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1.
Cardiovasc Drugs Ther ; 37(4): 729-741, 2023 08.
Article in English | MEDLINE | ID: mdl-35441926

ABSTRACT

PURPOSE: This study evaluated whether patient support, administered via an electronic device-based app, increased adherence to treatment and lifestyle changes in patients with acute coronary syndrome (ACS) treated with ticagrelor in routine clinical practice. METHODS: Patients (aged ≥ 18 years) with diagnosed ACS treated with ticagrelor co-administered with low-dose acetylsalicylic acid were randomized into an active group (with support tool app for medication intake reminders and motivational messages) and a control group (without support tool app), and observed for 48 weeks (ClinicalTrials.gov Identifier: NCT02615704). Patients were asked to complete the 36-item Short-Form Health Survey (SF-36) and Lifestyle Changes Questionnaire (LSQ), and were assessed for blood pressure and body mass index (BMI) at baseline (visit 1) and at the end of the study (visit 2). Medication adherence was measured using the Brilique Adherence Questionnaire (BAQ). RESULTS: Patients (N = 676) were randomized to an active (n = 342) or a control (n = 334) group. BAQ data were available for 174 patients in the active group and 174 patients in the control group. Over the 48-week period, mean (standard deviation) adherence for the active and control groups was 96.4% (13.2%) and 91.5% (23.1%), respectively (effect of app intervention, p < 0.05). There were no significant differences in blood pressure and BMI between visits. General improvements in SF-36 and LSQ scores were observed for both groups. CONCLUSION: The patient support tool app was associated with significant improvements in patient-reported treatment adherence compared with a data collection app alone in patients prescribed ticagrelor for ACS.


Subject(s)
Acute Coronary Syndrome , Smartphone , Humans , Ticagrelor/therapeutic use , Acute Coronary Syndrome/diagnosis , Acute Coronary Syndrome/drug therapy , Medication Adherence , Aspirin/therapeutic use
2.
J Am Coll Cardiol ; 75(21): 2664-2678, 2020 06 02.
Article in English | MEDLINE | ID: mdl-32466881

ABSTRACT

BACKGROUND: In patients with coronary in-stent restenosis (ISR) requiring reintervention, it is unclear if the choice of treatment should depend on whether the restenotic stent was a bare-metal stent (BMS) or a drug-eluting stent (DES). OBJECTIVES: This study aimed to assess the comparative efficacy and safety of the 2 most frequently used treatments - angioplasty with drug-coated balloon (DCB) and repeat stenting DES - in patients with BMS-and DES-ISR. METHODS: The DAEDALUS (Difference in Antirestenotic Effectiveness of Drug-Eluting Stent and Drug-Coated Balloon Angioplasty for the Occurrence of Coronary In-Stent Restenosis) study was a pooled analysis of individual patient data from all 10 existing randomized clinical trials comparing DCB angioplasty with repeat DES implantation for the treatment of coronary ISR. In this pre-specified analysis, patients were stratified according to BMS- versus DES-ISR and treatment assigned. The primary efficacy endpoint was target lesion revascularization (TLR) at 3 years. The primary safety endpoint was a composite of all-cause death, myocardial infarction, or target lesion thrombosis at 3 years. Primary analysis was performed by mixed-effects Cox models accounting for the trial of origin. Secondary analyses included nonparsimonious multivariable adjustment accounting also for multiple lesions per patient and 2-stage analyses. RESULTS: A total of 710 patients with BMS-ISR (722 lesions) and 1,248 with DES-ISR (1,377 lesions) were included. In patients with BMS-ISR, no significant difference between treatments was observed in terms of primary efficacy (9.2% vs. 10.2%; hazard ratio [HR]: 0.83; 95% confidence interval [CI]: 0.51 to 1.37) and safety endpoints (8.7% vs. 7.5%; HR: 1.13; 95% CI: 0.65 to 1.96); results of secondary analyses were consistent. In patients with DES-ISR, the risk of the primary efficacy endpoint was higher with DCB angioplasty than with repeat DES implantation (20.3% vs. 13.4%; HR: 1.58; 95% CI: 1.16 to 2.13), whereas the risk of the primary safety endpoint was numerically lower (9.5% vs. 13.3%; HR: 0.69; 95% CI: 0.47 to 1.00); results of secondary analyses were consistent. Regardless of the treatment used, the risk of TLR was lower in BMS- versus DES-ISR (9.7% vs. 17.0%; HR: 0.56; 95% CI: 0.42 to 0.74), whereas safety was not significantly different between ISR types. CONCLUSIONS: At 3-year follow-up, DCB angioplasty and repeat stenting with DES are similarly effective and safe in the treatment of BMS-ISR, whereas DCB angioplasty is significantly less effective than repeat DES implantation in the treatment DES-ISR, and associated with a nonsignificant reduction in the primary composite safety endpoint. Overall, DES-ISR is associated with higher rates of treatment failure and similar safety compared with BMS-ISR.


Subject(s)
Angioplasty, Balloon, Coronary/mortality , Coronary Restenosis/therapy , Drug-Eluting Stents , Humans , Randomized Controlled Trials as Topic
3.
EuroIntervention ; 15(17): 1527-1533, 2020 Apr 17.
Article in English | MEDLINE | ID: mdl-31659986

ABSTRACT

AIMS: Drug-coated balloons (DCB) may avoid stent-associated long-term complications. This trial compared the clinical outcomes of patients with non-ST-elevation myocardial infarction (NSTEMI) treated with either DCB or stents. METHODS AND RESULTS: A total of 210 patients with NSTEMI were enrolled in a randomised, controlled, non-inferiority multicentre trial comparing a paclitaxel iopromide-coated DCB with primary stent treatment. The main inclusion criterion was an identifiable culprit lesion without angiographic evidence of large thrombus. The primary endpoint was target lesion failure (TLF; combined clinical endpoint consisting of cardiac or unknown death, reinfarction, and target lesion revascularisation) after nine months. Secondary endpoints included total major adverse cardiovascular events (MACE) and individual clinical endpoints. Mean age was 67±12 years, 67% were male, 62% had multivessel disease, and 31% were diabetics. One hundred and four patients were randomised to DCB, 106 to stent treatment. In the stent group, 56% of patients were treated with BMS, 44% with current-generation DES. In the DCB group, 85% of patients were treated with DCB only whereas 15% underwent additional stent implantation. During a follow-up of 9.2±0.7 months, DCB treatment was non-inferior to stent treatment with a TLF rate of 3.8% versus 6.6% (intention-to-treat, p=0.53). There was no significant difference between BMS and current-generation DES. The total MACE rate was 6.7% for DCB versus 14.2% for stent treatment (p=0.11), and 5.9% versus 14.4% in the per protocol analysis (p=0.056), respectively. CONCLUSIONS: In patients with NSTEMI, treatment of coronary de novo lesions with DCB was non-inferior to stenting with BMS or DES. These data warrant further investigation of DCB in this setting, in larger trials with DES as comparator (ClinicalTrials.gov Identifier: NCT01489449).


Subject(s)
Angioplasty, Balloon, Coronary/methods , Cardiovascular Agents/administration & dosage , Coronary Restenosis/prevention & control , Coronary Vessels/diagnostic imaging , Drug-Eluting Stents , Non-ST Elevated Myocardial Infarction/surgery , Paclitaxel/administration & dosage , Sirolimus/administration & dosage , Stents , Aged , Aged, 80 and over , Coronary Restenosis/diagnostic imaging , Coronary Restenosis/epidemiology , Female , Humans , Male , Metals , Middle Aged , Paclitaxel/therapeutic use , Prosthesis Design , Treatment Outcome , Ultrasonography, Interventional
5.
Clin Cardiol ; 42(11): 1054-1062, 2019 Nov.
Article in English | MEDLINE | ID: mdl-31490566

ABSTRACT

A novel smartphone-based patient support tool was developed to increase the adherence to antiplatelet therapy and lifestyle changes in patients after coronary angioplasty for acute coronary syndrome (ACS). The eMocial study (ClinicalTrials.gov Identifier: NCT02615704) investigates whether an electronic support tool will improve adherence to comedication and lifestyle changes in ACS patients. The primary hypothesis of this trial is that an electronic support tool can increase adherence to comedication (primary endpoint) thereby supporting positive lifestyle changes (secondary endpoints). Patients hospitalized with ACS (ST elevation myocardial infarction [STEMI], non-ST elevation myocardial infarction [NSTEMI], or unstable angina pectoris) and treated with ticagrelor coadministered with low-dose acetylsalicylic acid will be randomized 1:1 to an active group receiving the patient support tool via a smartphone-based application or to a control group without the patient support tool. Patient questionnaires to evaluate lifestyle changes and quality of life will be used at baseline and at the end of the 48-week observation phase. Patients are asked to fill out questionnaires to determine their adherence, treatment attitudes, health-care utilization and risk factors on a monthly basis. The study was started in February 2016 and the completion date is scheduled for October 2019. For final analysis 664 patients are expected be available. Preliminary baseline demographics were unstable angina pectoris (13.7%), NSTEMI (49.9%), STEMI (36.4%), male gender (86.3%), and diabetes mellitus (17.6%). Our study could significantly help to understand how inadequate adherence to antiplatelet therapy in ACS patients could be improved with a smartphone-based application.


Subject(s)
Acute Coronary Syndrome/therapy , Patient Compliance , Smartphone , Telemedicine/methods , Ticagrelor/therapeutic use , Angioplasty, Balloon, Coronary/methods , Electrocardiography , Female , Follow-Up Studies , Humans , Male , Middle Aged , Platelet Aggregation Inhibitors/therapeutic use , Postoperative Period , Quality of Life , Retrospective Studies , Surveys and Questionnaires , Time Factors , Treatment Outcome
6.
Clin Res Cardiol ; 105(7): 613-21, 2016 Jul.
Article in English | MEDLINE | ID: mdl-26768146

ABSTRACT

OBJECTIVES: We set out to investigate the benefit of distal main or side branch treatment with a DCB compared to POBA in coronary bifurcation lesions. BACKGROUND: The standard treatment of bifurcation lesions is application of a DES to the main branch with provisional side branch stenting. While this resulted in considerable improvement in overall MACE rate suboptimal side branch results remained a problem. METHODS: The study was performed from 2011 to 2013 in six German centers. Native bifurcation lesions were included if side branch vessel diameter was ≥2 and ≤3.5 mm and no proximal main branch lesions was found. After successful predilatation randomization was performed to either DCB application or no further treatment. Follow-up angiograms for QCA analysis were done after 9 months. Primary endpoint was late lumen loss (LLL). RESULTS: 64 patients were successfully randomized. Minimal lumen diameter and grade of stenosis were equal in both groups. Only five stents were used as bail out. Angiographic follow-up was achieved in 75 % of patients. No patient died. There was one NSTEMI in the POBA group. Restenosis rate was 6 % in the DCB group vs 26 % in the POBA group (p = 0.045). TLR was necessary in one patient of the DCB group vs three patients of the POBA. The primary endpoint LLL was 0.13 mm in the DCB vs 0.51 mm in the POBA group (p = 0.013). CONCLUSION: In bifurcation lesions that show only class A or B dissection and recoil not beyond 30 % the use of DCBs is a sound strategy.


Subject(s)
Angioplasty, Balloon, Coronary/instrumentation , Cardiac Catheters , Cardiovascular Agents/administration & dosage , Coated Materials, Biocompatible , Coronary Stenosis/therapy , Paclitaxel/administration & dosage , Aged , Angioplasty, Balloon, Coronary/adverse effects , Cardiovascular Agents/adverse effects , Coronary Angiography , Coronary Stenosis/diagnostic imaging , Equipment Design , Female , Germany , Humans , Male , Middle Aged , Paclitaxel/adverse effects , Severity of Illness Index , Stents , Time Factors , Treatment Outcome
7.
EuroIntervention ; 11(8): 926-34, 2015 Dec.
Article in English | MEDLINE | ID: mdl-25169589

ABSTRACT

AIMS: Treatment of bare metal in-stent restenosis with the paclitaxel-coated balloon catheter based on the PACCOCATH® technology has yielded superior six-month angiographic and one-year clinical results compared to a paclitaxel-eluting stent. The three-year clinical follow-up is presented. METHODS AND RESULTS: One hundred and thirty-one patients with coronary bare metal in-stent restenosis (>70%, length: <22 mm, vessel diameter: 2.5-3.5 mm) were randomly treated with the paclitaxel-coated balloon (DCB) (3 µg/mm²) or a paclitaxel-eluting stent (DES). Clinical follow-up information was requested from the patients and from their physicians. Quantitative angiographic and demographic baseline data were statistically not different between the groups. Per intention-to-treat analysis at 12 months, the lesion-related rates of major adverse cardiac events were 7.6% and 16.9% (p=0.11) while at 36 months the respective numbers were 9.1% and 18.5% (p=0.14). These differences were primarily due to reduced target lesion revascularisation (TLR) in DCB 4/66 (6.2%) compared to DES patients 10/65 (15.4%) (p=0.10). From 12 to 36 months, 1/65 (1.5%) DCB patients experienced a myocardial infarction while neither TLR nor death occurred in any study patient in either group during that period. CONCLUSIONS: The six-month superiority of the paclitaxel-coated balloon compared to the paclitaxel-eluting stent in the treatment of bare metal coronary in-stent restenosis persisted throughout the three-year clinical follow-up period indicating stability of the lesions treated. (ClinicalTrials.gov Identifier: NCT00393315).


Subject(s)
Angioplasty, Balloon, Coronary/instrumentation , Cardiovascular Agents/administration & dosage , Coated Materials, Biocompatible , Coronary Artery Disease/therapy , Coronary Restenosis/therapy , Drug-Eluting Stents , Paclitaxel/administration & dosage , Percutaneous Coronary Intervention/adverse effects , Percutaneous Coronary Intervention/instrumentation , Stents , Vascular Access Devices , Aged , Angioplasty, Balloon, Coronary/adverse effects , Coronary Angiography , Coronary Artery Disease/diagnosis , Coronary Restenosis/diagnosis , Coronary Restenosis/etiology , Disease-Free Survival , Female , Germany , Humans , Intention to Treat Analysis , Kaplan-Meier Estimate , Male , Metals , Middle Aged , Myocardial Infarction/etiology , Platelet Aggregation Inhibitors/therapeutic use , Prosthesis Design , Retreatment , Time Factors , Treatment Outcome
8.
Indian Heart J ; 65(5): 510-7, 2013.
Article in English | MEDLINE | ID: mdl-24206873

ABSTRACT

INTRODUCTION: The paclitaxel-coated balloon catheter (DCB) based on the PACCOCATH(®) technology has yielded angiographic and clinical results superior to drug-eluting stents (DES) in situations like in-stent restenosis (ISR) and a trend towards superior results in small coronary vessels and side branches of coronary bifurcations. Using the DCB followed by cobalt-chromium stent (CoCr) deployment or with a reverse sequence may yield different outcomes in terms of late loss. METHODS: 97 patients with de-novo coronary stenosis (55.6 ± 10.7 years, 79.4% male, ≥70%, length: ≤25 mm, vessel diameter: 2.5-4.0 mm) were randomly treated with the DCB (3 µg/mm²) followed by a CoCr-stent or stent first and DCB later. Six-month angiographic and one-year clinical follow-up intention-to-treat analyses were performed. RESULTS: Angiographic and demographic baseline data was comparable between the two groups. When comparing balloon first versus stent first technique, the primary outcome variables were not statistically different for mean in-segment (0.51 ± 0.56 mm vs. 0.36 ± 0.55 mm, p = 0.23) and in-stent (0.52 ± 0.55 mm vs. 0.46 ± 0.52 mm, p = 0.65) late lumen loss. The lesion related 12-month MACE rates were 5/49 (10.2%) and 2/48 (4.2%) (p = 0.44). Lesion related thrombotic events occurred in three patients in balloon first and in one patient in stent first group, two of which were associated with early discontinuation of continuous dual anti-platelet therapy, two with suboptimal PCI, and one each were performed in a thrombotic lesion and a bifurcation type 1.1.0. CONCLUSION: Drug-coated balloon first followed by cobalt chromium stent deployment versus a reverse sequence is not associated with statistically significantly different 6-month angiographic or 12-month clinical outcomes.


Subject(s)
Angioplasty, Balloon, Coronary/instrumentation , Coronary Restenosis/diagnostic imaging , Coronary Stenosis/diagnostic imaging , Coronary Stenosis/therapy , Drug-Eluting Stents , Paclitaxel/pharmacology , Aged , Angioplasty, Balloon, Coronary/adverse effects , Angioplasty, Balloon, Coronary/methods , Chromium/pharmacology , Cobalt/pharmacology , Coronary Angiography/methods , Coronary Restenosis/epidemiology , Coronary Stenosis/mortality , Female , Follow-Up Studies , Humans , Incidence , India , Male , Middle Aged , Prospective Studies , Risk Assessment , Severity of Illness Index , Survival Rate , Treatment Outcome
9.
EuroIntervention ; 9(5): 620-8, 2013 Sep.
Article in English | MEDLINE | ID: mdl-24058078

ABSTRACT

AIMS: The one-year outcome of lesions in small coronary arteries by using a paclitaxel-iopromide-coated (3 µg/mm²) balloon catheter (DCB) has yielded good six-month angiographic and one-year clinical data. We now report the three-year clinical follow-up. METHODS AND RESULTS: One hundred and twenty patients with >70% stenoses <22 mm in length in small coronary vessels (vessel diameter: 2.25-2.8 mm) were treated with the DCB. The primary endpoint was angiographic in-segment late lumen loss. The secondary endpoints encompassed all other angiographic and clinical data up to three years post intervention. In total 82/120 (68.3%) patients with a vessel diameter of 2.35±0.19 mm were treated with the DCB only, and 32/120 (26.7%) patients required additional bare metal stent (BMS) deployment. Both the 12- and 36-month major adverse cardiac event rates were 5/82 (6.1%) for DCB only and 12/32 (37.5%) for DCB+BMS, primarily due to the need for target lesion revascularisation in 4/82 (4.9%) patients and 9/32 (28.1%) (p<0.001) patients, respectively. Total MACE rate after 36 months was 18/120 (15%; intention-to-treat). CONCLUSIONS: Treatment of small vessel coronary artery disease with a paclitaxel-iopromide-coated balloon exhibited good six-month angiographic and one-year clinical data that persisted during the three-year follow-up period. Randomised trials will clarify its role as an alternative to drug-eluting stents in the treatment of small vessel coronary artery disease. (ClinicalTrials.gov Identifier: NCT00404144).


Subject(s)
Angioplasty, Balloon, Coronary , Coronary Artery Disease/therapy , Coronary Restenosis/therapy , Drug-Eluting Stents , Paclitaxel/therapeutic use , Aged , Angioplasty, Balloon, Coronary/methods , Cardiovascular Agents/therapeutic use , Female , Follow-Up Studies , Humans , Male , Middle Aged , Prosthesis Design , Time Factors , Treatment Outcome
10.
EuroIntervention ; 7 Suppl K: K83-92, 2011 May.
Article in English | MEDLINE | ID: mdl-22027736

ABSTRACT

AIMS: Coronary lesions in diabetics (DM) are associated with a high recurrence following percutaneous coronary intervention (PCI), even after drug-eluting stent (DES) deployment. Encouraging clinical data of the drug-eluting balloon catheter (DEB) SeQuent Please warrant its investigation in these patients. METHODS AND RESULTS: Eighty-four diabetic patients (60.8 ± 9.1 years, 76.2% male) were randomised to either the DEB SeQuent Please or the DES Taxus Liberté to compare the 9-month clinical and angiographic outcome of PCI in native coronary arteries. Comparing the DEB vs. the DES the 9-month results (follow-up DEB 39/45 [86.7%], DES 36/39 [92.3%]) are statistically not different at the 0.05 level for the primary endpoint of in-segment (0.37 ± 0.59 mm vs. 0.35 ± 0.63 mm) and in-stent (0.51 ± 0.61 mm vs. 0.53 ± 0.67 mm) late lumen loss, overall and cardiac deaths (2/45 [4.4%] and 3/45 [6.7%] vs. 0), target lesion revascularisation (3/45 [8.9%] vs. 4/39 [10.3%]), the total MACE rate (6/45 [13.3%] vs. 6/39 [15.4%]), and the event free survival after 10.2 ± 3.8 months (Kaplan-Meier analysis, p<0.80, log rank test). CONCLUSIONS: The clinical and angiographic outcome of the combination of the drug-eluting balloon SeQuent Please with a cobalt chromium stent compared to the drug eluting Taxus stent are similar.


Subject(s)
Angioplasty, Balloon, Coronary/instrumentation , Cardiovascular Agents/administration & dosage , Chromium Alloys , Coated Materials, Biocompatible , Coronary Stenosis/therapy , Diabetes Complications/therapy , Drug Delivery Systems/instrumentation , Drug-Eluting Stents , Paclitaxel/administration & dosage , Stents , Aged , Angioplasty, Balloon, Coronary/adverse effects , Angioplasty, Balloon, Coronary/mortality , Coronary Angiography , Coronary Restenosis/diagnostic imaging , Coronary Restenosis/etiology , Coronary Restenosis/prevention & control , Coronary Stenosis/diagnostic imaging , Coronary Stenosis/mortality , Diabetes Complications/diagnostic imaging , Diabetes Complications/mortality , Disease-Free Survival , Equipment Design , Female , Humans , Kaplan-Meier Estimate , Malaysia , Male , Middle Aged , Prospective Studies , Prosthesis Design , Thailand , Time Factors , Treatment Outcome
11.
J Interv Cardiol ; 23(2): 160-6, 2010 Apr.
Article in English | MEDLINE | ID: mdl-20236209

ABSTRACT

BACKGROUND AND OBJECTIVES: Paclitaxel-coated stents have proven their efficacy for reducing restenosis in de novo coronary artery lesions and in-stent restenoses with superiority compared to bare metal stents. This study was performed to evaluate the procedural and 1 year results of the Paclitaxel-eluting Coroflex Please stent in coronary artery lesions. METHODS: One-hundred and twenty-nine patients (66.2 +/- 8.2 years, 31.0% diabetics, 20.2% unstable angina, 41.8% multivessel disease) were enrolled per protocol for elective single stent deployment into native de novo or post-PTCA restenotic coronary lesions.The mean reference diameter was 2.84 +/- 0.43 mm, the lesion length 12.51 +/- 4.6 mm, and the minimal lumen diameter 0.75 +/- 0.29 mm. Follow-up was performed clinically in 129/129 (100%) after 6 and 12 months and angiographically in 120/129 (93%) patients after 6 months. RESULTS: The success rates of the procedure and deployment were 100% and 95.3%, respectively. The in-stent late loss and the late-loss index were 0.27 +/- 0.59 mm and 0.17 +/- 0.40 resulting in binary in-stent restenoses in 16/120 (13.3%) subjects and in-segment restenoses in 20/120 (16.7%) subjects. Major adverse cardiac events occurred in 23/129 (17.8%) during the first 6 months of follow-up with 3/129 (2.3%) myocardial infarctions, 1/129 (0.8%) secondary to stent thrombosis. From 6 to 12 months, 2/129 (1.6%) nonlesion related PCI were performed. CONCLUSION: The data of the Paclitaxel-eluting Coroflex Please stent evaluated in PECOPS II are within the range of the other currently available Paclitaxel-eluting stent.


Subject(s)
Coronary Angiography , Coronary Stenosis/diagnostic imaging , Coronary Stenosis/therapy , Drug-Eluting Stents , Paclitaxel/administration & dosage , Aged , Coronary Restenosis/etiology , Drug-Eluting Stents/adverse effects , Female , Follow-Up Studies , Heart Diseases/etiology , Humans , Male , Middle Aged , Prospective Studies , Severity of Illness Index , Time Factors , Treatment Outcome
12.
Clin Res Cardiol ; 99(3): 165-74, 2010 Mar.
Article in English | MEDLINE | ID: mdl-20052480

ABSTRACT

BACKGROUND: Treatment of lesions in small coronary arteries by percutaneous transluminal coronary intervention is limited by a high recurrence rate. We assessed the use of a paclitaxel-coated balloon in this indication. METHODS: One-hundred eighteen patients with stenoses in small coronary vessels were treated by a paclitaxel-coated balloon (3 microg/mm(2)). The main inclusion criteria encompassed diameter stenosis of > or =70% and < or =22 mm in length with a vessel diameter of 2.25-2.8 mm. Follow-up angiography was performed at scheduled 6-month post-intervention or whenever driven by clinical or electrocardiographic signs of ischemia. The primary endpoint was angiographic in-segment late lumen loss. RESULTS: Eighty-two of 118 patients (70%) with a vessel diameter of 2.35 +/- 0.19 mm were treated with the drug-coated balloon only, while 32 patients required additional stent deployment. The mean in-segment late lumen loss was 0.28 +/- 0.53 mm. In patients treated with the drug-coated balloon only, the in-segment late lumen loss was 0.16 +/- 0.38 mm. At 12 months, the rate of major adverse cardiac events was 15% which was primarily due to the need for target lesion revascularization in 14 patients (12%). In those with additional bare metal stent implantation geographical mismatch between coated-balloon dilatation and stent implantation was significantly associated with the occurrence of restenosis. CONCLUSION: Treatment of coronary stenosis in small coronary vessels with the paclitaxel-coated balloon was well tolerated. It may offer an alternative to the implantation of a drug-eluting stent (ClinicalTrials.gov Identifier: NCT00404144).


Subject(s)
Catheterization/methods , Coronary Stenosis/therapy , Paclitaxel/pharmacology , Aged , Catheterization/adverse effects , Coronary Angiography , Coronary Restenosis/prevention & control , Female , Follow-Up Studies , Humans , Male , Middle Aged , Paclitaxel/adverse effects , Prospective Studies , Recurrence , Stents , Treatment Outcome
13.
Circulation ; 119(23): 2986-94, 2009 Jun 16.
Article in English | MEDLINE | ID: mdl-19487593

ABSTRACT

BACKGROUND: Treatment of in-stent restenosis with paclitaxel-coated balloon catheter as compared with plain balloon angioplasty has shown surprisingly low late lumen loss at 6 months and fewer major adverse cardiac events up to 2 years. We compared the efficacy and safety of a paclitaxel-coated balloon with a paclitaxel-eluting stent as the current standard of care. METHODS AND RESULTS: One hundred thirty-one patients with coronary in-stent restenosis were randomly assigned to treatment by a paclitaxel-coated balloon (3 microg/mm2) or a paclitaxel-eluting stent. The main inclusion criteria encompassed diameter stenosis of > or =70% and < or =22 mm in length, with a vessel diameter of 2.5 to 3.5 mm. The primary end point was angiographic in-segment late lumen loss. Quantitative coronary angiography revealed no differences in baseline parameters. At 6 months follow-up, in-segment late lumen loss was 0.38+/-0.61 mm in the drug-eluting stent group versus 0.17+/-0.42 mm (P=0.03) in the drug-coated balloon group, resulting in a binary restenosis rate of 12 of 59 (20%) versus 4 of 57 (7%; P=0.06). At 12 months, the rate of major adverse cardiac events were 22% and 9%, respectively (P=0.08). This difference was primarily due to the need for target lesion revascularization in 4 patients (6%) in the coated-balloon group, compared with 10 patients (15%) in the stent group (P=0.15). CONCLUSIONS: Treatment of coronary in-stent restenosis with the paclitaxel-coated balloon was at least as efficacious and as well tolerated as the paclitaxel-eluting stent. For the treatment of in-stent restenosis, inhibition of re-restenosis does not require a second stent implantation.


Subject(s)
Angioplasty, Balloon, Coronary , Coronary Restenosis/therapy , Drug-Eluting Stents , Paclitaxel/administration & dosage , Tubulin Modulators/administration & dosage , Aged , Angioplasty, Balloon, Coronary/adverse effects , Coronary Angiography , Coronary Restenosis/diagnostic imaging , Coronary Restenosis/prevention & control , Drug-Eluting Stents/adverse effects , Female , Follow-Up Studies , Humans , Male , Middle Aged , Platelet Aggregation Inhibitors/therapeutic use
14.
Catheter Cardiovasc Interv ; 74(5): 674-82, 2009 Nov 01.
Article in English | MEDLINE | ID: mdl-19530156

ABSTRACT

BACKGROUND: The evaluation of drug-eluting devices in humans should include longterm follow-up owing to risk of late target vessel thrombosis with the possible fatal sequel. METHODS AND RESULTS: Therefore, the three-year clinical outcome of the paclitaxel-eluting Corofiex Please stent in patients with de-novo coronary lesions was evaluated in the single-arm PECOPS I pilot study. The clinical data of 123/125 (98.4%) of all patients included were available 3.05 +/- 0.12 years following stent deployment. In the intention-to-treat analysis the incidence of cardiac death was 9/123 (7.3%), of myocardial infarction 4/123 (3.3%), and of in-segment target lesion revascularization 14/123 (11.4%). Target lesion revascularizations tended (p = 0.30) to occur less frequently (9/96 (16.6%)) in those patients in whom the stent length was longer than the lesion (4.80 +/- 2.71 mm) compared to 5/27 (18.5%) in those patients in whom the stent was shorter than the lesion (-3.0 +/- 2.43 mm). Stent thromboses occurred in 2/123 (1.6%) patients during the first 6 months, one of which two days after premature discontinuation of clopidogrel. The total 3-year MACE rate was 22/123 (17.9%). CONCLUSION: The present study describes the paclitaxel-eluting Corotlex Please stent as a safe device with good long term performance when deployed in native coronary arteries. The occurrence of late major adverse events and late thromboses in particular seem to be very low.


Subject(s)
Angioplasty, Balloon, Coronary/instrumentation , Cardiovascular Agents/administration & dosage , Coronary Stenosis/therapy , Drug-Eluting Stents , Paclitaxel/administration & dosage , Aged , Angioplasty, Balloon, Coronary/adverse effects , Angioplasty, Balloon, Coronary/mortality , Coronary Angiography , Coronary Stenosis/diagnostic imaging , Coronary Stenosis/mortality , Disease-Free Survival , Female , Follow-Up Studies , Germany , Humans , Male , Middle Aged , Myocardial Infarction/etiology , Pilot Projects , Platelet Aggregation Inhibitors/therapeutic use , Prospective Studies , Prosthesis Design , Risk Assessment , Severity of Illness Index , Thrombosis/etiology , Time Factors , Treatment Outcome
15.
Obesity (Silver Spring) ; 16(10): 2272-80, 2008 Oct.
Article in English | MEDLINE | ID: mdl-18719632

ABSTRACT

CM3, a highly cross-linked cellulose in capsule form, expands in the stomach to a size several fold of its original volume. It is purported to induce a prolonged feeling of satiation and a delay in gastric emptying, thus promoting weight loss. We examined whether CM3 delays gastric emptying (using the stable isotope (13)C-octanoic breath test) and whether it influences subjective feelings of appetite sensations (using visual analog scales, VASs). We performed a double-blind randomized placebo-controlled crossover trial in 19 moderately obese but otherwise healthy subjects (mean age 55 +/- 9 years, BMI 31.1 +/- 4.6 kg/m(2)). The subjects were treated with six capsules of CM3 or matching placebo 30 min before a standardized solid meal. Breath collection and VASs were performed over 4 h every 15 min and 30 min, respectively. Half-excretion time of (13)CO(2) in breath, indicating gastric emptying half time, was the primary outcome parameter. The study was powered to detect a change in gastric emptying of 20-30 min. Mean (13)CO(2) half-excretion time changed from 2.3 +/- 0.4 to 2.4 +/- 0.33 h (mean difference +6 min, 95% confidence interval (CI) -3 to +15 min; P = 0.17). Appetite sensations (hunger, satiation, fullness, prospective food consumption, desire to eat something sweet, salty, savory, or fatty) changed over time during the course of the postprandial phase but were not influenced by CM3 (repeated measures ANOVA). In obese subjects, acute administration of the weight-loss supplement CM3 does not delay gastric emptying and does not influence subjective appetite sensations.


Subject(s)
Appetite Depressants/therapeutic use , Appetite/drug effects , Cellulose/therapeutic use , Dietary Supplements , Gastric Emptying/drug effects , Obesity/drug therapy , Satiation/drug effects , Adult , Aged , Appetite Depressants/administration & dosage , Blood Glucose/drug effects , Breath Tests , Capsules , Cellulose/administration & dosage , Cross-Over Studies , Double-Blind Method , Female , Humans , Male , Middle Aged , Obesity/metabolism , Obesity/physiopathology , Postprandial Period , Surveys and Questionnaires , Time Factors , Treatment Outcome
16.
Clin Res Cardiol ; 96(11): 803-11, 2007 Nov.
Article in English | MEDLINE | ID: mdl-17701366

ABSTRACT

BACKGROUND: The alleged superiority of drug-eluting stents over bare metal devices and those with passive coatings is diminished by a higher incidence of late target vessel thrombosis. METHODS AND RESULTS: Therefore, the one-year clinical outcome of the paclitaxel-eluting Coroflex Please stent in patients with denovo coronary lesions was evaluated in the single-arm PECOPS I pilot study. The clinical data of 96/97 (99%) of the patients included per protocol and of 86/87 (98.9%) of those treated per protocol were available 13.1 +/- 1.8 months following stent deployment. In the inclusion and treatment per protocol groups the incidence of cardiac deaths was 1/96 (1%) and 1/86 (1.2%), of myocardial infarction 3/96 (3.1%) and 1/86 (1.2%), and of target lesion revascularization 9/96 (9.4%) and 8/86 (9.3%). In patients enrolled per protocol two early thromboses (2.1%) occurred one of which two days after premature discontinuation of clopidogrel. In patients treated per protocol one thrombosis was observed after 10 hours. The one-year event-free survival was 83/96 (86.5%) in patients enrolled per protocol and 75/86 (87.2%) in those treated per protocol. CONCLUSION: The one-year clinical outcome of PECOPS I was within the range of other paclitaxel-eluting coronary stents. The relative small number of patients enrolled in PECOPS I precludes to infer any further conclusions.


Subject(s)
Coronary Artery Disease/therapy , Drug-Eluting Stents/adverse effects , Paclitaxel/administration & dosage , Thrombosis/etiology , Tubulin Modulators/administration & dosage , Aged , Clopidogrel , Coronary Restenosis/prevention & control , Death , Female , Follow-Up Studies , Humans , Male , Middle Aged , Myocardial Infarction/etiology , Myocardial Revascularization , Pilot Projects , Platelet Aggregation Inhibitors/therapeutic use , Prospective Studies , Survival Rate , Ticlopidine/analogs & derivatives , Ticlopidine/therapeutic use
17.
Clin Res Cardiol ; 96(6): 383-8, 2007 Jun.
Article in English | MEDLINE | ID: mdl-17503114

ABSTRACT

INTRODUCTION: Rehabilitation in ambulatory heart groups has become a well established part of comprehensive cardiac treatment in Germany. Identifying patients at risk for cardiovascular symptoms is important for the efficiency and safety of the program. METHODS: Questionnaires were mailed to ambulatory heart groups in the state of Hessen, Germany, and returned by 1935/13 174 (15%) patients, age 65.9 +/- 7.6 years, 1504/1935 (77.7%) males, comprising approximately 674 000 patient exercise hours. RESULTS: 828 symptoms were reported by 538 patients, comprising dyspnea in 330/538 (61.3%), angina pectoris in 80/538 (14.9%), palpitation in 145/538 (27%), tachycardia in 59/538 (11%), dizziness in 152/538 (28.3%), fainting in 6/538 (1.1%), and others in 47/538 (8.7%). Cardiovascular symptoms occurred more frequently in patients presenting with overexertion (43/68 (63.2%), p < 0.0001, RR 4.77 [95% CI 3.01-7.56]), chronic heart failure (115/291 (39.5%) vs 419/1624 (25.8%), p < 0.0001, RR 1.88 [95% CI 1.45-2.43]), lower exercise capacity (1.49 +/- 0.4 vs 1.59 +/- 0.5 W/kg body weight, p = 0.0002, mean difference -0.096 [95% CI (-0.146) -(-0.046)]), hypertension (269/ 854 (31.5%) vs 266/1068 (24.9%), p = 0.001, RR 1.39 [95% CI 1.14-1.69]), and hyperlipidemia (280/ 907 (30.9%) vs 255/1015 (25.1%), p = 0.005, RR 1.33 [95% CI 1.09-1.63]). Cardiovascular symptoms were more frequent in women (141/431(32.7%) vs 397/1503 (26.4%), p = 0.01, RR 1.35 [95% CI 1.08-1.71]). Overexertion (p < 0.0001), heart failure (p = 0.003), and hypertension (p = 0.05) are significant independent predictors of cardiovascular symptoms, while female gender (p = 0.06), and hyperlipidemia (p = 0.07) are not as significant. Previous myocardial infarction and diabetes had no statistical significant impact on cardiovascular symptoms. CONCLUSION: Patients likely to experience cardiovascular symptoms in ambulatory rehabilitation can be identified by their medical history and perceived exertion.


Subject(s)
Cardiac Rehabilitation , Cardiovascular Diseases/etiology , Exercise , Adult , Aged , Aged, 80 and over , Ambulatory Care/statistics & numerical data , Body Weight , Cardiovascular Diseases/epidemiology , Cross-Sectional Studies , Female , Health Surveys , Heart Arrest/epidemiology , Heart Arrest/etiology , Humans , Male , Middle Aged , Physical Endurance , Physical Exertion , Risk Assessment , Sex Factors , Surveys and Questionnaires
18.
JAMA ; 295(19): 2262-9, 2006 May 17.
Article in English | MEDLINE | ID: mdl-16705107

ABSTRACT

CONTEXT: Policosanol is a natural substance derived from sugar cane that is advertised for its lipid-lowering effects as a nonprescription drug. More than 80 placebo-controlled or comparative trials, performed mostly by a single research institute, suggest that policosanol at doses of 5 to 40 mg/d has lipoprotein-lowering effects comparable with statins. OBJECTIVES: To determine the lipoprotein-lowering effects of Cuban sugar cane-derived policosanol and to establish, if effective, dose-dependency up to 80 mg/d in patients with hypercholesterolemia or combined hyperlipidemia. DESIGN, SETTING, AND PARTICIPANTS: A multicenter (lipid outpatient clinics and general practitioners in Germany), randomized, double-blind, placebo-controlled, parallel-group trial conducted from September 29, 2000, to May 10, 2001, of patients with hypercholesterolemia or combined hyperlipidemia having baseline low-density lipoprotein cholesterol (LDL-C) levels of at least 150 mg/dL (> or =3.88 mmol/L) and either no or 1 cardiovascular risk factor other than known coronary heart disease, or baseline LDL-C levels of between 150 and 189 mg/dL (3.88-4.89 mmol/L) and 2 or more risk factors. INTERVENTIONS: Open-label 6-week placebo and diet run-in phase followed by a double-blind 12-week treatment phase after randomization to 5 groups: 10, 20, 40, or 80 mg/d of policosanol or placebo. MAIN OUTCOME MEASURE: The percentage change of LDL-C, with changes in other lipoproteins as secondary outcome measures. RESULTS: A total of 143 patients were randomized to 5 equal groups and were analyzed on an intention-to-treat basis. In none of the 5 treatment groups did LDL-C levels decrease more than 10% from baseline. No statistically significant difference between policosanol and placebo was observed. A nonparametric test analyzing dose-dependency yielded nonsignificant results. In none of the secondary outcome measures, namely total cholesterol, high-density lipoprotein cholesterol (HDL-C), very low-density lipoprotein cholesterol, triglycerides, lipoprotein(a), and ratio of total or LDL-C to HDL-C, were there any significant effects of policosanol. Policosanol was tolerated well without serious adverse events. CONCLUSION: In patients with hypercholesterolemia or combined hyperlipidemia, the sugar cane-derived policosanol in usual and high doses does not demonstrate a reduction in lipid levels beyond placebo. TRIAL REGISTRATION: clinicaltrials.gov Identifier: NCT00288483.


Subject(s)
Anticholesteremic Agents/therapeutic use , Fatty Alcohols/therapeutic use , Hypercholesterolemia/drug therapy , Hyperlipidemias/drug therapy , Lipids/blood , Adult , Aged , Anticholesteremic Agents/administration & dosage , Double-Blind Method , Fatty Alcohols/administration & dosage , Female , Humans , Hypercholesterolemia/blood , Hyperlipidemias/blood , Male , Middle Aged
19.
Catheter Cardiovasc Interv ; 67(5): 703-10, 2006 May.
Article in English | MEDLINE | ID: mdl-16575926

ABSTRACT

BACKGROUND AND OBJECTIVES: Various active stent coatings significantly reduce restenosis rates and target lesion revascularization compared to bare metal stents. Therefore, the procedural and 6-month performance of the new paclitaxel-eluting Coroflex. Please stent was investigated. METHODS: Ninety-seven patients (66 +/- 7.6 years, 34/97(35.1%) diabetics, 11/97(11.3%) unstable angina) were enrolled per protocol for elective single stent deployment into native coronary de-novo or post-PTCA restenotic lesions (stenosis: >or= 70%, < 100%; reference diameter >or= 2.25 mm and <3.3 mm; lesion length

Subject(s)
Coronary Restenosis/prevention & control , Paclitaxel/administration & dosage , Stents , Aged , Coated Materials, Biocompatible , Coronary Angiography , Coronary Restenosis/diagnostic imaging , Drug Delivery Systems , Female , Follow-Up Studies , Humans , Male , Pilot Projects , Prospective Studies , Statistics, Nonparametric , Treatment Outcome
20.
J Interv Cardiol ; 18(5): 323-9, 2005 Oct.
Article in English | MEDLINE | ID: mdl-16202106

ABSTRACT

BACKGROUND: Stent design influences the procedural and mid-term results of coronary interventions. The trapezoid-shaped struts of the low pressure stent (LP-Stent) might improve the outcome by reducing the vascular trauma at deployment. METHODS: A total of 133 patients (64.5+/-8.6 years) with significant de novo coronary lesions (reference diameter >or=2.8 mm, length <15 mm, and stenosis >or=70% and <100%) were enrolled for single stent deployment and a 6-month clinical and angiographic follow-up. RESULTS: Stents were successfully deployed to 131/133 (98.5%) lesions. In one failed procedure (0.8%), the stenosis could be crossed with another device whereas in the second alternative stents also failed. Following edge dissection after LP-Stent implantation, in 9/133 (6.8%) patients additional stents were deployed. Follow-up was performed as scheduled after 5.9+/- 0.9 months in 98/122 (80.3%) patients, prematurely for in-stent restenosis in 8/122 (6.6%), and clinically only in 8/122 (6.6%). Deaths, one of cardiac origin (0.9%), occurred in 2/114 (1.8%), and myocardial infarctions in 1/114 (0.9%). The culprit stenoses were dilated from 78.4+/-9.7% to 23.3+/-11.0% recurring to 43.1+/-24.3% at scheduled follow-up. The late loss of 0.6+/-0.8 mm and late loss index of 0.3+/-0.5 translated into a binary restenosis rate of 24/98 (24.5%) requiring reintervention in 19/98 (19.4%). CONCLUSIONS: In summary, the LP-Stent is associated with reduced intimal proliferation as reflected by the low late loss index when being compared with either non-coated or passively coated devices and higher in comparison to active coated stents. The considerable dissection rate seems to be related to higher deployment pressures and warrants design modification at the stent's distal edges.


Subject(s)
Coronary Artery Disease/therapy , Stents , Aged , Angioplasty, Balloon, Coronary , Blood Vessel Prosthesis Implantation , Coronary Angiography , Coronary Artery Disease/diagnostic imaging , Coronary Artery Disease/mortality , Coronary Restenosis/diagnostic imaging , Coronary Restenosis/etiology , Coronary Restenosis/mortality , Equipment Design , Female , Follow-Up Studies , Humans , Male , Middle Aged , Pressure , Prospective Studies , Treatment Outcome
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