Differences in calculated percentage improvement versus patient-reported percentage improvement in pain scores: a review of spinal cord stimulation trials

2021 ◽  
pp. rapm-2020-102238
Author(s):  
Jonathan M Hagedorn ◽  
Timothy R Deer ◽  
Nicholas C Canzanello ◽  
Stephen M Covington ◽  
Darrell R Schroeder ◽  
...  

IntroductionSpinal cord stimulation is frequently used for the treatment of intractable chronic pain conditions. Trialing of the spinal cord stimulator device is recommended to assess the patient’s response to neurostimulation before permanent implantation. The trial response is often assessed by Numeric Rating Scale changes and patient-reported percentage pain improvement. Using number rating scale changes between prespinal and postspinal cord stimulation trial, a calculated percentage pain improvement can be obtained. The aim of this study was to assess the difference between calculated and patient-reported percentage improvement in pain scale during spinal cord stimulation trials.MethodsThis study was a retrospective single center review of all spinal cord stimulation trials from January 1 2017 to July 1 2019. A total of 174 patients were included. The paired t-test was used to compare numeric pain scores obtained prestimulation versus poststimulation. The mean difference between methods (patient-reported minus calculated) was compared with zero using the 1-sample t-test. Lin’s concordance correlation coefficient was computed with a 95% CI, calculated using Fisher z-transformation; and a bootstrapping approach was used to compare the concordance correlation coefficient between groups. In all cases, two-tailed tests were used with p<0.05 considered statistically significant.ResultsBased on prestimulation and poststimulation numeric rating scale scores, the mean±SD calculated percentage improvement in pain scale was 54±28. The mean±SD patient-reported percentage improvement in pain scale was 59±25. The overall 95% limits of agreement for the two methods are −30% to +41%. The overall concordance correlation coefficient was 0.76 (95% CI 0.69 to 0.81).ConclusionAlthough the two methods are highly correlated, there is substantial lack of agreement between patient-reported and calculated percentage improvement in pain scale, suggesting that these measures should not be used interchangeably for spinal cord stimulator trial outcome assessment. This emphasizes the need for improved metrics to better measure patient response to neuromodulation therapies. Additionally, patient-reported percentage improvement in pain was found to be higher than calculated percentage improvement in pain, potentially highlighting the multidimensional experience of pain and the unpredictability of solely using Numeric Rating Scale scores to assess patient outcomes.

Neurosurgery ◽  
2011 ◽  
Vol 69 (6) ◽  
pp. 1181-1187 ◽  
Author(s):  
Kai-Ming G. Fu ◽  
Prashant Rhagavan ◽  
Christopher I. Shaffrey ◽  
Daniel R. Chernavvsky ◽  
Justin S. Smith

Abstract BACKGROUND Management approaches for adult scoliosis are primarily based on adults with idiopathic scoliosis and extrapolated to adults with degenerative scoliosis. However, the often substantially, but poorly defined, greater degenerative changes present in degenerative scoliosis impact the management of these patients. OBJECTIVE To assess the prevalence, severity, and impact of canal and foraminal stenosis in adults with degenerative scoliosis seeking operative treatment. METHODS A prospectively collected database of adult patients with deformity was reviewed for consecutive patients with degenerative scoliosis seeking surgical treatment, without prior corrective surgery. Patients completed the Oswestry Disability Index, SF-12, Scoliosis Research Society 22 questionnaire, and a pain numeric rating scale (0–10). Based on MRI or CT myelogram, the central canal and foraminae from T6 to S1 were graded for stenosis (normal or minimal/mild/moderate/severe). RESULTS Thirty-six patients were included (mean age, 68.9 years; range, 51–85). The mean leg pain numeric rating scale was 6.5, and the mean Oswestry Disability Index score was 53.2. At least 1 level of severe foraminal stenosis was identified in 97% of patients; 83% had maximum foraminal stenosis in the curve concavity. All but 1 patient reported significant radicular pain, including 78% with discrete and 19% with multiple radiculopathies. Of those with discrete radiculopathies, 76% had pain corresponding to areas of the most severe foraminal stenosis, and 24% had pain corresponding to areas of moderate stenosis. CONCLUSION Significant foraminal stenosis was prevalent in patients with degenerative scoliosis, and the distribution of leg pain corresponded to levels of moderate or severe foraminal stenosis. Failure to address symptomatic foraminal stenosis when surgically treating adult degenerative scoliosis may negatively impact clinical outcomes.


Neurosurgery ◽  
2009 ◽  
Vol 64 (1) ◽  
pp. 115-121 ◽  
Author(s):  
Jee-Soo Jang ◽  
Sang-Ho Lee ◽  
Jung Mok Kim ◽  
Jun-Hong Min ◽  
Kyung-Mi Han ◽  
...  

Abstract OBJECTIVE To analyze pre- and postoperative x-rays of sagittal spines and to review the surgical results of 21 patients with lumbar degenerative kyphosis whose spines were sagittally well compensated by compensatory mechanisms but who continued to suffer from intractable back pain METHODS We performed a retrospective review of 21 patients treated with combined anterior and posterior spinal arthrodesis. Inclusion criteria were: lumbar degenerative kyphosis patients with intractable back pain and whose spines were sagittally well compensated by a compensatory mechanism, defined as a C7 plumb line to the posterior aspect of the L5–S1 disc of less than 5 cm. Outcome variables included: radiographic measures of preoperative, postoperative, and follow-up films; clinical assessment using the mean Numeric Rating Scale, Oswestry Disability Index, and Patient Satisfaction Index; and a review of postoperative complications. RESULTS All patients were female (mean age, 64.5 years; age range, 50–74 years). The mean preoperative sagittal imbalance was 19.5 (± 17.6) mm, which improved to −15.8 (± 22.2) mm after surgery. Mean lumbar lordosis was 13.2 degrees (± 15.3) before surgery and increased to 38.1 degrees (± 14.4) at follow-up (P &lt; 0.0001). Mean thoracic kyphosis was 5.5 degrees (± 10.2) before surgery and increased to 18.9 degrees (± 12.4) at follow-up (P &lt; 0.0001). Mean sacral slopes were 12.9 degrees (± 11.1) before surgery and increased to 26.3 degrees (± 9.6) at follow-up (P &lt; 0.0001). The mean Numeric Rating Scale score improved from 7.8 (back pain) and 8.1 (leg pain) before surgery to 3.0 (back pain) and 2.6 (leg pain) after surgery (P &lt; 0.0001). The mean Oswestry Disability Index scores improved from 56.2% before surgery to 36.7% after surgery (P &lt; 0.0001). In 18 (85.5%) of 21 patients, satisfactory outcomes were demonstrated by the time of the last follow-up assessment. CONCLUSION This study shows that even lumbar degenerative kyphosis patients with spines that are sagittally well compensated by compensatory mechanisms may suffer from intractable back pain and that these patients can be treated effectively by the restoration of lumbar lordosis.


2019 ◽  
Vol 2 (1) ◽  
pp. 1-14
Author(s):  
Astrid Astrid ◽  
Memed Sena Setiawan

Apendicitis adalah peradangan dari apendiks vermiformis yang menyebabkan usus berhenti mengeluarkan sisa makanan yang tidak diserap oleh tubuh sehingga dilakukan Apendictomy dimana terjadi nyeri akut pada level severe. Tujuan penelitian ini untuk mengetahui pengaruh teknik relaksasi Guided Imagery Music terhadap intensitas nyeri post operasi apendicitis di ruang rawat inap bedah RSPAD Gatot Soebroto Ditkesad Jakarta. Desain penelitian menggunakan purposive sampling dengan rancangan random assignment pre test-post test with control group. Jumlah sampel adalah 36 orang (18 orang kelompok kontrol dan 18 orang kelompok intervensi). Nyeri diukur dengan menggunakan Numeric Rating Scale (NRS) dan Faces Pain Scale Resived (FPSR). Uji statistik menggunakan uji T test independen. Hasil uji menunjukkan ada pengaruh teknik relaksasi Guided Imagery Music terhadap intensitas nyeri pada klien post operasi Apendicitis. Perbedaan rata-rata intensitas nyeri pada kelompok kontrol sebesar 1,55 dan pada kelompok intervensi sebesar 3,17. Variabel confounding telah dilakukan uji normalitas didapatkan hasil tidak ada hubungan usia, jenis kelamin, koping, individu pendukung, lingkungan, pengalaman nyeri sebelumnya terhadap intensitas nyeri, ini dikarenakan klien tidak mampu mengalihkan perhatian dari rasa nyeri yang hebat post operasi apendicitis, sehingga hasil statistik nya tidak perlu dilakukan transformasi. Teknik relaksasi Guided Imagery Music dapat digunakan sebagai intervensi mandiri keperawatan untuk mengurangi intensitas nyeri klien post operasi apendicitis. Kata Kunci: Guided Imagery Music, Klien Post Operasi Apendicitis, Intensitas Nyeri


2019 ◽  
Vol 7 (1) ◽  
pp. 52
Author(s):  
Natya Ayu Paluwih ◽  
Riama Marlyn Sihombing ◽  
Kinanthi Lebdawicaksaputri

Post-operative pain is acute and subjective therefore the perceived pain intensity will be different. In one of the western Indonesia Hospitals in measuring the pain threshold using 2 tools namely Numeric Rating Scale and Wong Baker Face. Measurement of the pain intensity can be done with NRS and VAS scale. The objective of this research was to identify the difference of pain scale using the NRS and VAS scale in post-operative patients. The research method was descriptive quantitative using comparative approach. The study was conducted on 1 November 2017 – 12 December 2017.The population of the study are the post-operative patients at the In-Patient wards in a private hospital in Western Part of Indonesia. The samples were obtained using purposive sampling with n = 41. Research instrument consists of observation sheet using NRS and VAS scale. The results showed most respondents during the first eight hours using NRS scale had mild pain (80.5%); first 16 hours had light pain (63.4%); and had mild pain in the first 24 hours (85.4%). Using VAS scale, most of the respondents on the first eight hours has mild pain (87.8%); first 16 hours has mild pain (68.3%); and has mild pain in the first 24 hours (87.8%). The conclusion of this study is there is no difference in pain scale of post-operative patients using VAS scale and NRS scale. So, hospitals can also use the VAS scale to assess pain scale in post-operative patients.


2021 ◽  
pp. 215-222
Author(s):  
Tao Song

Background: Postherpetic neuralgia (PHN) is the final stage of varicella zoster infection and a severe refractory neuropathic pain. Hence preventing transition of herpes zoster-related pain to PHN is a very important therapeutic principle for patients at an early stage, especially for older patients.Both pulsed radiofrequency (PRF) and short-term spinal cord stimulation (stSCS) have been proven to be effective to relieve acute/subacute zoster-related pain. However, which treatment could achieve better analgesic effects remains unclear. Objectives: This study aimed to investigate the therapeutic efficacy and safety of PRF and stSCS in patients with acute/subacute zoster-related pain. Study Design: Prospective, randomized, double-blinded study. Setting: Department of Pain Medicine, the First Affiliated Hospital of China Medical University. Methods: Ninety-six patients with acute/subacute zoster-related pain were equally randomized into 2 groups: PRF group and stSCS group. Patients in the different groups were treated with high-voltage, long-duration PRF or stSCS. The therapeutic effects were evaluated using a Numeric Rating Scale (NRS-11) and the 36-Item Short Form Health Survey (SF-36) at different time points. The average dose of pregabalin (mg/d) administrated at different time points was also recorded. Results: The posttreatment NRS-11 scores in the 2 groups were significantly lower compared with baseline (P < 0.001). The NRS-11 scores in the stSCS group were significantly lower than those in the PRF group at 30 and 180 days after treatments (P < 0.05). The SF-36 scores of general health, social function, role-emotional, mental health, bodily pain, physical function, physical role, and vitality could be significantly improved at each time point after treatments in the 2 groups. Some SF-36 scores could be significantly improved at some time points in the stSCS group compared with the PRF group. The rescue drug (pregabalin) dosages were lower in the stSCS group than those in the PRF group at days 90 and 180 after treatments. There was no bleeding at the puncture site, infection, postoperative paresthesia, nerve injury, or any other serious adverse effects in either group. Limitations: Single-center study, relatively small number of patients. Conclusions: PRF and stSCS are both effective and safe therapeutic alternatives for patients with acute/subacute zoster-related pain, however, stSCS could achieve more pain relief and improvement of life quality compared with PRF. Key words: Pulsed radiofrequency, short-term spinal cord stimulation, zoster-related pain, Numeric Rating Scale, 36-Item Short Form Health Survey


2019 ◽  
Vol 7 (2) ◽  
pp. 92-99
Author(s):  
Yudhanarko Yudhanarko ◽  
Suwarman Suwarman ◽  
Ricky Aditya

Nyeri didefinisikan sebagai pengalaman sensorik dan emosional yang tidak menyenangkan terkait dengan kerusakan jaringan aktual atau potensial. Manajemen nyeri pada luka bakar merupakan bagian yang tidak terpisahkan dari terapi luka bakar. Nyeri pada luka bakar merupakan nyeri akut, penanganan yang tidak baik akan menyebabkan komplikasi, salah satunya nyeri kronik. Rumah Sakit Umum Pusat (RSUP) Dr. Hasan Sadikin Bandung telah membuat Standar Prosedur Operasional (SPO) manajemen nyeri yang berguna untuk meningkatkan kepatuhan dalam pelaksanaan manajemen nyeri. Penelitian ini bertujuan mengevaluasi kesesuaian teknik pengkajian, tindak lanjut dan evaluasi ulang nyeri pada pasien luka bakar dengan SPO manajemen nyeri. Penelitian menggunakan metode deskriptif observasional retrospektif terhadap 99 rekam medis pasien luka bakar yang memenuhi kriteria inklusi di RSUP Dr. Hasan Sadikin Bandung pada tahun 2018. Hasil penelitian didapatkankan bahwa pengkajian nyeri yang dilakukan sesuai dengan SPO menggunakan numeric rating scale atau Wong Baker faces pain scale ditemukan pada 99 pasien (100%). Tindak lanjut hasil pengkajian nyeri luka bakar yang dilakukan sesuai dengan SPO sebanyak 71 pasien (72%). Evaluasi ulang setelah tindak lanjut pengkajian nyeri yang sesuai SPO pada 93 pasien (94%). Simpulan, pengkajian nyeri di RSUP Dr. Hasan Sadikin Bandung sudah sesuai dengan SPO manajemen nyeri, namun tindak lanjut dan evaluasi ulang pada nyeri luka bakar belum sesuai dengan SPO manajemen nyeri.Evaluation of Compliance to Standard Operating Procedures for Pain Management in Patients with Burns in Dr. Hasan Sadikin General Hospital BandungPain is defined as an unpleasant sensory and emotional experience related to actual or potential tissue damage. Pain management for burns is an integral part of burn therapy. Pain in burns is an acute pain and poor management will lead to health complications including chronic pain. Dr. Hasan Sadikin General Hospital Bandung has made a standard operating procedure (SOP) for pain management to improve compliance to pain management standard. This study aimed to evaluate the compliance to the standards in assessment techniques, follow-up, and re-evaluation of pain in patients with burn according to the applicable pain management SOP. This was a retrospective descriptive observational study on 99 medical records of burn patients who met the inclusion criteria in Dr. Hasan Sadikin General Hospital Bandung in 2018. The results of the study revealed that the pain assessment for these patient was carried out according to the SOP which refers to the use of a numeric rating scale or Wong Baker face pain scale in 99 patients (100%). In the follow-up, 71 were performed according to the SOP (72%) while the re-evaluation was performed in compliance with the SOP in 93 patients (94%). In conclusion, pain assessment in Dr. Hasan Sadikin General Hospital Bandung is performed in accordance with SOP on pain management but not all patients receive follow-up and re-evaluation of burn pain in accordance with the SOP on pain management. 


RMD Open ◽  
2020 ◽  
Vol 6 (1) ◽  
pp. e000928 ◽  
Author(s):  
Dafna Gladman ◽  
Peter Nash ◽  
Hitoshi Goto ◽  
Julie A Birt ◽  
Chen-Yen Lin ◽  
...  

ObjectivesThis study assessed the psychometric properties of the fatigue numeric rating scale (NRS) and sought to establish values for clinically meaningful change (responder definition).MethodsUsing disease-specific clinician-reported and patient-reported data from two randomised clinical trials of patients with psoriatic arthritis (PsA), the fatigue NRS was evaluated for test–retest reliability, construct validity and responsiveness. A responder definition was also explored using anchor-based and distribution-based methods.ResultsTest–retest reliability analyses supported the reproducibility of the fatigue NRS in patients with PsA (intraclass correlation coefficient=0.829). Mean (SD) values at baseline and week 2 were 5.7 (2.2) and 5.7 (2.4), respectively. Supporting construct validity of the fatigue NRS, moderate-to-large correlations with other assessments measuring similar concepts as measured by Sackett’s conventions were demonstrated. Fatigue severity was reduced when the underlying disease activity was improved and reductions remained consistent at week 12 and 24. A 3-point improvement was identified as being optimal for demonstrating a level of clinically meaningful improvement in fatigue NRS after 12–24 weeks of treatment.ConclusionsFatigue NRS is a valid and responsive patient-reported outcome instrument for use in patients with PsA. The established psychometric properties from this study support the use of fatigue NRS in clinical trials and in routine clinical practice. Robust validation of reliability for use in routine clinical practice in treating patients with active PsA in less active disease states and other more diverse ethnic groups is needed.


2015 ◽  
Vol 85 (6) ◽  
pp. 1015-1020 ◽  
Author(s):  
Alberto Baldini ◽  
Alessandro Nota ◽  
Claudia Santariello ◽  
Valentina Assi ◽  
Fabiana Ballanti ◽  
...  

ABSTRACT Objective:  To investigate the influence of two different activation protocols on the timing and intensity of pain during rapid maxillary expansion (RME). Materials and Methods:  A total of 112 prepubertal patients (54 males and 58 females, mean age 11.00 ± 1.80 years) with constricted maxillary arches underwent RME with two different activation protocols (group 1: one activation/day; group 2: two activations/day). Patients were provided with a numeric rating scale (NRS) and the Faces Pain Scale (FPS) to correctly assess their daily pain. Results:  Subjects treated with RME at two activations/day reported statistically significantly greater amounts of pain than subjects treated with RME at one activation/day. Differences related to gender and skeletal maturity were found. Conclusion:  The choice of activation protocol influences the perceived pain during RME, and less daily expansion is correlated to less pain. Pain reported during RME could be influenced by skeletal maturity and gender of the subjects under treatment.


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