2 Matching Annotations
  1. Jul 2018
    1. On 2014 Jan 11, Brett Snodgrass commented:

      Dear Reader,

      Please provide your kind consideration to the distinction between the Thebesian veins and the vessels of Wearn.

      It is possible in this report, that both connections permit drainage into the left ventricle.

      The article states "Egress of blood from this vessel was observed to take place by way of the Thebesian system, through the ventricular septum and thence into the left ventricle."

      The authors presume that it was taking place through the Thebesian veins and not the vessels of Wearn. Since the vessels of Wearn previously had no name, they may have been referred to as Thebesian vessels. This is problematic because if someone reads prior reports about what Thebesius studied, they will likely identify the terms "Thebesian veins" and note that Thebesius reported venular-cameral connections.

      In this particular case, the venular hypoplasia probably resulted in increased backpressure and egress of blood from both the Thebesian veins and vessels of Wearn into the left ventricle.

      Please see

      1. http://bit.ly/JTWearn

      2. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1933738/

      3. http://bit.ly/vasaThebesii

      4. http://bit.ly/ThebesianByPratt

      My opinion is that accurate anatomic terminology is a basic principle underlying good medical science, and I ask others to consider whether the aforementioned definitions are appropriate. If this comment is not helpful, please let me know how it might be improved.

      Comments and suggestions are welcome.

      Thank you very much.


      This comment, imported by Hypothesis from PubMed Commons, is licensed under CC BY.

  2. Feb 2018
    1. On 2014 Jan 11, Brett Snodgrass commented:

      Dear Reader,

      Please provide your kind consideration to the distinction between the Thebesian veins and the vessels of Wearn.

      It is possible in this report, that both connections permit drainage into the left ventricle.

      The article states "Egress of blood from this vessel was observed to take place by way of the Thebesian system, through the ventricular septum and thence into the left ventricle."

      The authors presume that it was taking place through the Thebesian veins and not the vessels of Wearn. Since the vessels of Wearn previously had no name, they may have been referred to as Thebesian vessels. This is problematic because if someone reads prior reports about what Thebesius studied, they will likely identify the terms "Thebesian veins" and note that Thebesius reported venular-cameral connections.

      In this particular case, the venular hypoplasia probably resulted in increased backpressure and egress of blood from both the Thebesian veins and vessels of Wearn into the left ventricle.

      Please see

      1. http://bit.ly/JTWearn

      2. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1933738/

      3. http://bit.ly/vasaThebesii

      4. http://bit.ly/ThebesianByPratt

      My opinion is that accurate anatomic terminology is a basic principle underlying good medical science, and I ask others to consider whether the aforementioned definitions are appropriate. If this comment is not helpful, please let me know how it might be improved.

      Comments and suggestions are welcome.

      Thank you very much.


      This comment, imported by Hypothesis from PubMed Commons, is licensed under CC BY.