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Original Research 
RMJ. 2022; 47(2): 392-395


Effect of skin to stone distance on non-contrast computed tomography and mean attenuation value on the performance of shock wave lithotripsy in kidney stone disease

Ahmadullah, Sunil Kumar Panjwani, Muhammad Imran Malik, Mahmood Ahmed Memon, Shahzad Ali, Mehran Khan Lashari.

Abstract
Objective: To determine mean skin to stone distance (SSD) for successful disintegration of renal stones in patients undergoing shock wave lithotripsy (SWL) for the treatment of renal stone.
Methodology: This descriptive cross-sectional study was conducted at the department of Urology, Sindh Institute of Urology and Transplantation, Karachi. A total number of 91 patients having stone size >4 mm was included in the study. Mean SSD was measured using NCCT before treatment with SWL. Data analysis was carried out using SPSS version 20.0.
Results: Out of 91 patients, there were 59 (64.8%) male and 32 (35.2%) females. The mean age of patients was 45.75+10.03 years. Mean duration of kidney stone disease was 8.28+4.21 months. Mean size of kidney stone was 12.95+3.24 mm. Mean SSD was 70.72+6.01 mm. Complete stone disintegration occurred in 84 (92.3%) patients while it was unsuccessful in seven (7.7%) patients. Mean SSD in patients with complete stone disintegration was 69.52+4.45 mm and was 94.71+2.28 in patients with unsuccessful stone disintegration (p<0.001).
Conclusion: Mean SSD was 69.52+4.45 mm in patients with successful stone clearance. SSD was higher in overweight to obese patients as compared to the normal weight patients.

Key words: Shock wave lithotripsy, non-contrast computed tomography, skin to stone distance, renal stone.


 
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How to Cite this Article
Pubmed Style

Ahmadullah, Panjwani SK, Malik MI, Memon MA, Ali S, Lashari MK. Effect of skin to stone distance on non-contrast computed tomography and mean attenuation value on the performance of shock wave lithotripsy in kidney stone disease. RMJ. 2022; 47(2): 392-395.


Web Style

Ahmadullah, Panjwani SK, Malik MI, Memon MA, Ali S, Lashari MK. Effect of skin to stone distance on non-contrast computed tomography and mean attenuation value on the performance of shock wave lithotripsy in kidney stone disease. https://www.rmj.org.pk/?mno=124896 [Access: May 20, 2022].


AMA (American Medical Association) Style

Ahmadullah, Panjwani SK, Malik MI, Memon MA, Ali S, Lashari MK. Effect of skin to stone distance on non-contrast computed tomography and mean attenuation value on the performance of shock wave lithotripsy in kidney stone disease. RMJ. 2022; 47(2): 392-395.



Vancouver/ICMJE Style

Ahmadullah, Panjwani SK, Malik MI, Memon MA, Ali S, Lashari MK. Effect of skin to stone distance on non-contrast computed tomography and mean attenuation value on the performance of shock wave lithotripsy in kidney stone disease. RMJ. (2022), [cited May 20, 2022]; 47(2): 392-395.



Harvard Style

Ahmadullah, Panjwani, . S. K., Malik, . M. I., Memon, . M. A., Ali, . S. & Lashari, . M. K. (2022) Effect of skin to stone distance on non-contrast computed tomography and mean attenuation value on the performance of shock wave lithotripsy in kidney stone disease. RMJ, 47 (2), 392-395.



Turabian Style

Ahmadullah, Sunil Kumar Panjwani, Muhammad Imran Malik, Mahmood Ahmed Memon, Shahzad Ali, and Mehran Khan Lashari. 2022. Effect of skin to stone distance on non-contrast computed tomography and mean attenuation value on the performance of shock wave lithotripsy in kidney stone disease. Rawal Medical Journal, 47 (2), 392-395.



Chicago Style

Ahmadullah, Sunil Kumar Panjwani, Muhammad Imran Malik, Mahmood Ahmed Memon, Shahzad Ali, and Mehran Khan Lashari. "Effect of skin to stone distance on non-contrast computed tomography and mean attenuation value on the performance of shock wave lithotripsy in kidney stone disease." Rawal Medical Journal 47 (2022), 392-395.



MLA (The Modern Language Association) Style

Ahmadullah, Sunil Kumar Panjwani, Muhammad Imran Malik, Mahmood Ahmed Memon, Shahzad Ali, and Mehran Khan Lashari. "Effect of skin to stone distance on non-contrast computed tomography and mean attenuation value on the performance of shock wave lithotripsy in kidney stone disease." Rawal Medical Journal 47.2 (2022), 392-395. Print.



APA (American Psychological Association) Style

Ahmadullah, Panjwani, . S. K., Malik, . M. I., Memon, . M. A., Ali, . S. & Lashari, . M. K. (2022) Effect of skin to stone distance on non-contrast computed tomography and mean attenuation value on the performance of shock wave lithotripsy in kidney stone disease. Rawal Medical Journal, 47 (2), 392-395.








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