Sympathetic Block Specialists

Pain Care Providers is a state of the art medical facility that serves residents who live in or near the Irvine, California area. Dr. Amir Rafizad and Dr. Reza Mahrou specialize in the use of sympathetic blocks and other procedures that are specifically designed to alleviate chronic and acute pain.

Sympathetic Block Q & A

What is a Lumbar Sympathetic Block?

A sympathetic nerve block involves the injection of an anesthetic into or around the sympathetic nerves in a specific location in the body. A lumbar sympathetic nerve block is injected into the lower portion of the back, near the sympathetic nerves on either side of the spinal column. In most cases, sympathetic nerves are involved in regulating bodily functions such as blood flow. When a lumbar sympathetic block is considered, it is normally used to help control nerve impulses from the extremities, in this case, the legs.

How Do Ganglion Impar Blocks and Stellate Ganglion Blocks Occur?

A ganglion is a small cyst, or fluid-filled sac, that often appears after an injury. Stellate ganglions affect the sixth and seventh cervical vertebrae in the neck, while ganglion impar is a collection of nerves located towards the front of the sacrum in the the pelvic area. Both can cause pain in their respective areas and are capable of being treated with nerve blocks. Stellate ganglion block is used to control certain painful conditions of arms or face, while Ganglion Impar block can be used for the treatment of rectal or pelvic pain.

What Does a Superior Hypergastric Block do?

A Superior Hypergastric Block is used to help alleviate the pain and discomfort caused by certain chronic nonmalignant conditions and cancers. The block is injected into the area between the lower vertebrae of the lumbar region and the upper portion of the sacral vertebrae. This type of nerve block helps to control pelvic cavity pain that is directly linked to cancer and other chronic conditions that are known to produce pain in varying degrees. This is an ideal treatment option for individuals who are in the advanced stages of lower abdominal cancer and other chronic forms of illness.


We are contracted with various PPO plans as well as Medicare and MediCal. Please call our office if you do not see your insurance listed here.

Aetna HMO
Anthem Blue Cross
Anthem Blue Cross Blue Shield HMO
United Healthcare

Words from our patients

  • Healthgrades

    "Dr. Rafizad is a very smart, caring doctor who has extraordinary knowledge about choosing the right medicines."

    Michael T.
  • facebook

    "Dr. Mahrou, Dr. Rafizad, nurses & administrative staff are a complete team for pain management, very professional & caring for their patients. Thank you PCP!!!"

    Oliver L.
  • Yelp

    "I would highly recommend [Dr. Mahrou] to anyone suffering from acute or chronic pain. He truly is THE BEST physician I have ever had."

    Diann H.
  • Yelp

    "I LOVE these two doctors; they are one of a kind. When you're in the office with the doctors they always make you feel as if you're the only person that matters."

    Melanie J.
  • Yelp

    "Dr. Rafizad has saved my life making the pain tolerable and in some cases go away all together."

    Marylou B.
  • RateMDs

    "Dr. Rafizad is super intelligent & he actually listens when one speaks. I would recommend Dr. Rafizad highly to anyone with a pain issue. This is a first rate doctor."

    Verified Patient
  • Vitals

    "Dr. Reza Mahrou was a very PLEASANT and professional individual. We talked and he actually "listened" to what I had to say. I would definitely recommend this doctor."

    Verified Patient
  • facebook

    "Dr Mahrou is the kindest most compassionate Dr. He has definitely improved my quality of life. He and Dr. Rafizad are my Dynamic Duo!"

    Shannon B.
  • Yelp

    "I recently had a procedure performed on my back. I'm very pleased with this group and will continue to go there. I would definitely recommend them."

    Stefani W.
  • Yelp

    "Dr. Mahrou is the most kind, genuine, compassionate Pain Management doctor I have ever seen. Thank god for Doctors that love their job and genuinely try to help people."

    Amy B.
Our Locations

Choose your preferred location