Journal of endovascular therapy : an official journal of the International Society of Endovascular Specialists · 2022
Impact of Antimicrobial-Resistant Bacterial and Polymicrobial Infection on Wound Healing After Minor Forefoot Amputation in Chronic Limb-Threatening Ischemia With Infection.
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Kato Taku, Yanagiuchi Takashi, Hirano Keita, Imura Haruki, Matsubara Kunihiko, Hanabusa Katsuyuki, Ota Yutaro, Yamazaki Shinya, Ushimaru Shunpei, Yokoi Hirokazu
Аннотация
OBJECTIVES: This study aimed to evaluate the relationship between bacteriological findings and wound healing after minor amputation in the treatment of chronic limb-threatening ischemia (CLTI) with infection.
METHODS: This single-center retrospective study analyzed 135 consecutive limbs with tissue loss and infection from 120 patients who underwent endovascular therapy (EVT) and minor forefoot amputation for CLTI with wound infection between November 2017 and August 2021. The Kaplan-Meier method was used to assess the rate of wound healing after the procedure. The Cox proportional-hazards model was used to examine the impact of bacteriological findings and baseline characteristics on wound healing.
RESULTS: The wound healing rate at 6 months was 72.6%. In a multivariate analysis, in addition to hemodialysis (hazard ratio [HR]=1.73; p=0.009) and amputation above the metatarsophalangeal (MP) joint (HR=1.81; p=0.006), antimicrobial-resistant bacterial infection (HR=1.80, p=0.004) and polymicrobial infection (H=1.51; p=0.049) were predictors of delayed wound healing.
CONCLUSION: Antimicrobial-resistant bacterial infection, polymicrobial infection, hemodialysis, and amputation above the MP joint were independent predictors of delayed wound healing after EVT and minor forefoot amputation in patients with CLTI and bacterial wound infection.
CLINICAL IMPACT: In this single-center retrospective study, we analyzed 136 consecutive limbs with tissue loss and infection from 120 patients who underwent endovascular therapy and minor forefoot amputation for chronic limb-threatening ischemia (CLTI) with wound infection between November 2017 and August 2021. Our main findings were that antimicrobial-resistant bacterial infection, polymicrobial infection, hemodialysis, and amputation above the metatarsophalangeal joint were independent predictors of delayed wound healing after minor amputation. This is the first report of the association between bacteriological studies and wound healing in CLTI with infection, and will be of great help in the future clinical practice.
METHODS: This single-center retrospective study analyzed 135 consecutive limbs with tissue loss and infection from 120 patients who underwent endovascular therapy (EVT) and minor forefoot amputation for CLTI with wound infection between November 2017 and August 2021. The Kaplan-Meier method was used to assess the rate of wound healing after the procedure. The Cox proportional-hazards model was used to examine the impact of bacteriological findings and baseline characteristics on wound healing.
RESULTS: The wound healing rate at 6 months was 72.6%. In a multivariate analysis, in addition to hemodialysis (hazard ratio [HR]=1.73; p=0.009) and amputation above the metatarsophalangeal (MP) joint (HR=1.81; p=0.006), antimicrobial-resistant bacterial infection (HR=1.80, p=0.004) and polymicrobial infection (H=1.51; p=0.049) were predictors of delayed wound healing.
CONCLUSION: Antimicrobial-resistant bacterial infection, polymicrobial infection, hemodialysis, and amputation above the MP joint were independent predictors of delayed wound healing after EVT and minor forefoot amputation in patients with CLTI and bacterial wound infection.
CLINICAL IMPACT: In this single-center retrospective study, we analyzed 136 consecutive limbs with tissue loss and infection from 120 patients who underwent endovascular therapy and minor forefoot amputation for chronic limb-threatening ischemia (CLTI) with wound infection between November 2017 and August 2021. Our main findings were that antimicrobial-resistant bacterial infection, polymicrobial infection, hemodialysis, and amputation above the metatarsophalangeal joint were independent predictors of delayed wound healing after minor amputation. This is the first report of the association between bacteriological studies and wound healing in CLTI with infection, and will be of great help in the future clinical practice.
Предметные рубрики MeSH
HumansRetrospective StudiesAmputation, SurgicalMaleWound HealingFemaleAgedTreatment OutcomeMiddle AgedTime FactorsRisk FactorsAnti-Bacterial AgentsEndovascular ProceduresChronic Limb-Threatening IschemiaCoinfectionPeripheral Arterial DiseaseDrug Resistance, BacterialRisk AssessmentBacterial InfectionsForefoot, HumanSurgical Wound InfectionAged, 80 and over