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Drug-associated vasculitis occurring after treatment with pembrolizumab
Tolaymat, Omar , Pinkston, Olga, Schenk, William B., Mergo, Patricia J. , Berianu, Florentina , Wang, Benjamin X. , Joseph, Richard W.

Rheumatology | February 18, 2019 | Volume: 58 | Issue: 8 | Pages: 1501-1503

10.1093/rheumatology/kez051 | PMID 30892627 Get It

Year in Review in Cardiac Electrophysiology
Hussein, Ayman A. , Madhavan, Malini , Viswanathan, Mohan , Ceresnak, Scott R. , Park, David , Wang, Paul J. , Park, David S , Tzou, Wendy S. , Steinberg, Benjamin A. , Davis, Darryl Raymond , Kapa, Suraj

Circulation: Arrhythmia and Electrophysiology | February 12, 2019 | Volume: 12 | Issue: 2 | Pages: No page available

10.1161/circep.118.007142 | PMID 30744401 Get It

A Systematic Review of Noninvasive Electrocardiogram Monitoring Devices for the Evaluation of Suspected Cardiovascular Syncope
Trombetta, Lucia, Erba, Luca , Bozzano, Viviana , Barbic, Franca , Casazza, Giovanni , Dipaola, Franca , Furlan, Raffaello , Kenny, Rose Anne , Quinn, James , Sheldon, Robert S. , Shen, Win-Kuang, Sun, Benjamin , Thiruganasambandamoorthy, Venkatesh , Reed, Matthew J. , Solbiati, Monica , Sacco, Roberto M., Costantino, Giorgio , Raj, Satish R , Thiruganasambandamoorthy, Venkatesh , Kenny, Rose Anne , Dipaola, Franca , Furlan, Raffaello

Journal of Medical Devices | February 8, 2019 | Volume: 13 | Issue: 2 | Pages: No page available

10.1115/1.4042795 Get It

The aims of this study were (1) to identify research publications studying noninvasive electrocardiogram (ECG) monitoring devices, (2) to define and categorize current technology in noninvasive ECG recording, and (3) to discuss desirable noninvasive recording features for personalized syncope evaluation to guide technological advancement and future studies. We performed a systematic review of the literature that assessed noninvasive ECG-monitoring devices, regardless of the reason for monitoring. We performed an Internet search and corresponded with syncope experts and companies to help identify further eligible products. We extracted information about included studies and device features. We found 173 relevant papers. The main reasons for ECG monitoring were atrial fibrillation (n = 45), coronary artery disease (n = 10), syncope (n = 8), palpitations (n = 8), other cardiac diseases (n = 67), and technological aspects of monitoring (n = 35). We identified 198 devices: 5 hospital telemetry devices, 12 patches, 46 event recorders, 70 Holter monitors, 23 external loop recorders, 20 mobile cardiac outpatient telemetries, and 22 multifunctional devices. The features of each device were very heterogeneous. There are a large number of ECG-monitoring devices with different features available in the market. Our findings may help clinicians select the appropriate device for their patients. Since there are only a few published articles analyzing their usefulness in syncope patients, further research might improve their use in this clinical setting.
Association of Apolipoprotein E With Intracerebral Hemorrhage Risk by Race/Ethnicity
Marini, Sandro, Crawford, Katherine, Morotti, Andrea, Lee, Myung J., Pezzini, Alessandro, Moomaw, Charles J., Flaherty, Matthew L., Montaner, Joan, Roquer, Jaume, Jimenez-Conde, Jordi, Giralt-Steinhauer, Eva, Elosua, Roberto, Cuadrado-Godia, Elisa, Soriano-Tarraga, Carolina, Slowik, Agnieszka, Jagiella, Jeremiasz M., Pera, Joanna, Urbanik, Andrzej, Pichler, Alexander, Hansen, Björn M., McCauley, Jacob L., Tirschwell, David L., Selim, Magdy, Brown, Devin L., Silliman, Scott L., Worrall, Bradford B., Meschia, James F., Kidwell, Chelsea S., Testai, Fernando D., Kittner, Steven J., Schmidt, Helena, Enzinger, Christian, Deary, Ian J., Rannikmae, Kristiina, Samarasekera, Neshika, Salman, Rustam Al-Shahi, Sudlow, Catherine L., Klijn, Catharina J. M., Nieuwenhuizen, Koen M. van, Fernandez-Cadenas, Israel, Delgado, Pilar, Norrving, Bo, Lindgren, Arne, Goldstein, Joshua N., Viswanathan, Anand, Greenberg, Steven M., Falcone, Guido J., Biffi, Alessandro, Langefeld, Carl D., Woo, Daniel, Rosand, Jonathan, Anderson, Christopher D., Hardy, John , Benjamin, Emelia J. , Montaner, Joan , Rotter, Jerome I. , Seshadri, Sudha , Anderson, Christopher D. , Lubitz, Steven A. , Sudlow, Cathie , Rannikmäe, Kristiina , James, Michael L. , Testai, Fernando D. , Maguire, Jane , Brown, Devin L. , Tirschwell, David , Hansen, Björn M. , Elosúa, Roberto , Cuadrado‐Godia, Elisa , Soriano‐Tárraga, Carolina , Nieuwenhuizen, Koen M. van , Klijn, Catharina J.M. , Samarasekera, Neshika , Salman, Rustam Al‐Shahi , Pezzini, Alessandro , Delgado, Pilar , Lee, Chaeyoung , McCauley, Jacob L. , Marini, Sandro , Chen, Christopher , Bersano, Anna , van Nieuwenhuizen, Koen M , Seshadri, Sudha , Hardy, John , Montaner, Joan , Benjamin, Emelia J , Lubitz, Steven A , Rotter, Jerome I , Pezzini, Alessandro , Crawford, Katherine, Morotti, Andrea, Lee, Myung J., Moomaw, Charles J., Flaherty, Matthew L., Roquer, Jaume, Jimenez-Conde, Jordi, Giralt-Steinhauer, Eva, Slowik, Agnieszka, Jagiella, Jeremiasz M., Pera, Joanna, Urbanik, Andrzej, Pichler, Alexander, Hansen, Björn M., Selim, Magdy, Brown, Devin L., Silliman, Scott L., Worrall, Bradford B., Meschia, James F., Kidwell, Chelsea S., Kittner, Steven J., Schmidt, Helena, Enzinger, Christian, Deary, Ian J., Salman, Rustam Al-Shahi, Fernandez-Cadenas, Israel, Delgado, Pilar, Norrving, Bo, Lindgren, Arne, Goldstein, Joshua N., Viswanathan, Anand, Greenberg, Steven M., Falcone, Guido J., Biffi, Alessandro, Langefeld, Carl D., Woo, Daniel, Rosand, Jonathan, Anderson, Christopher D., Al-Shahi Salman, Rustam , Bersano, Anna , Testai, Fernando D , McCauley, Jacob L

JAMA Neurology | February 6, 2019 | Volume: 76 | Issue: 4 | Pages: 480

10.1001/jamaneurol.2018.4519 | PMID 30726504 Get It

Clinical Practice Guideline: Tonsillectomy in Children (Update)
Mitchell, Ron B. , Archer, Sanford M., Coles, Sarah , Finestone, Sandra A., Giordano, Terri , Hildrew, Douglas M. , Lloyd, Robin M. , Parikh, Sanjay R., Shulman, Stanford T., Walner, David L. , Walsh, Sandra A. , Nnacheta, Lorraine C., Ishman, Stacey L. , Rosenfeld, Richard M. , Friedman, Norman R. , Kim, Tae Won Benjamin

Otolaryngology–Head and Neck Surgery | February 5, 2019 | Volume: 160 | Issue: S1 | Pages: No page available

10.1177/0194599818801757 | PMID 30798778 Get It

Objective This update of a 2011 guideline developed by the American Academy of Otolaryngology–Head and Neck Surgery Foundation provides evidence‐based recommendations on the pre‐, intra‐, and postoperative care and management of children 1 to 18 years of age under consideration for tonsillectomy. Tonsillectomy is defined as a surgical procedure performed with or without adenoidectomy that completely removes the tonsil, including its capsule, by dissecting the peritonsillar space between the tonsil capsule and the muscular wall. Tonsillectomy is one of the most common surgical procedures in the United States, with 289,000 ambulatory procedures performed annually in children <15 years of age based on the most recent published data. This guideline is intended for all clinicians in any setting who interact with children who may be candidates for tonsillectomy. Purpose The purpose of this multidisciplinary guideline is to identify quality improvement opportunities in managing children under consideration for tonsillectomy and to create explicit and actionable recommendations to implement these opportunities in clinical practice. Specifically, the goals are to educate clinicians, patients, and/or caregivers regarding the indications for tonsillectomy and the natural history of recurrent throat infections. Additional goals include the following: optimizing the perioperative management of children undergoing tonsillectomy, emphasizing the need for evaluation and intervention in special populations, improving the counseling and education of families who are considering tonsillectomy for their children, highlighting the management options for patients with modifying factors, and reducing inappropriate or unnecessary variations in care. Children aged 1 to 18 years under consideration for tonsillectomy are the target patient for the guideline. For this guideline update, the American Academy of Otolaryngology–Head and Neck Surgery Foundation selected a panel representing the fields of nursing, anesthesiology, consumers, family medicine, infectious disease, otolaryngology–head and neck surgery, pediatrics, and sleep medicine. Key Action Statements The guideline update group made strong recommendations for the following key action statements (KASs): (1) Clinicians should recommend watchful waiting for recurrent throat infection if there have been <7 episodes in the past year, <5 episodes per year in the past 2 years, or <3 episodes per year in the past 3 years. (2) Clinicians should administer a single intraoperative dose of intravenous dexamethasone to children undergoing tonsillectomy. (3) Clinicians should recommend ibuprofen, acetaminophen, or both for pain control after tonsillectomy. The guideline update group made recommendations for the following KASs: (1) Clinicians should assess the child with recurrent throat infection who does not meet criteria in KAS 2 for modifying factors that may nonetheless favor tonsillectomy, which may include but are not limited to multiple antibiotic allergies/intolerance, PFAPA (periodic fever, aphthous stomatitis, pharyngitis, and adenitis), or history of >1 peritonsillar abscess. (2) Clinicians should ask caregivers of children with obstructive sleep‐disordered breathing and tonsillar hypertrophy about comorbid conditions that may improve after tonsillectomy, including growth retardation, poor school performance, enuresis, asthma, and behavioral problems. (3) Before performing tonsillectomy, the clinician should refer children with obstructive sleep‐disordered breathing for polysomnography if they are <2 years of age or if they exhibit any of the following: obesity, Down syndrome, craniofacial abnormalities, neuromuscular disorders, sickle cell disease, or mucopolysaccharidoses. (4) The clinician should advocate for polysomnography prior to tonsillectomy for obstructive sleep‐disordered breathing in children without any of the comorbidities listed in KAS 5 for whom the need for tonsillectomy is uncertain or when there is discordance between the physical examination and the reported severity of oSDB. (5) Clinicians should recommend tonsillectomy for children with obstructive sleep apnea documented by overnight polysomnography. (6) Clinicians should counsel patients and caregivers and explain that obstructive sleep‐disordered breathing may persist or recur after tonsillectomy and may require further management. (7) The clinician should counsel patients and caregivers regarding the importance of managing posttonsillectomy pain as part of the perioperative education process and should reinforce this counseling at the time of surgery with reminders about the need to anticipate, reassess, and adequately treat pain after surgery. (8) Clinicians should arrange for overnight, inpatient monitoring of children after tonsillectomy if they are <3 years old or have severe obstructive sleep apnea (apnea‐hypopnea index ≥10 obstructive events/hour, oxygen saturation nadir <80%, or both). (9) Clinicians should follow up with patients and/or caregivers after tonsillectomy and document in the medical record the presence or absence of bleeding within 24 hours of surgery (primary bleeding) and bleeding occurring later than 24 hours after surgery (secondary bleeding). (10) Clinicians should determine their rate of primary and secondary posttonsillectomy bleeding at least annually. The guideline update group made a strong recommendation against 2 actions: (1) Clinicians should not administer or prescribe perioperative antibiotics to children undergoing tonsillectomy. (2) Clinicians must not administer or prescribe codeine, or any medication containing codeine, after tonsillectomy in children younger than 12 years. The policy level for the recommendation about documenting recurrent throat infection was an option: (1) Clinicians may recommend tonsillectomy for recurrent throat infection with a frequency of at least 7 episodes in the past year, at least 5 episodes per year for 2 years, or at least 3 episodes per year for 3 years with documentation in the medical record for each episode of sore throat and ≥1 of the following: temperature >38.3°C (101°F), cervical adenopathy, tonsillar exudate, or positive test for group A beta‐hemolytic streptococcus. Differences from Prior Guideline (1) Incorporating new evidence profiles to include the role of patient preferences, confidence in the evidence, differences of opinion, quality improvement opportunities, and any exclusion to which the action statement does not apply. (2) There were 1 new clinical practice guideline, 26 new systematic reviews, and 13 new randomized controlled trials included in the current guideline update. (3) Inclusion of 2 consumer advocates on the guideline update group. (4) Changes to 5 KASs from the original guideline: KAS 1 (Watchful waiting for recurrent throat infection), KAS 3 (Tonsillectomy for recurrent infection with modifying factors), KAS 4 (Tonsillectomy for obstructive sleep‐disordered breathing), KAS 9 (Perioperative pain counseling), and KAS 10 (Perioperative antibiotics). (5) Seven new KASs: KAS 5 (Indications for polysomnography), KAS 6 (Additional recommendations for polysomnography), KAS 7 (Tonsillectomy for obstructive sleep apnea), KAS 12 (Inpatient monitoring for children after tonsillectomy), KAS 13 (Postoperative ibuprofen and acetaminophen), KAS 14 (Postoperative codeine), and KAS 15a (Outcome assessment for bleeding). (6) Addition of an algorithm outlining KASs. (7) Enhanced emphasis on patient and/or caregiver education and shared decision making.
Clinical Practice Guideline: Tonsillectomy in Children (Update)—Executive Summary
Mitchell, Ron B. , Archer, Sanford M., Coles, Sarah , Finestone, Sandra A., Giordano, Terri , Hildrew, Douglas M. , Lloyd, Robin M. , Parikh, Sanjay R., Shulman, Stanford T., Walner, David L. , Walsh, Sandra A. , Nnacheta, Lorraine C., Ishman, Stacey L. , Rosenfeld, Richard M. , Friedman, Norman R. , Kim, Tae Won Benjamin

Otolaryngology–Head and Neck Surgery | February 5, 2019 | Volume: 160 | Issue: 2 | Pages: 187-205

10.1177/0194599818807917 | PMID 30921525 Get It

Objective This update of a 2011 guideline developed by the American Academy of Otolaryngology–Head and Neck Surgery Foundation provides evidence‐based recommendations on the pre‐, intra‐, and postoperative care and management of children 1 to 18 years of age under consideration for tonsillectomy. Tonsillectomy is defined as a surgical procedure performed with or without adenoidectomy that completely removes the tonsil, including its capsule, by dissecting the peritonsillar space between the tonsil capsule and the muscular wall. Tonsillectomy is one of the most common surgical procedures in the United States, with 289,000 ambulatory procedures performed annually in children <15 years of age, based on the most recent published data. This guideline is intended for all clinicians in any setting who interact with children who may be candidates for tonsillectomy. Purpose The purpose of this multidisciplinary guideline is to identify quality improvement opportunities in managing children under consideration for tonsillectomy and to create explicit and actionable recommendations to implement these opportunities in clinical practice. Specifically, the goals are to educate clinicians, patients, and/or caregivers regarding the indications for tonsillectomy and the natural history of recurrent throat infections. Additional goals include the following: optimizing the perioperative management of children undergoing tonsillectomy, emphasizing the need for evaluation and intervention in special populations, improving the counseling and education of families who are considering tonsillectomy for their children, highlighting the management options for patients with modifying factors, and reducing inappropriate or unnecessary variations in care. Children aged 1 to 18 years under consideration for tonsillectomy are the target patient for the guideline. For this guideline update, the American Academy of Otolaryngology–Head and Neck Surgery Foundation selected a panel representing the fields of nursing, anesthesiology, consumers, family medicine, infectious disease, otolaryngology–head and neck surgery, pediatrics, and sleep medicine. Key Action Statements The guideline update group made strong recommendations for the following key action statements (KASs): (1) Clinicians should recommend watchful waiting for recurrent throat infection if there have been <7 episodes in the past year, <5 episodes per year in the past 2 years, or <3 episodes per year in the past 3 years. (2) Clinicians should administer a single intraoperative dose of intravenous dexamethasone to children undergoing tonsillectomy. (3) Clinicians should recommend ibuprofen, acetaminophen, or both for pain control after tonsillectomy. The guideline update group made recommendations for the following KASs: (1) Clinicians should assess the child with recurrent throat infection who does not meet criteria in KAS 2 for modifying factors that may nonetheless favor tonsillectomy, which may include but are not limited to multiple antibiotic allergies/intolerance, PFAPA (periodic fever, aphthous stomatitis, pharyngitis, and adenitis), or history of >1 peritonsillar abscess. (2) Clinicians should ask caregivers of children with obstructive sleep‐disordered breathing and tonsillar hypertrophy about comorbid conditions that may improve after tonsillectomy, including growth retardation, poor school performance, enuresis, asthma, and behavioral problems. (3) Before performing tonsillectomy, the clinician should refer children with obstructive sleep‐disordered breathing for polysomnography if they are <2 years of age or if they exhibit any of the following: obesity, Down syndrome, craniofacial abnormalities, neuromuscular disorders, sickle cell disease, or mucopolysaccharidoses. (4) The clinician should advocate for polysomnography prior to tonsillectomy for obstructive sleep‐disordered breathing in children without any of the comorbidities listed in KAS 5 for whom the need for tonsillectomy is uncertain or when there is discordance between the physical examination and the reported severity of obstructive sleep‐disordered breathing. (5) Clinicians should recommend tonsillectomy for children with obstructive sleep apnea documented by overnight polysomnography. (6) Clinicians should counsel patients and caregivers and explain that obstructive sleep‐disordered breathing may persist or recur after tonsillectomy and may require further management. (7) The clinician should counsel patients and caregivers regarding the importance of managing posttonsillectomy pain as part of the perioperative education process and should reinforce this counseling at the time of surgery with reminders about the need to anticipate, reassess, and adequately treat pain after surgery. (8) Clinicians should arrange for overnight, inpatient monitoring of children after tonsillectomy if they are <3 years old or have severe obstructive sleep apnea (apnea‐hypopnea index ≥10 obstructive events/hour, oxygen saturation nadir <80%, or both). (9) Clinicians should follow up with patients and/or caregivers after tonsillectomy and document in the medical record the presence or absence of bleeding within 24 hours of surgery (primary bleeding) and bleeding occurring later than 24 hours after surgery (secondary bleeding). (10) Clinicians should determine their rate of primary and secondary posttonsillectomy bleeding at least annually. The guideline update group made a strong recommendation against 2 actions: (1) Clinicians should not administer or prescribe perioperative antibiotics to children undergoing tonsillectomy. (2) Clinicians must not administer or prescribe codeine, or any medication containing codeine, after tonsillectomy in children younger than 12 years. The policy level for the recommendation about documenting recurrent throat infection was an option : (1) Clinicians may recommend tonsillectomy for recurrent throat infection with a frequency of at least 7 episodes in the past year, at least 5 episodes per year for 2 years, or at least 3 episodes per year for 3 years with documentation in the medical record for each episode of sore throat and ≥1 of the following: temperature >38.3°C (101°F), cervical adenopathy, tonsillar exudate, or positive test for group A beta‐hemolytic streptococcus. Differences from Prior Guideline Incorporating new evidence profiles to include the role of patient preferences, confidence in the evidence, differences of opinion, quality improvement opportunities, and any exclusion to which the action statement does not apply. There were 1 new clinical practice guideline, 26 new systematic reviews, and 13 new randomized controlled trials included in the current guideline update. Inclusion of 2 consumer advocates on the guideline update group. Changes to 5 KASs from the original guideline: KAS 1 (Watchful waiting for recurrent throat infection), KAS 3 (Tonsillectomy for recurrent infection with modifying factors), KAS 4 (Tonsillectomy for obstructive sleep‐disordered breathing), KAS 9 (Perioperative pain counseling), and KAS 10 (Perioperative antibiotics). Seven new KASs: KAS 5 (Indications for polysomnography), KAS 6 (Additional recommendations for polysomnography), KAS 7 (Tonsillectomy for obstructive sleep apnea), KAS 12 (Inpatient monitoring for children after tonsillectomy), KAS 13 (Postoperative ibuprofen and acetaminophen), KAS 14 (Postoperative codeine), and KAS 15a (Outcome assessment for bleeding). Addition of an algorithm outlining KASs. Enhanced emphasis on patient and/or caregiver education and shared decision making.
A Decision Analysis of Observation vs Immediate Reintervention for Asymptomatic Residual Fragments Less than 4 mm Following Ureteroscopic Lithotripsy
Ursiny, Michal, Yaghoubian, Alan J., Humphreys, Mitchell R. , Brotherhood, Hilary, Chew, Benjamin, Monga, Manoj, Krambeck, Amy E. , Charchenko, Cameron, Wang, An Qi, Sur, Roger L. , Miller, Nicole L. , Marien, Tracy , Chang, Yui-Hui H., Knudsen, Bodo E. , Lange, Dirk , Yong, Courtney , Matlaga, Brian R., Shah, Ojas , Pais, Vernon M., Lipkin, Michael E. , Eisner, Brian H. , Miller, Nicole L

Urology Practice | February 4, 2019 | Volume: 6 | Issue: 5 | Pages: 294-299

10.1097/upj.0000000000000038 | PMID 37317352 Get It

Renal Replacement Therapy and Intermittent Catheterization Risk in Posterior Urethral Valves
McLeod, Daryl J. , Szymanski, Konrad M. , Gong, Edward M. , Granberg, Candace F. , Reddy, Pramod , Sebastião, Yuri V. , Fuchs, Molly E. , Gargollo, Patricio C. , VanderBrink, Brian A. , (PUMA), on behalf of the Pediatric Urology Midwest Alliance, Granberg, Candace, Gargollo, Patricio, Whittam, Benjamin M. , (PUMA), on behalf of the Pediatric Urology Midwest Alliance

Pediatrics | February 1, 2019 | Volume: 143 | Issue: 3 | Pages: No page available

10.1542/peds.2018-2656 | PMID 30709926 Get It

OBJECTIVES: Posterior urethral valves predispose children to renal replacement therapy (RRT) and bladder dysfunction. Researchers of single-institutional series were unable to refine risk stratification because of rarity of the disease. We aimed to identify clinical variables associated with the risk of RRT and clean intermittent catheterization (CIC) in a large multicenter cohort study. METHODS: Children with posterior urethral valves born between 1995 and 2005 who were treated before 90 days of life at 5 children’s hospitals were retrospectively reviewed. Outcomes included RRT and recommendation for CIC. Predictors and outcomes were assessed by using survival analysis. RESULTS: A total of 274 patients were managed for a median of 6.3 years, and 42 progressed to RRT. On survival analysis, 16% progressed to RRT by 10 years of age. RRT varied by the serum nadir creatinine level in the first year of life (SNC1) (log-rank P &lt; .001). After stratifying by the SNC1, the estimated risk of progressing to RRT by 10 years of age was 0%, 2%, 27%, and 100% for an SNC1 of &lt;0.4, an SNC1 of 0.4 to 0.69, an SNC1 of 0.7 to 0.99, and an SNC1 of ≥1.0 mg/dL, respectively. CIC was recommended in 60 patients, which translated on survival analysis to a risk of 26% by 10 years of age. CONCLUSIONS: Risk of RRT and CIC recommendation increased with age. The SNC1 strongly predicted need for RRT. These results allow for both improved family counseling and the potential for more appropriate screening and intervention strategies for those identified in higher-risk groups.
Low Back Pain in Adults With Transfemoral Amputation: A Retrospective Population‐Based Study
Luetmer, Marianne T. , Mundell, Benjamin F. , Kremers, Hilal Maradit , Visscher, Sue L. , Hoppe, Kurtis M., Luetmer, Marianne, Mundell, Benjamin, Visscher, Sue, Maradit Kremers, Hilal , Kaufman, Kenton R.

PM&R | January 31, 2019 | Volume: 11 | Issue: 9 | Pages: 926-933

10.1002/pmrj.12087 | PMID 30701681 Get It

Background Low back pain (LBP) is common among individuals with transfemoral amputation (TFA) and has a negative impact on quality of life. Little is known about health care utilization for LBP in this population and whether utilization varies by amputation etiology. Objective To determine if individuals with TFA have an increased likelihood of seeking care or reporting symptoms of acute or chronic LBP during physician visits after amputation compared with matched individuals without amputation. Design Retrospective cohort. Setting Olmsted County, Minnesota (2010 population: 144 248). Participants All individuals with incident TFA (N = 96), knee disarticulation, and transfemoral amputation residing in Olmsted County between 1987 and 2014. Each was matched (1:10 ratio) with non‐TFA adults on age, sex, and duration of residency. Individuals were divided by etiology of amputation: dysvascular and trauma/cancer. Interventions Not applicable. Main Outcome Measurements Death and presentation for evaluation of LBP (LBP event) while residing in Olmsted County. LBP events were identified using validated International Classification of Diseases, Ninth Revision (ICD‐9) codes and corresponding Berkson, Hospital International Classification of Diseases Adapted (HICDA), and ICD‐10 diagnostic codes. Hurdle and competing‐risk Cox proportional hazard models were used. Results Having a TFA of either etiology did appear to correlate with increased frequency of LBP events, although this association was only statistically significant within the dysvascular TFA cohort (dysvascular TFA cohort: relative risk [RR] 1.80, 95% confidence interval [CI] 1.07‐3.03, median follow‐up 0.78 years; trauma/cancer TFA cohort: RR 1.14, 95% CI 0.58‐2.22, median follow‐up 7.95 years). In time to event analysis, dysvascular TFA had an increased risk of death and event. Obesity did not significantly correlate with increased frequency of LBP events or time to event for either cohort. At any given point in time, individuals with TFA of either etiology who had phantom limb pain were 90% more likely to have an LBP event (hazard ratio [HR] 1.91, 95% CI 1.11‐3.31). Conditional on not dying and no LBP event within the first 2.5 years, individuals with prosthesis had a decreased risk of LBP events in subsequent years. Conclusions Risk of LBP events appears to vary by TFA etiology. Obesity did not correlate significantly with increased frequency of LBP event or time to event. Phantom limb pain correlated with decreased time to LBP event after amputation. The association between prosthesis receipt and LBP events is ambiguous. Level of Evidence III.