Mycobacterium Lentiflavum

Posted by John, Volunteer Mentor @johnbishop, Jun 29, 2023

Has anyone been diagnosed with a Mycobacterium Lentiflavum infection? There was a recent article published that on the topic and might be helpful for those trying to find information.

"Mycobacterium lentiflavum is a slow-growing nontuberculous mycobacterium that is widely distributed in soil and water systems, but it is sometimes pathogenic to humans. Although cases of M. lentiflavum infections are rare, 22 isolates of M. lentiflavum were identified at a single hospital in Japan. We suspected a nosocomial outbreak; thus, we conducted transmission pattern and genotype analyses."
--- Pseudo-outbreak of Mycobacterium lentiflavum at a general hospital in Japan - Published online by Cambridge University Press: 25 April 2023: https://www.cambridge.org/core/journals/infection-control-and-hospital-epidemiology/article/pseudooutbreak-of-mycobacterium-lentiflavum-at-a-general-hospital-in-japan/AC38264C642B79E52D661F4BB3FDB3AB

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Hello @squire123, I noticed that you posted in another discussion that you had been diagnosed with Mycobacterium Lentiflavum. I thought I would start a new discussion for you since Mycobacterium Lentiflavum is distinct from MAC and affects different groups of people.

Do you mind sharing how you were diagnosed and what treatments have been used?

REPLY

@squire123 Hello, I am guessing you never got any responses to your post 3 months ago about M. lentiflavum, but that doesn't surprise me. It is one of the family NTM (non-tubercular mycobacterium) and fairly closely related to the group known as MAC (M avium complex.)

NTM is considered a rare infection, affecting perhaps 100,000 people in the entire US. M. lentiflavum makes up less than 1% of the known cases. So the odds of any other Mayo Connect members also have it are very low.

However, being closely related to MAC, treatment is nearly the same, with 3 antibiotics. The main difference is that the primary one used is clarythromycin instead of azithromycin.

Have you been prescribed antibiotics for your infection?
Sue

REPLY
@sueinmn

@squire123 Hello, I am guessing you never got any responses to your post 3 months ago about M. lentiflavum, but that doesn't surprise me. It is one of the family NTM (non-tubercular mycobacterium) and fairly closely related to the group known as MAC (M avium complex.)

NTM is considered a rare infection, affecting perhaps 100,000 people in the entire US. M. lentiflavum makes up less than 1% of the known cases. So the odds of any other Mayo Connect members also have it are very low.

However, being closely related to MAC, treatment is nearly the same, with 3 antibiotics. The main difference is that the primary one used is clarythromycin instead of azithromycin.

Have you been prescribed antibiotics for your infection?
Sue

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Hi Sue, Is M. lentiflavum Harder to treat than MAC? My doctors are deciding whether to start treatment or wait until my appointment with NJH in August. I use inhalation tobramycin for pseudomonas, but also have bronchiectasis, bronchiolitis & a few other lung issues. I was treated for MAC about 2 years ago & kicked it with “the big three”. I am more worried now because my lungs are in worse shape & having a new MAC adjacent infection.

REPLY
@dltorres

Hi Sue, Is M. lentiflavum Harder to treat than MAC? My doctors are deciding whether to start treatment or wait until my appointment with NJH in August. I use inhalation tobramycin for pseudomonas, but also have bronchiectasis, bronchiolitis & a few other lung issues. I was treated for MAC about 2 years ago & kicked it with “the big three”. I am more worried now because my lungs are in worse shape & having a new MAC adjacent infection.

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Hi D - I don't know about "harder to treat" - it is just that a few different meds may be used. If there is any place to get the "exact" treatment for M lentiflavum, it is a clinic like NJH. Just remember, mycobacteria, with few exceptions, grow VERY slowly, so the risk of waiting a month or six weeks to start treating is low.

What would I do in your place? Use the Tobramycin - it at least will keep other stuff from growing. Do my airway clearance every day, using 7% saline (if tolerated.) 7% saline has been shown to suppress the growth of mycobacterium, and even reduce it in some cases. Wait to start any new antibiotics until after evaluation.

Are you comfortable waiting?
Sue

REPLY
@sueinmn

Hi D - I don't know about "harder to treat" - it is just that a few different meds may be used. If there is any place to get the "exact" treatment for M lentiflavum, it is a clinic like NJH. Just remember, mycobacteria, with few exceptions, grow VERY slowly, so the risk of waiting a month or six weeks to start treating is low.

What would I do in your place? Use the Tobramycin - it at least will keep other stuff from growing. Do my airway clearance every day, using 7% saline (if tolerated.) 7% saline has been shown to suppress the growth of mycobacterium, and even reduce it in some cases. Wait to start any new antibiotics until after evaluation.

Are you comfortable waiting?
Sue

Jump to this post

Yes, I am more comfortable waiting for the experts. My pulmonologist was telling me about a new medication for M. lentiflavum that is nebulized instead of pills. I do like the idea of meds going directly into lungs. And you use it along with tobramycin. I love the 7% saline. I use it daily after albuterol. It works better for me than Mucomyst. Thank you again Sue! Oh, And thank you for the tip on saline & mycobacterium. Good to know!
Debra

REPLY
@sueinmn

@squire123 Hello, I am guessing you never got any responses to your post 3 months ago about M. lentiflavum, but that doesn't surprise me. It is one of the family NTM (non-tubercular mycobacterium) and fairly closely related to the group known as MAC (M avium complex.)

NTM is considered a rare infection, affecting perhaps 100,000 people in the entire US. M. lentiflavum makes up less than 1% of the known cases. So the odds of any other Mayo Connect members also have it are very low.

However, being closely related to MAC, treatment is nearly the same, with 3 antibiotics. The main difference is that the primary one used is clarythromycin instead of azithromycin.

Have you been prescribed antibiotics for your infection?
Sue

Jump to this post

Now cases reported in Collier Co, Florida, I lived in Naples from 1974 to 2012.

REPLY
@sueinmn

@squire123 Hello, I am guessing you never got any responses to your post 3 months ago about M. lentiflavum, but that doesn't surprise me. It is one of the family NTM (non-tubercular mycobacterium) and fairly closely related to the group known as MAC (M avium complex.)

NTM is considered a rare infection, affecting perhaps 100,000 people in the entire US. M. lentiflavum makes up less than 1% of the known cases. So the odds of any other Mayo Connect members also have it are very low.

However, being closely related to MAC, treatment is nearly the same, with 3 antibiotics. The main difference is that the primary one used is clarythromycin instead of azithromycin.

Have you been prescribed antibiotics for your infection?
Sue

Jump to this post

No tx right now from ID Dr. Watchful waiting, no nodules or exacerbations. Off to New pulmonary doc this week.

REPLY
@dltorres

Yes, I am more comfortable waiting for the experts. My pulmonologist was telling me about a new medication for M. lentiflavum that is nebulized instead of pills. I do like the idea of meds going directly into lungs. And you use it along with tobramycin. I love the 7% saline. I use it daily after albuterol. It works better for me than Mucomyst. Thank you again Sue! Oh, And thank you for the tip on saline & mycobacterium. Good to know!
Debra

Jump to this post

What is the name of new drug? I'm newly diagnosed. I'm near jax and Mayo, but couldn't get apt. Where are you? B

REPLY

Hi @squire123, I live in Glendale, Az. And I don’t know the name of new drug for M. lentiflavum. But I will post when I do. My doctors are sending me to NJH because they are the very best for lung issues in the US. I ask if I could go to Mayo(it’s 30 minutes from me), but docs said NJH is the only option for my situation. I have several lung issues complicating treatment. Along with a compromised immune system. I have 3 doctors working on my case so I do feel comfortable with their recommendations. This is all a little overwhelming at times, but I’ll do what I need to do to get better. I’d love to hear what treatment you end up with!
Take care,
Debra

REPLY
@dltorres

Hi @squire123, I live in Glendale, Az. And I don’t know the name of new drug for M. lentiflavum. But I will post when I do. My doctors are sending me to NJH because they are the very best for lung issues in the US. I ask if I could go to Mayo(it’s 30 minutes from me), but docs said NJH is the only option for my situation. I have several lung issues complicating treatment. Along with a compromised immune system. I have 3 doctors working on my case so I do feel comfortable with their recommendations. This is all a little overwhelming at times, but I’ll do what I need to do to get better. I’d love to hear what treatment you end up with!
Take care,
Debra

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Debra, wow, I was also over whelmed and am now taking Prozac. Helpful for anxiety. Interested in your journey, especially NJH. I'm also considering going, as I am in initial stages of the disease. Keeping well is my goal. So many good suggestions, I woul like to keep in touch with you. Barbara

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