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Yolcu, Yagiz U.

https://orcid.org/0000-0002-9620-6614

Mayo Clinic

Mayo Clinic

Citations 25

Minimally invasive posterior cervical foraminotomy versus the anterior transcorporeal approach for cervical radiculopathy: a systematic review and meta-analysis
Rajjoub, Rami , Nguyen, Ryan, El-Hajj, Victor Gabriel , Onyedimma, Chiduziem , Yolcu, Yagiz U. , Elmi‐Terander, Adrian , Bydon, Mohamad , Jarrah, Ryan , Elmi-Terander, Adrian , El-Hajj, Victor Gabriel , Nguyen, Ryan, Ghaith, Abdul Karim , Biase, Gaetano De , Akinduro, Oluwaseun O. , Abode-Iyamah, Kingsley

Journal of Neurosurgery: Spine | August 10, 2024 | Volume: 41 | Issue: 4 | Pages: 508-518

10.3171/2024.5.spine2497 Get It

OBJECTIVE Surgical decompression is often indicated for symptomatic cases of cervical radiculopathy. In the cervical spine, minimally invasive posterior cervical foraminotomy (MIS-PCF) and the anterior transcorporeal approach (ATCA) are modern techniques available to surgeons. This systematic review and single-arm meta-analysis aimed to assess surgical and patient-reported outcomes of MIS-PCF and ATCA for cervical radiculopathy. METHODS A systematic review of the literature was conducted using 1) Ovid; 2) Epub Ahead of Print and In-Process, In-Data-Review & Other Non-Indexed Citations; and 3) Scopus databases, which reported outcomes following cervical decompression using MIS-PCF or the ATCA. Specifically, baseline characteristics, operative outcomes, and changes in visual analog scale (VAS) neck pain score were assessed. The quality of the studies was graded using the modified Newcastle-Ottawa Scale for observational studies. RESULTS Forty studies with 1661 patients were identified. The comparative analysis of both techniques revealed no significant differences in complication (7%, 95% CI 5%–10%, p = 0.75) or reoperation rates (5%, 95% CI 3%–7%, p = 0.41). Additionally, there were no significant differences in estimated blood loss (55.39, 95% CI 44.62–66.16 ml, p = 0.55) or operative time (85.15, 95% CI 65.38–104.92 minutes, p = 0.05). The ATCA showed significantly greater improvement (p < 0.01) in VAS neck pain scores following surgery (ATCA point reduction 6.7, 95% CI 6.0–7.5 points vs MIS-PCF 3.0, 95% CI 1.0–5.0 points). CONCLUSIONS The ATCA and MIS-PCF are effective modern techniques for the surgical treatment of radiculopathy. Both approaches showed comparable postoperative outcomes, including complication and reoperation rates. However, the ATCA was shown to provide significantly greater improvement in VAS neck pain scores.
Survival and associated predictors for patients with pineoblastoma or pineal parenchymal tumors of intermediate differentiation older than 3 years: Insights from the National Cancer Database
Kerezoudis, Panagiotis , Yolcu, Yagiz U. , Laack, Nadia N., Ruff, Michael W. , Khatua, Soumen , Kizilbash, Sani H. , Yolcu, Yagiz Ugur, Kizilbash, Sani H , Daniels, David J. , Burns, Terry C.

Neuro-Oncology Advances | April 17, 2022 | Volume: 4 | Issue: 1 | Pages: No page available

10.1093/noajnl/vdac057 Get It

Abstract Background The management of pineal parenchymal tumors remains controversial. Methods The 2004-2017 National Cancer Database was queried for cases (age &gt;3 years) with histologically confirmed pineal parenchymal tumors of intermediate differentiation (PPTID, n = 90) or pineoblastoma (n = 106). Results Within the PPTID group, median age was 41 years; 49% were males. Five- and 10-year survival were 83% and 78%, respectively. Adjuvant radiation and chemotherapy were administered in 64% and 17% patients, respectively. The effect of radiation with or without chemotherapy (HR 1.15, P = .81, and HR 1.31, P = .72, respectively), and extent of resection (HR = 1.07, P = .93) was not significant. Within the pineoblastoma group, median age was 25 years; 51% were males. Five- and 10-year survival were 66% and 42%, respectively. Adjuvant radiation and chemotherapy were administered in 72% and 51%, respectively. In multivariable analysis, patients with pineoblastoma who received both radiation and chemotherapy (n = 39) had significantly lower hazard of death (HR 0.35, 95% CI 0.14-0.85, P = .02) compared to those who received radiation alone (n = 20) or no adjuvant treatment (n = 19). Finally, females in the pineoblastoma group were found to have a lower hazard of death compared to males (HR 0.24, 95% CI 0.10-0.58, P = .001); this comparison trended toward statistical significance in the PPTID subgroup (HR 0.40, 95% CI 0.14-1.08, P = .07). Conclusions Survival rates were higher in patients with PPTID vs patients with pineoblastoma. Adjuvant chemoradiation was associated with improved survival in pineoblastoma and females had lower hazards of death. Further research should identify specific patient profiles and molecular subgroups more likely to benefit from multimodality therapy.
Rheumatoid Arthritis in Spine Surgery: A Systematic Review and Meta-Analysis
Streufert, Benjamin D. , Onyedimma, Chiduziem , Yolcu, Yagiz U. , Elder, Benjamin D. , Currier, Bradford L. , Sebastian, Arjun S. , Bydon, Mohamad , Ghaith, Abdul Karim , Nassr, Ahmad

Global Spine Journal | March 18, 2022 | Volume: 12 | Issue: 7 | Pages: 1583-1595

10.1177/21925682211057543 Get It

Study Design Systematic Review and Meta-analysis Objective The purpose of this study is to synthesize recommendations for perioperative medical management of RA patients and quantify outcomes after spine surgery when compared to patients without RA. Methods A search of available literature on patients with RA and spine surgery was performed. Studies were included if they provided a direct comparison of outcomes between patients undergoing spine surgery with or without RA diagnosis. Meta-analysis was performed on operative time, estimated blood loss, hospital length of stay, overall complications, implant-related complications, reoperation, infection, pseudarthrosis, and adjacent segment disease. Results Included in the analysis were 9 studies with 703 patients with RA undergoing spine surgery and 2569 patients without RA. In RA patients compared to non-RA patients undergoing spine surgery, the relative risk of infection was 2.29 times higher (P = .036), overall complications 1.61 times higher (P < .0001), implant-related complications 3.93 times higher (P = .009), and risk of reoperation 2.45 times higher (P < .0001). Hospital length of stay was 4.6 days longer in RA patients (P < .0001). Conclusions Treatment of spinal pathology in patients with RA carries an increased risk of infection and implant-related complications. Spine-specific guidelines for perioperative management of antirheumatic medication deserve further exploration. All RA patients should be perioperatively co-managed by a rheumatologist. This review helps identify risk profiles in RA specific to spine surgery and may guide future studies seeking to medically optimize RA patients perioperatively.
The Role of Bevacizumab for Recalcitrant Intracranial Meningiomas: A Single Institution's Experience and a Systematic Review of the Literature
Alexander, A. Yohan , Onyedimma, Chiduziem , Bhandarkar, Archis R. , Yolcu, Yagiz U. , Bydon, Mohamad , Link, Michael J. , Alexander, A Yohan

Journal of Neurological Surgery Part B: Skull Base | March 4, 2022 | Volume: 83 | Issue: S 01 | Pages: S1-S270

10.1055/s-0042-1743938 Get It

Comparison of Oncologic Outcomes and Treatment-Related Toxicity of Carbon Ion Radiotherapy and En Bloc Resection for Sacral Chordoma
Yolcu, Yagiz U. , Zreik, Jad, Wahood, Waseem , Bhatti, Atiq ur Rehman , Bydon, Mohamad , Rose, Peter S. , Mahajan, Anita , Petersen, Ivy A. , Haddock, Michael G. , Laack, Nadia N., Jeans, Elizabeth B. , Imai, Reiko , Yamada, Shigeru , Foote, Robert L. , Ahmed, Safia K. , Jethwa, Krishan, Houdek, Matthew T. , Jethwa, Krishan R.

JAMA Network Open | January 7, 2022 | Volume: 5 | Issue: 1 | Pages: e2141927

10.1001/jamanetworkopen.2021.41927 Get It

Time trend analysis of database and registry use in the neurosurgical literature: evidence for the advance of registry science
Asher, Anthony L. , Sammak, Sally El , Michalopoulos, Giorgos D. , Yolcu, Yagiz U. , Alexander, A. Yohan , Knightly, John J. , Foley, Kevin T. , Shaffrey, Christopher I. , Rose, Geoffrey, Coric, Domagoj , Bisson, Erica F. , Glassman, Steven D. , Mummaneni, Praveen V. , Bydon, Mohamad , Michalopoulos, Giorgos , Alexander, A Yohan , Harbaugh, Robert E. , Rose, Geoffrey A.

Journal of Neurosurgery | December 24, 2021 | Volume: 136 | Issue: 6 | Pages: 1804-1809

10.3171/2021.9.jns212153 Get It

Hybrid surgery: a comparison of early postoperative outcomes between anterior cervical discectomy and fusion and cervical disc arthroplasty
Michalopoulos, Giorgos D. , Bhandarkar, Archis R. , Jarrah, Ryan , Yolcu, Yagiz U. , Alvi, Mohammed Ali , Sebastian, Arjun S. , Freedman, Brett A. , Bydon, Mohamad , Yolcu, Yagiz Ugur, Alvi, Mohammed Ali , Michalopoulos, Giorgos , Ghaith, Abdul Karim

Journal of Neurosurgery: Spine | November 26, 2021 | Volume: 36 | Issue: 4 | Pages: 575-584

10.3171/2021.7.spine21478 Get It

OBJECTIVE Hybrid surgery (HS) is the combination of anterior cervical discectomy and fusion (ACDF) and cervical disc arthroplasty (CDA) at different levels in the same operation. The aim of this study was to investigate perioperative variables, 30-day postoperative outcomes, and complications of HS in comparison with those of CDA and ACDF. METHODS The authors queried the American College of Surgeons National Surgical Quality Improvement Program (ACS-NSQIP) registry for patients who underwent multilevel primary HS, CDA, and ACDF for degenerative disc disease from 2015 to 2019. The authors compared these three operations in terms of 30-day postoperative outcomes, specifically readmission and reoperation rates, discharge destination, and complications. RESULTS This analysis included 439 patients who underwent HS, 976 patients who underwent CDA, and 27,460 patients who underwent ACDF. Patients in the HS and CDA groups were younger, had fewer comorbidities, and myelopathy was less often the indication for surgery compared with patients who underwent ACDF. For the HS group, the unplanned readmission rate was 0.7%, index surgery–related reoperation rate was 0.3%, and nonroutine discharge rate was 2.1%. Major and minor complications were also rare, with rates of 0.2% for each. The mean length of stay in the HS group was 1.5 days. The association of HS with better outcomes in univariate analysis was not evident after adjustment for confounding factors. CONCLUSIONS The authors found that HS was noninferior to ACDF and CDA in terms of early postoperative outcomes among patients treated for degenerative disc disease.
Impact of predominant symptom location among patients undergoing cervical spine surgery on 12-month outcomes: an analysis from the Quality Outcomes Database
Devin, Clinton J. , Asher, Anthony L. , Alvi, Mohammed Ali , Yolcu, Yagiz U. , Kerezoudis, Panagiotis , Shaffrey, Christopher I. , Bisson, Erica F. , Knightly, John J. , Mummaneni, Praveen V. , Foley, Kevin T. , Bydon, Mohamad , Alvi, Mohammed Ali

Journal of Neurosurgery: Spine | July 9, 2021 | Volume: 35 | Issue: 4 | Pages: 399-409

10.3171/2020.12.spine202002 Get It

OBJECTIVE The impact of the type of pain presentation on outcomes of spine surgery remains elusive. The aim of this study was to assess the impact of predominant symptom location (predominant arm pain vs predominant neck pain vs equal neck and arm pain) on postoperative improvement in patient-reported outcomes. METHODS The Quality Outcomes Database cervical spine module was queried for patients undergoing 1- or 2-level anterior cervical discectomy and fusion (ACDF) for degenerative spine disease. RESULTS A total of 9277 patients were included in the final analysis. Of these patients, 18.4% presented with predominant arm pain, 32.3% presented with predominant neck pain, and 49.3% presented with equal neck and arm pain. Patients with predominant neck pain were found to have higher (worse) 12-month Neck Disability Index (NDI) scores (coefficient 0.24, 95% CI 0.15–0.33; p < 0.0001). The three groups did not differ significantly in odds of return to work and achieving minimal clinically important difference in NDI score at the 12-month follow-up. CONCLUSIONS Analysis from a national spine registry showed significantly lower odds of patient satisfaction and worse NDI score at 1 year after surgery for patients with predominant neck pain when compared with patients with predominant arm pain and those with equal neck and arm pain after 1- or 2-level ACDF. With regard to return to work, all three groups (arm pain, neck pain, and equal arm and neck pain) were found to be similar after multivariable analysis. The authors’ results suggest that predominant pain location, especially predominant neck pain, might be a significant determinant of improvement in functional outcomes and patient satisfaction after ACDF for degenerative spine disease. In addition to confirmation of the common experience that patients with predominant neck pain have worse outcomes, the authors’ findings provide potential targets for improvement in patient management for these specific populations.
Identifying patients at risk for nonroutine discharge after surgery for cervical myelopathy: an analysis from the Quality Outcomes Database
Mummaneni, Praveen V. , Bydon, Mohamad , Knightly, John J. , Alvi, Mohammed Ali , Yolcu, Yagiz U. , Chan, Andrew K. , Foley, Kevin T. , Slotkin, Jonathan R., Potts, Eric A. , Shaffrey, Mark E., Shaffrey, Christopher I. , Fu, Kai-Ming, Wang, Michael Y. , Park, Paul , Upadhyaya, Cheerag D., Asher, Anthony L. , Tumialán, Luis M. , Bisson, Erica F. , Alvi, Mohammed Ali

Journal of Neurosurgery: Spine | May 21, 2021 | Volume: 35 | Issue: 1 | Pages: 25-33

10.3171/2020.11.spine201442 Get It

OBJECTIVE Optimizing patient discharge after surgery has been shown to impact patient recovery and hospital/physician workflow and to reduce healthcare costs. In the current study, the authors sought to identify risk factors for nonroutine discharge after surgery for cervical myelopathy by using a national spine registry. METHODS The Quality Outcomes Database cervical module was queried for patients who had undergone surgery for cervical myelopathy between 2016 and 2018. Nonroutine discharge was defined as discharge to postacute care (rehabilitation), nonacute care, or another acute care hospital. A multivariable logistic regression predictive model was created using an array of demographic, clinical, operative, and patient-reported outcome characteristics. RESULTS Of the 1114 patients identified, 11.2% (n = 125) had a nonroutine discharge. On univariate analysis, patients with a nonroutine discharge were more likely to be older (age ≥ 65 years, 70.4% vs 35.8%, p < 0.001), African American (24.8% vs 13.9%, p = 0.007), and on Medicare (75.2% vs 35.1%, p < 0.001). Among the patients younger than 65 years of age, those who had a nonroutine discharge were more likely to be unemployed (70.3% vs 36.9%, p < 0.001). Overall, patients with a nonroutine discharge were more likely to present with a motor deficit (73.6% vs 58.7%, p = 0.001) and more likely to have nonindependent ambulation (50.4% vs 14.0%, p < 0.001) at presentation. On multivariable logistic regression, factors associated with higher odds of a nonroutine discharge included African American race (vs White, OR 2.76, 95% CI 1.38–5.51, p = 0.004), Medicare coverage (vs private insurance, OR 2.14, 95% CI 1.00–4.65, p = 0.04), nonindependent ambulation at presentation (OR 2.17, 95% CI 1.17–4.02, p = 0.01), baseline modified Japanese Orthopaedic Association severe myelopathy score (0–11 vs moderate 12–14, OR 2, 95% CI 1.07–3.73, p = 0.01), and posterior surgical approach (OR 11.6, 95% CI 2.12–48, p = 0.004). Factors associated with lower odds of a nonroutine discharge included fewer operated levels (1 vs 2–3 levels, OR 0.3, 95% CI 0.1–0.96, p = 0.009) and a higher quality of life at baseline (EQ-5D score, OR 0.43, 95% CI 0.25–0.73, p = 0.001). On predictor importance analysis, baseline quality of life (EQ-5D score) was identified as the most important predictor (Wald χ2 = 9.8, p = 0.001) of a nonroutine discharge; however, after grouping variables into distinct categories, socioeconomic and demographic characteristics (age, race, gender, insurance status, employment status) were identified as the most significant drivers of nonroutine discharge (28.4% of total predictor importance). CONCLUSIONS The study results indicate that socioeconomic and demographic characteristics including age, race, gender, insurance, and employment may be the most significant drivers of a nonroutine discharge after surgery for cervical myelopathy.
Diagnostic yield, accuracy, and complication rate of CT-guided biopsy for spinal lesions: a systematic review and meta-analysis
Michalopoulos, Giorgos D. , Yolcu, Yagiz U. , Alvi, Mohammed Ali , Bydon, Mohamad , Yolcu, Yagiz Ugur, Bydon, Mohamad , Alvi, Mohammed Ali , Michalopoulos, Giorgos , Ghaith, Abdul Karim , Carr, Carrie M.

Journal of NeuroInterventional Surgery | April 21, 2021 | Volume: 13 | Issue: 9 | Pages: 841-847

10.1136/neurintsurg-2021-017419 Get It

Background CT-guided biopsy is a commonly used diagnostic procedure for spinal lesions. This meta-analysis aims to investigate its diagnostic performance and complications, as well as factors influencing outcomes. Methods A systematic review of the literature was performed to identify studies reporting outcomes of CT-guided biopsies for spinal lesions. Diagnostic yield (ie, the rate of procedures resulting in a specific pathological diagnosis) and diagnostic accuracy (ie, the rate of procedures resulting in the correct diagnosis) were the primary outcomes of interest. Complications following biopsy procedures were also included. Results Thirty-nine studies with 3917 patients undergoing 4181 procedures were included. Diagnostic yield per procedure was 91% (95% CI 88% to 94%) among 3598 procedures. The most common reason for non-diagnostic biopsies was inadequacy of sample. No difference in diagnostic yield between different locations and between lytic, sclerotic, and mixed lesions was found. Diagnostic yield did not differ between procedures using ≤13G and ≥14G needles. Diagnostic accuracy per procedure was 86% (95% CI 82% to 89%) among 3054 procedures. Diagnostic accuracy among 2426 procedures that yielded a diagnosis was 94% (95% CI 92% to 96%). Complication rate was 1% (95% CI 0.4% to 1.9%) among 3357 procedures. Transient pain and minor hematoma were the most common complications encountered. Conclusion In our meta-analysis of 39 studies reporting diagnostic performance and complications of CT-guided biopsy, we found a diagnostic yield of 91% and diagnostic accuracy of 86% with a complication rate of 1%. Diagnostic yield did not differ between different locations, between lytic, sclerotic and mixed lesions, and between wide- and thin-bore needles.