Oversewing the Staple Line: Does It Safe to Prevent Leakage?

Introduction: The staple line (SL) leak remains one of the most serious complications after laparoscopic sleeve gastrectomy (LSG). The present study aims to determine whether reinforcing the SL with sutures is effective in maintaining tissue integrity. Materials and Methods: LSG Specimens of 60 patients were ex vivo studied. The specimens were divided into three groups: In group 1, the entire SL was reinforced, while the upper half part of the SL was reinforced from fundus to antrum in group 2. The SL was not reinforced in group 3. Then, the pressure inside the sample was increased, and the bursting pressure location and pressure value during the bursting were recorded. Results: The bursting pressure was significantly higher in entire and half oversewed SL groups than the none reinforced group (group 1: 115 mmHg [95-170]; group 2: 95 mmHg [80-120]; group 3: 40 mmHg [22-60], respectively, [P < .001]). The most common site of bursting was in the middle ⅓ of SL (35, 53.8%), followed by the proximal ⅓ part of SL (18, 27.7%), and the distal ⅓ part of SL (12, 18.5%), respectively. The bursting site was significantly more frequent in the corpus than the other parts of the SL (P = .013). Conclusion: Reinforcing the SL with sutures preserves tissue integrity. Although bursting was most frequently observed in the corpus region ex vivo, the fact that almost all real-life leaks develop in the area close to the Angle of His. This situation suggests that strengthening the suture line with reinforcement alone will not be protective enough against leaks in the fundus line, and factors such as tissue ischemia may be considered.

A different way to diagnosis acute appendicitis: machine learning

<b><br>Indroduction:</b> Machine learning is a branch of artificial intelligence based on the idea that systems can learn from data, identify patterns, and make decisions with minimal human intervention.</br> <b><br>Aim:</b> Our aim is to predict acute appendicitis, which is the most common indication for emergency surgery, using machine learning algorithms with an easy and inexpensive method.</br> <b><br>Materials and methods:</b> Patients who were treated surgically with a prediagnosis of acute appendicitis in a single center between 2011 and 2021 were analyzed. Patients with right lower quadrant pain were selected. A total of 189 positive and 156 negative appendectomies were found. Gender and hemogram were used as features. Machine learning algorithms and data analysis were made in Python (3.7) programming language.</br> <b><br>Results:</b> Negative appendectomies were found in 62% (n = 97) of the women and in 38% (n = 59) of the men. Positive appendectomies were present in 38% (n = 72) of the women and 62% (n = 117) of the men. The accuracy in the test data was 82.7% in logistic regression, 68.9% in support vector machines, 78.1% in k-nearest neighbors, and 83.9% in neural networks. The accuracy in the voting classifier created with logistic regression, k-nearest neighbor, support vector machines, and artificial neural networks was 86.2%. In the voting classifier, the sensitivity was 83.7% and the specificity was 88.6%.</br> <b><br>Conclusions:</b> The results of our study show that machine learning is an effective method for diagnosing acute appendicitis. This study presents a practical, easy, fast, and inexpensive method to predict the diagnosis of acute appendicitis.</br>.

Coexisting of small bowel perforation and abdominal cocoon syndrome: A case report

Abdominal cocoon syndrome (ACS) is a rare situation and has an unknown etiology. Patients are characterized by the development of intraabdominal fibrotic tissue surrounding the small intestine as a result of chronic inflammation of the peritoneum. Small bowel perforations due to foreign bodies are not frequent in clinical practice. The coexistence of these two rare situations are extremely uncommon. In this article, the radiological findings and treatment process of the patient who presented with acute abdomen syndrome findings and the association of these two rare conditions are presented.

Ultrasound vs. fluoroscopic guidance in genicular nerve radiofrequency thermocoagulation for chronic knee pain: which one is the future?

OBJECTIVE

Fluoroscopic guiding is commonly utilized for interventional pain management procedures. However, ultrasonography has started to be used more widely in interventional pain procedures. It has become even more popular with its advantages. The clinician who performs the pain procedure and the patient are not exposed to radiation. Vascular structures can be directly visualized. Ultrasonography is more accessible and portable than fluoroscopy. For all these reasons, its use will increase. So, in this study, we aimed to compare the efficacy of the genicular nerve radiofrequency thermocoagulation application under ultrasound guidance and fluoroscopy guidance.

PATIENTS AND METHODS

Patients with stage 2 and 3 osteoarthritis, according to the Kellgren-Lawrence classification, were included in our study (n=180). Seventy percent of patients were women. Sixty patients received medical treatment only. Genicular nerve radiofrequency thermocoagulation was performed with fluoroscopy in sixty patients and with ultrasonography guidance in sixty other patients. Visual Analogue Scale at 1 month (VAS1) and Western Ontario and McMaster Universities Arthritis (WOMAC1) were recorded before the procedure, while VAS2 and WOMAC2 were recorded at 3 months.

RESULTS

In the ultrasound and fluoroscopy group, a statistically significant difference was found between VAS1 and VAS2, WOMAC1 and WOMAC2 (p<0.05). VAS1 of the patients in the fluoroscopy group was 6.65±0.93, and it was 5.88±0.92 in the ultrasonography group, which was similar (p<0.0001). VAS2 was 2.26±1.16 in the ultrasonography group and 3.83±1.66 in the fluoroscopy group (p<0.0001). The reduction rate in pain severity in patients undergoing the procedure under ultrasonography guidance was more marked than that in the fluoroscopy group (p<0.0001).

CONCLUSIONS

For the radiofrequency thermocoagulation of the genicular nerve, both imaging approaches are available. Ultrasonography guidance appears to be better than fluoroscopy guidance in this technique because of the lower radiation dose and the ability to detect the target location and neighboring tissues more precisely under ultrasonography guidance.

Reducing the environmental impact of surgery on a global scale: systematic review and co-prioritization with healthcare workers in 132 countries

BACKGROUND

Healthcare cannot achieve net-zero carbon without addressing operating theatres. The aim of this study was to prioritize feasible interventions to reduce the environmental impact of operating theatres.

METHODS

This study adopted a four-phase Delphi consensus co-prioritization methodology. In phase 1, a systematic review of published interventions and global consultation of perioperative healthcare professionals were used to longlist interventions. In phase 2, iterative thematic analysis consolidated comparable interventions into a shortlist. In phase 3, the shortlist was co-prioritized based on patient and clinician views on acceptability, feasibility, and safety. In phase 4, ranked lists of interventions were presented by their relevance to high-income countries and low-middle-income countries.

RESULTS

In phase 1, 43 interventions were identified, which had low uptake in practice according to 3042 professionals globally. In phase 2, a shortlist of 15 intervention domains was generated. In phase 3, interventions were deemed acceptable for more than 90 per cent of patients except for reducing general anaesthesia (84 per cent) and re-sterilization of 'single-use' consumables (86 per cent). In phase 4, the top three shortlisted interventions for high-income countries were: introducing recycling; reducing use of anaesthetic gases; and appropriate clinical waste processing. In phase 4, the top three shortlisted interventions for low-middle-income countries were: introducing reusable surgical devices; reducing use of consumables; and reducing the use of general anaesthesia.

CONCLUSION

This is a step toward environmentally sustainable operating environments with actionable interventions applicable to both high- and low-middle-income countries.

FAR Ratio as Prognostic Biomarker in AMI

Acute mesenteric ischemia (AMI) is a vascular emergency resulting from decreased blood flow caused by the occlusion of the mesenteric vessels, hypoperfusion, or vasospasm. This study aimed to investigate the prognostic value of the fibrinogen-to-albumin (FAR) ratio in patients with acute mesenteric ischemia. A total of 91 patients were enrolled in the study. Patients' demographics such as age and gender, pre- and postoperative hemoglobin, CRP, white blood cell (WBC), neutrophils, preoperative lymphocyte, alanine transaminase (ALT), aspartate transaminase (AST), thrombocytes, and postoperative D-dimer values were recorded. In addition, pre- and postoperative fibrinogen and albumin levels were recorded, and FAR was calculated. Patients were divided into two groups, survivors and non-survivors. The mean pre- and postoperative fibrinogen levels were statistically significantly higher in the non-survivor group than in the survivor group (p < 0.001). The mean pre- and postoperative albumin levels were significantly lower in the non-survivors than in the survivors (p = 0.059, p < 0.001; respectively). The mean pre- and postoperative FAR ratios were considerably higher in the non-survivor than in the survivor groups (p < 0.001). The change between pre- and postoperative fibrinogen, albumin, and FAR values was statistically significant between the non-survivors and the survivors (for all, p < 0.05). The preoperative and postoperative fibrinogen levels were significantly lower, and albumin levels were significantly higher in the survivor compared to the non-survivor patients with AMI. Furthermore, the preoperative and postoperative FAR ratio was significantly higher in the non-survivors. The FAR ratio may be a valuable prognostic biomarker for patients with AMI.

AB0355 THE DIFFERENCES BETWEEN THE FIRST PREFERRED BIOLOGICAL DMARD AND THE DRUG SURVIVAL IN GERIATRIC AND YOUNGER ADULT POPULATION WITH RHEUMATOID ARTHRITIS AND PSORIATIC ARTHRITIS: TREASURE REAL-LIFE DATA

Background

Inflammatory musculoskeletal diseases are frequent in the elderly population, and this number is expected to increase significantly near future. The exclusion of older adults from the studies due to their age and comorbidities causes insufficient data about this population. Insufficient data cause clinicians to have difficulties using and selecting biological therapy in the elderly patient group. In real life, physicians’ approaches to the selection and use of biological disease modifying anti-rheumatic drugs (DMARDs) in the geriatric population with rheumatoid arthritis (RA) and psoriatic arthritis (PsA) have not been well studied.

Objectives

To compare the clinicians’ first choice of biological DMARDs in elderly and younger RA and PsA patients and investigate the drug survival of first biological DMARDs in both populations.

Methods

The traditional chronological age for the human to be classified in the geriatric population is ≥ 65 years (1). The TReasure web-based registry, created in 2017, is a multicenter observational cohort established to collect data on RA and spondyloarthritis (SpA) patients from the participating 17 rheumatology centers in different regions of Turkey. Physicians’ first choice biological and targeted synthetic DMARDs in younger and elderly patients with RA and PsA was evaluated using the descriptive statistical method. The survival of the first b/tsDMARDs was assessed using the Kaplan-Meier method.

Results

3136 RA and 738 PsA patients were evaluated. 12% of 3136 patients with RA were in the geriatric population. In patients with RA, the first choice of biologic DMARDs was adalimumab (20.6%), followed by etanercept (19.9%), and tofacitinib (13.6%) in patients < 65 years of age, while rituximab (24%) was the first choice in patients ≥ 65 years, tofacitinib (20.9%) in the second place and etanercept (13%) in the third. Of 738 PsA patients, 3% were over 65 years. Adalimumab (41.1%) was the first choice of <65 years of age, etanercept (17.6%) was the second choice, and infliximab (15.5%) was the third choice, while adalimumab (28.6%) was the first choice in patients ≥ 65 years followed by etanercept (17.9%) and certolizumab (17.9%). In RA group, drug survival was significantly higher in patients ≥ 65 years (estimated median drug survival; <65 age: 37.5 (34.1-41.1) months vs ≥65 age: 53.5 (24.9-82.2) months; log-rank p=0,016) (Figure 1). In PsA group, drug survival was significantly higher in patients < 65 years (estimated median drug survival; <65 age: 31.2 (26.4-36.1) months vs ≥65 age: 9.1 (0.4-17.7) months; log-rank p<0,001) (Figure 1).

Figure 1.

Comparison of first bDMARD retention rates between <65 years and ≥ 65 years. A: In rheumatoid arthritis patients, B: In psoriatic arthritis patients

Conclusion

With these findings, it is thought that in Turkey, the limited socioeconomic support in the geriatric patients has led physicians to prescribe treatments such as rituximab, which are administered in the hospital under the supervision of a physician, are relatively preferred in malignancies, and are considered to be relatively less risky in terms of tuberculosis. Adalimumab and etanercept were chosen in the first two lines in both geriatric and young populations in the patient group with PsA. While the drug survival was significantly higher in patients with RA geriatric age group than the younger group, in PsA in which tumor necrosis factor-alpha (TNF-α) inhibitors were chosen as initial therapy in both age groups was lower in the geriatric population.

References

[1]Kotsani et al. JCM 2021. https://doi.org/10.3390/jcm10143018

Disclosure of Interests

None declared

AB0774 Paradoxical reactions, especially psoriasis in rheumatology patients receiving biologic therapy from the Treasure database: a 5-year follow-up study

Background

Biologic agents have altered our ability to treat chronic inflammatory diseases effectively. Although paradoxical reactions (PRs) were initially described with TNF-α inhibitors, they have been reported with newly developed biologic agents or classes too (1). Due to the potential consequences of PRs, it is critical to identify and treat these drug class side effects as soon as possible.

Objectives

The aim of this study was to characterize PRs, especially psoriasis, in a large cohort of patients treated with biologic agents and to investigate their clinical implications.

Methods

TReasure database, which was launched in 2017, is a web-based prospective observational cohort comprised of patients with rheumatoid arthritis (RA) and spondyloarthritis (SpA) from 17 centers located throughout Turkey. Characteristics of patients with PRs and clinicians’ treatment approaches and outcomes were evaluated using descriptive statistics.

Results

3147 RA and 6071 SpA patients were evaluated. 139 (1.5%) patients (40 (28.8%) with RA and 99 (71.29%) with SpA) developed a PRs (Table 1). The rate of paradoxical psoriasis was 90.6% and 9.7% of the patients had a family history of psoriasis. Females constituted 64% of the patients. The mean age was 46±12 years and the disease duration were 146±92 months. Mean time interval between the PRs and diagnosis was 99,6±86 months, whereas median 12 (1-132) months between the PRs and the biological agent. Adalimumab (30.9 %), etanercept (20.1 %), and infliximab (18.7 %) were the three most frequently used agents during the PRs. However, 8.6% of the patients developed PRs with non-TNF agents. Only seven patients (5.1%) who had PRs discontinued the drug, while 28 patients (20.6%) continued to receive the agent that caused the PRs. Majority of patients were switched to other TNF-α inhibitors (48.5%) and non-TNF agents (25.7%). When we limited our analysis to paradoxical psoriasis patients, we observed complete remission in 43.5% of patients and progression in only six (4.7 %) of patients. (Figure 1).

Table 1.

Characteristics of RA and SpA patients who developed paradoxical reactions

NPatients (N, %)Paradoxical reactions (PRs)139  Psoriasis126 (90.6%)  Uveitis6 (4.3%)  Sarcoidosis2 (1.4%)  IBD1 (0.7%) Other*4 (4.3%)Primary disease139  RA40 (28.8%)  SpA99 (71.29%)Time interval between PRs-diagnosis of RA/SpA (months)12499,6±86† 72 (3-420) ††Time interval between PRs-biological onset (months)12622±25† 12 (1-132) ††BMI, kg/m212328±5† 27,8 (17,3-49,7) ††Smokers (Current/ex)13161 (46.6%) / 10 (8.5%)Biological agents used during PRs139  TNF-α inhibitor used**127 (91.3%)  Secukinumab2 (1.4%)  Abatacept6 (4.3%)  Rituximab4 (2.9%)Biological agents used after PRs101  Etanercept31 (22.8%)  Adalimumab15 (11%)  Secukinumab12 (8.8%)  Other***43 (57.5%)

PRs: Paradoxical reactions IBD: Inflammatory bowel disease. *Drug-induced lupus:3 Vasculitis:1. ** Adalimumab: 43 (30.9%), Etanercept: 28 (20.1%), Infliximab: 26 (18.7%), Certolizumab: 20 (14.4%), Golimumab: 10 (7.2%). *** Certolizumab: 9 (6.6%), Tofacitinib: 9 (6.6%), Infliximab: 7 (5.1%), Tocilizumab: 5 (3.7%), Golimumab: 4 (2.9%), Ustekinumab: 4 (2.9%), Rituximab:3 (2.2%), Abatacept: 1 (0.7%), Anakinra: 1 (0.7%). † mean ± standard deviation. †† median (min-max)

Conclusion

Clinicians should be aware that PRs may develop with biologic agents other than TNF-α inhibitors. Additionally, it is important to keep in mind that the development time of PRs could be variable. The mechanism(s) behind PRs remain unknown, and there is no currently available diagnostic or therapeutic protocol (2). The decision whether to continue or discontinue biologic agents should be individualized. We found that the majority of patients can be managed without discontinuing biologic agents. Finally, we believe that the experience of our large cohort can help physicians in clinical practice where sufficient protocol is lacking.

References

[1]Lluís Puig. Curr Probl Dermatol. 2018; 53:49-63.

[2]Michael J Murphy. J Am Acad Dermatol. S0190-9622(20)33154-6.

Disclosure of Interests

None declared

AB0766 Biologic Drug Preferences of Turkish Rheumatologists in Spondiloartropathy Patients with Advanced Chronic Renal Disease

Background

Biological therapies are the main treatment options for patients with active spondyloarthropathy (SpA) who do not respond to nonsteroidal anti-inflammatory drugs or conventional synthetic disease-modifying drugs. Kidney diseases are not a contraindication to biologic therapies. However, there are some safety concerns for these drugs for patients with advanced chronic kidney disease. De novo infection or recurrence of infections are the main challenges in patients with multiple comorbidities during biologic treatments. Neverthless, physicans should initiate these treatments in active and resistant diseases.

Objectives

Here, we evaluated which biologic therapies clinicians’ first option to initiate in SpA patients with advanced chronic kidney disease (CRD).

Methods

Total 140 patients of TREASURE database who fullfield axial and/or peripheral ASAS SpA criteria with glomerular filtration rate < 60 ml/dk (stage 3,4 or 5 CRD according to The National Kidney Foundation classification) were included to the study. Renal stages of the patients were evaluated when biologic therapy was initiated. Five anti-TNF (adalimumab, certolizumab, etanercept, golimumab, infliximab) and an interleukin-17A blocker (secukinumab) were on the market during the study. We evaluated physicans’ first choice for biologic therapy for patients with stage 3,4 and 5 CRD respectively.

Results

More than two thirds of the patients had stage 3 CRD. Anti-TNF drugs were the first choice of biologic treatment in the patients with advanced CRD. Etanercept was started at most to the patients in general, in stage 3 and in stage 5 CRD groups. However, adalimumab was the first choise in stage 4 CRD. Both etanercept and adalimumab were the first drug of choise in three fourth of the stage 4 and stage 5 patients. All two patients on Il-17A blocker had stage 3 CRD (Table 1).

Table 1.

Drug of choise in the SpA patients with advanced chronic renal diseases

NTotal n (%)NStage 3 n (%)NStage 4 n (%)NStage 5 n (%)Adalimumab14044 (31.4)10830 (27.8)209 (45.0)125 (41.6)Etanersept52 (37.1)41 (38.0)5 (25.0)6 (50.0)Golimumab9 (6.0)7 (6.5)2 (10.0)0 (0)Infliksimab28 (20.0)23 (21.3)4 (20.0)1 (8.4)Secukinumab3 (2.1)3 (2.8)0 (0)0 (0)Sertolizumab4 (2.8)4 (3.7)0 (0)0 (0)

Conclusion

We show that rheumatologists in the TREASURE group prefer to initiate anti-TNF drugs first in all advanced CRD stages. Etanercept was the first choice in these patients.

References

[1]Sieper J, et al. The Assessment of SpondyloArthritis international Society (ASAS) handbook: a guide to assess spondyloarthritis. Ann Rheum Dis. 2009 Jun;68 Suppl 2:ii1-44. doi: 10.1136/ard.2008.104018. PMID: 19433414.

[2]Antoni C, Braun J. Side effects of anti-TNF therapy: current knowledge. Clin Exp Rheumatol. 2002 Nov-Dec;20(6 Suppl 28):S152-7. PMID: 12463468.

[3]Kalyoncu U, et al. Methodology of a new inflammatory arthritis registry: TReasure. Turk J Med Sci. 2018 Aug 16;48(4):856-861. doi: 10.3906/sag-1807-200. PMID: 30119164.

Disclosure of Interests

None declared

AB0825 A solution proposal to the intraobserver disagreement problem in the evaluation of sacroiliac joint radiography: ‘‘Image Processing Method’’

Background

Ankylosing spondylitis (AS) is a rheumatological disease that causes low back pain. The diagnosis of ankylosing spondylitis is delayed for an average of 8 years due to the insidious course of the disease. Late diagnosis of AS can cause functional and physical disabilities. Radiographic sacroiliitis can be graded in the range of 0-4 and these classes may not be sharply separated from each other. Interpretation of the sacroiliac joint radiography may differ from physician to physician. In fact, the same physician may interpret it differently at different times (1). The reason for such confusion is the presence of blur or illumination and contrast problems leading to difficulties to detect pathological areas. This paper has developed a simple image processing technique that adjusts the contrast of such images by modifying their intensity distribution using the histogram information. This transformation gives a linear trend to the cumulative probability function associated with the image and makes the images better for human vision. The common characteristic of low contrast images is the concentration of the histogram values of the image intensity near a narrow range (2).

Objectives

Changing the contrast range into a wider range changes the image value distribution that leads to better image vision.

Methods

Rheumatologist scored 260 x-ray scans grade 0 to 4. One day later, the same rheumatologist scored again the same scans randomly. It has been noticed that most of the answers were closed to the first-day decision but not all of them. We processed all the x-ray images with histogram equalization. Then the rheumatologist scored the scans randomly and answered two times in two consecutive days. To compare the agreement in radiography interpretation Kappa test was used. We use IBM SPSS 21 for the statistical analysis (kappa test) and Matlab R2021a for the image processing part.

Results

Severe improvement before and after the image processing application by increasing the Kappa value from 0.55 (p<0.001) [moderate agreement] to 0.71(p<0.001) [substantial agreement] which is a substantial agreement.

Conclusion

Multidisciplinary approach can be helpful in solving the intraobserver disagreement problem. The use of image processing techniques can be used for the benefit of the patient in radiographs whose standardization is difficult due to multifactorial reasons. The histogram equalization method was found to be statistically significant in finding the optimum contrast for interpreting the sacroiliac joint radiography. The output of this work indicates and motivates our team into deeper research and more analyses on how to further improve our results.

Figure 1.

The original graph on the left, the classical histogram equalization method on the right and their histogram tables.

References

[1]van den Berg, R. et al. Agreement between clinical practice and trained central reading in reading of sacroiliac joints on plain pelvic radiographs. Results from the DESIR cohort. Arthritis Rheumatol 66, 2403–2411 (2014).

[2]Gu, K., Zhai, G., Wang, S., Liu, M., Zhoi, J., & Lin, W. (2015). A general histogram modification framework for efficient contrast enhancement. In 2015 IEEE International Symposium on Circuits and Systems (ISCAS).

Disclosure of Interests

None declared

Isolated recto-vaginal septum injury during parturition: Single-center experience

BACKGROUND

Traumatic rectal injuries are uncommon and can originate due to various causes. Rectal injuries have a high mor-bidity, regardless of cause, and detection at the time of occurrence is important to prevent fistula formation and/or stoma. In this article, treatment approaches in patients with isolated rectovaginal septum injury without perineal and sphincter injury during sponta-neous vaginal delivery are presented and the current literature is reviewed.

METHODS

The records of spontaneous vaginal deliveries that resulted in live births between January 2015 and January 2020 were analyzed retrospectively at our center. The records of patients with isolated rectovaginal septum injury were evaluated in terms of demographic and obstetric data, trauma, classification of injury, and early and late results.

RESULTS

Isolated septum injuries were detected 12 women (0.06%). Of the isolated rectovaginal septum injuries, 9 (75%) were clas-sified as Type III, 2 (16.6%) as Type IV, and 1 (8.3%) as a Type V injury according to the Rosenshein classification. Transvaginal repair was performed because all of the injuries underwent early surgical intervention, were limited, and exploration through the vagina was possible.

CONCLUSION

Rectal examination should be performed simultaneously with a detailed perineal examination after vaginal delivery. For birth-related rectal injuries detected early in appropriate patients, a primary repair without diversion stoma may be the best option.

INACTIVATED COVID-19 VACCINE CAN INDUCE REACTIVE POLYARTHRITIS IN OLDER PATIENTS: REPORT OF TWO CASES

Reactive arthritis is an acute, sterile, non-suppurative and inflammatory arthropathy that usually follows infection process. Gastrointestinal, genitourinary and respiratory tract infections generally provoke reactive arthritis. Also, reactive arthritis can be seen after vaccination. Reactive arthritis cases have been reported after tetanus, combined diphteria-poliomyelitis-tetanus toxoid, hepatitis B or influenza vaccination. Although reactive arthritis is more common in youngs, healthcare workers should be aware of the development of post inactivated COVID-19 vaccine reactive arthritis in older patients. We present two cases with ReA induced by inactivated coronavirus 2019 (COVID-19) vaccination (CoronaVac, Sinovac). Both patients in our study were over 70 years old and presented with polyarthritis that developed after vaccination. Rheumatoid factor and anti-nucleer antibody were negative and patients responded well to short-term steroid therapy, arthritis were not resistant.

AB0700 TOCILIZUMAB DID NOT REDUCE MORTALITY IN SEVERE COVID-19 PATIENTS BUT CAUSED THROMBOCYTOSIS

Background:

TCZ is a monoclonal antibody against Interleukin-6 receptor (IL-6R) which is used for relieving inflammation and reducing mortality in COVID-19 patients. Safety and efficacy of Tocilizumab (TCZ) in Covid-19 pneumonia is uncertain yet. In this study, we aimed to determine clinical outcomes in patients treated with TCZ.

Objectives:

In this study we aimed to share our retrospective results which we had obtained from patients with COVID-19 diagnosis received TCZ.

Methods:

We performed a retrospective case control study between May and August 2020 in Turkey. We compared outcomes in patients who received TCZ with those who did not. Death in hospital and intensive care unit (ICU) requirements were evaluated as endpoints. Demographic data, comorbidities, additional treatment, treatment side effects, laboratory and clinical results were retrospectively assessed. There are no significant differences between groups according to age, gender and Charlson Comorbidity Index (CCI).

Results:

12 (27.3%) patients died in standard group and eight (18.6%) patients died in TCZ group (p=0.150).Days of staying in the hospital were eight days in standard treatment group and 12 days in TCZ group (p=0.03). 10 of 43 patients in TCZ group were admitted to ICU. MV support was needed in 8 of these patients. 18 of 44 patients (40.9%) within the standard group were admitted to ICU and 12 patients (27.3%) were intubated (p=0.125,p=0.480). Significant IL-6 decrease was not observed post treatment in TCZ group according to pretreatment period (p=0.60). Significant decreases were examined in CRP and ferritin values through TCZ treatment. However, D-dimer and thrombocyte values increased.

Conclusion:

TCZ may not be an effective treatment for reducing ICU requirement, to prevent intubation or death, for shortening period for staying in hospital. The patients should be followed up closely for possible thrombosis because of increased D-dimer and thrombocytes with TCZ treatment.

References:

[1]Sharma A, Tiwari S, Deb MK, Marty JL. Severe acute respiratory syndrome coronavirus-2 (SARS-Cov-2): A global pandemic and treatment strategies. IntJ Antimicrob Agents. 2020 Aug; 56(2):106054.

[2]Singhal T. A rewiev of coronavirus Disease-2019(COVID-19). Indian J Pediatr. 2020 Apr;87(4):281-286.

[3]Mehta P, McAuley DF, Brown M, Sanchez E, Tattersall R.S, Manson J.J. COVID-19: consider cytokine storm syndromes and immunosuppression. Lancet. 2020;395(10229):1033-

[4]Teijaro J.R. Cytokine storms in infectious diseases. SeminImmunopathol. 2017;39:501–503.

[5]Zhang Y, Li J, Zhan Y, Wu L, Yu X, Zhang W et al. Analysis of Serum Cytokines in Patients with Severe Acute Respiratory Syndrome. Infect Immun 2004 Aug;72(8):4410-4415.

[6]Zhang C, Wu Z, Li JW, Zhao H, Wang GQ. Cytokine release syndrome in severe COVID-19: interleukin-6 receptor antagonist tocilizumab may be the key to reduce mortality. Int J Antimicrob Agents. 2020 May; 55(5):105954.

[7]Xu Z, Shi L, Wang Y, Zhang J, Huang L, Zhang C et al. Pathological findings of COVID-19 associated with acute respiratory distress syndrome. Lancet Respir Med. 2020;8(4):420–2

[8]Fu B, Xu X, Wei H. Why tocilizumab could be an effective treatment for severe COVID-19? J Transl Med 18,164 (2020).

[9]Guaraldi G, Meschiari M, Cozzi-Lepri A, Milic J, Tonelli R, Menozzi M et al. Tocilizumab in patients with severe COVID-19: a retrospective cohort study. Lancet Rheumatol. 2020 Aug;2(8):e474-e484.

[10]Gupta S, Wang W, Hayek S.S, Chan L, MathewsK.S, Melamed M.L et al. Association Between Early Treatment With Tocilizumab and Mortality Among Critically Ill Patients With COVID-19. JAMA Intern Med. 2021 Jan1;181(1):41-51.

[11]Campochiaro C, Della-Torre E, Cavalli G, De Luca G, Ripa M, Boffini N et al Efficacy and safety of tocilizumab in severe COVID- 19 patients: a single-centre retrospective cohort study. Eur J Intern Med. 2020 Jun;76:43-49.

Disclosure of Interests:

None declared

POS0036 AN ARTIFICIAL INTELLIGENCE MODEL IN RHEUMATOLOGY: INTERPRETATION OF THE SACROILIAC JOINT GRAPHY IN ANKYLOSING SPONDYLITIS

Background:

There is an average of 8 years delay in the diagnosis of ankylosing spondylitis (AS). The most important danger of late diagnosis is that the disease can cause physical and functional disability (2). There is no specific diagnostic biomarker for AS. Sacroiliac joint (SIJ) radiography is frequently used in the diagnosis and follow-up of AS due to its easy accessibility and low cost. It can be classified as grade 0, 1, 2, 3, 4, and these classes may not be sharply separated from each other (3).

Objectives:

Interpretation of the SIJ radiography may differ from physician to physician. In fact, the same physician may interpret it differently at different times (3). We wanted to find a solution to the intraobserver disagreement problem with the artificial intelligence model.

Methods:

The SIJ radiography of 590 patients who applied to our center were divided into 3 categories as right and left, separately, grade 0, grade 1-2, grade 3-4, and an educational data set was prepared for the object recognition method. 488 images were augmented through noise from 490 images in the training data. 242 articular objects were trained for grade 0, 278 for grade 1-2, and 1426 for grade 2-3. The model was tested with 100 images for 36 joint objects for grade 0, 29 for grade 1-2, and 135 for grade 3-4 to create a computer vision-artificial intelligence model (image 1).

Results:

Training performance is 70% for grade 0, %63 for grade 1-2, %90 for grade 3-4 and test performance is %52 for grade 0, %24 for grade 1-2, %86 intersection over union (I/U:Intersection over Union is a form of measurement used to indicate the accuracy of an object detector.) for grade 3-4. The mean average precision (mAP) score of our object detection model is %65.9 for test data set (image 1). The estimation quality of the model can be affected by the distribution and number of each class.

Conclusion:

The experience of the x-ray technician, dose adjustment, and position differences due to patient compliance complicate the standardization of SIJ radiography and this may cause interobserver disagreement (3). Artificial intelligence models to be created with a larger and homogeneous data set in order to ensure objective standardization in the interpretation of the SIJ graph can help physicians.

References:

[1]Braun J. ‘Axial spondyloarthritis including ankylosing spondylitis’ Rheumatology (Oxford). 2018 1;57(suppl_6):vi1-vi3

[2]Rudwaleit M, van der Heijde D, Khan MA, Braun J, Sieper J. How to diagnose axial spondyloarthritis early. Ann Rheum Dis 2004; 63:535-543.

[3]van den Berg, R. et al. Agreement between clinical practice and trained central reading in reading of sacroiliac joints on plain pelvic radiographs. Results from the DESIR cohort. Arthritis Rheumatol 66, 2403–2411 (2014).

Disclosure of Interests:

None declared.

POS0935 DO PERIPHERAL AND EXTRA MUSCULOSKELETAL MANIFESTATIONS HAVE AN IMPACT ON BIOLOGIC DMARD PRESCRIBING PATTERNS IN AXIAL SPONDYLOARTHRITIS: THE RESULTS OF TREASURE EXPERIENCE

Background:

Axial spondyloarthritis (axSpA) is a chronic inflammatory rheumatic disease mainly affecting sacroiliac joints and spine. Peripheral arthritis, dactylitis and enthesitis may also occur. Extra musculoskeletal manifestations (EMMs; uveitis [AAU], inflammatory bowel disease [IBD] and psoriasis [Pso] are among the most common ones) are important features and might have an impact on the disease burden in patients with axSpA. The presence of EMM, in particular IBD and AAU could influence the choice of TNFi however little is known regarding the role of peripheral manifestations together with the EMM on the prescribing patterns in axSpA patients.

Objectives:

To examine the frequency of peripheral and EMMs in a real-world axSpA cohort and their effect on the choice of first advanced treatment.

Methods:

In total 1687 axSpA patients (58% male and the mean age (±SD) was 38.5 ± 10.9) who initiated his/her first biologic were included in the present analysis. The data for the current study was obtained from the TReasure web-based registry; in which RA and SpA patients treated with bDMARDs from different regions of Turkey. Baseline demographic, disease related characteristics, peripheral and EMMs were extracted. Characteristics of patients with and without peripheral/extra-musculoskelatal involvement were compared as well as factors/covariates associated with the choice of first TNFi and secukinumab was analysed.

Results:

Enthesis (28.2%) was found the most common peripheral manifestations and peripheral arthritis (26.4%) and hip arthritis (24.4%) followed it. Symptom duration to the first advanced treatment initiation was significantly shorter in axSpA patients with peripheral arthritis, enthesitis, dactylitis and psoriasis and longer in hip arthritis and AAU. HLA-B27 positivity was significantly lower in patients with arthritis, psoriasis and IBD and higher with hip arthritis and AAU. In multivariate analysis the presence of IBD is significantly associated with the preference of monoclonal TNFi (mab) over etanercept (ETA) (OR 5,770; 95%CI 1.788-18.616). However ETA was preferred in patients with hip arthritis (p=0.003), longer symptom duration (p=0.049), and using sulfasalazine (p=0.043). In comparison with mabs, secukinumab (SEC) prescription was found to be significantly associated with higher age (p=0.001), sulfasalazin (p=0.001) and methotrexate usage (p=0.053) among axSpA patients need their first advanced treatment.

Conclusion:

The results of the current study confirm the pathophsyologic associations of peripheral involvement and EMM in axSpA patients. Apart from hip arthritis the presence of IBD has an impact on the prescription of advanced treatment in real-life.

Table 1.

Clinical characteristics of patients in cohort

All patients(n=1678)Peripheral arthritis(n=445)Dactilitis(n=81)Enthesis(n=476)Uveitis(n=193)Psoriazis(n=152)IBD(n=78)Hip involvemet(n=412)Age, mean±SD38,5±10,938,3±11,637,4±11,137,9±10,741,3±11,439,9±11,341,6±12,239,2±11,2Male sex,n (%)974 (57,7)184 (41,3)34 (42)238 (50)96 (49,7)54 (35,5)43 (55,1)272 (66)Symptom duration, mean month±SD108,5±98,996,9±92,979,1±76,5100,4±92,7144,7±110,287,7±9494,5±98133,3±108,2HLA B27 positivity, n (%)621 (53,7)142 (46,3)27 (51,9)174 (49,4)104 (77)34 (36,2)16 (27,1)186 (59,8)Concomitant cDMARD usage (yes), n (%)420 (24,9)170 (38,2)39 (48,1)133 (27,9)53 (27,5)58 (38,2)24 (30,8)99 (24)BASDAİ,mean±SD5,1±2,55,1±35,3±3,15,3±2,94,7±2,55,6±2,44,8±2,35,3±2,1ASDAS-CRP, mean±SD3,1±1,52,6±1,92,5±1,82,8±1,72,9±1,73,4±1,33,1±1,53,7±1,4

Disclosure of Interests:

None declared

POS0939 WHEN DO THE ACTIVE SACROILIITIS MRI FINDINGS LOSS IN ANKYLOSING SPONDYLITIS? A RETROSPECTIVE, CROSS-SECTIONAL, OBSERVATIONAL STUDY

Background:

Ankylosing Spondylitis (AS) is an inflammatory rheumatic disease that affects the spine and sacroiliac joints (SIJ). Non-steroidal anti-inflammatory drugs (NSAIDs), modifying antirheumatic drugs (DMARDs), and recently anti-TNF blockers, which are more costly than NSAIDs but used in resistant cases, are generally used in its treatment (1).

Objectives:

While SIJ-MRI is one of the imaging methods in the diagnosis of the disease, it is not yet used in its follow-up (2). We wanted to define when the activated SIJ-MRI findings, which showed early sacroiliitis, regressed according to the treatment option.

Methods:

Among the 8100 SIJ-MRIs taken in our hospital in the last 5 years, those that were reported normally were excluded from the study. Among the remaining 1150 patients with active or chronic SIJ findings, a total of 87 patients who were diagnosed with AS and had active SIJ findings in the first imaging and had a second SIJ-MRI examination for any reason were included in our retrospective, cross-sectional and observational study. According to the treatment option, how long the active SIJ-MRI findings disappeared was calculated in months using the Kaplan-Meier method.

Results:

Of the 87 patients examined in the study, 41 were women and 46 were men. The average age is 32.7. Active SIJ-MRI findings disappeared in a mean of 30.6 months for 11 of 24 patients who did not use any medication, in a mean of 33.9 months for 6 of 16 patients using NSAIDs, in a mean of 40.7 months for 14 of 34 patients using sulfasalazine, in a mean of 28.2 months for 3 of 6 patients using adalimumab, in a mean of 24.4 months for 3 of 5 patients using methotrexate, 11.9 month for 2 of 1 patient using certolizumab. There was no statistically significant difference between the groups.

Conclusion:

The signs of active sacroiliitis disappeared in less time in patients who did not receive any treatment than those using NSAIDs and sulfasalazine. Patients using anti-TNF blockers had earlier results than those using no medication. The reason for this may be the progressive course of patients who are switched to the next level of treatment and their late response to treatment, as well as the mechanism of the disease (2-3). This situation brings to the agenda the tendency of physicians to over-treat the disease. More randomized controlled studies are needed regarding new treatment options.

References:

[1]Braun J. ‘Axial spondyloarthritis including ankylosing spondylitis’ Rheumatology (Oxford). 2018 1;57(suppl_6):vi1-vi3.

[2]Braun J, Baraliakos X, Golder W, Brandt J, Rudwaleit M, Listing J, Bollow M, Sieper J, van der Heijde D. Magnetic resonance imaging examinations of the spine in patients with ankylosing spondylitis, before and after successful therapy with infliximab. Arthritis & Rheumatism Vol. 48, No. 4, April 2003, pp 1126–1136.

[3]Jee WH, McCauley TR, Lee SH, Kima SH, Ima SA, Had KY. Sacroiliitis in patients with ankylosing spondylitis: association of MR findings with disease activity. Magnetic resonance imaging 2004:22;245–250.

Disclosure of Interests:

None declared

AB1161 ARTIFICIAL INTELLIGENCE FOR RHEUMATOLOGY

Background:

Magnetic resonance imaging (MRI) of sacroiliac (SI) joints is used to detect early sacroiliitis(1). There can be an interobserver disagreement in MRI findings of SI joints of spondyloarthropathy patients between a rheumatologist, a local radiologist, and an expert radiologist(2). Artificial Intelligence and deep learning methods to detect abnormalities have become popular in radiology and other medical fields in recent years(3). Search for “artificial intelligence” and “radiology” in Pubmed for the last five years returned around 1500 clinical studies yet no results were retrieved for “artificial intelligence” and “rheumatology”.

Objectives:

Artificial Intelligence (AI) can help to detect the pathological area like sacroiliitis or not and also allows us to characterize it as quantitatively rather than qualitatively in the SI-MRI.

Methods:

Between the years of 2015 and 2019, 8100 sacroiliac MRIs were taken at our center. The MRIs of 1150 patients who were reported as active or chronic sacroiliitis from these sacroiliac MRIs or whose MRIs were considered by the primary physician in favor of sacroiliitis was included in the study. 1441 MRI coronal STIR sequence of 1150 patients were tagged as ‘’active sacroiliitis’’ and trained to detect and localize active sacroiliitis and provide prediction performance. This model is available for various operating systems. (Image1)

Results:

Precision score, the percentage of sacroiliac images of the trained model, is 87.1%. Recall, the percentage of the total sacroiliac MRIs correctly classified by the model, is 82.1% and the mean average precision (mAP) of the model is 89%.

Conclusion:

There are gray areas in medicine like sacroiliitis. Inter-observer variability can be reduced by AI and deep learning methods. The efficiency and reliability of health services can be increased in this way.

References:

[1]Jans L, Egund N, Eshed I, Sudoł-Szopińska I, Jurik AG. Sacroiliitis in Axial Spondyloarthritis: Assessing Morphology and Activity. Semin Musculoskelet Radiol. 2018;22: 180–188.

[2]B. Arnbak, T. S. Jensen, C. Manniche, A. Zejden, N. Egund, and A. G. Jurik, “Spondyloarthritis-related and degenerative MRI changes in the axial skeleton—an inter- and intra-observer agreement study,”BMC Musculoskeletal Disorders, vol. 14, article 274, 2013.

[3]Rueda, Juan C et al. “Interobserver Agreement in Magnetic Resonance of the Sacroiliac Joints in Patients with Spondyloarthritis.”International journal of rheumatology(2017).

Image1.

Bilateral active sacroiliitis detected automatically by AI model (in right sacroiliac joint 75.6%> (50%), in left sacroiliac joint 65% (>50%))

Disclosure of Interests:

None declared

AB1034 DEPRESSION AND ANXIETY IN FAMILIAL MEDITERRANEAN FEVER

Background:

Familial Mediterranean Fever (FMF) is a hereditary autoinflammatory disease characterized by recurrent attacks of fever, peritonitis, pleuritis, arthritis, and skin eruption (1). It is shown by studies that chronic diseases like diabetes mellitus, chronic heart disease, hypertension which other than inflammatory – rheumatologic disease increase depression and anxiety (2). There are a few studies evaluating depression and anxiety in FMF patients, and these results are conflicting (3,4).

Objectives:

To assess the frequency of depression and anxiety in patients with Familial Mediterranean Fever (FMF)

Methods:

In this study, 77 FMF patients aged 18 and over who were followed up in Sakarya University Education and Research Hospital, Department of Rheumatology, and 78 healthy volunteers aged 18 and over as thecontrol group. Beck depression scale and Beck anxiety scale were used to depression and anxiety, respectively. Beck’sdepression scale was evaluated as 9 and below normal, 10-16 mild depression, 17-29 moderate depression, 30-63 severe depression. Beck anxiety scale was evaluated as 0-8 normal, 8-15 mild anxiety, 16-25 moderate anxiety, 26 and above severe anxiety.FMF disease severity was determined by Pras scoring.

Results:

The study group, comprised 77 diagnosed with FMF with a meanage of 37.18 and a control group comprised of 78 healthy controls (C) with a meanage of 35.32 (p=0,058). İn studygroup (P) %63.6, control group (C) %53.8 as female. %36.4 of thestudy group(C), %46.2 of the control group are male. (p=0,216). The prevalence of depression was significantly higher in FMF patients compared to the control group (in order P;C: normal %24,7; %47,4, mild depression: %40.3; %26.9, moderate depression %26; %19.2, severe depression %11.7; %6.4 p<0.015). Similarly in depression results; the prevalence of anxiety was significantly higher in FMF patients compared to the control group (in order P;C normal %23,4; %57.7, mild anxiety %26; %20.5, moderate anxiety %26; %15.4, severe anxiety %24.4; %6.4 p<0,001). Depression status was not correlated with FMF disease severity (p=0.645). A correlation was found between FMF severity and anxiety which it is which was found statistically significant (p=0.005).There was no relationship between erythrocyte sedimentation rate and C-reactive protein with depression and anxiety.

Conclusion:

Both anxiety and depression frequency are increased in FMF patients compared to healthy controls.

References:

[1]Livneh A, Langevitz P, Zemer D et al. (1997) Criteria for the diagnosis of familial Mediterranean fever. Arthritis Rheum 40 (10), 1879–85.

[2]Alonso J, Ferrer M, Gandek B, Ware JE Jr, Aaronson NK, Mosconi P, Rasmussen NK, Bullinger M, Fukuhara S, Kaasa S, Leplège A, IQOLA Project Group (2004) Health-related quality of life associated with chronic conditions in eight countries: results from the International Quality of Life Assessment (IQOLA) Project. Qual Life Res 13:283–298

[3]Makay B, Emiroglu N, Unsal E (2010) Depression andanxiety in children and adolescents with familial Mediterranean fever. Clin Rheumatol 29, 375–9.

[4]Giese A, Ornek A, Kilic L, Kurucay M, Sendur S. N., Lainka E, Henning B. F. Anxiety and depression in adult patients with familialMediterranean fever: a study comparing patients living in Germany and Turkey. International Journal of Rheumatic Diseases 2017; 20: 2093–2100

Disclosure of Interests:

None declared

AB0743 DISEASE CHARACTERISTICS OF PSORIATIC ARTHRITIS PATIENTS MAY DIFFER ACCORDING TO AGE AT PSORIASIS ONSET: CROSS-SECTIONAL ANALYSIS OF PSORIATIC ARTHRITIS-INTERNATIONAL DATABASE

Background:

Psoriasis and psoriatic arthritis (PsA) are heterogenous diseases with various disease manifestations and phenotypes. Psoriasis has a bimodal age of onset being early (before the age of 40, type 1) and late. The impact of this classification on the PsA features is not well understood.

Objectives:

To compare the PsA characteristics of patients with early- and late-onset psoriasis in a large, multicenter database

Methods:

PSART-ID (Psoriatic Arthritis-International Database) is a prospective, multicenter web-based registry (www.trials-network.org) of patients with PsA. A detailed data collection was performed including demographics (sex, age, duration of education, smoking status, BMI), skin features (psoriasis onset date, type, initially involved site of skin, nail involvement (ever) and family history) and PsA characteristics (type of articular involvement and presence of axial, dactylitis (ever), enthesitis (ever), family history) and indices for disease activity and function (DAPSA, Leeds enthesitis index, BASDAI, BASFI, patient and physician global assessment, pain, HAQ-DI). We grouped according to the age at psoriasis onset (early onset, psoriasis before the age of 40 (EOPsO); late-onset, psoriasis after the age of 40 (LOPsO)), patient and disease characteristics of the groups were compared (1). Due to the differences among groups, following adjustments weer made: BMI for age, nail involvement for PsO disease duration, axial PsA for PsA disease duration.

Results:

A total of 1634 (62.8% females; EOPsO, 1108 (67.8%); LOPsO, 526 (32.2%)) patients with PsA was recruited. Rate of over-weight patients was higher in LOPsO group (66.8% vs. 86.8%, p<0.001; adjusted for age - aOR 1.55 (1.11-2.20; % 95 CI)). The EOPsO group had the scalp involvement as the initial site of skin disease more often than the LOPsO group (56.7% vs. 43.0%, p<0.001), whereas extremity involvement was more frequent as the initial finding in the LOPsO group (EOPsO vs. LOPsO 63.8% vs. 74.2%, p<0.001). Nail involvement (ever) was more prominent in EOPsO group, however, the significance was disappeared when adjusted for psoriasis duration. Interaction between gender and both axial disease and psoriatic disease family history were found (axial disease in man; EOPsO vs LOPsO; 38.0% vs. 25.4%; p=0.005; adjusted for PsA duration - aOR 0.56 (0.38-0.84; %95 CI) // psoriatic disease family history in females; EOPsO vs LOPsO; 39.5% vs. 30.1%; p=0.003; OR 0.65 (0.50-0.86; %95 CI)). Duration between PsO and PsA was significantly longer in EOPsO group (148 vs. 24 months, p<0.001). In EOPsO group, more patients had PsO preceeding PsA than LOPsO group (81.8% vs. 60.6%, p<0.001), however, synchronous disease -defined as the diagnosis of PsO and PsA within the same year- was more common in LOPsO group (16.6% vs. 30.3%, p<0.001) (Table 1). Psoriatic disease activity parameters, patient and physician reported outcomes and HAQ-DI scores were similar in both groups.

Table 1.

Comparison of psoriatic arthritis patients‘ characteristics according to age at psoriasis onset

Conclusion:

Clinical features of PsA may be affected by the age at the onset of psoriasis. As the genetic background is different in early and late-onset psoriasis, this may suggest a different pathogenetic mechanism based on the psoriasis phenotype, also affecting the PsA features. Further prospective studies are needed to define whether the classification of PsA requires including psoriasis phenotypes as well.

References:

[1]Henseler T, Christophers E. Psoriasis of early and late onset: characterization of two types of psoriasis vulgaris. J Am Acad Dermatol. 1985;13(3):450-6.

Disclosure of Interests:

Emre Bilgin: None declared, Özün Bayindir: None declared, esen kasapoğlu: None declared, Sibel Bakirci: None declared, Dilek Solmaz: None declared, Gezmiş Kimyon: None declared, Atalay Doğru: None declared, Ediz Dalkiliç: None declared, Cem Özişler: None declared, Meryem Can: None declared, Servet Akar: None declared, Emine Figen Tarhan: None declared, Şule Yavuz: None declared, Levent Kiliç: None declared, Orhan Küçükşahin: None declared, Ahmet Omma: None declared, Emel Gönüllü: None declared, Fatih Yildiz: None declared, Duygu Ersözlü: None declared, abdurrahman tufan: None declared, Muhammet Çinar: None declared, Abdulsamet Erden: None declared, Sema Yilmaz: None declared, Seval Pehlevan: None declared, Tuncay Duruöz: None declared, Sibel Aydin: None declared, Umut Kalyoncu Consultant of: Abbvie, Amgen, Janssen, Lilly, Novartis, UCB

AB0761 DEMOGRAPHIC AND CLINICAL FEATURES OF JUVENILE-ONSET PSORIATIC ARTHRITIS: RESULTS FROM PsART-ID REGISTRY

Background:

Although psoriatic arthritis (PsA) may be seen at any decades, juvenil onset PsA is relatively rare. Moreover, there were no more data about clinical features, treatments, and course in juvenile PsA when they reached to adult age.

Objectives:

The objective of this study was to assess and compare demographic and clinical features for juvenile onset PsA and adult onset PsA.

Methods:

PsART-ID is a multicenter, international database, investigating the disease characteristic in real life (1). Briefly, demographic data, PsA subtypes, uveitis, enthesitis, dactylitis, Co-morbidities, disease activity scores (TJC, SJC, VAS-pain, VAS patients and physician global assessments, VAS-fatigue, BASDAI), and functional status (HAQ-DI, BASFI) were recorded. Psoriasis and PsA starting age were noted, as well. Patients were classified as juvenile PsA or juvenile PsO (under 18 years old). Results were compared regarding to juvenile versus adult onset age.

Results:

Overall, 1644 PsA patients were included to study, 301/1644 (18.3%) patients had juvenile onset psoriasis. Of 39/1644 (2.4%) patients had juvenile onset PsA, as well. As expected, juvenile onset PsA patients were younger, however PsA disease duration were longer than adult onset PsA patients. There were no any difference between demographic and clinical data, except BMI and enthesitis were less frequently at the juvenile onset PsA groups. Although, ever csDMARD using were similar between two groups, however, juvenile onset PsA patients were used more frequently bDMARDs.

Table.

Comparison of demographic and clinical characteristics of juvenile and adult-onset psoriatic arthritis

Juvenile onsetAdult onsetpN (%)39 (2.4)1605 (97.6)Female Sex n (%)24 (61.5)1006 (62.7)0.884PsA beginning age mean (SD)13.3 ± 3.8542.3 ± 12.9<0.001Current age mean (SD)26.6 ±10.747.3 ±13.07<0.001Duration of psoriasis (years)17.10 ± 11.2614.75 ± 11.780.124Duration of psoriatic arthritis (years)13.5 ±115.06 ± 6.7<0.001Cigarette smoking (ever) n (%)15/38641/14940.72Education duration/year (mean,SD)10.09 ± 3.679.52 ± 4.810.464BMI (kg/m2) (mean, SD)24.5 ±5.128.3 ± 5.21<0.001Family history of PsO/PsA n (%)15 (38.5)559 (34.9)0.642Nail involvement n (%)18 (46.2)762 (47.5)0.864Dactilitis n (%)9 (23.7)367 (24)0.958Entesitis n (%)3 (7.9)384 (25.7)0.013Uveitis n (%)-13 (4.3)0.713Axial involvement (%)15 (38.5)464 (29)0.199Methotrexate36 (92.3)1348 (84)0.162Sulfasalazine17 (43.6)612 (38.1)0.488Leflunomide14 (35.9)379 (23.6)0.076Biologic DMARDs102 (33.9)358 (26.8)0.013

Conclusion:

Although psoriasis may be seen frequently in the juvenile age, juvenile onset PsA was not so frequent in our PsA cohort. Although, ever csDMARD using were similar between two groups, however, juvenile onset PsA patients were used bDMARDs more frequently.

References:

[1]Kalyoncu U et al. The Psoriatic Arthritis Registry of Turkey: results of a multicenter registry on 1081 patients. Rheumatology. 2017;56:279-286.

Disclosure of Interests:

Serpil ERGULU EŞMEN: None declared, Ozun Bayindir: None declared, esen kasapoğlu: None declared, Sibel Bakirci: None declared, Dilek Solmaz: None declared, Gezmiş Kimyon: None declared, Atalay Doğru: None declared, Ediz Dalkiliç: None declared, Cem Özişler: None declared, Meryem Can: None declared, Servet Akar: None declared, Emine Figen Tarhan: None declared, Sule Yavuz: None declared, Levent Kiliç: None declared, Orhan Küçükşahin: None declared, Ahmet Omma: None declared, Emel Gönüllü: None declared, Fatih Yildiz: None declared, Duygu Ersözlü: None declared, abdurrahman tufan: None declared, Muhammet Çinar: None declared, Abdulsamet Erden: None declared, Sema Yilmaz: None declared, Seval Pehlevan: None declared, Mehmet Tuncay Duruöz: None declared, Sibel Aydin: None declared, Umut Kalyoncu Consultant of: Abbvie, Amgen, Janssen, Lilly, Novartis, UCB

AB1093 INTEROBSERVER AGREEMENT IN MAGNETIC RESONANCE OF SACROILIAC JOINTS ABOUT ACTIVE SACROILIITIS

Background:

Axial spondyloarthritis has characteristic clinical features such as enthesitis, sacroiliitis and spondylitis, and extra-articular manifestations(1). Magnetic resonance imaging (MRI) of sacroiliac (SI) joints is used to detect early sacroiliitis(2). Health institutions in our country carry out some of the radiology reporting services by outsourcing for reasons such as high cost and insufficient number of radiologists(3).

Objectives:

We decided to evaluate the interobserver agreement in active MRI findings of SI between radiologist of outsourcing radiology services and local/expert radiologist in musculoskeletal diseases.

Methods:

Between the years of 2015 and 2019, 8100 sacroiliac MRIs were taken at our center. The MRI of 1150 patients who were reported as active or chronic sacroiliitis from these sacroiliac MRIs or whose MRI was considered by the primary physician in favor of sacroiliitis was included in the study. Concordance between Evaluation and Service Procurement was examined using Kappa (k) coefficients. Mc Nemar test was used to compare the evaluation result between two observers. A p-value <0.05 was considered significant. Analyses were performed using commercial software (IBM SPSS Statistics, Version 23.0. Armonk, NY: IBM Corp.)

Results:

Of the 1150 patients examined in the study, 526 (45.7%) were male and 624 (54.3%) were female. The general average age is 37.20 ± 11.65 and the average age of men and women is 34.98 ± 11.19 and 39.07 ± 11.71 respectively. A statistically significant difference was found between the expert radiologists and outsourcing radiologist reports. In other words, a high level of compatibility was not found among the evaluators (p <0.001). When the consistency between expert radiologist and outsourced radiologist reports was examined, it was observed that there was a medium level of concordance (k = 0.589).

Conclusion:

The diagnosis of a spondyloarthropathy may be delayed for some reasons. In addition to the insidious course of the disease, being contented with an outsourced radiologist report may delay diagnosis. If the patient’s clinic and MRI report are not consistent, the patient should not be removed from follow-up.

References:

[1]Braun J. ‘Axial spondyloarthritis including ankylosing spondylitis’ Rheumatology (Oxford). 2018 1;57(suppl_6):vi1-vi3

[2]Jans L, Egund N, Eshed I, Sudoł-Szopińska I, Jurik AG. Sacroiliitis in Axial Spondyloarthritis: Assessing Morphology and Activity. Semin Musculoskelet Radiol. 2018;22: 180–188.

[3]Quélin B, Duhamel F. Bringing Together Strategic Outsourcing and Corporate Strategy: European Management Journal. 2003. pp. 647–661. doi:10.1016/s0263-2373(03)00113-0

OUTSOURCING RADIOLOGIST REPORTSTOTALpNOT ACTIVE SACROILIITISACTIVE SACROILIITISEXPERT RADIOLOGIST REPORTSNOT ACTIVE SACROILIITIS508178686<0.0010.589ACTIVE SACROILIITIS59405464TOTAL5675831150

Disclosure of Interests:

None declared

The dynamics of prehospital/hospital care and modes of transport during civil conflict and terrorist incidents

OBJECTIVE

Prehospital and hospital care during incidents of mass violence and civil conflict involve a number of aspects that distinguish it from care during times of peace. We aimed to analyze the dynamics and outcomes of prehospital and hospital care during ongoing conflicts.

STUDY DESIGN

Multicentric prospective observational study.

METHOD

Patients enrolled in the study, which was conducted in Turkey, were all injured in armed conflict and taken to level 1 trauma centers. On admittance, patients were requested to complete a semistructured questionnaire containing questions on patient demographics, transport type, weapons used, injury severity score (ISS), and other incident-related factors. We analyzed patient outcomes (mortality, morbidity, complications, and length of hospital stay) and transfers of patients between hospitals. The present study evaluated the cases of 390 victims enrolled over a 9-month period and followed up for 6 months.

RESULTS

The majority of patients were transported by ambulances (n = 334, 85.6%); other transport modes were helicopters (n = 32, 8.2%) and private vehicles (n = 24, 6.2%). Nearly half of patients (48.7%) did not benefit by changing hospitals. During transport to hospitals, 4.1% of the vehicles in the study were involved in accidents. Using multiple regression analysis, only ISS (odds ratio [OR]: 1.098, 95% confidence interval [CI]: 1.044-1.156) and the Glasgow Coma Scale (OR: 0.744, 95% CI: 0.639-0.866) were found to affect mortality. In Receiver-operator characteristic analysis, a cutoff value of 22.5 for ISS had a sensitivity of 100% and a specificity of 89.6% for mortality.

CONCLUSIONS

Despite lower ISS values, patient outcomes were worse in terror incidents/civil conflicts. Transport modes did not significantly affect outcomes, whereas hospital transport was found to be inefficiently used.