{
  "material_id": "pfa-10",
  "slug": "oliver-segal-pfa-specialist",
  "language": "en",
  "canonical_url": "https://hub.bookimed.com/pulsed-field-ablation/oliver-segal-pfa-specialist/",
  "title": "Dr Oliver Segal: PFA with Affera at The Harley Street Clinic",
  "hero": {
    "text": "Oliver Segal is a London cardiologist and electrophysiologist whose official practice describes current AF catheter ablation using PFA and the Affera/Sphere-9 system. Procedures are at The Harley Street Clinic, Weymouth Street; consultations are at 14 Devonshire Street or by phone/video. His published £350 consultation fee is not the price of ablation.",
    "fact_refs": [
      "fact:pfa:final:segal-device",
      "fact:pfa:exp:segal-access",
      "fact:pfa:exp:consultation-cost"
    ],
    "source_refs": [
      "source:pfa:final:segal-device",
      "src:segal-practice",
      "src:segal"
    ],
    "id": "hero-answer"
  },
  "summary": {
    "text": "Oliver Segal is a London cardiologist and electrophysiologist whose official practice describes current AF catheter ablation using PFA and the Affera/Sphere-9 system. Procedures are at The Harley Street Clinic, Weymouth Street; consultations are at 14 Devonshire Street or by phone/video. His published £350 consultation fee is not the price of ablation.",
    "fact_refs": [
      "fact:pfa:final:segal-device",
      "fact:pfa:exp:segal-access",
      "fact:pfa:exp:consultation-cost"
    ],
    "source_refs": [
      "source:pfa:final:segal-device",
      "src:segal-practice",
      "src:segal"
    ],
    "id": "summary"
  },
  "takeaways": [
    {
      "text": "Affera combines high-density mapping, pulsed-field and radiofrequency energy through Sphere-9; switching energy may help tailor the procedure. It does not prove better results for every patient.",
      "fact_refs": [
        "fact:pfa:final:segal-device"
      ],
      "source_refs": [
        "source:pfa:final:segal-device"
      ],
      "label": "A named device and operator",
      "id": "takeaway-0"
    },
    {
      "text": "The practice serves people with AF and other rhythm problems. Ablation may be considered for symptoms not adequately controlled by medication or other care; assessment determines the plan.",
      "fact_refs": [
        "fact:pfa:final:segal-device"
      ],
      "source_refs": [
        "source:pfa:final:segal-device"
      ],
      "label": "Symptom-focused assessment",
      "id": "takeaway-1"
    },
    {
      "text": "New and follow-up appointments are listed at £350 GBP each, checked 8 October 2026. Hospital and specialist treatment charges are separate; no PFA total is verified.",
      "fact_refs": [
        "fact:pfa:exp:consultation-cost",
        "fact:pfa:provider:hca-payment-components"
      ],
      "source_refs": [
        "src:segal",
        "source:908d38f09193"
      ],
      "label": "Consultation is not treatment cost",
      "id": "takeaway-2"
    }
  ],
  "sections": [
    {
      "id": "identity",
      "heading": "Identity, practice and treatment site",
      "paragraphs": [
        {
          "text": "The practice identifies Dr Oliver Segal as MBBS, MD, FRCP (London), FHRS, specialising in AF and other heart arrhythmias. HCA’s December 2025 announcement names him as a consultant cardiologist and electrophysiologist at The Harley Street Clinic. This is an official practice/institution attribution, not an independent performance rating.",
          "fact_refs": [
            "fact:pfa:exp:segal",
            "fact:pfa:exp:harley"
          ],
          "source_refs": [
            "src:segal-practice",
            "src:hca-pfa"
          ],
          "id": "identity-paragraphs-0"
        },
        {
          "text": "The practice explicitly places operations and procedures at The Harley Street Clinic on Weymouth Street. HCA gives the hospital’s address as 35 Weymouth Street, London W1G 8BJ. The 14 Devonshire Street consultation address and remote consultations are distinct from this procedural site.",
          "fact_refs": [
            "fact:pfa:exp:segal-access",
            "fact:pfa:final:harley-site"
          ],
          "source_refs": [
            "src:segal-practice",
            "source:pfa:final:harley-site"
          ],
          "id": "identity-paragraphs-1"
        }
      ]
    },
    {
      "id": "procedure",
      "heading": "What the Affera programme means in practice",
      "paragraphs": [
        {
          "text": "The current AF-ablation page says Segal conducts AF catheter ablations using PFA. Affera/Sphere-9 allows mapping, ablation and validation with a single catheter and can also deliver radiofrequency energy if needed. PFA delivers electrical pulses through a catheter introduced through a vein at the top of the leg; the practice describes general anaesthesia.",
          "fact_refs": [
            "fact:pfa:final:segal-device"
          ],
          "source_refs": [
            "source:pfa:final:segal-device"
          ],
          "id": "procedure-paragraphs-0"
        },
        {
          "text": "Potential advantages include less impact on nearby critical structures and a shorter procedure. These are practical technology features and institutional descriptions, not proof of a higher personal cure rate. Bruising, bleeding, fluid around the heart and stroke remain possible; ablation can need repeating.",
          "fact_refs": [
            "fact:pfa:final:segal-device",
            "fact:pfa:compose:risks"
          ],
          "source_refs": [
            "source:pfa:final:segal-device",
            "source:70d0511f82f6"
          ],
          "id": "procedure-paragraphs-1"
        },
        {
          "text": "The practice treats AF and other heart-rhythm disorders and describes ablation for life-limiting symptoms not successfully managed with medication or other approaches. Its broader list of arrhythmias is not proof that PFA is indicated for every listed condition.",
          "fact_refs": [
            "fact:pfa:final:segal-device"
          ],
          "source_refs": [
            "source:pfa:final:segal-device"
          ],
          "id": "procedure-paragraphs-2"
        }
      ]
    },
    {
      "id": "clinical-assessment",
      "heading": "How assessment starts",
      "paragraphs": [
        {
          "text": "Contact the practice on 020 3553 9370 or use the official consultation page. New and follow-up visits are scheduled for 30 minutes. Bring previous ECGs, test results and referral letters if available. Insured patients are asked to obtain a pre-authorisation code and establish coverage and any shortfall before attending.",
          "fact_refs": [
            "fact:pfa:final:segal-consult",
            "fact:pfa:exp:segal-access"
          ],
          "source_refs": [
            "source:pfa:final:segal-consult",
            "src:segal-practice"
          ],
          "id": "clinical-assessment-paragraphs-0"
        },
        {
          "text": "Initial consultations may be by phone or video for people further away or with accessibility concerns. The treating doctor uses the assessment and tests to recommend a plan. No appointment slot, personal PFA volume or individual suitability has been verified for this guide.",
          "fact_refs": [
            "fact:pfa:exp:segal-access",
            "fact:pfa:final:segal-device"
          ],
          "source_refs": [
            "src:segal-practice",
            "source:pfa:final:segal-device"
          ],
          "id": "clinical-assessment-paragraphs-1"
        }
      ]
    },
    {
      "id": "evidence",
      "heading": "Evidence relevant to the device—not a personal success rate",
      "paragraphs": [
        {
          "text": "The HCA programme announcement supports the actual Affera service and named clinician link. ADVENT is a primary randomized publication relevant to the wider PFA choice, but it studied FARAPULSE—not Affera—in drug-refractory paroxysmal AF. Its outcomes must not be presented as Segal’s or Harley Street’s results. No clinician-authored Affera outcome publication was established in this bounded source review.",
          "fact_refs": [
            "fact:pfa:exp:harley",
            "fact:pfa:c12",
            "fact:pfa:c2"
          ],
          "source_refs": [
            "src:hca-pfa",
            "source:d1efd743478e",
            "source:c2b1a75334d9"
          ],
          "id": "evidence-paragraphs-0"
        }
      ]
    },
    {
      "id": "cost",
      "heading": "What the £350 fee covers",
      "paragraphs": [
        {
          "text": "Segal’s HCA profile lists a £350 GBP new appointment and a £350 GBP follow-up appointment, checked 8 October 2026, without a stated expiry. These are consultation fees. HCA’s policy says specialist consultation and treatment fees are separate from hospital charges and settled directly with the consultant. An individual PFA estimate is still required; no all-in ablation price is published in these records.",
          "fact_refs": [
            "fact:pfa:exp:consultation-cost",
            "fact:pfa:provider:hca-payment-components"
          ],
          "source_refs": [
            "src:segal",
            "source:908d38f09193"
          ],
          "id": "cost-paragraphs-0"
        }
      ]
    },
    {
      "id": "aftercare",
      "heading": "Aftercare through the practice",
      "paragraphs": [
        {
          "text": "For Segal’s practice, the published AF-ablation aftercare route includes monitoring during recovery and periodic heart monitors and ECGs if AF does not recur after medication withdrawal. His consultations page offers 30-minute follow-up visits; the practice appointment number is 020 3553 9370. This is general AF-ablation and practice information, not a fixed PFA-specific schedule or confirmation of remote postoperative visits. Medication withdrawal must follow the treating team’s current plan, not be inferred from this description.",
          "fact_refs": [
            "fact:pfa:final:segal-care",
            "fact:pfa:final:segal-consult",
            "fact:pfa:exp:segal-access"
          ],
          "source_refs": [
            "source:pfa:final:segal-care",
            "source:pfa:final:segal-consult",
            "src:segal-practice"
          ],
          "id": "aftercare-paragraphs-0"
        },
        {
          "text": "HCA lists an intensive care unit at The Harley Street Clinic. The reviewed sources do not specify the patient’s out-of-hours PFA contact or transfer protocol. Those remain individual discharge details, not a promise made by the appointment line. Do not stop anticoagulants or other prescribed medicines based on this profile.",
          "fact_refs": [
            "fact:pfa:final:harley-site",
            "fact:pfa:final:segal-care"
          ],
          "source_refs": [
            "source:pfa:final:harley-site",
            "source:pfa:final:segal-care"
          ],
          "id": "aftercare-paragraphs-1"
        }
      ]
    },
    {
      "id": "photo",
      "heading": "Official portrait and media",
      "paragraphs": [
        {
          "text": "An official portrait is available on Oliver Segal’s practice website, linked below. The practice website provides the portrait attribution. No portrait is reproduced on this page.",
          "fact_refs": [
            "fact:pfa:exp:segal"
          ],
          "source_refs": [
            "src:segal-practice"
          ],
          "id": "photo-paragraphs-0"
        }
      ]
    }
  ],
  "providers": {},
  "sources": [
    {
      "id": "source:pfa:final:segal-device",
      "url": "https://www.oliversegal.com/treatments/af-ablation",
      "title": "Oliver Segal: current AF ablation practice and Affera"
    },
    {
      "id": "src:segal-practice",
      "url": "https://www.oliversegal.com/",
      "title": "www.oliversegal.com — "
    },
    {
      "id": "src:segal",
      "url": "https://www.hcahealthcare.co.uk/finder/specialists/dr-oliver-segal",
      "title": "www.hcahealthcare.co.uk — dr-oliver-segal"
    },
    {
      "id": "source:908d38f09193",
      "url": "https://www.hcahealthcare.co.uk/paying-for-medical-treatment",
      "title": "HCA: payment policy and self-pay estimates"
    },
    {
      "id": "src:hca-pfa",
      "url": "https://www.hcahealthcare.co.uk/about-us/news-and-press-releases/hca-uk-becomes-first-and-only-independent-healthcare-provider-to-introduce-medtronics-affera",
      "title": "www.hcahealthcare.co.uk — hca-uk-becomes-first-and-only-independent-healthcare-provider-to-introduce-medtronics-affera"
    },
    {
      "id": "source:pfa:final:harley-site",
      "url": "https://www.hcahealthcare.co.uk/locations/hospitals/the-harley-street-clinic",
      "title": "HCA: The Harley Street Clinic, official hospital location"
    },
    {
      "id": "source:70d0511f82f6",
      "url": "https://my.clevelandclinic.org/health/treatments/pulsed-field-ablation",
      "title": "Cleveland Clinic: pulsed field ablation, recovery and precautions"
    },
    {
      "id": "source:pfa:final:segal-consult",
      "url": "https://www.oliversegal.com/consultations",
      "title": "Oliver Segal: consultations and follow-up appointments"
    },
    {
      "id": "source:d1efd743478e",
      "url": "https://clinicaltrials.gov/api/v2/studies/NCT04612244",
      "title": "ClinicalTrials.gov NCT04612244: ADVENT protocol and reported results"
    },
    {
      "id": "source:c2b1a75334d9",
      "url": "https://pubmed.ncbi.nlm.nih.gov/37634148/",
      "title": "ADVENT (2023): randomized PFA versus pooled thermal ablation — primary abstract"
    },
    {
      "id": "source:pfa:final:segal-care",
      "url": "https://www.oliversegal.com/treatments/af-ablation",
      "title": "Oliver Segal: AF ablation and general AF-ablation follow-up"
    }
  ],
  "cta": {
    "heading": "Coordinate an electrophysiology assessment",
    "body": "Bookimed can help coordinate a treatment programme or second opinion. The treating team decides suitability, device, cost and appointment availability.",
    "label": "Request assessment coordination",
    "sticky_text": "Plan a source-informed assessment",
    "url": "https://us-uk.bookimed.com/order-create/question-about-medical-entity/?illnessId=150&type=messenger-priority&lref=eyJwYWdlVVJMIjoiaHR0cHM6Ly9odWIuYm9va2ltZWQuY29tL3B1bHNlZC1maWVsZC1hYmxhdGlvbi9vbGl2ZXItc2VnYWwtcGZhLXNwZWNpYWxpc3QvIiwidG9waWMiOiJEciBPbGl2ZXIgU2VnYWw6IFBGQSB3aXRoIEFmZmVyYSBhdCBUaGUgSGFybGV5IFN0cmVldCBDbGluaWMiLCJpbnRlbnQiOiJEciBPbGl2ZXIgU2VnYWw6IFBGQSB3aXRoIEFmZmVyYSBhdCBUaGUgSGFybGV5IFN0cmVldCBDbGluaWMifQ%3D%3D&utm_source=bookimed_hub&utm_medium=referral&utm_campaign=pfa_learning&button=pfa-10_assessment_sticky",
    "description": "Bookimed can help coordinate an assessment. Provider listings do not guarantee availability through Bookimed or an individual treatment price."
  },
  "date_label": "Created",
  "evidence_date": "2026-10-08",
  "relations": [
    {
      "label": "Paroxysmal AF after medication fails",
      "url": "https://hub.bookimed.com/pulsed-field-ablation/paroxysmal-af-after-medication-fails/",
      "group": "Understanding AF and treatment choice"
    },
    {
      "label": "Pulsed field ablation: how treatment works",
      "url": "https://hub.bookimed.com/pulsed-field-ablation/",
      "group": "Understanding AF and treatment choice"
    },
    {
      "label": "PFA compared with radiofrequency and cryoballoon",
      "url": "https://hub.bookimed.com/pulsed-field-ablation/pfa-vs-radiofrequency-cryoballoon/",
      "group": "Understanding AF and treatment choice"
    },
    {
      "label": "PFA for persistent and paroxysmal AF",
      "url": "https://hub.bookimed.com/pulsed-field-ablation/pfa-persistent-vs-paroxysmal-af/",
      "group": "Outcomes and care"
    },
    {
      "label": "PFA safety and serious complications",
      "url": "https://hub.bookimed.com/pulsed-field-ablation/pfa-safety-serious-complications/",
      "group": "Outcomes and care"
    },
    {
      "label": "After PFA: monitoring, medicines and travel",
      "url": "https://hub.bookimed.com/pulsed-field-ablation/after-pfa-monitoring-medicines-travel/",
      "group": "Outcomes and care"
    },
    {
      "label": "PFA costs and an individual estimate",
      "url": "https://hub.bookimed.com/pulsed-field-ablation/pfa-cost-individual-estimate/",
      "group": "Planning and providers"
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    {
      "label": "Choosing a PFA centre",
      "url": "https://hub.bookimed.com/pulsed-field-ablation/choosing-pfa-centre/",
      "group": "Planning and providers"
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    {
      "label": "Cleveland Clinic PFA programme",
      "url": "https://hub.bookimed.com/pulsed-field-ablation/cleveland-clinic-pfa-programme/",
      "group": "Planning and providers"
    },
    {
      "label": "Dr Oliver Segal: PFA specialist",
      "url": "https://hub.bookimed.com/pulsed-field-ablation/oliver-segal-pfa-specialist/",
      "group": "Planning and providers"
    }
  ],
  "footer_text": "This information supports, but does not replace, an individual electrophysiology assessment. Do not change prescribed treatment without your care team.",
  "topic_navigation": {
    "id": "pfa-topic-navigation",
    "heading": "Explore AF and pulsed field ablation",
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}