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Yu A, Truong Q, Whitfield K, Hale A, Taing MW, Barker N, D'Emden M. Impact of preoperative haemoglobin A 1c levels on postoperative outcomes in adults undergoing major noncardiac surgery: A systematic review. Diabet Med 2024:e15380. [PMID: 38853752 DOI: 10.1111/dme.15380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Accepted: 05/28/2024] [Indexed: 06/11/2024]
Abstract
AIMS Diabetes is known to increase morbidity and mortality after major surgery. However, literature is conflicting on whether elevated preoperative haemoglobin A1c (HbA1c) levels are associated with worse outcomes following major noncardiac surgery. We aimed to investigate the effect of incremental preoperative HbA1c levels on postoperative outcomes in adults who had undergone major noncardiac surgery. METHODS We systematically searched PubMed, EMBASE and the Cochrane Library databases for eligible studies published between January 2012 and July 2023. Randomised controlled trials and observational studies (cohort and case-control studies) which measured HbA1c within 6 months before surgery and compared outcomes between at least three incremental subgroups or analysed HbA1c as a continuous variable were included. The systematic review protocol was registered with PROSPERO (CRD42023391946). RESULTS Twenty observational studies investigating outcomes across multiple surgical types were included. Higher preoperative HbA1c levels were associated with increased odds of overall postoperative complications, postoperative acute kidney injury, anastomotic leak, surgical site infections and increased length of stay. Each 1% increase in preoperative HbA1c was associated with increased odds of these complications. No association with reoperations and 30-day mortality was identified. The literature was highly variable with respect to composite major complications, perioperative cardiovascular events, hospital readmissions, postoperative pneumonia and systemic thromboembolism. CONCLUSIONS Current evidence suggested that higher preoperative HbA1c levels were associated with increased odds of postoperative complications and extended length of stay in adults undergoing major noncardiac surgery. Further high-quality studies would be needed to quantify the risks posed and determine whether early intervention improves outcomes.
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Affiliation(s)
- Abby Yu
- School of Pharmacy, The University of Queensland, Woolloongabba, Queensland, Australia
- Department of Pharmacy, Royal Brisbane and Women's Hospital, Herston, Queensland, Australia
| | - Quynh Truong
- Department of Endocrinology, Cairns Base Hospital, Cairns, Queensland, Australia
| | - Karen Whitfield
- School of Pharmacy, The University of Queensland, Woolloongabba, Queensland, Australia
| | - Andrew Hale
- School of Clinical Sciences, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Meng-Wong Taing
- School of Pharmacy, The University of Queensland, Woolloongabba, Queensland, Australia
| | - Natalie Barker
- Herston Health Sciences Library, The University of Queensland, Herston, Queensland, Australia
| | - Michael D'Emden
- School of Medicine, The University of Queensland, Herston, Queensland, Australia
- Department of Endocrinology and Diabetes, Royal Brisbane and Women's Hospital, Herston, Queensland, Australia
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Chiu AK, Amatya B, Amin I, Ratanpal AS, Lutz AB, Shear BM, Ye IB, Fencel R, Bivona LJ, Koh EY, Jauregui JJ, Ludwig SC, Cavanaugh DL. Superinfections of the Spine: A Single-Institution Experience. J Clin Med 2024; 13:2739. [PMID: 38792281 PMCID: PMC11122442 DOI: 10.3390/jcm13102739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 04/23/2024] [Accepted: 04/30/2024] [Indexed: 05/26/2024] Open
Abstract
Background/Objectives: A superinfection occurs when a new, secondary organism colonizes an existing infection. Spine infections are associated with high patient morbidity and sometimes require multiple irrigations and debridements (I&Ds). When multiple I&Ds are required, the risk of complications increases. The purpose of this study was to report our experience with spine superinfections and determine which patients are typically affected. Methods: A retrospective case series of spine superinfections and a retrospective case-control analysis were conducted. Data were collected manually from electronic medical records. Spine I&Ds were identified. Groups were created for patients who had multiple I&Ds for (1) a recurrence of the same causative organism or (2) a superinfection with a novel organism. Preoperative demographic, clinical, and microbiologic data were compared between these two outcomes. A case series of superinfections with descriptive data was constructed. Lastly, two illustrative cases were provided in a narrative format. Results: A total of 92 patients were included in this analysis. Superinfections occurred after 6 out of the 92 (7%) initial I&Ds and were responsible for 6 out of the 24 (25%) repeat I&Ds. The preoperative erythrocyte sedimentation rate (ESR) and C-reactive protein (CRP) of the patients with a superinfection were significantly lower than those in the control group (p = 0.022 and p = 0.032). Otherwise, the observed differences in the preoperative variables were not statistically different. In the six cases of superinfection, the presence of high-risk comorbidities, a history of substance abuse, or a lack of social support were commonly observed. The superinfecting organisms included Candida, Pseudomonas, Serratia, Klebsiella, Enterobacter, and Staphylococcus species. Conclusions: Superinfections are a devastating complication requiring reoperation after initial spine I&D. Awareness of the possibility of superinfection and common patient archetypes can be helpful for clinicians and care teams. Future work is needed to examine how to identify, help predict, and prevent spine superinfections.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - Steven C. Ludwig
- Department of Orthopaedics, University of Maryland School of Medicine, 110 S. Paca Street, 6th Floor Suite 300, Baltimore, MD 21201, USA
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Akosman I, Kumar N, Mortenson R, Lans A, De La Garza Ramos R, Eleswarapu A, Yassari R, Fourman MS. Racial Differences in Perioperative Complications, Readmissions, and Mortalities After Elective Spine Surgery in the United States: A Systematic Review Using AI-Assisted Bibliometric Analysis. Global Spine J 2024; 14:750-766. [PMID: 37363960 PMCID: PMC10802512 DOI: 10.1177/21925682231186759] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/28/2023] Open
Abstract
STUDY DESIGN Systematic Review and Meta-analysis. OBJECTIVES To evaluate the impact of race on post-operative outcomes and complications following elective spine surgery in the United States. METHODS PUBMED, MEDLINE(R), ERIC, EMBASE, and SCOPUS were searched for studies documenting peri-operative events for White and African American (AA) patients following elective spine surgery. Pooled odds ratios were calculated for each 90-day outcome and meta-analyses were performed for 4 peri-operative events and 7 complication categories. Sub-analyses were performed for each outcome on single institution (SI) studies and works that included <100,000 patients. RESULTS 53 studies (5,589,069 patients, 9.8% AA) were included. Eleven included >100,000 patients. AA patients had increased rates of 90-day readmission (OR 1.33, P = .0001), non-routine discharge (OR 1.71, P = .0001), and mortality (OR 1.66, P = .0003), but not re-operation (OR 1.16, P = .1354). AA patients were more likely to have wound-related complications (OR 1.47, P = .0001) or medical complications (OR 1.35, P = .0006), specifically cardiovascular (OR 1.33, P = .0126), deep vein thrombosis/pulmonary embolism (DVT/PE) (OR 2.22, P = .0188) and genitourinary events (OR 1.17, P = .0343). SI studies could only detect racial differences in re-admissions and non-routine discharges. Studies with <100,000 patients replicated the above findings but found no differences in cardiovascular complications. Disparities in mortality were only detected when all studies were included. CONCLUSIONS AA patients faced a greater risk of morbidity across several distinct categories of peri-operative events. SI studies can be underpowered to detect more granular complication types (genitourinary, DVT/PE). Rare events, such as mortality, require larger sample sizes to identify significant racial disparities.
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Affiliation(s)
| | - Neerav Kumar
- Weill Cornell School of Medicine, New York, NY, USA
| | | | - Amanda Lans
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, MA, USA
| | | | - Ananth Eleswarapu
- Department of Orthopaedic Surgery, Montefiore Medical Center, Bronx, NY, USA
| | - Reza Yassari
- Department of Orthopaedic Surgery, Montefiore Medical Center, Bronx, NY, USA
| | - Mitchell S. Fourman
- Department of Orthopaedic Surgery, Montefiore Medical Center, Bronx, NY, USA
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Li JX, Hsu TJ, Hsu SB, Lin YH. Strong association of lumbar disk herniation with diabetes mellitus: a 12-year nationwide retrospective cohort study. Front Endocrinol (Lausanne) 2023; 14:1260566. [PMID: 38027195 PMCID: PMC10652879 DOI: 10.3389/fendo.2023.1260566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 10/19/2023] [Indexed: 12/01/2023] Open
Abstract
Background Despite reports on the association between diabetes mellitus (DM) and lumbar disk herniation (LDH), large-scale, nationwide studies exploring this relationship are lacking. We aimed to examine the profiles of DM in individuals with LDH and explore the potential mechanisms underlying the development of these disorders. Methods This retrospective, population-based study was conducted between 2008 and 2019 using data from the National Health Insurance (NHI) research database in Taiwan. The primary outcome was the date of initial LDH diagnosis, death, withdrawal from the NHI program, or end of the study period. Results In total, 2,662,930 individuals with and 16,922,546 individuals without DM were included in this study; 719,068 matched pairs were established following propensity score matching (1:1 ratio) for sex, age, comorbidities, smoking, alcohol consumption, antihyperglycemic medications, and index year. The adjusted risk for developing LDH was 2.33-fold (95% confidence interval: 2.29-2.37; P<0.001), age-stratified analysis revealed a significantly greater risk of LDH in every age group, and both males and females were approximately twice as likely to develop LDH in the DM compared with non-DM cohort. Individuals with DM and comorbidities had a significantly higher risk of developing LDH than those without, and the serial models yielded consistent results. Treatment with metformin, sulfonylureas, meglitinides, thiazolidinediones, dipeptidyl peptidase-4 inhibitors, or alpha-glucosidase inhibitors was associated with a more than 4-fold increased risk of LDH in the DM cohort. DM was strongly associated with the long-term development of LDH; over the 12-year follow-up period, the cumulative risk of LDH was significantly higher in patients with than without DM (log-rank P<0.001). Conclusion DM is associated with an increased risk of LDH, and advanced DM may indicate a higher risk of LDH.
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Affiliation(s)
- Jing-Xing Li
- Department of Internal Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine, China Medical University, Taichung, Taiwan
- Graduate Institute of Clinical Laboratory Sciences and Medical Biotechnology, National Taiwan University, Taipei, Taiwan
| | - Tzu-Ju Hsu
- Management Office for Health Data, China Medical University Hospital, Taichung, Taiwan
| | - Shu-Bai Hsu
- College of Medicine, China Medical University, Taichung, Taiwan
- Department of Nursing, China Medical University Hospital, Taichung, Taiwan
| | - Yu-Hsiang Lin
- School of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Neurosurgery, China Medical University Hospital, Taichung, Taiwan
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Knoedler S, Matar DY, Friedrich S, Knoedler L, Haug V, Hundeshagen G, Kauke-Navarro M, Kneser U, Pomahac B, Orgill DP, Panayi AC. The surgical patient of yesterday, today, and tomorrow-a time-trend analysis based on a cohort of 8.7 million surgical patients. Int J Surg 2023; 109:2631-2640. [PMID: 37788019 PMCID: PMC10498871 DOI: 10.1097/js9.0000000000000511] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 05/14/2023] [Indexed: 10/04/2023]
Abstract
BACKGROUND Global healthcare delivery is challenged by the aging population and the increase in obesity and type 2 diabetes. The extent to which such trends affect the cohort of patients the authors surgically operate on remains to be elucidated. Comprising of 8.7 million surgical patients, the American College of Surgeons (ACS) National Surgical Quality Improvement Program (NSQIP) database can be analyzed to investigate the echo of general population dynamics and forecast future trends. MATERIAL AND METHODS The authors reviewed the ACS-NSQIP database (2008-2020) in its entirety, extracting patient age, BMI, and diabetes prevalence. Based on these data, the authors forecasted future trends up to 2030 using a drift model. RESULTS During the review period, median age increased by 3 years, and median BMI by 0.9 kg/m2. The proportion of patients with overweight, obesity class I, and class II rates increased. The prevalence of diabetes rose between 2008 (14.9%) and 2020 (15.3%). The authors forecast the median age in 2030 to reach 61.5 years and median BMI to climb to 29.8 kg/m2. Concerningly, in 2030, eight of ten surgical patients are projected to have a BMI above normal. Diabetes prevalence is projected to rise to 15.6% over the next decade. CONCLUSION General population trends echo in the field of surgery, with the surgical cohort aging at an alarmingly rapid rate and increasingly suffering from obesity and diabetes. These trends show no sign of abating without dedicated efforts and call for urgent measures and fundamental re-structuring for improved future surgical care.
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Affiliation(s)
- Samuel Knoedler
- Department of Plastic Surgery and Hand Surgery, Klinikum Rechts der Isar, Technical University of Munich, Munich
- Division of Plastic Surgery, Department of Surgery, Brigham and Women’s Hospital
| | - Dany Y. Matar
- Division of Plastic Surgery, Department of Surgery, Brigham and Women’s Hospital
| | - Sarah Friedrich
- Department of Mathematical Statistics and Artificial Intelligence in Medicine, University of Augsburg, Augsburg
| | - Leonard Knoedler
- Division of Plastic and Reconstructive Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Valentin Haug
- Department of Hand-, Plastic and Reconstructive Surgery, Burn Center, BG Trauma Center Ludwigshafen, University of Heidelberg, Ludwigshafen, Germany
- Division of Plastic Surgery, Department of Surgery, Brigham and Women’s Hospital
| | - Gabriel Hundeshagen
- Department of Hand-, Plastic and Reconstructive Surgery, Burn Center, BG Trauma Center Ludwigshafen, University of Heidelberg, Ludwigshafen, Germany
| | - Martin Kauke-Navarro
- Division of Plastic Surgery, Department of Surgery, Yale New Haven Hospital, Yale School of Medicine, New Haven, CT, USA
| | - Ulrich Kneser
- Department of Hand-, Plastic and Reconstructive Surgery, Burn Center, BG Trauma Center Ludwigshafen, University of Heidelberg, Ludwigshafen, Germany
| | - Bohdan Pomahac
- Division of Plastic Surgery, Department of Surgery, Yale New Haven Hospital, Yale School of Medicine, New Haven, CT, USA
| | - Dennis P. Orgill
- Division of Plastic Surgery, Department of Surgery, Brigham and Women’s Hospital
| | - Adriana C. Panayi
- Department of Hand-, Plastic and Reconstructive Surgery, Burn Center, BG Trauma Center Ludwigshafen, University of Heidelberg, Ludwigshafen, Germany
- Division of Plastic Surgery, Department of Surgery, Brigham and Women’s Hospital
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Early Experience With an Endocrinology Preoperative Fast-Track Program for Optimizing Spine Surgery Candidates With Poorly Controlled Diabetes Mellitus. J Am Acad Orthop Surg 2023; 31:458-462. [PMID: 36827207 DOI: 10.5435/jaaos-d-22-00653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 01/20/2023] [Indexed: 02/25/2023] Open
Abstract
INTRODUCTION Previous studies demonstrated an increase in adverse outcomes for patients undergoing elective surgeries with poorly controlled diabetes mellitus. At a large, tertiary-care spine center with a notable population of patients with poorly controlled diabetes, an Endocrinology Fast-Track (EFT) program was developed to improve patient optimization before elective spine surgery. The purpose of this study was to report our early experience. METHODS Seventy-five patients who were scheduled for elective spine surgery were noted to have Hgb A1c > 7 on preoperative evaluation. Thirty-two patients accepted referral to the EFT program and 43 declined (non-EFT). Mean preoperative Hgb A1c was similar between groups (EFT: 8.79 versus non-EFT: 9.26, P = 0.221). The Fast-Track program included counseling, education, and medical management. RESULTS Patients in the two groups were similar in number of females (EFT: 17 versus non-EFT: 17, P = 0.348), age (EFT: 57.7 versus non-EFT: 60.6, P = 0.280), and body mass index (EFT: 34.6 versus non-EFT: 33.0, P = 0.341). A smaller number of smokers were there in the EFT group (1) compared with the non-EFT group (15, P = 0.003). The proportion of patients on insulin (EFT: 19 versus non-EFT: 23, P = 0.814) and oral hypoglycemics (EFT: 29 versus non-EFT: 39, P = 0.983) was similar between the two groups. Surgical clearance for patients with a documented preoperative Hgb A1c of < 7 or equivalent fructosamine level was significantly better in the Fast-Track group compared with the non-Fast-Track group (91% versus 42%, P = 0.000). Although most patients who declined the Fast-Track program did not obtain clearance for surgery, mean Hgb A1c was improved at the latest follow-up in both groups for those who obtained surgical clearance (7.10 versus 6.78, P = 0.470). DISCUSSION A novel EFT program was successful in obtaining acceptable blood glucose control in patients recommended for spine surgery who had poorly controlled diabetes mellitus on preoperative evaluation. The improved blood glucose control was maintained at the latest follow-up.
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Bai Q, Wang Y, Zhai J, Wu J, Zhang Y, Zhao Y. Current understanding of tandem spinal stenosis: epidemiology, diagnosis, and surgical strategy. EFORT Open Rev 2022; 7:587-598. [PMID: 35924651 PMCID: PMC9458946 DOI: 10.1530/eor-22-0016] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Tandem spinal stenosis (TSS) is defined as the concomitant occurrence of stenosis in at least two or more distinct regions (cervical, thoracic, or lumbar) of the spine and may present with a constellation of signs and symptoms. It has four subtypes, including cervico-lumbar, cervico-thoracic, thoraco-lumbar, and cervico-thoraco-lumbar TSS. The prevalence of TSS varies depending on the different subtypes and cohorts. The main aetiologies of TSS are spinal degenerative changes and heterotopic ossification, and patients with developmental spinal stenosis, ligament ossification, and spinal stenosis at any region are at an increased risk of developing TSS. The diagnosis of TSS is challenging. The clinical presentation of TSS could be complex, concealed, or severe, and these features may be confusing to clinicians, resulting in an incomplete or delayed diagnosis. Additionally, a consolidated diagnostic criterion for TSS is urgently required to improve consistency across studies and form a basis for establishing treatment guidelines. The optimal treatment option for TSS is still under debate; areas of controversies include choice of the decompression range, choice between simultaneous or staged surgical patterns, and the order of the surgeries. The present study reviews publications on TSS, consolidates current awareness on prevalence, aetiologies, potential risk factors, diagnostic dilemmas and criteria, and surgical strategies based on TSS subtypes. This is the first review to include thoracic spinal stenosis as a candidate disorder in TSS and aims at providing the readers with a comprehensive overview of TSS.
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Affiliation(s)
- Qiushi Bai
- Department of Orthopaedics, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Yuanyi Wang
- Department of Spinal Surgery, The First Hospital of Jilin University, Changchun, China
| | - Jiliang Zhai
- Department of Orthopaedics, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Jigong Wu
- Chinese People's Liberation Army Strategic Support Force Characteristic Medical Center, Beijing, China
| | - Yan Zhang
- Department of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Yu Zhao
- Department of Orthopaedics, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
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The impact of diabetes on postoperative outcomes following spine surgery: A meta-analysis of 40 cohort studies with 2.9 million participants. Int J Surg 2022; 104:106789. [PMID: 35918006 DOI: 10.1016/j.ijsu.2022.106789] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 07/06/2022] [Accepted: 07/10/2022] [Indexed: 11/22/2022]
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Yamamoto T, Okada E, Michikawa T, Yoshii T, Yamada T, Watanabe K, Katsumi K, Hiyama A, Watanabe M, Nakagawa Y, Okada M, Endo T, Shiraishi Y, Takeuchi K, Matsunaga S, Maruo K, Sakai K, Kobayashi S, Ohba T, Wada K, Ohya J, Mori K, Tsushima M, Nishimura H, Tsuji T, Koda M, Okawa A, Yamazaki M, Matsumoto M, Watanabe K. The impact of diabetes mellitus on spinal fracture with diffuse idiopathic skeletal hyperostosis: A multicenter retrospective study. J Orthop Sci 2022; 27:582-587. [PMID: 34162513 DOI: 10.1016/j.jos.2021.03.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Revised: 02/09/2021] [Accepted: 03/03/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND Patients with diffuse idiopathic skeletal hyperostosis (DISH) are susceptible to spinal column injuries with neurological deterioration. Previous studies indicated that the prevalence of diabetes mellitus (DM) in patients with DISH was higher than that in patients without DISH. This study investigates the impact of DM on surgical outcomes for spinal fractures in patients with DISH. METHODS We retrospectively evaluated 177 spinal fractures in patients with DISH (132 men and 45 women; mean age, 75 ± 10 years) who underwent surgery from a multicenter database. The subjects were classified into two groups according to the presence of DM. Perioperative complications, neurological status by Frankel grade, mortality rate, and status of surgical site infection (SSI) were compared between the two groups. RESULTS DM was present in 28.2% (50/177) of the patients. The proportion of men was significantly higher in the DM group (DM group: 86.0% vs. non-DM group: 70.1%) (p = 0.03). The overall complication rate was 22.0% in the DM group and 19.7% in the non-DM group (p = 0.60). Poisson regression model revealed that SSI was significantly associated with DM (DM group: 10.0% vs. non-DM group: 2.4%, Relative risk: 4.5) (p = 0.048). Change in neurological status, mortality rate, instrumentation failure, and nonunion were similar between both groups. HbA1c and fasting blood glucose level (SSI group: 7.2% ± 1.2%, 201 ± 67 mg/dL vs. non-SSI group: 6.6% ± 1.1%, 167 ± 47 mg/dL) tended to be higher in patients with SSI; however, there was no significant difference. CONCLUSIONS In spinal fracture in patients with DISH, although DM was an associated factor for SSI with a relative risk of 4.5, DM did not negatively impact neurological recovery. Perioperative glycemic control may be useful for preventing SSI because fasting blood glucose level was high in patients with SSI.
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Affiliation(s)
- Tatsuya Yamamoto
- Dept. of Orthopaedic Surgery, Keio University, Tokyo, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Eijiro Okada
- Dept. of Orthopaedic Surgery, Keio University, Tokyo, Japan; Dept. of Orthopaedic Surgery, Saiseikai Central Hospital, Tokyo, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | | | - Toshitaka Yoshii
- Dept. of Orthopaedic Surgery, Tokyo Medical and Dental University, Tokyo, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Tsuyoshi Yamada
- Dept. of Orthopaedic Surgery, Tokyo Medical and Dental University, Tokyo, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Kei Watanabe
- Dept. of Orthopaedic Surgery, Niigata University Medical and Dental General Hospital, Niigata, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Keiichi Katsumi
- Dept. of Orthopaedic Surgery, Niigata University Medical and Dental General Hospital, Niigata, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Akihiko Hiyama
- Dept. of Orthopaedic Surgery, Surgical Science, Tokai University School of Medicine, Kanagawa, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Masahiko Watanabe
- Dept. of Orthopaedic Surgery, Surgical Science, Tokai University School of Medicine, Kanagawa, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Yukihiro Nakagawa
- Dept. of Orthopaedic Surgery, Wakayama Medical University, Wakayama, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Motohiro Okada
- Dept. of Orthopaedic Surgery, Wakayama Medical University, Wakayama, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Teruaki Endo
- Dept. of Orthopaedic Surgery, Jichi Medical University, Tochigi, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Yasuyuki Shiraishi
- Dept. of Orthopaedic Surgery, Jichi Medical University, Tochigi, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Kazuhiro Takeuchi
- Dept. of Orthopaedic Surgery, National Hospital Organization Okayama Medical Center, Okayama, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Shunji Matsunaga
- Dept. of Orthopaedic Surgery, Imakiire General Hospital, Kagoshima, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Keishi Maruo
- Dept. of Orthopaedic Surgery, Hyogo College of Medicine, Hyogo, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Kenichiro Sakai
- Dept. of Orthopaedic Surgery, Saiseikai Kawaguchi General Hospital, Saitama, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Sho Kobayashi
- Dept. of Orthopaedic Surgery, Hamamatsu University School of Medicine, Shizuoka, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Tetsuro Ohba
- Dept. of Orthopaedic Surgery, University of Yamanashi, Yamanashi, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Kanichiro Wada
- Dept. of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine, Aomori, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Junichi Ohya
- Dept. of Orthopaedic Surgery, The University of Tokyo, Tokyo, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Kanji Mori
- Dept. of Orthopaedic Surgery, Shiga University of Medical Science, Shiga, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Mikito Tsushima
- Dept. of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, Aichi, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Hirosuke Nishimura
- Dept. of Orthopaedic Surgery, Tokyo Medical University, Tokyo, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Takashi Tsuji
- Dept. of Orthopaedic Surgery, Fujita Health University, Aichi, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Masao Koda
- Dept. of Orthopaedic Surgery, University of Tsukuba, Ibaraki, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Atsushi Okawa
- Dept. of Orthopaedic Surgery, Tokyo Medical and Dental University, Tokyo, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Masashi Yamazaki
- Dept. of Orthopaedic Surgery, University of Tsukuba, Ibaraki, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Morio Matsumoto
- Dept. of Orthopaedic Surgery, Keio University, Tokyo, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan
| | - Kota Watanabe
- Dept. of Orthopaedic Surgery, Keio University, Tokyo, Japan; Japanese Organization of the Study for Ossification of Spinal Ligament (JOSL), Tokyo, Japan.
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10
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Halicka M, Duarte R, Catherall S, Maden M, Coetsee M, Wilby M, Brown C. Predictors of Pain and Disability Outcomes Following Spinal Surgery for Chronic Low Back and Radicular Pain: A Systematic Review. Clin J Pain 2022; 38:368-380. [PMID: 35413024 DOI: 10.1097/ajp.0000000000001033] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 03/01/2022] [Indexed: 11/26/2022]
Abstract
OBJECTIVES Success rates of spinal surgeries to treat chronic back pain are highly variable and useable prognostic indicators are lacking. We aimed to identify and evaluate preoperative predictors of pain and disability after spinal surgery for chronic low back/leg pain. METHODS Electronic database (01/1984-03/2021) and reference searches identified 2622 unique citations. Eligible studies included adults with chronic low back/leg pain lasting ≥3 months undergoing first elective lumbar spine surgery, and outcomes defined as change in pain (primary)/disability (secondary) after ≥3 months. We included 21 reports (6899 participants), 7 were judged to have low and 14 high risks of bias. We performed narrative synthesis and determined the quality of evidence (QoE). RESULTS Better pain outcomes were associated with younger age, higher education, and no spinal stenosis (low QoE); lower preoperative pain, fewer comorbidities, lower pain catastrophizing, anxiety and depression (very low QoE); but not with symptom duration (moderate QoE), other sociodemographic factors (low QoE), disability, or sensory testing (very low QoE). More favorable disability outcomes were associated with preoperative sensory loss (moderate QoE); lower job-related resignation and neuroticism (very low QoE); but not with socioeconomic factors, comorbidities (low QoE), demographics, pain, or pain-related psychological factors (very low QoE). DISCUSSION In conclusion, absence of spinal stenosis potentially predicts greater pain relief and preoperative sensory loss likely predicts reduction in disability. Overall, QoE for most identified associations was low/very low.
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Affiliation(s)
| | - Rui Duarte
- Liverpool Reviews & Implementation Group (LRiG)
| | | | | | | | - Martin Wilby
- Department of Neurosurgery, The Walton Centre NHS Foundation Trust, Liverpool, UK
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11
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Khan IS, Huang E, Maeder-York W, Yen RW, Simmons NE, Ball PA, Ryken TC. Racial Disparities in Outcomes After Spine Surgery: A Systematic Review and Meta-Analysis. World Neurosurg 2021; 157:e232-e244. [PMID: 34634504 DOI: 10.1016/j.wneu.2021.09.140] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 09/29/2021] [Accepted: 09/30/2021] [Indexed: 11/29/2022]
Abstract
OBJECTIVE Racial disparities are a major issue in health care but the overall extent of the issue in spinal surgery outcomes is unclear. We conducted a systematic review/meta-analysis of disparities in outcomes among patients belonging to different racial groups who had undergone surgery for degenerative spine disease. METHODS We searched Ovid MEDLINE, Scopus, Cochrane Review Database, and ClinicalTrials.gov from inception to January 20, 2021 for relevant articles assessing outcomes after spine surgery stratified by race. We included studies that compared outcomes after spine surgery for degenerative disease among different racial groups. RESULTS We found 30 studies that met our inclusion criteria (28 articles and 2 published abstracts). We included data from 20 cohort studies in our meta-analysis (3,501,830 patients), which were assessed to have a high risk of observation/selection bias. Black patients had a 55% higher risk of dying after spine surgery compared with white patients (relative risk [RR], 1.55, 95% confidence interval [CI], 1.28-1.87; I2 = 70%). Similarly, black patients had a longer length of stay (mean difference, 0.93 days; 95% CI, 0.75-1.10; I2 = 73%), and higher risk of nonhome discharge (RR, 1.63; 95% CI, 1.47-1.81; I2 = 89%), and 30-day readmission (RR, 1.45; 95% CI, 1.03-2.04; I2 = 96%). No significant difference was noted in the pooled analyses for complication or reoperation rates. CONCLUSIONS Black patients have a significantly higher risk of unfavorable outcomes after spine surgery compared with white patients. Further work in understanding the reasons for these disparities will help develop strategies to narrow the gap among the racial groups.
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Affiliation(s)
- Imad S Khan
- Section of Neurosurgery, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire, USA; Dartmouth Institute for Health Policy and Clinical Practice, Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire, USA.
| | - Elijah Huang
- Dartmouth Institute for Health Policy and Clinical Practice, Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire, USA
| | - Walker Maeder-York
- Dartmouth Institute for Health Policy and Clinical Practice, Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire, USA
| | - Renata W Yen
- Dartmouth Institute for Health Policy and Clinical Practice, Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire, USA
| | - Nathan E Simmons
- Section of Neurosurgery, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire, USA
| | - Perry A Ball
- Section of Neurosurgery, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire, USA
| | - Timothy C Ryken
- Section of Neurosurgery, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire, USA
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12
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Licina A, Silvers A, Laughlin H, Russell J, Wan C. Pathway for enhanced recovery after spinal surgery-a systematic review of evidence for use of individual components. BMC Anesthesiol 2021; 21:74. [PMID: 33691620 PMCID: PMC7944908 DOI: 10.1186/s12871-021-01281-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 02/16/2021] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Enhanced recovery in spinal surgery (ERSS) has shown promising improvements in clinical and economical outcomes. We have proposed an ERSS pathway based on available evidence. We aimed to delineate the clinical efficacy of individual pathway components in ERSS through a systematic narrative review. METHODS We included systematic reviews and meta-analysis, randomized controlled trials, non-randomized controlled studies, and observational studies in adults and pediatric patients evaluating any one of the 22 pre-defined components. Our primary outcomes included all-cause mortality, morbidity outcomes (e.g., pulmonary, cardiac, renal, surgical complications), patient-reported outcomes and experiences (e.g., pain, quality of care experience), and health services outcomes (e.g., length of stay and costs). Following databases (1990 onwards) were searched: MEDLINE, EMBASE, and Cochrane Library (Cochrane Database of Systematic Reviews and CENTRAL). Two authors screened the citations, full-text articles, and extracted data. A narrative synthesis was provided. We constructed Evidence Profile (EP) tables for each component of the pathway, where appropriate information was available. Due to clinical and methodological heterogeneity, we did not conduct a meta-analyses. GRADE system was used to classify confidence in cumulative evidence for each component of the pathway. RESULTS We identified 5423 relevant studies excluding duplicates as relating to the 22 pre-defined components of enhanced recovery in spinal surgery. We included 664 studies in the systematic review. We identified specific evidence within the context of spinal surgery for 14/22 proposed components. Evidence was summarized in EP tables where suitable. We performed thematic synthesis without EP for 6/22 elements. We identified appropriate societal guidelines for the remainder of the components. CONCLUSIONS We identified the following components with high quality of evidence as per GRADE system: pre-emptive analgesia, peri-operative blood conservation (antifibrinolytic use), surgical site preparation and antibiotic prophylaxis. There was moderate level of evidence for implementation of prehabilitation, minimally invasive surgery, multimodal perioperative analgesia, intravenous lignocaine and ketamine use as well as early mobilization. This review allows for the first formalized evidence-based unified protocol in the field of ERSS. Further studies validating the multimodal ERSS framework are essential to guide the future evolution of care in patients undergoing spinal surgery.
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Affiliation(s)
- Ana Licina
- Austin Health, 145 Studley Road, Heidelberg, Victoria 3084 Australia
| | - Andrew Silvers
- Monash Health, Clayton, Australia, Faculty of Medicine, Nursing and Health Science, Monash University, Melbourne, Victoria Australia
| | | | - Jeremy Russell
- Department of Neurosurgery, Austin Health, Melbourne, Victoria, Australia
| | - Crispin Wan
- Royal Hobart Hospital, Hobart, Tasmania, Australia
- St Vincent’s Hospital, Melbourne, Australia
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13
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Wang TY, Price M, Mehta VA, Bergin SM, Sankey EW, Foster N, Erickson M, Gupta DK, Gottfried ON, Karikari IO, Than KD, Goodwin CR, Shaffrey CI, Abd-El-Barr MM. Preoperative optimization for patients undergoing elective spine surgery. Clin Neurol Neurosurg 2021; 202:106445. [PMID: 33454498 DOI: 10.1016/j.clineuro.2020.106445] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 09/21/2020] [Accepted: 12/17/2020] [Indexed: 01/16/2023]
Affiliation(s)
- Timothy Y Wang
- Department of Neurosurgery, Division of Spine, Duke University Medical Center, Durham, NC, USA
| | - Meghan Price
- Department of Neurosurgery, Division of Spine, Duke University Medical Center, Durham, NC, USA
| | - Vikram A Mehta
- Department of Neurosurgery, Division of Spine, Duke University Medical Center, Durham, NC, USA
| | - Stephen M Bergin
- Department of Neurosurgery, Division of Spine, Duke University Medical Center, Durham, NC, USA
| | - Eric W Sankey
- Department of Neurosurgery, Division of Spine, Duke University Medical Center, Durham, NC, USA
| | - Norah Foster
- Department of Orthopedic Surgery, Division of Spine, Duke University Medical Center, Durham, NC, USA
| | - Melissa Erickson
- Department of Orthopedic Surgery, Division of Spine, Duke University Medical Center, Durham, NC, USA
| | - Dhanesh K Gupta
- Department of Anesthesiology, Division of Neuroanesthesiology, Duke University Medical Center, Durham, NC, USA
| | - Oren N Gottfried
- Department of Neurosurgery, Division of Spine, Duke University Medical Center, Durham, NC, USA
| | - Isaac O Karikari
- Department of Neurosurgery, Division of Spine, Duke University Medical Center, Durham, NC, USA
| | - Khoi D Than
- Department of Neurosurgery, Division of Spine, Duke University Medical Center, Durham, NC, USA
| | - C Rory Goodwin
- Department of Neurosurgery, Division of Spine, Duke University Medical Center, Durham, NC, USA
| | - Christopher I Shaffrey
- Department of Neurosurgery, Division of Spine, Duke University Medical Center, Durham, NC, USA
| | - Muhammad M Abd-El-Barr
- Department of Neurosurgery, Division of Spine, Duke University Medical Center, Durham, NC, USA.
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14
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Khorsand B, Acri TM, Do A, Femino JE, Petersen E, Fredericks DC, Salem AK. A Multi-Functional Implant Induces Bone Formation in a Diabetic Model. Adv Healthc Mater 2020; 9:e2000770. [PMID: 32815306 DOI: 10.1002/adhm.202000770] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 07/15/2020] [Indexed: 12/21/2022]
Abstract
Patients with diabetes mellitus (DM) have defective healing of bone fractures. It was previously shown that nonviral gene delivery of plasmid DNA (pDNA) that independently encodes bone morphogenetic protein-2 (BMP-2) and fibroblast growth factor-2 (FGF-2), acts synergistically to promote bone regeneration in a DM animal model. Additionally, both insulin (INS) and the hormonally active form of vitamin D3, 1α,25-dihydroxyvitamin D3 (1α,25(OH)2 D3 ) (VD3) have independently been shown to play key roles in regulating bone fracture healing in DM patients. However, these individual therapies fail to adequately stimulate bone regeneration, illustrating a need for novel treatment of bone fractures in diabetic patients. Here, the ability of local delivery of INS and VD3 along with BMP-2 and FGF-2 genes is investigated to promote bone formation ectopically in Type-2 diabetic rats. A composite consisting of VD3 and INS is developed that contains poly(lactic-co-glycolic acid) microparticles (MPs) embedded in a fibrin gel surrounded by a collagen matrix that is permeated with polyethylenimine (PEI)-(pBMP-2+pFGF-2) nanoplexes. Using a submuscular osteoinduction model, it is demonstrated that local delivery of INS, VD3, and PEI-(pBMP-2+pFGF-2) significantly improves bone generation compared to other treatments, thusimplicating this approach as a method to promote bone regeneration in DM patients with bone fractures.
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Affiliation(s)
- Behnoush Khorsand
- Department of Pharmaceutical Sciences and Experimental Therapeutics University of Iowa College of Pharmacy Iowa City IA 52242 USA
| | - Timothy M. Acri
- Department of Pharmaceutical Sciences and Experimental Therapeutics University of Iowa College of Pharmacy Iowa City IA 52242 USA
| | - Anh‐Vu Do
- Department of Pharmaceutical Sciences and Experimental Therapeutics University of Iowa College of Pharmacy Iowa City IA 52242 USA
| | - John E. Femino
- Department of Orthopedics and Rehabilitation University of Iowa Iowa City IA 52242 USA
| | - Emily Petersen
- Department of Orthopedics and Rehabilitation University of Iowa Iowa City IA 52242 USA
| | - Douglas C. Fredericks
- Department of Orthopedics and Rehabilitation University of Iowa Iowa City IA 52242 USA
| | - Aliasger K. Salem
- Department of Pharmaceutical Sciences and Experimental Therapeutics University of Iowa College of Pharmacy Iowa City IA 52242 USA
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15
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Impact of obesity on restoration of sagittal balance and clinical efficacy after posterior lumbar interbody fusion. J Clin Neurosci 2019; 69:170-174. [DOI: 10.1016/j.jocn.2019.07.074] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 06/11/2019] [Accepted: 07/29/2019] [Indexed: 01/30/2023]
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Ma CM, Liu Q, Li ML, Ji MJ, Zhang JD, Zhang BH, Yin FZ. The Effects of Type 2 Diabetes and Postoperative Pneumonia on the Mortality in Inpatients with Surgery. Diabetes Metab Syndr Obes 2019; 12:2507-2513. [PMID: 31819576 PMCID: PMC6890188 DOI: 10.2147/dmso.s232039] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2019] [Accepted: 11/19/2019] [Indexed: 01/19/2023] Open
Abstract
OBJECTIVE The aim of the study was to explore the relationship between type 2 diabetes (T2DM) and postoperative pneumonia, and the effects of T2DM and postoperative pneumonia on the mortality in inpatients with surgery. METHODS A retrospective study was conducted on 43,174 inpatients with surgery in The First Hospital of Qinhuangdao. These patients were divided into four groups according to T2DM and postoperative pneumonia, Group A subjects without T2DM and postoperative pneumonia, Group B subjects with T2DM only, Group C subjects with postoperative pneumonia only and Group D subjects with T2DM and postoperative pneumonia. In-hospital mortality was collected. RESULTS The incidences of postoperative pneumonia were higher in patients with T2DM than patients without T2DM (T2DM 3.2% vs Non-diabetes 1.7%, χ 2=36.219, P<0.001). The mortalities were 0.3% in Group A, 0.3% in Group B, 4.6% in Group C and 8.6% in Group D. In multiple logistic regression analysis, adjusted for sex, age, emergency admissions, coronary heart disease, heart failure, chronic kidney disease, hypoproteinemia, stroke and transient ischemic attack, the mortalities of Group C and Group D were 4.515 (95% CI: 2.779~7.336, P<0.001) times and 8.468 (95% CI: 3.567~20.099, P<0.001) times than the mortality of Group A. CONCLUSION T2DM is susceptible to postoperative pneumonia. The mortality increased in patients with postoperative pneumonia. When patients with T2DM and postoperative pneumonia at the same time, the mortality increased further. In T2DM patients with postoperative pneumonia, perioperative management should be improved for patient safety.
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Affiliation(s)
- Chun-ming Ma
- Department of Endocrinology, The First Hospital of Qinhuangdao, Qinhuangdao, Hebei066000, People’s Republic of China
| | - Qin Liu
- Department of Endocrinology, The First Hospital of Qinhuangdao, Qinhuangdao, Hebei066000, People’s Republic of China
| | - Ming-li Li
- Department of Endocrinology, The First Hospital of Qinhuangdao, Qinhuangdao, Hebei066000, People’s Republic of China
| | - Mei-jing Ji
- Department of Endocrinology, The First Hospital of Qinhuangdao, Qinhuangdao, Hebei066000, People’s Republic of China
| | - Jian-dong Zhang
- Department of Endocrinology, The First Hospital of Qinhuangdao, Qinhuangdao, Hebei066000, People’s Republic of China
| | - Bo-hua Zhang
- Department of Endocrinology, The First Hospital of Qinhuangdao, Qinhuangdao, Hebei066000, People’s Republic of China
| | - Fu-Zai Yin
- Department of Endocrinology, The First Hospital of Qinhuangdao, Qinhuangdao, Hebei066000, People’s Republic of China
- Correspondence: Fu-Zai Yin Department of Endocrinology, The First Hospital of Qinhuangdao, Qinhuangdao, Hebei066000, People’s Republic of ChinaTel +86-335-5908368Fax +86-335-3032042 Email
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