Pituitary & hypothalamus

Usefulness of a clinicopathological classification in predicting treatment-related outcomes and multimodal therapeutic approaches in pituitary adenoma patients: retrospective analysis on a Portuguese cohort of 129 patients from a tertiary pituitary center

PituitaryPublished Retrospective cohort study

Authors' conclusion

This clinicopathological classification appears to be a useful grading system to identify PAs that may be more refractory and more often require complex multimodal and multiple therapeutic approaches. Invasive PAs, especially grade 2b tumors, may be more likely to need complex treatment approach, including radiotherapy, and may display higher rates of active disease at last follow-up, despite receiving higher number of treatments.

Study context

Population
Patients with pituitary adenomas operated 2001–2020 at a Portuguese tertiary pituitary centre (84 non-clinically functioning PAs, 32 acromegaly, 9 CD, 2 prolactinomas, 2 thyrotropinomas); 52.7% female, mean age 53.7 ± 15.4 years
Participants
129 patients
Exposure
Clinicopathological grades 2b vs 2a vs 1b vs 1a
  • 1an = 59
  • 1bn = 17
  • 2an = 38
  • 2bn = 15
Outcome
Treatment-related outcomes by grade
Follow-up
Mean 93.1 ± 61.8 months
Methodological detailssingle tertiary pituitary centre
  • Single tertiary pituitary centre

Main finding

As reported in the abstract

Persistent tumor remnant within 1 year after operation (2b-2a-1b-1a)
93-78-18-30%; p < 0.001
Active disease at last follow-up (2b-2a-1b-1a)
40-27-12-10%; p = 0.004
Re-operation (2b-2a-1b-1a)
27-16-0-5%; p = 0.023
Irradiation (2b-2a-1b-1a)
53-38-12-7%; p < 0.001
Multimodal treatment (2b-2a-1b-1a)
67-49-18-25%; p = 0.003
Multiple treatment (2b-2a-1b-1a)
33-27-6-9%; p = 0.017
Mean number of treatments (2b-2a-1b-1a)
2.6-2.1-1.2-1.4; p < 0.001

Observational data: associations, not effects.

Original publication

Usefulness of a clinicopathological classification in predicting treatment-related outcomes and multimodal therapeutic approaches in pituitary adenoma patients: retrospective analysis on a Portuguese cohort of 129 patients from a tertiary pituitary center. Pituitary. Published 18 April 2023. doi:10.1007/s11102-023-01319-2

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