2 Matching Annotations
  1. Jul 2018
    1. On 2014 Jan 13, Brett Snodgrass commented:

      Dear Reader,

      Please provide your kind consideration to the following excerpt from page 502

      "There were thrombi in the Thebesian vessels (including the Thebesian veins, the myocardial sinusoids, arterio-luminal and arteriosinusoidal vessels)"

      The authors astutely document the various connections in the heart that were described by 1. Thebesius (Thebesian veins) http://bit.ly/vasaThebesii

      and the structures described by Joseph T. Wearn

       1. myocardial sinusoids   and the
      

      vessels of Wearn:

       2. arterio-luminal (arterioluminal) 
      
      
      3. arteriosinusoidal vessels
      

      http://bit.ly/JTWearn

      Referring to the vessels of Wearn as Thebesian vessels is problematic as the former are strictly arterial in nature. The vessels described by Thebesius were venular in nature.

      Reportedly, Thebesius only studied the veins. In addition, Thebesius neither defined nor studied the "myocardial sinusoids," "arterio-luminal (arteioluminal)," or "arteriosinusoidal" vessels.

      Those were defined utilizing serial histologic sections by Wearn et al. The myocardial sinusoids have not been included as strict components of the "vessels of Wearn" as they have been noted to connect with many structures, and Wearn reported that they have a "meandering course."

      Therefore, the arterial-cameral connections that bypass the capillary bed are probably best referred to as vessels of Wearn.

      The venular-cameral connections that bypass the capillary bed are probably best referred to as any of the synonyms, 1. Thebesian veins (personally preferred term) 2. vessels of Thebesius 3. vasa Thebesii

      At least one article uses the terms "Thebesian vessels" and "Thebesian veins" synonymously, (please ask for reference), and I agree that they are synonyms.

      However, using the term "Thebesian vessels" to apply to all of the aformentioned connections is both inaccurate and has probably resulted in much confusion in the literature. Therefore, the use of the term "Thebesian vessels," as used in this article, is probably not accurate.

      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 13, Brett Snodgrass commented:

      Dear Reader,

      Please provide your kind consideration to the following excerpt from page 502

      "There were thrombi in the Thebesian vessels (including the Thebesian veins, the myocardial sinusoids, arterio-luminal and arteriosinusoidal vessels)"

      The authors astutely document the various connections in the heart that were described by 1. Thebesius (Thebesian veins) http://bit.ly/vasaThebesii

      and the structures described by Joseph T. Wearn

       1. myocardial sinusoids   and the
      

      vessels of Wearn:

       2. arterio-luminal (arterioluminal) 
      
      
      3. arteriosinusoidal vessels
      

      http://bit.ly/JTWearn

      Referring to the vessels of Wearn as Thebesian vessels is problematic as the former are strictly arterial in nature. The vessels described by Thebesius were venular in nature.

      Reportedly, Thebesius only studied the veins. In addition, Thebesius neither defined nor studied the "myocardial sinusoids," "arterio-luminal (arteioluminal)," or "arteriosinusoidal" vessels.

      Those were defined utilizing serial histologic sections by Wearn et al. The myocardial sinusoids have not been included as strict components of the "vessels of Wearn" as they have been noted to connect with many structures, and Wearn reported that they have a "meandering course."

      Therefore, the arterial-cameral connections that bypass the capillary bed are probably best referred to as vessels of Wearn.

      The venular-cameral connections that bypass the capillary bed are probably best referred to as any of the synonyms, 1. Thebesian veins (personally preferred term) 2. vessels of Thebesius 3. vasa Thebesii

      At least one article uses the terms "Thebesian vessels" and "Thebesian veins" synonymously, (please ask for reference), and I agree that they are synonyms.

      However, using the term "Thebesian vessels" to apply to all of the aformentioned connections is both inaccurate and has probably resulted in much confusion in the literature. Therefore, the use of the term "Thebesian vessels," as used in this article, is probably not accurate.

      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.