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Zeng YH, Calderone A, Rousseau-Saine N, Elmi-Sarabi M, Jarry S, Couture ÉJ, Aldred MP, Dorval JF, Lamarche Y, Miles LF, Beaubien-Souligny W, Denault AY. Right Ventricular Outflow Tract Obstruction in Adults: A Systematic Review and Meta-analysis. CJC Open 2021; 3:1153-1168. [PMID: 34746729 PMCID: PMC8551422 DOI: 10.1016/j.cjco.2021.03.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 03/23/2021] [Indexed: 11/17/2022] Open
Abstract
Background Right ventricular outflow tract obstruction (RVOTO) is a cause of hemodynamic instability that can occur in several situations, including cardiac surgery, lung transplantation, and thoracic surgery, and in critically ill patients. The timely diagnosis of RVOTO is important because it requires specific considerations, including the adverse effects of positive inotropes, and depending on the etiology, the requirement for urgent surgical intervention. Methods The objective of this systematic review and meta-analysis was to determine the prevalence of RVOTO in adult patients, and the distribution of all reported cases by etiology. Results Of 233 available reports, there were 229 case reports or series, and 4 retrospective cohort studies, with one study also reporting a prospective cohort. Of 291 reported cases of RVOTO, 61 (21%) were congenital, 56 (19%) were iatrogenic, and 174 (60%) were neither congenital nor iatrogenic (including intracardiac tumour). The mechanism of RVOTO was an intrinsic obstruction in 169 cases (58%), and an extrinsic obstruction in 122 cases (42%). A mechanical obstruction causing RVOTO was present in 262 cases (90%), and 29 cases of dynamic RVOTO (10%) were reported. In the 5 included cohorts, with a total of 1122 patients, the overall prevalence was estimated to be 4.0% (1%-9%). Conclusions RVOTO, though rare, remains clinically important, and therefore, multicentre studies are warranted to better understand the prevalence, causes, and consequences of RVOTO.
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Affiliation(s)
- Yu Hao Zeng
- Department of Anesthesiology, Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada
| | - Alexander Calderone
- Department of Anesthesiology, Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada
| | - Nicolas Rousseau-Saine
- Department of Anesthesiology, Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada
| | - Mahsa Elmi-Sarabi
- Department of Anesthesiology, Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada
| | - Stéphanie Jarry
- Department of Anesthesiology, Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada
| | - Étienne J Couture
- Department of Anesthesiology and Department of Medicine, Division of Intensive Care Medicine, Quebec Heart & Lung Institute, Quebec, Quebec, Canada
| | - Matthew P Aldred
- Department of Anesthesiology, Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada
| | - Jean-Francois Dorval
- Department of Cardiology, Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada
| | - Yoan Lamarche
- Department of Cardiac Surgery, Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada.,Critical Care Division, Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada
| | - Lachlan F Miles
- Department of Critical Care, The University of Melbourne, Melbourne, Victoria, Australia and Department of Anaesthesia, Austin Health, Melbourne, Australia
| | - William Beaubien-Souligny
- Department of Medicine, Nephrology Division, Centre Hospitalier de l'Université de Montréal, Montreal, Quebec, Canada
| | - André Y Denault
- Department of Anesthesiology, Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada.,Critical Care Division, Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada
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Cheng JW, Russell H, Stewart RD, Thomas J, Backer CL, Mavroudis C. The Role of Tricuspid Valve Surgery in the Late Management of Tetralogy of Fallot. World J Pediatr Congenit Heart Surg 2012; 3:492-8. [DOI: 10.1177/2150135112450037] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
While surgical repair of tetralogy of Fallot (TOF) is generally associated with good early outcomes, late complications affect long-term survival and may require reoperation. Pulmonary regurgitation (PR) and tricuspid regurgitation (TR) may increase the risk of arrhythmias, reduced cardiac function, and sudden death. Tricuspid valve function can be compromised secondarily in the setting of PR or directly as a result of injury or alteration of the valve related to the original TOF repair. This article reviews the etiologic mechanisms, pathophysiological implications, and surgical interventions for TR. Effective management following TOF repair requires consideration of TR to optimize late outcomes.
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Affiliation(s)
- Julie W. Cheng
- Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Hyde Russell
- Department of Surgery, Division of Cardiovascular-Thoracic Surgery, Children’s Memorial Hospital, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Robert D. Stewart
- Department of Congenital Heart Surgery, Cleveland Clinic Children’s Hospital, Cleveland, OH, USA
| | - Jamie Thomas
- Department of Congenital Heart Surgery, Cleveland Clinic Children’s Hospital, Cleveland, OH, USA
| | - Carl L. Backer
- Department of Surgery, Division of Cardiovascular-Thoracic Surgery, Children’s Memorial Hospital, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
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Abstract
BACKGROUND Canadian Cardiovascular Society consensus guidelines recommend that tetralogy of Fallot patients be seen by a congenital cardiologist every 2 years. In Atlantic Canada, tetralogy of Fallot patients are followed up at either tertiary or satellite clinics, which are held in the community and attended by paediatric cardiologists. The effectiveness of satellite clinics in congenital cardiac disease follow-up is unproven. Our objective was to compare patient-reported quality of life measures to determine whether these were impacted by the site of follow-up. METHODS We included patients with tetralogy of Fallot undergoing surgical repair at the Izaak Walton Killam Health Centre from 1 November, 1972 to 31 May, 2002. Quality of life surveys, SF-10 or SF-36v2, were administered to consenting patients. We analysed the subjective health status by patient age and site of follow-up. RESULTS Of the 184 eligible patients, 72 were lost to follow-up. Of the locatable patients, 61% completed the questionnaires. In all, 90% (101 out of 112) were followed up at recommended intervals. Of the 112 (68%) patients, 76 were followed up at a tertiary clinic. These patients were older, with a mean age of 18.4 years versus 14.7 years, and scored higher on the SF-36 physical component summary (52.6 versus 45.7, p = 0.02) compared with satellite clinic patients. The SF-36 mental component summary scores were similar for patients regardless of the site of follow-up. SF-10 physical and psychosocial scores were similar regardless of the site of follow-up. CONCLUSION Tetralogy of Fallot patients followed at either satellite or tertiary clinics have similar subjective health status.
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