Page 6 - RVC Clinical Connections - Spring 2025

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Page 6 - RVC Clinical Connections - Spring 2025
P. 6

RVC RESEARCH    STUDY    VETERINARY SERVICES       RVC.AC.UK
         Chemotherapy
        A WEEK IN THE CHEMOTHERAPY ROOM

        The Chemotherapy Team

          n the 16 years since the Oncology Service                              Before each visit, Mathilda received
          established a dedicated chemotherapy                                  gabapentin orally at home two hours before
        I treatment centre, the team has helped                                 her appointment and topical anaesthetic
        to treat many cats and dogs with cancer.                                cream was applied over her vein, 30 minutes
        The number of cases coming through has                                  before blood sampling.  This combination
        increased year-on-year since the centre                                 allowed for smooth venepuncture, without
        was established.                                                        the need for further sedations and a longer
          In December 2024, the team moved into                                 hospital visit.
        a new chemotherapy treatment room, which                                 Mathilda  continues  to  receive  oral
        enables even more animals to be treated                                 chlorambucil at home, given by her owner,
        and cared for in a comfortable, relaxed                                 and  requires  a  check-up  and  blood  test
        environment.                                                            every 6-8 weeks at her local practice.
          Chemotherapy drugs can also be used
        to treat other diseases, so in addition to
        animals under the care of the Oncology
        Service, some patients from the Neurology
        Service also benefit from treatments in the
        purposely designed new area.
          There are typically between 20-25 dogs   Mathilda
        and  cats  in  total  having  chemotherapy
        delivered by the Oncology and Neurology   Monday
        Services in any given week. We share a   Mathilda,  an  11-year-old  cat,  initially
        small selection of cases treated and cared   presented to the Emergency and Critical
        for across a working week below.    Care Service for further investigations into
                                            a marked hyperglobulinaemia, anaemia
                                            and lethargy. Following extensive diagnostic
           Benefits of the new room         testing, Mathilda was diagnosed with
                                            multiple myeloma (MM).               Mathilda relaxing at home
           A quiet space for treatment: The   MM is a systemic proliferation of malignant
           new room offers a calm environment   plasma  cells  or  their  precursors.  The   Tuesday
           away from the busy hospital, ensuring   treatment of MM is systemic chemotherapy,   Alan  is  a  seven-year-old  miniature
           pets feel more comfortable and   in  cats  usually  with  cyclophosphamide   dachshund. Alan’s family always wanted a
           relaxed during treatment.        (administered once every 2-3 weeks)   dog named Alan and so she was named
                                            combined with prednisolone. Most cats   accordingly, despite being female.
           Reduced infection risks: Since   (50%–80%)   respond   favourably   to   She initially presented to the RVC with
           chemotherapy  patients  often  have   chemotherapy, although the durability   a six-week history of hyporexia, polyuria-
           weakened immune systems, keeping   of  response  tends  to  be  shorter  when   polydipsia, weight loss (2 kg), snoring,
           them in a dedicated space lowers the   compared  to  dogs,  with  median  survival   difficulty  in  swallowing,  lethargy  and
           risk of exposure to other areas of the   times (MST) reported as 4-13 months.  vomiting.
           hospital and conditions.           At  time  of  diagnosis,  Mathilda’s  Clinical  examination  revealed
                                            globulin count was raised (74.7g/L), after   pyrexia, enlarged tonsils and peripheral
           Helping more  animals:  With  the   commencing treatment, her disease went   lymphadenopathy.  Following  extensive
           extra space, the oncology team can   into  remission,  and  her  globulins  returned   diagnostic testing,  Alan was diagnosed
           treat more patients.             to normal within a month. Unfortunately her   with intermediate-sized  T-cell peripheral
                                            remission was short, as six weeks later her   nodal lymphoma, stage  V (circulating
           Improved  welfare:  Separate  rooms   disease progressed so her chemotherapy   neoplastic  lymphocytes),  substage  b,  with
           for dogs and cats enhances the   was  changed  to  melphalan,  but  due  to   paraneoplastic hypercalcemia.
           wellbeing of all our patients.   persistent neutropenia, Mathilda’s treatment   Alan was treated with a modified LOPP
                                            was  again  switched  to  chlorambucil.  She   protocol (vincristine, lomustine, procarbazine
           Helping owners: Pets now have a   has been in remission since.       and prednisolone) and went into complete
           quiet room to rest in while waiting to be   To facilitate treatments, Mathilda initially   remission. After five months, chemotherapy
           picked up, providing greater flexibility   required intra-muscular sedation for her   had to be discontinued as she developed
           and peace of mind for clients.   visits. However, in time, and with her owners   persistent thrombocytopaenia as a side
                                            help, the team found a method that suited   effect, which later resolved.
                                            her better.





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