Mostrando entradas con la etiqueta adicción. Mostrar todas las entradas
Mostrando entradas con la etiqueta adicción. Mostrar todas las entradas

martes, 6 de marzo de 2018

Adicción a propofol / Propofol addiction

Marzo 6, 2018. No. 3014
Neurobiología de la adicción al propofol y la evidencia de apoyo: ¿cuál es el nuevo desarrollo
Neurobiology of Propofol Addiction and Supportive Evidence: What Is the New Development?
Brain Sci. 2018 Feb 22;8(2). pii: E36. doi: 10.3390/brainsci8020036.
Abstract
Propofol is a short-acting intravenous anesthetic agent suitable for induction and maintenance of general anesthesia as well as for procedural and intensive care unit sedation. As such it has become an unparalleled anesthetic agent of choice in many institutional and office practices. However, in addition to its idealistic properties as an anesthetic agent, there is accumulating evidence suggesting its potential for abuse. Clinical and experimental evidence has revealed that not only does propofol have the potential to be abused, but also that addiction to propofol shows a high mortality rate. Based on this evidence, different researchers have shown interest in determining the probability of propofol to be an addictive agent by comparing it with other drugs of abuse and depicting a functional similitude that involves the mesocorticolimbic pathway of addiction. In light of this, the Drug Enforcement Agency and the American Society of Anesthesiologists have put forth certain safety recommendations for the use of propofol. Despite this, the abuse potential of propofol has been challenged at different levels and therefore the preeminent focus will be to further validate the linkage from medicinal and occasional use of propofol to its addiction, as well as to explore the cellular and molecular targets involved in establishing this linkage, so as to curb the harm arising out of it. This review incorporates the clinical and biomolecular evidence supporting the abuse potential of propofol and brings forth the promising targets and the foreseeable mechanism causing the propofol addiction phenotypes, which can be called upon for future developments in this field.
KEYWORDS: GABAA receptor; abuse potential; fospropofol; glycine receptor; propofol
Reporte del primer caso de adicción al propofol en Turquía
A Case Report of the First Propofol Addiction in Turkey.
Turk J Anaesthesiol Reanim. 2015 Dec;43(6):434-6. doi: 10.5152/TJAR.2015.54872. Epub 2015 Dec 1.
Abstract
Propofol is a potent anaesthetic drug and also an effective sedative agent. Also, propofol may be used for non-anaesthetic purposes such as the treatment of seizures, migraine and tension headache in clinical practice. It has been abused, particularly among healthcare providers with high mortality rate. This report presents the case of a propofol-dependent patient who was an emergency medicine doctor with no difficulties in obtaining the drug. He himself visited our clinic for the treatment of propofol dependence. We started the patient's treatment with pharmacotherapeutic medicines and individual psychotherapy. Fourteen days after starting the therapy, the patient was discharged from hospital on his own will and he did not attend the follow-up visits in the outpatient clinic. Then, we were informed of his death, which was suspected to have occurred owing to drug intoxication in the hospital in which he worked. Nevertheless, the reason of death was important; the importance of this case report is to provide information regarding the drug's dependence profile. This is the first case report indicating propofol dependence in Turkey. Because of its easy access, rapid onset time and short duration of action, propofol dependence is increasing. We think that adding propofol to the controlled drug list and improving the knowledge of the clinicians regarding its abuse potential may limit the dependence cases.
KEYWORDS: Propofol; abuse; dependence; euphoria
Potencial de abuso del propofol utilizado para la sedación en la endoscopia gástrica y su correlación con las características del sujeto.
Abuse potential of propofol used for sedation in gastric endoscopy and its correlation with subject characteristics.
Korean J Anesthesiol. 2013 Nov;65(5):403-9. doi: 10.4097/kjae.2013.65.5.403. Epub 2013 Nov 29.
Abstract
BACKGROUND: Propofol has been widely used for an induction and/or maintenance of general anesthesia, or for sedation for various procedures. Although it has many ideal aspects, there have been several cases of drug abuse and addiction. The authors investigated whether there are abuse liable groups among the general population. METHODS: We surveyed 169 patients after gastric endoscopic examination, which used propofol as a sedative, with the Addiction Research Center Inventory (ARCI) questionnaire. Other characteristics of the patients, such as past history, smoking habits, depression, anxiety, alcohol abuse liability and sleep disturbance, were recorded by history taking and several questionnaires before the exam. RESULTS: Propofol had a high Morphine-Benzedrine Group (MBG) score (representative value for euphoria) of 6.3, which is higher than marijuana, and a Pentobarbital-Chlorpromazine-Alcohol Group (PCAG) score (representative value of sedation) of 8.1, which is lower than most opioids. The MBG score showed no statistically significant correlation between any of the characteristics of the groups. In females, the PCAG score showed a correlation with age, and in males, it showed a correlation with a sleeping problem. CONCLUSIONS: Propofol had relatively high euphoria and low residual sedative effects. It had a more potent sedative effect in the female group who were young, and in the male group who had a low sleep quality index. There were differences in the abuse liability from a single exposure to propofol in the general population. Further study is needed to evaluate the abuse liability of repeated exposure. KEYWORDS: Addictive behavior; Dependency; Hypnotics and sedatives; Intravenous substance abuse; Propofol
Aumento de DeltaFosB por propofol en núcleo de rata accumbens.
Upregulation of DeltaFosB by propofol in rat nucleus accumbens.
Anesth Analg. 2011 Aug;113(2):259-64. doi: 10.1213/ANE.0b013e318222af17. Epub 2011 Jun 3.
Abstract
BACKGROUND: It is well established that all drugs of abuse converge onto common circuitry and induce chronic addiction by modulating the addictive signaling molecules such as DeltaFosB in the mesocorticolimbic system. Recent case reports suggest that propofol may have abuse potential. However, there is no direct evidence showing that propofol has an effect on the key addictive signaling molecules in the mesocorticolimbic system. In this study, we determined the effect of propofol on the expression of DeltaFosB in rat nucleus accumbens (NAc) and the potential mechanism involved. METHODS: To determine the effect of propofol on the expression of DeltaFosB in rat NAc, 2 well-known addictive agents, ethanol and nicotine, were used as positive controls. Experiments were conducted on 36 male Sprague-Dawley rats (150 to 200 g). These animals were divided into 4 treatment groups: vehicle (saline), propofol (10 mg/kg), ethanol (1 g/kg), and nicotine (0.5 mg/kg). All drugs were administered by intraperitoneal injection twice per day for 7 days. The animals were then killed and their NAc were isolated for DeltaFosB measurements. RESULTS: As expected, both ethanol and nicotine significantly increased DeltaFosB expression. Intriguingly, propofol elicited a robust increase in DeltaFosB expression similar to that of ethanol and nicotine. Moreover, the dopamine receptor D1, an upstream molecule of DeltaFosB, was also significantly upregulated by propofol. CONCLUSIONS: In the current study, we have identified, for the first time, that propofol is able to induce the addictive signaling molecule DeltaFosB in NAc via dopamine receptor D1. This new evidence at the molecular level suggests that propofol may have abuse potential.
El propofol nanomolar estimula la transmisión del glutamato a las neuronas dopaminérgicas: ¿un posible mecanismo de abuso potencial?
Nanomolar propofol stimulates glutamate transmission to dopamine neurons: a possible mechanism of abuse potential?
J Pharmacol Exp Ther. 2008 Apr;325(1):165-74. doi: 10.1124/jpet.107.132472. Epub 2008 Jan 23.
Abstract
Anesthesiologists among physicians are on the top of the drug abuse list, and the mechanism is unclear. Recent studies suggest occupation-related second-hand exposure to i.v. drugs, including propofol, may play a role. Growing evidence indicates that propofol is one of the choices of drugs being abused. In this study, we show that propofol at minute concentrations increases glutamatergic excitatory synaptic transmission and discharges of dopamine neurons in the ventral tegmental area (VTA). We found that acute application of propofol (0.1-10 nM) to the VTA in midbrain slices of rats increased the frequency but not the amplitude of spontaneous excitatory postsynaptic currents (EPSCs) mediated by alpha-amino-3-hydroxy-5-methylisoxazole-4-propionic acid receptors. We observed that propofol increased the amplitude but decreased the paired-pulse ratio of EPSCs evoked by stimulation in the absence and the presence of gabazine (SR 95531), a GABA(A) receptor antagonist. Moreover, the propofol-induced facilitation of EPSCs was mimicked by 6-phenyl-4-azabicyclo[5.4.0]undeca-7,9,11-triene-9,10-diol (SKF38393), an agonist of dopamine D(1) receptor, and by 1-[2-(diphenylmethoxy)ethyl]-4-(3-phenylpropyl)piperazine dihydrochloride (GBR 12935), a dopamine reuptake inhibitor, but blocked by (+/-)-7-bromo-8-hydroxy-3-methyl-1-phenyl-2,3,4, 5-tetrahydro-1H-3-benzazepine hydrochloride (SKF83566), a D(1) antagonist, or by depleting dopamine stores with reserpine. Finally, 1 nM propofolincreased the spontaneous discharge rate of dopamine neurons. These findings suggest that propofol at minute concentrations enhances presynaptic D(1) receptor-mediated facilitation of glutamatergic synaptic transmission and the excitability of VTA dopamine neurons, probably by increasing extracellular dopamine levels. These changes in synaptic plasticity in the VTA, an addiction-related brain area might contribute to the development of propofol abuse and the increased susceptibility to addiction of other drugs.
Asegurar la declaración de posición de Propofol
Securing Propofol Position Statement
The American Association of Nurse Anesthetists (AANA) supports the well-being, safety, and professional self-care of Certified Registered Nurse Anesthetists and Student Registered Nurse Anesthetists. The AANA recognizes that anesthesia professionals have an increased occupational risk of substance use disorder, as well as the professional and personal consequences of substance use disorder
Adicción al propofol: estudio de 22 casos tratados
Addiction to propofol: a study of 22 treatment cases.
J Addict Med. 2013 May-Jun;7(3):169-76. doi: 10.1097/ADM.0b013e3182872901.
Abstract
OBJECTIVE: To review and report the history and clinical presentation of a cohort of health care professionals (HCPs) who have abused the drug propofol. METHODS: The authors queried a clinical database (the HCP Database) that contained information about HCPs treated at a large addictioncenter between 1990 and 2010. Patients who reported propofol use were removed from the HCP Database and placed in a second database referred to herein as the Propofol Database. The medical records of each of the cases in the Propofol Database were pulled and carefully reviewed; a clinical case history of each case was prepared. The Propofol Database was expanded by this chart review, adding demographics, drugs used, course of substance use, other clinical history, presenting signs, diagnoses, and comorbid conditions. At this point, the case histories and databases and were anonymized. When variables were present in both data sets, significance was tested between the HCP Database and the Propofol Database. When comparable data were not present in the HCP Database, the authors reported simple percentages within the Propofol Database. This study focused on gender, medical education and specialty, drugs used, course of illness, and comorbid conditions. RESULTS: Compared with the composite treatment population of HCPs during the same time, records showed that the propofol group was more likely to work in the operating theater, be female, and have training as an anesthesiologist or certified registered nurse anesthetist. Presentation into treatment from the propofol cohort more commonly occurred soon after beginning propofol use, often presenting in a dramatic fashion such as motor vehicle accidents or other physical injuries. When such injuries occurred, it was a direct result of acute propofol intoxication. The number of cases arriving in treatment increased over the duration of the study. The propofol group frequently suffered with a depressive illness and had a history of earlier life trauma. They had a high frequency of biological relatives with substance dependence. The most common subjective response as to why they began using propofol was to induce sleep. Most of these patients identified propofol as one of their preferred drugs of abuse. CONCLUSIONS: This study suggests the incidence and/or detection rate of propofol abuse in HCPs is increasing. Women and anesthesia personnel were overrepresented in the propofol cohort. Propofol-dependent patients commonly have a history of depression and earlier life trauma. A rapid downhill course and physical injury are common adverse effects of propofol abuse. The time from initial use to treatment entry is often contracted when compared with other drugs of abuse making the diagnosis of a true dependence disorder and disposition after treatment more difficult.
CONCLUSIONES: Este estudio sugiere que la tasa de incidencia y / o detección de abuso de propofol en HCP está aumentando. Las mujeres y el personal de anestesia estaban sobrerrepresentados en la cohorte de propofol. Los pacientes dependientes de propofol comúnmente tienen antecedentes de depresión y de traumas anteriores en la vida. Un curso de descenso rápido y lesiones físicas son efectos adversos comunes del abuso de propofol. El tiempo desde el uso inicial hasta la entrada al tratamiento a menudo se contrae cuando se compara con otras drogas de abuso, haciendo que el diagnóstico de un verdadero trastorno de dependencia y la disposición después del tratamiento sea más difícil.
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Anestesiología y Medicina del Dolor

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viernes, 13 de enero de 2017

Opioides / Opioids

Enero 13, 2017. No. 2568







Opioides en pacientes con enfermedades hepáticas. Revisión sistemática
Opioid Drugs in Patients With Liver Disease: A Systematic Review.
Hepat Mon. 2016 Mar 6;16(4):e32636. doi: 10.5812/hepatmon.32636. eCollection 2016.
Abstract
CONTEXT: The liver, one of the most important organs of the body, is known to be responsible for several functions. The functional contribution of the liver to the metabolism of carbohydrates, protein, drugs and toxins, fats and cholesterol and many other biological processes are still unknown. Liver disorders are classified into two types: acute and chronic. Different drugs are used in liver diseases to treat and control pain. Most pain relief medications such as opioids are metabolized via the liver; therefore, the adverse reactions of drugs are probably higher for patients with liver disease. The current study aimed to evaluate the effects of opioid drugs on patients with liver disease; therefore, it is necessary to select suitable opioids for such patients. EVIDENCE ACQUISITION: This review was written by referring to research literature including 70 articles and four textbooks published from 1958 to 2015 on various reputable sites. Searches were carried out on the key phrases of narcotic pain relievers (opioids), acute and chronic hepatic failure, opioid adverse drug reactions, drug-induced liver injury (DILI) and other similar keywords. References included a variety of research papers (descriptive and analytical), intervention and review articles. RESULTS: In patients with liver disease, administration of opioid analgesics should be observed, accurately. As a general rule, lower doses of drugs should be administered at regular intervals based on the signs of drug accumulation. Secondly, the interactions of opioid drugs with different levels of substrates of the P450 cytochrome enzyme should be considered. CONCLUSIONS: Pain management in patients with liver dysfunction is always challenging to physicians because of the adverse reactions of drugs, especially opioids. Opioids should be used cautiously since they can cause sedation, constipation and sudden encephalopathy effects. Since the clearance of these drugs in patients with hepatic insufficiency is decreased, the initial dose must be decreased, the intervals between doses should be increased and some patients need to be continuously assessed.
KEYWORDS: Adverse Drug Reactions; Liver Disease; Opioids

Prevención de sobredosis de opioides y ¨kits¨ de rescate de naloxona: lo que sabemos y lo que no sabemos.
Opioid overdose prevention and naloxone rescue kits: what we know and what we don't know.
Addict Sci Clin Pract. 2017 Jan 7;12(1):4. doi: 10.1186/s13722-016-0068-3.
Abstract
The opioid use and overdose crisis is persistent and dynamic. Opioid overdoses were initially driven in the 1990s and 2000s by the increasing availability and misuse of prescription opioids. More recently, opioid overdoses are increasing at alarming rates due to wider use of heroin, which in some places is mixed with fentanyl or fentanyl derivatives. Naloxone access for opioid overdose rescue is one of the US Department of Health and Human Services' three priority areas for responding to the opioid crisis. This article summarizes the known benefits of naloxone access and details unanswered questions about overdose education and naloxone rescue kits. Hopefully future research will address these knowledge gaps, improve the effectiveness of opioid overdose education and naloxone distribution programs, and unlock the full promise of naloxone rescue kits.
KEYWORDS: Naloxone rescue kits; Opioid overdose education; Overdose prevention
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Neurobiología de la dependencia de opiáceos en la creación de vulnerabilidad a la adicción.
Neurobiology of opioid dependence in creating addiction vulnerability.
F1000Res. 2016 Jul 19;5. pii: F1000 Faculty Rev-1748. doi: 10.12688/f1000research.8369.1. eCollection 2016.
Abstract
Opioid drugs are potent modulators of many physiological and psychological processes. When given acutely, they can elicit the signature responses of euphoria and analgesia that societies have coveted for centuries. Repeated, or chronic, use of opioids induces adaptive or allostatic changes that modify neuronal circuitry and create an altered normality - the "drug-dependent" state. This state, at least that exhibited by those maintained continuously on long-acting opioid drugs such as methadone or buprenorphine, is generally indistinguishable from the drug-naïve state for most overt behaviors. The consequences of the allostatic changes (cellular, circuit, and system adaptations) that accompany the drug-dependent state are revealed during drug withdrawal. Drug cessation triggers a temporally orchestrated allostatic re-establishment of neuronal systems, which is manifested as opposing physiological and psychological effects to those exhibited by acute drug intoxication. Some withdrawal symptoms, such as physical symptoms (sweating, shaking, and diarrhea) resolve within days, whilst others, such as dysphoria, insomnia, and anxiety, can linger for months, and some adaptations, such as learned associations, may be established for life. We will briefly discuss the cellular mechanisms and neural circuitry that contribute to the opioid drug-dependent state, inferring an emerging role for neuroinflammation. We will argue that opioid addictive behaviors result from a learned relationship between opioids and relief from an existing or withdrawal-induced anxiogenic and/or dysphoric state. Furthermore, a future stressful life event can recall the memory that opioid drugs alleviate negative affect (despair, sadness, and anxiety) and thereby precipitate craving, resulting in relapse. A learned association of relief of aversive states would fuel drug craving in vulnerable people living in an increasingly stressful society. We suggest that this route to addiction is contributive to the current opioid epidemic in the USA.
KEYWORDS: Learned Associative Model; aversive states; opioid epidemic; pass-forward allostasis; withdrawal relief
Uso de opioides en pacientes de cirugía ambulatoria. Prevalencia, manejo y resultados
Opioid use among same-day surgery patients: Prevalence, management and outcomes.
Pain Res Manag. 2015 Nov-Dec;20(6):300-4. Epub 2015 Sep 10.
Abstract
OBJECTIVES: To determine whether the prevalence of opioid use among patients requiring elective same-day admission (SDA) surgery is greater than the 2.5% prevalence found in the general population. Secondary objectives were to assess compliance with expert recommendations on acute pain management in opioid-tolerant patients and to examine clinical outcomes. METHODS: A retrospective review of 812 systematically sampled adult SDA surgical cases between April 1, 2008 and March 31, 2009 was conducted. RESULTS: Among 798 eligible patients, 148 (18.5% [95% CI 15.9% to 21.2%]) were prescribed opioids, with 4.4% prescribed long-acting opioids (95% CI 3.0% to 5.8%). Use of opioids was most prevalent among orthopedic and neurosurgery patients. Among the 35 patients on long-acting opioids who had a high likelihood of being tolerant, anesthesiologists correctly identified 33, but only 13 (37%) took their usual opioid preoperatively while 22 (63%) had opioids continued postoperatively. Acetaminophen, nonsteroidal anti-inflammatory drugs and pregabalin were ordered preoperatively in 18 (51%), 15 (43%) and 18 (51%) cases, respectively, while ketamine was used in 15 (43%) patients intraoperatively. Acetaminophen, nonsteroidal anti-inflammatory drugs and pregabalin were ordered postoperatively in 31 (89%), 15 (43%) and 17 (49%) of the cases, respectively. No differences in length of stay, readmissions and emergency room visits were found between opioid-tolerant and opioid-naive patients. CONCLUSION: Opioid use is more common in SDA surgical patients than in the general population and is most prevalent within orthopedic and neurosurgery patients. Uptake of expert opinion on the management of acute pain in the opioid tolerant patient population is lacking.
Muerte de celebridades relacionadas a las drogas. Estudio transversal
Drug-related celebrity deaths: A cross-sectional study.
Subst Abuse Treat Prev Policy. 2016 Dec 9;11(1):40.
Abstract
BACKGROUND: Celebrities are at risk for premature mortality as well as drug-related death. Despite being a vulnerable patient group, celebrities influence people's health behaviours through biological, psychological and social processes. Therefore, celebrity endorsement of the topic could be one way to challenge the current "opioid endemic". Our aim was to better understand the factors surrounding drug-related celebrity deaths by investigating the incidence as well as substances used between 1970 and 2015 using a cross-sectional study design. METHOD: We searched public databases for drug-related celebrity deaths between 1970 and 2015. They were categorized for sex, profession, age at death, year of death and substances involved. The main outcome measures are descriptive values including number of drug deaths per year and substances involved. Secondary outcome measures are analytical questions to examine whether and which factors influence age at death and year of death (e.g. type of substance use disorder). RESULTS: We identified 220 celebrities who died a drug-related death with a clear indication of involved substances between 1970 and 2015. The average age at death was 38.6 years; 75% were male. Most celebrities died between the age of 25 and 40. The number of drug-related deaths increased in the 21st century, with a significant increase in the use of prescription opioids. Deaths involving prescription opioids and heroin were associated with a significantly lower mean age at death compared to deaths where these substances were not involved. CONCLUSIONS: Compared to the 20th century, the total number of celebrities who died from a drug-related death in the 21st century increased, possibly due to an increased involvement of prescription opioids. Negative effects on individual health decisions of celebrity's followers could be the result.
KEYWORDS: Addiction; Celebrity; Opioids
El impacto de la prescripción de opioides en todas las causas de muerte en Canadá
The impact of prescription opioids on all-cause mortality in Canada.
Imtiaz S1,2, Rehm J3,4,5,6,7,8.
Subst Abuse Treat Prev Policy. 2016 Aug 1;11(1):27. doi: 10.1186/s13011-016-0071-4.
Abstract
An influential study from the United States generated considerable discussion and debate. This study documented rising morbidity and mortality in midlife among white non-Hispanic Americans in the 21st century, with clear linkages of all-cause mortality to increasing rates of poisonings, suicides and chronic liver disease deaths. All of these causes of deaths are strongly related to the use of legal and illegal substances, but the study stressed the importance of prescription opioids. Given the similarities between the United States and Canada in prescription opioid use, the assessment of similar all-cause mortality trends is relevant for Canada. As this commentary highlights, the all-cause mortality shifts seen in the United States cannot be seen in Canada for either sex or age groups. The exact reasons for the differences between the two countries are not clear, but it is important for public health to further explore this question.
KEYWORDS: All-cause mortality; Canada; Drug poisoning mortality; Opioid analgesics
Prescripción de opioides para dolor y la epidemia de muerte por sobredosis. ¿Puede la reducción dramática de la mortalidad por anestesia servir como un ejemplo?
Opioid prescriptions for pain and epidemic of overdose death: can the dramatic reduction in anesthesia mortality serve as an example?
J Pain Res. 2016 Jun 28;9:453-6. doi: 10.2147/JPR.S108067. eCollection 2016.
Abstract
The annual number of US deaths from prescription-opioid overdose quadrupled between 1999 and 2010 and in 2010 alone reached 16,651. Deaths from opioid overdose have now surpassed the historic death toll from another drug-related epidemic - anesthesia mortality. In 1954, Beecher and Todd published reliable data on anesthesia-related mortality in the US, estimating the annual number of deaths to be nearly 5,000. Presently anesthesia/anesthetics are reported as the underlying cause in approximately 34 deaths in the US annually. This spectacular decline in anesthesia-related mortality could serve as an example for attempts to curb the epidemic of opioid overdose death. The main reason that led to the dramatic decline in anesthesia-related mortality is the context in which anesthetics are used. It includes training of the anesthesia providers, the introduction of specific standards of patient safety, and anesthesia monitoring. I suggest that the introduction of a similar multifactorial proper context for the use of opioids in the treatment of chronic nonmalignant pain might be the same "game changer" it was for safety in anesthesia.
KEYWORDS: aberrant opioid-related behavior; addiction; apprenticeship; chronic pain; metrics of opioid effectiveness; opioid-use disorder; treatment compliance

5to Curso Internacional de Anestesiología cardiotorácica, vascular, ecocardiografía y circulación extracorpórea. SMACT
Mayo 4-6, 2017, Ciudad de México
Informes Dr. Hugo Martínez Espinoza bajamed@hotmail.com 
Regional Anesthesiology and Acute Pain Medicine Meeting
April 6-8, 2017, San Francisco, California, USA
ASRA American Society of Regional Anesthesia and Pain Medicine
California Society of Anesthesiologists
Annual Meeting April 27-30, 2017
San Francisco California
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