Evidence map›Paper›PMID 33502508›Full record

ArticlePain medicine (Malden, Mass.)2021

Treatment Strategies for Generator Pocket Pain.

Jonathan Bao, Olga Khazen, Zachary T Olmsted, Guy Gechtman, Miriam M Shao, Marisa DiMarzio, Gregory Topp, Vishad V Sukul, Michael D Staudt, Julie G Pilitsis

Abstract read
In one paragraph

Article in Pain medicine (Malden, Mass.), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

8 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Jonathan BaoDepartment of Neuroscience and Experimental Therapeutics, Albany Medical College, Albany, New York, USA.
Olga KhazenDepartment of Neuroscience and Experimental Therapeutics, Albany Medical College, Albany, New York, USA.
Zachary T OlmstedDepartment of Neuroscience and Experimental Therapeutics, Albany Medical College, Albany, New York, USA.
Guy GechtmanDepartment of Neuroscience and Experimental Therapeutics, Albany Medical College, Albany, New York, USA.
Miriam M ShaoDepartment of Neuroscience and Experimental Therapeutics, Albany Medical College, Albany, New York, USA.
Marisa DiMarzioDepartment of Neuroscience and Experimental Therapeutics, Albany Medical College, Albany, New York, USA.
Gregory ToppDepartment of Neuroscience and Experimental Therapeutics, Albany Medical College, Albany, New York, USA.
Vishad V SukulDepartment of Neurosurgery, Albany Medical College, Albany, New York, USA.
Michael D StaudtDepartment of Neurosurgery, Albany Medical College, Albany, New York, USA.
Julie G PilitsisDepartment of Neuroscience and Experimental Therapeutics, Albany Medical College, Albany, New York, USA.ORCID 0000-0001-5717-9345

Funding

High-Resolution, Spinal Cord Stimulation for Non-Opioid Treatment of Neuropathic PainU44NS115111 · NINDS · MICRO-LEADS, INC. · PI MCLAUGHLIN, BRYAN L · 2019 to 2025
$9.8M
MR-Guided Precision Conformal Ablation Therapy for Brain TumorsR01CA166379 · NCI · WORCESTER POLYTECHNIC INSTITUTE · PI FISCHER, GREGORY S, PILITSIS, JULIE GEORGIA · 2013 to 2022
$6.5M
NCI NIH HHS R01 CA166379NINDS NIH HHS U44 NS115111
6 · The paper itself

Abstract

objectiveGenerator site pain is a relatively common phenomenon in patients undergoing spinal cord stimulation (SCS) that complicates management and effective pain relief. This pain may be managed conservatively, with repositioning of the battery and, in some cases, with explant. Here we explore our experience with management of generator site pain ("pocket pain") in a large single-center study.

methodsAll SCS permanent implants and implantable pulse generator (IPG) placements over 9 years were reviewed. Of 785 cases, we identified 43 patients with pocket pain (5.5%). Demographics and treatments of the pocket pain cohort were analyzed.

resultsThe mean age (± SEM) of the pocket pain cohort was 46.86 ± 1.06, and there were 10/33 males/females. Females were overrepresented in pocket pain cohort (76.7%) when compared with the total SCS cohort (59.0%) (X2 = 5.93, P = 0.015). Diagnosis included failed back surgery syndrome (51.2%), complex regional pain syndrome (23.3%), and chronic neuropathic pain (25.5%). No patients improved with conservative therapy. All patients either went on to revision (n = 23) or explant (n = 20). Time from initial surgery to development of pocket pain was 7.5 months (range: 0.3-88) and from pocket pain to revision surgery was 4.5 months (range: 0.4-26). In addition, significantly more pocket pain patients (65.1%) had workers' compensation (WC) insurance compared with patients without pocket pain (24.9%) (X2 = 33.3, P < 0.001).

conclusionIn our institutional experience, pocket pain was inadequately managed with conservative treatments. Being female and having SCS filed under WC increased risk of pocket pain. Future work will explore the nuances in device placement based on body shape and manual activity responsibilities.

Indexed as

Chronic PainFailed Back Surgery SyndromeNeuralgiaSpinal Cord StimulationFemaleHumansMalePain ManagementPain MeasurementTreatment OutcomeChronic PainComplicationsFailed Back Surgery SyndromeNeuropathic PainPocket NeuritisPocket PainSpinal Cord Stimulation

Identifiers

PMID33502508
PMCPMC8185558

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.