Melissa Rivers and Joan Rivers Melissa Rivers and Joan Rivers

Melissa Rivers has filed a malpractice lawsuit against the doctors who treated her mother Joan for a standard medical procedure, The Associated Press reports. Joan Rivers stopped breathing and died from complications stemming from the procedure.

Melissa Rivers issued a statement on her decision. "What ultimately guided me was my unwavering belief that no family should ever have to go through what my mother, [my son] Cooper and I have been through. The level of medical mismanagement, incompetency, disrespect and outrageous behavior is shocking and frankly, almost incomprehensible."

VIDEO: Watch Melissa Rivers' touching speech about her "brave" mother Joan

Joan Rivers was being treated at Yorkville Endoscopy for voice changing and acid reflux problems in late August of 2014. While undergoing a routine procedure, Rivers went into cardiac arrest and died from a lack of oxygen to her brain. She wastaken off of life support on Sept. 4.

Among the errors found to be committed by the staff at Yorkville Endoscopy after a federal investigation was ordered were failure to keep proper medical records, failure to get consent for every procedure to be performed, and allowing an unauthorized doctor to take several cell phone photos while Rivers was under. The lawsuit also says an additional procedure, a laryngoscopy, was performed without Rivers' consent.