Perioperative haemodynamic monitoring

INTRODUCTION: Laryngoscopy and intubation are associated with the reflex response of hypertension, tachycardia and other intraoperative complications. Nebulised route drug administration and entropy-guided induction enable optimal intubating conditions. AIMS: To compare pre-induction nebulisation between 0.75% ropivacaine and 2% lignocaine in blunting the nasotracheal intubation response. MATERIALS AND METHODS: A total of 100 patients undergoing elective faciomaxillary surgeries were prospectively randomised to receive pre-induction nebulisation: 5mL of 2% lignocaine (100mg) (Group L) or 5mL of 0...

Haemodynamic monitoring and management are cornerstones of perioperative care. The goal of haemodynamic management is to maintain organ function by ensuring adequate perfusion pressure, blood flow, and oxygen delivery. We here present guidelines on "Intraoperative haemodynamic monitoring and management of adults having non-cardiac surgery" that were prepared by 18 experts on behalf of the German Society of Anaesthesiology and Intensive Care Medicine (Deutsche Gesellschaft für Anästhesiologie und lntensivmedizin; DGAI)...

AIMS: Hip fractures are some of the most common fractures encountered in orthopaedic practice. We aimed to identify whether perioperative hypotension is a predictor of 30-day mortality, and to stratify patient groups that would benefit from closer monitoring and early intervention. While there is literature on intraoperative blood pressure, there are limited studies examining pre- and postoperative blood pressure. METHODS: We conducted a prospective observational cohort study over a one-year period from December 2021 to December 2022...

BACKGROUND AND AIMS: Cytoreduction surgery (CRS) with hyperthermic intraperitoneal chemotherapy (HIPEC) is an extensive surgery associated with significant fluid shift and blood loss. The haemodynamic management and fluid therapy protocol may impact postoperative outcomes. This systematic review was conducted to find the effect of haemodynamic monitoring and perioperative fluid therapy in CRS-HIPEC on postoperative outcomes. METHODS: We searched PubMed, Scopus and Google Scholar...

The microcirculation describes the network of the smallest vessels in our cardiovascular system. On a microcirculatory level, oxygen delivery is determined by the flow of oxygen-carrying red blood cells in a given single capillary (capillary red blood cell flow) and the density of the capillary network in a given tissue volume (capillary vessel density). Handheld vital videomicroscopy enables visualisation of the capillary bed on the surface of organs and tissues but currently is only used for research. Measurements are generally possible on all organ surfaces but are most often performed in the sublingual area...

BACKGROUND: Pulmonary endarterectomy (PEA) is the only definitive and potentially curative therapy for chronic thromboembolic pulmonary hypertension (CTEPH), associated with impressive improvements in symptoms and haemodynamics. However, it is only offered at a few centres in South Africa. The characteristics and outcomes of patients undergoing PEA in Cape Town have not been reported previously. OBJECTIVES: To assess the difference in World Health Organization functional class (WHO-FC) before and at least 6 weeks after surgery...

Pentalogy of Fallot is a rare congenital cyanotic heart disease; few patients with uncorrected disease survive to childbearing age. Cardiovascular changes during pregnancy and delivery can lead to haemodynamic instability, while anaesthesia can cause right-to-left shunting and worsen hypoxaemia.We present the learning points from the anaesthetic management of an obstetric patient with uncorrected pentalogy of Fallot. We describe the successful application of general anaesthesia, choice of transoesophageal echocardiography for real-time haemodynamic monitoring and management, and the comprehensive multidisciplinary care of this high cardiovascular risk obstetric patient perioperatively...

BACKGROUND: Magnesium sulphate (MgSO4) is conventionally used in the treatment of eclampsia, refractive arrhythmias, asthma, etc. In our study, we aimed to study the analgesic effects of MgSO4 as an adjuvant to fentanyl and reduce the intraoperative opioid requirement to decrease their adverse effects. METHODS: A total of 122 patients scheduled for hysteroscopy were randomly divided into two groups. Patients in the magnesium group (group A) received intravenous MgSO4 50 mg/kg in 100 ml of isotonic saline over 15 minutes before anaesthesia induction and then 15 mg/kg per hour by continuous intravenous infusion...

BACKGROUND: Patients undergoing high-risk surgery show haemodynamic instability and an increased risk of morbidity. However, most of the available data concentrate on the intraoperative period. This study aims to characterise patients with advanced haemodynamic monitoring throughout the whole perioperative period using electrical cardiometry. METHODS: In a prospective, observational, monocentric pilot study, electrical cardiometry measurements were obtained using an Osypka ICON™ monitor before surgery, during surgery, and repeatedly throughout the hospital stay for 30 patients with primary ovarian cancer undergoing multivisceral cytoreductive surgery...

INTRODUCTION: Postoperative morbidity and mortality in patients undergoing major emergency gastrointestinal surgery are a major burden on healthcare systems. Optimal management of perioperative intravenous fluids may reduce mortality rates and improve outcomes from surgery. Previous small trials of cardiac-output guided haemodynamic therapy algorithms in patients undergoing gastrointestinal surgery have suggested this intervention results in reduced complications and a modest reduction in mortality...

PURPOSE OF REVIEW: The aim of this study was to review the role of haemodynamic monitoring in the perioperative setting, highlighting who are the patients who most benefit, to describe the type of devices, to analyse the scientific evidence and to suggest algorithms of haemodynamic care in high-risk surgical patients. RECENT FINDINGS: In the last 50 years, many advances have contributed to better understand cardiovascular physiology at bedside, and haemodynamic monitoring has moved from invasive methods to minimally invasive and noninvasive devices...

Devices for monitoring blood haemodynamics can guide the perioperative management of patients with cardiovascular disease. Current technologies for this purpose are constrained by wired connections to external electronics, and wireless alternatives are restricted to monitoring of either blood pressure or blood flow. Here we report the design aspects and performance parameters of an integrated wireless sensor capable of implantation in the heart or in a blood vessel for simultaneous measurements of pressure, flow rate and temperature in real time...

Medical colleges are now developing or refurbishing their anaesthesia intensive care units. In most teaching colleges, the residency post includes working in the critical care unit (CCU). Critical care is a rapidly evolving and popular super-speciality for postgraduate students. In some hospitals, anaesthesiologists play a key role in the management of the CCU. As perioperative physicians, all anaesthesiologists should be aware of the recent advancements in diagnostic and monitoring gadgets and investigations in critical care so that they may manage perioperative events effectively...

Introduction: Kidney transplant graft function depends on optimised haemodynamics. However, high fluid volumes risk hypervolaemic complications. The Edwards Lifesciences ClearSight™ device permits fluid titration through markers of preload and beat-to-beat blood pressure monitoring. We evaluated the implementation of a novel goal-directed haemodynamic therapy protocol to determine whether patient outcomes had improved. Design: A retrospective evaluation of standard care versus goal-directed haemodynamic therapy in adults undergoing kidney transplantation was performed in a single centre between April 2016 and October 2019...

Pulmonary hypertension (PH) is a haemodynamic manifestation of cardiorespiratory and non-cardiorespiratory pathologies. Cardiorespiratory pathologies account for nearly three-fourths of patients with PH. It is now increasingly being recognised due to routine requests for transthoracic echocardiographic examination in the perioperative setting in patients undergoing intermediate- to high-risk non-cardiac surgery. The increased risks of perioperative morbidity and mortality attributed to PH have been widely acknowledged in the literature...

BACKGROUND: Epidural administration of local anaesthetic agents provides good intraoperative antinociception for orthopaedic procedures of the pelvis and the pelvic limb. However, in cats the spinal cord extends approximately to the level of the first sacrococcygeal vertebra, and therefore the sacrococcygeal epidural could be a safer alternative to the lumbosacral epidural in cats. This case series describes perioperative analgesia and the haemodynamic status of seven client-owned cats that received sacrococcygeal epidural injection of 0...

BACKGROUND: Airway complications are frequent after lung transplantation (LT), as they affect up to 23% of recipients. The implication of perioperative extracorporeal membrane oxygenation (ECMO) support and haemodynamic instability has never been specifically assessed. The first aim of this study was to explore the impact of perioperative ECMO support on bronchial anastomotic dehiscence (BAD) at Day 90 after LT. METHODS: This prospective observational monocentric study analysed BAD in all consecutive patients who underwent LT in the Bichat Claude Bernard Hospital, Paris, France, between January 2016 and May 2019...

Intermediate and high-risk patients undergoing surgery are often managed on a surgical ward in the absence of haemodynamic or ventilatory support requirements necessitating intensive care unit or high dependency unit admission. We describe a model of care for the multidisciplinary management of selected postoperative patients and the epidemiology of patients managed using this model at a tertiary Australian hospital.Of 25,139 patients undergoing inpatient surgery at our institution over a two-year period, 506 (2%) were referred to the Perioperative Medicine team...

INTRODUCTION: Local anaesthetics used in spinal anaesthesia have a limited duration of action. To prolong postoperative analgesia, adjuvants, mainly opioids, are used. As µ agonist drugs have side effects, other receptor agonists are considered. Nalbuphine is a safe and effective kappa agonist adjuvant. AIM: To compare the analgesic efficacy between fentanyl and nalbuphine adjuvants added to 3 mL of 0.5% intrathecal hyperbaric bupivacaine. MATERIALS AND METHODS: This prospective, double-blind, comparative study was conducted in 60 patients of either sex belonging to the American Society of Anesthesiologists classes I and II aged 18-65 years undergoing lower limb surgery with entropy monitoring, randomly allocated into two groups...

Intraoperative hypotension is common and is associated with adverse postoperative outcomes. A substantial fraction of all perioperative hypotension occurs shortly after induction of anaesthesia and before the procedure begins. Arterial pressure monitoring is usually intermittent in this period, with a risk of missing significant hypotensive events. Continuous blood pressure monitoring might help reduce hypotension. There are now strong arguments that if an arterial line is indicated, it should be placed before induction of anaesthesia to obtain maximal benefit...