Cheng-Wei Lin1, Brend Ray-Sea Hsu1, Jir-Shiong Tsai2, Hui-Mei Yang1, Jr-Rung Lin3, Chia-Hung Lin1, Chung-Huei Huang1, Shih-Yuan Hung1, Yu-Yao Huang4. 1. Division of Endocrinology and Metabolism, Department of Internal Medicine, Chang Gung Memorial Hospital, Chang Gung University, Taoyuan City, Taiwan. 2. Sun Yat-Sen Cancer Center, Taipei City, Taiwan. 3. Clinical Informatics and Medical Statistics Research Center, Chang Gung University, Taoyuan City, Taiwan. 4. Division of Endocrinology and Metabolism, Department of Internal Medicine, Chang Gung Memorial Hospital, Chang Gung University, Taoyuan City, Taiwan; Department of Medical Nutrition Therapy, Chang Gung Memorial Hospital, Chang Gung University, Taoyuan City, Taiwan. Electronic address: yyh@cgmh.org.tw.
Abstract
AIMS: To evaluate the effect of limb preservation status and body mass index (BMI) on the survival of patients with diabetic foot ulcers (DFUs). METHODS: A total of 1346 patients treated for limb-threatening DFUs at a major diabetic foot center in Taiwan from 2002 to 2009 were tracked until December 2012. The patients were classified into three groups: limb-preserved (n=858), minor lower-extremity amputation (LEA) (n=249), and major LEA (n=239). Clinical data during treatment were used for survival analysis. RESULTS: With 729 deaths, the median survival time (MST) was 6.14 (95% CI 5.63-6.65) years. Major LEA and BMI were two independent factors associated with mortality after adjusting for age, diabetic duration, HbA1c level, comorbidities and peripheral artery diseases. The mortality hazard ratios for the minor and major LEA groups were 0.92 (95% CI 0.74-1.16) and 1.34 (95% CI 1.07-1.68), respectively, to the reference group (limb-preserved). After stratifying BMI into four categories (underweight, normal weight, overweight and obesity, according to the Taiwanese definition), the MSTs for each category were 2.57, 5.24, 7.47 and 7.85years, respectively (P for trend <0.01). This "obesity paradox" was not observed in the major LEA group (P for trend 0.25). For patients with LEA, the obesity patients had lower MST than those in overweight category (7.97 and 8.84 in minor and 3.25 and 5.42 in major LEA, respectively). CONCLUSIONS: For the patients treated for DFUs, major - but not minor - LEA was associated with poor survival compared with the limb-preserved group. The MST had positive correlation with BMI levels for patients with limb-preserved and minor LEA, but not for those with major LEA.
AIMS: To evaluate the effect of limb preservation status and body mass index (BMI) on the survival of patients with diabetic foot ulcers (DFUs). METHODS: A total of 1346 patients treated for limb-threatening DFUs at a major diabetic foot center in Taiwan from 2002 to 2009 were tracked until December 2012. The patients were classified into three groups: limb-preserved (n=858), minor lower-extremity amputation (LEA) (n=249), and major LEA (n=239). Clinical data during treatment were used for survival analysis. RESULTS: With 729 deaths, the median survival time (MST) was 6.14 (95% CI 5.63-6.65) years. Major LEA and BMI were two independent factors associated with mortality after adjusting for age, diabetic duration, HbA1c level, comorbidities and peripheral artery diseases. The mortality hazard ratios for the minor and major LEA groups were 0.92 (95% CI 0.74-1.16) and 1.34 (95% CI 1.07-1.68), respectively, to the reference group (limb-preserved). After stratifying BMI into four categories (underweight, normal weight, overweight and obesity, according to the Taiwanese definition), the MSTs for each category were 2.57, 5.24, 7.47 and 7.85years, respectively (P for trend <0.01). This "obesity paradox" was not observed in the major LEA group (P for trend 0.25). For patients with LEA, the obesitypatients had lower MST than those in overweight category (7.97 and 8.84 in minor and 3.25 and 5.42 in major LEA, respectively). CONCLUSIONS: For the patients treated for DFUs, major - but not minor - LEA was associated with poor survival compared with the limb-preserved group. The MST had positive correlation with BMI levels for patients with limb-preserved and minor LEA, but not for those with major LEA.
Authors: Kyrstin L Lane; Mohammed S Abusamaan; Betiel Fesseha Voss; Emilia G Thurber; Noora Al-Hajri; Shraddha Gopakumar; Jimmy T Le; Sharoon Gill; Jaime Blanck; Laura Prichett; Caitlin W Hicks; Ronald L Sherman; Christopher J Abularrage; Nestoras N Mathioudakis Journal: J Diabetes Complications Date: 2020-05-22 Impact factor: 2.852
Authors: Khalid Al-Rubeaan; Mohammad K Almashouq; Amira M Youssef; Hamid Al-Qumaidi; Mohammad Al Derwish; Samir Ouizi; Khalid Al-Shehri; Saba N Masoodi Journal: PLoS One Date: 2017-11-27 Impact factor: 3.240