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Borde D, Chidambaram K, Sundar AS, Kulkarni V, Jasapara A, Shetty V, Gopinath R, Pathy A, Viswanath VVR, Asegaonkar B, Apsingkar P, Takalkar U, Joshi S, Chakravarthy M. Normative Transesophageal Echocardiographic Values of Cardiac Structures in the Indian Population-Indian Normative TEE Measurements (INTEEM) Study. J Cardiothorac Vasc Anesth 2021; 36:184-194. [PMID: 34344599 DOI: 10.1053/j.jvca.2021.07.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 06/16/2021] [Accepted: 07/05/2021] [Indexed: 11/11/2022]
Abstract
OBJECTIVES Information on normative reference values for cardiac structures is critical for the accurate application of echocardiography for guiding clinical decision-making. Many studies using transthoracic echocardiography (TTE) have shown that Indians have smaller diameters of various cardiac structures. There are no normative studies for transesophageal echocardiography (TEE). The authors observed dimensions of various cardiac structures in healthy Indian patients under general anesthesia using TEE and compared them with existing guidelines from non-Indian data. DESIGN The Indian Normative TEE Measurements study was a multicenter, prospective observational study conducted in India. SETTING Operating rooms for noncardiac surgeries in tertiary care-level hospitals. PARTICIPANTS Adult patients undergoing noncardiac surgery who were free from any cardiac, respiratory, and renal diseases and had no contraindications for TEE. INTERVENTIONS After inducing general anesthesia and achieving stable hemodynamic conditions, a comprehensive TEE examination was performed and various measurements were made. MEASUREMENTS AND MAIN RESULTS For each of the 83 patients undergoing noncardiac surgery, 39 various measurements for left ventricle, right ventricle, both atria, and all valves were made. This included diameters and functional parameters. They were analyzed in a vendor-neutral software off-line. The absolute values of many of the measurements were higher in men, but when indexed to body surface area (BSA) they were similar in both sexes. The values were lower than most of the Western data but matched previous Indian studies using TTE. CONCLUSIONS The authors present normative values of various echocardiographic parameters using TEE. Because of its variations, it is recommended to use India-specific data to make decisions in Indian patients. It may be prudent to use BSA-indexed values during decision-making.
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Affiliation(s)
- Deepak Borde
- Department of Cardiac Anesthesia, Ozone Anesthesia Group, Aurangabad, Maharashtra, India.
| | - Kumar Chidambaram
- Department of Cardiac Anesthesia, Madras Medical Mission, Chennai, Tamilnadu, India
| | - Ayya Syama Sundar
- Department of Cardiac Anesthesia, Nizam's Institute of Medical Sciences, Hyderabad, Telanagana, India; Department of Anesthesiology, All India Institute of Medical Sciences, Bibinagar, Hyderabad, Telangana, India
| | - Venugopal Kulkarni
- Department of Cardiac Anesthesia, Citizen's Hospital, Hyderabad, Telangana, India
| | - Amish Jasapara
- Department of Cardiac Anesthesia, Fortis Hospitals, Mulund, Mumbai, Maharashtera, India
| | - Vijay Shetty
- Department of Cardiac Anesthesia, Fortis Hospitals, Mulund, Mumbai, Maharashtera, India
| | - Ramachandra Gopinath
- Department of Cardiac Anesthesia, Nizam's Institute of Medical Sciences, Hyderabad, Telanagana, India; Department of Anesthesiology, ESIC Medical College and Super Speciality Hospital, Hyderabad, Telangana, India
| | - Archana Pathy
- Department of Cardiac Anesthesia, Nizam's Institute of Medical Sciences, Hyderabad, Telanagana, India
| | - V V Raja Viswanath
- Department of Cardiac Anesthesia, Citizen's Hospital, Hyderabad, Telangana, India
| | - Balaji Asegaonkar
- Department of Cardiac Anesthesia, Ozone Anesthesia Group, Aurangabad, Maharashtra, India
| | - Pramod Apsingkar
- Department of Cardiac Anesthesia, Ozone Anesthesia Group, Aurangabad, Maharashtra, India
| | - Unmesh Takalkar
- Department of Surgery, United CIIGMA Hospital, Aurangabad, Maharashtra, India
| | - Shreedhar Joshi
- Department of Cardiac Anesthesia, Narayana Institute of Cardiac Sciences, Bengaluru, Karnataka, India
| | - Murali Chakravarthy
- Department of Cardiac Anesthesia, Fortis Hospitals, Bengaluru, Karnataka, India
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