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Vascular SurgeryPOPART-CVONCT04053894

Association of PeriOPerative Aspirin-ResisTance and CardioVascular Outcome

An observational study of Vascular Surgery, run by University Hospital Heidelberg at 1 site in Germany.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

The aim of our study is to investigate the association between perioperative aspirin resistance and Myocardial Injury after Non-cardiac Surgery (MINS) in patients undergoing vascular surgery. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Vascular Surgery
How many people
220 participants
Where
1 siteGermany
Study dates
Aug 2019to May 2020
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Patients on aspirin treatment, admitted to University Hospital Heidelberg and scheduled for vascular surgery.

Who may be able to join

  • 18 years or older
  • Preoperative aspirin treatment at least 14 days prior to surgery
  • Elective vascular surgery
  • In-patient treatment
  • Informed consent

Who cannot join

  • 17 years of age or younger
  • Known pregnancy or breastfeeding
  • Missing informed consent
  • Ambulatory or day-case surgery
  • Emergency surgery
  • Current clopidogrel or non-steroidal anti-inflammatory drug treatment
Show all 11Show fewer
  • Preoperative aspirin resistance
  • Current thrombocytopenia (<100000 platelet/µl)
  • Liver or renal failure (GOT/GPT and/or creatinine increased >2-fold)
  • Entity which is part of the composite endpoint diagnosed within past 28 days
  • Angiography without surgical intervention

Trial locations and contacts

1 site in 1 country.

Jan Larmann, MD PhD contact

06221/5639447

jan.larmann@med.uni-heidelberg.de

Germany1 site

  • Department of Anaesthesiology, University Hospital Heidelberg

    Heidelberg, Baden-Wurttemberg, 69120

Other trials in Germany

About this study

The aim of our study is to investigate the association between perioperative aspirin resistance and Myocardial Injury after Non-cardiac Surgery (MINS) in patients undergoing vascular surgery.

Read the detailed description

Because of new surgical techniques, advanced monitoring modalities and improvements in perioperative care, perioperative mortality and morbidity have been significantly reduced in the last decades; however, patients still suffer from high perioperative mortality and morbidity, especially those with pre-existing cardiovascular diseases. Not only perioperative myocardial infarction but also myocardial injury after non-cardiac surgery, which presents without clinical symptoms, is associated with an adverse outcome. Possibilities to preoperatively identify patients at cardiovascular risk are limited and prophylactic interventions are not yet established or controversial.

Aspirin is used for primary and secondary prevention in cardiovascular diseases. New-onset increased platelet function on aspirin treatment (aspirin resistance) has been demonstrated in cardiac and vascular surgery. Yet, it has not been investigated whether a new perioperative aspirin resistance is associated with higher risk of myocardial injury after non-cardiac surgery (MINS) and cardiovascular events.

The aim of this study is to evaluate a potential association between new-onset aspirin resistance and MINS in patients undergoing vascular surgery. If there is an association of perioperative aspirin resistance and MINS during vascular surgery, the detection of perioperative aspirin resistance could be used as perioperative risk stratification tool in order to improve clinical risk stratification and reduce perioperative morbidity and mortality.

Therefore, 220 patients treated with aspirin and scheduled for vascular surgery will be recruited. Blood will be drawn at predefined time points before surgery and up to three days postoperatively. Aspirin resistance will be measured by Multiplate Analyzer prior to surgery, one hour after skin-incision, four hours after surgery and on post-OP days one and two. Adverse cardiovascular events will be recorded until 30 days post-OP. ECGs will be recorded preoperatively and on post-OP day 3. High-sensitive cardiac Troponin T will be measured prior to surgery and on post-OP days one to three. Patient charts will be screened and a telephone interview will be performed to detect cardiovascular events after discharge until post-OP day 30.

Keywords
vascular surgery, aspirin resistance, MINS

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Myocardial Injury after Non-cardiac Surgery

    Number of participants with MINS defined as raise in postoperative hs-cTNT (high sensitivity cardiac troponin T) judged due to myocardial ischemia detected at postoperative visits, documented in patient chart or detected during telephone interview after 30 postoperative days.

    Measured: 30 days postoperative

Secondary outcomes (11)

  1. Composite of Cardiovascular Events

    Number of participants with Cardiovascular Events defined as occurrence of Cardiac Death and/or Myocardial Ischemia and/or Myocardial Infarction and/or Embolic Stroke and/or Thrombotic Stroke recorded until postoperative day 30. Definitions according to European Perioperative Clinical Outcome-(EPCO) detected at postoperative visits, documented in patient chart or detected during telephone interview after 30 postoperative days

    Measured: 30 days postoperative

  2. Peripheral vascular occlusion

    Diagnosed by a radiologist based on the results of duplex ultrasonography, angiography or CT-angiography.

    Measured: 30 days postoperative

  3. Mesenteric ischemia

    Diagnosed by a radiologist based on the results of angiography or CT-angiography.

    Measured: 30 days postoperative

  4. New-onset atrial fibrillation

    Number of participants with new electrocardiographic detection of atrial fibrillation in postoperative ECG and/or documented in patient chart

    Measured: 30 days postoperative

  5. Congestive heart failure

    Number of participants with congestive heart failure according to European Perioperative Clinical Outcome (EPCO) definitions

    Measured: 30 days postoperative

  6. Cardiac death

    Number of participants with cardiac death defined as death due to new myocardial infarction or ischemia, or atrial or ventricular arrhythmias, or cardiogenic pulmonary edema, or pulmonary embolism detected at postoperative visits, documented in patient chart or detected during telephone interview after 30 postoperative days

    Measured: 30 days postoperative

  7. Myocardial Ischemia

    Number of participants with myocardial ischemia defined as new electrocardiographic detection of myocardial ischemia in ECG and/or documented in patient charts which will be screened up to 30 postoperative days and/or detected during telephone interview after 30 postoperative days

    Measured: 30 days postoperative

  8. Myocardial Infarction

    Number of participants with myocardial infarction defined as an increase in serum cardiac biomarker values in combination with symptoms of ischemia or new/presumed new significant ST segment or T wave ECG changes or new left bundle branch block or development of pathological Q waves on ECG. Definition according to European Perioperative Clinical Outcome-(EPCO) detected at postoperative visits, postoperative blood analyses, documented in patient chart or detected during telephone interview after 30 postoperative days

    Measured: 30 days postoperative

  9. Stroke

    Number of participants with embolic or thrombotic stroke defined as cerebral event with persistent residual motor, sensory or cognitive dysfunction detected at postoperative visits, documented in patient chart or detected during telephone interview after 30 postoperative days.

    Measured: 30 days postoperative

  10. Length of hospital stay

    Documented in patient charts.

    Measured: 30 days postoperative

  11. Length of intensive care unit stay

    Documented in patient charts.

    Measured: 30 days postoperative

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted13 Aug 2019
  2. Study startAug 2019 (estimated)
  3. Primary completionApr 2020 (estimated)
  4. Study completionMay 2020 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
220 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04053894
Sponsor's protocol ID
S-468/2019
Acronym
POPART-CVO
Status last verified
Aug 2019
First submitted
9 Aug 2019
Last updated
20 Aug 2019
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Weiser TG, Haynes AB, Molina G, Lipsitz SR, Esquivel MM, Uribe-Leitz T, Fu R, Azad T, Chao TE, Berry WR, Gawande AA. Estimate of the global volume of surgery in 2012: an assessment supporting improved health outcomes. Lancet. 2015 Apr 27;385 Suppl 2:S11. doi: 10.1016/S0140-6736(15)60806-6. Epub 2015 Apr 26.

    PubMed 26313057

  • Weiser TG, Haynes AB, Molina G, Lipsitz SR, Esquivel MM, Uribe-Leitz T, Fu R, Azad T, Chao TE, Berry WR, Gawande AA. Size and distribution of the global volume of surgery in 2012. Bull World Health Organ. 2016 Mar 1;94(3):201-209F. doi: 10.2471/BLT.15.159293.

    PubMed 26966331

  • Berwanger O, Le Manach Y, Suzumura EA, Biccard B, Srinathan SK, Szczeklik W, Santo JA, Santucci E, Cavalcanti AB, Archbold RA, Devereaux PJ; VISION Investigators. Association between pre-operative statin use and major cardiovascular complications among patients undergoing non-cardiac surgery: the VISION study. Eur Heart J. 2016 Jan 7;37(2):177-85. doi: 10.1093/eurheartj/ehv456. Epub 2015 Sep 1.

    PubMed 26330424

  • Botto F, Alonso-Coello P, Chan MT, Villar JC, Xavier D, Srinathan S, Guyatt G, Cruz P, Graham M, Wang CY, Berwanger O, Pearse RM, Biccard BM, Abraham V, Malaga G, Hillis GS, Rodseth RN, Cook D, Polanczyk CA, Szczeklik W, Sessler DI, Sheth T, Ackland GL, Leuwer M, Garg AX, Lemanach Y, Pettit S, Heels-Ansdell D, Luratibuse G, Walsh M, Sapsford R, Schunemann HJ, Kurz A, Thomas S, Mrkobrada M, Thabane L, Gerstein H, Paniagua P, Nagele P, Raina P, Yusuf S, Devereaux PJ, Devereaux PJ, Sessler DI, Walsh M, Guyatt G, McQueen MJ, Bhandari M, Cook D, Bosch J, Buckley N, Yusuf S, Chow CK, Hillis GS, Halliwell R, Li S, Lee VW, Mooney J, Polanczyk CA, Furtado MV, Berwanger O, Suzumura E, Santucci E, Leite K, Santo JA, Jardim CA, Cavalcanti AB, Guimaraes HP, Jacka MJ, Graham M, McAlister F, McMurtry S, Townsend D, Pannu N, Bagshaw S, Bessissow A, Bhandari M, Duceppe E, Eikelboom J, Ganame J, Hankinson J, Hill S, Jolly S, Lamy A, Ling E, Magloire P, Pare G, Reddy D, Szalay D, Tittley J, Weitz J, Whitlock R, Darvish-Kazim S, Debeer J, Kavsak P, Kearon C, Mizera R, O'Donnell M, McQueen M, Pinthus J, Ribas S, Simunovic M, Tandon V, Vanhelder T, Winemaker M, Gerstein H, McDonald S, O'Bryne P, Patel A, Paul J, Punthakee Z, Raymer K, Salehian O, Spencer F, Walter S, Worster A, Adili A, Clase C, Cook D, Crowther M, Douketis J, Gangji A, Jackson P, Lim W, Lovrics P, Mazzadi S, Orovan W, Rudkowski J, Soth M, Tiboni M, Acedillo R, Garg A, Hildebrand A, Lam N, Macneil D, Mrkobrada M, Roshanov PS, Srinathan SK, Ramsey C, John PS, Thorlacius L, Siddiqui FS, Grocott HP, McKay A, Lee TW, Amadeo R, Funk D, McDonald H, Zacharias J, Villar JC, Cortes OL, Chaparro MS, Vasquez S, Castaneda A, Ferreira S, Coriat P, Monneret D, Goarin JP, Esteve CI, Royer C, Daas G, Chan MT, Choi GY, Gin T, Lit LC, Xavier D, Sigamani A, Faruqui A, Dhanpal R, Almeida S, Cherian J, Furruqh S, Abraham V, Afzal L, George P, Mala S, Schunemann H, Muti P, Vizza E, Wang CY, Ong GS, Mansor M, Tan AS, Shariffuddin II, Vasanthan V, Hashim NH, Undok AW, Ki U, Lai HY, Ahmad WA, Razack AH, Malaga G, Valderrama-Victoria V, Loza-Herrera JD, De Los Angeles Lazo M, Rotta-Rotta A, Szczeklik W, Sokolowska B, Musial J, Gorka J, Iwaszczuk P, Kozka M, Chwala M, Raczek M, Mrowiecki T, Kaczmarek B, Biccard B, Cassimjee H, Gopalan D, Kisten T, Mugabi A, Naidoo P, Naidoo R, Rodseth R, Skinner D, Torborg A, Paniagua P, Urrutia G, Maestre ML, Santalo M, Gonzalez R, Font A, Martinez C, Pelaez X, De Antonio M, Villamor JM, Garcia JA, Ferre MJ, Popova E, Alonso-Coello P, Garutti I, Cruz P, Fernandez C, Palencia M, Diaz S, Del Castillo T, Varela A, de Miguel A, Munoz M, Pineiro P, Cusati G, Del Barrio M, Membrillo MJ, Orozco D, Reyes F, Sapsford RJ, Barth J, Scott J, Hall A, Howell S, Lobley M, Woods J, Howard S, Fletcher J, Dewhirst N, Williams C, Rushton A, Welters I, Leuwer M, Pearse R, Ackland G, Khan A, Niebrzegowska E, Benton S, Wragg A, Archbold A, Smith A, McAlees E, Ramballi C, Macdonald N, Januszewska M, Stephens R, Reyes A, Paredes LG, Sultan P, Cain D, Whittle J, Del Arroyo AG, Sessler DI, Kurz A, Sun Z, Finnegan PS, Egan C, Honar H, Shahinyan A, Panjasawatwong K, Fu AY, Wang S, Reineks E, Nagele P, Blood J, Kalin M, Gibson D, Wildes T; Vascular events In noncardiac Surgery patIents cOhort evaluatioN (VISION) Writing Group, on behalf of The Vascular events In noncardiac Surgery patIents cOhort evaluatioN (VISION) Investigators; Appendix 1. The Vascular events In noncardiac Surgery patIents cOhort evaluatioN (VISION) Study Investigators Writing Group; Appendix 2. The Vascular events In noncardiac Surgery patIents cOhort evaluatioN Operations Committee; Vascular events In noncardiac Surgery patIents cOhort evaluatioN VISION Study Investigators. Myocardial injury after noncardiac surgery: a large, international, prospective cohort study establishing diagnostic criteria, characteristics, predictors, and 30-day outcomes. Anesthesiology. 2014 Mar;120(3):564-78. doi: 10.1097/ALN.0000000000000113.

    PubMed 24534856

  • Gillmann HJ, Meinders A, Grohennig A, Larmann J, Bunte C, Calmer S, Sahlmann B, Rustum S, Aper T, Lichtinghagen R, Koch A, Teebken OE, Theilmeier G. Perioperative levels and changes of high-sensitivity troponin T are associated with cardiovascular events in vascular surgery patients. Crit Care Med. 2014 Jun;42(6):1498-506. doi: 10.1097/CCM.0000000000000249.

    PubMed 24584063

  • Gillmann HJ, Meinders A, Larmann J, Sahlmann B, Schrimpf C, Aper T, Lichtinghagen R, Teebken OE, Theilmeier G. Adrenomedullin Is Associated With Surgical Trauma and Impaired Renal Function in Vascular Surgery Patients. J Intensive Care Med. 2019 Jan;34(1):67-76. doi: 10.1177/0885066616689554. Epub 2017 Jan 23.

    PubMed 28110613

  • International Surgical Outcomes Study group. Global patient outcomes after elective surgery: prospective cohort study in 27 low-, middle- and high-income countries. Br J Anaesth. 2016 Oct 31;117(5):601-609. doi: 10.1093/bja/aew316.

    PubMed 27799174

  • Devereaux PJ, Sessler DI. Cardiac Complications in Patients Undergoing Major Noncardiac Surgery. N Engl J Med. 2015 Dec 3;373(23):2258-69. doi: 10.1056/NEJMra1502824. No abstract available.

    PubMed 26630144

  • Antithrombotic Trialists' (ATT) Collaboration; Baigent C, Blackwell L, Collins R, Emberson J, Godwin J, Peto R, Buring J, Hennekens C, Kearney P, Meade T, Patrono C, Roncaglioni MC, Zanchetti A. Aspirin in the primary and secondary prevention of vascular disease: collaborative meta-analysis of individual participant data from randomised trials. Lancet. 2009 May 30;373(9678):1849-60. doi: 10.1016/S0140-6736(09)60503-1.

    PubMed 19482214

  • Bibbins-Domingo K; U.S. Preventive Services Task Force. Aspirin Use for the Primary Prevention of Cardiovascular Disease and Colorectal Cancer: U.S. Preventive Services Task Force Recommendation Statement. Ann Intern Med. 2016 Jun 21;164(12):836-45. doi: 10.7326/M16-0577. Epub 2016 Apr 12.

    PubMed 27064677

  • Williams CD, Chan AT, Elman MR, Kristensen AH, Miser WF, Pignone MP, Stafford RS, McGregor JC. Aspirin use among adults in the U.S.: results of a national survey. Am J Prev Med. 2015 May;48(5):501-8. doi: 10.1016/j.amepre.2014.11.005.

    PubMed 25891049

  • Wang Z, Gao F, Men J, Ren J, Modi P, Wei M. Aspirin resistance in off-pump coronary artery bypass grafting. Eur J Cardiothorac Surg. 2012 Jan;41(1):108-12. doi: 10.1016/j.ejcts.2011.04.021.

    PubMed 21636287

  • Kempfert J, Anger K, Rastan A, Krabbes S, Lehmann S, Garbade J, Sauer M, Walther T, Dhein S, Mohr FW. Postoperative development of aspirin resistance following coronary artery bypass. Eur J Clin Invest. 2009 Sep;39(9):769-74. doi: 10.1111/j.1365-2362.2009.02175.x.

    PubMed 19674078

  • Webster SE, Payne DA, Jones CI, Hayes PD, Bell PR, Goodall AH, Naylor AR. Anti-platelet effect of aspirin is substantially reduced after administration of heparin during carotid endarterectomy. J Vasc Surg. 2004 Sep;40(3):463-8. doi: 10.1016/j.jvs.2004.06.022.

    PubMed 15337874

Questions about this trial

What is this clinical trial studying?

An observational study of Vascular Surgery, run by University Hospital Heidelberg at 1 site in Germany.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 11 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 20 Aug 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Germany. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Jan Larmann, MD PhD (06221/5639447, jan.larmann@med.uni-heidelberg.de), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Myocardial Injury after Non-cardiac Surgery (time frame: 30 days postoperative). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04053894, which also lists 14 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 Aug 2019.

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