- ICH GCP
- Register voor klinische proeven in de VS.
- Klinische proef NCT01982513
Influence of the Method of Alleviation of Aorto-Caval Compression on the Trans-Hepatic Ultrasound-Assessed Inferior Vena Cava Diameter In Pregnant Patients
Influence of the Method of Alleviation of Aorto-Caval Compression on the Trans-Hepatic Ultrasound-Assessed Inferior Vena Cava Diameter In Pregnant Patients: An Observational Study of the Left Lateral Tilt and of the Left Uterine Displacement
Cardiac arrest during pregnancy is rare but may result in poor maternal and fetal outcome. Because of its rare occurrence and ethical issues this topic is not very well studied and many questions pertaining to maternal resuscitation remain unanswered. One of the challenging aspects of cardiopulmonary resuscitation in a term pregnant patient is the ideal positioning during chest compressions. International societies have made recommendations regarding management of pregnant patients during cardiac arrest. They advocate the use of left lateral position with 30 degrees tilt or manual uterine displacement. However these recommendations are not based on high level of evidence. Ultrasound has been used to visualize the change in diameter of great vessels to determine the volume status or adequacy of blood circulation of these patients. This approach can be used to study the adequacy of blood circulation of pregnant patients in different positions. The objective of this study is to compare the change in Inferior vena cava diameter obtained with pregnant women in either the left lateral tilt or in the supine position with a manual uterine displacement, compared to the left lateral position and the supine position.
Our hypothesis is that the inferior vena cava diameter obtained in the supine position with manual left uterine displacement would be larger as compared to that obtained with women positioned with a 30-degree tilt.
Studie Overzicht
Toestand
Conditie
Interventie / Behandeling
Gedetailleerde beschrijving
Using the non-invasive technology of ultrasound we will be able to determine the degree of aorto-caval compression in pregnant women placed in different positions. The results of this study will help us to determine the optimal patient positioning for each individual. This in future may help us in improving outcomes not only during labor and anesthesia, but also during maternal resuscitation in critical cases.
The results of this study will help us to determine the best technique to minimize aorto-caval compression in the term pregnant patient. The results of this study will be useful to establish firm maternal resuscitation guidelines. We will be able to determine the optimal maternal position during cardiopulmonary resuscitation and this may improve both maternal and fetal resuscitation outcomes.
Studietype
Inschrijving (Werkelijk)
Contacten en locaties
Studie Locaties
-
-
Ontario
-
Toronto, Ontario, Canada, M5G1X5
- Mount Sinai Hospital
-
-
Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Bemonsteringsmethode
Studie Bevolking
Beschrijving
Inclusion Criteria:
- ASA I or II
- Term pregnancy (36-40 weeks)
- Singleton pregnancy
Exclusion Criteria:
- Patients with known cardiac disease, severe preeclampsia on medication
- Multiple gestation
- Breech presentation
- Patients unable to comply with the 4 positions (left lateral, left tilt, supine and supine with manual displacement)
- Patients unable or unwilling to consent
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
Cohorten en interventies
Groep / Cohort |
Interventie / Behandeling |
---|---|
Term pregnant patients
ASA I-II term (36-40 weeks) non-laboring women with singleton pregnancies who are admitted at MSH for induction of labor, elective cesarean section or for observation for any medical reason. These patients will be examined in 4 positions with the ultrasound. |
The IVC will be visualized and images obtained using the intercostal window in both longitudinal and transverse planes.
|
Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
---|---|---|
IVC maximum diameter
Tijdsspanne: 20 minutes
|
The IVC maximum diameter in each position (measured during expiration).
|
20 minutes
|
Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
---|---|---|
Fetal Heart Rate
Tijdsspanne: 20 minutes
|
The fetal heart rate will be monitored during the last minute of observation in each position.
|
20 minutes
|
Maternal vitals
Tijdsspanne: 20 minutes
|
Maternal blood pressure and heart rate will be monitored during the last minute of observation in each position.
|
20 minutes
|
IVC minimum diameter
Tijdsspanne: 20 minutes
|
The IVC minimum diameter in each position (measured during inspiration).
|
20 minutes
|
IVC Index
Tijdsspanne: 20 minutes
|
IVC index (IVI) = IVC(max)-IVC (min)/IVC(max)
|
20 minutes
|
Medewerkers en onderzoekers
Studie record data
Bestudeer belangrijke data
Studie start
Primaire voltooiing (Werkelijk)
Studie voltooiing (Werkelijk)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Schatting)
Updates van studierecords
Laatste update geplaatst (Schatting)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
- 13-09
Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .
Klinische onderzoeken op Ultrasound
-
ReCor Medical, Inc.Nog niet aan het wervenHart-en vaatziekten | Vaatziekten | Hypertensie
-
Sunnybrook Health Sciences CentreOnbekendPatiënten met moeilijke vasculaire toegang.
-
Carilion ClinicVirginia Polytechnic Institute and State UniversityWervingChronische pijn | Fibromyalgie | Complexe regionale pijnsyndromenVerenigde Staten
-
ReCor Medical, Inc.WervingHypertensieDuitsland, Nederland, België, Frankrijk, Monaco, Zwitserland, Verenigd Koninkrijk
-
Seno Medical Instruments Inc.Voltooid
-
The Affiliated Nanjing Drum Tower Hospital of Nanjing...Werving
-
FUSMobile Inc.Focused Ultrasound FoundationVoltooidFacetgerelateerde lage rugpijnCanada
-
IRCCS Fondazione Stella MarisUniversity of Pisa; Ministry of Health, Italy; Fondazione C.N.R./Regione Toscana...WervingCerebrale parese | Ontwikkelingsstoornis | Kinderneurologische aandoeningItalië
-
Scientific Institute San RaffaeleVoltooidLow Cardiac Output-syndroom | Ziekte van de mitralisklepItalië
-
Intermountain Health Care, Inc.Deseret FoundationVoltooidDiepveneuze tromboseVerenigde Staten