Get your Health question answered in 3 easy steps
A Doctor will be with you shortly
Ask a Doctor Now
143 Doctors are Online

What are the symptoms of phrenic nerve dysfunction?

User rating for this question
Very Good
Answered by

General & Family Physician
Practicing since : 2008
Answered : 3331 Questions
I have been suffering from dyspnea and orthopnea for over a year. My pulmunologist is convinced that it is not a lung disease issue. I recently had a sniff test and there was no abnormal movement of the diaphragm. There is evidence of a discoid atelectatic changes at the left base with initial elevation of the left hemidiaphragm. Some blunting of the right CP angle was also noted. NO infitrates in the lunch and the heart is normal in size. When this problem started a year ago, my thyroid (TSH) was out of wack at 90.63 mIU/L (collected January 17, 2013). During that same period, I had a crippleing problem with back spams (neck/upper back area) and was diagnosed and treated for walking pnemonia (M. Pneumoniae AB (IGG), EIA. By July, my TSH was back to normal (0.50 mIU/L). My question to you is the following: Could this be a phrenic nerve dysfunction? I forgot to mention that I've had a heart cathederization to measure arterial pressure inside the lung and everything was fine and nothing wrong with the heart either.
Posted Thu, 20 Feb 2014 in Hypertension and Heart Disease
Answered by Dr. Raju A.T 3 hours later
Brief Answer: Yes, it could be Detailed Answer: Hi, Thanks for your query. Yes, considering the spirometry result phrenic nerve dysfunction can be a possibility. Phrenic nerve dysfunction usually starts with a hiccough. This progresses to restrictive pattern of breathing where in the TLC and the alveolar capillary surface remains normal. With elevation of hemidiaphragm, more than orthopnia one can experience trepopnea (dyspnea when lying on the affected side). Such presentation is typical in unilateral phrenic nerve dysfunction which is a common complication of pneumonia affecting the lower lobes. Also, I would recommend a HRCT (High Resolution CT scan) to rule out fibrosis which can present as atelectatic change post pneumonia. Fibrosis also presents a restrictive pattern on spirometry but with reduced TLC and alveolar capillary surface. Wish you god health. regards,
Above answer was peer-reviewed by
Share on Facebook
Share on Twitter
Share on Google+
Question is related to
Diseases and Conditions
,   ,   ,   ,   ,  
Medical Topics

The user accepted the expert's answer

Ask a Cardiologist

© Ebix, Inc. All Rights Reserved.
All the information, content and live chat provided on the site is intended to be for informational purposes only, and not a substitute for professional or medical advice. You should always speak with your doctor before you follow anything that you read on this website. Any health question asked on this site will be visible to the people who browse this site. Hence, the user assumes the responsibility not to divulge any personally identifiable information in the question. Use of this site is subject to our Terms & Conditions
Already Rated.
Your rating:

Ask a Doctor