Study on indications and effects of pulmonary valve resection in tetralogy of Fallot surgery - 23

APPENDIX 4

Determine Z-score by body skin area

Step 1: Calculate body surface area (BSA) based on weight and height Step 2: Calculate normal values ​​based on body surface area

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- Normal right atrial area (RAA) according to BSA:

𝐷𝑇𝑁𝑃 𝑏 ì 𝑛 ℎ 𝑡 ℎ u 𝑛𝑔 𝑡 ℎ 𝑒𝑜 𝐵𝑆𝐴 = 𝑝𝑜𝑤𝑒𝑟 [10, (1,002 + 0.852 log 𝐵𝑆𝐴 )]

- Normal right ventricular area (RVA) according to BSA:

𝐷𝑇𝑇𝑃 𝑏 ì 𝑛 ℎ 𝑡 ℎ ươ 𝑛𝑔 𝑡 ℎ 𝑒𝑜 𝐵𝑆𝐴 = exp [2.795 + 0.9566 𝐿𝑁 ( 𝐵𝑆𝐴 )]

- Normal tricuspid valve ring diameter (TRV) according to BSA: D 𝐾𝑉𝑉 3 𝐿 𝑏 ì 𝑛 ℎ 𝑡 ℎ ươ 𝑛𝑔 𝑡 ℎ 𝐵𝑆𝐴 = exp [1.084 + 0.4945 𝐿𝑁 ( 𝐵𝑆𝐴 )]

- Normal funnel diameter according to BSA:

The coefficient of variation of the mean square root of the square root of the square root of the square root of the square root = 𝑝𝑜𝑤𝑒𝑟 [10, (0.269 + 0.395 log 𝐵𝑆𝐴 )]

- Normal pulmonary valve ring diameter (PAV) according to BSA:

The coefficient of variation of the coefficient 0.6367 = exp [ 0.6367 + 0.5028 𝐿𝑁 ( 𝐵𝑆𝐴 ) ]

- Normal pulmonary artery diameter ((PAD) according to BSA): 𝐾𝑇 𝑀𝑃 𝑏 ì 𝑛 ℎ 𝑡 ℎ ươ 𝑛𝑔 𝑡 ℎ 𝐵𝑆𝐴 = exp [0.6067 + 0.4941 𝐿𝑁 ( 𝐵𝑆𝐴 )]

- Normal left pulmonary artery diameter (LPA) according to BSA: LPA diameter ( LPA ) = exp [ 0.2024 + 0.6039 𝐿𝑁 ( 𝐵𝑆𝐴 ) ]

- Normal right pulmonary artery diameter (RBA) according to BSA: RPA diameter = exp [ 0.1396 + 0.5495 𝐿𝑁 ( 𝐵𝑆𝐴 ) ] ( Unit : BSA is m2; diameters are mm ; area dimensions are cm2 )

Step 3: Calculate the patient's Z-score

Formula for calculating pulmonary valve Z-score: Z 𝑣𝑣 đ 𝑚𝑝 =

[ 𝐿𝑛 (Đ 𝐾 𝑣𝑣 𝑚𝑝 ℎ bà 𝑖 đ 𝑜 ) − 𝐿𝑛 ( Đ 𝐾 𝑣𝑣 𝑚𝑝 ℏ ì 𝑛 ℎ ươ 𝑛𝑔 )] divided by 0.1143

Formula for calculating Z of pulmonary artery: ZZ 𝑡 ℎ â 𝑛 đ 𝑚𝑝 =

[ 𝐿𝑛 (Đ 𝐾 ℎ â 𝑛 đ 𝑜 ) − 𝐿𝑛 (Đ 𝐾 ℎ â 𝑛 ì 𝑛 ℎ ươ 𝑛𝑔 )] divided by 0.134 Formula for calculating the Z-score of the left pulmonary artery:

Z-index of the DMP 𝑡𝑟 á 𝑖 =

[ 𝐿𝑛 (Đ 𝐾 đ 𝑚𝑝 𝑡𝑟 á 𝑖 đ 𝑜 ) − 𝐿𝑛 (Đ 𝐾 đ 𝑚𝑝 𝑡𝑟 á 𝑖 𝑏 ì 𝑛 ℎ 𝑡 ℎ ương 𝑛g )] divided by 0.1446 Formula for calculating the Z-score of the right pulmonary artery:

Z-index of the DMP 𝑝 ℎ 𝑖 =

[ 𝐿𝑛 (Đ 𝐾 đ 𝑚𝑝 ℎ bà 𝑖 đ 𝑜 ) − 𝐿𝑛 (Đ 𝐾 đ 𝑚𝑝 ℎ bà 𝑖 ì 𝑛 ℎ ươ 𝑛𝑔 ) ] divided by 0.1294

APPENDIX 5:

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