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  1. Article ; Online: Perioperative Management in Pulmonary Endarterectomy.

    Jenkins, David P / Martinez, Guillermo / Salaunkey, Kiran / Reddy, S Ashwin / Pepke-Zaba, Joanna

    Seminars in respiratory and critical care medicine

    2023  Volume 44, Issue 6, Page(s) 851–865

    Abstract: Pulmonary endarterectomy (PEA) is the treatment of choice for patients with chronic thromboembolic pulmonary hypertension (PH), provided lesions are proximal enough in the pulmonary vasculature to be surgically accessible and the patient is well enough ... ...

    Abstract Pulmonary endarterectomy (PEA) is the treatment of choice for patients with chronic thromboembolic pulmonary hypertension (PH), provided lesions are proximal enough in the pulmonary vasculature to be surgically accessible and the patient is well enough to benefit from the operation in the longer term. It is a major cardiothoracic operation, requiring specialized techniques and instruments developed over several decades to access and dissect out the intra-arterial fibrotic material. While in-hospital operative mortality is low (<5%), particularly in high-volume centers, careful perioperative management in the operating theater and intensive care is mandatory to balance ventricular performance, fluid balance, ventilation, and coagulation to avoid or treat complications. Reperfusion pulmonary edema, airway hemorrhage, and right ventricular failure are the most problematic complications, often requiring the use of extracorporeal membrane oxygenation to bridge to recovery. Successful PEA has been shown to improve both morbidity and mortality in large registries, with survival >70% at 10 years. For patients not suitable for PEA or with residual PH after PEA, balloon pulmonary angioplasty and/or PH medical therapy may prove beneficial. Here, we describe the indications for PEA, specific surgical and perioperative strategies, postoperative monitoring and management, and approaches for managing residual PH in the long term.
    MeSH term(s) Humans ; Pulmonary Embolism/surgery ; Pulmonary Embolism/complications ; Treatment Outcome ; Lung ; Endarterectomy/adverse effects ; Endarterectomy/methods ; Hypertension, Pulmonary/etiology ; Chronic Disease ; Pulmonary Artery
    Language English
    Publishing date 2023-07-24
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1183617-9
    ISSN 1098-9048 ; 1069-3424
    ISSN (online) 1098-9048
    ISSN 1069-3424
    DOI 10.1055/s-0043-1770123
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Perioperative Management in Pulmonary Endarterectomy

    Jenkins, David P. / Martinez, Guillermo / Salaunkey, Kiran / Reddy, S. Ashwin / Pepke-Zaba, Joanna

    Seminars in Respiratory and Critical Care Medicine

    (Pulmonary Hypertension)

    2023  Volume 44, Issue 06, Page(s) 851–865

    Abstract: Pulmonary endarterectomy (PEA) is the treatment of choice for patients with chronic thromboembolic pulmonary hypertension (PH), provided lesions are proximal enough in the pulmonary vasculature to be surgically accessible and the patient is well enough ... ...

    Series title Pulmonary Hypertension
    Abstract Pulmonary endarterectomy (PEA) is the treatment of choice for patients with chronic thromboembolic pulmonary hypertension (PH), provided lesions are proximal enough in the pulmonary vasculature to be surgically accessible and the patient is well enough to benefit from the operation in the longer term. It is a major cardiothoracic operation, requiring specialized techniques and instruments developed over several decades to access and dissect out the intra-arterial fibrotic material. While in-hospital operative mortality is low (<5%), particularly in high-volume centers, careful perioperative management in the operating theater and intensive care is mandatory to balance ventricular performance, fluid balance, ventilation, and coagulation to avoid or treat complications. Reperfusion pulmonary edema, airway hemorrhage, and right ventricular failure are the most problematic complications, often requiring the use of extracorporeal membrane oxygenation to bridge to recovery. Successful PEA has been shown to improve both morbidity and mortality in large registries, with survival >70% at 10 years. For patients not suitable for PEA or with residual PH after PEA, balloon pulmonary angioplasty and/or PH medical therapy may prove beneficial. Here, we describe the indications for PEA, specific surgical and perioperative strategies, postoperative monitoring and management, and approaches for managing residual PH in the long term.
    Keywords chronic thromboembolic pulmonary hypertension ; pulmonary hypertension ; pulmonary embolism ; pulmonary endarterectomy ; pulmonary thromboendarterectomy
    Language English
    Publishing date 2023-07-24
    Publisher Thieme Medical Publishers, Inc.
    Publishing place Stuttgart ; New York
    Document type Article
    ZDB-ID 1183617-9
    ISSN 1098-9048 ; 1069-3424
    ISSN (online) 1098-9048
    ISSN 1069-3424
    DOI 10.1055/s-0043-1770123
    Database Thieme publisher's database

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  3. Article ; Online: Management of arrhythmias in pulmonary hypertension.

    Reddy, S Ashwin / Nethercott, Sarah L / Khialani, Bharat V / Grace, Andrew A / Martin, Claire A

    Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing

    2021  Volume 62, Issue 2, Page(s) 219–229

    Abstract: Background: Pulmonary hypertension (PH) is a potentially devastating clinical condition with a poor long-term prognosis. Cardiac arrhythmias are frequent in PH, and pulmonary hypertensives are particularly susceptible to the adverse haemodynamic effects ...

    Abstract Background: Pulmonary hypertension (PH) is a potentially devastating clinical condition with a poor long-term prognosis. Cardiac arrhythmias are frequent in PH, and pulmonary hypertensives are particularly susceptible to the adverse haemodynamic effects of heart rhythm disorders. However, arrhythmia management in PH patients can be more challenging than in the general population due to the particular physiological idiosyncrasies associated with the condition. Here, we summarise and appraise the data pertaining to multimodality treatment of cardiac arrhythmias in PH to help refine the management strategy for this vulnerable patient group.
    Results: The majority of our understanding of the safety and effectiveness of different arrhythmia treatments in PH is based on observational and retrospective data. Rhythm control is the overall goal, and for atrial and ventricular tachyarrhythmias, referral for catheter ablation, ideally using electroanatomical mapping technology in specialist centres, is the preferable means of achieving this. Contradictory viewpoints are expounded regarding the safety of beta blocker use in PH, though in three small prospective clinical trials and at least six animal models they appear to be well-tolerated. Nevertheless, amiodarone remains the preferred pharmacological treatment. Direct current cardioversion can be carried out effectively to terminate tachyarrhythmias in both the emergency and elective setting, though mechanistic studies demonstrate a higher recurrence rate in PH patients. Individual reports and series suggest that device implantation may be technically challenging and associated with a higher complication rate due to anatomical distortion and chamber enlargement. Modulation of sympathetic input to the heart appears to reduce arrhythmia vulnerability in canine models of PH, and its clinical application in humans is a worthwhile area of further study.
    Conclusion: Prompt restoration of sinus rhythm improves outcomes in PH, and at present, the most reliable and safest strategy for long-term rhythm control is amiodarone and, where possible, ablation. Reinforcement of the evidence base with randomised prospective trials is necessary. This would be particularly beneficial to clarify the role of atrial fibrillation ablation and the safety and efficacy of beta-blockers. In addition, a more comprehensive assessment of the vulnerability of PH patients to potentially fatal brady- and ventricular tachyarrhythmias may help guide recommendations for provision of primary prevention device therapy.
    MeSH term(s) Amiodarone ; Animals ; Anti-Arrhythmia Agents/therapeutic use ; Atrial Fibrillation/drug therapy ; Dogs ; Humans ; Hypertension, Pulmonary/drug therapy ; Prospective Studies ; Retrospective Studies ; Tachycardia, Ventricular/drug therapy
    Chemical Substances Anti-Arrhythmia Agents ; Amiodarone (N3RQ532IUT)
    Language English
    Publishing date 2021-04-05
    Publishing country Netherlands
    Document type Journal Article ; Review
    ZDB-ID 1329179-8
    ISSN 1572-8595 ; 1383-875X
    ISSN (online) 1572-8595
    ISSN 1383-875X
    DOI 10.1007/s10840-021-00988-y
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Safety, Feasibility and Economic Impact of Same-Day Discharge Following Atrial Fibrillation Ablation.

    Reddy, S Ashwin / Nethercott, Sarah L / Chattopadhyay, Rahul / Heck, Patrick M / Virdee, Mohan S

    Heart, lung & circulation

    2020  Volume 29, Issue 12, Page(s) 1766–1772

    Abstract: Background: The widely accepted model for atrial fibrillation (AF) ablation involves overnight hospital stay post-procedure. Day case AF ablation has been carried out at Royal Papworth Hospital (RPH) since early 2017. We evaluated the feasibility, ... ...

    Abstract Background: The widely accepted model for atrial fibrillation (AF) ablation involves overnight hospital stay post-procedure. Day case AF ablation has been carried out at Royal Papworth Hospital (RPH) since early 2017. We evaluated the feasibility, safety and efficacy of day case AF ablation at RPH.
    Method: This was a retrospective, single-centre study of consecutive AF ablations at RPH between March 2017 and April 2018. Demographic, procedural and outcome data were analysed.
    Results: Over the study period, 452 AF ablations were performed in 448 patients. One hundred and twenty-nine (129) (28.5%) were planned day cases; of these 128 were discharged on the same day. Two hundred and eighty-three (283) procedures resulted in at least one night admission. There was no significant difference in age or sex between the groups. Of note, day case procedures were significantly shorter, more likely to commence in the morning and less likely to require general anaesthetic than overnight stays. Patients listed as day cases also had less far to travel. The overall complication rate was 3.3%, with no significant difference between groups. Follow-up data was available for 448 cases (99.1%). Procedural success rates were comparable between groups. The overall cost saving attributable to providing AF ablation as a day case was £67,200 over the 13-month period.
    Conclusions: Day case AF ablation is efficacious and associated with a low event rate, even without strict standardisation of patient selection or procedural protocols, in a high-volume centre. Substantial reduction in health care expenditure can be achieved with more widespread implementation of outpatient AF ablation.
    MeSH term(s) Atrial Fibrillation/economics ; Atrial Fibrillation/physiopathology ; Atrial Fibrillation/surgery ; Catheter Ablation/methods ; Cost of Illness ; Costs and Cost Analysis ; Electrocardiography, Ambulatory ; Feasibility Studies ; Female ; Follow-Up Studies ; Humans ; Male ; Middle Aged ; Patient Discharge/economics ; Retrospective Studies ; Time Factors ; Treatment Outcome
    Language English
    Publishing date 2020-04-08
    Publishing country Australia
    Document type Journal Article
    ZDB-ID 2020980-0
    ISSN 1444-2892 ; 1443-9506
    ISSN (online) 1444-2892
    ISSN 1443-9506
    DOI 10.1016/j.hlc.2020.02.016
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Coronary artery dissection following radiofrequency ablation for atrial fibrillation: Case report and review of the literature.

    Reddy, S Ashwin / V Khialani, Bharat / Kyranis, Stephen / P Hoole, Stephen

    Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions

    2020  Volume 97, Issue 2, Page(s) 287–291

    Abstract: Coronary artery injury following catheter ablation for cardiac arrhythmias is very rare. We present a case of left circumflex (LCx) coronary artery dissection causing inferoposterior ST-elevation myocardial infarction following radiofrequency (RF) ... ...

    Abstract Coronary artery injury following catheter ablation for cardiac arrhythmias is very rare. We present a case of left circumflex (LCx) coronary artery dissection causing inferoposterior ST-elevation myocardial infarction following radiofrequency (RF) ablation for atrial fibrillation (AF) in a 39-year-old male with no cardiovascular risk factors. This was confirmed on coronary angiography and intracoronary vascular ultrasound (IVUS). The likely etiology is thermal injury during RF ablation for AF, due to the close proximity of the left atrial appendage and left pulmonary veins to the LCx. He was successfully treated with primary percutaneous coronary intervention with good outcome. This is, to our knowledge, the first reported case of proven acute coronary dissection secondary to RF ablation for AF reported in the literature, and highlights the importance of considering this as a mechanism for coronary occlusion in these patients.
    MeSH term(s) Adult ; Atrial Fibrillation/surgery ; Catheter Ablation/adverse effects ; Coronary Vessels/diagnostic imaging ; Coronary Vessels/surgery ; Dissection ; Humans ; Male ; Pulmonary Veins/surgery ; Treatment Outcome
    Language English
    Publishing date 2020-08-05
    Publishing country United States
    Document type Case Reports ; Review
    ZDB-ID 1459995-8
    ISSN 1522-726X ; 1522-1946
    ISSN (online) 1522-726X
    ISSN 1522-1946
    DOI 10.1002/ccd.29183
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Coronary imaging of cardiac allograft vasculopathy predicts current and future deterioration of left ventricular function in patients with orthotopic heart transplantation.

    Reddy, S Ashwin / Khialani, Bharat V / Lambert, Ben / Floré, Vintcent / Brown, Adam J / Pettit, Steve J / West, Nick Ej / Lewis, Clive / Parameshwar, Jayan / Bhagra, Sai / Kydd, Anna / Hoole, Stephen P

    Clinical transplantation

    2021  Volume 36, Issue 2, Page(s) e14523

    Abstract: Background: Intravascular ultrasound (IVUS) and optical coherence tomography (OCT) improve sensitivity of cardiac allograft vasculopathy (CAV) detection compared to invasive coronary angiography (ICA), but their ability to predict clinical events is ... ...

    Abstract Background: Intravascular ultrasound (IVUS) and optical coherence tomography (OCT) improve sensitivity of cardiac allograft vasculopathy (CAV) detection compared to invasive coronary angiography (ICA), but their ability to predict clinical events is unknown. We determined whether severe CAV detected with ICA, IVUS, or OCT correlates with graft function.
    Methods: Comparison of specific vessel parameters between IVUS and OCT on 20 patients attending for angiography 12-24 months post-orthotopic heart transplant. Serial left ventricular ejection fraction (EF) was recorded prospectively.
    Results: Analyzing 55 coronary arteries, OCT and IVUS correlated well for vessel CAV characteristics. A mean intimal thickness (MIT)
    Conclusion: Imaging with OCT correlates well with IVUS for CAV detection. Combined angiography and OCT to screen for CAV within 12-24 months of transplant predicts concurrent and future deterioration in graft function.
    MeSH term(s) Allografts ; Coronary Angiography/methods ; Coronary Artery Disease/diagnostic imaging ; Coronary Artery Disease/etiology ; Heart Diseases ; Heart Transplantation/adverse effects ; Heart Transplantation/methods ; Humans ; Stroke Volume ; Ultrasonography, Interventional ; Ventricular Function, Left
    Language English
    Publishing date 2021-11-09
    Publishing country Denmark
    Document type Journal Article
    ZDB-ID 639001-8
    ISSN 1399-0012 ; 0902-0063
    ISSN (online) 1399-0012
    ISSN 0902-0063
    DOI 10.1111/ctr.14523
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Primary percutaneous coronary intervention in a patient with haemophilia a.

    Reddy, S Ashwin / Hoole, Stephen P / Besser, Martin W

    Case reports in medicine

    2013  Volume 2013, Page(s) 189796

    Abstract: Haemophilia A is a rare genetic condition leading to coagulation factor VIII deficiency and thus predisposing to bleeding diathesis. Due to advances in treatment, life expectancy of haemophilia A sufferers is increasing, and the incidence and prevalence ... ...

    Abstract Haemophilia A is a rare genetic condition leading to coagulation factor VIII deficiency and thus predisposing to bleeding diathesis. Due to advances in treatment, life expectancy of haemophilia A sufferers is increasing, and the incidence and prevalence of coronary artery disease are rising. There have been many reported cases of acute myocardial infarction in such patients, who subsequently undergo elective percutaneous coronary intervention. We present the case of a 55-year-old gentleman presenting with an acute anterior full-thickness myocardial infarction who required emergency primary percutaneous coronary intervention.
    Language English
    Publishing date 2013-12-19
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2502642-2
    ISSN 1687-9635 ; 1687-9627
    ISSN (online) 1687-9635
    ISSN 1687-9627
    DOI 10.1155/2013/189796
    Database MEDical Literature Analysis and Retrieval System OnLINE

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