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TTK Chitra tilting disc valve: Hemodynamic evaluation

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Abstract

Background and aim of study

The TTK Chitra mechanical heart valve is being widely used in India. We present a hemodynamic study of this valve implanted in the mitral and aortic positions.

Methods

547 patients had 654 valves implanted in the aortic and/or mitral positions. 230 patients underwent an echocardiography examination with Doppler evaluation, for estimating the effective orifice area and transvalvular gradients.

Results

In the mitral position, for valve sizes 25, 27 and 29 mm, the mean gradients (in mm Hg) are 5±3, 4±2 and 4±2, and the Effective orifice areas (in cm2) are 2.8±0.8, 3.1±0.7 and 2.9±0.7 respectively. In the aortic position, for valve sizes 21 and 23 mm, the gradients (in mm Hg) are 10±5 and 9±4, and the Effective orifice areas (in cm2) are 1.5±0.5 and 1.8±0.3 respectively.

Conclusions

The TTK Chitra valve is hemodynamically comparable to other mechanical valves.

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Authors and Affiliations

  1. Dept of Cardiovascular & Thoracic Surgery, LTMMC & LTMGH, Sion, 400 022, Mumbai, India

    Pawan Kumar M.Ch (Lecturer), Raghvendra Chikkatur MS, Pranav Kandhachar MS, Rajesh Parida MS, Vinod Ahuja MS, Uday Eknath Jadhav M.Ch, DNB & Anil Tendolkar MS

  2. Mumbai

    Bharat Dalvi DM (Consultant Cardiologist)

Authors
  1. Pawan Kumar M.Ch
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  2. Bharat Dalvi DM
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  3. Raghvendra Chikkatur MS
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  4. Pranav Kandhachar MS
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  5. Rajesh Parida MS
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  6. Vinod Ahuja MS
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  7. Uday Eknath Jadhav M.Ch, DNB
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  8. Anil Tendolkar MS
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Correspondence to Pawan Kumar M.Ch.

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Kumar, P., Dalvi, B., Chikkatur, R. et al. TTK Chitra tilting disc valve: Hemodynamic evaluation. Indian J Thorac Cardiovasc Surg 20, 117–121 (2004). https://doi.org/10.1007/s12055-004-0060-5

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  • DOI: https://doi.org/10.1007/s12055-004-0060-5

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