Faculty Bibliography

Successful treatment of Acinetobacter baumannii infections require early and appropriate antimicrobial therapy. One of the first steps in this process is understanding which β-lactamase (bla) alleles are present and in what combinations. Thus, we performed WGS on 98 carbapenem-resistant A. baumannii (CR Ab). In most isolates, an acquired bla_OXA carbapenemase was found in addition to the intrinsic bla_OXA allele. The most commonly found allele was bla_OXA-23 (n = 78/98). In some isolates, bla_OXA-23 was found in addition to other carbapenemase alleles: bla_OXA-82 (n = 12/78), bla_OXA-72 (n = 2/78) and bla_OXA-24/40 (n = 1/78). Surprisingly, 20% of isolates carried carbapenemases not routinely assayed for by rapid molecular diagnostic platforms, i.e., bla_OXA-82 and bla_OXA-172; all had ISAba1 elements. In 8 CR Ab, bla_OXA-82 or bla_OXA-172 was the only carbapenemase. Both bla_OXA-24/40 and its variant bla_OXA-72 were each found in 6/98 isolates. The most prevalent ADC variants were bla_ADC-30 (21%), bla_ADC-162 (21%), and bla_ADC-212 (26%). Complete combinations are reported.

The presentation of fevers in a patient with active intravenous (IV) drug use is often challenging, as there is a wide range of both infectious and noninfectious disorders that can cause fevers. A thorough diagnostic workup is essential in identifying the etiology of these fevers. We report a rare case of an infected right ventricular (RV) thrombus as a cause of persistent fever and sepsis in a 46-year-old patient with IV drug use. The patient continued to have persistent bacteremia inspite of appropriate IV antibiotics. Hence, the patient warranted a cardiothoracic surgical excision of the infected RV thrombus following which the patient showed remarkable improvement.

Background: This study evaluated the prevalence of adjunctive pharmacotherapies use among ileal pouch-anal anastomosis (IPAA) patients. Methods: The IBD Partners database was queried to compare IPAA patients with and without pouch-related symptoms (PRS). Within the cohort of patients with PRS, patient reported outcomes were compared among opioid, nonsteroidal anti-inflammatory drug (NSAID), and probiotic users. Results: There were no differences in patient reported outcomes based on NSAID or probiotic usage. Opioid users reported increased bowel frequency, urgency, poor general well-being, abdominal pain, and depression (P < 0.05 for all variables). Conclusions: In IPAA patients with PRS, opioid use, but not NSAIDs or probiotics, was associated with a higher burden of PRS.

BACKGROUND:Chinese-Americans are a fast-growing immigrant group with worse rheumatic disease outcomes compared to Caucasians and frequent use of Traditional Chinese Medicine (TCM). Whether TCM use is associated with lower adherence to western rheumatic medications is unknown. METHODS:Chinese-Americans actively treated for a systemic rheumatic disease were recruited from two Chinatown clinics. Socio-demographic, TCM use, and clinical data were gathered. Self-reported health status was assessed using Patient-Reported Outcome Measurement Information System (PROMIS®) short forms. Adherence was stratified using the 8-item Morisky Medication Adherence Scale. Factors independently associated with high adherence were identified using multivariable logistic regression. RESULTS:Among 230 subjects, median age was 55 (range 20-97), 65% were female, 71% had ≤ high school education, 70% were on Medicaid, and 22% reported English fluency. The most common rheumatic diagnoses were rheumatoid arthritis (41%), systemic lupus erythematosus (17%), and seronegative spondyloarthropathies (15%). Half reported TCM use in the past year, and 28% reported high adherence to western rheumatic medications. In multivariable analysis, high adherence was associated with TCM use (OR 3.96, p<0.001), being married (OR 3.69, p=0.004), medication regimen complexity (OR 1.13, p=0.004), older age (OR 1.06, p<0.001), and was negatively associated with anxiety (OR 0.94, p=0.001). CONCLUSIONS:While adherence to western rheumatic medications was low in this cohort, interestingly, it was higher among TCM users compared to non-users. TCM use appears to represent a complementary rather than an alternate approach to disease management for these patients. Future studies should evaluate whether TCM use is associated with better disease outcomes. This article is protected by copyright. All rights reserved.

BACKGROUND:Coronary artery calcium (CAC) is a guideline recommended cardiovascular disease (CVD) risk stratification tool that increases with age and is associated with non-cardiovascular disease outcomes including cancer. We sought to define the age-specific change in the association between CAC and cause-specific mortality. METHODS:The Coronary Artery Calcium Consortium includes 59,502 asymptomatic patients age 40-75 without known CVD. Age-stratified mortality rates and parametric survival regression modeling was performed to estimate the age-specific CAC score at which CVD and cancer mortality risk were equal. RESULTS:The mean age was 54±8 years (67% men) and there were 2,423 deaths over a mean 12±3 years follow-up. Among individuals with CAC = 0, cancer was the leading cause of death, with low CVD mortality rates for both younger (40-54 years) 0.2/1,000 person-years and older participants (65-75 years) 1.3/1,000 person-years. When CAC ≥400, CVD was consistently the leading cause of death among younger (71% of deaths) and older participants (56% of deaths). The CAC score at which CVD overtook cancer as the leading cause of death increased exponentially with age and was approximately 115 at age 50 and 380 at age 65. CONCLUSIONS:Regardless of age, when CAC = 0 cancer was the leading cause of death and the cardiovascular disease mortality rate was low. Our age-specific estimate for the CAC score at which CVD overtakes cancer mortality allows for a more precise approach to synergistic prediction and prevention strategies for CVD and cancer.