Preoperative Evaluation Before Noncardiac Surgery

Planning intensive care unit admission after elective major abdominal surgery: good clinical practice document by SIAARTI-SIC-ANIARTI

Postoperative complications (PCs) are a major cause of mortality following elective major abdominal surgery (EMAS). The increasing complexity of abdominal procedures, particularly in oncology, may significantly affect patient outcomes. However, this has also introduced a higher variability in postoperative management, and the use of tailored approaches to address critical issues such as hemodynamic stabilization, infection management, and respiratory failure. While elective admission to intensive care units (ICU) is a standard practice to manage high-risk surgical patients, ICU resource allocation is often influenced by local practices and bed availability.This document presents a framework for preoperative ICU admission planning after EMAS. It focuses on the identification of patient and surgical risk factors-using established scoring systems-and provides statements to determine ICU admission. The aim is to optimize resource allocation, reduce PCs, and prevent unplanned ICU admissions. This good clinical practice statement was developed through a multidisciplinary panel formed by selected members coming from SIAARTI (Italian Society of Anesthesia Analgesia Resuscitation and Intensive Care), SIC (Italian Society of Surgery) and ANIARTI (National Association of Critical Area Nurses).The designed scientific board developed, through a systematic literature review and a consensus methodology, a roadmap for defining the priorities of perioperative care based on the complexity of the patient and the surgical procedure. Eventually, the panel worked out statements about six voted queries that could have supported the preoperative indication to postoperative ICU admission.Evaluation of patients' characteristics, comorbidities, and surgical factors are all essential to plan ICU admission for immediate postoperative patient care after EMAS.The presence and severity of comorbidities, assessed through various severity scores, play a crucial role in predicting PCs and guiding ICU admission decisions. Tools such as the American Society of Anesthesiologists physical status, Charlson Comorbidity Index, and Rockwood Frailty Index, along with surgical risk scores and intraoperative events, help define the need for intensive care. Preoperative frailty assessment-achieved using the Clinical Frailty Scale-is essential to anticipate postoperative care needs. Finally, during the postoperative phase, continuous monitoring and reassessment in the post-anesthesia care unit are key to determine whether ICU admission is required. Establishing high-dependency units and tailored care pathways based on individual patient needs and available resources will enhance patient outcomes and optimize postoperative care.

Frailty and malnutrition as predictors of major complications following posterior thoracolumbar fusion in elderly patients: a retrospective cohort study

BACKGROUND CONTEXT

The number of elderly patients with degenerative spinal deformity (DSD) is increasing, and posterior thoracolumbar fusion surgery is an effective treatment option, but there are often postoperative major complications, which may hinder the benefit for elderly patients. Currently, there is no consensus on the best risk assessment technique for predicting major complications in elderly patients undergoing long-segment fusion surgery.

PURPOSE

This study constructs a risk assessment model using the Modified 5-Item Frailty Index (mFI-5) and serum albumin and evaluates its predictive value.

STUDY DESIGN

This is a retrospective analysis of a prospectively established database of DSD.

PATIENT SAMPLE

Consecutive patients (aged 65 and older) who underwent open posterior thoracolumbar fusion surgery for DSD between April 2018 and December 2023 were included.

OUTCOME MEASURES

Outcome measures included postoperative major complications, length of hospital stay (LOS), readmission and reoperation within 30 days, discharge disposition, physiological function recovery.

METHODS

The study reviewed consecutive patients who underwent open posterior thoracolumbar fusion surgery for DSD. Patients were divided into three groups based on the presence or absence of frailty or frailty combined with malnutrition. Spearman ρ analysis was used to assess the correlation between mFI-5 and serum albumin levels. Univariate analyses and multivariate logistic regression were conducted to explore the relationship between frailty and malnutrition defined by mFI-5 and serum albumin and major postoperative complications. Finally, the Receiver Operating Characteristic (ROC) curve was used to evaluate the predictive value of this model for major complications.

RESULTS

Compared to the Normal group (n=59), both the Frailty group (n=121) and the Frailty and Malnutrition group (n=50) had higher rates of major complications (21.5% vs 8.5%, p=.035; 28% vs 8.5%, p=.002). Multivariate logistic regression showed that frailty and malnutrition status, higher ASA score, and more bleeding were independent predictors of major postoperative complications. The ROC curve demonstrated that frailty combined with malnutrition defined by mFI-5 and serum albumin had a larger area under the curve compared to mFI-5 or serum albumin alone (AUC: 0.676; 95% CI: 1.101-14.129; p<.001).

CONCLUSIONS

Compared to considering frailty or malnutrition alone, the combined assessment of frailty and malnutrition using mFI-5 and serum albumin is valuable in predicting major complications in elderly patients undergoing posterior thoracolumbar fusion surgery.

"Detect Anemia Preoperatively": A Scoping Review of Recommendations

Background

Preoperative anemia significantly impacts patient outcomes, prompting increasing global implementation of patient blood management (PBM) measures. Timely diagnosis and differentiation of preoperative anemia are crucial components of PBM to maximize its effectiveness. Despite this, comprehensive implementation remains inconsistent. This scoping review aims to give an overview of recommendations regarding preoperative anemia management to detect gaps in knowledge and emerging ideas.

Methods

A scoping review, adhering to Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, investigated preoperative anemia detection, focusing on patient population, timing, extent, and process of investigations. PubMed and ScienceDirect were searched for English and German articles published in the last 5 years, supplemented by manual selection. Pediatric and obstetric recommendations were excluded. Results were synthesized based on key questions.

Results

Four hundred sixty-five articles were screened, and 80 met the inclusion criteria, including 25 clinical practice guidelines. Most (n = 62) suggested "detect and correct" anemia without further specification. The rest advised conducting investigations early, ideally up to 30 days before major procedures with expected blood loss >500 mL. Recommended tests include blood counts, various iron parameters, folic acid/vitamin B12, inflammation markers, and renal, hepatic, and thyroid function tests. Ten articles described detailed algorithms. Other key recommendations included using reticulocyte hemoglobin, point-of-care Hb measurements, and automated laboratory algorithms. The underlying quality of scientific evidence is heterogeneous.

Conclusions

International recommendations on the detection of preoperative anemia are heterogeneous and often generic. Automated algorithms could make a significant contribution to practicability. While practice-oriented guidelines, especially by surgical societies, could promote standardized and efficient implementation, further research is needed to improve the quality of underlying scientific evidence.

Perioperative Management of the Patient with Diabetes Mellitus

Perioperative evaluation and management of diabetes mellitus is vital to minimize adverse complications before, during, and after surgery. It requires a multidisciplinary approach including the surgery team, anesthesia, endocrinology or internal medicine, and other specialties as needed. This article will discuss the effects of surgery and anesthesia on blood glucose, preoperative evaluation of the person with diabetes, glycemic targets for surgery, adjustment of diabetes medications the day before surgery, in the preoperative, intraoperative, and postoperative areas, management of blood glucose in the preoperative, intraoperative, and postoperative periods, and management of hypoglycemia.

Routine single-incision laparoscopic common bile duct exploration with concomitant cholecystectomy for elderly patients: a 6-year retrospective comparative study

BACKGROUND

While single-incision laparoscopic cholecystectomy (SILC) has gained more popularity in recent years, its application to elderly patients needs further evaluation. Few SILC studies regarded this rapidly growing vulnerable population, and single-incision laparoscopic common bile duct exploration (SILCBDE) was never mentioned. We conducted an observational study of 146 routine SILCBDE to address this issue.

METHODS

One hundred forty-six consecutive patients underwent SILCBDE with concomitant cholecystectomies during a period of 6 years (July 2012-June 2016 and July 2018-July 2020). Forty patients with an age of 65 years or older were the study target. Characteristics and operative outcomes were compared with the remaining 106 younger patients by retrospective chart review. The primary outcomes include complications and mortality, while the secondary outcomes contain intraoperative blood loss, operative time, procedural conversions, postoperative length of hospital stay, and bile duct stone recurrence.

RESULTS

There was no mortality. The bile duct stone clearance rate was 98.6%. The elderly group had higher American Society of Anesthesiologists (ASA) scores, higher comorbidity rate, higher acute cholangitis rate, lower completion intraoperative cholangiography (IOC) rate, longer operative time, more blood loss, longer postoperative hospital stay (p < .001), longer total hospital stay (p < .001), higher procedural conversion rate (p < .05), higher complication rate (p < .001), and the exclusive open conversion (2.5%). The difference in complications derived from Clavien-Dindo grade I.

CONCLUSION

Routine SILCBDE with concomitant cholecystectomy by experienced surgeons is safe and efficacious for elderly patients as for younger patients. Randomized controlled trials are anticipated.

Preoperative Testing

Preoperative medical evaluation can minimize inefficiencies and improve outcomes. Thoughtful use of preoperative testing can aid in that effort, but, conversely, indiscriminate testing can detract from it. The United Kingdom National Institute for Health Care and Excellence, European Society of Anaesthesiology, and American Society of Anesthesiologists (ASA) have all stated that routine preoperative testing is not supported by evidence. Testing is supported only when clinical indications are present. Particularly in low-risk patients, such as those with an ASA classification of 1 or 2 who are undergoing ambulatory procedures, evidence suggests that preoperative testing fails to reduce the risk of complications.

Routine single-incision laparoscopic common bile duct exploration with concomitant cholecystectomy for elderly patients: a 6-year retrospective comparative study

BACKGROUND

While single-incision laparoscopic cholecystectomy (SILC) has gained more popularity in recent years, its application to elderly patients needs further evaluation. Few SILC studies regarded this rapidly growing vulnerable population, and single-incision laparoscopic common bile duct exploration (SILCBDE) was never mentioned. We conducted an observational study of 146 routine SILCBDE to address this issue.

METHODS

One hundred forty-six consecutive patients underwent SILCBDE with concomitant cholecystectomies during a period of 6 years (July 2012-June 2016 and July 2018-July 2020). Forty patients with an age of 65 years or older were the study target. Characteristics and operative outcomes were compared with the remaining 106 younger patients by retrospective chart review. The primary outcomes include complications and mortality, while the secondary outcomes contain intraoperative blood loss, operative time, procedural conversions, postoperative length of hospital stay, and bile duct stone recurrence.

RESULTS

There was no mortality. The bile duct stone clearance rate was 98.6%. The elderly group had higher American Society of Anesthesiologists (ASA) scores, higher comorbidity rate, higher acute cholangitis rate, lower completion intraoperative cholangiography (IOC) rate, longer operative time, more blood loss, longer postoperative hospital stay (p < .001), longer total hospital stay (p < .001), higher procedural conversion rate (p < .05), higher complication rate (p < .001), and the exclusive open conversion (2.5%). The difference in complications derived from Clavien-Dindo grade I.

CONCLUSION

Routine SILCBDE with concomitant cholecystectomy by experienced surgeons is safe and efficacious for elderly patients as for younger patients. Randomized controlled trials are anticipated.

Unexpected intensive care unit admission after surgery: impact on clinical outcome

PURPOSE OF REVIEW

This review is focused on providing insights into unplanned admission to the intensive care unit (ICU) after surgery, including its causes, effects on clinical outcome, and potential strategies to mitigate the strain on healthcare systems.

RECENT FINDINGS

Postoperative unplanned ICU admission results from a combination of several factors including patient's clinical status, the type of surgical procedure, the level of supportive care and clinical monitoring outside the ICU, and the unexpected occurrence of major perioperative and postoperative complications. The actual impact of unplanned admission to ICU after surgery on clinical outcome remains uncertain, given the conflicting results from several observational studies and recent randomized clinical trials. Nonetheless, unplanned ICU admission after surgery results a significant strain on hospital resources. Consequently, this issue should be addressed in hospital policy with the aim of implementing preoperative risk assessment and patient evaluation, effective communication, vigilant supervision, and the promotion of cooperative healthcare.

SUMMARY

Unplanned ICU admission after surgery is a multifactorial phenomenon that imposes a significant burden on healthcare systems without a clear impact on clinical outcome. Thus, the early identification of patient necessitating ICU interventions is imperative.

Patient Outcomes of Definitive Diverticular Hemorrhage After Colonoscopic, Medical, Surgical, or Embolization Treatment

BACKGROUND

There are few reports of clinical outcomes or the natural history of definitive diverticular hemorrhage (DDH).

AIMS

To describe 1-year clinical outcomes of patients with documented DDH treated with colonoscopic hemostasis, angioembolization, surgery, or medical treatment.

METHODS

DDH was diagnosed when active bleeding or other stigmata of hemorrhage were found in a colonic diverticulum during urgent colonoscopy or extravasation on angiography or red blood cell (RBC) scanning. This was a retrospective analysis of prospectively collected data of DDH patients from two referral centers between 1993 and 2022. Outcomes were compared for the four treatment groups. The Kaplan-Meier analysis was for time-to-first diverticular rebleed.

RESULTS

162 patients with DDH were stratified based on their final treatment before discharge-104 colonoscopic hemostasis, 24 medical treatment alone, 19 colon surgery, and 15 angioembolization. There were no differences in baseline characteristics, except for a higher Glasgow-Blatchford score in the angioembolization group vs. the colonoscopic group. Post-treatment, the colonoscopic hemostasis group had the lowest rate of RBC transfusions and fewer hospital and ICU days compared to surgical and embolization groups. The medical group had significantly higher rates of rebleeding and reintervention. The surgical group had the highest postoperative complications.

CONCLUSIONS

Medically treated DDH patients had significantly higher 1-year rebleed and reintervention rates than the three other treatments. Those with colonoscopic hemostasis had significantly better clinical outcomes during the index hospitalization. Surgery and embolization are recommended as salvage therapies in case of failure of colonoscopic and medical treatments.

Network prediction of surgical complication clusters: a prospective multicenter cohort study

Complicated relationships exist in both occurrence and progression of surgical complications, which are difficult to account for using a separate quantitative method such as prediction or grading. Data of 51,030 surgical inpatients were collected from four academic/teaching hospitals in a prospective cohort study in China. The relationship between preoperative factors, 22 common complications, and death was analyzed. With input from 54 senior clinicians and following a Bayesian network approach, a complication grading, cluster-visualization, and prediction (GCP) system was designed to model pathways between grades of complication and preoperative risk factor clusters. In the GCP system, there were 11 nodes representing six grades of complication and five preoperative risk factor clusters, and 32 arcs representing a direct association. Several critical targets were pinpointed on the pathway. Malnourished status was a fundamental cause widely associated (7/32 arcs) with other risk factor clusters and complications. American Society of Anesthesiologists (ASA) score ⩾3 was directly dependent on all other risk factor clusters and influenced all severe complications. Grade III complications (mainly pneumonia) were directly dependent on 4/5 risk factor clusters and affected all other grades of complication. Irrespective of grade, complication occurrence was more likely to increase the risk of other grades of complication than risk factor clusters.

Reducing Infection Rates with Enhanced Preoperative Diabetes Mellitus Diagnosis and Optimization Processes

OBJECTIVES

Hyperglycemia and increased preoperative hemoglobin A1c (HbA1c) are associated with perioperative morbidity and death. For nonurgent operations, adequate glycemic control before surgery is recommended. Our surgical practice needed a process for preoperative diabetes mellitus (DM) diagnosis and glycemic optimization.

METHODS

Our review of the existing preoperative evaluation process found that patients without a DM diagnosis but with random plasma glucose ≥200 mg/dL received no additional screening. Patients with DM routinely receive neither preoperative HbA1c screening nor DM management when HbA1c is ≥8.0%.

RESULTS

A new preoperative evaluation process was designed. HbA1c screening was automatically performed for patients with random plasma glucose ≥200 mg/dL. For patients with a DM diagnosis, an HbA1c test was performed. Specialty consultation was prompted for patients with known DM and HbA1c ≥8.0% and those with no DM diagnosis but HbA1c ≥6.5%. In the first year postimplementation, 9320 patients received a basic metabolic panel; 263 had random plasma glucose ≥200 mg/dL that triggered an HbA1c check. In total, 123 patients (99 with and 24 without a DM diagnosis) were referred to endocrinology; 13 received a new DM diagnosis. Twenty patients had surgery delayed for DM treatment. All of the patients received individualized medication instructions for the perioperative period. Among patients with random plasma glucose ≥200 mg/dL, incidence rates for surgical site infection pre- and postimplementation were 47.8/1000 and 3.8/1000 population.

CONCLUSIONS

The implemented process benefited patients scheduled for nonurgent procedures by optimizing glucose control and lowering infection rates through earlier preoperative DM diagnosis, glycemic management, and standardized patient medication instruction.

Multimodal prehabilitation for major surgery in elderly patients to lower complications: protocol of a randomised, prospective, multicentre, multidisciplinary trial (PREHABIL Trial)

INTRODUCTION

The global volume of surgery is growing and the population ageing, and economic pressure is rising. Major surgery is associated with relevant morbidity and mortality. Postoperative reduction in physiological and functional capacity is especially marked in the elderly, multimorbid patient with low fitness level, sarcopenia and malnutrition. Interventions aiming to optimise the patient prior to surgery (prehabilitation) may reduce postoperative complications and consequently reduce health costs.

METHODS AND ANALYSIS

This is a multicentre, multidisciplinary, prospective, 2-arm parallel-group, randomised, controlled trial with blinded outcome assessment. Primary outcome is the Comprehensive Complications Index at 30 days. Within 3 years, we aim to include 2×233 patients with a proven fitness deficit undergoing major surgery to be randomised using a computer-generated random numbers and a minimisation technique. The study intervention consists of a structured, multimodal, multidisciplinary prehabilitation programme over 2-4 weeks addressing deficits in physical fitness and nutrition, diabetes control, correction of anaemia and smoking cessation versus standard of care.

ETHICS AND DISSEMINATION

The PREHABIL trial has been approved by the responsible ethics committee (Kantonale Ethikkomission Bern, project ID 2020-01690). All participants provide written informed consent prior to participation. Participant recruitment began in February 2022 (10 and 8 patients analysed at time of submission), with anticipated completion in 2025. Publication of the results in peer-reviewed scientific journals are expected in late 2025.

TRIAL REGISTRATION NUMBER

NCT04461301.

Modern preoperative evaluation in ambulatory surgery - who, where and how?

PURPOSE OF REVIEW

Ambulatory surgery is increasingly performed in medically complex patients. This dynamic environment requires new approaches to ensure cost-effective, efficient, and ultimately safe preoperative evaluation of the patient. This review investigates recent advances in the assessment of ambulatory patients, with a special focus on patient screening, digital communication, and multidisciplinary team evaluation.

RECENT FINDINGS

Identifying suitable candidates for ambulatory surgery relies on a variety of medical, surgical, and institutional factors. Identification of high-risk patients and optimization of their treatment can be achieved through multidisciplinary protocols specific to the local institution and in line with current guidelines. Virtual assessment may be sufficient for most patients and provide an efficient evaluation strategy and high patient satisfaction. Prescreening can be supported by preoperative nursing teams.

SUMMARY

The increasing complexity of treatment provided in day surgery offers a unique opportunity to highlight the importance of anesthesiology staff as perioperative caregivers. Preoperative evaluation serves as a central junction to integrate a variety of surgical, medical, and institutional factors to provide safe, satisfactory, and efficient care for patients. Implementing technological innovation to streamline and facilitate this process is paramount.

[Preoperative screening for risk factors]

The demographic change and continuously improving healthcare lead to increasing numbers of older, comorbid patients in elective orthopedic surgery. Perioperative risk assessment is crucial for patient counseling and preoperative planning. Risk factors, such as heart failure, chronic obstructive pulmonary disease, peripheral arterial occlusive disease, anemia, malnutrition, obesity, smoking and insufficiently controlled diabetes mellitus are common in patients undergoing elective orthopedic surgery. A thorough and early screening not only enables the individual assessment of the risk profile but in an elective setting also enables the chance for modification of certain risk factors in order to reduce the individual perioperative risk. Meanwhile, recommendations regarding risk stratification and adjustment of modifiable risk factors are included in national guidelines on the indications for elective total hip arthroplasty.

Modified Frailty Index Combined with a Prognostic Nutritional Index for Predicting Postoperative Complications of Hip Fracture Surgery in Elderly

Aim: There is currently no consensus on the best risk assessment technique for predicting complications after hip surgery in the elderly, which is hindering the accuracy of surgical risk assessment. The goal of this study was to build a risk assessment model and evaluate its predictive value using the modified frailty index (5-mFI) and the prognostic nutritional index (PNI).Methods: A retrospective investigation was undertaken on 150 patients (aged ≥60 years) who had hip fracture surgery. Using univariate and multivariate logistic regression models, the relationship between combined 5-mFI and PNI and the evaluation of postoperative unfavorable outcomes such as infection and unscheduled intensive care unit (ICU) admission was investigated. Finally, utilizing receiver operating characteristic (ROC) curve analysis, the model's predictive value for adverse outcomes following hip fracture surgery in elderly patients was assessed.Results: Univariate and multivariate logistic analyses revealed that preoperative PNI, 5-mFI, ASA, and gender acted as independent predictors of adverse outcomes after hip fracture surgery in the elderly. According to the ROC curve analysis, the predictive model demonstrated a high predictive value for total postoperative complications (AUC: 0.788; 95%CI: 0.715-0.860; p<0.01), infectious complications (AUC: 0.798; 95% CI: 0.727-0.868; P<0.001), and unplanned ICU admission (AUC: 0.783; 95% CI: 0.705-0.861; P<0.001).Conclusions: The multivariable evaluation model, which included 5-mFI and PNI, showed a high predictive value and can hence be applied to predict the adverse outcomes in elderly patients undergoing hip fracture surgery.

Risk Stratification for Postoperative Pulmonary Complications following Major Cardiothoracic and Abdominal Surgery - development of the PPC Risk Prediction Score for Physiotherapists Clinical Decision-making

INTRODUCTION

Major cardiothoracic or abdominal surgery can lead to the development of postoperative pulmonary complications (PPC), associated with increased morbidity and prolonged length of hospital stay. Preventive chest physiotherapy is routinely provided, but optimization of treatment strategies is needed to improve patient outcome and resource utilization.

OBJECTIVE

To develop a preoperative risk prediction scorelr to assist clinical decision-making regarding physiotherapy interventions.

METHODS

A prospective observational single-center study included 339 of 577 eligible patients admitted for major elective cardiothoracic or abdominal surgery. Primary outcome measure was PPC amendable to chest physiotherapy.

RESULTS

A total of 113 patients (33.3%) developed a PPC. Logistic regression modeling identified four independent predictors of PPC presented with odds ratio (OR) and 95% confidence interval. Reduced lung function (FEV₁ > 50% to <75% OR 2.4 (1.4; 4.3) and FEV₁ ≤ 50% OR 4.7 (1.4;16.0)), Recent unintended weight loss OR 4.5 (1.1; 18.7), Sternotomy OR 3.5 (2.0; 6.0) and Thoraco-abdominal incision OR 4.5 (2.1; 10.1). Based on assigned point values, a score dividing patients into three risk groups was developed. The score had moderate discrimination (c-statistic 0.70).

CONCLUSION

By following recommended guidelines (TRIPOD) a preoperative risk prediction score including four predictors of PPC was developed. External validation of the score is currently being investigated.

Incidence of and Risk Factors for Perioperative Cardiovascular Complications in Spine Surgery

Background: An increasing number of patients are opting for spine surgery despite the associated risk of cardiovascular complications. The evidence regarding the incidence and risk factors of cardiovascular complications in spine surgery is insufficient. Therefore, we aimed to determine the incidence and risk factors for cardiovascular complications that occur perioperatively in spine surgery. Methods: This retrospective study included all patients who underwent spine surgery between January 2018 and December 2019 at a single center. Demographic, clinical, and operative data were collected from electronic medical records. The incidence of perioperative cardiac complications was determined. Univariate and multivariate analyses were performed to identify risk factors for the development of perioperative cardiovascular complications in the participants. Results: Of the 1,002 eligible patients enrolled in the study, six developed cardiac complications. Acute myocardial infarction, cardiac arrest, and congestive heart failure occurred in one, two, and three patients, respectively. Risk factors for cardiovascular complications included scoliosis surgery (relative risk: RR, 18.61; 95% confidence interval (CI): 1.346-257.35) and a history of congestive heart failure (RR, 120.97; 95% CI: 2.12-6898.80). Conclusion: The incidence of perioperative cardiovascular complications in patients who underwent spine surgery was 0.6%. High-risk patients should be closely monitored optimally managed throughout the perioperative period.

Incidence and Risk Factors for Perioperative Cardiovascular Complications in Spine Surgery

Background: An increasing number of patients are opting for spine surgery despite the associated risk of cardiovascular complications. The evidence regarding the incidence and risk factors of cardiovascular complications in spine surgery is insufficient. Therefore, we aimed to determine the incidence and risk factors for cardiovascular complications that occur perioperatively in spine surgery. Methods: This retrospective study included all patients who underwent spine surgery between January 2018 and December 2019 at a single center. Demographic, clinical, and operative data were collected from electronic medical records. The incidence of perioperative cardiac complications was determined. Univariate and multivariate analyses were performed to identify risk factors for the development of perioperative cardiovascular complications in the participants. Results: Of the 1,002 eligible patients enrolled in the study, six developed cardiac complications. Acute myocardial infarction, cardiac arrest, and congestive heart failure occurred in one, two, and three patients, respectively. Risk factors for cardiovascular complications included scoliosis surgery (odds ratios (OR): 18.61; 95% confidence interval (CI): 1.346-257.35) and a history of congestive heart failure (OR: 120.97; 95% CI: 2.12-6898.80). Conclusion: The incidence of perioperative cardiovascular complications in patients who underwent spine surgery was 0.6%. High-risk patients should be closely monitored optimally managed throughout the perioperative period.

[Women' social representations of vein catheterization in anesthetic and surgical proceduresRepresentaciones sociales de mujeres sobre el cateterismo venoso en procedimientos anestésicos y quirúrgicos]

Introduction

Vein catheterization is essential for anesthetic and surgical procedures as its characteristics are compatible with stability, flow volume in short periods of time and thick caliber to avoid vascular trauma.

Objective

To identify women's social representations of vein puncture for anesthetic and surgical purposes in the light of Neuman's stressors.

Materials and Methods

A qualitative study with structural focus on social representations was conducted in a medical surgical unit in Brazil. A complete selection sample (n=180) made up of women (age ≥ 18 years) undergoing vein puncture for anesthetic and surgical procedures was carried out. The free lexical retrieval technique was used with "vein puncture for anesthesia and surgery" as inductive term. A prototypical analysis was performed using EVOC 2003 software. Ethical and legal standards were also met.

Results

63% were women aged 20 to 39 years and 56.1% had 10 to 13 years of schooling. In the possible nuclear element, feelings ("pain" and "fear") were found opposed to the contrast zone "(in)certainty-professional skills" and "calm-tranquility" with overactivated objective elements allocated in the first periphery representing intrapersonal, interpersonal and extrapersonal stressors.

Discussion

Pain, as an object of representation, referred to the justifying function when approached by the needle, which reaffirms the presence of fear, nervousness and anxiety (stressors.).

Conclusions

Pain, medication, anxiety and nervousness were identified in social representations, which need to be therapeutically controlled through interpersonal relationships of trust between professionals and users, in addition to vein puncture performance, for which it is necessary to promote continuing education among professionals.

Perioperative Risk Stratification: A Need for an Improved Assessment in Surgery and Anesthesia-A Pilot Study

Background and Objectives: Numerous scoring systems have been introduced into modern medicine. None of the scoring systems assessed both anesthetic and surgical risk of the patient, predict the morbidity, mortality, or the need for postoperative intensive care unit admission. The aim of this study was to compare the anesthetic and surgical scores currently used, for a better evaluation of perioperative risks, morbidity, and mortality. Material and Methods: This is a pilot, prospective, observational study. We enrolled 50 patients scheduled for elective surgery. Anesthetic and surgery risk was assessed using American Society of Anesthesiologists (ASA) scale, Physiological and Operative Severity Score for the enumeration of Mortality and morbidity (P-POSSUM), Acute Physiology and Chronic Health Evaluation (APACHE II), and Surgical APGAR Score (SAS) scores. The real and the estimated length of stay (LOS) were registered. Results: We obtained several statistically significant positive correlations: ASA score–P-POSSUM (p < 0.01, r = 0.465); ASA score–SAS, (p < 0.01, r = −0.446); ASA score–APACHE II, (p < 0.01 r = 0.519); predicted LOS and ASA score (p < 0.01, r = 0.676); predicted LOS and p-POSSUM (p < 0.01, r = 0.433); and predicted LOS and APACHE II (p < 0.01, r = 0.454). A significant negative correlation between predicted LOS, real LOS, ASA class, and SAS (p < 0.05) was observed. We found a statistically significant difference between the predicted and actual LOS (p < 001). Conclusions: Anesthetic, surgical, and severity scores, used together, provide clearer information about mortality, morbidity, and LOS. ASA scale, associated with surgical scores and severity scores, presents a better image of the patient’s progress in the perioperative period. In our study, APACHE II is the best predictor of mortality, followed by P-POSSUM and SAS. P-POSSUM score and ASA scale may be complementary in terms of preoperative physiological factors, providing valuable information for postoperative outcomes.

Myocardial Injury after Non-cardiac Surgery - State of the Art

Aproximadamente 300 milhões de cirurgias não cardíacas são realizadas anualmente no mundo, e eventos cardiovasculares adversos são as principais causas de morbimortalidade no período perioperatório e pós-operatório. A lesão miocárdica após cirurgia não cardíaca (MINS, do inglês myocardial injury after non-cardiac surgery) é uma nova entidade clínica associada com desfechos cardiovasculares adversos. MINS é definida como uma lesão miocárdica que pode resultar em necrose secundária à isquemia, com elevação dos biomarcadores. A lesão tem importância prognóstica e ocorre em até 30 dias após a cirurgia não cardíaca. Os critérios diagnósticos para MINS são: níveis elevados de troponina durante ou em até 30 dias após a cirurgia não cardíaca, sem evidência de etiologia não isquêmica, sem que haja necessariamente sintomas isquêmicos ou achados eletrocardiográficos de isquemia. Recentemente, pacientes com maior risco para MINS têm sido identificados por variáveis clínicas e biomarcadores, bem como por protocolos de vigilância quanto ao monitoramento eletrocardiográfico e dosagem de troponina cardíaca. Pacientes idosos com doença aterosclerótica prévia necessitam medir troponina diariamente no período pós-operatório. O objetivo deste trabalho é descrever este novo problema de saúde pública, seu impacto clínico e a abordagem terapêutica contemporânea.

Complex Pathology and Management in the Obstetric Patient: A Narrative Review for the Anesthesiologist

Pregnant patients may present with multiple complex comorbidities that can affect peripartum management and anesthetic care. The preanesthesia clinic is the ideal setting for early evaluation of high-risk pregnant patients. Comorbidities may include cardiovascular pathology such as valvular abnormalities, septal defects, aortopathies, arrythmias and cardiomyopathies. Additional comorbidities include pulmonary conditions such as obstructive sleep apnea as well as preexisting neuromuscular and skeletal disorders that may impact anesthetic management. Hematologic conditions involving both bleeding diathesis and thrombophilias may present unique challenges for the anesthesiologist. Patients may also present with endocrinopathies including diabetes and obesity. While not as common, high-risk patients may also have preexisting gastrointestinal conditions such as liver dysfunction, renal failure, and even post-transplant status. Ongoing and prior substance abuse, obstetric conditions such as placenta accreta spectrum disorders, and fetal conditions needing ex utero Intrapartum treatment also require advanced planning. Preanesthesia evaluations also help address important ethical and cultural considerations. Counseling patients regarding anesthetic considerations as well as addressing concerns will play a role in reducing racial and ethnic disparities. Anticipatory guidance by means of pre-anesthetic planning can facilitate multidisciplinary communication and planning. This can allow for an impactful and meaningful role in the care provided, allowing for safe maternal care and optimal outcomes.

Information technology-based joint preoperative assessment, risk stratification and its impact on patient management, perioperative outcome, and cost

BACKGROUND

 Despite negative recommendations, routine preoperative testing practice is nearly universal. Our aim is to bring the healthcare providers on one platform by using information-technology based preanaesthetic assessment and evaluate the routine preoperative testing's impact on patient outcome and cost.

METHODS

A prospective, non-randomised study was conducted in a teaching hospital during January 2019-August 2020. A locally developed software and cloud-computing were used as a tool to modify preanaesthesia evaluation. The number of investigations ordered, time taken, cost incurred, were compared with the routine practice. Further data were matched as per surgical invasiveness and the patient's physical status. Appropriate tests compared intergroup differences and p-value <0.05 was considered significant.  Results: Data from 114 patients (58 in routine and 56 in patient and surgery specific) were analysed. Patient and surgery specific investigation led to a reduction in the investigations by 80-90%, hospital visit by 50%, and the total cost by 80%, without increasing the day of surgery cancellation or complications.

CONCLUSION

Information technology-based joint preoperative assessment and risk stratification are feasible through locally developed software with minimal cost. It helps in applying patient and surgery specific investigation, reducing the number of tests, hospital visit, and cost, without adversely affecting the perioperative outcome. The application of the modified method will help in cost-effective, yet quality and safe perioperative healthcare delivery. It will also benefit the public from both service and economic perspective.

Perioperative Assessment of High-Risk Abdominal Surgery: A Case Study

Objectives • To outline the key components of a pre-operative cardiac risk assessment. • To review the major guidelines utilized to assess patients' surgical risks. • To discuss the perioperative management of surgical patients to prevent cardiac and pulmonary complications. • To review the utility of biomarkers in the pre- and post-operative period.