diff --git a/app/queries/event_procedures/by_patient_query.rb b/app/queries/event_procedures/by_patient_query.rb
index c17df3f..00eae98 100644
--- a/app/queries/event_procedures/by_patient_query.rb
+++ b/app/queries/event_procedures/by_patient_query.rb
@@ -10,7 +10,7 @@ def initialize(patient_name:, relation: EventProcedure)
     end
 
     def call
-      relation.joins(:patient).where("patients.name ILIKE ?", "%#{patient_name}%")
+      relation.joins(:patient).where("unaccent(patients.name) ILIKE unaccent(?)", "%#{patient_name}%")
     end
   end
 end
diff --git a/db/migrate/20260312000000_enable_unaccent_extension.rb b/db/migrate/20260312000000_enable_unaccent_extension.rb
new file mode 100644
index 0000000..80c588a
--- /dev/null
+++ b/db/migrate/20260312000000_enable_unaccent_extension.rb
@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+class EnableUnaccentExtension < ActiveRecord::Migration[7.1]
+  def change
+    enable_extension "unaccent"
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index bfc5525..d556783 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,10 +10,11 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.1].define(version: 2025_12_20_153000) do
+ActiveRecord::Schema[7.1].define(version: 2026_03_12_000000) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "citext"
   enable_extension "plpgsql"
+  enable_extension "unaccent"
 
   create_table "cbhpm_procedures", force: :cascade do |t|
     t.bigint "cbhpm_id", null: false
diff --git a/spec/queries/event_procedures/by_patient_query_spec.rb b/spec/queries/event_procedures/by_patient_query_spec.rb
index 029fce6..96bbf74 100644
--- a/spec/queries/event_procedures/by_patient_query_spec.rb
+++ b/spec/queries/event_procedures/by_patient_query_spec.rb
@@ -26,6 +26,16 @@
 
         expect(query).to contain_exactly(ep)
       end
+
+      it "performs accent-insensitive matching" do
+        user = create(:user)
+        patient = create(:patient, name: "João Silva", user: user)
+        ep = create(:event_procedure, user: user, patient: patient)
+
+        query = described_class.call(patient_name: "Joao")
+
+        expect(query).to contain_exactly(ep)
+      end
     end
 
     context "when patient name does not match any patient" do