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Goal Directed TherapyNCT04814966

Feasibility of Extended Non-invasive Haemodynamic Monitoring in the PACU

An observational study of Goal Directed Therapy and Postoperative Complications, run by University Hospital Schleswig-Holstein at 1 site in Germany.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Post-operative monitoring of all patients after anaesthesia in the post anaesthesia care unit (PACU) is standard of care today. It helps to reduce morbidity and even mortality in high-risk patients. Read more about this study

Who is it for?
Ages 18 years and older
How many people
80 participants
Where
1 siteGermany
Study dates
1 Apr 2019to 1 Mar 2021
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 with ASA classification I-III undergoing abdominal surgery, surgery in urology or vascular surgery and delivered to postanaesthesia care unit

Who may be able to join

  • patients with ASA classification I-III undergoing abdominal surgery, surgery in urology or vascular surgery
  • written consent

Who cannot join

  • Age <18 years
  • ASA classification IV or higher
  • legal care relationship
  • missing or faulty written consent

Trial locations and contacts

1 site in 1 country.

Germany1 site
  • Universitätsklinikum Schleswig-Holstein Campus Kiel - Klinik für Anästhesiologie und Operative Intensivmedizin

    Kiel, Deutschland (deu), 24105

Other trials in Germany

About this study

Official title: Prospective Observational Study on the Use of Extended Haemodynamic Monitoring in the Post-Anesthesia Care Unit (PACU) Using Non-invasive Methods: Feasibility and Influence on Volume Therapy and Catecholamine Treatment.

Post-operative monitoring of all patients after anaesthesia in the post anaesthesia care unit (PACU) is standard of care today. It helps to reduce morbidity and even mortality in high-risk patients.

In addition to clinical monitoring by qualified personnel, this monitoring also includes, commonly non-invasive, intermittent, haemodynamic monitoring. This monitoring is also used to evaluate the transferability of patients from the PACU to the ward.

The aim of our study is to perform extended monitoring of volume status and haemodynamics with non-invasive monitoring methods such as transthoracic echocardiography and the volume clamp method in the recovery room.

Read the detailed description

Postoperative haemodynamic management, with particular emphasis on adequate volume status, is essential for patient outcome, as is optimised intraoperative management. Postoperative monitoring is usually performed in the PACU by non-invasive, continuous and intermittent monitoring. ECG and oxygen saturation are monitored continuously, blood pressure and laboratory analyses intermittently. The assessment of adequate oxygen supply (cardiac output - haemoglobin concentration - oxygen saturation) in the PACU is traditionally approximated only by surrogate parameters such as blood pressure and heart rate, in the sense of an empirical approach. The aim should be to transfer the available data on the benefit of early, goal-oriented haemodynamic optimisation by means of extended haemodynamic monitoring to the sensitive area of the PACU. An important prerequisite for the implementation of such haemodynamic optimisation protocols is the use of non-invasive monitoring methods, which ideally provide continuous flow and pressure-based parameters in combination with the use of intermittent transthoracic echocardiography. The necessity to continue extended haemodynamic monitoring in selected patients in the PACU on the basis of non-invasive procedures is under discussion and is not part of a defined standard today (Gruenewald et al. Anaesthesia 2015). A number of non-invasive haemodynamic monitoring methods have become available over the last few years, with a large number of scientific evaluation studies investigating the methods in various clinical settings in comparison to invasive systems. Of interest for routine clinical use are the so-called volume clamp procedures, which allow non-invasive, continuous recording of haemodynamic parameters such as stroke volume, cardiac output, blood pressure and plus pressure variation. Thus, in combination with oxygen saturation and intermittent haemoglobin determinations, they enable a punctual determination of oxygen supply (Meidert et al. Front Med (Lausanne) 2017 and Renner et al. Br J Anaesth 2017).

It is of interest whether the volume clamp method in particular provides the aforementioned parameters such as blood pressure, stroke volume, cardiac output and the pulse pressure variation continuously and without interference in the awake patient in the PACU. Another aspect is the assessment of the volume status and cardiac performance that patients show on admission to the PACU. Here, special attention is paid to the volume status after the patients have been haemodynamically optimised intraoperatively with an invasive procedure. Furthermore, we will compare how the cardiac output determined by echocardiography on admission differs from the cardiac output of the volume clamp method on admission. The differences between invasive blood pressure measurement and non-invasive pressure measurement will also be assessed.

In addition, the investigators analyse the frequencies of decreased blood pressures in comparison to a patient collective that was monitored according to standard-of-care in the PACU. Also, the comparative observation of the number of interventions performed, such as volume administration and/or catecholamine administration, between the groups.

Keywords
Goal directed haemodynamic optimization, Ultrasound Therapy, Postoperative complications
Medical subject headings
Postoperative Complications

What is being measured

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

  1. length of stay in the recovery room

    evaluated using the Whites-Fast-Trac Scoring System

    Measured: up to 24 weeks

  2. acute renal failure

    number of short-term postoperative complications

    Measured: up to 24 weeks

  3. pericardial effusion

    number of short-term postoperative complications

    Measured: up to 24 weeks

  4. pulmonary oedema

    number of short-term postoperative complications

    Measured: up to 24 weeks

Secondary outcomes (4)
  1. cardiac output by echocardiography

    cardiac output determined by echocardiography on admission

    Measured: up to 24 weeks

  2. cardiac output volume clamp method

    cardiac output determined by volume clamp method on admission

    Measured: up to 24 weeks

  3. frequencies of decreased blood pressure values

    frequencies of decreased blood pressure values between the groups

    Measured: up to 24 weeks

  4. number of interventions

    comparative observation of the number of interventions performed between the groups

    Measured: up to 24 weeks

Timeline

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

  1. First posted24 Mar 2021
  2. Study start1 Apr 2019
  3. Primary completion31 Jan 2021
  4. Study completion1 Mar 2021

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
Other
Time perspective
Other
Enrolment
80 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04814966
Sponsor's protocol ID
IN-PACU-02
Status last verified
Mar 2021
First submitted
16 Jul 2019
Last updated
24 Mar 2021
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Aldrete JA, Kroulik D. A postanesthetic recovery score. Anesth Analg. 1970 Nov-Dec;49(6):924-34. No abstract available.

    PubMed 5534693
  • Truong L, Moran JL, Blum P. Post anaesthesia care unit discharge: a clinical scoring system versus traditional time-based criteria. Anaesth Intensive Care. 2004 Feb;32(1):33-42. doi: 10.1177/0310057X0403200106.

    PubMed 15058119
  • McLaren JM, Reynolds JA, Cox MM, Lyall JS, McCarthy M, McNoble EM, Petersen VR. Decreasing the length of stay in phase I postanesthesia care unit: an evidence-based approach. J Perianesth Nurs. 2015 Apr;30(2):116-23. doi: 10.1016/j.jopan.2014.05.010.

    PubMed 25813297
  • Jain A, Muralidhar V, Aneja S, Sharma AK. A prospective observational study comparing criteria-based discharge method with traditional time-based discharge method for discharging patients from post-anaesthesia care unit undergoing ambulatory or outpatient minor surgeries under general anaesthesia. Indian J Anaesth. 2018 Jan;62(1):61-65. doi: 10.4103/ija.IJA_549_17.

    PubMed 29416152
  • Eichenberger AS, Haller G, Cheseaux N, Lechappe V, Garnerin P, Walder B. A clinical pathway in a post-anaesthesia care unit to reduce length of stay, mortality and unplanned intensive care unit admission. Eur J Anaesthesiol. 2011 Dec;28(12):859-66. doi: 10.1097/EJA.0b013e328347dff5.

    PubMed 21885983
  • Waddle JP, Evers AS, Piccirillo JF. Postanesthesia care unit length of stay: quantifying and assessing dependent factors. Anesth Analg. 1998 Sep;87(3):628-33. doi: 10.1097/00000539-199809000-00026.

    PubMed 9728843
  • Samad K, Khan M, Hameedullah, Khan FA, Hamid M, Khan FH. Unplanned prolonged postanaesthesia care unit length of stay and factors affecting it. J Pak Med Assoc. 2006 Mar;56(3):108-12.

    PubMed 16696508
  • Ameloot K, Van De Vijver K, Van Regenmortel N, De Laet I, Schoonheydt K, Dits H, Broch O, Bein B, Malbrain ML. Validation study of Nexfin(R) continuous non-invasive blood pressure monitoring in critically ill adult patients. Minerva Anestesiol. 2014 Dec;80(12):1294-301. Epub 2014 Apr 4.

    PubMed 24705004
  • Batz G, Dinkel M. [Hemodynamic monitoring - imaging procedures / cardiac ultrasound]. Anasthesiol Intensivmed Notfallmed Schmerzther. 2016 Oct;51(10):626-634. doi: 10.1055/s-0041-110009. Epub 2016 Oct 20. German.

    PubMed 27764871
  • Broch O, Renner J, Gruenewald M, Meybohm P, Schottler J, Caliebe A, Steinfath M, Malbrain M, Bein B. A comparison of the Nexfin(R) and transcardiopulmonary thermodilution to estimate cardiac output during coronary artery surgery. Anaesthesia. 2012 Apr;67(4):377-83. doi: 10.1111/j.1365-2044.2011.07018.x. Epub 2012 Feb 11.

    PubMed 22324797
  • Pouwels S, Lascaris B, Nienhuijs SW, Arthur Bouwman R, Buise MP. Validation of the Nexfin(R) non-invasive continuous blood pressure monitoring validated against Riva-Rocci/Korotkoff in a bariatric patient population. J Clin Anesth. 2017 Jun;39:89-95. doi: 10.1016/j.jclinane.2017.03.029. Epub 2017 Mar 31.

    PubMed 28494917
  • White PF, Song D. New criteria for fast-tracking after outpatient anesthesia: a comparison with the modified Aldrete's scoring system. Anesth Analg. 1999 May;88(5):1069-72. doi: 10.1097/00000539-199905000-00018. No abstract available.

    PubMed 10320170
  • Broch O, Carstens A, Gruenewald M, Nischelsky E, Vellmer L, Bein B, Aselmann H, Steinfath M, Renner J. Non-invasive hemodynamic optimization in major abdominal surgery: a feasibility study. Minerva Anestesiol. 2016 Nov;82(11):1158-1169. Epub 2016 Jun 28.

    PubMed 27352070
  • Salzwedel C, Puig J, Carstens A, Bein B, Molnar Z, Kiss K, Hussain A, Belda J, Kirov MY, Sakka SG, Reuter DA. Perioperative goal-directed hemodynamic therapy based on radial arterial pulse pressure variation and continuous cardiac index trending reduces postoperative complications after major abdominal surgery: a multi-center, prospective, randomized study. Crit Care. 2013 Sep 8;17(5):R191. doi: 10.1186/cc12885.

    PubMed 24010849
  • Gruenewald M, Renner J. Do we need to monitor cardiac output in spontaneously breathing patients? Anaesthesia. 2015 Feb;70(2):122-5. doi: 10.1111/anae.12951. No abstract available.

    PubMed 25583187

Questions about this trial

What is this clinical trial studying?

An observational study of Goal Directed Therapy and Postoperative Complications, run by University Hospital Schleswig-Holstein 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 2 inclusion and 4 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: finished, as of the sponsor's last update on 24 Mar 2021. 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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

length of stay in the recovery room (time frame: up to 24 weeks). The study lists 4 primary outcomes in all. 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 NCT04814966, which also lists 17 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 24 Mar 2021.

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