NCT03009643

Brief Summary

Hypoxemia is a common complication after aortic surgery. As this complication has an adverse effect on the postoperative course of the patient, early treatment is important; however, the mechanism of hypoxemia after surgery for acute aortic dissection remains unclear. Recently, the investigators found that inhaled Nitric Oxide can improve the oxygenation in some of these patients. The investigators are trying to evaluate the effectiveness and safety of inhaled Nitric Oxide in patients with refractory hypoxemia after aortic surgery.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
60

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Oct 2016

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 1, 2016

Completed
3 months until next milestone

First Submitted

Initial submission to the registry

December 26, 2016

Completed
9 days until next milestone

First Posted

Study publicly available on registry

January 4, 2017

Completed
2.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2019

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2019

Completed
Last Updated

February 5, 2018

Status Verified

February 1, 2018

Enrollment Period

3 years

First QC Date

December 26, 2016

Last Update Submit

February 1, 2018

Conditions

Keywords

Nitric Oxidehypoxemiaaortic surgery

Outcome Measures

Primary Outcomes (1)

  • Mechanical ventilation time (days)

    During whole ICU stay. From date of randomization until the date of death or discharge from ICU, up to 6 months.

Secondary Outcomes (4)

  • ICU mortality

    From date of randomization until the date of death or discharge from ICU, up to 6 months.

  • length of hospital stay (days)

    From date of randomization until the date of death or discharge from hospital, up to 6 months.

  • length of ICU stay (days)

    From date of randomization until the date of death or discharge from ICU, up to 6 months.

  • hospital mortality

    From date of randomization until the date of death or discharge from hospital, up to 6 months.

Study Arms (2)

iNO Group

EXPERIMENTAL

Patients are treated with iNO at a concentration of 5-10 ppm for 3-5 days according to the clinical conditions

Drug: Inhaled Nitric OxideDevice: lung protective mechanical ventilationDevice: Hemodynamic monitoring

Control

OTHER

Patients are treated without iNO.

Device: lung protective mechanical ventilationDevice: Hemodynamic monitoring

Interventions

Patients are treated with iNO for 3-5 days.The concentration of inhaled Nitric Oxide is around 5-10ppm.

iNO Group

Mechanical ventilation in the SIMV mode (ventilators Evita 2 or 4,Dräger, LĂ¼beck, Germany) with VT 6-8ml/kg

ControliNO Group

Flotrac/Vigileo (Edwards Lifesciences) are used to guide the fluid management.

ControliNO Group

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Adult patients with refractory hypoxemia after aortic surgery;
  • Accepting invasive mechanical ventilation;
  • Chest X-ray and lung ultrasound to exclude the respiratory factors (eg. pulmonary edema, obstructive atelectasis, pleural effusion, pneumothorax) and hemodynamic factors (pericardial tamponade, acute pulmonary hypertension, intracardiac shunt);
  • The ventilator parameters: PEEP\>10cmH2O, VT 6-8ml/kg;
  • The PaO2/FiO2 \<= 100mmHg.

You may not qualify if:

  • Age \<18 years old;
  • Pregnant women;
  • Past medical history included COPD or mental illness;
  • The serious infection or sepsis patients;
  • Patients with pulmonary hypertension and right ventricular dysfunction

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Shanghai Zhongshan Hospital

Shanghai, 200032, China

RECRUITING

Related Publications (11)

  • Garcia-Delgado M, Navarrete-Sanchez I, Colmenero M. Preventing and managing perioperative pulmonary complications following cardiac surgery. Curr Opin Anaesthesiol. 2014 Apr;27(2):146-52. doi: 10.1097/ACO.0000000000000059.

    PMID: 24514031BACKGROUND
  • Ball L, Battaglini D, Pelosi P. Postoperative respiratory disorders. Curr Opin Crit Care. 2016 Aug;22(4):379-85. doi: 10.1097/MCC.0000000000000312.

    PMID: 27168252BACKGROUND
  • Griffiths MJ, Evans TW. Inhaled nitric oxide therapy in adults. N Engl J Med. 2005 Dec 22;353(25):2683-95. doi: 10.1056/NEJMra051884. No abstract available.

    PMID: 16371634BACKGROUND
  • Nakajima T, Kawazoe K, Izumoto H, Kataoka T, Niinuma H, Shirahashi N. Risk factors for hypoxemia after surgery for acute type A aortic dissection. Surg Today. 2006;36(8):680-5. doi: 10.1007/s00595-006-3226-5.

  • Wang Y, Xue S, Zhu H. Risk factors for postoperative hypoxemia in patients undergoing Stanford A aortic dissection surgery. J Cardiothorac Surg. 2013 Apr 30;8:118. doi: 10.1186/1749-8090-8-118.

  • Palmer RM, Ferrige AG, Moncada S. Nitric oxide release accounts for the biological activity of endothelium-derived relaxing factor. Nature. 1987 Jun 11-17;327(6122):524-6. doi: 10.1038/327524a0.

  • Frostell C, Fratacci MD, Wain JC, Jones R, Zapol WM. Inhaled nitric oxide. A selective pulmonary vasodilator reversing hypoxic pulmonary vasoconstriction. Circulation. 1991 Jun;83(6):2038-47. doi: 10.1161/01.cir.83.6.2038.

  • Frostell CG, Blomqvist H, Hedenstierna G, Lundberg J, Zapol WM. Inhaled nitric oxide selectively reverses human hypoxic pulmonary vasoconstriction without causing systemic vasodilation. Anesthesiology. 1993 Mar;78(3):427-35. doi: 10.1097/00000542-199303000-00005.

  • Benedetto M, Romano R, Baca G, Sarridou D, Fischer A, Simon A, Marczin N. Inhaled nitric oxide in cardiac surgery: Evidence or tradition? Nitric Oxide. 2015 Sep 15;49:67-79. doi: 10.1016/j.niox.2015.06.002. Epub 2015 Jul 14.

  • Clark RH, Kueser TJ, Walker MW, Southgate WM, Huckaby JL, Perez JA, Roy BJ, Keszler M, Kinsella JP. Low-dose nitric oxide therapy for persistent pulmonary hypertension of the newborn. Clinical Inhaled Nitric Oxide Research Group. N Engl J Med. 2000 Feb 17;342(7):469-74. doi: 10.1056/NEJM200002173420704.

  • Cornfield DN, Maynard RC, deRegnier RA, Guiang SF 3rd, Barbato JE, Milla CE. Randomized, controlled trial of low-dose inhaled nitric oxide in the treatment of term and near-term infants with respiratory failure and pulmonary hypertension. Pediatrics. 1999 Nov;104(5 Pt 1):1089-94. doi: 10.1542/peds.104.5.1089.

Related Links

MeSH Terms

Conditions

Hypoxia

Interventions

Hemodynamic Monitoring

Condition Hierarchy (Ancestors)

Signs and Symptoms, RespiratorySigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Diagnostic Techniques, CardiovascularDiagnostic Techniques and ProceduresDiagnosisMonitoring, Physiologic

Study Officials

  • Zhe Luo, PhD

    Department of Critical Care Medicine

    STUDY DIRECTOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Attending doctor, Department of cardiac surgery intensive care unit, Principal Investigator

Study Record Dates

First Submitted

December 26, 2016

First Posted

January 4, 2017

Study Start

October 1, 2016

Primary Completion

October 1, 2019

Study Completion

December 1, 2019

Last Updated

February 5, 2018

Record last verified: 2018-02

Data Sharing

IPD Sharing
Will not share

Locations