Yan Ma

Summary

Affiliation: Hospital for Special Surgery
Country: USA

Publications

  1. pmc Beyond repeated-measures analysis of variance: advanced statistical methods for the analysis of longitudinal data in anesthesia research
    Yan Ma
    Research Division, Hospital for Special Surgery, Weill Medical College of Cornell University, New York, NY 10021, USA
    Reg Anesth Pain Med 37:99-105. 2012
  2. pmc Comparative in-hospital morbidity and mortality after revision versus primary thoracic and lumbar spine fusion
    Yan Ma
    Department of Public Health, Hospital for Special Surgery, Weill Medical College of Cornell University, 535 East 70th St, New York, NY 10021, USA
    Spine J 10:881-9. 2010
  3. pmc Perioperative morbidity and mortality after anterior, posterior, and anterior/posterior spine fusion surgery
    Stavros G Memtsoudis
    Department of Anesthesiology, Hospital for Special Surgery, Weill Medical College of Cornell University, New York, NY 10021, USA
    Spine (Phila Pa 1976) 36:1867-77. 2011
  4. pmc Does limb preconditioning reduce pain after total knee arthroplasty? A randomized, double-blind study
    Stavros G Memtsoudis
    Department of Anesthesiology, Hospital for Special Surgery, Weill Medical College of Cornell University, 535 East 70th Street, New York, NY, 10021, USA
    Clin Orthop Relat Res 472:1467-74. 2014
  5. pmc Predictors for moderate to severe acute postoperative pain after total hip and knee replacement
    Spencer S Liu
    Department of Anesthesiology, Hospital for Special Surgery and Weill Cornell Medical College, 535 East 70th St, New York, NY 10021, USA
    Int Orthop 36:2261-7. 2012
  6. doi request reprint Trends in in-hospital major morbidity and mortality after total joint arthroplasty: United States 1998-2008
    Meghan Kirksey
    Department of Anesthesiology, New York Presbyterian Hospital Weill Cornell, New York, NY, USA
    Anesth Analg 115:321-7. 2012
  7. pmc Metabolic syndrome and lumbar spine fusion surgery: epidemiology and perioperative outcomes
    Stavros G Memtsoudis
    Department of Anesthesiology, Hospital for Special Surgery, New York, NY 10021, USA
    Spine (Phila Pa 1976) 37:989-95. 2012
  8. pmc Bilateral total knee arthroplasty: risk factors for major morbidity and mortality
    Stavros G Memtsoudis
    Department of Anesthesiology, Hospital for Special Surgery, Weill Cornell Medical College, New York, NY, USA
    Anesth Analg 113:784-90. 2011
  9. pmc Epidemiology and risk factors for perioperative mortality after total hip and knee arthroplasty
    Stavros G Memtsoudis
    Department of Anesthesiology, Hospital for Special Surgery, New York, 10021 NY, USA
    J Orthop Res 30:1811-21. 2012
  10. pmc In-hospital patient falls after total joint arthroplasty: incidence, demographics, and risk factors in the United States
    Stavros G Memtsoudis
    Department of Anesthesiology, Hospital for Special Surgery, New York, New York 10021, USA
    J Arthroplasty 27:823-8.e1. 2012

Collaborators

Detail Information

Publications46

  1. pmc Beyond repeated-measures analysis of variance: advanced statistical methods for the analysis of longitudinal data in anesthesia research
    Yan Ma
    Research Division, Hospital for Special Surgery, Weill Medical College of Cornell University, New York, NY 10021, USA
    Reg Anesth Pain Med 37:99-105. 2012
    ..The goal of this article was to increase awareness of the advantages of modern statistical methods and promote their use in anesthesia research...
  2. pmc Comparative in-hospital morbidity and mortality after revision versus primary thoracic and lumbar spine fusion
    Yan Ma
    Department of Public Health, Hospital for Special Surgery, Weill Medical College of Cornell University, 535 East 70th St, New York, NY 10021, USA
    Spine J 10:881-9. 2010
    ....
  3. pmc Perioperative morbidity and mortality after anterior, posterior, and anterior/posterior spine fusion surgery
    Stavros G Memtsoudis
    Department of Anesthesiology, Hospital for Special Surgery, Weill Medical College of Cornell University, New York, NY 10021, USA
    Spine (Phila Pa 1976) 36:1867-77. 2011
    ..Analysis of population-based national hospital discharge data collected for the National Inpatient Sample...
  4. pmc Does limb preconditioning reduce pain after total knee arthroplasty? A randomized, double-blind study
    Stavros G Memtsoudis
    Department of Anesthesiology, Hospital for Special Surgery, Weill Medical College of Cornell University, 535 East 70th Street, New York, NY, 10021, USA
    Clin Orthop Relat Res 472:1467-74. 2014
    ..Ischemic preconditioning of tissue before inducing procedure-related underperfusion may reduce the postoperative inflammatory response, which further may reduce associated pain...
  5. pmc Predictors for moderate to severe acute postoperative pain after total hip and knee replacement
    Spencer S Liu
    Department of Anesthesiology, Hospital for Special Surgery and Weill Cornell Medical College, 535 East 70th St, New York, NY 10021, USA
    Int Orthop 36:2261-7. 2012
    ..We undertook this multi-centre cross-sectional study to identify preoperative risk factors for moderate to severe pain after total hip (THR) and knee (TKR) replacement...
  6. doi request reprint Trends in in-hospital major morbidity and mortality after total joint arthroplasty: United States 1998-2008
    Meghan Kirksey
    Department of Anesthesiology, New York Presbyterian Hospital Weill Cornell, New York, NY, USA
    Anesth Analg 115:321-7. 2012
    ..The use of total joint arthroplasties is increasing worldwide. In this work we aim to elucidate recent trends in demographics and perioperative outcomes of patients undergoing total hip (THA) or total knee arthroplasty (TKA)...
  7. pmc Metabolic syndrome and lumbar spine fusion surgery: epidemiology and perioperative outcomes
    Stavros G Memtsoudis
    Department of Anesthesiology, Hospital for Special Surgery, New York, NY 10021, USA
    Spine (Phila Pa 1976) 37:989-95. 2012
    ..Analysis of the National Inpatient Sample database from 2000 to 2008...
  8. pmc Bilateral total knee arthroplasty: risk factors for major morbidity and mortality
    Stavros G Memtsoudis
    Department of Anesthesiology, Hospital for Special Surgery, Weill Cornell Medical College, New York, NY, USA
    Anesth Analg 113:784-90. 2011
    ..Our objective was to determine the incidence and patient-related risk factors for major morbidity and mortality among patients undergoing BTKA...
  9. pmc Epidemiology and risk factors for perioperative mortality after total hip and knee arthroplasty
    Stavros G Memtsoudis
    Department of Anesthesiology, Hospital for Special Surgery, New York, 10021 NY, USA
    J Orthop Res 30:1811-21. 2012
    ..Our data can be used to assess the risk for perioperative mortality and to develop targeted intervention to decrease such risk...
  10. pmc In-hospital patient falls after total joint arthroplasty: incidence, demographics, and risk factors in the United States
    Stavros G Memtsoudis
    Department of Anesthesiology, Hospital for Special Surgery, New York, New York 10021, USA
    J Arthroplasty 27:823-8.e1. 2012
    ..In-hospital mortality, complications, and cost were higher in patients sustaining IF. Given the associated morbidity, mortality, and increased cost, resources should be allocated to minimize the risk of IF in this population...
  11. pmc Comparative safety of simultaneous and staged anterior and posterior spinal surgery
    Peter G Passias
    Division of Spine Surgery, Department of Orthopaedic Surgery, Hospital for Special Surgery Weill Medical College of Cornell University, New York, NY, USA
    Spine (Phila Pa 1976) 37:247-55. 2012
    ..Analysis of population-based national hospital discharge data collected for the Nationwide Inpatient Sample...
  12. pmc Perioperative mortality after lumbar spinal fusion surgery: an analysis of epidemiology and risk factors
    Matthias Pumberger
    Department of Orthopedic Surgery, Hospital for Special Surgery, New York, NY 10021, USA
    Eur Spine J 21:1633-9. 2012
    ..Analysis of the Nationwide Inpatient Sample (NIS) from 1998 to 2008...
  13. ncbi request reprint Mortality of patients with respiratory insufficiency and adult respiratory distress syndrome after surgery: the obesity paradox
    Stavros G Memtsoudis
    Department of Anesthesiology, Hospital for Special Surgery, New York, NY 10021, USA
    J Intensive Care Med 27:306-11. 2012
    ....
  14. pmc Increased in-hospital complications after primary posterior versus primary anterior cervical fusion
    Stavros G Memtsoudis
    Department of Anesthesiology, Hospital for Special Surgery, Weill Medical College of Cornell University, 535 East 70th Street, New York, NY 10021, USA
    Clin Orthop Relat Res 469:649-57. 2011
    ..Since for some patients either approach might be reasonable it is important to know the relative perioperative risks for decision-making...
  15. doi request reprint National trends in anterior cervical fusion procedures
    Satyajit Marawar
    Department of Orthopedic Surgery, Division of Spine Surgery, Hospital for Special Surgery, Weill Medical College of Cornell University, New York, NY, USA
    Spine (Phila Pa 1976) 35:1454-9. 2010
    ..Population-based database analysis...
  16. doi request reprint Association of perioperative use of nonsteroidal anti-inflammatory drugs with postoperative myocardial infarction after total joint replacement
    Spencer S Liu
    Department of Anesthesiology, Hospital for Special Surgery, and Weill College of Medicine of Cornell University, New York, NY 10021, USA
    Reg Anesth Pain Med 37:45-50. 2012
    ..Thus, we performed this single-center observational cohort study to determine any association between NSAID use and postoperative myocardial infarction (POMI)...
  17. pmc Factors influencing unexpected disposition after orthopedic ambulatory surgery
    Stavros G Memtsoudis
    Department of Anesthesiology, Hospital for Special Surgery, New York, NY 10021, USA
    J Clin Anesth 24:89-95. 2012
    ..To analyze whether patient characteristics, ambulatory facility type, anesthesia provider and technique, procedure type, and temporal factors impact the outcome of unexpected disposition after ambulatory knee and shoulder surgery...
  18. ncbi request reprint In-hospital surgical site infections after primary hip and knee arthroplasty--incidence and risk factors
    Lazaros A Poultsides
    Department of Orthopedic Surgery, Division of Adult Reconstruction and Joint Replacement, Hospital for Special Surgery, Weill Medical College of Cornell University, New York, New York, USA
    J Arthroplasty 28:385-9. 2013
    ..Data relied on coded information and could not differentiate between superficial or deep infection, or capture patients readmitted for SSI, and therefore may have underestimated the true incidence of SSI...
  19. pmc The effect of low versus high tidal volume ventilation on inflammatory markers in healthy individuals undergoing posterior spine fusion in the prone position: a randomized controlled trial
    Stavros G Memtsoudis
    Department of Anesthesiology, Hospital for Special Surgery, New York, NY 10021, USA
    J Clin Anesth 24:263-9. 2012
    ..To evaluate the effect of ventilation strategy on markers of inflammation in patients undergoing spine surgery in the prone position...
  20. ncbi request reprint Demographics, outcomes, and risk factors for adverse events associated with primary and revision total hip arthroplasties in the United States
    Stavros G Memtsoudis
    Department of Anesthesiology, Hospital for Special Surgery Weill Medical College of Cornell University, New York, NY, USA
    Am J Orthop (Belle Mead NJ) 39:E72-7. 2010
    ..Additional studies are warranted to determine causal relationships...
  21. doi request reprint Safety and efficacy of multimodal thromboprophylaxis following total knee arthroplasty: a comparative study of preferential aspirin vs. routine coumadin chemoprophylaxis
    Mark W Gesell
    Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, NY 10021, USA
    J Arthroplasty 28:575-9. 2013
    ..03). Multimodal thromboprophylaxis with aspirin given to the majority of patients at a low VTE risk is safe and effective in patients undergoing primary TKA...
  22. pmc Pulmonary circulatory changes after bilateral total knee arthroplasty during regional anesthesia
    Anna Maria Bombardieri
    Department of Anesthesiology, Hospital for Special Surgery, New York, NY 10021, USA
    J Clin Anesth 25:4-8. 2013
    ..To monitor the pulmonary hemodynamics of patients undergoing bilateral total knee arthroplasty (BTKA) intraoperatively and up to 24 hours following surgery...
  23. doi request reprint The metabolic syndrome in patients undergoing knee and hip arthroplasty: trends and in-hospital outcomes in the United States
    Alejandro Gonzalez Della Valle
    Department of Orthopedic Surgery, Hospital for Special Surgery, New York, NY, USA
    J Arthroplasty 27:1743-1749.e1. 2012
    ..Given the increasing rates of MetS and its association with higher risk for major complications among total joint arthroplasty recipients, further research into the impact of this disease complex is warranted...
  24. doi request reprint Nerve stimulator versus ultrasound guidance for placement of popliteal catheters for foot and ankle surgery
    Daniel Maalouf
    Department of Anesthesiology, Hospital for Special Surgery, New York, NY 10021, USA
    J Clin Anesth 24:44-50. 2012
    ..To determine whether ultrasound guidance improves the quality of continuous popliteal block when compared with a nerve stimulator after major foot and ankle surgery...
  25. doi request reprint Perioperative mortality in patients with pulmonary hypertension undergoing major joint replacement
    Stavros G Memtsoudis
    Department of Anesthesiology, Hospital for Special Surgery, New York, NY 10021, USA
    Anesth Analg 111:1110-6. 2010
    ..In this study, we evaluated the incidence and risks of perioperative morbidity and mortality in patients with PHTN undergoing primary total hip arthroplasty (THA) and total knee arthroplasty (TKA)...
  26. doi request reprint Adductor canal block versus femoral nerve block for total knee arthroplasty: a prospective, randomized, controlled trial
    David H Kim
    From the Department of Anesthesiology, Hospital for Special Surgery, New York, New York D H K, Y L, E A G, R L K, D B M, A K G, and J T Y Department of Anesthesiology and Critical Care Medicine, The Johns Hopkins University, Baltimore, Maryland A M Department of Anesthesiology, Weill Cornell Medical Center, New York, New York M L P and Department of Epidemiology and Biostatistics Core, Hospital for Special Surgery, New York, New York Y y L and Y M
    Anesthesiology 120:540-50. 2014
    ..The authors hypothesized that ACB, compared with FNB, would exhibit less quadriceps weakness and demonstrate noninferior pain score and opioid consumption at 6 to 8 h postanesthesia...
  27. pmc Aspirin for elective hip and knee arthroplasty: a multimodal thromboprophylaxis protocol
    Ettore Vulcano
    Department of Orthopaedic Surgery, Hospital for Special Surgery and Weill Medical College of Cornell University, 535 East 70th Street, New York, NY 10021, USA
    Int Orthop 36:1995-2002. 2012
    ..We determined the 90-day rate of venous thromboembolism (VTE), other complications and mortality in patients who underwent primary elective hip and knee replacement surgery with multimodal thromboprophylaxis...
  28. doi request reprint Meta-analysis of re-operation, nonunion, and infection after open reduction and internal fixation of patella fractures
    Christopher J Dy
    Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, New York, USA
    J Trauma Acute Care Surg 73:928-32. 2012
    ..Furthermore, gaining a better understanding of the factors that contribute to re-operation and complications will help to generate hypotheses and research agendas to address these difficult problems...
  29. pmc Changes in anesthesia-related factors in ambulatory knee and shoulder surgery: United States 1996-2006
    Stavros G Memtsoudis
    Department of Anesthesiology, Hospital for Special Surgery, Weill Medical College of Cornell University, 535 E 70th St, New York, NY 10021, USA
    Reg Anesth Pain Med 36:327-31. 2011
    ..We sought to characterize temporal changes in factors surrounding ambulatory orthopedic surgery and anesthesia...
  30. doi request reprint A cross-sectional survey on prevalence and risk factors for persistent postsurgical pain 1 year after total hip and knee replacement
    Spencer S Liu
    Department of Anesthesiology, Hospital for Special Surgery and Weill Cornell Medical College, New York, NY 10021, USA
    Reg Anesth Pain Med 37:415-22. 2012
    ..We surveyed a variety of practices and patients and also correlated persistent pain with health-related quality-of-life outcomes...
  31. pmc Comparative utility of centrally versus peripherally transduced venous pressure monitoring in the perioperative period in spine surgery patients
    Anna Maria Bombardieri
    Careggi Hospital, University of Florence, Florence, Italy
    J Clin Anesth 24:542-8. 2012
    ..To compare central venous pressure (CVP) with peripheral venous pressure (PVP) monitoring during the intraoperative and postoperative periods in patients undergoing spine surgery...
  32. doi request reprint Cartilage injury after acute, isolated anterior cruciate ligament tear: immediate and longitudinal effect with clinical/MRI follow-up
    Hollis G Potter
    Department of MRI, Hospital for Special Surgery, New York, NY 10021, USA
    Am J Sports Med 40:276-85. 2012
    ..Anterior cruciate ligament (ACL) tears have been implicated in the development of osteoarthritis. Limited data exist on longitudinal follow-up of isolated ACL injury...
  33. pmc Perioperative outcomes after unilateral and bilateral total knee arthroplasty
    Stavros G Memtsoudis
    Department of Anesthesiology, Hospital for Special Surgery, Weill Medical College of Cornell University, New York, New York, USA
    Anesthesiology 111:1206-16. 2009
    ..The authors sought to study differences in perioperative outcomes between unilateral and BTKA and to further compare BTKAs performed during the same versus different operations during the same hospitalization...
  34. ncbi request reprint Perioperative inflammatory response in total knee arthroplasty patients: impact of limb preconditioning
    Stavros G Memtsoudis
    Department of Anesthesiology, Hospital for Special Surgery, 535 E 70th St, New York, NY 10021, USA
    Reg Anesth Pain Med 35:412-6. 2010
    ....
  35. doi request reprint Treatment of chronic syndesmotic injury: a systematic review and meta-analysis
    George Parlamas
    Department of Foot and Ankle Surgery, Hospital for Special Surgery, New York, NY, USA
    Knee Surg Sports Traumatol Arthrosc 21:1931-9. 2013
    ..The purpose of this study is to systematically review and meta-analyse the available literature on the treatment of chronic syndesmotic injuries of the ankle...
  36. pmc Abnormal tibiofemoral contact stress and its association with altered kinematics after center-center anterior cruciate ligament reconstruction: an in vitro study
    Carl Imhauser
    Hospital for Special Surgery, Biomechanics Department, 535 East 70th Street, New York, NY 10021, USA
    Am J Sports Med 41:815-25. 2013
    ..research questions: (1) How do ACL deficiency and reconstruction affect the kinematics of and contact stress in the tibiofemoral joint? (2) What kinematic differences are associated with abnormal contact stress after ACL reconstruction?..
  37. pmc The kidney sodium-phosphate co-transporter alters bone quality in an age and gender specific manner
    Adele L Boskey
    Mineralized Tissue Research Laboratory, Hospital for Special Surgery, New York, NY, USA
    Bone 53:546-53. 2013
    ..These data indicate that the bone quality of the KO mice at both ages differs from the normal and suggests that these bone quality differences may contribute to skeletal phenotype in humans with mutations in this co-transporter...
  38. doi request reprint Dynamic contact mechanics of radial tears of the lateral meniscus: implications for treatment
    Asheesh Bedi
    MedSport, University of Michigan, Ann Arbor, Michigan 48106, USA
    Arthroscopy 28:372-81. 2012
    ..To characterize the effect of radial tears (RTs) of the lateral meniscus and their subsequent treatment (inside-out repair, partial meniscectomy) on joint contact mechanics during simulated gait...
  39. doi request reprint Complications after flexor tendon repair: a systematic review and meta-analysis
    Christopher J Dy
    Division of Hand and Upper Extremity Surgery, Hospital for Special Surgery, New York, NY 10021, USA
    J Hand Surg Am 37:543-551.e1. 2012
    ..The purpose of this study was to determine the incidence of these complications and the potential contributory factors within the published literature...
  40. doi request reprint Multivariate meta-analysis: a robust approach based on the theory of U-statistic
    Yan Ma
    Research Division, Hospital for Special Surgery, New York, NY 10021, USA
    Stat Med 30:2911-29. 2011
    ..We discuss ideas for future research based on U-statistic for testing significance of between-study heterogeneity and for extending the work to meta-regression setting...
  41. pmc Risk of postoperative hypoxemia in ambulatory orthopedic surgery patients with diagnosis of obstructive sleep apnea: a retrospective observational study
    Spencer S Liu
    Department of Anesthesiology, Hospital for Special Surgery, Weill College of Medicine of Cornell University, 535 East 70th Street, New York, NY 10021, USA
    Patient Saf Surg 4:9. 2010
    ..Our OSA patients undergoing ambulatory-type orthopedic procedures are monitored overnight in the PACU, thus we reviewed patient records to determine incidence of complications...
  42. doi request reprint Perioperative pulmonary outcomes in patients with sleep apnea after noncardiac surgery
    Stavros Memtsoudis
    Department of Anesthesiology, Hospital for Special Surgery, Weill Medical College of Cornell University, 535 East 70th St, New York, NY 10021, USA
    Anesth Analg 112:113-21. 2011
    ....
  43. doi request reprint Differences between sexes in lower extremity alignment and muscle activation during soccer kick
    Robert H Brophy
    Motion Analysis Laboratory, Hospital for Special Surgery, New York, NY, USA
    J Bone Joint Surg Am 92:2050-8. 2010
    ..The purpose of this study was to test the hypothesis that females have different lower-extremity alignment and muscle activation patterns than males during the soccer kick...
  44. doi request reprint A prospective survey of patient-controlled epidural analgesia with bupivacaine and clonidine after total hip replacement: a pre- and postchange comparison with bupivacaine and hydromorphone in 1,000 patients
    Spencer S Liu
    Department of Anesthesiology, Hospital for Special Surgery and Weill Cornell Medical College of Cornell University, 535 East 70th Street, New York, NY 10021, USA
    Anesth Analg 113:1213-7. 2011
    ..We performed this prospective survey to evaluate analgesia and the side effect profile in total hip replacement patients before and after a systematic change from PCEA with bupivacaine/hydromorphone to bupivacaine/clonidine...
  45. pmc Range of motion and function are similar in patients undergoing TKA with posterior stabilised and high-flexion inserts
    Aamer Malik
    Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, NY, USA
    Int Orthop 34:965-72. 2010
    ..Patients with a preoperative ROM of at least 120° showed similar results. Our study found that one year after surgery, patients who underwent TKA with a PS or an HF insert achieved similar flexion, ROM, and function...
  46. pmc Perioperative pulmonary circulatory changes during bilateral total hip arthroplasty under regional anesthesia
    Stavros G Memtsoudis
    Department of Anesthesiology, Hospital for Special Surgery, New York, NY 10021, USA
    Reg Anesth Pain Med 35:417-21. 2010
    ....