Blood Transfusion Timing After Dialysis Initiation

2017 → 2026. Live query on mi2.
Generated: 2026-09-21 23:14
Total transfusions 2017–2026
1617
First-year share
25 %
404 episodes
First 90 days share
9.7 %
157 episodes
Peak year
2017
253 transfusions
Transfusions per year, by time since dialysis start
Stacked bars — darker red = earlier after dialysis start. A tall bottom section = a transition-to-dialysis problem.
Total transfusions per year
% of transfusions in the first 90 days
Automatic analysis
Total transfusions analysed: 1617. Peak year: 2017 (253 transfusions).
Suggested action: Use this page alongside the anaemia (haemoglobin) page — transfusions are the failure signal of medical anaemia management.
Only 25% of transfusions occurred in the first year — anaemia is well controlled across the transition.
Suggested action: Maintain current first-year anaemia protocol.
Only 9.7% of transfusions occurred in the first 90 days — early anaemia control is strong.
Suggested action: Document and standardise the pre-dialysis anaemia pathway.
Transfusion volume is falling (-55 per year).
Suggested action: Anaemia management is improving. Identify which change (ESA protocol, iron repletion, better dialysis dose) drove it.
First-year transfusions are falling (-39.3 per year).
Suggested action: The transition-to-dialysis pathway is maturing.
Very early transfusions are falling (-12 per year).
Suggested action: Pre-dialysis anaemia care is improving — good news for the transition pathway.
Note: the four sub-ranges (<90, 91-180, 181-270, 271-360) leave small gaps at exactly 90, 180, 270 and 360 days, and a patient receiving multiple transfusions is counted multiple times.
Suggested action: Fine for monitoring. For registry-quality reporting, use half-open ranges (>= x AND < y) and COUNT(DISTINCT ptname).
Clinical reminder: transfusion in a dialysis patient is not a neutral intervention — it causes alloimmunisation, reduces future transplant chances, and is associated with higher mortality.
Suggested action: Treat every transfusion as a trigger for anaemia review, not as the treatment itself.
What this parameter means

Each episode in mi2 is a red-cell transfusion given to a dialysis patient, and datt is the date it happened. Grouping these by how long after dialysis start (SOT) they occur tells us when anaemia is failing: early (first year), late (after one year), or across the whole journey. Transfusions are not a treatment — they are the failure endpoint of anaemia management.

Why it matters
  • Alloimmunisation — reduces future transplant chances and complicates matching.
  • Iron overload — cardiac and hepatic risk, especially with repeated transfusion.
  • Infection risk — transfusion-transmitted infection (small) plus immunomodulation.
  • Higher mortality — transfusion is independently associated with death in every dialysis registry.
  • Marker of care — early transfusions signal late referral, uncontrolled pre-dialysis anaemia, occult bleeding, inflammation or ESA hyporesponse.
Common causes of early (< 90 days) transfusion
  • Late nephrology referral — profound anaemia at presentation
  • Iron deficiency not repleted before start
  • Occult GI bleeding (angiodysplasia, ulcers, malignancy)
  • Chronic inflammation (CRP high) → ESA hyporesponse
  • Severe hyperparathyroidism / marrow fibrosis
  • Undeclared use of myelosuppressive drugs
  • Surgery, access creation or other acute blood loss
Common causes of late (> 1 year) transfusion
  • Progressive ESA hyporesponse from chronic inflammation
  • Access-related bleeding (AVF aneurysm, catheter trauma)
  • Recurrent infection / sepsis
  • Malnutrition and low albumin
  • Marrow suppression from cumulative uraemia
  • Malignancy emerging during dialysis years
Action plan
  1. Set a first-90-day anaemia bundle. Hb, ferritin, TSAT at week 2, 4, 8, 12 after start. Any transfusion in the first 90 days triggers an audit of iron status, GI bleeding and ESA timing.
  2. Pre-dialysis anaemia pathway. Work with referring nephrologists: Hb target 10–12 g/dL, iron repletion before ESA escalation, early treatment of secondary hyperparathyroidism.
  3. Every transfusion is an audit trigger. Build a short review form: indication, Hb before, iron status, ESA dose, inflammation, alternative causes. Feed findings back monthly.
  4. Transplant protection. For every transfused patient, document transplant listing status. Alloimmunisation directly reduces future transplant chances — protect the young and the potentially transplantable.
  5. Investigate occult bleeding. For any unexplained falling Hb, arrange faecal occult blood, upper GI endoscopy if indicated, and colonoscopy in patients over 50.
  6. Track this page against the haemoglobin page. If Hb control improves but transfusions don't fall, the problem is not the average Hb — it is the tail of severely anaemic patients who never reach target.
  7. Benchmark. Compare transfusion episodes per patient-year with your national registry. Most well-run units have 0.1–0.3 per patient-year.
  8. Report the trend. A falling first-90-day share is the single clearest sign that the transition-to-dialysis anaemia pathway is working.
Year-by-year table
Year < 90 d 91–180 d 181–270 d 271–360 d First year (<360) > 360 d Total
2017 22 25 13 16 76 177 253
2018 0 0 0 0 0 0 0
2019 14 15 7 6 42 160 202
2020 26 7 8 9 50 144 194
2021 50 26 6 4 86 143 229
2022 37 20 15 22 94 136 230
2023 8 17 13 16 56 163 219
2024 0 0 0 0 0 109 109
2025 0 0 0 0 0 152 152
2026 0 0 0 0 0 29 29
Total 157 110 62 73 404 1213 1617
Note: sub-ranges leave small boundary gaps at exactly 90/180/270/360 days, and patients receiving multiple transfusions are counted multiple times.
✍️ Author: Ahmed Mohmad Rashyd Musleh Registered Staff Nurse

© 2026 Kidney Disease Clinic – Educational purpose only. Always consult a doctor for medical advice.