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Incidence of Venous Thromboembolism Following Surgery in Patients With Colorectal Cancer

29 mars 2012 uppdaterad av: Keun-Wook Lee, Seoul National University Bundang Hospital

Incidence of Venous Thromboembolism Following Surgery in Korean Patients With Colorectal Cancer; a Prospective Study

Venous thromboembolism (VTE) has harmful effects on morbidity and mortality of cancer patients. In Western VTE guidelines, all solid cancer patients receiving abdominal major surgery are strongly recommended to receive pharmacologic prophylactic anticoagulation such as low molecular weight heparin (LMWH) in the perioperative periods. These recommendations are based on the high incidence of postoperative VTE development in Western cancer patients. However, there have been many cumulative data about the effect of different ethnicity on the VTE development and more and more investigators and clinicians admit that Asian ethnicity has lower incidence of VTE than Western ethnicity. Therefore, it may not be advisable to apply Western guidelines as it is to the clinical situation of Asian cancer patients.

Although colorectal cancer (CRC) is one of the common cancers and the incidence is rapidly increasing in Asia, there have been few prospective data on the incidence of VTE development during the postoperative period in Asian CRC patients. To our knowledge, there have been a few small-sized prospective studies in Asia and thus clear conclusions could have not been drawn based on those studies. Most Korean colorectal surgeons think that the incidence of postoperative VTE development is very rare based on their own clinical experiences. They also have much concern about the complications such as bleeding that might be caused by routine use of pharmacologic thromboprophylaxis during the perioperative periods. Therefore, in most clinical situation, many Korean colorectal surgeons do not perform perioperative pharmacologic thromboprophylaxis using LMHW. Considering these clinical situations in Asia including Korea, the uncritical acceptance of Western guidelines may be inappropriate. The necessity of pharmacologic thrombo-prophylaxis can be answered only from our own prospective study on the incidence of postoperative VTE development after CRC surgery. Moreover, current surgical trend in cancer patients is minimally invasive approach such as laparoscopic surgery. However, the necessity of pharmacologic thromboprophylaxis in patients receiving laparoscopic cancer surgery has not been evaluated even in Western countries. Western guidelines also cannot exactly answer whether pharmacologic thromboprophylaxis is really necessary in cancer patients receiving laparoscopic cancer surgery. On above backgrounds, this study was designed.

Studieöversikt

Studietyp

Observationell

Inskrivning (Förväntat)

600

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studieorter

    • Gyeonggi-do
      • Seongnam, Gyeonggi-do, Korea, Republiken av, 463-707
        • Rekrytering
        • Seoul National University Bundang Hospital
        • Kontakt:
        • Underutredare:
          • Jee Hyun Kim, M.D. & Ph.D.
        • Underutredare:
          • Sung-Bum Kang, M.D. & Ph.D.
        • Underutredare:
          • Duck-Woo Kim, M.D. & Ph.D.
        • Underutredare:
          • Jin Won Kim, M.D.
        • Underutredare:
          • Sang Il Choi, M.D. & Ph.D.
        • Underutredare:
          • Eun Ju Chun, M.D. & Ph.D.
        • Underutredare:
          • Soo Mee Bang, M.D. & Ph.D.
        • Underutredare:
          • Jeong-Ok Lee, M.D.

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

20 år och äldre (Vuxen, Äldre vuxen)

Tar emot friska volontärer

Nej

Kön som är behöriga för studier

Allt

Testmetod

Icke-sannolikhetsprov

Studera befolkning

Patients with CRC receiving curative or palliative surgery

Beskrivning

Inclusion Criteria:

  • Histologically confirmed adenocarcinoma of colon or rectum
  • Age ≥ 20 years
  • Patients receiving curative or palliative abdominal surgery (lasting ≥ 30 minutes) (both open and laparoscopic surgery will be included)

Exclusion Criteria:

  • No histological confirmation
  • Patients who already have VTE (or pulmonary embolism) at the screening periods of this study
  • Past medical history of VTE or pulmonary embolism
  • Patients with the history of other cancer (Patients who were disease-free for > 5 years from previous other cancer is allowed to be included in this study)
  • Patients with thrombophilia or other comorbidities requiring anticoagulation (i.e. atrial fibrillation or cerebral infarct requiring anticoagulation

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Observationsmodeller: Kohort
  • Tidsperspektiv: Blivande

Kohorter och interventioner

Grupp / Kohort
Intervention / Behandling
Group A

Patients who gave a permission to this study and underwent doppler US (Doppler US cohort

- Expected subject no.: 400 patients

Patients will receive surgery for the treatment of CRC as routine clinical practice. These patients will be prospectively observed for the development of VTE(Group A; Doppler US cohort vs. Group B; Simple observation cohort)

- Doppler US is not an intervention. The Doppler US is a non-invasive test (ultrasonography) for the detection of VTE

Group B

Patient who gave a permission to this study, but who did not receive doppler US (Although this group of patients did not undergo doppler US, these patients will be included as group B [simple observation cohort without doppler US examination])

- Expected subject no.: 200 patients

Patients will receive surgery for the treatment of CRC as routine clinical practice. These patients will be prospectively observed for the development of VTE(Group A; Doppler US cohort vs. Group B; Simple observation cohort)

- Doppler US is not an intervention. The Doppler US is a non-invasive test (ultrasonography) for the detection of VTE

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
The incidence of symptomatic or asymptomatic VTE
Tidsram: 5~14 days after CRC surgery (by doppler venous ultrasound [US]) or the follow-up period of postoperative 1 month
To evaluate the incidence of symptomatic or asymptomatic VTE detected by Doppler US during postoperative periods in patients with CRC receiving surgery
5~14 days after CRC surgery (by doppler venous ultrasound [US]) or the follow-up period of postoperative 1 month

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Risk factors for the development of VTE
Tidsram: 5~14 days after CRC surgery (by doppler US) or the follow-up period of postoperative 1 month
To identify risk factors for the development of VTE in this population
5~14 days after CRC surgery (by doppler US) or the follow-up period of postoperative 1 month

Samarbetspartners och utredare

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Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart

1 juni 2011

Primärt slutförande (Förväntat)

1 juni 2013

Avslutad studie (Förväntat)

1 december 2013

Studieregistreringsdatum

Först inskickad

28 mars 2012

Först inskickad som uppfyllde QC-kriterierna

29 mars 2012

Första postat (Uppskatta)

30 mars 2012

Uppdateringar av studier

Senaste uppdatering publicerad (Uppskatta)

30 mars 2012

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

29 mars 2012

Senast verifierad

1 mars 2012

Mer information

Denna information hämtades direkt från webbplatsen clinicaltrials.gov utan några ändringar. Om du har några önskemål om att ändra, ta bort eller uppdatera dina studieuppgifter, vänligen kontakta register@clinicaltrials.gov. Så snart en ändring har implementerats på clinicaltrials.gov, kommer denna att uppdateras automatiskt även på vår webbplats .

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