Limitations
Our results have limitations to be considered. Although the survey was
sent using the LAHRS database, it is possible that several practitioners
from high volume centers failed to answer the survey. Additionally,
since the survey was sent in English, this could have also limited the
number of possible physicians willing to answer the survey. This could
have reduced the number of answers received. Finally, most answers were
received from Colombia and Brazil (66.7% of total answers), and as such
other countries may be under-represented even though this type of
procedures are known to be performed.