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Hypotension Drug-Induced clinical trials

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NCT ID: NCT05502146 Completed - Clinical trials for Cesarean Section Complications

Comparison of Two Different Norepinephrine Bolus Doses for Management of Spinal Anesthesia-Induced Maternal Hypotension

Start date: August 17, 2022
Phase: Phase 4
Study type: Interventional

In this study the investigators will compare two doses of norepinephrine bolus (6 mcg and 8 mcg) in management of maternal hypotensive episode after spinal block during cesarean delivery.

NCT ID: NCT05368376 Completed - Clinical trials for Hypotension Drug-Induced

Is Labetalol More Effective Than Metoprolol for Controlled Hypotensive Anesthesia During Endoscopic Nasal Surgeries?

Start date: April 1, 2021
Phase: Phase 4
Study type: Interventional

Background: Mucosal bleeding is the most frequent complication with endoscopic nasal surgeries, as it interferes with the optimal visualization of the intranasal anatomy, leading to increased complications, operation duration, and blood loss. There are several pharmacological techniques for the appropriate control of intraoperative bleeding. Objectives: To compare the safety and efficacy of oral labetalol versus oral metoprolol as a premedication for controlled hypotensive anesthesia during endoscopic nasal surgeries. Patients and Methods: This is a randomized, double-blind, phase four, comparative clinical trial; carried out on 60 patients, who were candidates for endoscopic nasal surgeries under general anesthesia at our hospital. Patients were randomly allocated into two equal groups; group L, received oral labetalol, and group M, received oral metoprolol.

NCT ID: NCT05143684 Completed - Clinical trials for Hypotension Drug-Induced

Maternal Lateral Tilt and Cardiac Output in Caesarean Section

Start date: June 1, 2020
Phase:
Study type: Observational

Background: Left uterine displacement (LUD) has been questioned as an effective strategy to prevent aortocaval compression after spinal anesthesia (SA) for cesarean delivery (CD). The investigators tested if LUD has a significant impact on cardiac output (CO) in patients undergoing CD under SA during continuous non-invasive hemodynamic monitoring. Methods: Forty-six patients were included in the final analysis. The investigators considered 4 timepoints of 5 minutes each: T1=baseline with LUD; T2=baseline without LUD; T3=after SA with LUD; T4=after SA without LUD. LUD was then repositioned for CD. Primary outcome was to test if CO decreased from T3 to T4. We also compared CO between T1 and T2 and other hemodynamic variables: mean, systolic and diastolic blood pressure (respectively MAP, SAP and DAP), heart rate (HR), stroke volume (SV), stroke volume variation (SVV), pulse pressure variation (PPV), contractility (dP/dt), dynamic arterial elastance (Eadyn) at the different timepoints. Data on fetal Apgar scores and umbilical arterial and venous pH were collecte

NCT ID: NCT05101291 Completed - Anesthesia Clinical Trials

Fractional Spinal Anesthesia and Systemic Hemodynamics in Frail Elderly Hip Fracture Patients.

Start date: January 15, 2021
Phase: N/A
Study type: Interventional

Aging and frailty make the elderly patients susceptible to hypotension following spinal anaesthesia. The systemic haemodynamic effects of spinal anaesthesia are not well known. In this study, we examine the systemic haemodynamic effects of fractional spinal anaesthesia following intermittent microdosing of a local anesthetic and an opioid. We included 15 patients aged over 65 with considerable comorbidities, planned for emergency hip fracture repair. Patients received a spinal catheter and cardiac output monitoring using the LiDCOplus system. Invasive mean arterial pressure (MAP), cardiac index, systemic vascular resistance index, heart rate and stroke volume index were registered. Two doses of bupivacaine 2,25 mg and fentanyl 15µg were administered with 25 minutes in between. Hypotension was defined as a fall in MAP by >30% or a MAP <65 mmHg

NCT ID: NCT04865614 Completed - Blood Pressure Clinical Trials

Comparison Between Inhalation and Intravenous Induction of Anaesthesia During Interventional Mitral Valve Repair

COMPETENT
Start date: April 1, 2019
Phase:
Study type: Observational

The induction of anaesthesia is one of the most critical situations for high-risk-patients undergoing interventions surgery. For several reasons, it is crucial to maintain adequate blood pressure and cardiac output during this phase. This retrospective cohort study aims to find out if the choice of the induction agent has a major impact on blood pressure and the use of catecholamines during the induction and the interventional procedure in patients undergoing interventional mitral valve repair.

NCT ID: NCT03834454 Completed - Clinical trials for Postoperative Complications

Bupivacaine 5 mg vs 7.5 mg for Spinal Anesthesia in Cesarean Delivery in Indonesian Population

Start date: October 1, 2013
Phase: N/A
Study type: Interventional

This study aims to evaluate the efficacy of hyperbaric 5 mg bupivacaine + fentanyl 25 mcg versus hyperbaric 7.5 mg bupivacaine + fentanyl 25 mcg to lower incidence of hypotension

NCT ID: NCT02979405 Completed - Clinical trials for Hypotension Drug-Induced

Effectiveness of Phenylefrine in Prevention of Hypotension During Spinal Anesthesia for Cesarean Delivery

Start date: January 17, 2017
Phase: Phase 4
Study type: Interventional

Hypotension in patients who are taken to surgery, is a very frequent complication, when the spinal anesthetical technique is used, associating this with significant adverse effects that can lead to morbidity specially in the obstetric patient. The objective of the study is determine if the phenylephrine used of prophylactic form, achieved to prevent the appearance of hypotension in obstetric patients led to Caesarea under spinal anesthesia.

NCT ID: NCT02967029 Completed - Clinical trials for Hypotension Drug-Induced

Effect of Controlled Hypotension on Cerebral Oxygen Saturation

Start date: November 1, 2016
Phase: Phase 4
Study type: Interventional

For a successful functional endoscopic sinus surgery (FESS), it is crucial to provide effective controlled hypotension to reduce blood loss and provide a relatively blood-free surgical environment to facilitate surgery. The goal of controlled hypotension is to maintain an arterial blood pressure which is sufficiently low to allow a reduction in bleeding with offering a superior intraoperative hemodynamic stability during stressful surgical events to maintain intact cerebral microcirculatory auto-regulation. Auto-regulation impairment during controlled hypotension might increase oxygen extraction ratio. Thus monitoring the cerebral oxygen saturation (rSO2) to measure cerebral oxygenation becomes essential and it remains a challenge to clinically assess cerebral oxygenation on a routine basis. Various recent studies reported based on facilitating the induction of controlled hypotension, but the effects of hypotension on cerebral perfusion and oxygenation and its effects on postoperative cognitive function are still poorly characterized. Moreover, the relationship between rSO2 and controlled hypotension has not been established in patients undergoing FESS. Within the last decade, near infrared spectroscopy (NIRS) INVOS® monitors which is clinically most broadly spread technique, can be used for non-invasive assessment of cerebral perfusion by detecting changes in rSO2 by online monitoring of cerebral oxygenation. In our clinical routine for achieving a controlled hypotension, esmolol and remifentanyl are the most commonly used hypotensive agents. The aim of this prospective randomized single blind study was to investigate the influence of remifentanyl as a hypotensive agent in comparison to esmolol on rSO2 by using NIRS and postoperative cognitive function in patients undergoing FESS.