Nitin Roper, MD

Alana Elise Sigmund, MD, FHM

Internal Medicine, Perioperative Medicine
Nitin Roper, MD

Alana Elise Sigmund, MD, FHM

Hospital for Special Surgery
535 East 70th Street
New York, NY 10021

Tel: 646.797.8450
Fax: 917.260.4597

Hospital for Special Surgery
535 East 70th Street
New York, NY 10021

Tel: 646.797.8450
Fax: 917.260.4597

Dr. Alana Sigmund was born and raised in Flushing, Queens. She received her Bachelors of Arts degree in Spanish and Biological Basis of Behavior, graduating magna cum laude in 2001 from the University of Pennsylvania (UPENN). She received her MD degree, graduating in 2005, also from UPENN in Philadelphia, PA. Her internship year and two residency years in internal medicine were completed at NewYork-Presbyterian/Columbia University Medical Center. She then joined New York University Medical Center serving as an Assistant Professor of Medicine and at the Hospital for Joint Diseases as an Attending Physician in internal medicine.

Dr. Sigmund has had a long-standing academic and clinical interest in perioperative medicine and high-quality care. Her research into preoperative stress testing and postoperative management of arthroplasty patients has appeared in JAMA Internal Medicine, The Journal of Arthroplasty and most recently in Mayo Clinic Proceedings. 

In 2016, Dr. Sigmund was named the Medical Director for Arthroplasty at Hospital for Special Surgery (HSS). In her role as the Medical Director, she oversees the medical care of postoperative arthroplasty patients by attending daily medical rounds. Rounds provide physician assistants, nurses, care managers and physical therapists the opportunity to collaborate in order to provide excellent care for arthroplasty patients. In addition, Dr. Sigmund is actively involved in HSS committees and work groups shaping policies around medical care and management of arthroplasty patients to ensure the best possible outcome for patients.

Dr. Sigmund was appointed to the Society of Hospital Medicine Research committee in 2016 and is an active member. 

Back in the Game Patient Stories


Medical Director, Adult Reconstruction and Joint Replacement Division, Hospital for Special Surgery
Assistant Professor of Medicine, Weill Cornell Medical College


Perioperative Medicine
Internal Medicine

Special Expertise

Perioperative Medicine


Research Committee Member, Society of Hospital Medicine
Fellow, Society of Hospital Medicine
Member, Society of Hospital Medicine


University of Pennsylvania School of Medicine, PA


Columbia Presbyterian Medical Center, NY


Columbia Presbyterian Medical Center, NY


American Board of Internal Medicine Diplomate

State Licensure

New York

Editorial Appointments

Reviewer, Journal of Hospital Medicine

Selected Books/Chapters

Cohen AE "Obstetrics and Gynecology" First Aid Q&A for the USMLE Step to CK and USMLE Rx Step 2 CK Qmax Test Bank.Le, Shivaram, Klein ed: McGraw Hill Medical 2008

Cohen AE "Pleural Effusions" Clinical Decision Support, Hospital Medicine Weise, Glasheen ed: DecisionSupport in Medicine 2013

Selected Publications

Sigmund AE, Fang Y, Chin M, Reynolds HR, Horwitz LI, Dweck E, Iturrate E. Postoperative Tachycardia: Clinically Meaningful or Benign Consequence of Orthopedic Surgery? Mayo Clinic Proceedings. Volume 92, Issue 1, January 2017, Pages 98–105.

Sigmund AE, Stevens E, Blitz J, Ladapo J "Use of Pre-Operative Testing and Physician Response to Professional Society Guidance" JAMA Internal Medicine Vol. 175 Issue 8, August 2015.

Ramme AJ, Iturrate E, Dweck E, Steiger DJ, Hutzler LH, Fang Y, Wang B, Bosco JA, Sigmund AE. End Tidal Carbon Dioxideas a Screening Tool for Computing Tomography Angiogram in Postoperative Orthopaedic Patients Suspected of Pulmonary Embolism. J Arthroplasty. 2016 Mar 25.

Jacobs, Ramon E A; McNeill, Katharine; Volpicelli, Frank M; Warltier, Karin; Iturrate, Eduardo, Okamura, Charles; Adler,Nicole; Sigmund, Alana; Mednick, Aron; Wertheimer, Benjamin; Hochman, Katherine "Treatment of Leptomeningeal Carcinomatosis in a Patient with Metastatic Cholangiocarcinoma" Vol. 2 Issue 1 July 2015.

Cohen AE, Lautenbauch E, Morales K, Linkin D. "Risk Factors for Flouroquinolone-Resistant E. Coli Infections Among VANursing Home Patients." American Journal of Medicine Vol. 119, Issue 11, November 2006.

Selected Presentations

Venous Thrombosis Symposium Update 2016 May 6th, 2016

Hospital Medicine: Update in Hospital Medicine December 3rd, 2016

Research Interests

As Director of the Arthroplasty Service at the Hospital for Special Surgery, Dr. Sigmund is continually presented with clinical scenarios that serve as the basis for her published research. Whether it's understanding if a patient really needs a certain test before a procedure, or a patient has an elevated heart rate after a procedure, the daily dilemmas of perioperative care naturally point towards avenues of research that are of a high clinical importance in orthopedic surgery.

In her role as a medical director for an orthopedic surgical service, she can collaborate effectively with surgical colleagues to address clinical issues relevant to the orthopedic patient. For example, through collaboration with colleagues in her own department as well as the Department of Orthopedic Surgery, she published a project to the Journal of Arthroplasty examining the role of End Tidal CO2 in assessing patients for pulmonary embolism in the postoperative period.

Dr. Sigmund also recently collaborated with colleagues in the Department of Population Health and the Department of Anesthesia to complete "Use of Preoperative Testing and Physician Response to Professional Society Guidance," examining national trends in the use of preoperative testing, which was then published in JAMA Internal Medicine.

She is now collaborating with colleagues in orthopedic surgery and rheumatology to address the best way to identify who may have a pulmonary embolus after surgery.

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Directions to The Pavilion

My office is located at The Pavilion, 541 East 71st St. The main entrance to The Pavilion is on the north side of 71st Street underneath the sky bridge that connects the main hospital to the Belaire Building.

Pavilion map Please see directions from other HSS locations:

  • From the Main Hospital (535 East 70th St):
    Enter the Hospital lobby and take the West elevators to the 2nd Floor. Upon exiting the elevator, turn right and continue down the hallway and over the sky bridge. Once across the sky bridge, you will see a set of elevators on your left. Take the elevator to my office.
  • From the Belaire Building Main Entrance (525 East 71st St):
    Enter the Belaire lobby and take the front elevators to the 2nd Floor. Upon exiting the elevator, turn left and follow the hallway around until you see another set of elevators on your right. Take the elevator to my office.
  • From the Belaire Building 72nd Street Entrance (524 East 72nd St):
    Enter the Belaire building and walk down the stairs. Follow the hallway around, past the first set of elevators on your left. Continue down the hall and past the windows until you see another set of elevators on your right. Take the elevator to my office.