'chemical overload'

Percutaneous Nephrolithotomy (PCNL) Kidney stones are formed in the urinary tract due to the crystallization of chemical compounds in the urine. PCNL is a technique used to remove certain stones in the kidney or upper ureter (the tube that drains urine from the kidney to the bladder) that are too large for other forms of stone treatment such as shock wave lithotripsy or ureteroscopy. The Surgery This procedure has been performed on many patients over the last several years and is an accepted standard of care for patients with kidney stones that are large, very firm, or resistant to other forms of stone treatment. As such it has replaced open operations for kidney stones in the vast majority of patients. Typically, the length of the surgery is one to two hours. The surgery is performed by making a small 1 cm incision in the patient’s flank area. A tube is placed through the incision into the kidney under x-ray guidance with the help of a C-Arm. A small telescope is then passed through the tube in order to visualize the stone, break it up and remove it from the body. If necessary a laser or other device called a lithotripter may be used to break up the stone before it can be removed. This procedure has resulted in significantly less post-operative pain, shorter hospital stays, and an earlier return to work and daily activities when compared to open stone surgery. This technique also has a higher success rate for clearing all stones in one setting than other techniques such as extracorporeal shock wave lithotripsy (ESWL), which often require several attempts. Potential Risks and Complications Although this procedure has proven to be very safe, as in any surgical procedure there are risks and potential complications. The safety and complication rates are similar when compared to open surgery. Potential risks include: Bleeding Infection Tissue / Organ Injury Conversion to open surgery Failure to Remove the Stone

Male circumcision is an operation to remove the foreskin that covers the tip of the penis. The functions of the foreskin include protecting the head of the penis and contributing to sexual sensations. While recent research suggests that circumcision may bring some medical benefits, some doctors believe these are too small to justify surgery. A medical circumcision is a circumcision performed to treat a disease, such as pathological phimosis (lichen sclerosis), recurrent balanitis or recurrent urinary tract infections. A request circumcision is a circumcision performed for non-medical reasons, such as parental preference, religious reasons or to potentially prevent disease at some future time.There are different methods of circumcision. Either local or general anaesthesia should always be used. The procedure involves numbing the area with local anaesthetic creams or injection. A bell-shaped instrument is inserted under the foreskin to separate it from the penis. The foreskin is then removed using scissors or a scalpel. Alternatively, circumcision can be performed as a formal surgical procedure, using dissolving sutures or tissue glue.