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Moya-Mendez ME, DeLaura I, Thornton SW, Williams AR, Zwischenberger BA. Quality Improvement Initiative to Increase Radial Artery Usage as a Second Arterial Conduit in Coronary Artery Bypass Grafting. Interdiscip Cardiovasc Thorac Surg 2024:ivae068. [PMID: 38652599 DOI: 10.1093/icvts/ivae068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 10/11/2023] [Accepted: 04/20/2024] [Indexed: 04/25/2024]
Abstract
OBJECTIVES Use of radial artery as a second arterial graft, compared to a saphenous vein, in coronary artery bypass grafting (CABG) can improve late outcomes. However, the radial artery remains underutilized. We initiated a quality improvement (QI) initiative to increase usage of radial artery grafts. METHODS During our four-month lead period, we disseminated evidence for radial artery graft usage to surgeons, developed a radial artery decision-making algorithm, and adopted endoscopic harvesting. Our QI initiative was conducted over a six-month period and included a post-operative survey of decision-making for graft selection and obstacles to radial artery usage. RESULTS Over the six-month study period, 247 patients received isolated CABG which included 98 (40%) with radial arteries as a second arterial graft and 144 (58%) with greater saphenous vein. Radial artery usage increased with QI initiative implementation by 67% compared to the six-months prior to the study period (60 radial arteries/252 isolated CABG, 24%) (P = 0.006). The survey response rate was 93% (231/247). Barriers to radial artery graft usage were poor quality target vessel or stenosis <80% (24%), patient age >75 years (20%), EF ≤ 35% (8%) and renal insufficiency/dialysis (7%). No patients experienced complications from radial artery harvest. CONCLUSIONS Our institutional QI initiative was successful in 1) increasing usage of radial artery as a second arterial graft and 2) understanding barriers to radial artery graft usage. Implementation of a QI program can improve radial artery usage in CABG with low risk of patient morbidity from radial artery harvest.
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Affiliation(s)
| | | | | | - Adam R Williams
- Division of Cardiothoracic Surgery, Department of Surgery, Duke University Hospital, Durham, NC, USA
| | - Brittany A Zwischenberger
- Division of Cardiothoracic Surgery, Department of Surgery, Duke University Hospital, Durham, NC, USA
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Moya-Mendez ME, Thornton S, Rhodin KE, Gao Q, Leraas HJ, Vatsaas CJ. Longitudinal Integrated Clerkships and Undergraduate Surgical Education: A Scoping Review and Gap Analysis. J Surg Educ 2024; 81:367-372. [PMID: 38272748 DOI: 10.1016/j.jsurg.2023.12.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 10/23/2023] [Accepted: 12/14/2023] [Indexed: 01/27/2024]
Abstract
OBJECTIVE Longitudinal integrated clerkships (LICs) are an increasingly popular approach to medical student clinical education, and the literature describing them is expanding. Despite this, there is a lack of understanding for how surgery didactics and skills are currently taught as a part of the LIC curriculum. DESIGN We conducted a scoping literature review in July 2022 using terms related to LIC and surgical education. Abstract and full-length text screening followed. Data extraction was completed in August 2022. Articles published in English, focused on LIC students, and discussed any element of LIC curriculum surgical education was included. SETTING Scoping literature review. PARTICIPANTS A total of 282 studies describing LICs were identified from the scoping literature review. After applying inclusion and exclusion criteria, 37 (13%) studies describing some element of surgical education were included. RESULTS Of these 37 studies, the majority did not delve into pertinent details related to students' surgery experience, expectations, and surgical skills accomplishments. Four studies (11%) reported on the outpatient surgical experience, such as minimum required time that students were expected to be in the clinic, and 8 studies (22%) described the inpatient and operating room exposure. Only 1 study (3%) described the surgical floor management of surgical patients, including tasks like documentation and wound care, and 3 studies (8%) reported formal assessment of surgical skills, such as suturing technique. CONCLUSIONS Our study highlights the paucity LIC literature examining the relationship between this curricular innovation and the unique needs of medical students on a surgical clerkship. Surgeon educators should embrace the opportunity to contribute LIC curriculum development and subsequent investigation into how this modality interfaces with the learning objectives of undergraduate surgical education. A formal description of essential curriculum components for all surgical LIC programs is needed to ensure appropriate surgical education across the varied LIC models.
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Affiliation(s)
| | - Steven Thornton
- Department of Surgery, Duke University School of Medicine, Durham, North Carolina
| | - Kristen E Rhodin
- Department of Surgery, Duke University School of Medicine, Durham, North Carolina
| | - Qimeng Gao
- Department of Surgery, Duke University School of Medicine, Durham, North Carolina
| | - Harold J Leraas
- Department of Surgery, Duke University School of Medicine, Durham, North Carolina.
| | - Cory J Vatsaas
- Division of Trauma, Acute, and Critical Care Surgery, Department of Surgery, Duke University School of Medicine, Durham, North Carolina.
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Medina CK, Prabhu NK, Alderete IS, Parker LE, Lim HK, Moya-Mendez ME, Kang L, Campbell MJ, Overbey DM, Turek JW, Andersen ND. Days alive and out of hospital for children born with single-ventricle heart disease. Cardiol Young 2024:1-6. [PMID: 38410043 DOI: 10.1017/s1047951124000118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
BACKGROUND This study describes the illness burden in the first year of life for children with single-ventricle heart disease, using the metric of days alive and out of hospital to characterize morbidity and mortality. METHODS This is a retrospective single-centre study of single-ventricle patients born between 2005 and 2021 who had their initial operation performed at our institution. Patient demographics, anatomical details, and hospitalizations were extracted from our institutional single-ventricle database. Days alive and out of hospital were calculated by subtracting the number of days hospitalized from number of days alive during the first year of life. A multivariable linear regression with stepwise variable selection was used to determine independent risk factors associated with fewer days alive and out of hospital. RESULTS In total, 437 patients were included. Overall median number of days alive and out of hospital in the first year of life for single-ventricle patients was 278 days (interquartile range 157-319 days). In a multivariable analysis, low birth weight (<2.5kg) (b = -37.55, p = 0.01), presence of a dominant right ventricle (b = -31.05, p = 0.01), moderate-severe dominant atrioventricular valve regurgitation at birth (b = -37.65, p < 0.05), index hybrid Norwood operation (b = -138.73, p < 0.01), or index heart transplant (b = -158.41, p < 0.01) were all independently associated with fewer days alive and out of hospital. CONCLUSIONS Children with single-ventricle heart defects have significant illness burden in the first year of life. Identifying risk factors associated with fewer days alive and out of hospital may aid in counselling families regarding expectations and patient prognosis.
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Affiliation(s)
- Cathlyn K Medina
- Congenital Heart Surgery Research and Training Laboratory, Duke University, Durham, NC, USA
| | - Neel K Prabhu
- Congenital Heart Surgery Research and Training Laboratory, Duke University, Durham, NC, USA
| | - Isaac S Alderete
- Congenital Heart Surgery Research and Training Laboratory, Duke University, Durham, NC, USA
| | - Lauren E Parker
- Congenital Heart Surgery Research and Training Laboratory, Duke University, Durham, NC, USA
| | - Hoe King Lim
- Congenital Heart Surgery Research and Training Laboratory, Duke University, Durham, NC, USA
| | - Mary E Moya-Mendez
- Congenital Heart Surgery Research and Training Laboratory, Duke University, Durham, NC, USA
| | - Lillian Kang
- Congenital Heart Surgery Research and Training Laboratory, Duke University, Durham, NC, USA
| | - M Jay Campbell
- Duke Children's Pediatric and Congenital Heart Center, Durham, NC, USA
| | - Douglas M Overbey
- Congenital Heart Surgery Research and Training Laboratory, Duke University, Durham, NC, USA
- Duke Children's Pediatric and Congenital Heart Center, Durham, NC, USA
| | - Joseph W Turek
- Congenital Heart Surgery Research and Training Laboratory, Duke University, Durham, NC, USA
- Duke Children's Pediatric and Congenital Heart Center, Durham, NC, USA
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Prabhu NK, Moya-Mendez ME, Kang L, Medina CK, McCrary AW, Allareddy V, Overbey D, Turek JW. Textbook Outcome for Superior Cavopulmonary Connection: A Metric for Single Ventricle Heart Surgery. World J Pediatr Congenit Heart Surg 2024:21501351231215261. [PMID: 38263731 DOI: 10.1177/21501351231215261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Abstract
Background: To develop a more holistic measure of congenital heart center performance beyond mortality, we created a composite "textbook outcome" (TO) for the Glenn operation. We hypothesized that meeting TO would have a positive prognostic and financial impact. Methods: This was a single center retrospective study of patients undergoing superior cavopulmonary connection (bidirectional Glenn or Kawashima ± concomitant procedures) from 2005 to 2021. Textbook outcome was defined as freedom from operative mortality, reintervention, 30-day readmission, extracorporeal membrane oxygenation, major thrombotic complication, length of stay (LOS) >75th percentile (17d), and mechanical ventilation duration >75th percentile (2d). Multivariable logistic regression and Cox proportional hazards modeling were used. Results: Fifty-one percent (137/269) of patients met TO. Common reasons for TO failure were prolonged LOS (78/132, 59%) and ventilator duration (67/132, 51%). In multivariable analysis, higher weight [odds ratio, OR: 1.44 (95% confidence interval, CI: 1.15-1.84), P = .002] was a positive predictor of TO achievement while right ventricular dominance [OR 0.47 (0.27-0.81), P = .007] and higher preoperative pulmonary vascular resistance [OR 0.58 (0.40-0.82), P = .003] were negative predictors. After controlling for preoperative factors and excluding operative mortalities, TO achievement was independently associated with a decreased risk of death over long-term follow-up [hazard ratio: 0.50 (0.25-0.99), P = .049]. Textbook outcome achievement was also associated with lower direct cost of care [$137,626 (59,333-167,523) vs $262,299 (114,200-358,844), P < .0001]. Conclusion: Achievement of the Glenn TO is associated with long-term survival and lower costs and can be predicted by certain risk factors. As outcomes continue to improve within congenital heart surgery, operative mortality will become a less informative metric. Textbook outcome analysis may represent a more balanced measure of a successful outcome.
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Affiliation(s)
- Neel K Prabhu
- Congenital Heart Surgery Research and Training Laboratory, Department of Surgery, Duke University Medical Center, Durham, NC, USA
| | - Mary E Moya-Mendez
- Congenital Heart Surgery Research and Training Laboratory, Department of Surgery, Duke University Medical Center, Durham, NC, USA
| | - Lillian Kang
- Congenital Heart Surgery Research and Training Laboratory, Department of Surgery, Duke University Medical Center, Durham, NC, USA
| | - Cathlyn K Medina
- Congenital Heart Surgery Research and Training Laboratory, Department of Surgery, Duke University Medical Center, Durham, NC, USA
| | - Andrew W McCrary
- Duke Children's Pediatric and Congenital Heart Center, Duke University Medical Center, Durham, NC, USA
| | - Veerajalandhar Allareddy
- Duke Children's Pediatric and Congenital Heart Center, Duke University Medical Center, Durham, NC, USA
| | - Douglas Overbey
- Congenital Heart Surgery Research and Training Laboratory, Department of Surgery, Duke University Medical Center, Durham, NC, USA
- Duke Children's Pediatric and Congenital Heart Center, Duke University Medical Center, Durham, NC, USA
| | - Joseph W Turek
- Congenital Heart Surgery Research and Training Laboratory, Department of Surgery, Duke University Medical Center, Durham, NC, USA
- Duke Children's Pediatric and Congenital Heart Center, Duke University Medical Center, Durham, NC, USA
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Williams AR, Moya-Mendez ME, Mehta S, Vekstein A, Harrison JK, Milano CA, Plichta RP, Haney J, Schroder JN, Zwischenberger B, Glower D, Gaca JG. Infarct exclusion repair of postmyocardial infarction ventricular septal rupture with a hybrid patch and septal occluder device compared with patch only. JTCVS Tech 2023; 22:228-236. [PMID: 38152175 PMCID: PMC10750469 DOI: 10.1016/j.xjtc.2023.07.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Revised: 07/09/2023] [Accepted: 07/22/2023] [Indexed: 12/29/2023] Open
Abstract
Objective We developed a hybrid technique for repairing post-myocardial infarction (MI) ventricular septal defect (VSD) that combines infarct exclusion with patch and a nitinol-mesh septal occluder device (SOD) to provide a scaffold to support the damaged septal wall. Here, we compare outcomes of patients with post-MI VSD repaired using patch only or hybrid patch/SOD. Methods Patients undergoing post-MI VSD repair at our institution from 2013 to 2022 who received patch alone or patch/SOD repair were analyzed. Primary outcome was survival to hospital discharge. Clinical outcomes and echocardiograms were also analyzed. Results Over a 9-year period, 24 patients had post-MI VSD repair at our institution with either hybrid patch/SOD (n = 10) or patch only repair (n = 14). VSD size was 18 ± 5.8 mm for patch/SOD and 17 ± 4.6 mm for patch only. In the patch/SOD repair cohort, average size of SOD implant was 23.6 ± 5.6 mm. Mild left ventricular dysfunction was present prerepair and was unchanged postrepair in both groups; however, moderate-to-severe right ventricular (RV) dysfunction was common in both groups before repair. RV function worsened or persisted as severe in 10% of hybrid versus 54% of patch-only patients postrepair. Tricuspid annular systolic excursion and RV:left ventricle diameter ratio, quantitative metrics of RV function, improved after patch/SOD repair. No intraoperative mortality occurred in either group. Postoperative renal, hepatic, and respiratory failure requiring tracheostomy was common in both groups. Survival to hospital discharge in both cohorts was 70%. Conclusions Post-MI VSD repair with patch/SOD has comparable short-term outcomes with patch alone. Addition of a SOD to patch repair provides a scaffold that may enhance the repair of post-MI VSD with patch exclusion.
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Affiliation(s)
- Adam R. Williams
- Division of Cardiothoracic Surgery, Department of Surgery, Duke University Hospital, Durham, NC
| | - Mary E. Moya-Mendez
- Division of Cardiothoracic Surgery, Department of Surgery, Duke University Hospital, Durham, NC
| | - Sachin Mehta
- Division of Cardiothoracic Anesthesia, Department of Anesthesia, Duke University Hospital, Durham, NC
| | - Andrew Vekstein
- Division of Cardiothoracic Surgery, Department of Surgery, Duke University Hospital, Durham, NC
| | - J. Kevin Harrison
- Division of Cardiology, Department of Medicine, Duke University Hospital, Durham, NC
| | - Carmelo A. Milano
- Division of Cardiothoracic Surgery, Department of Surgery, Duke University Hospital, Durham, NC
| | - Ryan P. Plichta
- Division of Cardiothoracic Surgery, Department of Surgery, Duke University Hospital, Durham, NC
| | - John Haney
- Division of Cardiothoracic Surgery, Department of Surgery, Duke University Hospital, Durham, NC
| | - Jacob N. Schroder
- Division of Cardiothoracic Surgery, Department of Surgery, Duke University Hospital, Durham, NC
| | - Brittany Zwischenberger
- Division of Cardiothoracic Surgery, Department of Surgery, Duke University Hospital, Durham, NC
| | - Donald Glower
- Division of Cardiothoracic Surgery, Department of Surgery, Duke University Hospital, Durham, NC
| | - Jeffrey G. Gaca
- Division of Cardiothoracic Surgery, Department of Surgery, Duke University Hospital, Durham, NC
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Thornton SW, Meza JM, Prabhu NK, Kang L, Moya-Mendez ME, Parker LE, Fleming GA, Turek JW, Andersen ND. Impact of Ventricular Dominance on Long-Term Fontan Outcomes: A 25-year Single-institution Study. Ann Thorac Surg 2023; 116:508-515. [PMID: 36543280 DOI: 10.1016/j.athoracsur.2022.11.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 11/14/2022] [Accepted: 11/28/2022] [Indexed: 12/23/2022]
Abstract
BACKGROUND The long-term impact of ventricular dominance on Fontan outcomes is controversial. This study examined this issue in a 25-year cohort. METHODS Patients undergoing the Fontan operation at a single institution (Duke University Medical Center, Durham, NC) from October 1998 to February 2022 were reviewed. Primary outcomes were transplant-free survival and Fontan failure (death, heart transplantation, takedown, protein-losing enteropathy, or plastic bronchitis). Secondary outcomes included hospital and intensive care lengths of stay. Kaplan-Meier methodology compared outcomes by ventricular dominance. Multiphase parametric risk hazard analysis identified risk factors for primary outcomes. RESULTS There were 195 patients (104 right ventricular dominant) included in the study. Baseline characteristics were comparable. Perioperative survival was similar (right ventricular dominant, 98%; non-right ventricular dominant, 100%; P = .51). The proportion of patients experiencing death or heart transplantation was 8.7%, and the rate of Fontan failure was 11.8% during a median follow-up of 4.5 years (interquartile range, 0.3-9.8 years). Right ventricular-dominant patients had reduced transplant-free survival (10-year estimates: 80% [95% CI, 70%-91%] vs 92% [95% CI, 83%-100%]; P = .04) and freedom from Fontan failure (73% [95% CI, 62%-86%] vs 92% [95% CI, 83%-100%]; P = .04). Multiphase hazard modeling resolved 2 risk phases. The early phase spanned from surgery to approximately 6 months afterward. The late phase spanned from approximately 6 months after surgery onward. In multivariable analysis, right ventricular dominance was an independent risk factor for death or heart transplantation (parameter estimate, 1.3 ± 0.6; P = .04) and Fontan failure (1.1 ± 0.5; P = .04) during the second phase, with no significant first-phase risk factors. CONCLUSIONS Right ventricular dominance was associated with long-term complications after Fontan procedures, including mortality, heart transplantation, and Fontan failure. This cohort may benefit from heightened surveillance in a multidisciplinary Fontan clinic after the perioperative period.
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Affiliation(s)
- Steven W Thornton
- Duke University School of Medicine, Durham, North Carolina; Duke Congenital Heart Surgery Research and Training Laboratory, Durham, North Carolina.
| | - James M Meza
- Duke Congenital Heart Surgery Research and Training Laboratory, Durham, North Carolina; Division of Cardiovascular and Thoracic Surgery, Duke University Hospitals, Durham, North Carolina
| | - Neel K Prabhu
- Duke University School of Medicine, Durham, North Carolina; Duke Congenital Heart Surgery Research and Training Laboratory, Durham, North Carolina
| | - Lillian Kang
- Department of Surgery, Duke University Hospitals, Durham, North Carolina; Duke Congenital Heart Surgery Research and Training Laboratory, Durham, North Carolina
| | - Mary E Moya-Mendez
- Duke University School of Medicine, Durham, North Carolina; Duke Congenital Heart Surgery Research and Training Laboratory, Durham, North Carolina
| | - Lauren E Parker
- Duke University School of Medicine, Durham, North Carolina; Duke Congenital Heart Surgery Research and Training Laboratory, Durham, North Carolina
| | - Gregory A Fleming
- Department of Pediatrics, Duke University Hospitals, Durham, North Carolina; Duke Congenital Heart Surgery Research and Training Laboratory, Durham, North Carolina
| | - Joseph W Turek
- Duke Congenital Heart Surgery Research and Training Laboratory, Durham, North Carolina; Division of Cardiovascular and Thoracic Surgery, Duke University Hospitals, Durham, North Carolina
| | - Nicholas D Andersen
- Duke Congenital Heart Surgery Research and Training Laboratory, Durham, North Carolina; Division of Cardiovascular and Thoracic Surgery, Duke University Hospitals, Durham, North Carolina
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Jensen CW, Kang L, Moya-Mendez ME, Rhodin KE, Vekstein AM, Schuyler Jones W, Rymer JA, Zwischenberger BA, Williams AR. Initial Management Strategy and Long-Term Outcomes in 186 Cases of Spontaneous Coronary Artery Dissection. Semin Thorac Cardiovasc Surg 2023:S1043-0679(23)00088-6. [PMID: 37633623 PMCID: PMC10894310 DOI: 10.1053/j.semtcvs.2023.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 05/17/2023] [Indexed: 08/28/2023]
Abstract
Spontaneous coronary artery dissection (SCAD) is a rare but important nonatherosclerotic cause of acute coronary syndrome. Indications for revascularization and long-term outcomes of SCAD remain areas of active investigation. We report our experience with initial management strategy and long-term outcomes in SCAD. We reviewed all patients treated at our institution from 1996-2021 with a SCAD diagnosis. Demographics, comorbidities, clinical presentations, angiography findings, and management strategies were obtained by chart review. The primary outcome was a composite of cardiac death, recurrent/progressive SCAD, subsequent diagnosis of congestive heart failure, or subsequent/repeat revascularization after the initial management. Unadjusted Kaplan-Meier survival analysis was performed. Of 186 patients with a SCAD diagnosis treated at our institution, 149 (80%) were female. Medical management was the initial treatment in 134 (72.0%) patients, percutaneous coronary intervention (PCI) in 43 (23.1%), and coronary artery bypass grafting in 9 (4.8%). Surgery/PCI intervention was associated with younger age (38.8 vs 47.7 years, P = 0.01), ST elevation myocardial infarction on presentation (67.0% vs 34.0%, P < 0.001), lower ejection fraction (45.0% vs 55.0%, P = 0.002), and left anterior descending coronary artery dissection (75.0% vs 51.0%, P = 0.006). Ten-year freedom from our composite outcome was similar between revascularized patients and those managed with medical therapy (P = 0.36). Median follow-up time was 4.5 years. SCAD in the setting of ST elevation myocardial infarction, left anterior descending coronary artery involvement, or decreased cardiac function suggests greater ischemic insult and was associated with initial percutaneous or surgical revascularization. Despite worse disease on initial presentation, long-term outcomes of patients undergoing revascularization are similar to medically managed patients with SCAD.
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Affiliation(s)
- Christopher W Jensen
- Division of Cardiovascular and Thoracic Surgery, Department of Surgery, Duke University School of Medicine.
| | - Lillian Kang
- Division of Cardiovascular and Thoracic Surgery, Department of Surgery, Duke University School of Medicine
| | | | - Kristen E Rhodin
- Division of Cardiovascular and Thoracic Surgery, Department of Surgery, Duke University School of Medicine
| | - Andrew M Vekstein
- Division of Cardiovascular and Thoracic Surgery, Department of Surgery, Duke University School of Medicine
| | - W Schuyler Jones
- Division of Cardiology, Department of Medicine, Duke University School of Medicine
| | - Jennifer A Rymer
- Division of Cardiology, Department of Medicine, Duke University School of Medicine
| | - Brittany A Zwischenberger
- Division of Cardiovascular and Thoracic Surgery, Department of Surgery, Duke University School of Medicine
| | - Adam R Williams
- Division of Cardiovascular and Thoracic Surgery, Department of Surgery, Duke University School of Medicine
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Kurzlechner LM, Kishnani S, Chowdhury S, Atkins SL, Moya-Mendez ME, Parker LE, Rosamilia MB, Tadros HJ, Pace LA, Patel V, Chahal CAA, Landstrom AP. DiscoVari: A Web-Based Precision Medicine Tool for Predicting Variant Pathogenicity in Cardiomyopathy- and Channelopathy-Associated Genes. Circ Genom Precis Med 2023; 16:317-327. [PMID: 37409478 PMCID: PMC10527712 DOI: 10.1161/circgen.122.003911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 05/30/2023] [Indexed: 07/07/2023]
Abstract
BACKGROUND With genetic testing advancements, the burden of incidentally identified cardiac disease-associated gene variants is rising. These variants may carry a risk of sudden cardiac death, highlighting the need for accurate diagnostic interpretation. We sought to identify pathogenic hotspots in sudden cardiac death-associated genes using amino acid-level signal-to-noise (S:N) analysis and develop a web-based precision medicine tool, DiscoVari, to improve variant evaluation. METHODS The minor allele frequency of putatively pathogenic variants was derived from cohort-based cardiomyopathy and channelopathy studies in the literature. We normalized disease-associated minor allele frequencies to rare variants in an ostensibly healthy population (Genome Aggregation Database) to calculate amino acid-level S:N. Amino acids with S:N above the gene-specific threshold were defined as hotspots. DiscoVari was built using JavaScript ES6 and using open-source JavaScript library ReactJS, web development framework Next.js, and JavaScript runtime NodeJS. We validated the ability of DiscoVari to identify pathogenic variants using variants from ClinVar and individuals clinically evaluated at the Duke University Hospitals with cardiac genetic testing. RESULTS We developed DiscoVari as an internet-based tool for S:N-based variant hotspots. Upon validation, a higher proportion of ClinVar likely pathogenic/pathogenic variants localized to DiscoVari hotspots (43.1%) than likely benign/benign variants (17.8%; P<0.0001). Further, 75.3% of ClinVar variants reclassified to likely pathogenic/pathogenic were in hotspots, compared with 41.3% of those reclassified as variants of uncertain significance (P<0.0001) and 23.4% of those reclassified as likely benign/benign (P<0.0001). Of the clinical cohort variants, 73.1% of likely pathogenic/pathogenic were in hotspots, compared with 0.0% of likely benign/benign (P<0.01). CONCLUSIONS DiscoVari reliably identifies disease-susceptible amino acid residues to evaluate variants by searching amino acid-specific S:N ratios.
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Affiliation(s)
| | - Sujata Kishnani
- Dept of Pediatrics, Division of Pediatric Cardiology, Durham, NC
| | - Shawon Chowdhury
- Dept of Pediatrics, Division of Pediatric Cardiology, Durham, NC
| | - Sage L. Atkins
- Dept of Pediatrics, Division of Pediatric Cardiology, Durham, NC
| | | | - Lauren E. Parker
- Dept of Pediatrics, Division of Pediatric Cardiology, Durham, NC
| | | | - Hanna J. Tadros
- Dept of Pediatrics, Section of Pediatric Cardiology, Baylor College of Medicine, Houston, TX
| | - Leslie A. Pace
- Dept of Pediatrics, Division of Pediatric Cardiology, Durham, NC
| | - Viraj Patel
- North West Thames Regional Genetics Service, St Mark’s Hospital, London, United Kingdom
| | - C. Anwar A. Chahal
- Center for Inherited Cardiovascular Diseases, WellSpan Health, Lancaster, PA
- Barts Heart Centre, St Bartholomew’s Hospital, Barts Health NHS Trust, London, United Kingdom
- Cardiac Electrophysiology, Cardiovascular Division, Hospital of the Univ of Pennsylvania, Philadelphia, PA
- Dept of Cardiovascular Medicine, Mayo Clinic, Rochester, MN
| | - Andrew P. Landstrom
- Dept of Pediatrics, Division of Pediatric Cardiology, Durham, NC
- Dept of Cell Biology, Duke Univ School of Medicine, Durham, NC
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Ruckart KW, Wilson C, Moya-Mendez ME, Madden LL, Laxton A, Siddiqui MS. Effect of Ventral Intermediate Nucleus Deep Brain Stimulation on Vocal Tremor in Essential Tremor. Tremor Other Hyperkinet Mov (N Y) 2023; 13:13. [PMID: 37152623 PMCID: PMC10162197 DOI: 10.5334/tohm.757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 04/18/2023] [Indexed: 05/09/2023] Open
Abstract
Background There is a paucity of literature examining the effect of Ventral Intermediate Nucleus (VIM) deep brain stimulation (DBS) on voice in patients with vocal tremor (VT). Objective Investigate the effect of unilateral and bilateral VIM DBS on voice in patients with Essential Tremor (ET) and VT. Methods All patients receiving VIM DBS surgery underwent voice evaluation pre- and six-months post-operatively. We collected patient-reported quality-of-life outcome measures and acoustic voice measures of sustained phonation and connected speech. Acoustic measures specific to VT included amplitude tremor intensity index (ATRI), frequency tremor intensity index (FTRI), rate and extent of F0 modulation, and rate and extent of intensity modulation. Results Five patients, age 72.8 ± 2.6 years, 4 female, 1 male with mean disease duration of 29 ± 26.2 years met the inclusion criteria and were included. Two subjects had bilateral procedure and three had unilateral. We observed significant improvements in measures of vocal tremor including ATRI, FTRI, rate of F0 modulation, rate of intensity modulation, and extent of intensity modulation, as well as patient reported voice-related quality of life measured by VHI-10. Bilateral VIM DBS cases showed greater improvement in VT than unilateral cases. Conclusion Both unilateral and bilateral VIM DBS resulted in significant improvement of VT, with more improvement demonstrated in patients having bilateral as compared to unilateral VIM DBS. In addition, patients also reported significant improvements in voice-related quality of life. If larger studies confirm our results, VIM DBS has the potential to become a treatment specifically for disabling VT.
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Affiliation(s)
- Kathryn W. Ruckart
- Department of Otolaryngology-Head and Neck Surgery, Atrium Health Wake Forest Baptist/Wake Forest University School of Medicine, Winston-Salem, NC, US
| | - Caroline Wilson
- Department of Radiology, Atrium Health Wake Forest Baptist/Wake Forest University School of Medicine, Winston-Salem, NC, US
| | | | - Lyndsay L. Madden
- Department of Otolaryngology-Head and Neck Surgery, Atrium Health Wake Forest Baptist/Wake Forest University School of Medicine, Winston-Salem, NC, US
| | - Adrian Laxton
- Department of Neurology, Atrium Health Wake Forest Baptist/Wake Forest University School of Medicine, Winston-Salem, NC, US
| | - Mustafa S. Siddiqui
- Department of Neurology, Atrium Health Wake Forest Baptist/Wake Forest University School of Medicine, Winston-Salem, NC, US
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10
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Funk EM, Mikati MA, Landstrom AP, Moya-Mendez ME, Wallace KR, Pratt MO, Heyes ME, Dear G. Anesthetic Implications in Alternating Hemiplegia of Childhood: A Case Report. AANA J 2022; 90:297-302. [PMID: 35943757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The following case report describes a 13-year-old child with alternating hemiplegia of childhood (AHC) who underwent magnetic resonance imaging MRI with general anesthesia and experienced a hemiplegic spell, seizure, apnea, and sudden cardiac arrest with successful resuscitation. AHC is a rare neurodevelopmental disorder characterized by repeated episodes of weakness or paralysis affecting one or both sides of the body and multiple other neurologic problems. The challenges associated with this disorder include management of developmental delay, dystonia, hemiplegia, cerebrovascular dysfunction, apnea, and autonomic dysfunction. The current literature is extremely limited in describing the effects of general anesthesia for a patient with AHC. While the neurologic manifestations of AHC are well described, autonomic dysfunction and the potential for sudden cardiac arrest have not been widely reported. To our knowledge, this is the first case report to emphasize anesthetic considerations in a pediatric patient with AHC, specifically the unrecognized potential for cardiac arrhythmia and sudden cardiac arrest.
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Affiliation(s)
- Emily M Funk
- is an assistant professor of the Duke School of Nursing Nurse Anesthesia Program and a clinical staff CRNA at Duke University Medical Center, Durham, North Carolina.
| | - Mohamad A Mikati
- is in the Department of Pediatrics and Neurobiology, Duke University Medical Center, Durham, North Carolina
| | - Andrew P Landstrom
- is in the Department of Pediatrics, Division of Cardiology and Department of Cell Biology, Duke University School of Medicine, Durham, North Carolina
| | - Mary E Moya-Mendez
- is in the Department of Pediatrics, Division of Pediatric Cardiology, Duke University School of Medicine, Durham, North Carolina
| | - Keri R Wallace
- is in the Department of Pediatrics and Neurobiology, Duke University Medical Center, Durham, North Carolina
| | - Milton O Pratt
- is in the Department of Pediatrics and Neurobiology, Duke University Medical Center, Durham, North Carolina
| | - Matthew E Heyes
- is at Duke University Medical Center, Durham, North Carolina
| | - Guy Dear
- is an Associate Professor of Pediatrics in the Department of Anesthesiology, Duke University Medical Center, Durham, North Carolina
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11
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Draelos RL, Ezekian JE, Zhuang F, Moya-Mendez ME, Zhang Z, Rosamilia MB, Manivannan PKR, Henao R, Landstrom AP. GENESIS: Gene-Specific Machine Learning Models for Variants of Uncertain Significance Found in Catecholaminergic Polymorphic Ventricular Tachycardia and Long QT Syndrome-Associated Genes. Circ Arrhythm Electrophysiol 2022; 15:e010326. [PMID: 35357185 PMCID: PMC9018586 DOI: 10.1161/circep.121.010326] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND Cardiac channelopathies such as catecholaminergic polymorphic tachycardia and long QT syndrome predispose patients to fatal arrhythmias and sudden cardiac death. As genetic testing has become common in clinical practice, variants of uncertain significance (VUS) in genes associated with catecholaminergic polymorphic ventricular tachycardia and long QT syndrome are frequently found. The objective of this study was to predict pathogenicity of catecholaminergic polymorphic ventricular tachycardia-associated RYR2 VUS and long QT syndrome-associated VUS in KCNQ1, KCNH2, and SCN5A by developing gene-specific machine learning models and assessing them using cross-validation, cellular electrophysiological data, and clinical correlation. METHODS The GENe-specific EnSemble grId Search framework was developed to identify high-performing machine learning models for RYR2, KCNQ1, KCNH2, and SCN5A using variant- and protein-specific inputs. Final models were applied to datasets of VUS identified from ClinVar and exome sequencing. Whole cell patch clamp and clinical correlation of selected VUS was performed. RESULTS The GENe-specific EnSemble grId Search models outperformed alternative methods, with area under the receiver operating characteristics up to 0.87, average precisions up to 0.83, and calibration slopes as close to 1.0 (perfect) as 1.04. Blinded voltage-clamp analysis of HEK293T cells expressing 2 predicted pathogenic variants in KCNQ1 each revealed an ≈80% reduction of peak Kv7.1 current compared with WT. Normal Kv7.1 function was observed in KCNQ1-V241I HEK cells as predicted. Though predicted benign, loss of Kv7.1 function was observed for KCNQ1-V106D HEK cells. Clinical correlation of 9/10 variants supported model predictions. CONCLUSIONS Gene-specific machine learning models may have a role in post-genetic testing diagnostic analyses by providing high performance prediction of variant pathogenicity.
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Affiliation(s)
- Rachel L Draelos
- Department of Computer Science, Trinity College of Arts and Sciences (R.L.D., F.Z.), Duke University.,Medical Scientist Training Program (R.L.D.), Duke University School of Medicine, Durham, NC
| | - Jordan E Ezekian
- Department of Pediatrics, Division of Cardiology (J.E.Z., M.E.M.-M., Z.Z., M.B.R., P.K.R.M., A.P.L.), Duke University School of Medicine, Durham, NC
| | - Farica Zhuang
- Department of Computer Science, Trinity College of Arts and Sciences (R.L.D., F.Z.), Duke University
| | - Mary E Moya-Mendez
- Department of Pediatrics, Division of Cardiology (J.E.Z., M.E.M.-M., Z.Z., M.B.R., P.K.R.M., A.P.L.), Duke University School of Medicine, Durham, NC
| | - Zhushan Zhang
- Department of Pediatrics, Division of Cardiology (J.E.Z., M.E.M.-M., Z.Z., M.B.R., P.K.R.M., A.P.L.), Duke University School of Medicine, Durham, NC
| | - Michael B Rosamilia
- Department of Pediatrics, Division of Cardiology (J.E.Z., M.E.M.-M., Z.Z., M.B.R., P.K.R.M., A.P.L.), Duke University School of Medicine, Durham, NC
| | - Perathu K R Manivannan
- Department of Pediatrics, Division of Cardiology (J.E.Z., M.E.M.-M., Z.Z., M.B.R., P.K.R.M., A.P.L.), Duke University School of Medicine, Durham, NC
| | - Ricardo Henao
- Department of Electrical and Computer Engineering, Pratt School of Engineering (R.H.), Duke University.,Department of Biostatistics and Bioinformatics (R.H.), Duke University School of Medicine, Durham, NC
| | - Andrew P Landstrom
- Department of Pediatrics, Division of Cardiology (J.E.Z., M.E.M.-M., Z.Z., M.B.R., P.K.R.M., A.P.L.), Duke University School of Medicine, Durham, NC.,Department of Cell Biology (A.P.L.), Duke University School of Medicine, Durham, NC
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12
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Moya-Mendez ME, Ogbonna C, Ezekian JE, Rosamilia MB, Prange L, de la Uz C, Kim JJ, Howard T, Garcia J, Nussbaum R, Truty R, Callis TE, Funk E, Heyes M, Dear GDL, Carboni MP, Idriss SF, Mikati MA, Landstrom AP. ATP1A3-Encoded Sodium-Potassium ATPase Subunit Alpha 3 D801N Variant Is Associated With Shortened QT Interval and Predisposition to Ventricular Fibrillation Preceded by Bradycardia. J Am Heart Assoc 2021; 10:e019887. [PMID: 34459253 PMCID: PMC8649289 DOI: 10.1161/jaha.120.019887] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
Background Pathogenic variation in the ATP1A3‐encoded sodium‐potassium ATPase, ATP1A3, is responsible for alternating hemiplegia of childhood (AHC). Although these patients experience a high rate of sudden unexpected death in epilepsy, the pathophysiologic basis for this risk remains unknown. The objective was to determine the role of ATP1A3 genetic variants on cardiac outcomes as determined by QT and corrected QT (QTc) measurements. Methods and Results We analyzed 12‐lead ECG recordings from 62 patients (male subjects=31, female subjects=31) referred for AHC evaluation. Patients were grouped according to AHC presentation (typical versus atypical), ATP1A3 variant status (positive versus negative), and ATP1A3 variant (D801N versus other variants). Manual remeasurements of QT intervals and QTc calculations were performed by 2 pediatric electrophysiologists. QTc measurements were significantly shorter in patients with positive ATP1A3 variant status (P<0.001) than in patients with genotype‐negative status, and significantly shorter in patients with the ATP1A3‐D801N variant than patients with other variants (P<0.001). The mean QTc for ATP1A3‐D801N was 344.9 milliseconds, which varied little with age, and remained <370 milliseconds throughout adulthood. ATP1A3 genotype status was significantly associated with shortened QTc by multivariant regression analysis. Two patients with the ATP1A3‐D801N variant experienced ventricular fibrillation, resulting in death in 1 patient. Rare variants in ATP1A3 were identified in a large cohort of genotype‐negative patients referred for arrhythmia and sudden unexplained death. Conclusions Patients with AHC who carry the ATP1A3‐D801N variant have significantly shorter QTc intervals and an increased likelihood of experiencing bradycardia associated with life‐threatening arrhythmias. ATP1A3 variants may represent an independent cause of sudden unexplained death. Patients with AHC should be evaluated to identify risk of sudden death.
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Affiliation(s)
- Mary E Moya-Mendez
- Department of Pediatrics Division of Pediatric Cardiology Duke University School of Medicine Durham NC
| | - Chiagoziem Ogbonna
- Department of Pediatrics Division of Pediatric Cardiology Duke University School of Medicine Durham NC
| | - Jordan E Ezekian
- Department of Pediatrics Division of Pediatric Cardiology Duke University School of Medicine Durham NC
| | - Michael B Rosamilia
- Department of Pediatrics Division of Pediatric Cardiology Duke University School of Medicine Durham NC
| | - Lyndsey Prange
- Department of Pediatrics Division of Neurology Duke University School of Medicine Durham NC
| | - Caridad de la Uz
- Department of Pediatrics Division of Cardiology Johns Hopkins School of Medicine Baltimore MD
| | - Jeffrey J Kim
- Department of Pediatrics Section of Cardiology Baylor College of Medicine Houston TX
| | - Taylor Howard
- Department of Pediatrics Section of Cardiology Baylor College of Medicine Houston TX
| | | | | | | | | | - Emily Funk
- Duke University School of NursingAssistant Clinical ProfessorDuke University Durham NC
| | - Matthew Heyes
- Duke University School of NursingAssistant Clinical ProfessorDuke University Durham NC
| | - Guy de Lisle Dear
- Department of Anesthesia Duke University School of Medicine Durham NC
| | - Michael P Carboni
- Department of Pediatrics Division of Pediatric Cardiology Duke University School of Medicine Durham NC
| | - Salim F Idriss
- Department of Pediatrics Division of Pediatric Cardiology Duke University School of Medicine Durham NC
| | - Mohamad A Mikati
- Department of Pediatrics Division of Neurology Duke University School of Medicine Durham NC
| | - Andrew P Landstrom
- Department of Pediatrics Division of Pediatric Cardiology Duke University School of Medicine Durham NC.,Department of Cell Biology Duke University School of Medicine Durham NC
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13
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Moya-Mendez ME, Ogbonna C, Parker L, Ezekian JE, Prange L, La Uz CD, Kim JJ, Howard TS, Funk E, Hayes M, Lisle Dear GD, Carboni MP, Idriss SF, Mikati MA, Landstrom AP. B-PO04-191 ASSOCIATION BETWEEN SHORTENED QT INTERVAL AND BRADYCARDIA WITH THE D801N VARIANT OF ATP1A3 IN PATIENTS WITH ALTERNATING HEMIPLEGIA OF CHILDHOOD. Heart Rhythm 2021. [DOI: 10.1016/j.hrthm.2021.06.883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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14
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Moya-Mendez ME, Mueller DM, Pratt M, Bonner M, Elliott C, Hunanyan A, Kucera G, Bock C, Prange L, Jasien J, Keough K, Shashi V, McDonald M, Mikati MA. Early onset severe ATP1A2 epileptic encephalopathy: Clinical characteristics and underlying mutations. Epilepsy Behav 2021; 116:107732. [PMID: 33493807 PMCID: PMC7940561 DOI: 10.1016/j.yebeh.2020.107732] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 11/09/2020] [Accepted: 12/20/2020] [Indexed: 01/26/2023]
Abstract
BACKGROUND ATP1A2 mutations cause hemiplegic migraine with or without epilepsy or acute reversible encephalopathy. Typical onset is in adulthood or older childhood without subsequent severe long-term developmental impairments. AIM We aimed to describe the manifestations of early onset severe ATP1A2-related epileptic encephalopathy and its underlying mutations in a cohort of seven patients. METHODS A retrospective chart review of a cohort of seven patients was conducted. Response to open-label memantine therapy, used off-label due to its NMDA receptor antagonist effects, was assessed by the Global Rating Scale of Change (GRSC) and Clinical Global Impression Scale of Improvement (CGI-I) methodologies. Molecular modeling was performed using PyMol program. RESULTS Patients (age 2.5-20 years) had symptom onset at an early age (6 days-1 year). Seizures were either focal or generalized. Common features were: drug resistance, recurrent status epilepticus, etc., severe developmental delay with episodes of acute severe encephalopathy often with headaches, dystonias, hemiplegias, seizures, and developmental regression. All had variants predicted to be disease causing (p.Ile293Met, p.Glu1000Lys, c.1017+5G>A, p.Leu809Arg, and 3 patients with p.Met813Lys). Modeling revealed that mutations interfered with ATP1A2 ion binding and translocation sites. Memantine, given to five, was tolerated in all (mean treatment: 2.3 years, range 6 weeks-4.8 years) with some improvements reported in all five. CONCLUSIONS Our observations describe a distinctive clinical profile of seven unrelated probands with early onset severe ATP1A2-related epileptic encephalopathy, provide insights into structure-function relationships of ATP1A2 mutations, and support further studies of NMDAR antagonist therapy in ATP1A2-encephalopathy.
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Affiliation(s)
- Mary E. Moya-Mendez
- Department of Pediatrics, Division of Pediatric Neurology and Developmental Medicine, Duke University, Durham, NC, United States
| | - David M. Mueller
- Center for Genetic Diseases, The Chicago Medical School, Rosalind Franklin University of Medicine and Science, Chicago, IL, United States
| | - Milton Pratt
- Department of Pediatrics, Division of Pediatric Neurology and Developmental Medicine, Duke University, Durham, NC, United States
| | - Melanie Bonner
- Department of Psychiatry, Duke University, Durham, NC, United States
| | - Courtney Elliott
- Department of Pediatrics, Division of Pediatric Neurology and Developmental Medicine, Duke University, Durham, NC, United States
| | - Arsen Hunanyan
- Department of Pediatrics, Division of Pediatric Neurology and Developmental Medicine, Duke University, Durham, NC, United States
| | - Gary Kucera
- Duke Cancer Institute Rodent Cancer Models Shared Resource, Duke University Medical Center, Durham, NC, United States
| | - Cheryl Bock
- Duke Cancer Institute Rodent Cancer Models Shared Resource, Duke University Medical Center, Durham, NC, United States
| | - Lyndsey Prange
- Department of Pediatrics, Division of Pediatric Neurology and Developmental Medicine, Duke University, Durham, NC, United States
| | - Joan Jasien
- Department of Pediatrics, Division of Pediatric Neurology and Developmental Medicine, Duke University, Durham, NC, United States
| | - Karen Keough
- Dell Medical School at the University of Texas, Austin TX, United States
| | - Vandana Shashi
- Dell Medical School at the University of Texas, Austin TX, United States
| | - Marie McDonald
- Dell Medical School at the University of Texas, Austin TX, United States
| | - Mohamad A. Mikati
- Department of Pediatrics, Division of Pediatric Neurology and Developmental Medicine, Duke University, Durham, NC, United States,Department of Neurobiology, Duke University, Durham, NC, United States,Corresponding Author: Mohamad Mikati, MD, Children Health Center, T913J, Duke University Medical Center, 2301 Erwin Road, Durham, NC 27710, Phone: 919-668-4073, Fax: 919-681-8943,
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15
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Moya-Mendez ME, Madden LL, Ruckart KW, Downes KM, Cook JF, Snively BM, Brashear A, Haq IU. Auditory-perceptual voice and speech evaluation in ATP1A3 positive patients. J Clin Neurosci 2020; 81:133-138. [PMID: 33222902 PMCID: PMC7683823 DOI: 10.1016/j.jocn.2020.09.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 07/27/2020] [Accepted: 09/06/2020] [Indexed: 10/23/2022]
Abstract
INTRODUCTION Bulbar symptoms are frequent in patients with rapid-onset dystonia-parkinsonism (RDP). RDP is caused by ATP1A3 mutations, with onset typically within 30 days of stressor exposure. Most patients have impairments in speech (dysarthria) and voice (dysphonia). These have not been quantified. We aimed to formally characterize these in RDP subjects as compared to mutation negative family controls. METHODS We analyzed recordings in 32 RDP subjects (male = 21, female = 11) and 29 mutation negative controls (male = 15, female = 14). Three raters, blinded to mutation status, rated speech and vocal quality. Dysarthria was classified by subtype. Dysphonia was rated via the GRBAS (Grade, Roughness, Breathiness, Asthenia, Strain) scale. We used general neurological exams and the Burke-Fahn-Marsden Dystonia Rating Scale (BFMDRS) to assess dysarthria, dystonia, and speech/swallowing dysfunction. RESULTS The presence of dysarthria was more frequent in RDP subjects compared to controls (72% vs. 17%, p < 0.0001). GRBAS voice ratings were worse in the RDP cohort across nearly all categories. Dysarthria in RDP was associated with concordant cranial nerve 9-11 dysfunction (54%, p = 0.048), speech/swallowing dysfunction (96%, p = 0.0003); and oral dystonia (88%, p = 0.001). CONCLUSIONS Quantitative voice and speech analyses are important in assessing RDP. Subjects frequently experience dysarthria and dysphonia. Dystonia is not the exclusive voice abnormality present in this population. In our analysis, RDP subjects more frequently experienced bulbar symptoms than controls. GRBAS scores are useful in quantifying voice impairment, potentially allowing for better assessments of progression or treatment effects. Future directions include using task-specific diagnostic and perceptual voice evaluation tools to further assess laryngeal dystonia.
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Affiliation(s)
- Mary E Moya-Mendez
- Department of Neurology Duke University School of Medicine Durham, North Carolina, United States
| | - Lyndsay L Madden
- Department of Otolaryngology-Head and Neck Surgery, Wake Forest School of Medicine Winston-Salem, NC, United States
| | - Kathryn W Ruckart
- Department of Otolaryngology-Head and Neck Surgery, Wake Forest School of Medicine Winston-Salem, NC, United States
| | - Karen M Downes
- Department of Otolaryngology-Head and Neck Surgery, Wake Forest School of Medicine Winston-Salem, NC, United States
| | - Jared F Cook
- Department of Psychology, Wake Forest School of Medicine Winston-Salem, NC, United States
| | - Beverly M Snively
- Department of Biostatistics and Data Science, Wake Forest School of Medicine Winston-Salem, NC, United States
| | - Allison Brashear
- Department of Neurology, University of California at Davis, Sacramento, CA, United States
| | - Ihtsham U Haq
- Department of Neurology, Wake Forest School of Medicine Winston-Salem, NC, United States.
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Ruckart KW, Moya-Mendez ME, Nagatsuka M, Barry JL, Siddiqui MS, Madden LL. Comprehensive Evaluation of Voice-Specific Outcomes in Patients With Essential Tremor Before and After Deep Brain Stimulation. J Voice 2020; 36:838-846. [PMID: 33071149 DOI: 10.1016/j.jvoice.2020.09.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 09/11/2020] [Accepted: 09/14/2020] [Indexed: 10/23/2022]
Abstract
OBJECTIVE Deep brain stimulation (DBS) is a treatment for medically refractory essential tremor (ET), but there is a paucity of literature examining the effects of DBS on voice in patients with ET pre-DBS and post-DBS. This study aimed to report a comprehensive evaluation of voice in patients with ET pre-DBS and 6-months post-DBS. STUDY DESIGN Case series. METHODS Five patients receiving DBS for ET underwent voice evaluations pre-DBS and 6-months post-DBS. One patient had concurrent ET of the vocal tract (ETVT). The evaluation included patient-reported, perceptual, acoustic, and phonatory aerodynamic analyses of voice. Voice Handicap Index-10, Grade, Roughness, Breathiness, Asthenia, Strain Scale, perturbation measures, cepstral spectral index of dysphonia, cepstral peak prominence, and mean phonatory airflow measures were also among the data collected. RESULTS Patients with ET presented with minimal changes in perceptual, acoustic, and phonatory aerodynamic parameters. Perceived vocal roughness significantly increased 6-months post-DBS (P = 0.047). The patient with ETVT presented with clinically significant improvement in almost all collected voice parameters 6-months post-DBS. CONCLUSION This is the first study to provide data encompassing auditory perceptual voice analysis, voice-specific patient-reported quality of life measures, acoustic, and phonatory aerodynamic outcomes in patients pre-DBS and 6-months post-DBS for ET. The results of our preliminary study have implications for the use of a comprehensive voice assessment to identify and measure change in voice outcomes in patients with ET and ETVT pre- and postsurgery.
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Affiliation(s)
- Kathryn W Ruckart
- Department of Otolaryngology Head and Neck Surgery, Wake Forest Baptist Medical Center, Winston-Salem, North Carolina.
| | | | - Moeko Nagatsuka
- Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Julia L Barry
- Department of Otolaryngology Head and Neck Surgery, Wake Forest Baptist Medical Center, Winston-Salem, North Carolina
| | - Mustafa S Siddiqui
- Department of Neurology, Wake Forest Baptist Medical Center, Winston-Salem, North Carolina
| | - Lyndsay L Madden
- Department of Otolaryngology Head and Neck Surgery, Wake Forest Baptist Medical Center, Winston-Salem, North Carolina
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