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Dutra KJ, Lazenby GB, Goje O, Soper DE. Cefazolin as the mainstay for antibiotic prophylaxis in patients with a penicillin allergy in obstetrics and gynecology. Am J Obstet Gynecol 2024; 231:430-436. [PMID: 38527607 DOI: 10.1016/j.ajog.2024.03.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 02/20/2024] [Accepted: 03/13/2024] [Indexed: 03/27/2024]
Abstract
Cefazolin is the most common antibiotic used for prophylaxis in obstetrics and gynecology. Among those with a penicillin allergy, alternative antibiotics are often chosen for prophylaxis, given fears of cross-reactivity between penicillin and cefazolin. Alternative antibiotics in this setting are associated with adverse sequelae, including surgical site infection, induction of bacterial resistance, higher costs to the healthcare system, and possible Clostridium difficile infection. Given the difference in R1 side chains between penicillin and cefazolin, cefazolin use is safe and should be recommended for patients with a penicillin allergy, including those who experience Immunoglobulin E-mediated reactions such as anaphylaxis. Cefazolin should only be avoided in those who experience a history of a severe, life-threatening delayed hypersensitivity reaction manifested as severe cutaneous adverse reactions (Steven-Johnson Syndrome), hepatitis, nephritis, serum sickness, and hemolytic anemia in response to penicillin administration. In addition, >90% of those with a documented penicillin allergy do not have true allergies on skin testing. Increased referral for penicillin allergy testing should be incorporated into routine obstetric care and preoperative assessment to reduce suboptimal antibiotic prophylaxis use. More education is needed among providers surrounding penicillin allergy assessment and cross-reactivity among penicillins and cephalosporins to optimize antibiotic prophylaxis in obstetrics and gynecology.
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Affiliation(s)
- Karley J Dutra
- Department of Obstetrics and Gynecology, Medical University of South Carolina, Charleston, SC.
| | - Gweneth B Lazenby
- Department of Obstetrics and Gynecology, Medical University of South Carolina, Charleston, SC
| | - Oluwatosin Goje
- Department of Subspecialties, Obstetrics and Gynecology Institute, Cleveland Clinic Foundation, Cleveland, OH
| | - David E Soper
- Department of Obstetrics and Gynecology, Medical University of South Carolina, Charleston, SC
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Afsari M, White A, Adhikari EH. Group B Streptococcus and Intraamniotic Inflammation and Infection. Clin Obstet Gynecol 2024; 67:576-588. [PMID: 39061126 DOI: 10.1097/grf.0000000000000884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/28/2024]
Abstract
Intraamniotic inflammation and infection complicate 2% to 5% of term deliveries. Group B Streptococcus (GBS) is a common cause of intraamniotic infection associated with invasive neonatal disease and maternal morbidity. Universal vaginal-rectal screening for GBS colonization is recommended between 36 and 37 weeks. Intrapartum antibiotic prophylaxis is recommended for individuals with positive GBS screens and other risk factors. Intravenous penicillin is the preferred antimicrobial agent. Individuals with penicillin allergies may receive cefazolin for low-risk allergies and either clindamycin or vancomycin for high-risk allergies, depending on their antimicrobial susceptibilities. Clinical trials are underway to evaluate the safety and immunogenicity of maternal anti-GBS vaccine candidates.
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Affiliation(s)
- Macy Afsari
- Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center
| | - Alesha White
- Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center
- Department of Obstetrics and Gynecology, Parkland Health, Dallas, Texas
| | - Emily H Adhikari
- Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center
- Department of Obstetrics and Gynecology, Parkland Health, Dallas, Texas
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Burn MS, Xu X, Kwah J, Liao J, Son M. The Cost of Developing and Implementing an Antepartum Referral Program for Penicillin Allergy Evaluation at a Single Academic Tertiary Care Hospital. Am J Perinatol 2024; 41:1290-1297. [PMID: 38423122 DOI: 10.1055/a-2278-9279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
OBJECTIVE Approximately 10% of pregnant individuals report a penicillin allergy, yet most are not truly allergic. Allergy verification during pregnancy is safe and recommended; however, many hospitals lack the infrastructure to execute testing. Our aim was to evaluate the cost of developing and implementing a penicillin allergy referral program for pregnant individuals at an academic institution and to compare costs of care between patients who were referred and not referred through the program. STUDY DESIGN We conducted an economic analysis of our institution's antepartum penicillin allergy referral program. We prospectively collected detailed resource utilization data and conducted the analysis from the program's perspective, accounting for costs related to program development, allergy verification, antibiotic cost, and delivery hospitalization. Costs were compared between patients who were referred for evaluation versus patients who were not referred using bivariate tests as well as quantile regression adjusting for baseline differences. A sensitivity analysis was performed for allergy testing cost. All cost estimates were inflation adjusted to 2021 U.S. dollars. RESULTS The startup cost of program development and educational initiatives was $19,920, or 86 per patient. The median allergy evaluation cost was $397 (interquartile range: $303-663). There was no significant difference in maternal (median: $13,579 vs. 13,999, p = 0.94) or neonatal (median: $3,565 vs. 3,577, p = 0.55) delivery hospitalization cost or antibiotic cost (median: $1.57 vs. 3.87, p = 0.10) between referred and nonreferred patients. Overall, the total cost per person did not differ significantly between study groups (median: $18,931 vs. 18,314, p = 0.69). CONCLUSION The cost of developing a penicillin allergy referral program in pregnancy was modest and did not significantly alter short-term cost of care with potential for long-term cost benefit. Verification of a reported penicillin allergy is an integral part of antibiotic stewardship, and the pregnancy period should be utilized as an important opportunity to perform this evaluation. KEY POINTS · The cost of developing and implementing an antepartum penicillin allergy referral program is modest.. · Program cost did not significantly alter short-term cost with a potential for long-term cost benefit.. · Penicillin allergy verification is an important part of antibiotic stewardship and should be expanded..
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Affiliation(s)
- Martina S Burn
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut
- Department of Obstetrics, Gynecology and Women's Health, University of Minnesota, Minneapolis, Minnesota
| | - Xiao Xu
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut
| | - Jason Kwah
- Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut
| | - Jane Liao
- Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut
| | - Moeun Son
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut
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Azmy V, Lundsberg LS, Culhane J, Kwah J, Partridge C, Son M. Pregnant Patients with a Documented History of Penicillin Allergy and Associated Maternal and Neonatal Outcomes at a Tertiary Care Center. Am J Perinatol 2024; 41:e2051-e2057. [PMID: 37211008 DOI: 10.1055/a-2096-5002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
OBJECTIVE Pregnant individuals are likely to need antibiotics during the peripartum period. For pregnant individuals who report a history of penicillin allergy, non-β-lactam antibiotics are often administered. Compared with first-line β-lactam antibiotics, alternative antibiotics can be less effective, more toxic, and more costly. It remains unclear if being labeled with a penicillin allergy is associated with adverse maternal and neonatal outcomes. STUDY DESIGN We conducted a retrospective cohort study of all pregnant patients who delivered a viable singleton between 24 and 42 weeks of gestation at a large academic hospital from 2013 to 2021. We compared patients who had a documented penicillin allergy history in their electronic medical record versus those who did not and examined whether there were significant differences in maternal outcomes and neonatal outcomes. Bivariable and multivariable analyses were performed. RESULTS Of 41,943 eligible deliveries included in the analysis, 4,705 (11.2%) patients had a penicillin allergy history documented in their electronic medical record and 37,238 (88.8%) did not. Even after adjusting for potential confounders, patients with a documented penicillin allergy had a higher risk of postpartum endometritis (adjusted odds ratio [aOR]: 1.46; 95% confidence interval [CI]: 1.01-2.11) and a higher risk of their neonates having a postnatal hospital stay lasting more than 72 hours (aOR: 1.10; 95% CI: 1.02-1.18). There were no significant differences seen in the other maternal and neonatal outcomes in both bivariable and multivariable analyses. CONCLUSION Pregnant patients who are labeled as having a penicillin allergy are more likely to have postpartum endometritis, and neonates born to mothers who are labeled as having a penicillin allergy are more likely to have a postnatal hospital stay lasting more than 72 hours. There were no other significant differences seen in pregnant patients and their newborns whether they were labeled as having a penicillin allergy history or not. However, pregnant individuals with a penicillin allergy documented in their medical record were significantly more likely to receive alternative non-β lactam antibiotics, and may have benefitted from having more details of their allergy history available as well as proper allergy verification with testing. KEY POINTS · It is unclear whether pregnant individuals labeled with penicillin allergies have worse obstetric outcomes.. · These individuals were significantly more likely to have endometritis and their newborns hospitalized for >72 hours.. · They were significantly more likely to receive alternative non-β lactam antibiotics than those without documented allergies..
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Affiliation(s)
- Veronica Azmy
- Section of Rheumatology, Allergy and Clinical Immunology, Department of Medicine, Yale School of Medicine, New Haven, Connecticut
| | - Lisbet S Lundsberg
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut
| | - Jennifer Culhane
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut
| | - Jason Kwah
- Section of Rheumatology, Allergy and Clinical Immunology, Department of Medicine, Yale School of Medicine, New Haven, Connecticut
| | | | - Moeun Son
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut
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Wang LA, Baer RJ, Namazy JA, Chambers CD. Maternal penicillin allergy and infant outcomes: Results from a large administrative cohort. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2024; 12:1080-1082.e1. [PMID: 38092226 DOI: 10.1016/j.jaip.2023.12.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 11/09/2023] [Accepted: 12/04/2023] [Indexed: 12/31/2023]
Affiliation(s)
- Laura A Wang
- Department of Pediatrics, Division of Allergy and Immunology, University of Colorado, Aurora, Colo.
| | - Rebecca J Baer
- Department of Pediatrics and Herbert Wertheim School of Public Health and Human Longevity Science, University of California San Diego, La Jolla, Calif
| | - Jennifer A Namazy
- Division of Allergy and Immunology, Scripps Clinic, San Diego, Calif
| | - Christina D Chambers
- Department of Pediatrics and Herbert Wertheim School of Public Health and Human Longevity Science, University of California San Diego, La Jolla, Calif
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Stephen ED, Patel M, Laursen L, Bandi S. Impact of a dedicated referral pathway for the evaluation of penicillin allergy during pregnancy. Ann Allergy Asthma Immunol 2024; 132:245-247. [PMID: 37898327 DOI: 10.1016/j.anai.2023.10.026] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 10/10/2023] [Accepted: 10/20/2023] [Indexed: 10/30/2023]
Affiliation(s)
- Ellen Daily Stephen
- Division of Allergy/Immunology, Department of Medicine, Rush University Medical Center, Chicago, Illinois.
| | - Malina Patel
- Division of Allergy/Immunology, Department of Medicine, Montefiore Medical Center, Bronx, NY
| | - Laura Laursen
- Department of Obstetrics/Gynecology, Rush University Medical Center, Chicago, Illinois
| | - Sindhura Bandi
- Division of Allergy/Immunology, Department of Medicine, Rush University Medical Center, Chicago, Illinois
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Gleeson PK, Rizwan M, Apter AJ, Katsnelson M, Curley CM, Fadugba OO. Demographic factors associated with penicillin allergy evaluation in pregnancy. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2024; 12:526-527. [PMID: 37992893 DOI: 10.1016/j.jaip.2023.11.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 11/02/2023] [Accepted: 11/13/2023] [Indexed: 11/24/2023]
Affiliation(s)
- Patrick K Gleeson
- Section of Allergy and Immunology, Division of Pulmonary, Allergy and Critical Care Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pa
| | - Marvi Rizwan
- Section of Allergy and Immunology, Division of Pulmonary, Allergy and Critical Care Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pa
| | - Andrea J Apter
- Section of Allergy and Immunology, Division of Pulmonary, Allergy and Critical Care Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pa
| | - Marina Katsnelson
- Division of Obstetrics and Gynecology, Hospital of the University of Pennsylvania, Philadelphia, Pa
| | - Cara M Curley
- Division of Obstetrics and Gynecology, Hospital of the University of Pennsylvania, Philadelphia, Pa
| | - Olajumoke O Fadugba
- Section of Allergy and Immunology, Division of Pulmonary, Allergy and Critical Care Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pa.
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Lee EY, Copaescu AM, Trubiano JA, Phillips EJ, Wolfson AR, Ramsey A. Drug Allergy in Women. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2023; 11:3615-3623. [PMID: 37805007 DOI: 10.1016/j.jaip.2023.09.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 08/21/2023] [Accepted: 09/27/2023] [Indexed: 10/09/2023]
Abstract
Across all settings, women self-report more drug allergies than do men. Although there is epidemiologic evidence of increased drug allergy labeling in postpubertal females, the evidence base for female sex as a risk factor for true immune-mediated drug hypersensitivity reactions (DHRs), particularly in fatal drug-induced anaphylaxis, is low. A focus on the known immunologic mechanisms described in immediate and delayed DHR, layered on known hormonal and genetic sex differences that drive other immune-mediated diseases, could be the key to understanding biological sex variations in DHR. Particular conditions that highlight the impact of drug allergy in women include (1) pregnancy, in which a drug allergy label is associated with increased maternal and fetal complications; (2) multiple drug intolerance syndrome, associated with anxiety and depression; and (3) female-predominant autoimmune medical conditions in the context of mislabeling of the drug allergy or increased underlying risk. In this review, we describe the importance of drug allergy in the female population, mainly focusing on the epidemiology and risk, the mechanisms, and the associated conditions and psychosocial factors. By performing a detailed analysis of the current literature, we provide focused conclusions and identify existing knowledge gaps that should be prioritized for future research.
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Affiliation(s)
- Erika Yue Lee
- Division of Clinical Immunology and Allergy, Department of Medicine, University of Toronto, Toronto, Ontario, Canada; Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada; Eliot Phillipson Clinician-Scientist Training Program, University of Toronto, Toronto, Ontario, Canada
| | - Ana Maria Copaescu
- Centre for Antibiotic Allergy and Research, Department of Infectious Diseases, Austin Health, Heidelberg, Victoria, Australia; Division of Allergy and Clinical Immunology, Department of Medicine, McGill University Health Centre, McGill University, Montreal, Quebec, Canada; Research Institute of McGill University Health Centre, McGill University, McGill University Health Centre, Montreal, Quebec, Canada; Department of Medicine, Austin Health, University of Melbourne, Heidelberg, Victoria, Australia
| | - Jason A Trubiano
- Centre for Antibiotic Allergy and Research, Department of Infectious Diseases, Austin Health, Heidelberg, Victoria, Australia; National Centre for Infections in Cancer, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia; Department of Infectious Diseases, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Elizabeth J Phillips
- Center for Drug Safety and Immunology, Vanderbilt University Medical Centre, Nashville, Tenn; Institute for Immunology and Infectious Diseases, Murdoch University, Murdoch, Western Australia, Australia
| | - Anna R Wolfson
- Division of Rheumatology, Allergy, and Immunology, Department of Medicine, Massachusetts General Hospital, Boston, Mass; Department of Medicine, Harvard Medical School, Massachusetts General Hospital, Boston, Mass
| | - Allison Ramsey
- Rochester Regional Health, Rochester, NY; Clinical Assistant Professor of Medicine, Department of Allergy/Immunology/Rheumatology, University of Rochester, Rochester, NY.
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Quartuccio KS, Golden K, Tesini B, Stern J, Seligman NS. Impact of antimicrobial stewardship interventions on peripartum antibiotic prescribing in patients with penicillin allergy. Am J Obstet Gynecol MFM 2023; 5:101074. [PMID: 37499906 DOI: 10.1016/j.ajogmf.2023.101074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 06/27/2023] [Accepted: 06/28/2023] [Indexed: 07/29/2023]
Abstract
BACKGROUND Beta-lactam antibiotics (eg, penicillins, cephalosporins, and carbapenems) are preferred for group B streptococcus prophylaxis, intra-amniotic infection, and cesarean surgical site infection prophylaxis. Non-beta-lactam alternatives are associated with inferior efficacy and contribute to higher rates of surgical site infection and longer lengths of stay. Most patients who report a penicillin allergy can tolerate penicillins without any adverse reaction. There are low rates of cross-reactivity between penicillins and other beta-lactams, including cephalosporins and carbapenems. Efforts to evaluate penicillin allergy and promote the use of beta-lactams are needed. OBJECTIVE This study aimed to evaluate whether an antimicrobial stewardship intervention improved the use of first-line antibiotics for peripartum indications in patients with a reported penicillin allergy, following updates to institutional guidelines. STUDY DESIGN This was a retrospective study of adult patients presenting for vaginal or cesarean delivery at 2 hospitals within a healthcare system. Patients received at least 1 dose of antibiotics for a peripartum indication between May 1, 2018, and October 31, 2018 (preintervention group) and May 1, 2020, to October 31, 2020 (postintervention group). The stewardship intervention bundle, which was implemented between March 2019 and April 2020, included updates to institutional antibiotic guidelines, reclassification of severe penicillin allergy, development of obstetrical prophylaxis and treatment order sets, promotion of allergy referral services, and establishment of a physician champion. The primary outcome was the composite rates of patients with reported penicillin allergy who received a preferred antibiotic for a peripartum indication. The secondary measures included maternal and neonatal outcomes. RESULTS A total of 192 patients with a history of documented penicillin allergy were evaluated (96 patients in the preintervention group and 96 patients in the postintervention group). Hives were the most commonly reported index symptom in both groups (40/96 [41.7%] vs 39/96 [40.6%]; P=.883). After stewardship interventions, there was a significant increase in the rate of preferred antibiotic use (33/96 [34.3%] vs 81/96 [84.3%]; P<.001). The effect was the greatest in patients with nonsevere allergy (14/76 [18.4%] vs 68/82 [82.9%]; P<.001). There was no difference in the rates of postpartum endometritis, 30-day readmission, 90-day surgical site infection, or neonatal early-onset sepsis between the pre- and postintervention groups. Of note, 1 patient in the postintervention group experienced itching, and another patient developed a rash, both of which resolved with medical management. CONCLUSION A comprehensive antibiotic stewardship intervention was associated with a 50% increase in the use of preferred antibiotics for peripartum indications in patients with penicillin allergy. Allergic reactions with first-line beta-lactams were minimal and manageable.
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Affiliation(s)
- Katelyn S Quartuccio
- Department of Pharmacy, Highland Hospital, University of Rochester Medical Center, Rochester, NY (Drs Quartuccio and Golden)
| | - Kelly Golden
- Department of Pharmacy, Highland Hospital, University of Rochester Medical Center, Rochester, NY (Drs Quartuccio and Golden)
| | - Brenda Tesini
- Departments of Medicine (Dr Tesini) and Allergy, Immunology, and Rheumatology (Dr Stern), University of Rochester School of Medicine, Rochester, NY
| | - Jessica Stern
- Departments of Medicine (Dr Tesini) and Allergy, Immunology, and Rheumatology (Dr Stern), University of Rochester School of Medicine, Rochester, NY
| | - Neil S Seligman
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, University of Rochester School of Medicine, Rochester, NY (Dr Seligman).
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Snider JB, Mithal LB, Kwah JH, Rhodes NJ, Son M. Antibiotic choice for Group B Streptococcus prophylaxis in mothers with reported penicillin allergy and associated newborn outcomes. BMC Pregnancy Childbirth 2023; 23:400. [PMID: 37254067 PMCID: PMC10228028 DOI: 10.1186/s12884-023-05697-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 05/10/2023] [Indexed: 06/01/2023] Open
Abstract
OBJECTIVE To evaluate the choice of antibiotic used for intrapartum Group B Streptococcus (GBS) prophylaxis in pregnant individuals with reported penicillin allergies compared to those without reported penicillin allergies and investigate whether there are associated differences in neonatal outcomes. STUDY DESIGN This retrospective cohort study included mother-infant dyads of GBS positive pregnant individuals who labored and delivered newborns ≥ 35 weeks of gestation at a high-volume urban hospital (2005-2018). The type of antibiotic administered to the mothers for GBS prophylaxis (beta-lactam prophylaxis defined as penicillin-class drug or cefazolin; alternative prophylaxis defined as vancomycin or clindamycin) was compared between those with a penicillin allergy documented in their medical record versus those who did not. Neonatal outcomes included number of postnatal blood draws, antibiotic administration, neonatal intensive care unit (NICU) admission, bacteremia, and hospital length of stay and were compared between groups. Bivariable and multivariable analyses were performed. RESULTS Of 11,334 mother-infant pairs, 1170 (10.3%) mothers had a penicillin allergy documented in their medical record. Of them, 49 (4.2%) received a penicillin, 259 (22.1%) received cefazolin, 449 (38.4%) received clindamycin, and 413 (35.3%) received vancomycin. Patients with a reported penicillin allergy were significantly more likely to receive alternative GBS prophylaxis compared to those without penicillin allergy (73.7% vs. 0.2%, p < 0.01). Neonates of patients who received alternative GBS prophylaxis were significantly more likely to undergo a postnatal lab draw compared to neonates of patients who received beta-lactam antibiotics (20.8% vs. 17.3%, OR 1.25 (95% CI 1.08-1.46)). This significant association persisted after adjusting for potential confounders (aOR 1.23, 95% CI 1.06-1.43). There were no other significant differences seen in other newborn outcomes. CONCLUSION Pregnant individuals who report a penicillin allergy were more likely to receive alternative antibiotics for GBS prophylaxis compared to those without a penicillin allergy. This was associated with an increased frequency of postnatal blood draws among neonates of mothers with a reported penicillin allergy. Administration of alternative intrapartum antibiotic prophylaxis with vancomycin or clindamycin is common in individuals with self-reported penicillin allergy, and maternal alternative antibiotic administration may impact neonatal care, particularly via increased lab draws.
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Affiliation(s)
- Josephine B Snider
- Department of Pediatrics, Division of Hospital-Based Medicine, Ann and Robert H. Lurie Children's Hospital of Chicago and Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Leena B Mithal
- Department of Pediatrics, Division of Infectious Diseases, Ann and Robert H. Lurie Children's Hospital of Chicago and Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Jason H Kwah
- Department of Medicine, Section of Rheumatology, Allergy, and Immunology, School of Medicine, Yale University, New Haven, CT, USA
| | - Nathaniel J Rhodes
- Midwestern University Chicago College of Pharmacy,Center of Pharmacometric Excellence, Midwestern University, Downers Grove, IL, USA
| | - Moeun Son
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Section of Maternal-Fetal Medicine, School of Medicine, Yale University, 333 Cedar Street, P.O. Box 208063, New Haven, CT, 06520, USA.
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11
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Samarakoon U, Accarino J, Wurcel AG, Jaggers J, Judd A, Blumenthal KG. Penicillin allergy delabeling: Opportunities for implementation and dissemination. Ann Allergy Asthma Immunol 2023; 130:554-564. [PMID: 36563744 DOI: 10.1016/j.anai.2022.12.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 12/01/2022] [Accepted: 12/09/2022] [Indexed: 12/24/2022]
Abstract
Although existing as a safety measure to prevent iatrogenic harm, unconfirmed penicillin allergy labels have a negative impact on personal and public health. One downstream effect of unconfirmed penicillin allergy is the continued emergence and transmission of resistant bacteria and their associated health care costs. Recognizing the consequences of inaccurate penicillin allergy labels, professional and public health organizations have started promoting the adoption of proactive penicillin allergy evaluations, with the ultimate goal of removing the penicillin allergy label when the allergy is disproved, also known as penicillin allergy "delabeling." A penicillin allergy evaluation includes a comprehensive allergy history often followed by drug challenge, sometimes with preceding skin testing. Currently, penicillin allergy delabeling is largely carried out by allergy specialists in outpatient settings. Penicillin allergy delabeling is performed on inpatients, albeit rarely, often at the time of need, as a point-of-care procedure. Access to penicillin allergy evaluation services is limited. Recent studies demonstrate the feasibility of expanding penicillin allergy evaluations and delabeling to internists, pediatricians, emergency medicine physicians, infectious diseases specialists, and clinical pharmacists. However, reducing the impact of mislabeled penicillin allergy will require comprehensive efforts and new investments. In this review, we summarize the current practices of penicillin allergy delabeling and discuss expansion opportunities for penicillin allergy delabeling as quality improvement.
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Affiliation(s)
- Upeka Samarakoon
- Division of Rheumatology, Allergy, and Immunology, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts; Mongan Institute, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts
| | - John Accarino
- Division of Rheumatology, Allergy, and Immunology, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts
| | - Alysse G Wurcel
- Division of Geographic Medicine and Infectious Diseases, Department of Medicine, Tufts Medical Center, Boston, Massachusetts; Tufts University School of Medicine, Boston, Massachusetts
| | - Jordon Jaggers
- Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts
| | - Allen Judd
- Division of Rheumatology, Allergy, and Immunology, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts; Mongan Institute, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts
| | - Kimberly G Blumenthal
- Division of Rheumatology, Allergy, and Immunology, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts; Mongan Institute, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts; Harvard Medical School, Boston, Massachusetts.
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Dunham TB, Gardner RM, Lippner EA, Fasani DE, Moir E, Halpern-Felsher B, Sundaram V, Liu AY. Digital Antibiotic Allergy Decision Support Tool Improves Management of β-Lactam Allergies. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2023; 11:1243-1252.e6. [PMID: 36736957 PMCID: PMC10085826 DOI: 10.1016/j.jaip.2023.01.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 12/20/2022] [Accepted: 01/02/2023] [Indexed: 02/04/2023]
Abstract
BACKGROUND Frontline providers frequently make time-sensitive antibiotic choices, but many feel poorly equipped to handle antibiotic allergies. OBJECTIVE We hypothesized that a digital decision support tool could improve antibiotic selection and confidence when managing β-lactam allergies. METHODS A digital decision support tool was designed to guide non-allergist providers in managing patients with β-lactam allergy labels. Non-allergists were asked to make decisions in clinical test cases without the tool, and then with it. These decisions were compared using paired t tests. Users also completed surveys assessing their confidence in managing antibiotic allergies. RESULTS The tool's algorithm was validated by confirming its recommendations aligned with that of five allergists. Non-allergist providers (n = 102) made antibiotic management decisions in test cases, both with and without the tool. Use of the tool increased the proportion of correct decisions from 0.41 to 0.67, a difference of 0.26 (95% CI, 0.22-0.30; P < .001). Users were more likely to give full-dose antibiotics in low-risk situations, give challenge doses in medium-risk situations, and avoid the antibiotic and/or consult allergy departments in high-risk situations. A total of 98 users (96%) said the tool would increase their confidence when choosing antibiotics for patients with allergies. CONCLUSIONS A point-of-care clinical decision tool provides allergist-designed guidance for non-allergists and is a scalable system for addressing antibiotic allergies, irrespective of allergist availability. This tool encouraged appropriate antibiotic use in low- and medium-risk situations and increased caution in high-risk situations. A digital support tool should be considered in quality improvement and antibiotic stewardship efforts.
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Affiliation(s)
- Theresa B Dunham
- Division of Allergy, Immunology, and Rheumatology, Department of Pediatrics, Stanford University School of Medicine, Stanford, Calif.
| | - Rebecca M Gardner
- Quantitative Sciences Unit, Department of Medicine, Stanford University School of Medicine, Stanford, Calif
| | - Elizabeth A Lippner
- Division of Allergy and Immunology, Department of Pediatrics, Anne and Robert H. Lurie Children's Hospital and Northwestern Feinberg School of Medicine, Chicago, Ill
| | | | - Elwyn Moir
- Clinical Observation and Medical Transcription Program, Stanford, Calif
| | - Bonnie Halpern-Felsher
- Division of Adolescent Medicine, Department of Pediatrics, Stanford University, Palo Alto, Calif
| | - Vandana Sundaram
- Quantitative Sciences Unit, Department of Medicine, Stanford University School of Medicine, Stanford, Calif
| | - Anne Y Liu
- Division of Allergy, Immunology, and Rheumatology, Department of Pediatrics, Stanford University School of Medicine, Stanford, Calif; Division of Infectious Diseases and Geographic Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, Calif
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13
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Wolfson AR, Schatz MX. Management of the Pregnant Patient with Beta-Lactam Allergy. Curr Allergy Asthma Rep 2023; 23:189-194. [PMID: 36749447 DOI: 10.1007/s11882-023-01069-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/20/2023] [Indexed: 02/08/2023]
Abstract
PURPOSE OF REVIEW We review the literature and discuss the logistics of testing pregnant patients for penicillin allergy. RECENT FINDINGS As in the general population, pregnant patients commonly report a penicillin allergy, but most patients are able to tolerate penicillin. Avoidance of beta-lactams in pregnancy is associated with increased morbidity: longer hospitalizations, more frequent infections, and more complications. Penicillin allergy testing is safe in pregnant patients, and obstetricians are eager for allergists to offer this procedure to their patients. As allergists, we can improve our patients' health outcomes by offering penicillin allergy testing in our practices. The protocols for testing both with and without skin testing in pregnant patients have been studied, and future studies will continue to clarify the safety and efficacy of penicillin allergy delabeling in pregnant patients.
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Affiliation(s)
- Anna R Wolfson
- Harvard Medical School, Boston, MA, USA. .,Division of Rheumatology, Allergy, and Immunology, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA.
| | - Michael X Schatz
- Department of Allergy, Kaiser Permanente Medical Center, San Diego, CA, USA
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14
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Cate JJM, Burn M, Kwah J, Liao J, Illuzzi J, Reddy U, Son M. Survey of Obstetric Providers to Assess the Knowledge and Management of a Reported Penicillin Allergy in Pregnant Women. Am J Perinatol 2023; 40:1-8. [PMID: 35709740 DOI: 10.1055/a-1877-9970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
OBJECTIVE Penicillin allergy is the most commonly reported drug allergy in the United States; however, less than 10% of individuals labeled with a penicillin allergy are truly allergic. A reported penicillin allergy in pregnancy is associated with adverse maternal and perinatal outcomes. Despite recommendations for penicillin allergy testing in pregnancy, limited literature regarding obstetric providers' comfort and knowledge in addressing penicillin allergy and referral patterns exists. The objective of this study is to survey obstetric providers to assess their clinical practice patterns and baseline penicillin allergy knowledge, identify potential knowledge gaps in the management of pregnant patients with reported penicillin allergy, and measure the impact of an educational intervention on provider knowledge and practice patterns. STUDY DESIGN An anonymous, electronic 23-question survey administered to all obstetric providers at a single academic medical center assessed obstetric provider characteristics, self-reported antibiotic practice patterns, and antibiotic allergy knowledge before (June 19, 2020) and after (September 16, 2020) a penicillin allergy educational intervention, which consisted of multiple small-group educational sessions and a culminating departmental educational session. Discrete knowledge comparison by provider type and experience level of pre- and postintervention was performed using chi-square tests. RESULTS Of 277 obstetric providers invited, 124 (45%) responded preintervention and 62 (22%) postintervention. In total, 27% correctly identified the percentage of patients labeled penicillin allergic who would tolerate penicillins, 45% identified cephalosporin cross-reactivity, 59% understood penicillin allergies can wane, and 54% identified penicillin skin testing (PST) as a valid allergy verification tool. Among 48 respondents who attended educational sessions and responded postintervention, their knowledge of penicillin allergy waning (79% preeducation vs. 98% posteducation, p < 0.01) and PST as a valid tool for penicillin allergy verification (50% preeducation vs. 83% posteducation, p < 0.01) improved. CONCLUSION Knowledge gaps related to penicillin allergy exist among obstetric providers. Educational initiatives may improve provider knowledge, help in the identification of patients requiring penicillin allergy evaluation, and reduce referral barriers. KEY POINTS · Obstetric providers lack adequate knowledge of penicillin allergy.. · Educational interventions can improve discrete knowledge.. · Limited knowledge is a barrier to allergy referral for penicillin allergy delabeling..
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Affiliation(s)
- Jennifer J M Cate
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut
| | - Martina Burn
- Section of Maternal-Fetal Medicine, Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut
| | - Jason Kwah
- Section of Rheumatology, Allergy, and Immunology, Department of Medicine, Yale School of Medicine, New Haven, Connecticut
| | - Jane Liao
- Department of Medicine, Yale School of Medicine, New Haven, Connecticut
| | - Jessica Illuzzi
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut
| | - Uma Reddy
- Section of Maternal-Fetal Medicine, Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut
| | - Moeun Son
- Section of Maternal-Fetal Medicine, Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut
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15
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Khan DA, Banerji A, Blumenthal KG, Phillips EJ, Solensky R, White AA, Bernstein JA, Chu DK, Ellis AK, Golden DBK, Greenhawt MJ, Horner CC, Ledford D, Lieberman JA, Oppenheimer J, Rank MA, Shaker MS, Stukus DR, Wallace D, Wang J, Khan DA, Golden DBK, Shaker M, Stukus DR, Khan DA, Banerji A, Blumenthal KG, Phillips EJ, Solensky R, White AA, Bernstein JA, Chu DK, Ellis AK, Golden DBK, Greenhawt MJ, Horner CC, Ledford D, Lieberman JA, Oppenheimer J, Rank MA, Shaker MS, Stukus DR, Wallace D, Wang J. Drug allergy: A 2022 practice parameter update. J Allergy Clin Immunol 2022; 150:1333-1393. [PMID: 36122788 DOI: 10.1016/j.jaci.2022.08.028] [Citation(s) in RCA: 173] [Impact Index Per Article: 86.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 08/18/2022] [Accepted: 08/30/2022] [Indexed: 12/14/2022]
Affiliation(s)
- David A Khan
- Department of Internal Medicine, Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas, Tex
| | - Aleena Banerji
- Department of Internal Medicine, Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Boston, Mass
| | - Kimberly G Blumenthal
- Department of Internal Medicine, Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Boston, Mass
| | - Elizabeth J Phillips
- Institute for Immunology and Infectious Diseases, Murdoch University, Murdoch, Western Australia; Department of Medicine, Vanderbilt University Medical Center, Nashville, Tenn
| | - Roland Solensky
- Corvallis Clinic, Oregon State University/Oregon Health Science University College of Pharmacy, Corvallis, Ore
| | - Andrew A White
- Department of Allergy, Asthma and Immunology, Scripps Clinic, San Diego, Calif
| | - Jonathan A Bernstein
- Department of Internal Medicine, Division of Immunology, Allergy Section, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Derek K Chu
- Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, Ontario, Canada; Department of Medicine, McMaster University, Hamilton, Ontario, Canada; The Research Institute of St Joe's Hamilton, Hamilton, Ontario, Canada
| | - Anne K Ellis
- Division of Allergy and Immunology, Department of Medicine, Queen's University, Kingston, Ontario, Canada
| | - David B K Golden
- Division of Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, Md
| | - Matthew J Greenhawt
- Food Challenge and Research Unit Section of Allergy and Immunology, Children's Hospital Colorado University of Colorado School of Medicine, Aurora, Colo
| | - Caroline C Horner
- Department of Pediatrics, Division of Allergy Pulmonary Medicine, Washington University School of Medicine, St Louis, Mo
| | - Dennis Ledford
- Division of Allergy and Immunology, Department of Medicine, University of South Florida Morsani College of Medicine, Tampa, Fla; James A. Haley Veterans Affairs Hospital, Tampa, Fla
| | - Jay A Lieberman
- Division of Allergy and Immunology, The University of Tennessee Health Science Center, Memphis, Tenn
| | - John Oppenheimer
- Division of Allergy, Rutgers New Jersey Medical School, Rutgers, NJ
| | - Matthew A Rank
- Division of Allergy, Asthma, and Clinical Immunology, Mayo Clinic in Arizona, Scottsdale, Ariz
| | - Marcus S Shaker
- Department of Pediatrics, Dartmouth-Hitchcock Medical Center, Lebanon, NH
| | - David R Stukus
- Division of Allergy and Immunology, Nationwide Children's Hospital, Columbus, Ohio; The Ohio State University College of Medicine, Columbus, Ohio
| | - Dana Wallace
- Nova Southeastern Allopathic Medical School, Fort Lauderdale, Fla
| | - Julie Wang
- Division of Allergy and Immunology, Department of Pediatrics, The Elliot and Roslyn Jaffe Food Allergy Institute, Icahn School of Medicine at Mount Sinai, New York, NY
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Kwah JH, Burn MS, Liao J, Cate J, Son M. Outpatient penicillin allergy evaluation during pregnancy and associated clinical outcomes. Am J Obstet Gynecol MFM 2022; 4:100674. [PMID: 35691578 DOI: 10.1016/j.ajogmf.2022.100674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 06/03/2022] [Accepted: 06/07/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND Beta-lactam antibiotics are often clinically indicated in the peripartum period, posing a challenge for pregnant women who report a penicillin allergy. Allergy verification testing is rarely performed during pregnancy even though most women do not have a true allergy. OBJECTIVE To evaluate a hospital-wide multidisciplinary program introduced in August 2020 to identify, refer, evaluate, and test pregnant women with unverified penicillin allergies, and assess its association with maternal and neonatal outcomes. STUDY DESIGN We conducted a retrospective cohort study at a large academic hospital of all pregnant women with a penicillin allergy documented in the electronic medical record who delivered from September 2020 to October 2021. Data were abstracted by chart review. Women referred for penicillin allergy evaluation were compared to those who were not. Maternal outcomes were alternative antibiotic (clindamycin or vancomycin) use, postpartum infection, and maternal length of postpartum hospital stay. Neonatal outcomes were intensive care unit admission, postnatal blood draw, antibiotic treatment, and birth hospitalization length of hospital stay. Bivariate and multivariable analyses were performed. RESULTS Of 689 women with a documented penicillin allergy, 232 (33.7%) were referred for allergy evaluation during the study period. Of those referred, 175 (75.4%) underwent allergy consultation and 167 (95.4%) of them were considered appropriate for allergy verification testing. 117 (70.1%) underwent skin testing with or without graded oral amoxicillin drug challenge, and all but one (99.1%) were found to be penicillin tolerant. Five additional women were de-labeled of their penicillin allergy based on history and pharmacy confirmation of penicillin tolerance subsequent to index reaction. Referred women had a 62% lower likelihood of receiving an alternative antibiotic than those who were not referred, and this significance persisted even after adjusting for potential confounders (aOR 0.49, 95% CI 0.27-0.89). Other maternal and neonatal adverse outcomes were less frequent in those referred, but these associations did not reach statistical significance. CONCLUSION This study documents the feasibility, safety, and clinical benefit of an outpatient penicillin allergy referral program for pregnant women. Referred patients were significantly less likely to receive alternative antibiotics, however, more patients are needed to assess whether there are additional clinical benefits.
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Affiliation(s)
- Jason H Kwah
- Section of Rheumatology, Allergy, and Immunology, Department of Internal Medicine, Yale School of Medicine, New Haven, CT
| | - Martina S Burn
- Section of Maternal-Fetal Medicine, Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, New Haven, CT
| | - Jane Liao
- Section of Rheumatology, Allergy, and Immunology, Department of Internal Medicine, Yale School of Medicine, New Haven, CT
| | - Jennifer Cate
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Duke University School of Medicine, Durham, NC
| | - Moeun Son
- Section of Maternal-Fetal Medicine, Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, New Haven, CT.
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17
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Miceli LM, Chang OH, Zhang S, Yao M, Propst K. Antimicrobial Stewardship in Patients with Penicillin Allergy Undergoing Hysterectomy for Benign Indications. J Gynecol Surg 2022. [DOI: 10.1089/gyn.2021.0134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Lia M. Miceli
- Department of Obstetrics and Gynecology and Women's Health Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Olivia H. Chang
- Department of Obstetrics and Gynecology and Women's Health Institute, Cleveland Clinic, Cleveland, Ohio, USA
- Center for Urogynecology and Pelvic Reconstructive Surgery, Cleveland Clinic, Cleveland, Ohio, USA
| | - Salina Zhang
- Case Western Reserve School of Medicine, Cleveland, Ohio, USA
| | - Meng Yao
- Department of Quantitative Health Sciences, Cleveland Clinic, Cleveland, Ohio, USA
| | - Katie Propst
- Department of Obstetrics and Gynecology and Women's Health Institute, Cleveland Clinic, Cleveland, Ohio, USA
- Center for Urogynecology and Pelvic Reconstructive Surgery, Cleveland Clinic, Cleveland, Ohio, USA
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18
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Patel V, Gleeson PK, Delaney K, Ralston SJ, Feldman S, Fadugba O. Safety and outcomes of penicillin allergy evaluation in pregnant women. Ann Allergy Asthma Immunol 2022; 128:568-574. [PMID: 35123076 DOI: 10.1016/j.anai.2022.01.032] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 01/15/2022] [Accepted: 01/20/2022] [Indexed: 11/23/2022]
Abstract
BACKGROUND Penicillin allergy in pregnancy is associated with increased morbidity and the use of less effective antibiotics. Penicillin allergy evaluation in pregnancy is now recommended as per obstetrical guidelines but remains infrequent. OBJECTIVE We studied pregnant women who underwent penicillin allergy evaluation in an allergy clinic to assess the effectiveness and safety of penicillin skin testing (PST) and incremental drug challenge (IDC) in pregnancy. METHODS Index drug reactions, PST, and IDC results were reviewed. Antibiotic use, pregnancy outcomes, and pregnancy complications were compared with a control cohort of pregnant women with penicillin allergy who did not undergo allergy evaluation before delivery. RESULTS Penicillin allergy was evaluated in 136 women. Culprit drugs included penicillin (37%), amoxicillin (30%), and unknown (20%). Index reactions occurred greater than 5 years ago in 91%, and these reactions were cutaneous or unknown in 92%. Of the 133 patients who underwent skin testing, 131 (99%) had negative or equivocal results and proceeded to incremental challenge. All 131 women passed penicillin IDC. Of the 69 women who ultimately used intrapartum beta-lactam antibiotics, all but 1 patient tolerated them. Women who underwent penicillin allergy evaluation did not have an increased risk of cesarean delivery or other pregnancy complications when compared with women without penicillin allergy evaluation. CONCLUSION PST and IDC can be safely conducted in pregnant women. When evaluated as low risk, most women tolerate IDC and can receive penicillin intrapartum without adverse reactions or negative pregnancy outcomes.
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Affiliation(s)
- Vima Patel
- Section of Allergy and Immunology, Division of Pulmonary, Allergy and Critical Care Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania; Allergy and Asthma Specialists, LLC, Bluebell, Pennsylvania
| | - Patrick K Gleeson
- Section of Allergy and Immunology, Division of Pulmonary, Allergy and Critical Care Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Kathryn Delaney
- Department of Obstetrics and Gynecology, Pennsylvania Hospital, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Steven J Ralston
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, Howard University, Cambridge, Massachusetts
| | - Scott Feldman
- Section of Allergy and Immunology, Division of Pulmonary, Allergy and Critical Care Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Olajumoke Fadugba
- Section of Allergy and Immunology, Division of Pulmonary, Allergy and Critical Care Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.
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19
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Johnston C, Godecker A, Shirley D, Antony KM. Documented β-Lactam Allergy and Risk for Cesarean Surgical Site Infection. Infect Dis Obstet Gynecol 2022; 2022:5313948. [PMID: 35281850 PMCID: PMC8906943 DOI: 10.1155/2022/5313948] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 01/27/2022] [Accepted: 02/15/2022] [Indexed: 11/17/2022] Open
Abstract
Objective To examine the relationship between documented β-lactam allergy and cesarean delivery (CD) surgical site infection (SSI). Study Design. We conducted a retrospective cohort analysis of women who underwent CD at Ben Taub Hospital and Texas Children's Pavilion for Women (Houston, TX) from August 1, 2011, to December 31, 2019. The primary exposure was a documented β-lactam allergy, and the second exposure of interest was the type of perioperative antibiotic received. The primary outcome was the prevalence of SSI. Maternal characteristics were stratified by the presence or absence of a documented β-lactam allergy, and significance was evaluated using Pearson's chi-squared test for categorical variables and t-test for continuous variables. A logistic regression model estimated odds of SSI after adjusting for possible confounders. Results Of the 12,954 women included, 929 (7.2%) had a documented β-lactam allergy while 12,025 (92.8%) did not. Among the 929 women with a β-lactam allergy, 495 (53.3%) received non-β-lactam perioperative prophylaxis. SSI occurred in 38 (4.1%) of women who had a β-lactam allergy versus 238 (2.0%) who did not (p ≤ 0.001). β-Lactam allergy was associated with higher odds of SSI compared to no allergy (adjusted odds ratio (aOR) = 1.97; 95%confidence interval (CI) = 1.24-3.14; p = 0.004) after controlling for age, race, ethnicity, insurance status, delivery body mass index (BMI), tobacco use, intra-amniotic infection in labor, duration of membrane rupture, preterm delivery, delivery indication, diabetes, hypertension, group B Streptococcus colonization, and type of perioperative antibiotic received. Conclusion The presence of a β-lactam allergy is associated with increased odds of developing a CD SSI after controlling for possible confounders, including the type of perioperative antibiotic received.
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Affiliation(s)
- Courtney Johnston
- University of Wisconsin School of Medicine and Public Health, 750 Highland Ave, Madison, WI 53726, USA
| | - Amy Godecker
- Department of Obstetrics and Gynecology, University of Wisconsin School of Medicine and Public Health, 1010 Mound Street Madison, WI 53715, USA
| | - Daniel Shirley
- Division of Infectious Diseases, Department of Medicine, University of Wisconsin School of Medicine and Public Health, 1685 Highland Avenue, 5158 Medical Foundation Centennial Building, Madison WI 53705-2281, USA
| | - Kathleen M. Antony
- Department of Obstetrics and Gynecology, University of Wisconsin School of Medicine and Public Health, 1010 Mound Street Madison, WI 53715, USA
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20
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Duffy CR, Huang Y, Andrikopoulou M, Stern-Ascher CN, Wright JD, D'Alton ME, Friedman AM. Vancomycin during delivery hospitalizations for women with group B streptococcus. J Matern Fetal Neonatal Med 2022; 35:898-906. [PMID: 32160789 PMCID: PMC7757725 DOI: 10.1080/14767058.2020.1733520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 02/07/2020] [Accepted: 02/19/2020] [Indexed: 10/24/2022]
Abstract
OBJECTIVE Vancomycin use for intrapartum GBS prophylaxis is not well characterized. The objective of this study was to describe trends in the use of vancomycin among women undergoing vaginal delivery with group B Streptococcus (GBS) colonization. METHODS An administrative inpatient database that includes medications was analyzed to evaluate antibiotic use in women undergoing vaginal delivery hospitalizations complicated by GBS colonization from January 2006 to March 2015. Patients with other obstetric or infectious indications for antibiotics were excluded. Frequency of use of individual antibiotic agents was determined. The Cochran-Armitage test was used to assess temporal trends. An adjusted log-linear regression model accounting for demographic and hospital factors with vancomycin receipt as the outcome was performed with adjusted risk ratios (aRR) and 95% confidence intervals (CI) as the measure of effect. Hospital level variation in administration of vancomycin was also evaluated. RESULTS 469,717 deliveries met inclusion criteria and were included in this analysis. Use of vancomycin increased from 0.8% of patients in 2006 to 3.8% of patients in the first quarter of 2015. Comparing 2015 to 2006 both the unadjusted (relative risk 4.89 95% CI 4.26-5.60) and adjusted (aRR 4.52 95% 3.94-5.19) models demonstrated significantly increased likelihood of vancomycin administration. In evaluating hospital level vancomycin use, variation was noted with 8.0% of centers administering vancomycin to ≥6.0% of patients. CONCLUSIONS Vancomycin is becoming increasingly commonly used for intrapartum GBS prophylaxis. Further research and quality improvements initiatives are indicated to optimize intrapartum GBS antibiotic prophylaxis.
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Affiliation(s)
- Cassandra R Duffy
- Division of Maternal-Fetal Fetal Medicine, Department of Obstetrics and Gynecology, College of Physicians and Surgeons, Columbia University, New York, NY, USA
| | - Yongmei Huang
- Division of Maternal-Fetal Fetal Medicine, Department of Obstetrics and Gynecology, College of Physicians and Surgeons, Columbia University, New York, NY, USA
| | - Maria Andrikopoulou
- Division of Maternal-Fetal Fetal Medicine, Department of Obstetrics and Gynecology, College of Physicians and Surgeons, Columbia University, New York, NY, USA
| | - Conrad N Stern-Ascher
- Division of Maternal-Fetal Fetal Medicine, Department of Obstetrics and Gynecology, College of Physicians and Surgeons, Columbia University, New York, NY, USA
| | - Jason D Wright
- Division of Maternal-Fetal Fetal Medicine, Department of Obstetrics and Gynecology, College of Physicians and Surgeons, Columbia University, New York, NY, USA
| | - Mary E D'Alton
- Division of Maternal-Fetal Fetal Medicine, Department of Obstetrics and Gynecology, College of Physicians and Surgeons, Columbia University, New York, NY, USA
| | - Alexander M Friedman
- Division of Maternal-Fetal Fetal Medicine, Department of Obstetrics and Gynecology, College of Physicians and Surgeons, Columbia University, New York, NY, USA
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21
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Zembles TN, Vyles DE, Mitchell ML. Management of Children with Reported Penicillin Allergies. Infect Dis Clin North Am 2022; 36:219-229. [DOI: 10.1016/j.idc.2021.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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22
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Anstey KM, Tsao L, Otani IM. Drug Allergy Delabeling Programs: Recent Strategies and Targeted Populations. Clin Rev Allergy Immunol 2022; 62:484-504. [PMID: 35031956 DOI: 10.1007/s12016-021-08913-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/17/2021] [Indexed: 12/12/2022]
Abstract
Drug allergy delabeling programs have become an essential element of antibiotic stewardship. Development of delabeling programs involves careful selection of target patient population, thoughtful design of delabeling approach, stakeholder engagement, assembly of key team members, implementation, and evaluation of clinical and safety outcomes. Recent programs have targeted patients thought to be most likely to benefit from removal of inaccurate antibiotic allergy labels, those with β-lactam antibiotic allergies and high-risk populations likely to need β-lactam antibiotics as first-line treatment. This review provides an overview of current risk stratification methods and β-lactam cross-reactivity data and summarizes how different inpatient and outpatient delabeling programs have used these concepts in delabeling algorithms. β-Lactam delabeling programs for inpatients, pediatric patients, and programs utilizing telehealth have been implemented with good outcomes. This review also focuses on delabeling programs for high-risk populations likely to benefit from first-line β-lactam antibiotics. These populations include perioperative, prenatal, and immunocompromised patients. Delabeling programs have been successful in the inpatient and outpatient settings at enabling appropriate antibiotic use. This article reviews delabeling strategies utilized by these programs with a focus on highlighting elements key to their success and future areas for innovation.
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Affiliation(s)
- Karen M Anstey
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, School of Medicine, Oregon Health & Science University, 3181 S.W. Sam Jackson Park Road, Mail Code UHN67, Portland, OR, 97239, USA.
| | - Lulu Tsao
- Division of Pulmonary, Critical Care, Allergy, and Sleep Medicine, Department of Medicine, School of Medicine, University of California, San Francisco, CA, USA
| | - Iris M Otani
- Division of Pulmonary, Critical Care, Allergy, and Sleep Medicine, Department of Medicine, School of Medicine, University of California, San Francisco, CA, USA
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23
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Zhang BY, Paquette V, McClymont E, Barlas A, Wong T, Watt M, Mak R, Elwood C. Implementing a penicillin allergy delabeling service for the obstetric population. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2021; 9:2501-2502.e2. [DOI: 10.1016/j.jaip.2021.01.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 01/11/2021] [Accepted: 01/12/2021] [Indexed: 12/31/2022]
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Iammatteo M, Solensky R. The Importance of Penicillin Allergy Evaluation in Pregnant Women. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2021; 9:1347-1348. [PMID: 33685611 DOI: 10.1016/j.jaip.2020.12.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 12/08/2020] [Indexed: 10/22/2022]
Affiliation(s)
| | - Roland Solensky
- The Corvallis Clinic, Oregon State University/Oregon Health Science University College of Pharmacy, Corvallis, Ore
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25
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Humphries RM. Group B Streptococcus Dynamics in the United States. Clin Infect Dis 2021; 72:1014-1015. [PMID: 32060524 DOI: 10.1093/cid/ciaa155] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 02/13/2020] [Indexed: 11/14/2022] Open
Affiliation(s)
- Romney M Humphries
- Accelerate Diagnostics, Tucson, Arizona, USA.,Department of Pathology, University of Arizona, Tucson, Arizona, USA
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Outpatient Penicillin Allergy Testing in Pregnant Women Who Report an Allergy. Obstet Gynecol 2021; 137:56-61. [PMID: 33278285 PMCID: PMC7737873 DOI: 10.1097/aog.0000000000004213] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 10/16/2020] [Indexed: 12/25/2022]
Abstract
Pregnant women are accepting of outpatient penicillin allergy testing, and most who report an allergy test negative. OBJECTIVE: To estimate the feasibility, acceptability, and safety of outpatient penicillin allergy testing among pregnant women. METHODS: We conducted a prospective cohort study at a large academic hospital from March 2019 to March 2020. We recruited pregnant women with a self-reported penicillin allergy who underwent allergy testing between 14 0/7 and 36 6/7 weeks of gestation. RESULTS: Of 127 eligible women pregnant women, 74 (58%, 95% CI 4–67%) accepted allergy testing. Fifty completed or intended to complete allergy testing, yielding a feasibility rate of 68% (95% CI 56–78%). Among the 46 women actually tested (who ranged in age from 18 to 42), 93% (95% CI 68–100%) had a negative test result. A systemic reaction (symptoms consistent with anaphylaxis) occurred in only 2 women (4%, 95% CI 0.5–15%) despite 20 (43%) reporting a severe allergy. No woman suffered an adverse event as a result of allergy testing. In multivariate analysis adjusting for age and parity, women with public insurance had decreased odds of undergoing penicillin allergy testing (adjusted odds ratio 0.24, 95% CI 0.08–0.69). CONCLUSION: Outpatient penicillin allergy testing is acceptable and feasible in pregnancy.
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Sousa-Pinto B, Blumenthal KG, Courtney L, Mancini CM, Jeffres MN. Assessment of the Frequency of Dual Allergy to Penicillins and Cefazolin: A Systematic Review and Meta-analysis. JAMA Surg 2021; 156:e210021. [PMID: 33729459 PMCID: PMC7970387 DOI: 10.1001/jamasurg.2021.0021] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 12/17/2020] [Indexed: 12/15/2022]
Abstract
Importance Cefazolin is the preoperative antibiotic of choice because it is safer and more efficacious than second-line alternatives. Surgical patients labeled as having penicillin allergy are less likely to prophylactically receive cefazolin and more likely to receive clindamycin or vancomycin, which results in higher rates of surgical site infections. Objective To examine the incidence of dual allergy to cefazolin and natural penicillins. Data Sources MEDLINE/PubMed, Web of Science, and Embase were searched without language restrictions for relevant articles published from database inception until July 31, 2020. Study Selection In this systematic review and meta-analysis, a search of MEDLINE/PubMed, Web of Science, and Embase was performed for articles published from database inception to July 31, 2020, for studies that included patients who had index allergies to a natural penicillin and were tested for tolerability to cefazolin or that included patients who had index allergies to cefazolin and were tested for tolerability to a natural penicillin. A total of 3228 studies were identified and 2911 were screened for inclusion. Data Extraction and Synthesis Data were independently extracted by 2 authors. Bayesian meta-analysis was used to estimate the frequency of allergic reactions. Main Outcomes and Measures Dual allergy to cefazolin and a natural penicillin. Results Seventy-seven unique studies met the eligibility criteria, yielding 6147 patients. Cefazolin allergy was identified in 44 participants with a history of penicillin allergy, resulting in a dual allergy meta-analytical frequency of 0.7% (95% credible interval [CrI], 0.1%-1.7%; I2 = 74.9%). Such frequency was lower for participants with unconfirmed (0.6%; 95% CrI, 0.1%-1.3%; I2 = 54.3%) than for those with confirmed penicillin allergy (3.0%; 95% CrI, 0.01%-17.0%; I2 = 88.2%). Thirteen studies exclusively assessed surgical patients (n = 3884), among whom 0.7% (95% CrI, 0%-3.3%; I2 = 85.5%) had confirmed allergy to cefazolin. Low heterogeneity was observed for studies of patients with unconfirmed penicillin allergy who had been exposed to perioperative cefazolin (0.1%; 95% CrI, 0.1%-0.3%; I2 = 13.1%). Penicillin allergy was confirmed in 16 participants with a history of cefazolin allergy, resulting in a meta-analytical frequency of 3.7% (95% CrI, 0.03%-13.3%; I2 = 64.4%). The frequency of penicillin allergy was 4.4% (95% CrI, 0%-23.0%; I2 = 75%) for the 8 studies that exclusively assessed surgical patients allergic to cefazolin. Conclusions and Relevance These findings suggest that most patients with a penicillin allergy history may safely receive cefazolin. The exception is patients with confirmed penicillin allergy in whom additional care is warranted.
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Affiliation(s)
- Bernardo Sousa-Pinto
- Department of Community Medicine, Information and Health Decision Sciences, Faculty of Medicine, University of Porto, Porto, Portugal
- Center for Health Technology and Services Research, University of Porto, Porto, Portugal
- Basic and Clinical Immunology Unit, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Kimberly G. Blumenthal
- Division of Rheumatology, Allergy, and Immunology, Massachusetts General Hospital, Boston
- Harvard Medical School, Boston, Massachusetts
- The Mongan Institute, Massachusetts General Hospital, Boston
| | - Lindsay Courtney
- Skaggs School of Pharmacy and Pharmaceutical Sciences, Department of Clinical Pharmacy, University of Colorado Anschutz Medical Campus, Aurora
| | - Christian M. Mancini
- Division of Rheumatology, Allergy, and Immunology, Massachusetts General Hospital, Boston
| | - Meghan N. Jeffres
- Skaggs School of Pharmacy and Pharmaceutical Sciences, Department of Clinical Pharmacy, University of Colorado Anschutz Medical Campus, Aurora
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Lange SM, Sharpe EE, Hertzfeldt DN, Schroeder DR, Sviggum HP. Effect of penicillin allergy on prophylactic antibiotic administration in the parturient undergoing cesarean delivery. Acta Anaesthesiol Scand 2021; 65:329-334. [PMID: 33147356 DOI: 10.1111/aas.13730] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 10/07/2020] [Indexed: 12/19/2022]
Abstract
BACKGROUND Administering antibiotics is often difficult in patients with specific medication allergies. This investigation aimed to determine if a penicillin or cephalosporin allergy increased the risk for not receiving correct timing of prophylactic antibiotics at cesarean delivery. We hypothesized that patients with a penicillin or cephalosporin allergy would be less likely to receive antibiotics prior to incision for cesarean delivery. METHODS All women undergoing cesarean delivery at Mayo Clinic Hospital, from 1 March 2008, to 28 February 2018 were retrospectively identified by electronic medical record query. Patients were grouped based on allergy status to penicillin/cephalosporins. Data recorded included the type and time of antibiotic given in relation to surgical incision. The primary outcome of this study was administration of antibiotics within 60 minutes prior to surgical incision. Characteristics potentially associated with the primary outcome were assessed using logistic regression. RESULTS Of the 818 patients with a penicillin or cephalosporin allergy, 75 (9.2%) did not receive prophylactic antibiotic within 60 minutes prior to skin incision. Conversely, 326 (6.9%) of the 4744 patients without a penicillin or cephalosporin allergy did not receive their prophylactic antibiotic within 60 minutes prior to skin incision (P = .019). Patients undergoing an emergent cesarean delivery were also at an increased risk of not receiving their prophylactic antibiotic within 60 minutes prior to skin incision (P < .001). CONCLUSION Patients with a penicillin or cephalosporin allergy were less likely to receive prophylactic antibiotics within the recommended 60 minutes prior to surgical incision. Clear plans and communication are important for ensuring proper antibiotic administration at cesarean delivery to prevent surgical site infection.
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Affiliation(s)
- Samantha M. Lange
- Department of Anesthesiology and Perioperative Medicine Mayo Clinic Rochester MN USA
| | - Emily E. Sharpe
- Department of Anesthesiology and Perioperative Medicine Mayo Clinic Rochester MN USA
| | - Dana N. Hertzfeldt
- Department of Anesthesiology and Perioperative Medicine Mayo Clinic Rochester MN USA
| | | | - Hans P. Sviggum
- Department of Anesthesiology and Perioperative Medicine Mayo Clinic Rochester MN USA
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Leading the way in penicillin allergy evaluation. Ann Allergy Asthma Immunol 2020; 125:624-625. [PMID: 33218454 DOI: 10.1016/j.anai.2020.09.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Accepted: 09/11/2020] [Indexed: 11/22/2022]
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Penicillin Allergy Assessment in Pregnancy: Safety and Impact on Antibiotic Use. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2020; 9:1338-1346. [PMID: 33212237 DOI: 10.1016/j.jaip.2020.10.063] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 10/27/2020] [Accepted: 10/29/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Penicillin and other beta-lactam antibiotics are recommended for group B Streptococcus and cesarean section prophylaxis, but approximately 10% of pregnant patients report a penicillin allergy. OBJECTIVE To assess the safety and impact of penicillin allergy evaluation in pregnant patients. METHODS In this retrospective study of obstetrician-ordered Allergy/Immunology (AI) electronic consultations (e-consults) from September 20, 2017 through December 31, 2019, we reviewed the electronic health record for e-consult recommendation; patient demographic, obstetric, and allergy histories; and peripartum antibiotic utilization with indication. For patients whose electronic consultation recommended an in-person AI evaluation, testing outcomes were determined, and multivariable logistic regression models were used to compare antibiotic use between patients who did and did not receive an in-person AI evaluation. RESULTS Of 389 obstetrician-ordered e-consults, 363 (93%) recommended an in-person AI evaluation; of these, 222 (61%) patients received an in-person AI evaluation. Of 220 (99%) patients skin tested, 209 (95%) had their penicillin allergy label safely removed. Compared with patients who did not receive an in-person AI evaluation despite it being recommended (n = 141), patients with in-person AI evaluation (n = 222) had reduced peripartum vancomycin (adjusted odds ratio [aOR], 0.07; 95% CI, 0.01-0.33), clindamycin (aOR, 0.17; 95% CI, 0.08-0.34), and gentamicin (aOR, 0.39; 95% CI, 0.19-0.78) use and increased penicillin (aOR, 18.0; 95% CI, 6.30-51.2) use. The fully AI evaluated patients had increased first-line antibiotic prophylaxis for group B Streptococcus (aOR, 26.9; 95% CI, 6.32-114) and cesarean section (aOR, 1.94; 95% CI, 1.06-3.52). CONCLUSIONS In a sample of 220 pregnant patients with penicillin allergy histories and in-person AI evaluation, penicillin allergy testing was safe and associated with significantly reduced broad-spectrum antibiotic use and increased first-line beta-lactam antibiotic use.
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Lee RU. Penicillin Allergy Delabeling Can Decrease Antibiotic Resistance, Reduce Costs, and Optimize Patient Outcomes. Fed Pract 2020; 37:460-465. [PMID: 33132684 DOI: 10.12788/fp.0040] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Background Antibiotics are one of the most frequently prescribed medications. Among all classes of antibiotics, penicillins are prescribed due to their clinical efficacy, cost-effectiveness, and general safety. Unfortunately, penicillins also are the most common drug allergy listed in patient medical records. Increasing evidence shows that > 90% of patients labeled with a penicillin allergy are not allergic to penicillins and associated β-lactams. The health care consequences of penicillin allergy in the setting of military medicine and readiness are important to consider. Observations In the US, 8 to 10% of the population and up to 15% of hospitalized patients have a documented penicillin allergy, limiting the use of these effective antibiotics. When treating a patient with a penicillin allergy, many clinicians avoid prescribing all β-lactam antibiotics and stay away from cephalosporins due to the concern for potential cross-reactivity. The cost of treating those with a documented penicillin allergy is greater than the cost for those who can receive penicillin, as treatment with broad-spectrum antibiotics often results in longer hospitalizations with increased rates of adverse effects (AEs). Despite preventive programs such as vaccinations, hygiene measures, and prophylactic antibiotics, military personnel are at increased risk for infections due to the military's mobile nature and crowded living situations. Conclusions Many patients report an allergy to penicillin, but only a small portion have a true immune-mediated allergy. Given the clinical, public health, and economic costs associated with a penicillin allergy label, evaluation and clearance of penicillin allergies improves clinical outcomes, decreases AEs from higher risk alternative broad-spectrum antibiotics, and prevents the spread of antibiotic resistance. In military personnel, penicillin delabeling improves readiness with optimal antibiotic options and avoidance of unnecessary risks, expediting return to full duty.
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Affiliation(s)
- Rachel U Lee
- is a Staff Allergist and Immunologist in the Division of Allergy, Department of Internal Medicine at the Naval Medical Center in San Diego, California
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The impact of antibiotic allergy labels on antibiotic exposure, clinical outcomes, and healthcare costs: A systematic review. Infect Control Hosp Epidemiol 2020; 42:530-548. [PMID: 33059777 DOI: 10.1017/ice.2020.1229] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
OBJECTIVE A growing body of evidence suggests that antibiotic allergy labels as documented in medical records are a risk factor for poor clinical outcomes. In this systematic review, we aimed to determine how antibiotic allergy labels influence 3 domains: antibiotic use and exposure, clinical outcomes, and healthcare-related costs. DESIGN We performed a systematic review to identify studies reporting outcomes in patients with antibiotic allergy labels compared to nonallergic counterparts. The search included PubMed, EMBASE, Cochrane CENTRAL, EBSCO, Cochrane Database of Abstracts of Reviews of Effects and Web of Science. Two reviewers independently screened studies for inclusion and abstracted data. Studies were graded using the Newcastle-Ottawa quality assessment scale. Study outcomes included antibiotic use, clinical outcomes, and economic outcomes. RESULTS In total, 41 studies met our criteria for inclusion. These studies varied in medical specialty, patient population, healthcare delivery system, and design, but most were conducted among adults age >18 years (85%) in the inpatient setting (82.5%). Among 34 studies examining antibiotic exposure, 32 (94%) found that patients with antibiotic allergy labels received more broad-spectrum antibiotics. Moreover, 31 studies examined clinical outcomes such as length of hospitalization, ICU admission, hospital readmission, multidrug-resistant or opportunistic infection, or mortality, and 27 (87%) found that allergy-labeled patients had at least 1 negative outcome. Of 9 studies examining healthcare costs, 7 (78%) found that allergy-labeled patients incurred significantly higher drug or hospital-related costs. CONCLUSIONS Antibiotic allergy labels have negative effects on antibiotic use, clinical outcomes, and economic outcomes in a variety of clinical settings and populations.
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Furness A, Kalicinsky C, Rosenfield L, Barber C, Poliquin V. Penicillin Skin Testing, Challenge, and Desensitization in Pregnancy: A Systematic Review. JOURNAL OF OBSTETRICS AND GYNAECOLOGY CANADA 2020; 42:1254-1261.e3. [DOI: 10.1016/j.jogc.2019.11.067] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 11/24/2019] [Accepted: 11/26/2019] [Indexed: 11/15/2022]
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Altered vaginal microbiome and relative co-abundance network in pregnant women with penicillin allergy. Allergy Asthma Clin Immunol 2020; 16:79. [PMID: 32944033 PMCID: PMC7491301 DOI: 10.1186/s13223-020-00475-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 08/27/2020] [Indexed: 12/31/2022] Open
Abstract
Background Penicillin allergy is frequently reported in adults and children. Recent studies suggest that microbiota plays a key role in the development and progression of allergy. In this study, the relationship between vaginal microbiome and pregnant women with penicillin allergy was investigated. Methods Vaginal samples before labor from 12 pregnant women with penicillin allergy and 15 non-allergic pregnant women were collected. Bacterial community structure of all study subjects and the discrepancies between the two groups were analyzed using 16S rRNA sequencing based on Illumina Hiseq 2500 platform. Results The abundant phyla among all participants were Firmicutes, Actinobacteria and Bacteroidetes. The predominant genus was Lactobacillus. Compared to non-allergic pregnant women, Actinobacteria, Coriobacteriaceae, Lachnospiraceae, Paraprevotella and Anoxybacillus significantly decreased, whereas Deltaproteobacteria, Peptostreptococcaceae, Enterococcus and Megamonas were more abundant in penicillin allergic women. Additionally, obvious discrepancies were observed in the co-abundance network at the genus level between the two groups. Conclusions There were differences in the microbial community structure and composition of reproduction tract between penicillin allergic and non-allergic pregnant women. These shifts may be related to maternal and neonatal health.
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Kuder MM, Lennox MG, Li M, Lang DM, Pien L. Skin testing and oral amoxicillin challenge in the outpatient allergy and clinical immunology clinic in pregnant women with penicillin allergy. Ann Allergy Asthma Immunol 2020; 125:646-651. [PMID: 32798617 DOI: 10.1016/j.anai.2020.08.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 07/30/2020] [Accepted: 08/07/2020] [Indexed: 01/01/2023]
Abstract
BACKGROUND Penicillin allergy is frequently reported. In pregnant women, reported penicillin allergy is associated with negative health outcomes and suboptimal group B streptococcal prophylaxis. For individuals having penicillin allergy, skin testing followed by an observed oral challenge is recommended. Previous data indicate a low risk of adverse reaction with skin testing in pregnant women, but the subsequent oral challenge was not routinely pursued. OBJECTIVE To determine whether skin testing followed by the outpatient oral challenge is tolerated by pregnant women. METHODS We conducted a retrospective review of all pregnant women who underwent penicillin allergy evaluation at an outpatient allergy and clinical immunology clinic. The patients underwent oral amoxicillin challenges based on the discretion of the allergy provider. We evaluated the index reaction history, skin test results, oral challenge results, and subsequent antibiotic exposure. RESULTS A total of 46 pregnant women underwent skin testing without adverse reactions, of whom 44 patients (95.6%) received negative results. A total of 18 women (39%) completed an oral challenge without adverse reactions. Patients challenged vs not challenged did not differ in patient age, gestational age, latency since index reaction, or reaction history risk level. Notably, 28 women received intrapartum antibiotics. There was no difference in intrapartum antibiotic administration between those who did or who did not complete an in-office oral challenge (P = .90). CONCLUSION Penicillin skin testing and oral challenge in pregnant women can safely be performed in the outpatient setting. There was no difference in the intrapartum antibiotic use between women who were and those who were not challenged. Further research is needed to determine the utility of oral challenge in pregnant patients.
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Affiliation(s)
- Margaret M Kuder
- Department of Allergy and Clinical Immunology, Respiratory Institute, Cleveland Clinic Foundation, Cleveland, Ohio.
| | - Maria G Lennox
- Department of Allergy and Clinical Immunology, Respiratory Institute, Cleveland Clinic Foundation, Cleveland, Ohio
| | - Manshi Li
- Department of Quantitative Health Sciences, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, Ohio
| | - David M Lang
- Department of Allergy and Clinical Immunology, Respiratory Institute, Cleveland Clinic Foundation, Cleveland, Ohio
| | - Lily Pien
- Department of Allergy and Clinical Immunology, Respiratory Institute, Cleveland Clinic Foundation, Cleveland, Ohio
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Abstract
PURPOSE OF REVIEW This review highlights the recent impacts of vaccines against the major bacterial causes of meningitis in children, and the challenges for further prevention of bacterial meningitis, with a focus on Streptococcus pneumoniae, Neisseria meningitidis and group B Streptococcus. RECENT FINDINGS Conjugate vaccines against S. pneumoniae and N. meningitidis have resulted in dramatic reductions in bacterial meningitis globally where they have been used. Recent licensure and use of capsular group B meningococcal protein vaccines have further reduced meningococcal meningitis in infants, young children and adolescents for countries with endemic disease and during outbreaks. SUMMARY Existing vaccines to prevent bacterial meningitis in children should be utilized in countries with significant numbers of cases of pneumococcal and/or meningococcal meningitis. Vaccines, which are able to protect against more than 13 serotypes of S. pneumoniae are in clinical trials and should be able to further reduce pneumococcal meningitis cases. Cost effective meningococcal vaccines against non-A capsular groups are needed for low-resource countries. There remains an urgent need for a vaccine against group B Streptococcus, which is a major cause of neonatal meningitis globally and for which no vaccine currently exists.
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Genovese C, D'Angeli F, Di Salvatore V, Tempera G, Nicolosi D. Streptococcus agalactiae in pregnant women: serotype and antimicrobial susceptibility patterns over five years in Eastern Sicily (Italy). Eur J Clin Microbiol Infect Dis 2020; 39:2387-2396. [PMID: 32700131 PMCID: PMC7669783 DOI: 10.1007/s10096-020-03992-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 07/15/2020] [Indexed: 12/14/2022]
Abstract
Streptococcus agalactiae (also known Group B Streptococcus or GBS) represents the main pathogen responsible for early- and late-onset infections in newborns. The present study aimed to determine the antimicrobial susceptibility pattern and the capsular serotypes of GBS isolated in Eastern Sicily over 5 years, from January 2015 to December 2019. A total of 3494 GBS were isolated from vaginal swabs of pregnant women (37–39 weeks), as recommended by the Centers for Disease Control and Prevention. Capsular polysaccharide’s typing of GBS was determined by a commercial latex agglutination test containing reagents to serotypes I–IX. The antimicrobial resistance pattern of GBS was determined through the disk diffusion method (Kirby-Bauer) and the double-disk diffusion test on Mueller-Hinton agar plates supplemented with 5% defibrinated sheep blood, according to the guidelines of the Clinical and Laboratory Standards Institute. Serotypes III (1218, 34.9%) and V (1069, 30.6%) were the prevalent colonizers, followed by not typable (570, 16.3%) and serotypes Ia (548, 15.7%), Ib (47, 1.3%), II (40, 1.1%), and IV (2, 0.1%). All 3494 clinical isolates were susceptible to cefditoren and vancomycin. Resistance to penicillin, ampicillin, levofloxacin, clindamycin, and erythromycin was observed in 6 (0.2%), 5 (0.1%), 161 (4.6%), 1090 (31.2%), and 1402 (40.1%) of the strains, respectively. Most of erythromycin-resistant GBS (1090/1402) showed the cMLSB phenotype, 276 the M phenotype, and 36 the iMLSB phenotype. Our findings revealed a higher prevalence of serotype III and a relevant resistance rate, among GBS strains, to the most frequently used antibiotics in antenatal screening.
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Affiliation(s)
- Carlo Genovese
- Department of Biomedical and Biotechnological Sciences, Section of Microbiology, University of Catania, Catania, 95123, Italy.,Nacture S.r.l, Spin-off University of Catania, Catania, 95123, Italy
| | - Floriana D'Angeli
- Department of Biomedical and Biotechnological Sciences, Section of Biochemistry, University of Catania, Catania, 95123, Italy. .,Department of Human Sciences and Quality of Life Promotion, San Raffaele Roma Open University, 00166, Rome, Italy.
| | - Valentina Di Salvatore
- Department of Biomedical and Biotechnological Sciences, Laboratory of Translational Oncology and Functional Genomics, Section of General and Clinical Pathology and Oncology, University of Catania, Catania, 95123, Italy
| | - Gianna Tempera
- Nacture S.r.l, Spin-off University of Catania, Catania, 95123, Italy
| | - Daria Nicolosi
- Department of Biomedical and Biotechnological Sciences, Section of Microbiology, University of Catania, Catania, 95123, Italy.,Nacture S.r.l, Spin-off University of Catania, Catania, 95123, Italy
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Lee RU, Banks TA, Waibel KH, Rodriguez RG. Penicillin Allergy…Maybe Not? The Military Relevance for Penicillin Testing and De-labeling. Mil Med 2020; 184:e163-e168. [PMID: 30137597 DOI: 10.1093/milmed/usy194] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 06/28/2018] [Accepted: 07/19/2018] [Indexed: 11/14/2022] Open
Abstract
INTRODUCTION Penicillin allergy is the most common drug allergy reported. About 8-10% of individuals in the USA have a documented penicillin allergy, yet 90% are not truly allergic to penicillin. A penicillin allergy "label" results in increased antibiotic-related adverse reactions and increased health care costs, thus impacting the overall "readiness" of the military. MATERIALS AND METHODS A review of the current literature and approaches to penicillin allergy and "de-labeling" a patient who reports penicillin allergy was conducted and future strategies to identify and assess military beneficiaries were outlined. Military allergists had a formal discussion at the Tri-service Military Allergy Immunology Assembly regarding the state of penicillin allergy testing in military allergy clinics. RESULTS A PubMed search yielded 5,775 results for "penicillin allergy" and 484 results for "penicillin allergy testing." There were two formalized penicillin testing programs in the military treatment facilities. In 2017, the military trained nearly 165,000 new recruits. If 5-10% reported a penicillin allergy and 90% were de-labeled, that would yield a $15-30 million cost savings annually. Further, de-labeling of the 9.4 million active duty, beneficiaries and retirees with a 90% success rate could result in even greater savings for the military health care system. CONCLUSION A penicillin allergy label is a risk to military readiness secondary to associated increases in the length of hospitalizations and emergency department and medical visits. Penicillin de-labeling is a simple intervention that can improve readiness, significantly decrease health care costs and prevent antibiotic resistance, as well as antibiotic-associated adverse events. The military allergist should be "front and center" providing expertise guidance and leadership for clinic and hospital-based penicillin de-labeling efforts which are nested within the antibiotic stewardship programs.
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Affiliation(s)
- Rachel U Lee
- Naval Medical Center San Diego, Division of Allergy/Immunology, NTC Branch Health Clinic, 2051 Cushing Rd. San Diego, CA
| | - Taylor A Banks
- Walter Reed National Military Medical Center, Division of Allergy/Immunology, 8901 Rockville Pike, Bethesda, MD
| | - Kirk H Waibel
- Landstuhl Regional Medical Center, Allergy Service, Division of Medicine, Dr. Hitzelberger Strasse, Landstuhl, Germany
| | - Rechell G Rodriguez
- Uniformed Services University of the Health Sciences, 4301 Jones Bridge Rd, Bethesda, MD
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Cook E, Ramirez M, Turrentine M. Time Has Come for Routine Penicillin Allergy Testing in Obstetrics. AJP Rep 2020; 10:e15-e19. [PMID: 32025345 PMCID: PMC7000251 DOI: 10.1055/s-0039-3401801] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Accepted: 10/15/2019] [Indexed: 01/17/2023] Open
Abstract
Objective This study evaluates penicillin allergy during pregnancy to estimate the proportion that could benefit from penicillin allergy testing. Study Design Retrospective cohort study of women with penicillin allergy that delivered from January 1, 2018 to December 31, 2018. Results Among 6,321 deliveries, 446 (7%) were identified with penicillin allergy. Nine percent (41/446) had no documentation of allergy severity. Allergies associated with intolerance, low, moderate, or high risk of anaphylaxis were reported in 6% (25/446), 40% (177/446), 32% (142/446), and 14% (61/446), respectively. Nearly 74% (330/446) received an antibiotic either antepartum, at delivery, or within 6 weeks of postpartum. The majority of women, 81% (360/446) (i.e., undocumented reactions, low, or moderate risk of anaphylaxis) would have been eligible for penicillin allergy testing. Greater appropriate utilization of antibiotics occurred in women with a high 80% (39/49) or moderate risk of anaphylaxis 70% (79/112) versus low risk of anaphylaxis 55% (64/117), history of intolerance 40% (8/20), or undocumented reaction 19% (6/32), p ≤ 0.01. Conclusion Most women who report a penicillin allergy during pregnancy would be candidates for penicillin allergy testing. With the high rate of antibiotic interventions in pregnant women who report a penicillin allergy, consideration should be given for penicillin allergy assessment.
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Affiliation(s)
- Elizabeth Cook
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas
| | - Mildred Ramirez
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas
| | - Mark Turrentine
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas
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Kleris RS, Lugar PL. Things We Do For No Reason™: Failing to Question a Penicillin Allergy History. J Hosp Med 2019; 14:704-706. [PMID: 30897049 PMCID: PMC6827537 DOI: 10.12788/jhm.3170] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 12/21/2018] [Accepted: 01/19/2019] [Indexed: 01/24/2023]
Abstract
Inspired by the ABIM Foundation's Choosing Wisely® campaign, the "Things We Do for No Reason™" (TWDFNR) series reviews practices that have become common parts of hospital care but may provide little value to our patients. Practices reviewed in the TWDFNR series do not represent "black and white" conclusions or clinical practice standards but are meant as a starting place for research and active discussions among hospitalists and patients. We invite you to be part of that discussion.
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Affiliation(s)
- Renee S Kleris
- Department of Pediatrics, Duke University Medical Center. Durham, North Carolina
| | - Patricia L Lugar
- Department of Pediatrics, Duke University Medical Center. Durham, North Carolina
- Department of Medicine, Duke University Medical Center, Durham, North Carolina
- Corresponding Author: Patricia Lugar, MD, MS; E-mail: ; Telephone: 919-684-6122
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Electronic Consultations in Allergy/Immunology. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2019; 7:2594-2602. [DOI: 10.1016/j.jaip.2019.05.039] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 05/08/2019] [Accepted: 05/18/2019] [Indexed: 11/20/2022]
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Huang KHG, Cluzet V, Hamilton K, Fadugba O. The Impact of Reported Beta-Lactam Allergy in Hospitalized Patients With Hematologic Malignancies Requiring Antibiotics. Clin Infect Dis 2019; 67:27-33. [PMID: 29346543 DOI: 10.1093/cid/ciy037] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 01/15/2018] [Indexed: 02/07/2023] Open
Abstract
Background Patients hospitalized with hematologic malignancy are particularly vulnerable to infection. The impact of reported beta-lactam (BL) allergy in this population remains unknown. Methods This was a retrospective cohort study of adult inpatients with hematologic malignancy admitted at 2 tertiary care hospitals from 2010 through 2015. The primary outcome was hospital length of stay (LOS) after administration of the first antibiotic. Secondary outcomes included readmission, mortality, complications, hospital charges, and antibiotic usage. Our goal was to define the impact of BL-only allergy (BLOA) label on clinical outcomes compared to those with no BL allergy (NBLA) in hematologic malignancy inpatients who required systemic antibiotics. Results In our cohort (n = 4671), 38.3% had leukemia, 4.9% had Hodgkin lymphoma, 36.1% had non-Hodgkin lymphoma, and 20.7% had multiple myeloma. Among patients, 35.1% reported antibiotic allergy, and 14.1% (n = 660) had BLOA (including 9.3% with penicillin-only allergy and 3.3% cephalosporin-only allergy). Patients with BLOA had longer median LOS compared to patients with NBLA (11.3 vs 7.6 days, P < .001), which remained significant after multivariable adjustment. Patients with BLOA also had significantly worse outcomes in terms of mortality rate at 30 days (7.6% vs 5.3%, P = .017) and 180 days (15.8% vs 12.2%, P = .013), 30-day readmission rate, Clostridium difficile rate, hospital charges ($223 046 vs $173 256, P < .001), antibiotic classes used, and antibiotic duration. Conclusions In hospitalized patients with hematologic malignancy, patients with reported BL allergy had worse clinical outcomes and higher healthcare cost than those without BL allergy label.
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Affiliation(s)
- Kuan-Hsiang Gary Huang
- Section of Allergy and Immunology, Division of Pulmonary, Allergy and Critical Care, Hospital of the University of Pennsylvania, Philadelphia.,Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Albert Einstein Medical Center, Philadelphia
| | - Valerie Cluzet
- Division of Infectious Diseases, Hospital of the University of Pennsylvania, Philadelphia
| | - Keith Hamilton
- Division of Infectious Diseases, Hospital of the University of Pennsylvania, Philadelphia
| | - Olajumoke Fadugba
- Section of Allergy and Immunology, Division of Pulmonary, Allergy and Critical Care, Hospital of the University of Pennsylvania, Philadelphia
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Chiriac AM, Macy E. Large Health System Databases and Drug Hypersensitivity. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2019; 7:2125-2131. [DOI: 10.1016/j.jaip.2019.04.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 04/09/2019] [Accepted: 04/09/2019] [Indexed: 12/26/2022]
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Thellier C, Subtil D, Pelletier de Chambure D, Grandbastien B, Catteau C, Beaugendre A, Poitrenaud D, Prevotat A, Richart P, Faure K, Le Guern R. An educational intervention about the classification of penicillin allergies: effect on the appropriate choice of antibiotic therapy in pregnant women. Int J Obstet Anesth 2019; 41:22-28. [PMID: 31402310 DOI: 10.1016/j.ijoa.2019.07.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 07/01/2019] [Accepted: 07/15/2019] [Indexed: 10/26/2022]
Abstract
BACKGROUND Most pregnant women who self-report penicillin allergy are not truly penicillin-allergic and this misunderstanding often leads to administration of inappropriate antibiotic therapy. Decision algorithms have been developed to guide antibiotic selection but major discrepancies have been reported between guidelines and clinical practice. We aimed to optimize the prescription of antibiotics for pregnant women who self-reported penicillin allergy, using an educational intervention about the classification of penicillin allergies that targeted gynecologists, anesthesiologists and midwives. METHODS This quasi-experimental study assessed the effect of an educational intervention about the classification of penicillin allergy. For six months, a combination of two strategies was used, namely dissemination of printed educational materials and group education. The principal study endpoint was the appropriateness of the antibiotic therapy, defined in advance for each level of allergic risk. RESULTS The pre-intervention phase included 903 women; one year after its conclusion, the post-intervention phase began and included 892 women. The prevalence of self-reported penicillin allergy was stable over the two periods (6.8% before vs 5.4% after, P=0.24). The clinical classification of penicillin allergies was more often used after the educational intervention (68% vs 100%, P<0.001). The appropriateness of the antibiotic therapy prescribed to self-reported penicillin allergic-women increased significantly between the two periods, from 5/29 (17.2%) to 18/27 (66.7%, P<0.001). CONCLUSION An educational intervention about penicillin allergy classification was associated with an improvement in the choice of appropriate antibiotic therapy among women who had reported penicillin allergy.
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Affiliation(s)
- C Thellier
- Université de Lille, CHU Lille, Hôpital Jeanne de Flandre, Pôle Femme Mère Nouveau-né, F-59000 Lille, France
| | - D Subtil
- Université de Lille, CHU Lille, Hôpital Jeanne de Flandre, Pôle Femme Mère Nouveau-né, F-59000 Lille, France; Université de Lille, EA 2694 Santé Publique, Epidémiologie et Qualité des Soins, F-59000 Lille France
| | | | - B Grandbastien
- Université de Lille, EA 2694 Santé Publique, Epidémiologie et Qualité des Soins, F-59000 Lille France; Université de Lille, CHU Lille, Service de Gestion du Risque Infectieux et des Vigilances, F-59000 Lille, France
| | - C Catteau
- Université de Lille, CHU Lille, Hôpital Jeanne de Flandre, Pôle Femme Mère Nouveau-né, F-59000 Lille, France
| | - A Beaugendre
- Université de Lille, CHU Lille, Hôpital Jeanne de Flandre, Pôle Femme Mère Nouveau-né, F-59000 Lille, France
| | - D Poitrenaud
- Université de Lille, CHU Lille, Service de Maladies Infectieuses, F-59000 Lille France
| | - A Prevotat
- Université de Lille, CHU Lille, Pneumo-allergologie Hôpital Calmette, F-59000 Lille, France
| | - P Richart
- Université de Lille, CHU Lille, Pôle d'Anesthésie-Réanimation, F-59000 Lille, France
| | - K Faure
- Université de Lille, CHU Lille, Service de Maladies Infectieuses, F-59000 Lille France; Université de Lille, EA 7366, Recherche translationnelle, relations hôte-pathogènes, F-59000 Lille, France
| | - R Le Guern
- Université de Lille, EA 7366, Recherche translationnelle, relations hôte-pathogènes, F-59000 Lille, France; Université de Lille, CHU Lille, Laboratoire de Bactériologie-Hygiène, Institut de Microbiologie, F-59000 Lille, France.
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Prevention of Group B Streptococcal Early-Onset Disease in Newborns: ACOG Committee Opinion, Number 782. Obstet Gynecol 2019; 134:1. [PMID: 31241599 DOI: 10.1097/aog.0000000000003334] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Group B streptococcus (GBS) is the leading cause of newborn infection. The primary risk factor for neonatal GBS early-onset disease (EOD) is maternal colonization of the genitourinary and gastrointestinal tracts. Approximately 50% of women who are colonized with GBS will transmit the bacteria to their newborns. Vertical transmission usually occurs during labor or after rupture of membranes. In the absence of intrapartum antibiotic prophylaxis, 1-2% of those newborns will develop GBS EOD. Other risk factors include gestational age of less than 37 weeks, very low birth weight, prolonged rupture of membranes, intraamniotic infection, young maternal age, and maternal black race. The key obstetric measures necessary for effective prevention of GBS EOD continue to include universal prenatal screening by vaginal-rectal culture, correct specimen collection and processing, appropriate implementation of intrapartum antibiotic prophylaxis, and coordination with pediatric care providers. The American College of Obstetricians and Gynecologists now recommends performing universal GBS screening between 36 0/7 and 37 6/7 weeks of gestation. All women whose vaginal-rectal cultures at 36 0/7-37 6/7 weeks of gestation are positive for GBS should receive appropriate intrapartum antibiotic prophylaxis unless a prelabor cesarean birth is performed in the setting of intact membranes. Although a shorter duration of recommended intrapartum antibiotics is less effective than 4 or more hours of prophylaxis, 2 hours of antibiotic exposure has been shown to reduce GBS vaginal colony counts and decrease the frequency of a clinical neonatal sepsis diagnosis. Obstetric interventions, when necessary, should not be delayed solely to provide 4 hours of antibiotic administration before birth. This Committee Opinion, including , , and , updates and replaces the obstetric components of the CDC 2010 guidelines, "Prevention of Perinatal Group B Streptococcal Disease: Revised Guidelines From CDC, 2010."
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Abstract
IMPORTANCE β-Lactam antibiotics are among the safest and most effective antibiotics. Many patients report allergies to these drugs that limit their use, resulting in the use of broad-spectrum antibiotics that increase the risk for antimicrobial resistance and adverse events. OBSERVATIONS Approximately 10% of the US population has reported allergies to the β-lactam agent penicillin, with higher rates reported by older and hospitalized patients. Although many patients report that they are allergic to penicillin, clinically significant IgE-mediated or T lymphocyte-mediated penicillin hypersensitivity is uncommon (<5%). Currently, the rate of IgE-mediated penicillin allergies is decreasing, potentially due to a decreased use of parenteral penicillins, and because severe anaphylactic reactions to oral amoxicillin are rare. IgE-mediated penicillin allergy wanes over time, with 80% of patients becoming tolerant after a decade. Cross-reactivity between penicillin and cephalosporin drugs occurs in about 2% of cases, less than the 8% reported previously. Some patients have a medical history that suggests they are at a low risk for developing an allergic reaction to penicillin. Low-risk histories include patients having isolated nonallergic symptoms, such as gastrointestinal symptoms, or patients solely with a family history of a penicillin allergy, symptoms of pruritus without rash, or remote (>10 years) unknown reactions without features suggestive of an IgE-mediated reaction. A moderate-risk history includes urticaria or other pruritic rashes and reactions with features of IgE-mediated reactions. A high-risk history includes patients who have had anaphylaxis, positive penicillin skin testing, recurrent penicillin reactions, or hypersensitivities to multiple β-lactam antibiotics. The goals of antimicrobial stewardship are undermined when reported allergy to penicillin leads to the use of broad-spectrum antibiotics that increase the risk for antimicrobial resistance, including increased risk of methicillin-resistant Staphylococcus aureus and vancomycin-resistant Enterococcus. Broad-spectrum antimicrobial agents also increase the risk of developing Clostridium difficile (also known as Clostridioides difficile) infection. Direct amoxicillin challenge is appropriate for patients with low-risk allergy histories. Moderate-risk patients can be evaluated with penicillin skin testing, which carries a negative predictive value that exceeds 95% and approaches 100% when combined with amoxicillin challenge. Clinicians performing penicillin allergy evaluation need to identify what methods are supported by their available resources. CONCLUSIONS AND RELEVANCE Many patients report they are allergic to penicillin but few have clinically significant reactions. Evaluation of penicillin allergy before deciding not to use penicillin or other β-lactam antibiotics is an important tool for antimicrobial stewardship.
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Affiliation(s)
- Erica S Shenoy
- Harvard Medical School, Boston, Massachusetts
- Infection Control Unit, Massachusetts General Hospital, Boston
- Division of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston
| | - Eric Macy
- Department of Allergy, Southern California Permanente Medical Group, San Diego Medical Center
| | - Theresa Rowe
- General Internal Medicine and Geriatrics, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Kimberly G Blumenthal
- Harvard Medical School, Boston, Massachusetts
- Division of Rheumatology, Allergy and Immunology, Department of Medicine, Massachusetts General Hospital, Boston
- Edward P. Lawrence Center for Quality and Safety, Massachusetts General Hospital, Boston
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Otaguiri ES, Morguette AEB, Morey AT, Tavares ER, Kerbauy G, de Almeida Torres RSL, Chaves Júnior M, Tognim MCB, Góes VM, Krieger MA, Perugini MRE, Yamauchi LM, Yamada-Ogatta SF. Development of a melting-curve based multiplex real-time PCR assay for simultaneous detection of Streptococcus agalactiae and genes encoding resistance to macrolides and lincosamides. BMC Pregnancy Childbirth 2018; 18:126. [PMID: 29724169 PMCID: PMC5934892 DOI: 10.1186/s12884-018-1774-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Accepted: 04/25/2018] [Indexed: 01/25/2023] Open
Abstract
Background Streptococcus agalactiae or Group B Streptococcus (GBS) remains the leading cause of infections in newborns worldwilde. Prenatal GBS screening of pregnant women for vaginal-rectal colonization is recommended in many countries to manage appropriate intrapartum antimicrobial prophylaxis for those identified as carriers. In this study, a novel melting-curve based multiplex real-time PCR assay for the simultaneous detection of GBS and macrolide and lincosamide resistance markers was developed. The usefulness of the assay was evaluated for rapid and accurate prenatal GBS screening. Methods One hundred two pregnant women who were at 35–37 weeks of gestation were enrolled in this study. The analytical performance of the multiplex real-time PCR was first tested using a panel of reference and clinical bacterial and fungal strains. To test the clinical performance, vaginal-rectal swabs were obtained from pregnant women who were seen at the teaching hospital for regular prenatal care. The results of real-time were compared with those obtained from microbiological analyses. Results The real-time PCR assay showed 100% specificity and a limit of detection of 104 colony forming units equivalent per reaction. The prevalence of GBS colonization among the population studied was 15.7% (16/102) based on a positive culture and the real-time PCR results. Agreement between the two assays was found for 11 (68.75%) GBS colonized women. Using the culture-based results as a reference, the multiplex real-time PCR had a sensitivity of 91.7% (11/12, CI 59.7–99.6%), a specificity of 95.5% (86/90, CI 89.8–98.7%), a positive predictive value of 73.3% (11/15, CI 44.8–91.1%) and a negative predictive value of 98.9% (86/87, CI 92.9–99.9%). Conclusion The multiplex real-time PCR is a rapid, affordable and sensitive assay for direct detection of GBS in vaginal-rectal swabs. Electronic supplementary material The online version of this article (10.1186/s12884-018-1774-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Eliane Saori Otaguiri
- Departamento de Microbiologia, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
| | - Ana Elisa Belotto Morguette
- Departamento de Microbiologia, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
| | - Alexandre Tadachi Morey
- Departamento de Microbiologia, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
| | - Eliandro Reis Tavares
- Departamento de Microbiologia, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
| | - Gilselena Kerbauy
- Departamento de Enfermagem, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
| | - Rosângela S L de Almeida Torres
- Laboratory of Bacteriology, Epidemiology Laboratory and Disease Control Division, Laboratório Central do Estado do Paraná - LACEN, Curitiba, PR, Brazil
| | - Mauricio Chaves Júnior
- Departamento de Medicina, Hospital Universitário de Maringá, Universidade Estadual de Maringá, Maringá, Brazil
| | | | | | | | - Marcia Regina Eches Perugini
- Departamento de Patologia, Análises Clínicas e Toxicológicas, Centro de Ciências da Saúde, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
| | - Lucy Megumi Yamauchi
- Departamento de Microbiologia, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
| | - Sueli Fumie Yamada-Ogatta
- Departamento de Microbiologia, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Paraná, Brazil. .,Departamento de Microbiologia, Universidade Estadual de Londrina, Centro de Ciências Biológicas, Rodovia Celso Garcia Cid, PR 445, km 380. CEP, Londrina, 86057-970, Brazil.
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Petry CJ, Ong KK, Hughes IA, Acerini CL, Dunger DB. Associations between bacterial infections and blood pressure in pregnancy. Pregnancy Hypertens 2017; 10:202-206. [PMID: 29153680 PMCID: PMC5710763 DOI: 10.1016/j.preghy.2017.09.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Revised: 08/29/2017] [Accepted: 09/10/2017] [Indexed: 01/06/2023]
Abstract
Antibiotic use in pregnancy was associated with a 2–3 mmHg rise in blood pressure. It was related more to changes in diastolic than systolic blood pressure. The most likely cause is exposure to bacterial infections.
Objectives To test the hypothesis that bacterial infections in pregnancy are related to maternal blood pressure. Study design Bacterial infection was assessed using antibiotic usage as a surrogate and its association with blood pressure in pregnancy tested in the Cambridge Baby Growth Study. Main outcome measures Antibiotic usage in pregnancy was self-reported in questionnaires. Blood pressure measurements at four time points in pregnancy were collected from the hospital notes of 622 women. Results Using all the available blood pressure readings (adjusted for weeks gestation) antibiotic usage was associated with a higher mean arterial blood pressure across pregnancy: antibiotics used 85 (84, 87) mmHg vs. no antibiotics used 83 (83, 84) mmHg (β = 2.3 (0.6, 4.0) mmHg, p = 9.6 × 10−3, from 621 individuals). Further analysis revealed that antibiotic usage was associated with diastolic (β = 2.3 (0.6, 4.0) mmHg; p = 7.0 × 10−3) more than systolic blood pressure (β = 1.4 (−0.9, 3.7) mmHg; p = 0.2). The effect size associated with antibiotic usage appeared to rise slightly after the first trimester. Conclusions Bacterial infection in pregnancy, as assessed by self-reported antibiotic usage, is associated with small rises in blood pressure.
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Affiliation(s)
- Clive J Petry
- Department of Paediatrics, University of Cambridge, Cambridge, UK.
| | - Ken K Ong
- Department of Paediatrics, University of Cambridge, Cambridge, UK; Medical Research Council Epidemiology Unit, University of Cambridge, Cambridge, UK
| | - Ieuan A Hughes
- Department of Paediatrics, University of Cambridge, Cambridge, UK
| | - Carlo L Acerini
- Department of Paediatrics, University of Cambridge, Cambridge, UK
| | - David B Dunger
- Department of Paediatrics, University of Cambridge, Cambridge, UK; The Institute of Metabolic Science, University of Cambridge, Cambridge, UK
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