 Hello I am Dr. Murli Krishna, consultant cardiac surgeon at Manipal Hospital in Bangalore. Sometimes the scar is extremely small, it can vary from 3 cm to around 5 cm depending on what the lesion is and depending on the weight of the patient. And since it is in a completely hidden area of the body, the scar is sometimes not seen if the patient do not wish to disclose to anyone that they are having a hard procedure, they may not disclose it because no one will be able to see the scar because it is in a completely hidden area of the body. So that is the main advantage, if you look like that the main advantage of it is also cosmetic because patients other relatives or any relatives of the patient will not know that the patient is undergoing a hard procedure.