Ridvan Isik

Dr. Ridvan Isik

orcid

Research Focus & Metrics

Academic Career Length

9Years (2018-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
11 December 2018 in Topics in Stroke Rehabilitation
Verified
Journal Article
Closed access
YAYeşim Akkoç
Yeşim Akkoç
ABAyşe Nur Bardak
Ayşe Nur Bardak
MEMurat Ersöz
Murat Ersöz
BYBilge Yılmaz
Bilge Yılmaz
NYNecmettin Yıldız
Necmettin Yıldız
ÖŞÖzlem Şatır
Özlem Şatır
Background: Review of the literature clearly reveals that little is known about the association between functional and mental status, and Lower Urinary Tract Dysfunction (LUTD) in patients with stroke. Objective: The aim of this study was to assess functional and mental status in stroke patients and to identify possible associations with the prevalence, severity and bother of LUTD. Material and methods: This study was designed as a cross-sectional study and included 260 stroke patients enrolled from six different hospitals in Turkey. The patients were questioned using the Danish Prostatic Symptom Score (DAN-PSS) Questionnaire to evaluate LUTD, and evaluated using the Modified Barthel Index (MBI), Incontinence Quality of Life Questionnaire (I-QoL), and the Mini Mental State Examination (MMSE). Results: At least one LUTD finding was reported in 243 (93.5%) patients; the most commonly encountered complaint in these patients was nocturia (75.8%). The mean MBI, MMSE, and I-QoL scores were found to be significantly lower in LUTD (+) patients compared to LUTD (−) patients (p = 0.000, p = 0.005, and p < 0.01, respectively). Similarly all parameters (MBI, MMSE, and I-QoL scores) assessed were found to be significantly lower for patients with urinary incontinence than those without incontinence (p = 0.000, p = 0.000, and p < 0.01, respectively). Conclusion: LUTD is a common problem in patients with stroke. LUTD is associated with poorer cognitive and functional status and the quality of life in these patients. We, therefore, suggest that bladder dysfunction should not be overlooked during rehabilitation of stroke patients.

11 August 2023 in Frontiers in Bioscience-Landmark
Verified
Journal Article
Open access
PDF file
FEFerhat Ege
Ferhat Ege
RIRidvan Isik
Ridvan Isik
Background: This study was carried out to compare the levels of inflammatory markers in the complete blood count before and after they began receiving duloxetine in patients with fibromyalgia syndrome (FMS). Methods: The patient and control groups were composed of 40 patients diagnosed with FMS in accordance with the 2016 American College of Rheumatology (ACR) criteria and 40 healthy volunteers, respectively. The data collection tools comprised the sociodemographic information form, the fibromyalgia impact questionnaire (FIQ), and the sleep hygiene index (SHI), which were used to assess patients’ sociodemographic characteristics, FMS disease activity, and sleep quality, respectively. The inflammatory markers of the patient group were assessed by complete blood count before and after the duloxetine treatment and compared with those of the control group. Results: The white blood cell (WBC), neutrophil, and lymphocyte counts were significantly higher in the patient group than in the control group (p < 0.001, p = 0.036 and p = 0.004, respectively). Moreover, platelet distribution width (PDW) was significantly lower, whereas mean platelet volume (MPV) was significantly higher in the patient group than in the control group (p < 0.001 for both cases). In addition to patients’ platelet-to-lymphocyte ratio (PLR) values, C-reactive protein (CRP) levels, and white blood cell (WBC) counts decreasing but not significantly (p = 0.083, p = 0.068, and p = 0.065, respectively), their neutrophil-to-lymphocyte ratio (NLR), hemoglobin (Hgb), and hematocrit (Hct) values declined substantially after commencing duloxetine treatment (p = 0.001, p = 0.008, and p = 0.001, respectively). Conclusions: The significant reduction in NLR, Hgb, and Hct levels following duloxetine treatment may indicate that these parameters can be utilized as biomarkers in determining the efficacy of treatment and in the follow-up of the treatment in FMS patients.

24 December 2021
Verified
Book Chapter
Open access
PDF file
RIRidvan Isik
Ridvan Isik
FEFerhat Ege
Ferhat Ege
Sjögren’s syndrome (SS) is a chronic, autoimmune, inflammatory disease characterized by lymphocytic infiltration, destruction and dysfunction of the exocrine glands. Sjögren’s syndrome can be described as primary or secondary, depending on whether it occurs alone or in association with other systemic autoimmune diseases. Systemic manifestations of SS involve the musculoskeletal system. SS can be seen in association with both joint and muscle manifestations, including arthralgia and arthritis, as well as myopathy, which is usually asymptomatic. Besides, it may include bone metabolic disorders, fatigue and fibromyalgia. The diagnosis of Sjögren’s syndrome is based on characteristic clinical signs and symptoms. The etiology and pathogenesis of SS is elusive and has not yet been clarified. There is no curative treatment for SS, thus the aim in the treatment of SS is to alleviate the symptoms.

1 August 2023 in Turkish Journal of Osteoporosis
Verified
Journal Article
Closed access
RIRidvan Isik
Ridvan Isik
ŞAŞahin Azizov
Şahin Azizov
SSSavas Sencan
Savas Sencan
OGOsman Gündüz
Osman Gündüz

17 March 2026 in Journal of Clinical Medicine
Verified
Journal Article
Open access
PDF file
RIRidvan Isik
Ridvan Isik
MSMuhammed Zahid Sahin
Muhammed Zahid Sahin
EUEmre Uzun
Emre Uzun
FEferhat ege
ferhat ege
KNKemal Nas
Kemal Nas
Background/Objectives: Sacroiliac joint (SIJ) dysfunction is a common yet frequently underdiagnosed cause of chronic low back pain. This study aimed to compare the clinical effectiveness of ultrasound-guided corticosteroid and ozone injections in patients with chronic low back pain due to SIJ dysfunction. Methods: This comparative clinical study included 64 patients with chronic sacroiliac joint (SIJ) dysfunction who received ultrasound-guided SIJ injections with either corticosteroid (n = 31) or ozone (n = 33). Participants had a mean age of 45.0 ± 7.7 years, and the sex distribution was 42/22 (female/male). Pain intensity was assessed using the Numeric Rating Scale (NRS), disability using the Oswestry Disability Index (ODI), and quality of life using the Short Form-12 Physical (PCS) and Mental (MCS) Component Summary scores. Outcomes were evaluated at baseline, 3 months, and 6 months. Longitudinal changes were analyzed using two-way repeated-measures ANOVA (group × time) with Bonferroni-adjusted post hoc comparisons. Effect sizes were calculated using Cohen’s d. Normality and homoscedasticity were assessed (Shapiro–Wilk and Levene tests), and baseline comparisons were performed using appropriate parametric or non-parametric tests. Results: Both treatments significantly improved pain, disability, and quality of life at 3 months (p < 0.01). However, improvements were significantly greater and more durable in the ozone group across all outcomes at both 3 and 6 months (p < 0.01). At 6 months, between-group differences favored ozone for NRS (mean difference −2.81; Cohen’s d = −2.36), ODI (−6.05; d = −1.46), SF-12 PCS (+4.24; d = 1.24), and SF-12 MCS (+4.22; d = 0.83). A ≥50% pain reduction was achieved at 3 months in 97.0% of ozone-treated patients versus 45.2% of corticosteroid-treated patients (p < 0.01) and persisted at 6 months in 18.2% and 0% of patients, respectively (p < 0.05). The magnitude of improvement in the ozone group exceeded commonly reported Minimal Clinically Important Difference (MCID) thresholds for chronic low back pain outcomes, supporting clinical relevance. Conclusions: Ultrasound-guided ozone injection provided greater and more durable improvements in pain relief, functional status, and quality of life compared with corticosteroid injection in patients with SIJ dysfunction.

27 July 2026 in Interventional Pain Medicine
Verified
Journal Article
Open access
MEMurat Erten
Murat Erten
OOOzge Onurmen-Zeyrek
Ozge Onurmen-Zeyrek
RIRidvan Isik
Ridvan Isik
TDTuran Dogan
Turan Dogan
KNKemal Nas
Kemal Nas