objective: to investigate the decrease in hemoglobin concentration and hematocrit during elective surgery. methods: this was a prospective study being performed in nemazee hospital of shiraz university of medical sciences. we included a total of 50 american society of anesthesiology (asa) i and ii patients undergoing elective minor surgeries. perioperative fluid administration was performed for...

BACKGROUND Perioperative fluid therapy remains a highly debated topic. Its purpose is to maintain or restore effective circulating blood volume during the immediate perioperative period. Maintaining effective circulating blood volume and pressure are key components of assuring adequate organ perfusion while avoiding the risks associated with either organ hypo- or hyperperfusion. Relative to per...

Recent studies suggest that current fluid strategies may result in excessive administration of both fluids and electrolytes. Perioperative fluid administration is dictated by an algorithmic approach, taking account of pre-operative deficit, maintenance requirements, and extrapolated third space losses. Salt and water overload is associated with pulmonary edema, ileus, and delayed wound healing....

Fluid Choice for Resuscitation and Perioperative Administration Fluid administration is considered the cornerstone of resuscitative therapy for the treatment of hypotension, hypovolemia, and physical trauma. Isotonic salt (crystalloid) solutions (e.g., lactated Ringer’s solution [LRS]) are the most frequently recommended fluids for this therapy because they are considered to be safe, efficaciou...

BACKGROUND Recent studies on perioperative fluid administration in patients undergoing major abdominal surgery have suggested that increased fluid loads are associated with worse perioperative outcomes. However, results of retrospective analyses of the relationship between intraoperative fluid (IOF) administration and perioperative outcomes in patients undergoing pancreaticoduodenectomy (PD) ar...

Guidelines for the perioperative administration of fluid are often based on static hemodynamic targets such as central venous pressure, and delayed volume status indexes such as blood pressure, heart rate, capillary refill, and urine output. Traditional fluid management protocols also rely heavily on algorithmic estimates of fluid deficit, intravascular fluid volume status, fluid loss, and basa...

OBJECTIVES/HYPOTHESIS To analyze the incidence and severity of hyponatremia in patients receiving synthetic desmopressin (DDAVP) in the perioperative setting of oropharyngeal surgery in the treatment of von Willebrand disease and to propose a standardized protocol for perioperative fluid resuscitation and postoperative sodium monitoring after DDAVP administration. STUDY DESIGN Retrospective m...

The evidence underpinning oesophageal Doppler monitoring (ODM)-guided fluid administration in colorectal surgery has not been critically appraised despite quantitative meta-analyses. A qualitative systematic review of the methodology and findings of all published randomised-controlled trials (RCTs) exploring ODM-guided fluid administration in major abdominal surgery was conducted. Four, well-de...

BACKGROUND During the perioperative period an adequate intravascular volume must be maintained. Current recommendations overestimate perioperative volume requirements. AIM To compare perioperative volume administration using standard monitoring methods or guided by left ventricular filling parameters. MATERIAL AND METHODS Twenty-four patients subjected to colon resection were randomized to ...