintained database that includes         tissue loss
        all patients with CLTI and tissue loss. 11              With     mild     to     moderate      ischemia

                                                                (transcutaneous  partial  pressure  of  oxygen
        A  multidisciplinary  team  was  also  established      (TcPO ) of 30-59 mmHg)
                                                                       2
        and  included  PAVE  coordinator,  vascular             An ankle-brachial index (ABI) < 0.9
        surgeons, podiatrists, physiatrists, pharmacists,       Absent pedal pulses

        prosthetists,    nurses,     infectious    disease      Presence of tissue loss or ulceration
        specialists, and nutritionists. 7,11                    Comorbidities:     diabetes    mellitus    (DM),

                                                                smoking  history,  hypertension  (HTN),  chronic
                                                                kidney disease (CKD), and/or end-stage renal

                                                                disease (ESRD).
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