scholarly journals Pulsed Radiofrequency Treatment for Chronic Post-Surgical Orchialgia: A Double-Blind, Sham-Controlled, Randomized Trial: ThreeMonth Results

2018 ◽  
Vol 1 (21;1) ◽  
pp. 199-205 ◽  
Author(s):  
Diab Fuad Hetta

Background: Chronic post-surgical pain in the groin region represents a challenge for the managing physician and is a burden on the quality of life of the patient. None of the existing interventions or medical treatment is satisfactory. Objectives: We aim to evaluate the analgesic efficacy of pulsed radiofrequency (PRF) applied to the ilioinguinal nerve and the genital branch of the genitofemoral nerve for patients suffering from chronic post-surgical orchialgia. Study Design: A prospective randomized, controlled clinical trial. Settings: An interventional pain unit in a tertiary center at a university hospital in Egypt. Methods: Seventy patients complaining of chronic post-surgical orchialgia were randomized into 2 groups: PRF group (n = 35), received pulsed radiofrequency on the ilioinguinal nerve and genital branch of the genitofemoral nerve, or sham group (n = 35). The percentage of patients that showed > 50 % reduction of their visual analog scale (VAS) pain score as well as the percentage of patients that did not require additional analgesic drugs was assessed. The VAS pain score and the global perceived effect (GPE) were reported during the 3-month follow-up period. Results: The percentage of patients that showed > 50% reduction of their VAS pain score was 80% (24/30) in the PRF group versus 23.33% (7/30) in the sham group. The percentage of patients that did not require analgesic drugs was 50% (15/30) in the PRF group versus 3.3% (1/30) in the sham group. There was a significant reduction of the mean post-procedural VAS pain score at 2, 4, 6, 8, and 12 weeks (P = 0.001) in the PRF group in comparison to the sham group. Likewise, there was a significant improvement of the GPE in the PRF group in comparison to the sham group (P = 0.00). Limitations: The study’s follow-up period was limited to 3 months only. Conclusions: For patients suffering from chronic post-surgical orchialgia, PRF applied to the ilioinguinal nerve and the genital branch of the genitofemoral nerve is an effective treatment modality. It provides long-lasting pain relief and decreases the demand for pain medications. Key words: Orchialgia, groin pain, radiofrequency, ilioinguinal nerve, genitofemoral nerve

2020 ◽  
Vol 1;23 (1;1) ◽  
pp. 25-35
Author(s):  
Diab Fuad Hetta

Background: Pharmacologic treatment is not successful in all cases of postmastectomy pain syndrome (PMPS). Some patients continue suffering pain while taking their medications, and others cannot tolerate the side effects of antineuropathic analgesics. Radiofrequency technology has provided promising results in the management of chronic neuropathic pain. Objectives: Considering that affection of intercostobrachial nerves are the main reason behind PMPS, we aimed to evaluate and compare the analgesic efficacy of pulsed radiofrequency (PRF) when delivered either on thoracic dorsal root ganglion (DRG) of intercostobrachial nerves (thoracic DRG 2, 3, and 4) or their corresponding thoracic paravertebral nerves (PVNs). Study Design: Prospective randomized-controlled clinical trial. Settings: Interventional pain unit, tertiary center, university hospital. Methods: Sixty-four patients complaining of PMPS were randomized to either group DRG (n = 32) that received PRF on thoracic DRG, or group PVN (n = 32) that received PRF on thoracic PVN. The outcome variables were that the patients showed > 50% reduction in their visual analog scale (VAS) pain score; the VAS pain score and global perceived effect (GPE) was evaluated during a 6-month follow-up period. Results: The percentage of patients who showed > 50% reduction of their VAS pain score was significantly higher in group DRG compared with group PVN, assessed at 4 and 6 months postprocedure (23/29:79.3% vs. 13/29:44.8%; P = 0.007) and (22/29:75.9% vs. 7/29:24.1%; P < 0.001), respectively, however, the 2 groups did not significantly differ at 1, 2, and 3 months postprocedure (DRG vs. PVN), (21/29: 72.4% vs. 21/29: 72.4%; P = 0.542), (24/29: 82.8% vs. 23/29: 79.9%; P = 0.778), and (24/29: 82.8% vs. 19/29: 65.5%; P = 0.136), respectively. There was a statistically significant reduction of VAS pain score at 4 and 6 months (DRG vs. PVN, mean ± standard deviation, 2.9 ± 2 vs. 3.9 ± 1.5; mean difference (95% confidence interval), 1 (0.06:1.9); P = 0.038; 3 ± 1.94 vs. 5.1 ± 1.5; mean difference (95% confidence interval), 1.9 (1:2.9); P < 0.001, respectively), however, the 2 groups did not significantly differ at 1, 2, and 3 months postprocedure. With regard to the patient’s satisfaction (i.e., GPE), assessed at 3 and 6 months postprocedure, there was a significantly higher satisfaction in group DRG compared with group PVN (median [interquartile range (IQR)], 6 (5:7) vs. 3 (2:4);P < 0.001), however, the patient’s satisfaction was similar between groups at 3 months postprocedure: median (IQR), 6 (4:7) vs. 6 (5:6); P = 0.327. Limitations: The study follow-up period is limited to 6 months only. Conclusions: PRF of both the thoracic DRG and the thoracic PVN are effective treatments for PMPS; however, PRF of DRG provided a better long-term analgesic effect. Nevertheless, given the inherent risk of performing thoracic foraminal interventions and the technical difficulty of targeting thoracic DRG, we recommend that PRF of DRG should be reserved for cases that failed to gain adequate response to PRF of thoracic PVN in conjunction with medical treatment. Key words: Postmastectomy pain syndrome, radiofrequency, dorsal root ganglion, paravertebral nerve


2020 ◽  
Vol 5;23 (9;5) ◽  
pp. E535-E540
Author(s):  
Chan Hong Park

Background: Discogenic pain is recognized as the most important and most common cause of low back pain (LBP). Intradiscal pulsed radiofrequency (ID-PRF) is used for the treatment of chronic discogenic pain. Objectives: We investigated the effects of the duration of percutaneous monopolar ID-PRF application on chronic discogenic LBP. Study Design: Retrospective study. Setting: Department of Anesthesiology and Pain Medicine, Neurosurgery at Wooridul Spine Hospital. Methods: Forty-five patients were included in this retrospective study. The patients were assigned into 2 groups according to the duration of the PRF procedure they underwent (7-minute group = 17 patients vs. 15-minute group = 28 patients). The main outcome measures tested were pain score, as determined by the Numeric Rating Scale (NRS-11) and the Oswestry Disability Index (ODI), at baseline, at 2-week, and 6-month follow-up visits. Success was defined as a reduction in NRS11 of 50% or more or an ODI reduction of 40% or more. Results: The mean posttreatment pain scores at 2 weeks and 6 months were significantly lower (P < 0.05) in both groups, but the differences between the groups were not significant. ODI scores were also significantly lower compared with the baseline, but the differences between the groups were not significant. At the 6-month follow-up, 12 patients (70.6%) in the 7-minute group and 20 patients (71.4%) in the 15-minute group reported more than 50% reduction in the pain score (P = 0.16), and there was no significant difference between the 2 groups in the number of patients with more than 40% reduction in ODI score (P = 0.23). Limitations: This study was performed with a small sample size and there was no control group. Additional well-designed and well-controlled studies that include parameters such as the stimulation duration, mode, and intensity of PRF are needed to fully assess the efficiency of ID-PRF. Conclusions: ID-PRF was shown to be effective for the treatment of discogenic LBP regardless of duration of ID-PRF application (7 vs. 15 minutes). Key words: Discogenic pain, pulsed, radio frequency, duration, pain, reduction


2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
L Chacko ◽  
A Martinez-Naharro ◽  
T Kotecha ◽  
R Martone ◽  
D Hutt ◽  
...  

Abstract Background Cardiac involvement is the main driver of outcome in ATTR amyloidosis. Advances in therapeutics hold potential in transforming the course of the disease but the impact on cardiac amyloid load is unknown. The aim of this study was to evaluate the impact of patisiran, a new double stranded RNA based gene silencing therapy and a stabilizer, diflunisal, on cardiac amyloid load as measured by CMR and T1 mapping, in patients with ATTR amyloidosis. Methods and results Thirty-two patients with hereditary cardiac amyloidosis were studied. Sixteen patients received treatment with patisiran, and sixteen control subjects did not receive any disease modifying treatment. Patients were assessed with echocardiogram, CMR, NT-proBNP and six-minute walk time measurements at baseline and at 1 year (Mean interval 11.45±3.08 months in treatment group, mean interval 12.82±5.06 months in the control group). CMR analysis comprised LV volumes, T1 mapping to measure the extracellular volume (ECV) occupied by amyloid, T2 mapping and late gadolinium enhancement imaging. At 1-year follow-up, there was a substantial reduction in cardiac amyloid burden, in keeping with cardiac amyloid regression in 45% of patients on treatment. Overall the treatment group showed a reduction in ECV at 1 year follow up compared to an increase in ECV at 1 year in the control group (−1.37%, 95% CI: −3.43 to 0.68% versus 5.02%, 95% CI: 2.86% to 7.18% respectively, p&lt;0.001). The treatment group also showed an improvement in change in 6MWT at 1 year follow up compared to 6MWT at 1 year in the control group (−8.12 meters, 95% CI: −50.8 to 34.6 meters in the treatment group versus −132.27 meters, 95% CI: −216 to −48.6 meters in the control group, p=0.002). The treatment group showed a reduction in BNP at 1 year follow up compared to an increase in the control group (−567.87, 95% CI: −1288.90 to 153.15 in the treatment group versus 2004, 95% CI: 12.82 to 3995.45 in the control group, p&lt;0.001). There was no significant difference from baseline and 1-year data between the control and treatment groups for the difference in echocardiographic parameters, native T1, T2. There was a significant reduction in the percentage of injected dose by 99Tc-DPD scintigraphy in treated patients at 1 year compared to baseline. Conclusions These findings provide the first compelling evidence of substantial cardiac amyloid regression in ATTR amyloidosis, as well as the potential for CMR to be used to track response in treated patients with ATTR cardiac amyloidosis. Combination therapy with transthyretin knock down and stabilizing agents may well be synergistic given enhanced stoichiometry of stabilizers in the face of much reduced plasma transthyretin concentration. Funding Acknowledgement Type of funding source: None


2020 ◽  
pp. 1-13
Author(s):  
Raed A. Alharbi ◽  
Saleh A. Aloyuni ◽  
Faizan Kashoo ◽  
Mohamed I. Waly ◽  
Harpreet Singh ◽  
...  

Abstract Objective: Infantile hemiplegia due to brain injury is associated with poor attention span, which critically affects the learning and acquisition of new skills, especially among children with left-sided infantile hemiplegia (LSIH). This study aimed to improve the selective visual attention (SVA) of children with LSIH through transcranial direct current stimulation (tDCS). Methods: A total of 15 children participated in this randomized, double-blinded, pilot study; of them, 10 experienced LSIH, and the remaining 5 were healthy age-matched controls. All the children performed the Computerized Stroop Color-Word Test (CSCWT) at baseline, during the 5th and 10th treatment sessions, and at follow-up. The experimental (n = 5) and control groups (n = 5) received tDCS, while the sham group (n = 5) received placebo tDCS. All three groups received cognitive training on alternate days, for 3 weeks, with the aim to improve SVA. Results: Two-way repeated measures analysis of variance (ANOVA) showed a statistically significant change in the mean scores of CSCWT between time points (baseline, 5th and 10th sessions, and follow-up) within-subject factor, group (experimental, sham) between-subject factor and interaction (time points X group) (p < 0.005). Furthermore, a one-way repeated measures ANOVA showed significant differences between time point (p < 0.005) for the experimental and control group but not the sham group. Conclusion: These pilot results suggest that future research should be conducted with adequate samples to enable conclusions to be drawn.


Cancers ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1963
Author(s):  
Daimantas Milonas ◽  
Tomas Ruzgas ◽  
Zilvinas Venclovas ◽  
Mindaugas Jievaltas ◽  
Steven Joniau

Objective: To assess the risk of cancer-specific mortality (CSM) and other-cause mortality (OCM) using post-operative International Society of Urological Pathology Grade Group (GG) model in patients after radical prostatectomy (RP). Patients and Methods: Overall 1921 consecutive men who underwent RP during 2001 to 2017 in a single tertiary center were included in the study. Multivariate competing risk regression analysis was used to identify significant predictors and quantify cumulative incidence of CSM and OCM. Time-depending area under the curve (AUC) depicted the performance of GG model on prediction of CSM. Results: Over a median follow-up of 7.9-year (IQR 4.4-11.7) after RP, 235 (12.2%) deaths were registered, and 52 (2.7%) of them were related to PCa. GG model showed high and stable performance (time-dependent AUC 0.88) on prediction of CSM. Cumulative 10-year CSM in GGs 1 to 5 was 0.9%, 2.3%, 7.6%, 14.7%, and 48.6%, respectively; 10-year OCM in GGs was 15.5%, 16.1%, 12.6%, 17.7% and 6.5%, respectively. The ratio between 10-year CSM/OCM in GGs 1 to 5 was 1:17, 1:7, 1:2, 1:1, and 7:1, respectively. Conclusions: Cancer-specific and other-cause mortality differed widely between GGs. Presented findings could aid in personalized clinical decision making for active treatment.


2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
N Kato ◽  
R Padang ◽  
C Pislaru ◽  
C.G Scott ◽  
V.T Nkomo ◽  
...  

Abstract Background Transmitral gradient (TMG) is highly dependent on hemodynamic state, leading to discordance between TMG and mitral valve area (MVA). The effect of heart rate (HR) and stroke volume (SV) on TMG among patients with mitral stenosis (MS) is poorly understood. Purposes We aimed to (1) develop a formula for projected TMG (proTMG) for assessment of MS severity under varying hemodynamics; (2) assess the prognostic value of proTMG in patients with MS. Methods All patients evaluated for suspected MS without ≥moderate other valve disorder at our tertiary center between 2001 and 2017 were analyzed. Projected TMG is the expected gradient under normal flow (SV 80–94 ml and HR 60–79 bpm), and was modeled based on the observed impact of HR and SV on TMG by multiple regression analysis. The data were randomly split (2:1) into training and testing sets. The improvement in agreement between MVA and proTMG was evaluated. Composite cardiac events including all-cause death and mitral valve interventions were compared according to TMG grade using TMG and proTMG. Severe and moderate MS were defined as MVA ≤1.5 cm2 and 1.5–2.0 cm2 respectively, by the continuity equation. MVA ≤1.0 cm2 was considered as very severe MS. Results Of 4973 patients with suspected MS (age 73±12 years, 33% male), severe MS was present in 437 (9%, including 98 with very severe MS) and moderate MS in 934 (19%). In 838 patients with normal HR and SV, very severe, severe and moderate MS corresponded to TMG ≥12 mmHg, ≥6 mmHg and 4–6 mmHg, respectively. In the training set (n=3315), the median [interquartile range] of HR and SV were 70 [61–80] bpm and 97 [83–113] mL in men (n=1120), and 72 [63–82] bpm and 84 [71–97] mL in women (n=2195), respectively. The impact of HR and SV on TMG for men and women were 0.07 and 0.08 mmHg per 1 bpm increase in HR (95% confidence interval [CI] 0.06–0.07 and 0.07–0.08), and 0.03 and 0.05 mmHg per 1 mL increase in SV (95% CI 0.03–0.03 and 0.04–0.05), respectively. Therefore, the final formula to calculate proTMG was: proTMG=TMG-0.07(HR-70)-0.03(SV-97) in men and proTMG=TMG-0.08(HR-72)-0.05(SV-84) in women. In the testing set (n=1658), the proTMG (kappa=0.63, 95% CI 0.60–0.66) had better agreement with MS severity by MVA than TMG (kappa=0.28, 95% CI 0.24–0.32). To explore the prevalence of patients reclassified using proTMG, in 98 with TMG ≥12 mmHg, proTMG remained ≥6 mmHg. Of 657 with TMG 6–12 mmHg, proTMG remained ≥6 mmHg in 356 (54%), and decreased to &lt;6 mmHg in 301 (46%). In patients with TMG 6–12 mmHg, proTMG ≥6 mmHg was associated with higher probability of cardiac events compared with &lt;6 mmHg during follow-up of 2.8±3.1 years (Figure). Conclusion We propose a novel concept of projected TMG defined as the expected transmitral gradient at normal HR and SV levels. This improved the diagnostic yield of Doppler TMG measurements for MS severity assessment and identified a low-risk subset of patients with elevated TMG due to high HR or SV. Funding Acknowledgement Type of funding source: None


Medicina ◽  
2021 ◽  
Vol 57 (2) ◽  
pp. 136
Author(s):  
Pavel Ryska ◽  
Jiri Jandura ◽  
Petr Hoffmann ◽  
Petr Dvorak ◽  
Blanka Klimova ◽  
...  

Background and objectives: For the treatment of chronic unilateral radicular syndrome, there are various methods including three minimally invasive computed tomography (CT)-guided methods, namely, pulsed radiofrequency (PRF), transforaminal oxygen ozone therapy (TFOOT), and transforaminal epidural steroid injection (TFESI). Despite this, it is still unclear which of these methods is the best in terms of pain reduction and disability improvement. Therefore, the purpose of this study was to evaluate the short and long-term effectiveness of these methods by measuring pain relief using the visual analogue scale (VAS) and improvement in disability (per the Oswestry disability index (ODI)) in patients with chronic unilateral radicular syndrome at L5 or S1 that do not respond to conservative treatment. Materials and Methods: After screening 692 patients, we enrolled 178 subjects, each of whom underwent one of the above CT-guided procedures. The PRF settings were as follows: pulse width = 20 ms, f = 2 Hz, U = 45 V, Z ˂ 500 Ω, and interval = 2 × 120 s. For TFOOT, an injection of 4–5 mL of an O2-O3 mixture (24 μg/mL) was administered. For the TFESI, 1 mL of a corticosteroid (betamethasone dipropionate), 3 mL of an anaesthetic (bupivacaine hydrochloride), and a 0.5 mL mixture of a non-ionic contrast agent (Iomeron 300) were administered. Pain intensity was assessed with a questionnaire. Results: The data from 178 patients (PRF, n = 57; TFOOT, n = 69; TFESI, n = 52) who submitted correctly completed questionnaires in the third month of the follow-up period were used for statistical analysis. The median pre-treatment visual analogue scale (VAS) score in all groups was six points. Immediately after treatment, the largest decrease in the median VAS score was observed in the TFESI group, with a score of 3.5 points (a decrease of 41.7%). In the PRF and TFOOT groups, the median VAS score decreased to 4 and 5 points (decreases of 33% and 16.7%, respectively). The difference in the early (immediately after) post-treatment VAS score between the TFESI and TFOOT groups was statistically significant (p = 0.0152). At the third and sixth months after treatment, the median VAS score was five points in all groups, without a statistically significant difference (p > 0.05). Additionally, there were no significant differences in the Oswestry disability index (ODI) values among the groups at any of the follow-up visits. Finally, there were no significant effects of age or body mass index (BMI) on both treatment outcomes (maximum absolute value of Spearman’s rank correlation coefficient = 0.193). Conclusions: Although the three methods are equally efficient in reducing pain over the entire follow-up, we observed that TFESI (a corticosteroid with a local anaesthetic) proved to be the most effective method for early post-treatment pain relief.


2020 ◽  
Vol 22 (Supplement_3) ◽  
pp. iii385-iii386
Author(s):  
Claudia Madrigal-Avila ◽  
Alfonso Perez-Bañuelos ◽  
Rafael Ruvalcaba-Sanchez ◽  
Lourdes Vega-Vega ◽  
Gabriela Escamilla-Asiain

Abstract BACKGROUND Central nervous system (CNS) tumors are the most common solid neoplasms in the pediatric age, they comprise about a quarter of all cancers at this age. Little is known about the specific epidemiology of this group in Mexico and there are no reports of results focused on the Performance Status of patients who are treated in a multidisciplinary setting. OBJECTIVE To describe the Performance Status of CNS pediatric patients after being treated with a multidisciplinary approach in a tertiary center. METHODS We report a retrospective chart review of all pediatric patients who presented to the Neuro-Oncology Clinic at Teleton Pediatric Oncology Hospital in Queretaro, Mexico, from December 2014 to January 2020. We analyzed age, gender, the extent of surgical resection and histopathology. Performance Status was assessed using ECOG and Karnofsky/Lansky scores during every patient’s last follow-up visit. RESULTS A total of 56 patients were treated, epidemiology and histopathology variants are similar to those described in the international literature. With a median follow-up of 33 months, 35 patients are alive (62.5%), 28 of them (74.2%) have an excellent Performance Status (ECOG score 0 or Lansky/Karnofsky ≥ 90), 5 (14.2%) scored ECOG 1–2 and only 4 (11.4%) scored ECOG 3–4. CONCLUSIONS A multidisciplinary approach with a focus on Performance Status and the potential for neurological recovery is essential in the management of pediatric patients with CNS tumors. Efforts should be aimed at reducing post-surgical morbidity and early rehabilitation to reintegrate patients into society in the long term.


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