scholarly journals Impact of diabetes mellitus on the early phase arterial healing after drug-eluting stent implantation: a multicenter coronary angioscopic study

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
T Ishihara ◽  
Y Sotomi ◽  
T Tsujimura ◽  
S Okuno ◽  
O Iida ◽  
...  

Abstract Background Diabetes mellitus (DM) is a strong risk factor for major cardiac and cerebrovascular events. In particular, coronary artery disease with DM is often complicated with complex lesions. Drug-eluting stents (DES) are mainly used for these lesions, and dual-antiplatelet therapy (DAPT) has been used to prevent stent thrombosis. Early arterial healing after DES implantation may enable short DAPT strategy. However, the impact of DM on the arterial healing in the early phase has not been elucidated to date. Purpose We evaluated the arterial healing in the early phase after DES implantation using coronary angioscopy (CAS) and compared the findings between DM and non-DM patients. Methods This study was a multicenter retrospective observational study. We analyzed CAS findings of 337 lesions from 270 patients which were evaluated 3 to 5 months after DES implantation. Patients were divided into two groups: DM (149 lesions in 118 patients) versus non-DM groups (188 lesions in 152 patients). We assessed neointimal coverage (NIC) grades (maximum, minimum and dominant), thrombus adhesion and maximum yellow color of plaque underneath the stent. NIC was graded as follows: grade 0, stent struts were not covered; grade 1, stent struts were covered by thin layer; grade 2, stent struts were buried under neointima. Yellow color was graded as follows: grade 0, white; grade 1, light yellow; grade 2, yellow; grade 3, intensive yellow. Results Minimum NIC coverage grade was lower in DM group than in non-DM group (P=0.002, Figure), while maximum and dominant NIC coverage grades were similar between them (P=0.94 and P=0.59, respectively). Thrombus adhesion (44.3% versus 38.8%, P=0.32) and maximum yellow color grade (P=0.78) were also similar between DM and non-DM groups. Even after the adjustment by the confounding factors such as follow-up duration and primary disease of acute coronary syndrome, DM was an independent factor predicting grade 0 of minimum NIC (odds ratio [OR] 1.83 [95% confidence interval 1.11–3.03], P=0.019). Conclusion DM patients showed less covered struts than non-DM patients 3 to 5 months after DES implantation, suggesting that the recent ultra-short DAPT strategy might not be easily applicable to DM patients. Minimum neointimal coverage grade Funding Acknowledgement Type of funding source: None

2020 ◽  
Vol 19 (1) ◽  
Author(s):  
Takayuki Ishihara ◽  
Yohei Sotomi ◽  
Takuya Tsujimura ◽  
Osamu Iida ◽  
Tomoaki Kobayashi ◽  
...  

Abstract Background Early arterial healing after drug-eluting stent (DES) implantation may enable short dual-antiplatelet therapy (DAPT) strategy. The impact of diabetes mellitus (DM) on this healing has not been elucidated. We used coronary angioscopy (CAS) to compare intravascular status of DM and non-DM patients in the early phase after DES implantation. Methods This study was a multicenter retrospective observational study. We analyzed CAS findings of 337 lesions from 270 patients evaluated 3–5 months after DES implantation. We divided the lesion into two groups: DM (n = 149) and non-DM (n = 188). We assessed neointimal coverage (NIC) grades (dominant, maximum and minimum), thrombus adhesion and maximum yellow color grade. NIC was graded as follows: grade 0, stent struts were not covered; grade 1, stent struts were covered by thin layer; grade 2, stent struts were buried under neointima. Yellow color was graded as grade 0, white; grade 1, light yellow; grade 2, yellow; grade 3, intensive yellow. Results Minimum NIC grade was significantly lower in DM than in non-DM groups (p = 0.002), whereas dominant and maximum NIC grades were similar between them (p = 0.59 and p = 0.94, respectively), as were thrombus adhesion (44.3% vs. 38.8%, p = 0.32) and maximum yellow color grade (p = 0.78). A multivariate analysis demonstrated that DM was an independent predictor of minimum NIC of grade 0 (odds ratio: 2.14, 95% confidence interval: 1.19–3.86, p = 0.011). Conclusions DM patients showed more uncovered struts than non-DM patients 3–5 months after DES implantation, suggesting that the recent ultra-short DAPT strategy might not be easily applied to DM patients.


2020 ◽  
Author(s):  
Takayuki Ishihara ◽  
Yohei Sotomi ◽  
Takuya Tsujimura ◽  
Osamu Iida ◽  
Tomoaki Kobayashi ◽  
...  

Abstract Background: Early arterial healing after drug-eluting stent (DES) implantation may enable short dual-antiplatelet therapy (DAPT) strategy. The impact of diabetes mellitus (DM) on this healing has not been elucidated. We used coronary angioscopy (CAS) to compare intravascular status of DM and non-DM patients in the early phase after DES implantation.Methods: This study was a multicenter retrospective observational study. We analyzed CAS findings of 337 lesions from 270 patients evaluated 3-5 months after DES implantation. We divided the lesion into two groups: DM (n=149) and non-DM (n=188). We assessed neointimal coverage (NIC) grades (dominant, maximum and minimum), thrombus adhesion and maximum yellow color grade. NIC was graded as follows: grade 0, stent struts were not covered; grade 1, stent struts were covered by thin layer; grade 2, stent struts were buried under neointima. Yellow color was graded as grade 0, white; grade 1, light yellow; grade 2, yellow; grade 3, intensive yellow.Results: Minimum NIC grade was significantly lower in DM than in non-DM groups (p=0.002), whereas dominant and maximum NIC grades were similar between them (p=0.59 and p=0.94, respectively), as were thrombus adhesion (44.3% vs. 38.8%, p=0.32) and maximum yellow color grade (p=0.78). A multivariate analysis demonstrated that DM was an independent predictor of minimum NIC of grade 0 (odds ratio: 2.14, 95% confidence interval: 1.19-3.86, p=0.011).Conclusion: DM patients showed more uncovered struts than non-DM patients 3-5 months after DES implantation, suggesting that the recent ultra-short DAPT strategy might not be easily applied to DM patients.


2020 ◽  
Author(s):  
Takayuki Ishihara ◽  
Yohei Sotomi ◽  
Takuya Tsujimura ◽  
Osamu Iida ◽  
Tomoaki Kobayashi ◽  
...  

Abstract Background: Early arterial healing after drug-eluting stent (DES) implantation may enable short dual-antiplatelet therapy (DAPT) strategy. The impact of diabetes mellitus (DM) on this healing has not been elucidated. We used coronary angioscopy (CAS) to compare intravascular status of DM and non-DM patients in the early phase after DES implantation.Methods: This study was a multicenter retrospective observational study. We analyzed CAS findings of 337 lesions from 270 patients evaluated 3-5 months after DES implantation. We divided the lesion into two groups: DM (n=149) and non-DM (n=188). We assessed neointimal coverage (NIC) grades (dominant, maximum and minimum), thrombus adhesion and maximum yellow color grade. NIC was graded as follows: grade 0, stent struts were not covered; grade 1, stent struts were covered by thin layer; grade 2, stent struts were buried under neointima. Yellow color was graded as grade 0, white; grade 1, light yellow; grade 2, yellow; grade 3, intensive yellow.Results: Minimum NIC grade was significantly lower in DM than in non-DM groups (p=0.002), whereas dominant and maximum NIC grades were similar between them (p=0.59 and p=0.94, respectively), as were thrombus adhesion (44.3% vs. 38.8%, p=0.32) and maximum yellow color grade (p=0.78). A multivariate analysis demonstrated that DM was an independent predictor of minimum NIC of grade 0 (odds ratio: 2.14, 95% confidence interval: 1.19-3.86, p=0.011).Conclusion: DM patients showed more uncovered struts than non-DM patients 3-5 months after DES implantation, suggesting that the recent ultra-short DAPT strategy might not be easily applied to DM patients.


2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
T Tsujimura ◽  
T Ishihara ◽  
O Iida ◽  
M Asai ◽  
M Masuda ◽  
...  

Abstract Background Polymer-free biolimus A9-coated stent (DCS) has currently emerged as expected better arterial healing compared to durable polymer drug-eluting stent (DP-DES). However, superiority of DCS on arterial healing over DP-DES has not been well elucidated using intracoronary images. Methods This study examined 288 stents in 224 patients with de novo coronary artery lesions. We angioscopically compared 55 DCS from 35 patients with 233 DP-DES from 189 patients 10±2 months after the implantation. We assessed thrombus adhesion, which is a marker of incomplete re-endothelialization. Dominant neointimal coverage (NIC) grade, heterogeneity of NIC and maximum yellow color of plaque underneath the stent were also evaluated. Neointimal coverage was graded as follows: grade 0, stent struts exposed; grade 1, struts bulged into the lumen, although covered; grade 2, struts embedded by the neointima, but translucent; grade 3, struts fully embedded and invisible. NIC was judged as heterogeneous when differences in the NIC grade became apparent. Yellow plaque was graded as follows: grade 0, white; grade 1, light yellow; grade 2, yellow; grade 3, intensive yellow. Results Thrombus adhesion was similar between DCS and DP-DES (29% versus 23%, P=0.32). Dominant NIC was greater in DCS than in BP-DES (P<0.001), while NIC was more heterogeneous in DCS than in BP-DES (P=0.001, Figure). Maximum yellow color of stented segment was similar between DCS and DP-DES (P=0.09). Conclusion DCS provided similar thrombus adhesion to DP-DES, which suggested similar re-endothelialization 10 months after implantation. However, DCS showed thick and heterogeneous NIC compared to DP-DES. The specific feature of polymer-free and Biolimus A9 would cause the difference, and further investigation is necessary to evaluate the longer-term safety and efficacy. Acknowledgement/Funding None


2021 ◽  
Vol 42 (Supplement_1) ◽  
Author(s):  
J Wohrle ◽  
B Scheller ◽  
J Seeger ◽  
A Farah ◽  
A Ohlow ◽  
...  

Abstract Objectives To evaluate the impact of diabetes mellitus on 3 year clinical outcome in patients undergoing drug-coated balloon (DCB) or drug-eluting stent (DES) treatment for de-novo lesions. Background For the treatment of de-novo coronary small vessel disease DCB are non-inferior to DES regarding clinical outcome up to 3 years. Methods In this prespecified analysis of a multicenter, randomized, non-inferiority trial, including 758 patients with de-novo lesions in coronary vessels &lt;3mm who were randomized 1:1 to DCB (n=382) or DES (n=376) and followed over 3 years for major adverse cardiac events (MACE: cardiac death, non-fatal myocardial infarction [MI], and target-vessel revascularization [TVR]), outcome was analyzed regarding the presence or absence of diabetes mellitus. Results In non-diabetic patients (n=506) rates of MACE (13.0% vs. 11.5%, hazard ratio [HR] 1.24, 95% confidence interval [CI] 0.73–2.09, p=0.43), cardiac death (2.8% vs. 2.9%, HR 0.97, 95% CI 0.32–2.92, p=0.96), non-fatal MI (5.1% vs. 4.8%, HR 1.00, 95% CI 0.44–2.28, p=0.99), and TVR (8.8% vs. 6.1%, HR 1.64, 95% CI 0.83–3.25, p=0.16) were similar in DCB and DES. In diabetic patients (n=252) rates of MACE (19.3% vs. 22.2%, HR 0.82, 95% CI 0.45–1.48, p=0.51), cardiac death (8.8% vs. 5.9%, HR 2.01, 95% CI 0.76–5.31, p=0.16), non-fatal MI (7.1% vs. 9.8%, HR 0.55, 95% CI 0.21–1.49, p=0.24) were similar in DCB and DES, whereas TVR was significantly lower with DCB compared to DES (9.1% vs. 15.0%, HR 0.40, 95% CI 0.17–0.94, p=0.036). In addition, need for TVR was highest in diabetic patients treated with DES (Picture 1). Conclusions The rates of MACE are similar in DCB and DES in de-novo coronary lesions of diabetic and non-diabetic patients. In diabetic patients the need for TVR was significantly lower with DCB compared to DES. FUNDunding Acknowledgement Type of funding sources: Foundation. Main funding source(s): Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, Basel Cardiovascular Research Foundation, and B Braun Medical AG. Picture 1


2013 ◽  
Vol 62 (18) ◽  
pp. B7
Author(s):  
Elvin Kedhi ◽  
Philippe Genereux ◽  
Tullio Palmerini ◽  
Tom McAndrew ◽  
Helen Parise ◽  
...  

2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
M Ichikawa ◽  
Y Kijima

Abstract Background Vascular response after drug-eluting stent (DES) implantation depends not only on stent design but also on vulnerability of target coronary lesions. In this study, non-obstructive coronary angioscopy (CAS) revealed vascular response after two types of biodegradable polymer (BP) DES implantation into patients with acute coronary syndrome (ACS) or stable angina pectoris (SAP). Methods Eighteen Nobori BP biolimus-eluting stents (BP-BES) were successfully implanted into 15 patients (9 ACS and 9 SAP lesions). Twenty-three Ultimaster BP sirolimus-eluting stents (BP-SES) were implanted into 16 patients (6 ACS and 17 SAP lesions). At one year after stenting, CAS semi-quantified degree of neointimal stent coverage (NSC) into 4 grades (0, no coverage; 1, thin coverage; 2, thick coverage; 3, embedded in thick neointima and invisible). When NSC through a stent was composed of plural grades, CAS determined dominant, maximum and minimum NSC grades. Heterogeneity index was defined as subtraction of minimum from maximum grade. CAS also semi-quantified degree of yellow plaques (YP) into 3 grades (0, light; 1, dense; 2, glittering yellow). CAS detected presence of in-stent mural thrombi (ISMT). Results At one year after BP-BES implantation: 1) There was no significant difference with regards to dominant NSC between ACS and SAP lesions (1.00±0.50 vs. 0.89±0.60); 2) Heterogeneity index was greater in ACS than in SAP (1.22±0.44 vs. 0.67±0.50, P=0.02); 3) YP grade was greater in ACS than in SAP (1.89±0.33 vs. 1.00±1.00, P=0.02); and 4) We found one ISMT in ACS lesions and two ISMT in SAP lesions. At one year after BP-SES implantation: 1) There was neither significant difference between ACS and SAP lesions with regards to dominant NSC (1.67±1.21 vs. 1.53±1.01), with regards to heterogeneity index (0.50±0.55 vs. 0.35±0.49), nor with regards to YP grade (1.33±1.51 vs. 0.88±0.99); and 2) We found ISMT neither in ACS nor in SAP lesions. Conclusions For BP-SES implantation, vascular response at ACS lesions was similar to SAP lesions. Even one year after BP-BES implantation, however, plaque vulnerability appeared to remain in ACS lesions.


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