Chronic  pain is a common disorder that has detrimental effects on physical and psychological health, quality of life, employment, and economic well-being.

Pain is currently extensively studied, but therapeutic options to date are limited, and duration of the symptoms tends to make pain increasingly resistant to treatment. Because medical treatments have limited effects on patients with chronic pain, patients are twice as likely to commit suicide and lifetime prevalence of suicide attempts is about 10%

The management of pain is a complex problem. Cancer related pain, post-operative pain, and painful flares of chronic pain are difficult to treat. However, pain management is a fundamental human right and so clinicians need to be knowledgeable about analgesics and interventional approaches to pain management. Interventional pain procedures for management of pain have significantly evolved over the last decade.

A major reason for recent advancements could be attributed to the widespread use of image-guided techniques utilizing fluoroscopy and contrast media. This change improved the delivery of medications to the areas of pathology and potentially contributed to better outcomes and decreased complication rates.

Radiofrequency (RF) Neurolysis Techniques:

Radiofrequency is a high frequency electrical current, transmitted from an active electrode (lesion electrode) through the body and to the passive electrode  (dispersive electrode). The current causes vibration of the electrons in the tissues in the vicinity of the RF probe, resulting in an increase in temperature.

The greater the voltage and the tissue impedance, the higher the temperature that develops within the tissues. The advantages of RF include controlled lesion size, accurate temperature monitoring, limited need for anesthesia, preciseprobe placement, low incidence of morbidity or mortality, and rapid post procedure recovery.


Professor Doctor. Ahmed Abd El Bar

Brief about him

I am specially interested in interventional pain management , I was able to establish pain management service at our university that offered our patients newer treatment modalities namely, Percutaneous RF sympathectomy (Thoracic, Celiac, Lumbar), percutaneous RF trigeminal gangliolysis, Dorsal root ganglia and Facet denervation (Cervical, Thoracic, Lumbar), DREZ, Sphenopalatine ganglion Block and Epiduroscopy .

Post Graduate studies:

Master of Surgery, Thesis entitled "Recent Advances of Endoscopic Discectomy of The Cervical and Dorsal Spine", Ain Shams University, dept. of neurosurgery & dept. of surgery, August 2002. Medical Doctorate degree in Neurosurgery M.D. Thesis entitled "Minimally Invasive Techniques for sympathectomy”, September 2007. Current position, I am an Assistant Professor of Neurosurgery Department, Ain Shams University, Member of the American Society of Intervention Pain Techniques and Member of the American Society of Neurosurgeon and Spinal Surgeon.

Meetings attended:
  • Egyptian Society of Neurological Surgeons' meetings, 2001,2002, 2003,2005,2006& 2007,2008.
  • Pan African Neurosurgical Societies Meeting, Cairo, March 2002
  • Egyptian Society of Neurological surgeons meeting, 2005, presenting a paper entitled  "Minimally Invasive Techniques for sympathectomy”
  • Ain Shams University congress meeting, 2008, presenting a paper entitled  "Neurosurgical Management of Pain”
  • Egyptian Society of Pain management' meeting, 2008.
  • Pan Arab Neurosurgical Societies Meeting, Sana’a, 2008, presenting a paper entitled "Percutaneous Thermocoagulation Radiofrequency Upper Thoracic Sympathectomy”.
  • Egyptian Society of Pain management meeting (International pain course), Cairo, 2008
  • Egyptian Society of Neurological Surgeons' meeting, Cairo 2009, presenting Two papers entitled "Percutaneous Thermocoagulation Radiofrequency Upper Thoracic Sympathectomy” and "Percutaneous  Radiofrequency in Management of Chronic Spinal Pain”.
  • Egyptian Society of Pain management' meeting, 2010, presenting Two papers entitled "Intrathecal Pumps” and "Surgical Management of Pain”.
  • Attending WorkShops And Training Courses in Recent Advances of Intervention Pain Management Techniques at the American States, Netherlands, Turkey and Germany - Years (2011, 2012, 2013 and 2014).