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  1. Article ; Online: Spinal Cord Burst Stimulation vs Placebo Stimulation for Patients With Chronic Radicular Pain After Lumbar Spine Surgery.

    Thomson, Simon / Kallewaard, Jan Willem / Gatzinsky, Kliment

    JAMA

    2023  Volume 329, Issue 10, Page(s) 847

    MeSH term(s) Humans ; Chronic Pain/etiology ; Chronic Pain/therapy ; Low Back Pain/etiology ; Low Back Pain/therapy ; Lumbar Vertebrae/surgery ; Spinal Cord ; Electric Stimulation Therapy ; Radiculopathy/etiology ; Radiculopathy/therapy ; Failed Back Surgery Syndrome/etiology ; Failed Back Surgery Syndrome/therapy
    Language English
    Publishing date 2023-01-19
    Publishing country United States
    Document type Letter ; Comment
    ZDB-ID 2958-0
    ISSN 1538-3598 ; 0254-9077 ; 0002-9955 ; 0098-7484
    ISSN (online) 1538-3598
    ISSN 0254-9077 ; 0002-9955 ; 0098-7484
    DOI 10.1001/jama.2022.24742
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Response to "the Effectiveness of Dorsal Root Ganglion Neurostimulation for the Treatment of Chronic Pelvic Pain and Chronic Neuropathic Pain of the Lower Extremity: A Comprehensive Review of the Published Data".

    Chapman, Kenneth B / Kallewaard, Jan Willem

    Pain medicine (Malden, Mass.)

    2021  Volume 22, Issue 11, Page(s) 2771–2772

    MeSH term(s) Chronic Pain/therapy ; Ganglia, Spinal ; Humans ; Lower Extremity ; Neuralgia/therapy ; Pelvic Pain/therapy
    Language English
    Publishing date 2021-04-26
    Publishing country England
    Document type Letter ; Comment
    ZDB-ID 2015903-1
    ISSN 1526-4637 ; 1526-2375
    ISSN (online) 1526-4637
    ISSN 1526-2375
    DOI 10.1093/pm/pnab146
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Response to Ter Meulen et al Effect of Transforaminal Epidural Corticosteroid Injections in Acute Sciatica.

    Van Boxem, Koen / van der Gaag, Antal / Van Zundert, Jan / Kallewaard, Jan Willem

    The Clinical journal of pain

    2024  Volume 40, Issue 2, Page(s) 135

    MeSH term(s) Humans ; Sciatica/drug therapy ; Adrenal Cortex Hormones/therapeutic use ; Treatment Outcome ; Injections, Epidural
    Chemical Substances Adrenal Cortex Hormones
    Language English
    Publishing date 2024-02-01
    Publishing country United States
    Document type Journal Article
    ZDB-ID 632582-8
    ISSN 1536-5409 ; 0749-8047
    ISSN (online) 1536-5409
    ISSN 0749-8047
    DOI 10.1097/AJP.0000000000001180
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Introduction of a Post-Anaesthesia Care Unit in a Teaching Hospital Is Associated with a Reduced Length of Hospital Stay in Noncardiac Surgery: A Single-Centre Interrupted Time Series Analysis.

    Koning, Nick J / Lokin, Joost L C / Roovers, Lian / Kallewaard, Jan Willem / van Harten, Wim H / Kalkman, Cor J / Preckel, Benedikt

    Journal of clinical medicine

    2024  Volume 13, Issue 2

    Abstract: Background: A post-anaesthesia care unit (PACU) may improve postoperative care compared with intermediate care units (IMCU) due to its dedication to operative care and an individualized duration of postoperative stay. The effects of transition from IMCU ...

    Abstract Background: A post-anaesthesia care unit (PACU) may improve postoperative care compared with intermediate care units (IMCU) due to its dedication to operative care and an individualized duration of postoperative stay. The effects of transition from IMCU to PACU for postoperative care following intermediate to high-risk noncardiac surgery on length of hospital stay, intensive care unit (ICU) utilization, and postoperative complications were investigated.
    Methods: This single-centre interrupted time series analysis included patients undergoing eleven different noncardiac surgical procedures associated with frequent postoperative admissions to an IMCU or PACU between January 2018 and March 2019 (IMCU episode) and between October 2019 and December 2020 (PACU episode). Primary outcome was hospital length of stay, secondary outcomes included postoperative complications and ICU admissions.
    Results: In total, 3300 patients were included. The hospital length of stay was lower following PACU admission compared to IMCU admission (IMCU 7.2 days [4.2-12.0] vs. PACU 6.0 days [3.6-9.1];
    Conclusions: The introduction of a PACU for postoperative care of patients undergoing intermediate to high-risk noncardiac surgery was associated with a reduction in the length of stay at the hospital, without increasing postoperative complications.
    Language English
    Publishing date 2024-01-17
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2662592-1
    ISSN 2077-0383
    ISSN 2077-0383
    DOI 10.3390/jcm13020534
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: First evidence of a biomarker-based dose-response relationship in chronic pain using physiological closed-loop spinal cord stimulation.

    Muller, Leah / Pope, Jason / Verrills, Paul / Petersen, Erika / Kallewaard, Jan Willem / Gould, Ian / Karantonis, Dean M

    Regional anesthesia and pain medicine

    2024  

    Abstract: Background and objectives: In spinal cord stimulation (SCS) therapy, electricity is the medication delivered to the spinal cord for pain relief. In contrast to conventional medication where dose is determined by desired therapeutic plasma concentration, ...

    Abstract Background and objectives: In spinal cord stimulation (SCS) therapy, electricity is the medication delivered to the spinal cord for pain relief. In contrast to conventional medication where dose is determined by desired therapeutic plasma concentration, there is lack of equivalent means of determining dose delivery in SCS. In open-loop (OL) SCS, due to the dynamic nature of the epidural space, the activating electric field delivered is inconsistent at the level of the dorsal columns. Recent Food and Drug Administration guidance suggests accurate and consistent therapy delivered using physiologic closed-loop control (PCLC) devices can minimize underdosage or overdosage and enhance medical care. PCLC-based evoked compound action potential (ECAP)-controlled technology provides the ability to prescribe a precise stimulation dose unique to each patient, continuously measure neural activation, and objectively inform SCS therapy optimization.
    Methods: Neurophysiological indicator metrics of therapy dose, usage above neural activation threshold, and accuracy of SCS therapy were assessed for relationship with pain reduction in over 600 SCS patients.
    Results: Significant relationships between objective metrics and pain relief across the patient population are shown, including first evidence for a dose-response relationship in SCS.
    Conclusions: Higher dose, more time over ECAP threshold, and higher accuracy are associated with better outcomes across patients. There is potential to optimize individual patient outcomes based on unique objective measurable electrophysiological inputs.
    Language English
    Publishing date 2024-03-19
    Publishing country England
    Document type Journal Article
    ZDB-ID 1425299-5
    ISSN 1532-8651 ; 1098-7339 ; 0146-521X
    ISSN (online) 1532-8651
    ISSN 1098-7339 ; 0146-521X
    DOI 10.1136/rapm-2024-105346
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Comment on 'Long-term effectiveness of epidural steroid injections after new episodes of low back pain in older adults' by Curatolo et al.

    Van Boxem, Koen / Kallewaard, Jan Willem / Peene, Laurens / Van Zundert, Jan

    European journal of pain (London, England)

    2023  Volume 27, Issue 5, Page(s) 651–652

    MeSH term(s) Humans ; Aged ; Low Back Pain/drug therapy ; Steroids/therapeutic use
    Chemical Substances Steroids
    Language English
    Publishing date 2023-02-20
    Publishing country England
    Document type Letter ; Comment
    ZDB-ID 1390424-3
    ISSN 1532-2149 ; 1090-3801
    ISSN (online) 1532-2149
    ISSN 1090-3801
    DOI 10.1002/ejp.2090
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Lead migration rate in dorsal root ganglion stimulation using lead anchoring techniques: A follow-up study.

    Chapman, Kenneth B / Yousef, Tariq / Amireh, Ahmad / Kallewaard, Jan Willem / van Helmond, Noud

    Pain practice : the official journal of World Institute of Pain

    2023  Volume 24, Issue 1, Page(s) 72–75

    Abstract: Background: Lead anchoring has previously been shown to reduce the rate of dorsal root ganglion stimulation (DRG-S) lead migration. The aim of this study was to assess longer-term follow-up and consistency of lead migration prevention with lead ... ...

    Abstract Background: Lead anchoring has previously been shown to reduce the rate of dorsal root ganglion stimulation (DRG-S) lead migration. The aim of this study was to assess longer-term follow-up and consistency of lead migration prevention with lead anchoring in a new cohort of patients.
    Methods: We performed a retrospective chart review from September 2017 to November 2022 of all patients who had DRG-S implants at our institute to identify the number of lead migrations that occurred over this period. The first cohort consisted of patients reported on in a previous publication (implanted from September 2017 through September 2020) subdivided into unanchored or anchored lead groups. The second cohort consisted of patients implanted during or after October 2020 who were not previously reported on for whom leads were anchored using silastic anchoring only.
    Results: At the November 2022 data cutoff, in the initial cohort, 8 migrations had occurred in unanchored leads over an average follow-up of 49 months, equating to a migration rate of 9.1% per lead. Patients with anchored leads in the initial cohort experienced 2 migrations over an average follow-up of 38 months (0.7% migration rate per lead). There were no new lead migrations in these groups over the extended follow-up reported here. The migration rate in the new cohort was similar, with 1 migration over an average follow-up of 13 months (0.5% migration rate per lead).
    Conclusion: These results underscore the necessity of anchor placement during DRG-S lead implantation to prevent lead migration.
    MeSH term(s) Humans ; Follow-Up Studies ; Spinal Cord Stimulation/methods ; Retrospective Studies ; Ganglia, Spinal/physiology
    Language English
    Publishing date 2023-08-22
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2151272-3
    ISSN 1533-2500 ; 1530-7085
    ISSN (online) 1533-2500
    ISSN 1530-7085
    DOI 10.1111/papr.13285
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  8. Article ; Online: Burst Spinal Cord Stimulation as Compared With L2 Dorsal Root Ganglion Stimulation in Pain Relief for Nonoperated Discogenic Low Back Pain: Analysis of Two Prospective Studies.

    Mons, Martijn R / Chapman, Kenneth B / Terwiel, Chris / Joosten, Elbert A / Kallewaard, Jan Willem

    Neuromodulation : journal of the International Neuromodulation Society

    2023  Volume 27, Issue 1, Page(s) 172–177

    Abstract: Introduction: Chronic discogenic low back pain (CD-LBP) is caused by degenerated disks marked by neural and vascular ingrowth. Spinal cord stimulation (SCS) has been shown to be effective for pain relief in patients who are not responsive to ... ...

    Abstract Introduction: Chronic discogenic low back pain (CD-LBP) is caused by degenerated disks marked by neural and vascular ingrowth. Spinal cord stimulation (SCS) has been shown to be effective for pain relief in patients who are not responsive to conventional treatments. Previously, the pain-relieving effect of two variations of SCS has been evaluated in CD-LBP: Burst SCS and L2 dorsal root ganglion stimulation (DRGS). The aim of this study is to compare the effectivity in pain relief and pain experience of Burst SCS with that of conventional L2 DRGS in patients with CD-LBP.
    Materials and methods: Subjects were implanted with either Burst SCS (n = 14) or L2 DRGS with conventional stimulation (n = 15). Patients completed the numeric pain rating score (NRS) for back pain and Oswestry disability index (ODI) and EuroQoL 5D (EQ-5D) questionnaires at baseline, and at three, six, and 12 months after implantation. Data were compared between time points and between groups.
    Results: Both Burst SCS and L2 DRGS significantly decreased NRS, ODI, and EQ-5D scores as compared with baseline. L2 DRGS resulted in significantly lower NRS scores at 12 months and significantly increased EQ-5D scores at six and 12 months.
    Conclusions: Both L2 DRGS and Burst SCS resulted in reduction of pain and disability, and increased quality of life in patients with CD-LBP. L2 DRGS provided significantly increased pain relief and improvement in quality of life when compared with Burst SCS.
    Clinical trial registration: The clinical trial registration numbers for the study are NCT03958604 and NL54405.091.15.
    MeSH term(s) Humans ; Low Back Pain/therapy ; Spinal Cord Stimulation/methods ; Prospective Studies ; Ganglia, Spinal/physiology ; Quality of Life ; Treatment Outcome
    Language English
    Publishing date 2023-05-16
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1500372-3
    ISSN 1525-1403 ; 1094-7159
    ISSN (online) 1525-1403
    ISSN 1094-7159
    DOI 10.1016/j.neurom.2023.04.464
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  9. Article ; Online: Percutaneous radiofrequency treatment of the gasserian ganglion for trigeminal neuralgia complicated by trochlear nerve palsy: a case report.

    Smulders, Pascal SH / Terheggen, Michel Amb / Geurts, José W / Kallewaard, Jan Willem

    Regional anesthesia and pain medicine

    2021  Volume 46, Issue 11, Page(s) 1002–1005

    Abstract: Background: Trigeminal neuralgia (TN) has the highest incidence of disorders causing facial pain. TN is provoked by benign stimuli, like shaving, leading to severe, short-lasting pain. Patients are initially treated using antiepileptic drugs; however, ... ...

    Abstract Background: Trigeminal neuralgia (TN) has the highest incidence of disorders causing facial pain. TN is provoked by benign stimuli, like shaving, leading to severe, short-lasting pain. Patients are initially treated using antiepileptic drugs; however, multiple invasive options are available when conservative treatment proves insufficient. Percutaneous radiofrequency treatment of the trigeminal, or gasserian, ganglion (RF-G) is a procedure regularly used in refractory patients with comorbidities. RF-G involves complex needle maneuvering to perform selective radiofrequency heat treatment of the affected divisions. We present a unique case of cranial nerve 4 (CN4) paralysis after RF-G.
    Case presentation: A male patient in his 60s presented with sharp left-sided facial pain and was diagnosed with TN, attributed to the maxillary and mandibular divisions. MRI showed a vascular loop of the anterior inferior cerebellar artery without interference of the trigeminal complex. The patient opted for RF-G after inadequate conservative therapy. The procedure was performed by an experienced pain physician and guided by live fluoroscopy. The patient was discharged without problems but examined the following day for double vision. Postprocedural MRI showed enhanced signaling between the trigeminal complex and the brainstem. Palsy of CN4 was identified by a neurologist, and spontaneous recovery followed 5 months after the procedure.
    Conclusions: Mention of postprocedural diplopia in guidelines is brief, and the exact incidence remains unknown. Different mechanisms for cranial nerve (CN) palsy have been postulated: incorrect technique, anatomical variations, and secondary heat injury. We observed postprocedural hemorrhage and hypothesized that bleeding might be a contributing factor in injury of CNs after RF-G.
    MeSH term(s) Fluoroscopy ; Humans ; Male ; Pain ; Treatment Outcome ; Trigeminal Ganglion ; Trigeminal Neuralgia/diagnostic imaging ; Trigeminal Neuralgia/surgery ; Trochlear Nerve Diseases
    Language English
    Publishing date 2021-05-26
    Publishing country England
    Document type Case Reports ; Journal Article
    ZDB-ID 1425299-5
    ISSN 1532-8651 ; 1098-7339 ; 0146-521X
    ISSN (online) 1532-8651
    ISSN 1098-7339 ; 0146-521X
    DOI 10.1136/rapm-2020-102285
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: Evaluating value mediation in patients with chronic low-back pain using virtual reality: contributions for empirical research in Value Sensitive Design.

    Smits, Merlijn / van Goor, Harry / Kallewaard, Jan-Willem / Verbeek, Peter-Paul / Ludden, Geke D S

    Health and technology

    2022  Volume 12, Issue 4, Page(s) 765–778

    Abstract: Value Sensitive Design (VSD) is the most well-known method to consider values in design. It consists of three iterative phases of investigation: conceptual, empirical, and technical. Although the approach is promising, the role of empirical research ... ...

    Abstract Value Sensitive Design (VSD) is the most well-known method to consider values in design. It consists of three iterative phases of investigation: conceptual, empirical, and technical. Although the approach is promising, the role of empirical research remains unclear. We address two opportunities for extending the role of empirical research in VSD. First, we argue that empirical research enables us to identify values in context. Second, we explain that empirical research enables us to anticipate how technology mediates the values of users. We make our point by means of an empirical study in a real-life controlled experimental context into the value mediation of virtual reality (VR) in patients with chronic low-back pain. Using value-oriented semi-structured interviews with twenty patients, we first analyze what values these patients consider important, and how the values are experienced. The second set of interviews held after all patients used VR four weeks at home, aims to provide insight into value changes as mediated by VR. We end the article by a comparison of our empirical results with previous, often speculative, literature into values in VR. We show that empirical research benefits the VSD process by providing in-depth insight into the effects of context and technology on values and the ability to translate these insights into recommendations for more responsible design and implementation of the technology.
    Supplementary information: The online version contains supplementary material available at 10.1007/s12553-022-00671-w.
    Language English
    Publishing date 2022-04-29
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2581463-1
    ISSN 2190-7196 ; 2190-7188
    ISSN (online) 2190-7196
    ISSN 2190-7188
    DOI 10.1007/s12553-022-00671-w
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