The Definition of Block “Success” in the Contemporary Literature

Abdallah, Faraj W.; Brull, Richard

doi:10.1097/aap.0b013e3182583b00

Cited by 18 publications

(12 citation statements)

References 63 publications

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“…The definition of "block success," however, is variable as demonstrated in a recent review. 1 For example, there are few data to suggest that specific acute pain outcomes are improved by US guidance when PNB is successful. 2 The difference, however, may be in block success rates for nonexperts.…”

Section: What's Newmentioning

confidence: 99%

Evidence Base for the Use of Ultrasound for Upper Extremity Blocks

Choi

McCartney

2016

Regional Anesthesia and Pain Medicine

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This article reviews and summarizes randomized, controlled studies that have assessed ultrasound (US) guidance for brachial plexus blocks in comparison with other nerve localization methods as well as those that have compared different US-guided brachial plexus block techniques. Both PubMed and EMBASE databases were searched using the MeSH terms anesthetic technique, brachial plexus, and ultrasound. Studies were included if they had randomized allocation comparing US with another conventional nerve localization technique or if they compared 2 different US-guided techniques, such as single versus multiple injections. Each study was classified as a categorical outcome as being supportive, unclear, or negative for the use of US. These were compared with χ analysis with the null hypothesis that US provides no benefit for brachial plexus blocks. Forty-seven studies met the inclusion criteria, and 29 compared US guidance to landmark or peripheral nerve stimulation techniques. Our analysis of the literature supports the use of US over other nerve localization techniques as being beneficial for several block performance outcomes including block performance time, reducing the number of needle passes and the incidence of vascular puncture, shortening sensory block onset time, and improving block success.

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Section: What's Newmentioning

confidence: 99%

Evidence Base for the Use of Ultrasound for Upper Extremity Blocks

Choi

McCartney

2016

Regional Anesthesia and Pain Medicine

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“…30 Do all trials define an efficient block similarly? Obviously, they do not-there is no overall agreement on the real meaning of a concept that is essential for locoregional anesthesia.…”

Section: Critical Analysis Of Ultrasound Advantagesmentioning

confidence: 99%

Development of complications in ultrasound-guided regional anesthesia vs neurostimulation

Sáez

Tornero

Escolar

et al. 2012

Techniques in Regional Anesthesia and Pain Management

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“…In the adult and pediatric literature, the concept of “success” of a particular interventional procedure has remained vaguely defined. For instance, it is found in no more than 50% of anesthesia trials of regional anesthesia . It is even harder to find a definition of efficacy of the interventional procedures as part of a comprehensive multidimensional pain treatment program.…”

Section: Introductionmentioning

confidence: 99%

Interventional procedures in children and adolescents with chronic non‐cancer pain as part of a multidisciplinary pain treatment program

Vega

Rivera

Echevarría

et al. 2018

Pediatric Anesthesia

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Summary Background Interventional procedures are part of multidisciplinary pain treatment programs to treat chronic non‐cancer pain conditions in children and adolescents. However, the real benefit of these interventions remains unclear. Aims The aim of this study was to analyze the potential benefits of the interventional procedures in children and adolescents with chronic non‐cancer pain in the setting of a multidisciplinary pain treatment program. Methods We retrospectively reviewed the charts of 98 children and adolescents receiving 314 diagnostic or therapeutic interventional procedures. We applied the following definitions of efficacy Short‐term positive therapeutic effect: block that produced a minimum of 50% reduction in pain intensity for at least 4 weeks. Long‐term positive therapeutic effect: a patient with a minimum of 50% reduction in pain intensity for at least 6 months Full recovery: a patient free of pain, not taking analgesics with normal physical and role functioning 6 months after the last procedure. Results Seventy‐six of 112 diagnostic blocks (68%) were associated with a 50% reduction in pain intensity for at least 4 weeks after the procedure. One hundred and sixty‐six of 202 therapeutics blocks (82%) were associated with a short‐term benefit. Seventy‐two of 98 patients (73%) referred a 50% reduction in their pain intensity (17%) or had full recovery 6 months after the procedures (56%) and a MPTP. Psychiatric comorbidity and more advanced age were factors associated with failure to respond to interventional procedures. Conclusion The use of interventional procedures may represent a valid therapeutic option, associated with positive clinical outcomes within a multidisciplinary program.

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The Definition of Block “Success” in the Contemporary Literature

Cited by 18 publications

References 63 publications

Evidence Base for the Use of Ultrasound for Upper Extremity Blocks

Evidence Base for the Use of Ultrasound for Upper Extremity Blocks

Development of complications in ultrasound-guided regional anesthesia vs neurostimulation

Interventional procedures in children and adolescents with chronic non‐cancer pain as part of a multidisciplinary pain treatment program

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