Hypovolemia

Heart Failure

Diastolic Dysfunction

Systolic Dysfunction

Venous; Return (Anomaly)

Preoperative transthoracic echocardiography

Echocardiography

Sunderby hospital

Prevalence of Hypovolemia and Heart Failure in Non-cardiac Surgery

Screening of preoperative level of venous return

Screening of incidence of preoperative systolic and diastolic function

Tomi Myrberg

Principal investigator

Umeå University

30 morbidly obese subjects scheduled for bariatric surgery by laparoscopic Roux-en-Y gastric bypass (RYGB) will be consecutively enrolled for the study.
The individualized goal-directed therapy (IGDT) with focus on level of venous return will be implemented in two steps in the intervention group. First, preoperative optimizing of venous return will be performed 45 minutes before surgery in a preoperative room with TTE. Second, after induction of anaesthesia perioperative fluid therapy will be implemented by utilizing the FloTrac-device.

20 morbidly obese subjects scheduled for bariatric surgery by laparoscopic Roux-en-Y gastric bypass (RYGB) will consecutively be enrolled for the study. Conventional monitoring will be conducted perioperatively.

Hypotension

Anomaly; Venous Return

Dehydration

Goal directed fluid therapy

Department of anaesthesiology and intensive care, Sunderby county hospital

Perioperative Fluid Management in Morbidly Obese Patients

Perioperative Fluid Management With Transthoracic Echocardiography and Pulse-contour Device in Morbidly Obese Patients

The primary aim of the study is to evaluate need of perioperative hydration during laparoscopic bariatric surgery. Type and amount of all perioperative fluids infused will be registered. Timing for administration of fluids will be analysed in three steps (preoperative, operating room (OR) and postoperative).

Mean arterial blood pressure (MAP) will be measured before induction of anaesthesia, 5 min after endotracheal intubation, 5 min after deep reverse Trendelenburg position and pneumoperitoneum in the intervention and the control groups. In addition, MAP will be registered continuously during surgery.

A baseline for Nt-proBNP and creatinine will be taken before i.v fluids preoperatively on the day of surgery. Control samples will be gathered 12 hours postoperatively.

Senior lecturer, MD PhD

Ultrasound

Sterile Puncture Area

Blood Sampling

We test if a product type of the modified commercial drape Tegaderm(R) can bee used when taking blood samples under the guidance af ultrasound. The drape is used to keep the puncture area sterile and clean of ultrasound gel.

A product type of the modified commercial drape Tegaderm (R)

Aarhus University Hospital, Skejby

Ultrasound-guided Blood Sampling With a Sterile and Dry Puncture Area

Does the Tegaderm (R) device provide adequate protection so no gel will get into the puncture area? Is it possible to move the probe as the operator desires despite of the Tegaderm (R) device?

Sofie Thorn

Research year student

Aarhus University Hospital

Danish Cancer Society

Surgical Wound Infection

Surgery, Colon

Mild intraoperative hypercapnia (50 mmHg vs. 30 mmHg)

Supplemental oxygen (80% vs. 30%)

Dexamethasone

Placebo

Outcomes Research Institute

Cleveland Clinic

University of Vienna

Mater Misericordiae Hospital

The Effects of Hypercapnia, Supplemental Oxygen, and Dexamethasone on Surgical Wound Infection

The Cleveland Clinic

hypovolemia

obesitat

obesity

hypovolemia/obesitat

Prevalence of Hypovolemia and Heart Failure in Non-cardiac Surgery

Perioperative Fluid Management in Morbidly Obese Patients

Ultrasound-guided Blood Sampling With a Sterile and Dry Puncture Area

The Effects of Hypercapnia, Supplemental Oxygen, and Dexamethasone on Surgical Wound Infection

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