Dr. Amy Mathers, a microbiology expert and IDSA guidance author, joins Dr. Julie Ann Justo, a clinical pharmacist specializing in infectious diseases, for an insightful discussion. They explore the challenges of treating Stenotrophomonas maltophilia, a tricky pathogen known for its resistance. The conversation delves into effective combination therapies and the significance of updated treatment guidelines. They also examine pharmacokinetics, particularly the efficacy of tetracyclines and fluoroquinolones, while emphasizing the importance of tailored approaches for vulnerable patient populations.

Drs. Henry “Chip” Chambers and Warren Rose join Dr. Megan Klatt to tackle rifampin dosing for gram-positive infections. In this episode, they break down rifampin synergy studies and discuss what is the optimal dosing of rifampin for challenging gram-positive bacterial cases, in particular Staphylococcus aureus infections with or without retained hardware/devices.   Listen to Breakpoints on iTunes, Overcast, Spotify, Listen Notes, Player FM, Pocket Casts, TuneIn, Blubrry, RadioPublic, or by using our RSS feed: https://sidp.pinecast.co/ References: Deconstructing the Dogma: Systematic Literature Review and Meta-analysis of Adjunctive Gentamicin and Rifampin in Staphylococcal Prosthetic Valve Endocarditis. Open Forum Infect Dis. 2022 Oct 31;9(11):ofac583. doi: 10.1093/ofid/ofac583. PMID: 36408468. Effectiveness of adjunctive rifampicin for treatment of Staphylococcus aureus bacteraemia: a systematic review and meta-analysis of randomized controlled trials. J Antimicrob Chemother. 2023 Oct 3;78(10):2419-2427. doi: 10.1093/jac/dkad214. PMID: 37583062. Adjunctive Rifampin Following Debridement and Implant Retention for Staphylococcal Prosthetic Joint Infection: Is it Effective if not Combined With a Fluoroquinolone? Open Forum Infect Dis. 2022 Oct 31;9(12):ofac582. doi: 10.1093/ofid/ofac582. PMID: 36504699.

Drs. Nico Cortes-Penfield (@Cortes-Penfield), Kerry LaPlante (@Kerry_LaPlante), Jessica Seidelman (@JessieLSeidel) join Dr. Julie Ann Justo (@julie_justo) to discuss the pesky slime that is biofilm in periprosthetic joint infections. They review biofilm composition & development, have an honest discussion about whether antibiotics can ever really eradicate it, and provide updates on the promising non-pharmacologic strategies on the horizon (bacteriophages, electromagnetism, & more). Learn more about the Society of Infectious Diseases Pharmacists: https://sidp.org/About X: @SIDPharm (https://twitter.com/SIDPharm) Instagram: @SIDPharm (https://www.instagram.com/sidpharm/) Facebook: https://www.facebook.com/sidprx LinkedIn: https://www.linkedin.com/company/sidp References Nixing the Nidus: Managing Retained Sources in Prosthetic Joint Infections. Breakpoints Podcast Episode #67. Society of Infectious Diseases Pharmacists. Dosing Consult: Rifampin Part 1. Breakpoints Podcast Episode #104. Society of Infectious Diseases Pharmacists. Review on Staphylococcal biofilm development: Schilcher K, Horswill AR. 2020 Aug 12;84(3):e00026-19. doi: 10.1128/MMBR.00026-19. PMID: 32792334. Antibiotics can fail to kill biofilm cells even if they penetrate the biofilm: Singh R, et al. Pathog Dis. 2016 Aug;74(6):ftw056. doi: 10.1093/femspd/ftw056. Epub 2016 Jul 7. PMID: 27402781. Subinhibitory antibiotic concentrations can promote biofilm formation: Schilcher K, et al. Antimicrob Agents Chemother. 2016 Sep 23;60(10):5957-67. doi: 10.1128/AAC.00463-16. PMID: 27458233. Clinical and genetic risk factors for biofilm-forming Staphylococcus aureus: Luther MK, et al. Antimicrob Agents Chemother. 2018 Apr 26;62(5):e02252-17. doi: 10.1128/AAC.02252-17. PMID: 29530854. Meta-analysis showing poor clinical outcomes with debridement, antibiotics, and implant retention (DAIR): Kunutsor SK, et al. J Infect. 2018 Dec;77(6):479-488. doi: 10.1016/j.jinf.2018.08.017. PMID: 30205122. Thieme L, et al. MBEC versus MBIC: the lack of differentiation between biofilm reducing and inhibitory effects as a current problem in biofilm methodology. Biol Proced Online 21, 18 (2019). https://doi.org/10.1186/s12575-019-0106-0. Ongoing trial investigating use of MBEC in the treatment of PJIs: Tillander JAN, et al. BMJ Open. 2022 Sep 15;12(9):e058168. doi: 10.1136/bmjopen-2021-058168. PMID: 36109038. Maale, G. Complete eradication of biofilm using low frequency electromagnetic force (EMF) and antibiotics at MIC. 34th Annual Meeting Musculoskeletal Infection Society. 2024 Aug. Abstract 1232 (see full program). Meta-analysis on bacteriophages for biofilm: Kovacs CJ, et al. Mil Med. 2024 May 18;189(5-6):e1294-e1302. doi: 10.1093/milmed/usad385. PMID: 37847552. Berking BB, et al. Biofilm disruption from within: light-activated molecular drill-functionalized polymersomes bridge the gap between membrane damage and quorum sensing-mediated cell death. ACS Biomater Sci Eng. 2024 Sep 9;10(9):5881-5891. doi: 10.1021/acsbiomaterials.4c01177. PMID: 39176452. Aboelnaga N, et al. Deciphering the dynamics of methicillin-resistant Staphylococcus aureus biofilm formation: from molecular signaling to nanotherapeutic advances. Cell Commun Signal. 2024 Mar 22;22(1):188. doi: 10.1186/s12964-024-01511-2. PMID: 38519959. Conway J, et al. Phase 1 study of the pharmacokinetics and clinical proof-of-concept activity of a biofilm-disrupting human monoclonal antibody in patients with chronic prosthetic joint infection of the knee or hip. Antimicrob Agents Chemother. 2024 Aug 7;68(8):e0065524. doi: 10.1128/aac.00655-24. PMID: 39012102. Mulpur P, et al. Efficacy of intrawound vancomycin in prevention of periprosthetic joint infection after primary total knee arthroplasty: a prospective double-blinded randomized control trial. J Arthroplasty. 2024 Jun;39(6):1569-1576. doi: 10.1016/j.arth.2024.01.003. PMID: 38749600. Dong Y, et al. Synergy of ultrasound microbubbles and vancomycin against Staphylococcus epidermidis biofilm. J Antimicrob Chemother. 2013 Apr;68(4):816-26. doi: 10.1093/jac/dks490. PMID: 23248238. Miltenberg B, et al. Intraosseous Regional Administration of Antibiotic Prophylaxis for Total Knee Arthroplasty: A Systematic Review. J Arthroplasty. 2023 Apr;38(4):769-774. doi: 10.1016/j.arth.2022.10.023. PMID: 36280158. Viswanathan VK, et al. Intraosseous regional antibiotic prophylaxis in total joint arthroplasty (TJA): Systematic review and meta-analysis. J Clin Orthop Trauma. 2024 Oct 3;57:102553. doi: 10.1016/j.jcot.2024.102553. PMID: 39435324. SOLARIO trial: Dudareva M, et al. The European Bone and Joint Infection Society Meeting, 2024 Sept. SOLARIO trial press release from BoneSupportTM. 2024 Oct 3. Fehring TK, et al. Does treatment at a specialized prosthetic joint infection center improve the rate of reimplantation. J Arthroplasty. 2023 Jun;38(6S):S314-7. PMID 37004968. ROADMAP trial website. 2024.

Dive into the latest breakthroughs in infectious disease research! Discover how AI is revolutionizing the detection of hospital-acquired infections and learn about groundbreaking HIV prevention strategies for young women. The conversation also covers innovative vaccination techniques, new antifungal therapies, and advancements in pediatric care. Plus, explore the exciting developments in EBV treatments post-transplant. It's a treasure trove of insights for anyone passionate about infectious diseases!

Did you miss IDWeek this year and trying to catch up on the hot topics? Or was there just too many good sessions and you want to catch up on the ones you missed? Let the Breakpoints Hostesses help you out! In the first of two IDWeek 2024 recap episodes, join Drs. Erin McCreary, Julie Ann Justo, Jeannette Bouchard, and Megan Klatt as they cover top late breaking abstracts and stewardship data that you won’t want to miss! References: BALANCE Trial: Antibiotic Treatment for 7 versus 14 Days in Patients with Bloodstream Infections. 10.1056/NEJMoa2404991 White et al. Antibiotic stewardship targets in the outpatient setting. 10.1016/j.ajic.2019.01.027 Wattengel et al. Outpatient antimicrobial stewardship: Optimizing patient care via pharmacist led microbiology review. 10.1016/j.ajic.2019.07.018 Augostini et al. An evaluation of antimicrobial prophylaxis for transrectal prostate biopsies: A potential stewardship target. 10.1016/j.ajic.2024.05.012 Cotter et al. Antibiotic use and outcomes among children hospitalized with suspected pneumonia. 10.1002/jhm.13002

Drs. Anne-Grete Märtson, Megan Wimmer, and Evan Clemens join Dr. Erin McCreary to tackle the one of the hottest debates among providers taking care of immunocompromised patients, valganciclovir dosing! Learn all about the history of valganciclovir dosing, what is valganciclovir’s PK/PD target, and even valganciclovir therapeutic drug monitoring. References: Märtson AG, Edwina AE, Kim HY, Knoester M, Touw DJ, Sturkenboom MGG, Alffenaar JC. Therapeutic Drug Monitoring of Ganciclovir: Where Are We? Ther Drug Monit. 2022 Feb 1;44(1):138-147. doi: 10.1097/FTD.0000000000000925. PMID: 34610621; PMCID: PMC8746890. Wiltshire H, Paya CV, Pescovitz MD, Humar A, Dominguez E, Washburn K, Blumberg E, Alexander B, Freeman R, Heaton N, Zuideveld KP; Valganciclovir Solid Organ Transplant Study Group. Pharmacodynamics of oral ganciclovir and valganciclovir in solid organ transplant recipients. Transplantation. 2005 Jun 15;79(11):1477-83. doi: 10.1097/01.tp.0000164512.99703.ad. PMID: 15940035. This podcast is powered by Pinecast.

Dr. Ed Septimus, a board-certified physician from Texas A&M and Harvard, and Whitney Buckel, an antimicrobial stewardship expert at Intermountain Health, discuss innovative EHR tools for improving antibiotic use. They share insights on optimizing antibiotic order systems and managing penicillin allergies within EHRs. The duo emphasizes the importance of real-time alerts and collaboration for enhancing patient safety. Additionally, they reveal exciting details about the INSPIRE trials, showcasing advancements in healthcare through technology.

Drs. Cesar Arias (@SuperBugDoc) and Katie Barber join Dr. Julie Ann Justo (@julie_justo) to discuss what is hot-off-the-presses for gram-positive bacterial infections and it’s a total party vibe! They review the latest news for recent and ongoing clinical trials (DOTS, DISRUPT, and SNAP trials), discuss hope for novel clinical tests of the cefazolin inoculum effect in staphylococci, and explore the fascinating changes in virulence and potential therapeutic options for the most challenging enterococci. Learn more about the Society of Infectious Diseases Pharmacists: https://sidp.org/About X: @SIDPharm (https://twitter.com/SIDPharm) Instagram: @SIDPharm (https://www.instagram.com/sidpharm/) Facebook: https://www.facebook.com/sidprx LinkedIn: https://www.linkedin.com/company/sidp References Climate Change and Antimicrobial Resistance. Editors in Conversation Podcast. American Society for Microbiology. Oct 2023. Is More Better? The Role of Combination Therapy for MRSA. Breakpoints Podcast Episode #30. Society of Infectious Diseases Pharmacists. Turner NA, et al. DOTS: Dalbavancin as an Option for Treatment of Staphylococcus aureus Bacteremia. ESCMID Global 2024. April 2024. NCT04775953. Real-world dalbavancin observational cohort: Rebold N, et al. Infect Dis Ther. 2024 Mar;13(3):565-579. doi: 10.1007/s40121-024-00933-2. PMID: 38427289. Exebacase DISRUPT trial : Fowler VG Jr, et al. Clin Infect Dis. 2024 Jun 14;78(6):1473-1481. doi: 10.1093/cid/ciae043. PMID: 38297916. @snap_trial tweet of Breaking News. Aug 2024. Investigator Resources for the SNAP trial. Sept 2024: https://www.snaptrial.com.au/for-investigators#interim Cefazolin inoculum effect on mortality in MSSA bacteremia : Miller WR, et al. Open Forum Infect Dis. 2018 May 23;5(6):ofy123. doi: 10.1093/ofid/ofy123. PMID: 29977970. Prevalence of cefazolin inoculum effect in MSSA and modified rapid nitrocefin test for detection: Carvajal LP, et al. Antimicrob Agents Chemother. 2024 Sep 30:e0089824. doi: 10.1128/aac.00898-24. PMID: 39345182. LiaX as surrogate for cell envelope stress in Enterococus faecium: Axell-House DB, et al. Antimicrob Agents Chemother. 2024 Mar 6;68(3):e0106923. doi: 10.1128/aac.01069-23. PMID: 38289081. Shorter is better for uncomplicated streptococcal bacteremia: Clutter DS, et al. Antimicrob Agents Chemother. 2024 Aug 7;68(8):e0022024. doi: 10.1128/aac.00220-24. PMID: 38975753. Short vs. long antibiotic duration in Streptococcus pneumoniae bacteremia: Crotty M, et al. Open Forum Infect Dis. 2024 Aug 30;11(9):ofae478. doi: 10.1093/ofid/ofae478. PMID: 39257675. This podcast is powered by Pinecast.

In this episode of Breakpoints’ Dosing Consult series, Drs. Chuck Peloquin and Gerry Davies join Dr. Megan Klatt to discuss rifampin dosing for mycobacterial infections. Hear from the experts on if higher doses are really better, toxicity thresholds, and the role of alternative rifamycins for patients with MTB and NTMs. Learn more about the Society of Infectious Diseases Pharmacists: https://sidp.org/About X: @SIDPharm (https://twitter.com/SIDPharm) Instagram: @SIDPharm (https://www.instagram.com/sidpharm/) Facebook: https://www.facebook.com/sidprx LinkedIn: https://www.linkedin.com/company/sidp References: Efficacy and Safety of High-Dose Rifampin in Pulmonary Tuberculosis. A Randomized Controlled Trial. Am J Respir Crit Care Med. 2018 Sep 1;198(5):657-666. doi: 10.1164/rccm.201712-2524OC. Rifampin vs. rifapentine: what is the preferred rifamycin for tuberculosis? Expert Rev Clin Pharmacol. 2017 Oct;10(10):1027-1036. doi: 10.1080/17512433.2017.1366311. Rifabutin for treating pulmonary tuberculosis. Cochrane Database Syst Rev. 2007 Oct; 2007(4): CD005159. doi: 10.1002/14651858.CD005159.pub2. Implementation of Bedaquiline, Pretomanid, and Linezolid in the United States: Experience Using a Novel All-Oral Treatment Regimen for Treatment of Rifampin-Resistant or Rifampin-Intolerant Tuberculosis Disease. Clin Infect Dis. 2023 Oct 5;77(7):1053-1062. doi: 10.1093/cid/ciad312. This podcast is powered by Pinecast.

Drs. Jim Rhodes and Molly Steed join host Jeannette Bouchard to discuss all things related to optimal dosing of daptomycin. This podcast episode provides insight on why dosing matters with this antibiotic, especially with certain organisms (looking at you, E. faecium), why weight matters with dosing, and what that pesky CPK means. Listen to Breakpoints on iTunes, Overcast, Spotify, Listen Notes, Player FM, Pocket Casts, TuneIn, Blubrry, RadioPublic, or by using our RSS feed: https://sidp.pinecast.co/  References: Fixed-dose daptomycin in Staphylococcus aureus: doi 10.1002/phar.4602 High dose daptomycin for VRE: doi 10.1093/cid/ciw815 This podcast is powered by Pinecast.