Publications in Peer Reviewed Journals

1. PMID: 39945944

No-Transcatheter Aortic Valve Replacement (TAVR) Zones and Their Effect on Access to Care for Medicare Beneficiaries with Aortic Stenosis.

David G, Epstein AJ, Giri J, Nathan A, Chikermane SG, Ryan M, Thompson C, Clancy S, Gunnarsson C.Adv Ther. 2025 Feb 13. doi: 10.1007/s12325-025-03116-8. Online ahead of print.PMID: 39945944

 

2. PMID: 39922868

The healthcare burden of isolated aortic valve insufficiency.

Sultan I, Ryan M, Gunnarsson C, Heidrich N, Vallabhajosyula P.Sci Rep. 2025 Feb 8;15(1):4771. doi: 10.1038/s41598-025-87179-1.PMID: 39922868 Free PMC article.

 

3. PMID: 39589685

Cost Savings in Chronic Pain Patients Initiating Peripheral Nerve Stimulation (PNS) with a 60-Day PNS Treatment.

Dickerson DM, Kalia H, Vorenkamp KE, Slavin KV, Hagedorn JM, Gunnarsson C, Keuffel EL, Epstein AJ, Stultz M, Crosby ND.Pain Ther. 2025 Feb;14(1):269-282. doi: 10.1007/s40122-024-00677-4. Epub 2024 Nov 26.PMID: 39589685 Free PMC article.

 

4. PMID: 39564567

Measuring hospital inpatient Procedure Access Inequality in the United States.

Bergman A, David G, Nathan A, Giri J, Ryan M, Chikermane S, Thompson C, Clancy S, Gunnarsson C.Health Aff Sch. 2024 Nov 6;2(11):qxae142. doi: 10.1093/haschl/qxae142. eCollection 2024 Nov.PMID: 39564567 Free PMC article.

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5. PMID: 39670051

The Cost of Waiting for a Transcatheter Aortic Valve Replacement in Medicare Beneficiaries With Severe Aortic Stenosis.

Sethi A, Elmariah S, Gunnarsson C, Ryan M, Chikermane S, Thompson C, Russo M.Struct Heart. 2024 Jun 12;8(6):100321. doi: 10.1016/j.shj.2024.100321. eCollection 2024 Nov.PMID: 39670051 Free PMC article.

 

6. PMID: 39469608

Inequities in Access to Tricuspid Valve Treatments: The Impact of Procedure and Volume Requirements.

Barker CM, Kemp LS, Mancilla M, Mollenkopf S, Gunnarsson C, Ryan M, David G.JACC Adv. 2024 Oct 18;3(11):101342. doi: 10.1016/j.jacadv.2024.101342. eCollection 2024 Nov.PMID: 39469608 Free PMC article.

 

7. PMID: 38679141

Comparative effectiveness of non-compounded polidocanol 1% endovenous microfoam (Varithena) ablation versus endovenous thermal ablation utilizing a systematic review and network meta-analysis.

Kabnick LS, Jimenez JC, Coogan SM, Gache L, Frame D, Gunnarsson C, Ozsvath K.J Vasc Surg Venous Lymphat Disord. 2024 Nov;12(6):101896. doi: 10.1016/j.jvsv.2024.101896. Epub 2024 Apr 26.PMID: 38679141 Free PMC article.

 

8. PMID: 38980601

Potential Cost Savings with 60-day Peripheral Nerve Stimulation Treatment in Chronic Axial Low Back Pain.

Sheth SJ, Mauck WD, Russo DP, Keuffel EL, Gunnarsson CL, Stultz M, McGee MJ, Huntoon MA.Pain Ther. 2024 Oct;13(5):1187-1202. doi: 10.1007/s40122-024-00630-5. Epub 2024 Jul 9.PMID: 38980601 Free PMC article.

 

9. PMID: 39189613

Trends in Complications Among Patients Undergoing Aortic Valve Replacement in the United States.

Harvey JE 3rd, Kapadia SR, Cohen DJ, Kalra A, Irish W, Gunnarsson C, Ryan M, Chikermane SG, Thompson C, Puri R.J Am Heart Assoc. 2024 Sep 3;13(17):e031461. doi: 10.1161/JAHA.123.031461. Epub 2024 Aug 27.PMID: 39189613 Free PMC article.

 

10. PMID: 39158572

Economic Benefits of Surgical Aortic Valve Replacement on Patients With Symptomatic Aortic Valve Regurgitation.

Still SA, Ryan M, Gunnarsson C, Heidrich N, Davies JE.J Am Heart Assoc. 2024 Aug 20;13(16):e9983. doi: 10.1161/JAHA.124.035278. Epub 2024 Aug 19.PMID: 39158572 Free article.

 

11. PMID: 38216519

Limited Access to Aortic Valve Procedures in Socioeconomically Disadvantaged Areas.

David G, Bergman A, Gunnarsson C, Ryan M, Chikermane S, Thompson C, Clancy S.J Am Heart Assoc. 2024 Jan 16;13(2):e030569. doi: 10.1161/JAHA.123.030569. Epub 2024 Jan 12.PMID: 38216519 Free PMC article.

 

12. PMID: 37871783

Long-term risk of reintervention after transcatheter aortic valve replacement.

Baron SJ, Ryan MP, Chikermane SG, Thompson C, Clancy S, Gunnarsson CL.Am Heart J. 2024 Jan;267:44-51. doi: 10.1016/j.ahj.2023.10.002. Epub 2023 Oct 21.PMID: 37871783 Free article.

 

13. PMID: 35734289

Longitudinal outcomes in cryptogenic stroke patients with and without long-term cardiac monitoring for atrial fibrillation.

Yaghi S, Ryan MP, Gunnarsson CL, Irish W, Rosemas SC, Neisen K, Ziegler PD, Reynolds MR.Heart Rhythm O2. 2022 Feb 13;3(3):223-230. doi: 10.1016/j.hroo.2022.02.006. eCollection 2022 Jun.PMID: 35734289 Free PMC article.

 

14. PMID: 35470691

Anxiety and Depression Following Aortic Valve Replacement.

Wegermann ZK, Mack MJ, Arnold SV, Thompson CA, Ryan M, Gunnarsson C, Strong S, Cohen DJ, Alexander KP, Brennan JM.J Am Heart Assoc. 2022 May 3;11(9):e024377. doi: 10.1161/JAHA.121.024377. Epub 2022 Apr 26.PMID: 35470691 Free PMC article.

 

15. PMID: 35404553

The unintended consequences of Medicare's wage index adjustment on device-intensive hospital procedures.

David G, Gunnarsson C, Laine L, Ryan M, Clancy S, Gunnarsson G, Moore K, Irish W.Am J Manag Care. 2022 Mar 1;28(3):e96-e102. doi: 10.37765/ajmc.2022.88842.PMID: 35404553 Free article.

 

16. PMID: 35193382

Contemporary Costs Associated With Transcatheter Versus Surgical Aortic Valve Replacement in Medicare Beneficiaries.

Baron SJ, Ryan MP, Moore KA, Clancy SJ, Gunnarsson CL.Circ Cardiovasc Interv. 2022 Mar;15(3):e011295. doi: 10.1161/CIRCINTERVENTIONS.121.011295. Epub 2022 Feb 23.PMID: 35193382

 

17. PMID: 34766727

Use of iso-osmolar contrast media during endovascular revascularization is associated with a lower incidence of major adverse renal, cardiac, or limb events.

Prasad A, Amin AP, Ryan MP, Gunnarsson C, Brilakis ES.Catheter Cardiovasc Interv. 2022 Mar;99(4):1335-1342. doi: 10.1002/ccd.30006. Epub 2021 Nov 12.PMID: 34766727

 

18. PMID: 34227736

The need for future coronary access following surgical or transcatheter aortic valve replacement.

Hermiller JB Jr, Gunnarsson CL, Ryan MP, Moore KA, Clancy SJ, Irish W.Catheter Cardiovasc Interv. 2021 Nov 1;98(5):950-956. doi: 10.1002/ccd.29841. Epub 2021 Jul 6.PMID: 34227736

 

19. PMID: 34581191

Temporal Changes in Mortality After Transcatheter and Surgical Aortic Valve Replacement: Retrospective Analysis of US Medicare Patients (2012-2019).

Lauck SB, Baron SJ, Irish W, Borregaard B, Moore KA, Gunnarsson CL, Clancy S, Wood DA, Thourani VH, Webb JG, Wijeysundera HC.J Am Heart Assoc. 2021 Oct 19;10(20):e021748. doi: 10.1161/JAHA.120.021748. Epub 2021 Sep 28.PMID: 34581191 Free PMC article.

 

20. PMID: 34225473

Healthcare utilization and guideline-directed medical therapy in heart failure patients with reduced ejection fraction.

McCullough PA, Mehta HS, Barker CM, Houten JV, Mollenkopf S, Gunnarsson C, Ryan M, Cork DP.J Comp Eff Res. 2021 Oct;10(14):1055-1063. doi: 10.2217/cer-2021-0118. Epub 2021 Jul 6.PMID: 34225473 Free article.

 

21. PMID: 34342033

Mortality and guideline-directed medical therapy in real-world heart failure patients with reduced ejection fraction.

McCullough PA, Mehta HS, Barker CM, Van Houten J, Mollenkopf S, Gunnarsson C, Ryan M, Cork DP.Clin Cardiol. 2021 Sep;44(9):1192-1198. doi: 10.1002/clc.23664. Epub 2021 Aug 3.PMID: 34342033 Free PMC article.

 

22. PMID: 34280892

Association of Iso-Osmolar vs Low-Osmolar Contrast Media With Major Adverse Renal or Cardiovascular Events in Patients at High Risk for Acute Kidney Injury Undergoing Endovascular Abdominal Aortic Aneurysm Repair.

Amin AP, Prasad A, Ryan MP, Gunnarsson C, Brilakis ES.J Invasive Cardiol. 2021 Aug;33(8):E640-E646. doi: 10.25270/jic/20.00670. Epub 2021 Jul 16.PMID: 34280892 Free article.

 

23. PMID: 33144108

Long-term Healthcare Expenditures Over Time for Tissue and Mechanical Aortic Valve Replacement.

Nguyen TC, Walker T, Gunnarsson C, Moore M, Keuffel EL.Ann Thorac Surg. 2021 Aug;112(2):526-531. doi: 10.1016/j.athoracsur.2020.07.106. Epub 2020 Nov 2.PMID: 33144108

 

24. PMID: 33385352

Comparison of Survival in Patients With Clinically Significant Tricuspid Regurgitation With and Without Heart Failure (From the Optum Integrated File).

Barker CM, Cork DP, McCullough PA, Mehta HS, Van Houten J, Gunnarsson C, Ryan M, Irish W, Mollenkopf S, Verta P.Am J Cardiol. 2021 Apr 1;144:125-130. doi: 10.1016/j.amjcard.2020.12.070. Epub 2020 Dec 30.PMID: 33385352

 

25. PMID: 32791306

Evaluating patient preferences for thermal ablation versus nonthermal, nontumescent varicose vein treatments.

Pappas P, Gunnarsson C, David G.J Vasc Surg Venous Lymphat Disord. 2021 Mar;9(2):383-392. doi: 10.1016/j.jvsv.2020.08.003. Epub 2020 Aug 11.PMID: 32791306 Free article.

 

26. PMID: 33174767

Healthcare utilization in clinically significant tricuspid regurgitation patients with and without heart failure.

Barker CM, Cork DP, McCullough PA, Mehta HS, Houten JV, Gunnarsson C, Mollenkopf S, Verta P.J Comp Eff Res. 2021 Jan;10(1):29-37. doi: 10.2217/cer-2020-0198. Epub 2020 Nov 11.PMID: 33174767 Free article.

 

27. PMID: 32469120

Impact of mitral regurgitation on cardiovascular hospitalization and death in newly diagnosed heart failure patients.

Cork DP, McCullough PA, Mehta HS, Barker CM, Gunnarsson C, Ryan MP, Baker ER, Van Houten J, Mollenkopf S, Verta P.ESC Heart Fail. 2020 Aug;7(4):1502-1509. doi: 10.1002/ehf2.12653. Epub 2020 May 29.PMID: 32469120 Free PMC article.

 

28. PMID: 31952454

The economic impact of clinically significant tricuspid regurgitation in a large, administrative claims database.

Cork DP, McCullough PA, Mehta HS, Barker CM, Van Houten J, Gunnarsson C, Ryan MP, Baker ER, Mollenkopf S, Verta P.J Med Econ. 2020 May;23(5):521-528. doi: 10.1080/13696998.2020.1718681. Epub 2020 Mar 2.PMID: 31952454 Free article.

 

29. PMID: 30943834

Incidence and distribution of lower extremity reflux in patients with pelvic venous insufficiency.

Scotti N, Pappas K, Lakhanpal S, Gunnarsson C, Pappas PJ.Phlebology. 2020 Feb;35(1):10-17. doi: 10.1177/0268355519840846. Epub 2019 Apr 3.PMID: 30943834 No abstract available.

 

30. PMID: 31470974

The Economic Impact of Mitral Regurgitation on Patients With Medically Managed Heart Failure.

McCullough PA, Mehta HS, Barker CM, Cork DP, Gunnarsson C, Ryan MP, Baker ER, Van Houten J, Mollenkopf S, Verta P.Am J Cardiol. 2019 Oct 15;124(8):1226-1231. doi: 10.1016/j.amjcard.2019.07.033. Epub 2019 Jul 30.PMID: 31470974

 

31. PMID: 31588786

Twelve-month healthcare utilization and expenditures in Medicare fee-for-service patients with clinically significant mitral regurgitation.

Mehta HS, Houten JV, Verta P, Gunnarsson C, Mollenkopf S, Cork DP.J Comp Eff Res. 2019 Oct;8(13):1089-1098. doi: 10.2217/cer-2019-0026. Epub 2019 Oct 7.PMID: 31588786 Free article.

 

32. PMID: 31104524

The healthcare burden of disease progression in medicare patients with functional mitral regurgitation.

McCullough PA, Mehta HS, Cork DP, Barker CM, Gunnarsson C, Mollenkopf S, Van Houten J, Verta P.J Med Econ. 2019 Sep;22(9):909-916. doi: 10.1080/13696998.2019.1621325. Epub 2019 Jun 7.PMID: 31104524 Free article.

 

33. PMID: 31433207

Incremental direct healthcare expenditures of valvular heart disease in the USA.

Mallow PJ, Chen J, Moore M, Gunnarsson C, Rizzo JA.J Comp Eff Res. 2019 Aug;8(11):879-887. doi: 10.2217/cer-2019-0007. Epub 2019 Aug 21.PMID: 31433207 Free article.

 

34. PMID: 30838899

Hospital costs associated with intraoperative hypotension among non-cardiac surgical patients in the US: a simulation model.

Keuffel EL, Rizzo J, Stevens M, Gunnarsson C, Maheshwari K.J Med Econ. 2019 Jul;22(7):645-651. doi: 10.1080/13696998.2019.1591147. Epub 2019 Mar 25.PMID: 30838899 Free article.

 

35. PMID: 30698059

A Monte Carlo simulation estimating US hospital cost reductions associated with hypotension control in septic ICU patients.

Keuffel EL, Stevens M, Gunnarsson C, Rizzo J, Sessler DI, Maheshwari K.J Med Econ. 2019 Apr;22(4):383-389. doi: 10.1080/13696998.2019.1576695. Epub 2019 Feb 19.PMID: 30698059 Free article.

 

36. PMID: 30638067

Use of echocardiograms in the Medicare population: a diagnostic tool in the fight against severe aortic stenosis.

Grossi EA, A Moore K, Gunnarsson C.J Comp Eff Res. 2019 Mar;8(4):265-272. doi: 10.2217/cer-2018-0071. Epub 2019 Jan 14.PMID: 30638067 Free article.

 

37. PMID: 30280476

Rate of major adverse renal or cardiac events with iohexol compared to other low osmolar contrast media during interventional cardiovascular procedures.

McCullough PA, Todoran TM, Brilakis ES, Ryan MP, Gunnarsson C.Catheter Cardiovasc Interv. 2019 Feb 1;93(2):E90-E97. doi: 10.1002/ccd.27807. Epub 2018 Oct 2.PMID: 30280476 Free PMC article.

 

38. PMID: 30143056

Risk of renal events following intravenous iodinated contrast material administration among inpatients admitted with cancer a retrospective hospital claims analysis.

Ng CS, Kalva SP, Gunnarsson C, Ryan MP, Baker ER, Mehta RL.Cancer Imaging. 2018 Aug 24;18(1):30. doi: 10.1186/s40644-018-0159-3.PMID: 30143056 Free PMC article.

 

39. PMID: 29682984

Clinical and economic benefits of advanced microplegia delivery system in cardiac surgery: evidence from 250 hospitals.

Gerdisch MW, Robinson S, David G, Makepeace S, Ryan MP, Gunnarsson C.J Comp Eff Res. 2018 Jul;7(7):673-683. doi: 10.2217/cer-2018-0011. Epub 2018 Apr 23.PMID: 29682984 Free article.

 

40. PMID: 29226736

The effect of major adverse renal cardiovascular event (MARCE) incidence, procedure volume, and unit cost on the hospital savings resulting from contrast media use in inpatient angioplasty.

Keuffel E, McCullough PA, Todoran TM, Brilakis ES, Palli SR, Ryan MP, Gunnarsson C.J Med Econ. 2018 Apr;21(4):356-364. doi: 10.1080/13696998.2017.1415912. Epub 2017 Dec 15.PMID: 29226736 Free article.

 

41. PMID: 29117715

Iso-osmolar contrast media and adverse renal and cardiac events after percutaneous cardiovascular intervention.

McCullough PA, David G, Todoran TM, Brilakis ES, Ryan MP, Gunnarsson C.J Comp Eff Res. 2018 Apr;7(4):331-341. doi: 10.2217/cer-2017-0052. Epub 2017 Nov 9.PMID: 29117715 Free article.

 

42. PMID: 29805140

Racial Disparities in PAD-Related Amputation Rates among Native Americans and non-Hispanic Whites: An HCUP Analysis.

Rizzo JA, Chen J, Laurich C, Santos A, Martinsen BJ, Ryan MP, Kotlarz H, Gunnarsson C.J Health Care Poor Underserved. 2018;29(2):782-800. doi: 10.1353/hpu.2018.0058.PMID: 29805140

 

43. PMID: 28760065

Risk of major amputation or death among patients with critical limb ischemia initially treated with endovascular intervention, surgical bypass, minor amputation, or conservative management.

Armstrong EJ, Ryan MP, Baker ER, Martinsen BJ, Kotlarz H, Gunnarsson C.J Med Econ. 2017 Nov;20(11):1148-1154. doi: 10.1080/13696998.2017.1361961. Epub 2017 Aug 16.PMID: 28760065 Free article.

 

44. PMID: 28374618

The economic value of rapid deployment aortic valve replacement via full sternotomy.

Moore M, Barnhart GR, Chitwood WR Jr, Rizzo JA, Gunnarsson C, Palli SR, Grossi EA.J Comp Eff Res. 2017 Jun;6(4):293-302. doi: 10.2217/cer-2016-0064. Epub 2017 Apr 4.PMID: 28374618 Free article.

 

45. PMID: 29264506

Health Care Burden in Patients With Adrenal Insufficiency.

Gunnarsson C, Ryan MP, Marelli C, Baker ER, Stewart PM, Johannsson G, Biller BMK.J Endocr Soc. 2017 Apr 12;1(5):512-523. doi: 10.1210/js.2016-1064. eCollection 2017 May 1.PMID: 29264506 Free PMC article.

 

46. PMID: 27966377

Acute myeloid leukemia: a retrospective claims analysis of resource utilization and expenditures for newly diagnosed patients from first-line induction to remission and relapse.

Irish W, Ryan M, Gache L, Gunnarsson C, Bell T, Shapiro M.Curr Med Res Opin. 2017 Mar;33(3):519-527. doi: 10.1080/03007995.2016.1267615. Epub 2016 Dec 14.PMID: 27966377

 

47. PMID: 28205152

Explaining Racial Disparities in Amputation Rates for the Treatment of Peripheral Artery Disease (PAD) Using Decomposition Methods.

Mustapha JA, Fisher BT Sr, Rizzo JA, Chen J, Martinsen BJ, Kotlarz H, Ryan M, Gunnarsson C.J Racial Ethn Health Disparities. 2017 Feb 15;4(5):784-95. doi: 10.1007/s40615-016-0261-9. Online ahead of print.PMID: 28205152 Free PMC article.

 

48. PMID: 27623069

Exploring Inpatient Hospitalizations and Morbidity in Patients With Adrenal Insufficiency.

Stewart PM, Biller BM, Marelli C, Gunnarsson C, Ryan MP, Johannsson G.J Clin Endocrinol Metab. 2016 Dec;101(12):4843-4850. doi: 10.1210/jc.2016-2221. Epub 2016 Sep 13.PMID: 27623069

 

49. PMID: 27549435

The economic value of INTUITY in aortic valve replacement.

Moore M, Barnhart GR, Chitwood WR Jr, Rizzo JA, Gunnarsson C, Palli SR, Grossi EA.J Med Econ. 2016 Oct;19(10):1011-7. doi: 10.1080/13696998.2016.1220949. Epub 2016 Aug 23.PMID: 27549435 Free article.

 

50. PMID: 27506820

Incidence, Treatment Intensity, and Incremental Annual Expenditures for Patients Experiencing a Cardiac Implantable Electronic Device Infection: Evidence From a Large US Payer Database 1-Year Post Implantation.

Sohail MR, Eby EL, Ryan MP, Gunnarsson C, Wright LA, Greenspon AJ.Circ Arrhythm Electrophysiol. 2016 Aug;9(8):e003929. doi: 10.1161/CIRCEP.116.003929.PMID: 27506820

 

51. PMID: 26053366

The Employee Absenteeism Costs of Rheumatoid Arthritis: Evidence From US National Survey Data.

Gunnarsson C, Chen J, Rizzo JA, Ladapo JA, Naim A, Lofland JH.J Occup Environ Med. 2015 Jun;57(6):635-42. doi: 10.1097/JOM.0000000000000461.PMID: 26053366

 

52. PMID: 25646745

The rate of magnetic resonance imaging in patients with spinal cord stimulation.

Desai MJ, Hargens LM, Breitenfeldt MD, Doth AH, Ryan MP, Gunnarsson C, Safriel Y.Spine (Phila Pa 1976). 2015 May 1;40(9):E531-7. doi: 10.1097/BRS.0000000000000805.PMID: 25646745 Free PMC article.

 

53. PMID: 25688677

Systemic opioid elimination after implantation of an intrathecal drug delivery system significantly reduced health-care expenditures.

Hatheway JA, Caraway D, David G, Gunnarsson C, Hinnenthal J, Ernst AR, Saulino M.Neuromodulation. 2015 Apr;18(3):207-13; discussion 213. doi: 10.1111/ner.12278. Epub 2015 Feb 17.PMID: 25688677

 

54. PMID: 25112834

Do patient-centered medical homes reduce emergency department visits?

David G, Gunnarsson C, Saynisch PA, Chawla R, Nigam S.Health Serv Res. 2015 Apr;50(2):418-39. doi: 10.1111/1475-6773.12218. Epub 2014 Aug 12.PMID: 25112834 Free PMC article.

 

55. PMID: 25335098

Variations in care: a retrospective database analysis of healthcare utilization patterns for patients with inflammatory bowel disease.

David G, Gunnarsson C, Lofland JH.J Med Econ. 2015 Feb;18(2):137-44. doi: 10.3111/13696998.2014.978454. Epub 2014 Oct 30.PMID: 25335098 Free article.

 

56. PMID: 25907200

Similar patient outcomes yet different hospital costs between flowable hemostatic agents.

David G, Lim S, Gunnarsson C, Kocharian R, Roy S.J Med Econ. 2015;18(9):735-45. doi: 10.3111/13696998.2015.1044994. Epub 2015 Jun 8.PMID: 25907200 Free article.

 

57. PMID: 25253504

Adjusting for comorbidities in cost of illness studies.

Rizzo JA, Chen J, Gunnarsson CL, Naim A, Lofland JH.J Med Econ. 2015 Jan;18(1):12-28. doi: 10.3111/13696998.2014.969434. Epub 2014 Oct 9.PMID: 25253504 Free article.

 

58. PMID: 25238882

Minithoracotomy for mitral valve repair improves inpatient and postdischarge economic savings.

Grossi EA, Goldman S, Wolfe JA, Mehall J, Smith JM, Ailawadi G, Salemi A, Moore M, Ward A, Gunnarsson C; Economic Workgroup on Valvular Surgery.J Thorac Cardiovasc Surg. 2014 Dec;148(6):2818-22.e1-3. doi: 10.1016/j.jtcvs.2014.08.029. Epub 2014 Aug 20.PMID: 25238882 Free article.

 

59. PMID: 25111633

Right anterior thoracotomy aortic valve replacement is associated with less cost than sternotomy-based approaches: a multi-institution analysis of 'real world' data.

Rodriguez E, Malaisrie SC, Mehall JR, Moore M, Salemi A, Ailawadi G, Gunnarsson C, Ward AF, Grossi EA; Economic Workgroup on Valvular Surgery.J Med Econ. 2014 Dec;17(12):846-52. doi: 10.3111/13696998.2014.953681. Epub 2014 Sep 19.PMID: 25111633 Free article.

 

60. PMID: 25730348

Switching from multiple daily injections to CSII pump therapy: insulin expenditures in type 2 diabetes.

David G, Gill M, Gunnarsson C, Shafiroff J, Edelman S.Am J Manag Care. 2014 Nov 1;20(11):e490-7.PMID: 25730348 Free article.

 

61. PMID: 34414245

The Effects of Catheter Ablation Therapy on Medication Use and Expenditures in Patients with Atrial Fibrillation.

Reynolds MR, David G, Gunnarsson C, March JL, Hao SC.J Health Econ Outcomes Res. 2014 Oct 1;2(1):15-28. doi: 10.36469/9881. eCollection 2014.PMID: 34414245 Free PMC article.

 

62. PMID: 25485250

Identification of undiagnosed diabetes and quality of diabetes care in the United States: cross-sectional study of 11.5 million primary care electronic records.

Holt TA, Gunnarsson CL, Cload PA, Ross SD.CMAJ Open. 2014 Oct 1;2(4):E248-55. doi: 10.9778/cmajo.20130095. eCollection 2014 Oct.PMID: 25485250 Free PMC article.

 

63. PMID: 24960484

Robotic-assisted versus laparoscopic colectomy: cost and clinical outcomes.

Davis BR, Yoo AC, Moore M, Gunnarsson C.JSLS. 2014 Apr-Jun;18(2):211-24. doi: 10.4293/108680813X13753907291035.PMID: 24960484 Free PMC article.

 

64. PMID: 24210834

Comparing robot-assisted thoracic surgical lobectomy with conventional video-assisted thoracic surgical lobectomy and wedge resection: results from a multihospital database (Premier).

Swanson SJ, Miller DL, McKenna RJ Jr, Howington J, Marshall MB, Yoo AC, Moore M, Gunnarsson CL, Meyers BF.J Thorac Cardiovasc Surg. 2014 Mar;147(3):929-37. doi: 10.1016/j.jtcvs.2013.09.046. Epub 2013 Nov 8.PMID: 24210834 Free article.

 

65. PMID: 23232289

The employee absenteeism costs of inflammatory bowel disease: evidence from US National Survey Data.

Gunnarsson C, Chen J, Rizzo JA, Ladapo JA, Naim A, Lofland JH.J Occup Environ Med. 2013 Apr;55(4):393-401. doi: 10.1097/JOM.0b013e31827cba48.PMID: 23232289

 

66. PMID: 23538182

Economic measurement of medical errors using a hospital claims database.

David G, Gunnarsson CL, Waters HC, Horblyuk R, Kaplan HS.Value Health. 2013 Mar-Apr;16(2):305-10. doi: 10.1016/j.jval.2012.11.010.PMID: 23538182 Free article.

 

67. PMID: 23377724

Racial disparities in receiving total hip/knee replacement surgery: the effect of hospital admission sources.

Chen J, Rizzo JA, Parasuraman S, Gunnarsson C.J Health Care Poor Underserved. 2013 Feb;24(1):135-51. doi: 10.1353/hpu.2013.0026.PMID: 23377724

 

68. PMID: 23743370

Costs and clinical outcomes of conventional single port and micro-laparoscopic cholecystectomy.

Chekan E, Moore M, Hunter TD, Gunnarsson C.JSLS. 2013 Jan-Mar;17(1):30-45. doi: 10.4293/108680812X13517013317635.PMID: 23743370 Free PMC article.

 

69. PMID: 22790905

Direct health care insurer and out-of-pocket expenditures of inflammatory bowel disease: evidence from a US national survey.

Gunnarsson C, Chen J, Rizzo JA, Ladapo JA, Lofland JH.Dig Dis Sci. 2012 Dec;57(12):3080-91. doi: 10.1007/s10620-012-2289-y. Epub 2012 Jul 12.PMID: 22790905

 

70. PMID: 22714547

Acute safety outcomes in younger and older patients with atrial fibrillation treated with catheter ablation.

Hao SC, Hunter TD, Gunnarsson C, March JL, White SA, Ladapo JA, Reynolds MR.J Interv Card Electrophysiol. 2012 Nov;35(2):173-82. doi: 10.1007/s10840-012-9690-5. Epub 2012 Jun 20.PMID: 22714547

 

71. PMID: 23265231

Risk of stroke and oral anticoagulant use in atrial fibrillation: a cross-sectional survey.

Holt TA, Hunter TD, Gunnarsson C, Khan N, Cload P, Lip GY.Br J Gen Pract. 2012 Oct;62(603):e710-7. doi: 10.3399/bjgp12X656856.PMID: 23265231 Free PMC article.

 

72. PMID: 21801089

The direct healthcare insurer and out-of-pocket expenditures of psoriasis: evidence from a United States national survey.

Gunnarsson C, Chen J, Rizzo JA, Ladapo JA, Naim A, Lofland JH.J Dermatolog Treat. 2012 Aug;23(4):240-54. doi: 10.3109/09546634.2010.550911. Epub 2011 Jul 31.PMID: 21801089 Free article.

 

73. PMID: 22130269

Video-assisted thoracoscopic lobectomy is less costly and morbid than open lobectomy: a retrospective multiinstitutional database analysis.

Swanson SJ, Meyers BF, Gunnarsson CL, Moore M, Howington JA, Maddaus MA, McKenna RJ, Miller DL.Ann Thorac Surg. 2012 Apr;93(4):1027-32. doi: 10.1016/j.athoracsur.2011.06.007. Epub 2011 Nov 30.PMID: 22130269

 

74. PMID: 22448082

A Passive Monitoring System in Assisted Living Facilities: 12-Month Comparative Study.

Patel PA, Gunnarsson C.Phys Occup Ther Geriatr. 2012 Mar;30(1):45-52. doi: 10.3109/02703181.2011.650298. Epub 2012 Feb 16.PMID: 22448082 Free PMC article.

 

75. PMID: 22373904

Health outcomes with catheter ablation or antiarrhythmic drug therapy in atrial fibrillation: results of a propensity-matched analysis.

Reynolds MR, Gunnarsson CL, Hunter TD, Ladapo JA, March JL, Zhang M, Hao SC.Circ Cardiovasc Qual Outcomes. 2012 Mar 1;5(2):171-81. doi: 10.1161/CIRCOUTCOMES.111.963108. Epub 2012 Feb 28.PMID: 22373904

 

76. PMID: 21994047

Ultrasonography guidance reduces complications and costs associated with thoracentesis procedures.

Patel PA, Ernst FR, Gunnarsson CL.J Clin Ultrasound. 2012 Mar-Apr;40(3):135-41. doi: 10.1002/jcu.20884. Epub 2011 Oct 12.PMID: 21994047

 

77. PMID: 21778260

In-hospital clinical and economic consequences of pulmonary wedge resections for cancer using video-assisted thoracoscopic techniques vs traditional open resections: a retrospective database analysis.

Howington JA, Gunnarsson CL, Maddaus MA, McKenna RJ, Meyers BF, Miller D, Moore M, Rizzo JA, Swanson S.Chest. 2012 Feb;141(2):429-435. doi: 10.1378/chest.10-3013. Epub 2011 Jul 21.PMID: 21778260

 

78. PMID: 23213500

Surgeons' volume-outcome relationship for lobectomies and wedge resections for cancer using video-assisted thoracoscopic techniques.

David G, Gunnarsson CL, Moore M, Howington J, Miller DL, Maddaus MA, McKenna RJ Jr, Meyers BF, Swanson SJ.Minim Invasive Surg. 2012;2012:760292. doi: 10.1155/2012/760292. Epub 2012 Nov 4.PMID: 23213500 Free PMC article.

 

79. PMID: 22011070

Evaluation of hospital complications and costs associated with using ultrasound guidance during abdominal paracentesis procedures.

Patel PA, Ernst FR, Gunnarsson CL.J Med Econ. 2012;15(1):1-7. doi: 10.3111/13696998.2011.628723. Epub 2011 Oct 19.PMID: 22011070 Free article.

 

80. PMID: 21777324

Healthcare utilization and expenditures in patients with atrial fibrillation treated with catheter ablation.

Ladapo JA, David G, Gunnarsson CL, Hao SC, White SA, March JL, Reynolds MR.J Cardiovasc Electrophysiol. 2012 Jan;23(1):1-8. doi: 10.1111/j.1540-8167.2011.02130.x. Epub 2011 Jul 21.PMID: 21777324

 

81. PMID: 21777752

Statins and risk of cancer: a retrospective cohort analysis of 45,857 matched pairs from an electronic medical records database of 11 million adult Americans.

Marelli C, Gunnarsson C, Ross S, Haas S, Stroup DF, Cload P, Clopton P, DeMaria AN.J Am Coll Cardiol. 2011 Jul 26;58(5):530-7. doi: 10.1016/j.jacc.2011.04.015.PMID: 21777752 Free article.

 

82. PMID: 20524070

Adenosine-stress cardiac magnetic resonance imaging in suspected coronary artery disease: a net cost analysis and reimbursement implications.

Pilz G, Patel PA, Fell U, Ladapo JA, Rizzo JA, Fang H, Gunnarsson C, Heer T, Hoefling B.Int J Cardiovasc Imaging. 2011 Jan;27(1):113-21. doi: 10.1007/s10554-010-9645-9. Epub 2010 Jun 4.PMID: 20524070 Free PMC article.

 

83. PMID: 20850391

Comparing robot-assisted with conventional laparoscopic hysterectomy: impact on cost and clinical outcomes.

Pasic RP, Rizzo JA, Fang H, Ross S, Moore M, Gunnarsson C.J Minim Invasive Gynecol. 2010 Nov-Dec;17(6):730-8. doi: 10.1016/j.jmig.2010.06.009. Epub 2010 Sep 17.PMID: 20850391

 

84. PMID: 20630511

Projected increased growth rate of anesthesia professional-delivered sedation for colonoscopy and EGD in the United States: 2009 to 2015.

Inadomi JM, Gunnarsson CL, Rizzo JA, Fang H.Gastrointest Endosc. 2010 Sep;72(3):580-6. doi: 10.1016/j.gie.2010.04.040. Epub 2010 Jul 13.PMID: 20630511

 

85. PMID: 20568974

Comparison of GE Centricity Electronic Medical Record database and National Ambulatory Medical Care Survey findings on the prevalence of major conditions in the United States.

Crawford AG, Cote C, Couto J, Daskiran M, Gunnarsson C, Haas K, Haas S, Nigam SC, Schuette R, Yaskin J.Popul Health Manag. 2010 Jun;13(3):139-50. doi: 10.1089/pop.2009.0036.PMID: 20568974 Free article.

 

86. PMID: 20521902

Prevalence of obesity, type II diabetes mellitus, hyperlipidemia, and hypertension in the United States: findings from the GE Centricity Electronic Medical Record database.

Crawford AG, Cote C, Couto J, Daskiran M, Gunnarsson C, Haas K, Haas S, Nigam SC, Schuette R.Popul Health Manag. 2010 Jun;13(3):151-61. doi: 10.1089/pop.2009.0039.PMID: 20521902 Free article.

 

87. PMID: 19730950

Comparison of the clinical and economic outcomes between open and minimally invasive appendectomy and colectomy: evidence from a large commercial payer database.

Fullum TM, Ladapo JA, Borah BJ, Gunnarsson CL.Surg Endosc. 2010 Apr;24(4):845-53. doi: 10.1007/s00464-009-0675-0.PMID: 19730950 Free PMC article.

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88. PMID: 20190656

Osteoarthritis and absenteeism costs: evidence from US National Survey Data.

Kotlarz H, Gunnarsson CL, Fang H, Rizzo JA.J Occup Environ Med. 2010 Mar;52(3):263-8. doi: 10.1097/JOM.0b013e3181cf00aa.PMID: 20190656

 

89. PMID: 19950287

Insurer and out-of-pocket costs of osteoarthritis in the US: evidence from national survey data.

Kotlarz H, Gunnarsson CL, Fang H, Rizzo JA.Arthritis Rheum. 2009 Dec;60(12):3546-53. doi: 10.1002/art.24984.PMID: 19950287 Free article.

 

90. PMID: 19835801

Open abdominal versus laparoscopic and vaginal hysterectomy: analysis of a large United States payer measuring quality and cost of care.

Warren L, Ladapo JA, Borah BJ, Gunnarsson CL.J Minim Invasive Gynecol. 2009 Sep-Oct;16(5):581-8. doi: 10.1016/j.jmig.2009.06.018.PMID: 19835801

 

91. PMID: 19818321

Cost-effectiveness of multidetector computed tomography compared with myocardial perfusion imaging as gatekeeper to invasive coronary angiography in asymptomatic firefighters with positive treadmill tests.

Budoff MJ, Karwasky R, Ahmadi N, Nasserian C, Pratt F, Stephens J, Chang WW, Flores FR, Rizzo JA, Gunnarsson CL, McKay CR.J Cardiovasc Comput Tomogr. 2009 Sep-Oct;3(5):323-30. doi: 10.1016/j.jcct.2009.08.004. Epub 2009 Aug 14.PMID: 19818321

 

92. PMID: 18657101

The effects of laparoscopic surgery and nosocomial infections on the cost of care: evidence from three common surgical procedures.

Gunnarsson C, Rizzo JA, Hochheiser L.Value Health. 2009 Jan-Feb;12(1):47-54. doi: 10.1111/j.1524-4733.2008.00422.x. Epub 2008 Jul 24.PMID: 18657101 Free article.

 

93. PMID: 18297345

The effects of laparoscopic cholecystectomy, hysterectomy, and appendectomy on nosocomial infection risks.

Brill A, Ghosh K, Gunnarsson C, Rizzo J, Fullum T, Maxey C, Brossette S.Surg Endosc. 2008 Apr;22(4):1112-8. doi: 10.1007/s00464-008-9815-1. Epub 2008 Feb 23.PMID: 18297345 Free PMC article.