30 results on '"Ikuro Kitano"'
Search Results
2. Assessment of 3-Year Patency after Endoluminal versus Surgical Bypass Therapy for Complex Femoropopliteal Artery Disease
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Takuya Tsujimura, Osamu Iida, Mitsuyoshi Takahara, Yusuke Tomoi, Jin Okazaki, Terutoshi Yamaoka, Shigeo Ichihashi, Tomoaki Hirose, Ikuro Kitano, Kenji Suzuki, Naoki Fujimura, and Toshiaki Mano
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Radiology, Nuclear Medicine and imaging ,Cardiology and Cardiovascular Medicine - Published
- 2023
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3. Tension-Free Management of Surgical Wound in Paramalleolar Bypass
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Ikuro Kitano, Yoriko Tsuji, and Yoshihiko Tsuji
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paramalleolar bypass ,medicine.medical_specialty ,integumentary system ,critical limb-threatening ischemia ,Wound dehiscence ,business.industry ,artificial dermis ,Ischemia ,Surgical wound ,General Medicine ,Anastomosis ,medicine.disease ,Surgery ,medicine.anatomical_structure ,Dermis ,Wound management ,medicine ,Original Article ,wound management ,Ankle ,business ,Wound healing - Abstract
Objective: In paramalleolar bypass for critical limb-threatening ischemia (CLTI), excessive skin tension may occur for the closure of surgical wounds around the ankle. Furthermore, these surgical incisions are often proximal to infectious ischemic ulcers. Wound dehiscence caused by skin tension and surgical site infection carries a risk of graft exposure, anastomotic disruption, or graft insufficiency. Patients and Methods: Tension-free wound management was adopted in eight patients who underwent paramalleolar bypass for CLTI. Tension-free closure was adopted for surgical incisions for distal anastomotic site of the paramalleolar bypass, whereas the incisions for saphenous vein harvest were left open. A relief incision was made as needed. The opened incisions were covered with artificial dermis. Results: All surgical incisions and ischemic wounds healed successfully within 1.8 months after bypass. Two postoperative graft stenoses occurred, which were rescued by additional endovascular intervention. Secondary graft patency, wound healing, and limb salvage rates were 100% during an average follow-up period of 30 months. Conclusion: Tension-free wound closure using artificial dermis was effective in selected cases of paramalleolar bypass for CLTI.
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- 2020
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4. Comparison of Clinical Outcomes between Endovascular Therapy with Self-Expandable Nitinol Stent and Femoral–Popliteal Bypass for Trans-Atlantic Inter-Society Consensus II C and D Femoropopliteal Lesions
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Shin Okamoto, Shota Okuno, Yasuhiro Matsuda, Ikuro Kitano, Kiyonori Nanto, Takuya Tsujimura, Osamu Iida, Mitsuyoshi Takahara, Takuma Iida, Masaharu Masuda, Takashi Kanda, Terutoshi Yamaoka, Toshiaki Mano, Takayuki Ishihara, and Mitsutoshi Asai
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Male ,medicine.medical_specialty ,Time Factors ,Self Expandable Metallic Stents ,030204 cardiovascular system & hematology ,Prosthesis Design ,Severity of Illness Index ,Endovascular therapy ,030218 nuclear medicine & medical imaging ,Peripheral Arterial Disease ,03 medical and health sciences ,0302 clinical medicine ,Japan ,Recurrence ,Risk Factors ,Self-expandable metallic stent ,Severity of illness ,Alloys ,medicine ,Humans ,Vascular Patency ,Popliteal Artery ,Aged ,Retrospective Studies ,Aged, 80 and over ,business.industry ,Standard treatment ,Endovascular Procedures ,Retrospective cohort study ,General Medicine ,Surgery ,Femoral Artery ,Treatment Outcome ,medicine.anatomical_structure ,Female ,Vascular Grafting ,medicine.symptom ,Cardiology and Cardiovascular Medicine ,Claudication ,business ,Artery - Abstract
Femoral-popliteal (F-P) bypass is the standard treatment for lower extremity peripheral artery disease with severe femoropopliteal (FP) artery lesions. However, in clinical settings, these patients are treated with endovascular therapy (EVT) because of frailty and difficulties with general anesthesia. We compared the clinical outcomes of F-P bypass and EVT for severe FP artery lesions and investigated the types of patients for whom EVT would be as appropriate as F-P bypass.This multicenter, retrospective study included 452 Trans-Atlantic Inter-Society Consensus (TASC) II C and D FP artery lesions in 352 patients. A total of 350 lesions in 260 patients (74 ± 9 years, 66% male, 60% claudication) were treated with EVT with nitinol self-expandable stents, and 102 lesions in 92 patients (71 ± 9 years, 75% male, 40% claudication) were treated with F-P bypass. The primary outcome measure was primary patency, and the influence of baseline characteristics on its association with the treatment strategy (EVT versus F-P bypass) was assessed using a Cox proportional hazards regression model.Kaplan-Meier analysis indicated that the 3-year primary patency rate was significantly lower for EVT than F-P bypass (60% vs. 74%, P 0.01). The body mass index (BMI) and C-reactive protein (CRP) levels significantly interacted with the treatment strategy for restenosis (P 0.05). The adjusted hazard ratios of EVT versus F-P bypass for restenosis were 0.77 (P = 0.46) in cases with a low BMI (≤18 kg/mIn TASC II C and D lesions, EVT appears to yield patency comparable to that of F-P bypass in patients with a low BMI or an elevated CRP level, but lower patency in other patients.
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- 2019
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5. Comparison of Clinical Outcomes after Surgical and Endovascular Revascularization in Hemodialysis Patients with Critical Limb Ischemia
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Masaaki Uematsu, Terutoshi Yamaoka, Jin Okazaki, Osamu Iida, Shinsuke Mii, Yoshimitsu Soga, Toshinobu Ishikawa, Sosei Kuma, Yoshiaki Shintani, Daisuke Kamoi, Ikuro Kitano, Tatsuya Shiraki, and Mitsuyoshi Takahara
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Male ,medicine.medical_treatment ,Kaplan-Meier Estimate ,030204 cardiovascular system & hematology ,0302 clinical medicine ,Japan ,Ischemia ,Risk Factors ,Interquartile range ,Registries ,030212 general & internal medicine ,Endovascular Procedures ,Critical limb ischemia ,Middle Aged ,Limb Salvage ,Treatment Outcome ,Bypass surgery ,Hemodialysis ,Cardiology ,Female ,Stents ,Original Article ,medicine.symptom ,Cardiology and Cardiovascular Medicine ,medicine.medical_specialty ,Endovascular therapy ,Revascularization ,Risk Assessment ,Amputation, Surgical ,Peripheral Arterial Disease ,03 medical and health sciences ,Renal Dialysis ,Internal medicine ,Internal Medicine ,medicine ,Humans ,Cardiac Surgical Procedures ,Propensity Score ,Aged ,Proportional Hazards Models ,Retrospective Studies ,business.industry ,Biochemistry (medical) ,Extremities ,Retrospective cohort study ,Surgery ,Amputation ,Propensity score matching ,business - Abstract
Aim: The treatment strategy for hemodialysis (HD) patients with critical limb ischemia (CLI) has been clinically debatable. Here we compared clinical outcomes after bypass surgery (BSX) and after endovascular therapy (EVT) using propensity score matching. Methods: A retrospective multicenter database of 246 (68 BSX and 178 EVT) consecutive HD patients with CLI (79% with tissue loss) who underwent infrainguinal revascularization from 2007 to 2009 was used to compare clinical outcomes, including overall survival (OS), major amputation (MA), major adverse limb event (MALE: repeat EVT, surgical reconstruction, or MA), and MALE-free survival after BSX vs. EVT using propensity score matching. Results: The median (interquartile range) follow-up duration after revascularization was 21 (8–33) months. The analysis of the 63 propensity score-matched pairs revealed no significant difference in OS (53% vs. 52%, P = 0.96), MA (25% vs. 14%, P = 0.71), MALE (42% vs. 58%, P = 0.63), and MALE-free survival (33% vs. 11%, P = 0.37) at 3 year after BSX vs. EVT. Conclusions: In HD patients with CLI who underwent infrainguinal revascularization, OS, MA, MALE, and MALE-free survival rates were not significantly different after EVT vs. BSX. The less invasive EVT should be considered as the first-choice therapeutic strategy for HD patients with CLI.
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- 2017
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6. 3-Year Outcomes of the OLIVE Registry, a Prospective Multicenter Study of Patients With Critical Limb Ischemia
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Keisuke Hirano, Masaaki Uematsu, Terutoshi Yamaoka, Yasutaka Yamauchi, Kenji Kawamoto, Nobuhiro Suematsu, Naoto Inoue, Hiroyoshi Yokoi, Yoshiaki Yokoi, Taketsugu Tsuchiya, Yasuhiro Oba, Osamu Iida, Y. Soga, Masato Nakamura, Yoshiaki Shintani, Mitsuyoshi Takahara, Norihiko Ohura, Toshiro Shinke, Toshimitsu Hamasaki, Kazushi Urasawa, Olive Investigators, Ikuro Kitano, Yusuke Miyashita, Shinsuke Nanto, Michitaka Uesugi, Masashi Fukunaga, Kenji Suzuki, and Kan Zen
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medicine.medical_specialty ,Proportional hazards model ,business.industry ,medicine.medical_treatment ,Hazard ratio ,Ischemia ,Odds ratio ,Critical limb ischemia ,medicine.disease ,Surgery ,Amputation ,medicine ,medicine.symptom ,business ,Prospective cohort study ,Cardiology and Cardiovascular Medicine ,Dialysis - Abstract
Objectives This study sought to investigate the 3-year follow-up results of OLIVE registry patients. Background Although favorable 12-month clinical outcomes after endovascular therapy (EVT) in OLIVE registry patients with critical limb ischemia (CLI) from infrainguinal disease have been reported, long-term results after EVT remain unknown. Methods This was a prospective multicenter registry study that consecutively enrolled patients who received infrainguinal EVT for CLI. The primary outcome was 3-year amputation-free survival (AFS), whereas secondary outcome measures were 3-year freedom from major adverse limb events (MALE), wound-free survival, and wound recurrence rate. Prognostic predictors for each outcome were also elucidated by Cox proportional hazard regression analysis or the log-rank test. Results The completion rate of 3-year follow-up was 95%. Three-year AFS, freedom from MALE, and wound-free survival rates were 55.2%, 84.0%, and 49.6%, respectively. Wound recurrence out to 3 years was 43.9%. After multivariable analysis, age (hazard ratio [HR]: 1.43, p = 0.001), body mass index ≤18.5 (HR: 2.17, p = 0.001), dialysis (HR: 2.91, p Conclusions In CLI patients with infrainguinal lesions, 3-year clinical results of EVT were reasonable despite high reintervention and moderate ulcer recurrence rate. (A Prospective, Multi-Center, Three-Year Follow-Up Study on Endovascular Treatment for Infra-Inguinal Vessel in Patients With Critical Limb Ischemia [OLIVE 3-Year Follow-Up Study]; UMIN000014759 )
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- 2015
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7. Predictors of 2-Year Mortality and Risk Stratification After Surgical or Endovascular Revascularization of Infrainguinal Artery Disease in Hemodialysis Patients With Critical Limb Ischemia
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Daisuke Kamoi, Tatsuya Shiraki, Mitsuyoshi Takahara, O Iida, Shinsuke Mii, Jin Okazaki, Yoshimitsu Soga, Yoshiaki Shintani, Sosei Kuma, Toshinobu Ishikawa, Masaaki Uematsu, Ikuro Kitano, and Terutoshi Yamaoka
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Male ,medicine.medical_specialty ,Time Factors ,Heart Diseases ,Critical Illness ,medicine.medical_treatment ,Comorbidity ,Kaplan-Meier Estimate ,Revascularization ,Risk Assessment ,Veins ,Blood Vessel Prosthesis Implantation ,Peripheral Arterial Disease ,Japan ,Ischemia ,Renal Dialysis ,Risk Factors ,Internal medicine ,medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,Registries ,Aged ,Proportional Hazards Models ,Retrospective Studies ,Ejection fraction ,Proportional hazards model ,business.industry ,Patient Selection ,Endovascular Procedures ,Hazard ratio ,Age Factors ,Stroke Volume ,Critical limb ischemia ,Middle Aged ,Confidence interval ,Surgery ,Treatment Outcome ,Bypass surgery ,Cardiology ,Female ,Hemodialysis ,medicine.symptom ,Cardiology and Cardiovascular Medicine ,business ,Hypoalbuminemia - Abstract
Purpose: To examine the 2-year mortality in hemodialysis (HD) patients with critical limb ischemia (CLI) and determine predictors that may aid in the selection of a revascularization strategy [bypass surgery or endovascular therapy (EVT)] according to current guidelines. Methods: From 2007 to 2009, 246 consecutive CLI patients (mean age 69±10 years; 170 men) on HD underwent revascularization for de novo infrainguinal lesions (178 EVT and 68 bypass grafting). The majority of the patients had diabetes (170, 69%) and tissue loss (194, 79%); nearly half (111, 45%) were nonambulatory. Overall survival after revascularization was estimated by Kaplan-Meier analysis. Predictors for 2-year mortality after revascularization were determined using a Cox proportional hazards model; results are given as the hazard ratio (HR) and 95% confidence interval (CI). Results: Overall survival rate was 77% at 1 year and 66% at 2 years. Predictors of 2-year mortality after revascularization were age >75 years (HR 1.82, 95% CI 1.14 to 2.91, p=0.012), albumin
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- 2015
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8. Postprocedural Skin Perfusion Pressure Correlates With Clinical Outcomes 1 Year After Endovascular Therapy for Patients With Critical Limb Ischemia
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Masaaki Uematsu, Masato Nakamura, Yusuke Miyashita, Ikuro Kitano, Kenji Suzuki, Kan Zen, Norihiko Ohura, Yoshiaki Shintani, Shinsuke Nanto, Masashi Fukunaga, Yasutaka Yamauchi, Terutoshi Yamaoka, Toshimitsu Hamasaki, Nobuhiro Suematsu, Kazushi Urasawa, Yoshimitsu Soga, Keisuke Hirano, Shin Okamoto, Osamu Iida, and Yoshiaki Yokoi
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Male ,medicine.medical_specialty ,Time Factors ,Critical Illness ,Blood Pressure ,Endovascular therapy ,Amputation, Surgical ,Disease-Free Survival ,Japan ,Ischemia ,Risk Factors ,medicine ,Humans ,Prospective Studies ,Registries ,Aged ,Skin ,Aged, 80 and over ,Wound Healing ,business.industry ,Critical limb ischemia ,Middle Aged ,Skin perfusion ,Limb Salvage ,Surgery ,Logistic Models ,Treatment Outcome ,Lower Extremity ,Regional Blood Flow ,Female ,Stents ,medicine.symptom ,Cardiology and Cardiovascular Medicine ,business ,Wound healing ,Angioplasty, Balloon - Abstract
Background: Although skin perfusion pressure (SPP) is widely used clinically to predict probability of wound healing, correlation between clinical outcomes and SPP has not been systematically studied. Methods: This subanalysis of the prospective multicenter OLIVE registry of patients who received infrainguinal endovascular therapy (EVT) for critical limb ischemia (CLI) assessed the association between clinical outcomes and postoperative SPP in 211 consecutive patients. Logistic regression analysis was performed, with amputation-free survival (AFS), modified major adverse limb events (MALEs), and complete wound healing as dependent variables and postprocedural SPP as independent variable. Result: Pre- and postprocedural SPP was 28 ± 11 and 46 ± 18 mm Hg, respectively. In logistic regression analysis, postprocedural SPP correlated with 1-year AFS ( P = .018), modified MALEs ( P < .001), and wound healing ( P = .022). Conclusion: Postprocedural SPP correlates with clinical outcomes after EVT for patients with CLI.
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- 2015
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9. Outcomes of Popliteal-To-Distal Bypass Combined with Femoropopliteal Artery Endovascular Treatment for Critical Limb Ischemia
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Ikuro Kitano, Koji Sugimoto, and Yoshihiko Tsuji
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critical limb ischemia ,medicine.medical_specialty ,medicine.medical_treatment ,femoropopliteal artery endovascular treatment ,030204 cardiovascular system & hematology ,03 medical and health sciences ,0302 clinical medicine ,Restenosis ,medicine.artery ,medicine ,030212 general & internal medicine ,Endovascular treatment ,popliteal-to-distal bypass ,business.industry ,Stent ,General Medicine ,Critical limb ischemia ,medicine.disease ,Surgery ,Posterior tibial artery ,medicine.anatomical_structure ,Dorsalis pedis artery ,Distal bypass ,Original Article ,medicine.symptom ,business ,Artery - Abstract
Objective: The aim of this study was to evaluate outcomes of combined popliteal-to-distal bypass and endovascular treatment (EVT) for femoropopliteal lesions in patients with critical limb ischemia (CLI). Patients and Methods: We reviewed data of 14 CLI patients who were treated by popliteal-to-distal bypass combined with femoropopliteal EVT. The femoropopliteal lesions included 3 TASC II-A, 8 TASC II-B, and 3TASC II-C but no TASC II-D, and balloon dilatation was performed in 9 cases and a stent was placed in 5 cases. The saphenous vein graft was used in all bypasses, and the target arteries were the dorsalis pedis artery in 12 cases and the posterior tibial artery in 2 cases. Results: At 12 and 24 months, primary patency rates were both 79%, primary assisted and secondary patency rates were both 93%, limb salvage rates were both 93%, and survival rates were 92% and 84%, respectively. Restenosis after femoropopliteal EVT occurred in 2 cases, and both were successfully revised by additional endovascular balloon dilatation. Conclusion: Combined popliteal-to-distal bypass and femoropopliteal EVT might be a useful therapeutic option for appropriately selected CLI patients. Intensive follow-up for endovascular treated lesions and vein graft is mandatory.
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- 2017
10. The team approach to limb salvage; surgeon’s perspective
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Yasuyo Kuramoto, Yoshihiko Tsuji, Koji Sugimoto, Yoriko Tsuji, Ikuro Kitano, Hiroto Terashi, and Kouki Hasegawa
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medicine.medical_specialty ,business.industry ,Limb salvage ,Perspective (graphical) ,Physical therapy ,Medicine ,Critical limb ischemia ,medicine.symptom ,business ,medicine.disease ,Diabetic foot - Published
- 2014
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11. Study of the sites of ulcerationand wound healing seen from viewpoint of the foot angiosome in critical limb ischemia
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Hiroto Terashi, Ikuro Kitano, Kouji Sugimoto, Sayuri Osawa, and Yoriko Tsuji
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Angiosome ,medicine.medical_specialty ,business.industry ,Medicine ,Critical limb ischemia ,medicine.symptom ,business ,Wound healing ,Foot (unit) ,Surgery - Published
- 2012
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12. A Study on Bypass Surgery and Subsequent Wound Care for Ischemic Limbs Classified as Fontaine Stage IV and the Influence of the Level of Amputation on Walking Function
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Ikuro Kitano, Yoshihiko Tsuji, and Koji Sugimoto
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Wound care ,medicine.medical_specialty ,Amputation ,Bypass surgery ,business.industry ,medicine.medical_treatment ,medicine ,business ,Stage iv ,Surgery - Published
- 2012
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13. The physical examination for diabetic foot
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Ikuro Kitano, Hiroto Terashi, and Yoriko Tsuji
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medicine.medical_specialty ,medicine.diagnostic_test ,business.industry ,Physical therapy ,Medicine ,Physical examination ,business ,medicine.disease ,Diabetic foot - Published
- 2011
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14. Total Management of Diabetic Foot Ulcerations - Kobe Classification as a New Classification of Diabetic Foot Wounds
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Ikuro Kitano, Yoriko Tsuji, and Hiroto Terashi
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Male ,medicine.medical_specialty ,Arterial disease ,Infections ,Severity of Illness Index ,Peripheral Arterial Disease ,Diabetes mellitus ,Severity of illness ,medicine ,Humans ,Foot Ulcer ,Aged ,Pressure Ulcer ,Wound Healing ,integumentary system ,business.industry ,Peripheral Nervous System Diseases ,General Medicine ,Middle Aged ,medicine.disease ,Diabetic foot ,Diabetic Foot ,Surgery ,Peripheral neuropathy ,Debridement ,Diabetes Mellitus, Type 2 ,Female ,Wound healing ,business ,Vascular Surgical Procedures ,Foot care - Abstract
Treatment must be conducted after proper assessment of diabetic foot wounds. This implies appropriate foot care and the use of proper footwear from the perspectives of prophylaxis and walking. Diabetic foot wounds have some wound impairment factors, including peripheral neuropathy (PN), peripheral arterial disease (PAD), and infection; such wounds comprise combinations of these lesions. An additional goal besides wound healing is gait salvage. Here, we propose a simple new four-level classification of diabetic foot ulcerations, which we have termed the Kobe classification, in order to assess the wounds more easily and treat them systematically; the classification is as follows: Type I, mainly PN; Type II, mainly PAD; Type III, mainly infection; Type IV, PN+PAD+infection.
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- 2011
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15. Impact of infrapopliteal endovascular treatment on the outcome of subsequent ipsilateral distal bypass for critical limb ischemia
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Yoshihiko Tsuji, Tatsuya Shiraki, Osamu Iida, Yoriko Tsuji, Ikuro Kitano, Koji Sugimoto, and Yutaka Okita
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Male ,medicine.medical_specialty ,Time Factors ,Limb salvage ,medicine.medical_treatment ,Saphenous vein graft ,Kaplan-Meier Estimate ,Transplantation, Autologous ,Amputation, Surgical ,Disease-Free Survival ,Peripheral Arterial Disease ,Risk Factors ,Medicine ,Humans ,In patient ,Popliteal Artery ,Saphenous Vein ,Treatment Failure ,Endovascular treatment ,Vascular Patency ,Aged ,Retrospective Studies ,Aged, 80 and over ,Chi-Square Distribution ,business.industry ,General Medicine ,Critical limb ischemia ,Middle Aged ,Limb Salvage ,Surgery ,Bypass surgery ,Retreatment ,Distal bypass ,Female ,Vascular Grafting ,Hemodialysis ,medicine.symptom ,Cardiology and Cardiovascular Medicine ,business ,Angioplasty, Balloon - Abstract
BACKGROUND We retrospectively reviewed the outcomes of distal bypass for critical limb ischemia and investigated the impact on outcomes of prior unsuccessful ipsilateral infrapopliteal endovascular treatment (EVT). METHODS Between January 2005 and December 2014, we performed 142 infrainguinal bypasses for critical limb ischemia with ischemic gangrene (Rutherford classes V or VI), including 80 distal bypasses in 74 patients (male 54, female 20, median age 68.4 years, range 51-81 years). All distal bypasses used an autologous saphenous vein graft. Surgical outcomes were compared between 37 distal bypasses without prior infrapopliteal EVT (NEVT group) and 43 distal bypasses after unsuccessful infrapopliteal EVT (PEVT group). Infrapopliteal EVT was performed with balloon dilatation without stenting in all cases. RESULTS There were no significant differences in preoperative conditions or risk factors between the NEVT and PEVT groups, except for the era of bypass surgery and dependence on hemodialysis. The 3-year primary and secondary patencies were 69% and 72% in the NEVT group and 78% and 80% in the PEVT group (P=0.86, P=0.79). The 3-year limb salvage rates were 81% in the NEVT group and 82% in the PEVT group (P=0.52), and the 3-year amputation-free survival rates were 56% and 57% in the respective groups (P=0.32). Standard errors of the mean for all Kaplan-Meier curves were
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- 2015
16. Traumatic Disruption of Saphenous Vein Graft Bypassed to the Dorsalis Pedis Artery
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Yoriko Tsuji, Yoshihiko Tsuji, Katsuhiro Sawada, and Ikuro Kitano
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medicine.medical_specialty ,Cephalic vein graft ,business.industry ,Saphenous vein graft ,Case Report ,Vein graft ,General Medicine ,Surgery ,surgical procedures, operative ,medicine.anatomical_structure ,Blunt trauma ,Dorsalis pedis artery ,medicine.artery ,Rare case ,cardiovascular system ,medicine ,Ankle ,Foot ischemia ,business - Abstract
We describe a rare case of traumatic disruption of saphenous vein graft bypassed to the dorsalis pedis artery. The vein graft was disrupted at the level of ankle joint by blunt trauma and symptoms of acute foot ischemia were recognized. The injured vein graft was reconstructed with cephalic vein graft interposition. He has been free from any events of foot ischemia at 10 months follow-up with patent vein graft to the dorsalis pedis artery.
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- 2014
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17. A Case of Simultaneous Surgery for Distal Aortic Arch Aneurysm Complicated by Left Ventricular Aneurysm
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Hiroya Minami, Ikuro Kitano, Masahiro Sakata, Yujiro Kawanishi, and Noboru Wakita
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medicine.medical_specialty ,Left Ventricular Aneurysm ,Simultaneous surgery ,business.industry ,Internal medicine ,medicine ,Cardiology ,Aortic arch aneurysm ,business - Published
- 2001
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18. Minimally Invasive Surgery for Primary Varicose Vein with Stasis Ulcer by Means of Duplex Scan Oriented Venous Ligation
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Masahiro Sakata, Yujiro Kawanishi, Hiroya Minami, Ikuro Kitano, Noboru Wakita, and Tsutomu Shida
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- 2001
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19. COMBINED TREATMENT WITH ARTERIAL EMBOLIZATION AND SURGICAL RESECTION FOR THE FATAL HEMORRHAGE IN ELEPHANTIASIS NEUROFIBROMA (von RECKLINGHAUSEN'S DISEASE)
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Shinichi Nakayama, Noboru Ishii, Keiji Ataka, Masayoshi Okada, Ikuro Kitano, and Taro Hayashi
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medicine.medical_specialty ,business.industry ,Arterial Embolization ,Elephantiasis ,Disease ,medicine.disease ,Surgery ,Blood pressure ,Hematoma ,Shock (circulatory) ,medicine ,Neurofibroma ,medicine.symptom ,Complication ,business - Abstract
Two cases of von Recklinghausen's disease developing hemorrhagic shock by intratumorous bleeding were successfully treated by arterial embolization followed by surgical resection. Case 1 involved a 38-year-old woman who had been having a subcutaneous tumor with the size of infant's head in the left hip for several years. The patient was transferred to th hospital because of abrupt pain and enlargement of the tumor (27×18×15cm) leading to hemorrhagic shock. Case 2 involved a 53-year-old man who was emergently admitted to the hospital because of an enlarging huge hematoma (30×37×35cm) in the right shoulder to back. The systolic pressure was 40mmHg and the patient was in a shock state. Both cases had no epidode of trauma before admission. Emergency arterial embolization was performed in both cases to achieve the sufficient hemostsis and prevent the progression of hemorrhagic shock. Thereafter, one and two weeks later, elective resection of the neurofibroma with hematoma was successfully performed in both cases. It has been reported that acute hemorrhage is a rare complication for elephantiasis neurofibroma, but easily develops deep shock and becomes lethal. And the emergent operation is unavoidable of massive amount of intraoperative bleeding. We emphasize that combined treatment of preoperative arterial embolization with surgical resection should be recommended to treat this fatal complication of von Reclinghausen's disease.
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- 1998
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20. A FALSE ANEURYSM CAUSED BY A RUPTURED EPTFE GRAFT-REPORT OF A SURGICAL CASE
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Toshihiro Koterazawa, Ikuro Kitano, and Masayoshi Okada
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medicine.medical_specialty ,Aneurysm ,business.industry ,Medicine ,business ,medicine.disease ,Surgery - Published
- 1997
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21. Endovascular treatment for infrainguinal vessels in patients with critical limb ischemia: OLIVE registry, a prospective, multicenter study in Japan with 12-month follow-up
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Taketsugu Tsuchiya, Daizo Kawasaki, Masato Nakamura, Yasutaka Yamauchi, Yoshiaki Yokoi, Terutoshi Yamaoka, Ikuro Kitano, Y. Soga, Norihiko Ohura, Yusuke Miyashita, Nobuhiro Suematsu, Takashi Murakami, Osamu Iida, Kenji Suzuki, Yoshiaki Shintani, Hiroyoshi Yokoi, Toshiro Shinke, Keisuke Hirano, Kan Zen, Yasuhiro Oba, Toshimitsu Hamasaki, Kazushi Urasawa, Michitaka Uesugi, Shinsuke Nanto, and Naoto Inoue
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Male ,medicine.medical_specialty ,medicine.medical_treatment ,Hemodynamics ,Inguinal Canal ,Peripheral Arterial Disease ,Japan ,Ischemia ,medicine ,Clinical endpoint ,Humans ,Prospective Studies ,Registries ,Prospective cohort study ,Aged ,Wound Healing ,business.industry ,Hazard ratio ,Endovascular Procedures ,Extremities ,Critical limb ischemia ,Arteries ,Middle Aged ,medicine.disease ,Surgery ,Treatment Outcome ,Heart failure ,Female ,Hemodialysis ,medicine.symptom ,Cardiology and Cardiovascular Medicine ,business ,Body mass index ,Follow-Up Studies - Abstract
Background— Recent technical advances have made endovascular treatment (EVT) an alternative first-line treatment for critical limb ischemia. Methods and Results— A prospective multicenter study was conducted to evaluate the clinical outcomes of 314 Japanese critical limb ischemia patients (mean age, 73±10 years) with infrainguinal arterial lesions who underwent EVT. Patients were enrolled from December 2009 to July 2011 and were followed-up for 12 months. The primary end point was amputation-free survival (AFS) at 12 months. Secondary end points were anatomic, clinical, and hemodynamic measures, including 12-month freedom from major adverse limb events. The 12-month AFS rate was 74%, with body mass index P =0.008), heart failure (HR, 1.73; P =0.04), and wound infection (HR, 1.89; P =0.03) associated with a poor prognosis for AFS. The 12-month major adverse limb event-free rate was 88%, with hemodialysis (HR, 1.98; P =0.005), heart failure (HR, 1.69; P =0.02), and Rutherford classification 6 (HR, 2.25; P =0.002) associated with a poor prognosis for major adverse limb events. The median time for wound healing was 97 days, with body mass index P =0.03) and wound infection (HR, 0.60; P =0.04) being significant risk factors for unhealed wounds after EVT. At 12 months, 34% had undergone reintervention (bypass surgery, 2.6%; repeat EVT, 31.7%), and 73% were major adverse event–free. Conclusions— The high reintervention rate notwithstanding, EVT was an effective treatment for Japanese critical limb ischemia patients with infrainguinal disease, with satisfactory AFS and major adverse limb event-free rates. The results of this study will be helpful for the future evaluation of critical limb ischemia therapy. Clinical Trial Registration— URL: http://www.umin.ac.jp/ctr . Unique identifier: UMIN000002830.
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- 2013
22. Aortic aneurysm and aortic regurgitation following aortic valve replacement due to Takayasu's arteritis
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Hiroya Minami, Yujiro Kawanishi, Masahiro Sakata, Tsutomu Shida, Ikuro Kitano, and Noboru Wakita
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Adult ,Male ,medicine.medical_specialty ,Aortic Valve Insufficiency ,Takayasu's arteritis ,Aortic aneurysm ,Amaurosis ,Postoperative Complications ,Aneurysm ,Aortic valve replacement ,medicine.artery ,Internal medicine ,Ascending aorta ,medicine ,Humans ,Arteritis ,Aorta ,Heart Valve Prosthesis Implantation ,business.industry ,medicine.disease ,Takayasu Arteritis ,Aortic Aneurysm ,Surgery ,cardiovascular system ,Cardiology ,Cardiology and Cardiovascular Medicine ,business - Abstract
A 26-year-old man who underwent aortic valve replacement for aortic regurgitation due to Takayasu's arteritis 2 years earlier experienced left amaurosis persisting for some minutes. Computed tomography showed aneurysmal dilation of the ascending aorta to a diameter of 60 mm and occlusion of the left carotid artery. Cardiac echography showed perivalvular leakage. Following administration of a calcium antagonist, the patient's amaurosis subsided and brain bloodstream scintigraphy showed no abnormalities. We resected the aneurysm instead of using Bentall's operation. Following an uncomplicated postoperative course, the patient was discharged 21 days after surgery and echocardiography has shown no perivalvular leakage to date.
- Published
- 2002
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23. Primary osteosarcoma of heart with severe congestive heart failure
- Author
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Yujiro Kawanishi, Noboru Wakita, Masahiro Sakata, Tsutomu Shida, Hiroya Minami, and Ikuro Kitano
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Heart Failure ,Osteosarcoma ,medicine.medical_specialty ,Extraskeletal Osteosarcoma ,business.industry ,Middle Aged ,medicine.disease ,Atrial wall ,Surgery ,Cardiac surgery ,Heart Neoplasms ,Primary osteosarcoma ,Cardiothoracic surgery ,Surgical oncology ,Heart failure ,cardiovascular system ,Humans ,Medicine ,Female ,Heart Atria ,cardiovascular diseases ,Cardiology and Cardiovascular Medicine ,business - Abstract
We present a case report on a 54-year-old woman with extraskeletal osteosarcoma of the left atrium featuring severe congestive heart failure. We resected the tumor, which occupied the left atrium and had widely infiltrated the atrial wall, but the patients died of the tumor 9 months after surgery. This is to our knowledge the 32nd case of cardiac osteosarcoma ever reported.
- Published
- 2000
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24. A modified transmetatarsal amputation
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Shinya Tahara, Kazunobu Hashikawa, Yoriko Tsuji, Hiroto Terashi, and Ikuro Kitano
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Male ,medicine.medical_specialty ,medicine.medical_treatment ,Amputation, Surgical ,Gangrene ,medicine ,Humans ,Orthopedics and Sports Medicine ,Metatarsal Bones ,Aged ,Aged, 80 and over ,business.industry ,Vascular disease ,Foot ,Forefoot ,Soft tissue ,Middle Aged ,medicine.disease ,Diabetic foot ,Diabetic Foot ,Surgery ,Treatment Outcome ,Amputation ,Orthopedic surgery ,Female ,Metatarsal bones ,business ,Follow-Up Studies - Abstract
The incidence of the diabetic foot is increasing worldwide. Because evidence has shown that transmetatarsal amputation is associated with fewer failures in amputations of the diabetic foot with or without peripheral arterial disease, improving its management and surgical technique is a mission for the surgeon. Conventional transmetatarsal amputation has held firm, however, for more than 150 years. With a new concept for the transmetatarsal amputation method aimed at a better outcome, we propose a modified procedure for preserving the soft tissue between the metatarsal bones (the vasculature complex with the muscles, periostea, and vessels) and applying it to the distal bone stumps. The purpose of this method is to secure a functional foot by preserving the longitudinal arch. The new method was applied to 11 patients with diabetes mellitus or peripheral arterial disease, or both. All wounds closed successfully. Of the 11 patients, 8 were still alive with no complications. Of these 8 patients, 6 were able to ambulate with a custom-made shoe and 2 used a wheelchair, just as preoperatively. Of the 3 patients who died, 1 died a natural death, 1 died of sepsis, and 1 of cerebral infarction. We believe that the modified transmetatarsal amputation that we have described in this report is a potential breakthrough in the care of patients with forefoot gangrene and may gain acceptance over time.
- Published
- 2008
25. THREE-YEAR OUTCOMES IN THE OLIVE REGISTRY: A PROSPECTIVE MULTI-CENTER STUDY IN PATIENTS WITH CLINICAL LIMB ISCHEMIA
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Kan Zen, Yoshiaki Shintani, Yoshiaki Yokoi, Nobuhiro Suematsu, Masato Nakamura, Masaaki Uematsu, Mitsuyoshi Takahara, Kenji Suzuki, Daizo Kawasaki, Keisuke Hirano, Yusuke Miyashita, Toshiro Shinke, Akira Miyamoto, Ikuro Kitano, Toshimitsu Hamasaki, Kazushi Urasawa, Taketsugu Tsuchiya, Shinsuke Nanto, Yoshimitsu Soga, and Osamu Iida
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medicine.medical_specialty ,business.industry ,Multi center study ,Medicine ,In patient ,Cardiology and Cardiovascular Medicine ,business ,Limb ischemia ,Surgery - Published
- 2015
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26. Lymphatic cardiac tamponade after open-heart surgery with liver dysfunction
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Masahiro Sakata, Ikuro Kitano, Noboru Wakita, Hiroya Minami, Toshihiro Kawahira, and Tsutomu Shida
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medicine.medical_specialty ,medicine.medical_treatment ,Pericardial Effusion ,Catheterization ,Postoperative Complications ,Recurrence ,Internal medicine ,Cardiac tamponade ,Laparotomy ,Medicine ,Humans ,Liver Diseases, Alcoholic ,Mitral regurgitation ,Cardiopulmonary Bypass ,business.industry ,Mitral Valve Insufficiency ,Balloon Occlusion ,Middle Aged ,medicine.disease ,Cardiac surgery ,Surgery ,Cardiac Tamponade ,Chest tube ,Cardiothoracic surgery ,Median sternotomy ,Infective endocarditis ,cardiovascular system ,Cardiology ,Female ,Cardiology and Cardiovascular Medicine ,business ,Tomography, X-Ray Computed - Abstract
A 46-year-old female with alcoholic liver dysfunction was admitted for mitral regurgitation due to infective endocarditis. She underwent mitral valvuloplasty and resection of the vegetation without complication. After removal of the chest tube, late cardiac tamponade occurred and subsequently recurred. On the 64th day after mitral valvuloplasty, we performed redo median sternotomy with small laparotomy trying to reveal and repair injured lymphatic vessels in the pericardial space and successfully cured the leakage of lymph. The post reoperative course was uneventful and the patient was discharged 20 days after reoperation. We review a rare complication of recurrent cardiac tamponade of lymphatic leakage associated with liver dysfunction.
- Published
- 2004
27. Impending rupture in an aortic arch aneurysm by Candida infection
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Yujiro Kawanishi, Masahiro Sakata, Noboru Wakita, Ikuro Kitano, and Hiroya Minami
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Male ,medicine.medical_specialty ,Itraconazole ,Aortic Rupture ,Computed tomography ,Aneurysm ,Back pain ,medicine ,Humans ,Candida albicans ,Aged ,biology ,medicine.diagnostic_test ,Aortic Aneurysm, Thoracic ,business.industry ,Candidiasis ,Aortic arch aneurysm ,biology.organism_classification ,medicine.disease ,Surgery ,cardiovascular system ,Radiology ,medicine.symptom ,Cardiology and Cardiovascular Medicine ,business ,Aneurysm, Infected ,Uveitis ,Fluconazole ,medicine.drug - Abstract
A 68-year-old man was hospitalized with the complaints of left back pain and fever. He had a history of using steroids to treat uveitis for about thirty years. Computed tomography on the chest demonstrated an impending rupture in an aortic arch aneurysm, which was consequently surgically excised. Candida albicans was identified in the wall of the aneurysm, so fluconazole and itraconazole were administered. The patient was discharged at 120 days after surgery without recrudescence of the candida. To our knowledge, this is the fifteenth case of a successfully treated aneurysm caused by candida infection.
- Published
- 2001
28. Faux anévrysme poplité par rupture de stent
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Yoshihiko Tsuji, Osamu Iida, Satoru Kajita, Katsuhiro Sawada, Shinsuke Nanto, and Ikuro Kitano
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business.industry ,Medicine ,Electrical and Electronic Engineering ,business ,Nuclear medicine ,Atomic and Molecular Physics, and Optics - Abstract
La fracture de stent avec formation d’un faux anevrysme femoropoplite a rarement ete rapportee. Nous presentons le cas d'un homme de 72 ans avec une rupture de stent auto-expansible en nitinol et formation d’un faux anevrysme de l'artere poplitee sus-articulaire. L'artere poplitee a ete reconstruite avec succes par interposition d’une courte greffe veineuse saphene.
- Published
- 2011
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29. Popliteal Pseudoaneurysm Caused by Stent Fracture
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Ikuro Kitano, Satoru Kajita, Osamu Iida, Yoshihiko Tsuji, Shinsuke Nanto, and Katsuhiro Sawada
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Male ,Nitinol stent ,medicine.medical_specialty ,medicine.medical_treatment ,Arterial Occlusive Diseases ,Prosthesis Design ,Pseudoaneurysm ,Small saphenous vein ,Angioplasty ,medicine.artery ,Alloys ,medicine ,Humans ,Popliteal Artery ,Saphenous Vein ,cardiovascular diseases ,Aged ,business.industry ,Stent ,General Medicine ,Vascular System Injuries ,equipment and supplies ,medicine.disease ,Popliteal artery ,Prosthesis Failure ,Surgery ,Treatment Outcome ,surgical procedures, operative ,Tomography x ray computed ,medicine.anatomical_structure ,cardiovascular system ,Stents ,Radiology ,Tomography, X-Ray Computed ,Cardiology and Cardiovascular Medicine ,business ,Aneurysm, False ,Artery - Abstract
Stent fracture with pseudoaneurysm formation in the femoropopliteal artery has uncommonly been reported. We present the case of a 72-year-old man with a fracture of self-expanding nitinol stent and a pseudoaneurysm formation in the suprageniculate popliteal artery. The popliteal artery was successfully reconstructed with a small saphenous vein graft interposition.
- Published
- 2011
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30. Predictors of 2-Year Mortality and Risk Stratification After Surgical or Endovascular Revascularization of Infrainguinal Artery Disease in Hemodialysis Patients With Critical Limb Ischemia.
- Author
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Tatsuya Shiraki, Osamu Iida, Mitsuyoshi Takahara, Yoshimitsu Soga, Shinsuke Mii, Jin Okazaki, Sosei Kuma, Terutoshi Yamaoka, Daisuke Kamoi, Yoshiaki Shintani, Toshinobu Ishikawa, Ikuro Kitano, and Masaaki Uematsu
- Abstract
Purpose: To examine the 2-year mortality in hemodialysis (HD) patients with critical limb ischemia (CLI) and determine predictors that may aid in the selection of a revascularization strategy [bypass surgery or endovascular therapy (EVT)] according to current guidelines. Methods: From 2007 to 2009, 246 consecutive CLI patients (mean age 69±10 years; 170 men) on HD underwent revascularization for de novo infrainguinal lesions (178 EVT and 68 bypass grafting). The majority of the patients had diabetes (170, 69%) and tissue loss (194, 79%); nearly half (111, 45%) were nonambulatory. Overall survival after revascularization was estimated by Kaplan-Meier analysis. Predictors for 2-year mortality after revascularization were determined using a Cox proportional hazards model; results are given as the hazard ratio (HR) and 95% confidence interval (CI). Results: Overall survival rate was 77% at 1 year and 66% at 2 years. Predictors of 2-year mortality after revascularization were age >75 years (HR 1.82, 95% CI 1.14 to 2.91, p=0.012), albumin <3 g/dL (HR 2.31, 95% CI 1.39 to 3.84, p=0.001), and ejection fraction <50% (HR 1.73, 95% CI 1.06 to 2.83, p=0.027). Patients with more predictors had a higher incidence of death within 2 years after revascularization. Conclusion: Advanced age, low albumin level, and low ejection fraction were independently associated with 2-year mortality after revascularization in HD patients with CLI. Risk stratification by these factors would be useful for deciding on a revascularization strategy. [ABSTRACT FROM AUTHOR]
- Published
- 2015
- Full Text
- View/download PDF
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