scholarly journals Postoperative residual curarization as a complication after general anesthesia

2021 ◽  
Author(s):  
Paweł Radkowski ◽  
Justyna Dawidowska-Fidrych ◽  
Radosław Fidrych ◽  
Iwona Podlińska ◽  
Oliwia Mandziuk-Radkowska ◽  
...  
Keyword(s):  
Neuromuscular Block ◽  
Muscle Relaxation ◽  
Complete Recovery ◽  
Small Degree ◽  
Neuromuscular Blocking ◽  
Striated Muscles ◽  
Upper Respiratory Tract ◽  
Increased Risk ◽  
Residual Curarization ◽  
Postoperative Residual

Introduction: Postoperative residual curarization (PORC) is a common complication but rarely taken into account during the postoperative period. PORC is associated with an increased risk of morbidity and mortality in anesthetized patients. Even small degrees of residual muscle relaxation of the transverse striated muscles can have serious clinical consequences for patients including a decline of upper respiratory tract function or swallowing disorders. Aim: The aim of the work is to discuss the problem of PORC, its risk factors and diagnosis, as well as to identify the most common errors, which can be made even by experienced anesthesiologists and can lead to an increased risk of developing this life-threatening complication. Material and methods: This work is based on the available literature and the authors’ experience. Results and discussion: PORC caused by non-depolarizing neuromuscular blocking agents is a known problem in daily clinical practice. The effects of PORC significantly increase the risk of respiratory complications (hypoxia, pulmonary edema, atelectasis and pneumonia). Patients can report discomfort even with a small degree of residual muscle block above a train of four (TOF) ratio of 0.8. Complete recovery of neuromuscular function does not occur until the TOF ratio is greater or equal to 0.9. Conclusions: The primary strategy to avoid residual neuromuscular block and to improve the safety precautions of patients undergoing anesthesia is not by means of clinical evaluation but consistent monitoring of neuromuscular conduction and extubating the patient when the TOF ratio more than 0.9.

Pharyngeal Function and Breathing Pattern during Partial Neuromuscular Block in the Elderly

2014 ◽  
Vol 120 (2) ◽  
pp. 312-325 ◽  
Author(s):  
Anna I. Hårdemark Cedborg ◽  
Eva Sundman ◽  
Katarina Bodén ◽  
Hanne Witt Hedström ◽  
Richard Kuylenstierna ◽  
...  
Keyword(s):  
Neuromuscular Block ◽  
The Elderly ◽  
Pulmonary Complications ◽  
Neuromuscular Blocking ◽  
Residual Effects ◽  
Airway Protection ◽  
Healthy Elderly ◽  
Increased Risk ◽  
Train Of Four ◽  
Pharyngeal Function

Abstract Background: Intact pharyngeal function and coordination of breathing and swallowing are essential for airway protection and to avoid respiratory complications. Postoperative pulmonary complications caused by residual effects of neuromuscular-blocking agents occur more frequently in the elderly. Moreover, elderly have altered pharyngeal function which is associated with increased risk of aspiration. The purpose of this study was to evaluate effects of partial neuromuscular block on pharyngeal function, coordination of breathing and swallowing, and airway protection in individuals older than 65 yr. Methods: Pharyngeal function and coordination of breathing and swallowing were assessed by manometry and videoradiography in 17 volunteers, mean age 73.5 yr. After control recordings, rocuronium was administered to obtain steady-state train-of-four ratios of 0.70 and 0.80 followed by spontaneous recovery to greater than 0.90. Results: Pharyngeal dysfunction increased significantly at train-of-four ratios 0.70 and 0.80 to 67 and 71%, respectively, compared with 37% at control recordings, and swallowing showed a more severe degree of dysfunction during partial neuromuscular block. After recovery to train-of-four ratio of greater than 0.90, pharyngeal dysfunction was not significantly different from the control state. Resting pressure in the upper esophageal sphincter was lower at all levels of partial neuromuscular block compared with control recordings. The authors were unable to demonstrate impaired coordination of breathing and swallowing. Conclusion: Partial neuromuscular block in healthy elderly individuals causes an increased incidence of pharyngeal dysfunction from 37 to 71%, with impaired ability to protect the airway; however, the authors were unable to detect an effect of partial neuromuscular block on coordination of breathing and swallowing.

scholarly journals Sugammadex versus neostigmine in pediatric cancer patients undergoing outpatient surgical procedures

2020 ◽  
Vol 11 (2) ◽  
pp. 2741-2746
Author(s):  
AbdelfattahAbdelsattar Hussein ◽  
Mohamed Mostafa Hegazy ◽  
Mohamed Adly Elramely ◽  
Amani Gaber Mohamed
Keyword(s):  
Surgical Procedures ◽  
Neuromuscular Block ◽  
Pediatric Population ◽  
Good Alternative ◽  
Primary Outcome Measure ◽  
Early Postoperative Period ◽  
Neuromuscular Blocking ◽  
Extubation Time ◽  
Pediatric Cancer Patients ◽  
Residual Curarization

Neuromuscular blocking agents (NMBAs) are still required for the pediatric population. Residual neuromuscular block is a common complication in the early postoperative period. The objective of this study is to compare the efϑicacy of sugammadex versus neostigmine for reversing NMB in pediatric patients with cancer who undergo outpatient surgical procedures. This double-blinded study included 80 children with different oncological diagnoses, aged 2-18 years, scheduled for outpatient surgical procedures. They were randomly divided into two equal groups; Group N received neostigmine 0.03 mg/kg with atropine 0.02 mg/kg and Group S received sugammadex 2 mg/kg at the end of surgery. The patients were clinically assessed for NMB recovery and extubated. The primary outcome measure was the time from NMB reversal to recovery of the TOF ratio to 0.9% (recovery time). The secondary outcomes included the time between reversal injection and extubation (extubation time) and possible adverse events. The time to recovery of the TOF ratio to 0.9 and the time between reversal injection and extubation were signiϑicantly shorter in S Group (p< 0.001). The time to reach TOF ratio of 0.9 was not correlated with age, anesthesia time, or the dose of the neuromuscular blocker. None of the children developed respiratory depression or postoperative residual curarization. Relatively few patients developed arrhythmia, hypotension, and nausea and vomiting with no signiϑicant difference between the two groups. Sugammadex is a good alternative to neostigmine for reversal of neuromuscular block in outpatient surgical procedures in children with cancer; it safely provides faster NMB reversal and extubation time.

scholarly journals Sugammadex in antagonism of neuromuscular block in anesthesia: a clinical and economic profile

2009 ◽  
Vol 10 (3) ◽  
pp. 103-114
Author(s):  
Viola Sacchi ◽  
Sergio Iannazzo ◽  
Francesco Giunta
Keyword(s):  
Impact Analysis ◽  
Neuromuscular Block ◽  
Dose Range ◽  
Cost Savings ◽  
Neuromuscular Blocking ◽  
Phase Iii ◽  
Pivotal Phase ◽  
Residual Curarization ◽  
Deep Neuromuscular Block ◽  
Anaesthesia Care

Sugammadex is a modified cyclodextrin which acts by encapsulating and inactivating the neuromuscular blocking agents (NMBAs) rocuronium and vecuronium, used to induce relaxation of skeletal muscles during surgery and to facilitate endotracheal intubation. The procedure of reversal of the block at the end of surgery can influence the time to discharge from the operating room and post-operative residual curarization (PORC) incidence, which is related to an increased rate of adverse respiratory events in the post-anaesthesia care unit. Cholinesterase inhibitors are frequently used to reverse neuromuscular block, but their use is associated with potential cardiovascular and respiratory side-effects. The recommended dose-range for sugammadex is 2-16 mg/kg, depending on the level of block: the dose is approximately 2 mg/kg for reversal of moderate blockade, 4 mg/kg for deep blockade and 16 mg/kg for the immediate reversal of a neuromuscular blockade as early as 3 minutes after 1-1.2 mg/kg of rocuronium. Four pivotal, phase III trials studied sugammadex in routine reversal of moderate, deep neuromuscular block and in the immediate reversal of rocuronium-induced block. In all the cases the drug demonstrated of being significantly more efficient than other reversal strategies, providing a faster reversal than the most used anticholinesterase comparator neostigmine. Sugammadex also appeared to have an acceptable safety profile. Acquisition cost of sugammadex is greater than that of neostigmine, but cost-savings related to the reduced theatre time and to the reduced incidence of PORC episodes can offset it. A Budget Impact analysis in the perspective of the hospital has been conducted for the Italian setting resulting in a total cost-save of 7,420 € for one year of activity. In conclusion, sugammadex appears to be a valuable innovation in anesthesiology. This drug represents a safe and effective alternative to anticholinesterase agents.

Do Children Who Experience Laryngospasm Have an Increased Risk of Upper Respiratory Tract Infection?

1996 ◽  
Vol 85 (3) ◽  
pp. 475-480. ◽  
Author(s):  
Mark S. Schreiner ◽  
Irene O'Hara ◽  
Dorothea A. Markakis ◽  
George D. Politis
Keyword(s):  
Confidence Interval ◽  
Respiratory Infection ◽  
Odds Ratio ◽  
Signs And Symptoms ◽  
Control Group ◽  
Upper Respiratory Tract ◽  
Upper Respiratory Infection ◽  
Airway Surgery ◽  
Increased Risk ◽  
Upper Respiratory

Background Laryngospasm is the most frequently reported respiratory complication associated with upper respiratory infection and general anesthesia in retrospective studies, but prospective studies have failed to demonstrate any increase in risk. Methods A case-control study was performed to examine whether children with laryngospasm were more likely to have an upper respiratory infection on the day of surgery. The parents of all patients (N = 15,183) who were admitted through the day surgery unit were asked if their child had an active or recent (within 2 weeks of surgery) upper respiratory infection and were questioned about specific signs and symptoms to determine if the child met Tait and Knight's definition of an upper respiratory infection. Control subjects were randomly selected from patients whose surgery had occurred within 1 day of the laryngospasm event. Results Patients who developed laryngospasm (N = 123) were 2.05 times (95% confidence interval 1.21-3.45) more likely to have an active upper respiratory infection as defined by their parents than the 492 patients in the control group (P &lt; or = 0.01). The development of laryngospasm was not related to Tait and Knight's definition for an upper respiratory infection or to recent upper respiratory infection. Children with laryngospasm were more likely to be younger (odds ratio = 0.92, 95% confidence interval 0.87-0.99), to be scheduled for airway surgery (odds ratio = 2.08, 95% confidence interval 1.21-3.59), and to have their anesthesia supervised by a less experienced anesthesiologist (odds ratio = 1.69, 95% confidence interval 1.04-2.7) than children in the control group. Conclusion Laryngospasm was more likely to occur in children with an active upper respiratory infection, children who were younger, children who were undergoing airway surgery, and children whose anesthesia were supervised by less experienced anesthesiologists. Understanding the risk factors and the magnitude of the likely risk should help clinicians make the decision as to whether to anesthetize children with upper respiratory infection.

scholarly journals Transiently increased risk of breast cancer after childbirth: implications for fertility treatments and surrogacy

2020 ◽  
Vol 35 (6) ◽  
pp. 1253-1255
Author(s):  
Zeev Blumenfeld ◽  
Norbert Gleicher ◽  
Eli Y Adashi
Keyword(s):  
Breast Cancer ◽  
Breast Cancer Risk ◽  
Cancer Risk ◽  
Meta Analysis ◽  
Small Degree ◽  
Short Term ◽  
Benefit Ratio ◽  
Professional Societies ◽  
Fertility Treatments ◽  
Increased Risk

Abstract Whereas longstanding dogma has purported that pregnancies protect women from breast cancer, a recent meta-analysis now mandates reconsideration since it reported an actual higher breast cancer risk for more than two decades after childbirth before the relative risk turns negative. Moreover, the risk of breast cancer appears higher for women having their first birth at an older age and with a family history and it is not reduced by breastfeeding. The process of obtaining informed consent for all fertility treatments, therefore, must make patients aware of the facts that every pregnancy, to a small degree, will increase the short-term breast cancer risk. This observation may be even more relevant in cases of surrogacy where women agree to conceive without deriving benefits of offspring from assuming the risk, thus creating a substantially different risk-benefit ratio. Consequently, it appears prudent for professional societies in the field to update recommendations regarding consent information for all fertility treatments but especially for treatments involving surrogacy.

scholarly journals The association between training load indices and upper respiratory tract infections (URTIs) in elite soccer players

2021 ◽  
pp. 174795412110204
Author(s):  
Caoimhe Tiernan ◽  
Thomas Comyns ◽  
Mark Lyons ◽  
Alan M Nevill ◽  
Giles Warrington
Keyword(s):  
Respiratory Tract ◽  
Signs And Symptoms ◽  
Training Load ◽  
Soccer Players ◽  
Upper Respiratory Tract ◽  
Increased Risk ◽  
Upper Respiratory ◽  
Tract Infections ◽  
Load Indices ◽  
And Training

This study aimed to investigate the association between training load indices and Upper Respiratory Tract Infection (URTI) across different lag periods in elite soccer players. Internal training load was collected from 15 elite soccer players over one full season (40 weeks). Acute, chronic, Acute:Chronic Workload Ratio (ACWR), Exponentially Weighted Moving Averages (EWMA) ACWR, 2, 3 and 4-week cumulative load, training strain and training monotony were calculated on a rolling weekly basis. Players completed a daily illness log, documenting any signs and symptoms, to help determine an URTI. Multilevel logistic regression was used to analyze the associations between training load indices and URTIs across different lag periods (1 to 7-days). The results found a significant association between 2-week cumulative load and an increased likelihood of a player contracting an URTI 3 days later (Odds Ratio, 95% Confidence Interval: OR = 2.07, 95% CI = 0.026-1.431). Additionally, a significant association was found between 3-week cumulative load and a players’ increased risk of contracting an URTI 4 days later (OR = 1.66, 95% CI = 0.013–1.006). These results indicate that accumulated periods of high training load (2- and 3-week) associated with an increased risk of a player contracting an URTI, which may lead to performance decrements, missed training sessions or even competitions.

Is There an Increased Risk of Haemophilus influenzae Septicemia in Children with Sickle Cell Anemia?

PEDIATRICS ◽  
1983 ◽  
Vol 71 (6) ◽  
pp. 927-931
Author(s):  
Darleen Powars ◽  
Gary Overturf ◽  
Ernest Turner
Keyword(s):  
Haemophilus Influenzae ◽  
Sickle Cell ◽  
Sickle Cell Anemia ◽  
Clinical Course ◽  
Febrile Child ◽  
Low Grade ◽  
Upper Respiratory Tract ◽  
Pneumococcal Infections ◽  
Increased Risk ◽  
Upper Respiratory

The risk of Haemophilus influenzae septicemia/meningitis to children who have sickle cell anemia (SS) has been determined to be greater than that seen among normal infants. Of ten bacteriologically proven cases, eight episodes of infection were observed among 234 children with sickle cell anemia (645 person-years), who were less than 5 years of age. There was one case per 69 infants with sickle cell anemia who were less than 18 months old and one case per 36 children with sickle cell anemia between 19 and 59 months of age. Unexpectedly, two infections occurred among 224 children (824 person-years), aged 5 to 9 years; both died. Contrary to the rapid clinical course of pneumococcal infections in children with sickle cell anemia H influenzae septicemia was regularly heralded by a greater than 24-hour prodrome of upper respiratory tract infection, low-grade fever, and otitis media. Three (30%) preventable deaths occurred. Antibiotic therapy for the febrile child with sickle cell anemia must be predicated on the known 400-fold increased risk of pneumococcal septicemia in those less than 5 years old and the fourfold risk of H influenzae septicemia in those less than 9 years of age.

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