“…Factors affecting the success of the procedure include the age of the patient, the experience of the clinician carrying out the procedure, the needle being advanced with the stylet in place, the type of stylet employed, the use of topical anesthesia, and the position in which the patient is placed [ 13 , 28 , 36 , 40 ]. Researchers are agreed that factors such as a patient’s age of less than one year, not using a local anesthetic, delayed stylet removal, and increased movements on the part of the patient can result in failed LP [ 9 , 13 , 36 ]. However, several studies indicate no association between the LP position and the level of training of the practicing clinician (physician or intern), the body weight of the infant, or corrected gestational age in preterm infants [ 3 , 28 , 41 , 42 ] In the present study, all patients were administered topical lidocaine and intravenous parasetamol before LP.…”