|Image by David Shankbone of Wikipedia|
It was also reported that this procedure was performed at Yorkville Endoscopy in New York City.
Just based on this limited information released to the public, I suspect the following...
1) The endoscopy procedure was probably an EGD which actually is an endoscopic procedure performed to check the esophagus and stomach, typically to evaluate for reflux damage. It is doubtful that the endoscopy was done specifically to evaluate the vocal cords mainly because sedation is not required to look at vocal cords alone.
Furthermore, Yorkville Endoscopy does not have listed laryngoscopy (endoscopy to check the vocal cords) as part of its services. Click here to see their list of services. Also if you look at the list of physicians at Yorkville Endoscopy, they are all gastrointestinal (GI) specialists... it's the wrong medical specialty if a vocal cord procedure was being performed. With vocal cord procedures, it's the ENT doctors and not the GI physicians who do them.
2) If respiratory arrest occurred during sedated endoscopy, it could be due to one of several factors:
- Aspiration (that's why patients are instructed to eat and drink nothing after midnight before the procedure)
- Severe laryngospasm
- Over-sedation from the anesthetic (propofol is the typical anesthetic agent to sedate which also happens to be the drug that led to Michael Jackson's death)
As more information is provided, the answers to questions that ultimately lead to Joan River's respiratory arrest will become apparent.
'Please pray': Joan Rivers, 81, rushed to hospital after she stopped breathing during surgery as her daughter asks for prayers. MailOnline 8/28/14
Joan Rivers Hospitalized Following Throat Surgery, Reportedly In Stable Condition. Huffington Post 8/28/14