Recents in Beach

ESWL (Extracorporeal Shock Wave Lithotripsy)

ESWL (Extracorporeal Shock Wave Lithotripsy)


📌 High   energy   shock   waves  are   generated   outside   the   patient’s   body,   which   are   focused   on   stones   via   Fluoroscopy   or   Ultrasound.

📌 The change in density   between   the   soft renal tissue and hard stone   releases  energy   at   the   stone   surface   which   causes   “Compression Induced Tensile Cracking of stones”.

📌 Incoming   shock   wave   causes   fragmentation   of   stones   from   erosion and   shattering.

📌 The   stone   fragments broken  into   small   pieces   may   pass   down   the   ureter. 

📌 Difficult   (hard)   stones   for ESWL -

 
👉 Brushite,   Hydroxyapatite,   Cystine,   Calcium   oxalate   monohydrate   (BHC-2) 

📌 Factors responsible for decreasing the chances of stone free status -


👉 Stone burden -  

🖊 Multiple stones,   > 2 cm and staghorn calculi

👉 ESWL   is   best   suited   for   stone   <   2   cm   in   renal   pelvis   or   calyces   with   no   distal   obstruction 

👉 Reduced clearance -  

🖊 Lower calyceal location,   marked   hydronephrosis or scarring,   calyceal diverticulum or horseshoe kidney

👉 Stone composition - 

〽️ Difficult - Brushite,   Hydroxyapatite,   Cystine,   Calcium oxalate monohydrate (BHC-2)

〽️ Breakable-   Uric   acid,   struvite,   Calcium   oxalate   dihydrate.


📌 Contraindications of ESWL - 


🖊 Absolute -

👉 Pregnancy  

👉 Bleeding disorder

🖊 Relative -

👉 UTI

👉 Unrelieved distal obstruction

👉 Cardiac pacemaker

👉 Uncontrolled hypertension

👉 Severe orthopaedic deformity

📌 Complications of ESWL -


👉 Acute injury to the renal parenchyma   leading   to   hematuria and edema  around   the   kidney

👉 Chronic renal injury   leading   to   accelerated   rise in the systemic blood pressure,   decrease in renal function and increase in rate of stone recurrence

👉 Lung parenchymal injury (if exposed) 

👉 Extrasystoles 

👉 Infection   due   to   release   of   bacteria   in   fragment



#Urology #Surgery
#The_Conceptual_Codon


Post a Comment

0 Comments