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Verteporfin photodynamic therapy for neovascular age-related ...

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92 Appendix 11. Overview of Manual of Operations <strong>for</strong> the VPDT CohortStudy1.1 Content of the Manual of OperationsThis manual of operations has been written as a handbook <strong>for</strong> designated providers(DPs) registered with the VPDT Cohort Study. It should be read in conjunction withthe user guide <strong>for</strong> the data transfer software and, if appropriate, the data entry <strong>for</strong>ms.It includes protocols / instructions <strong>for</strong>:• standardised methods <strong>for</strong> undertaking visual assessments,• undertaking fundus photography and angiography,• angiographic definitions,• angiogram submission,• eligibility criteria <strong>for</strong> treatment based on NICE guidance,• guidelines <strong>for</strong> assessments at follow-up and re-treatment decision-making,• treatment delivery.We expect that it will be necessary to clarify some aspects of this manual as thestudy proceeds, because of the difficulty of anticipating all eventualities at the outset.Modifications of the manual will be circulated to all contacts at registered DPs. Themost up-to-date version of the manual will also be available through the website <strong>for</strong>the study:http://www.lshtm.ac.uk/hsru/vpdt1.2 Changes made in this revision1. The Overview section has been revised to include this sub-section, itemising therevisions changes since the last version, and a quick reference sub-section.2. The term “treating centre” has been changed to “designated provider” (DP)throughout, to highlight that centres providing PDT have been designated byLocal Specialist Commissioners.3. Section 4.1: revised to clarify (a) that patients should be consented immediatelywhen they attend the PDT clinic, i.e. irrespective of whether subsequently foundto be eligible or not, (b) that data <strong>for</strong> patients ineligible <strong>for</strong> PDT should be entered

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