In the previous two posts (Part One and Part Two), I have examined comments made by Gassman, et al. in which they erroneously stated that bone marrow aspiration is painful and that it is associated with increased aspiration site morbidity. Their comments were directed at an article by Xing, et al. published together in the...Read More
In the past couple of posts (Part One and Part Two of this series), I have reviewed a study by Xing, et al. in which the authors combined minced fat tissue with BMA, BMC or PBS (phosphate buffered saline) to assess the impact of each material for promoting viability of fat grafts in a rabbit...Read More
In the last post, I had finished covering the experimental design and describing the fluids Xing, et al. used in a study of the influence of bone marrow-derived fluid to augment fat graft survival in the rabbit. I will continue in this post with a review of the results they reported. Refer to Part One...Read More
Recently, my boss, Dr. David Karli, asked me about publications or data on the use of various combinations of stem cell-derived therapies. He had been looking at websites that more often now than before are advertising cell-based combo-therapies. For example, he asked me about treating patients with a mixture of some form of embryonic stem...Read More
In the last two posts (When Fat Hits the Regulatory Fan: Mechanical Disruption of Adipose Tissue with the Lipogems System Part One andWhen Fat Hits the Regulatory Fan: Mechanical Disruption of Adipose Tissue with the Lipogems System Part Two), I reviewed a situation involving a 510(k)-cleared device/kit for mechanically disrupting a patient’s adipose tissue (i.e.,...Read More
In the previous post When Fat Hits the Regulatory Fan: Mechanical Disruption of Adipose Tissue with the Lipogems System Part One, I introduced what I think is a curious situation that has resulted from instructions the FDA provided to physicians on how to review the standards outlined in 1271.15(b) to see if they can invoke the...Read More
During my previous review(see posts): When the Fat Hits the Regulatory Fan: Processing Adipose Tissue in the “Such HCT/P” Era Part One When the Fat Hits the Regulatory Fan: Processing Adipose Tissue in the “Such HCT/P” Era Part Two of important and relevant points the FDA made in the two Guidances that were issued on...Read More
In the previous post: When the Fat Hits the Regulatory Fan: Processing Adipose Tissue in the “Such HCT/P” Era Part One, I started reviewing relevant statements that I think might apply to adipose tissue in the two final Guidances the FDA issued on November 16, 2017 (see my views and the link below): Winners and...Read More
Prior to the FDA issuing the final versions of two Guidances (see my views and links below) Winners and Losers Emerge at Long Last After the FDA Issues Two Guidances Same Surgical Procedure Exception Guidance: What Does “Such HCT/P” Really Mean? Part One Same Surgical Procedure Exception Guidance: What Does “Such HCT/P” Really Mean? Part Two...Read More
In the previous post: Same Surgical Procedure Exception Guidance: What Does “Such HCT/P” Really Mean? Part One, I started exploring what I think the FDA is trying to tell us stakeholders in its recently issued Guidance entitled, “Same Surgical Procedure Exception under 21 CFR 1271.15(b): Questions and Answers Regarding the Scope of the Exception”. I...Read More
