diff --git a/app/Http/Controllers/System/SyncOrthancController.php b/app/Http/Controllers/System/SyncOrthancController.php
index 8cca62a..4cf4caa 100644
--- a/app/Http/Controllers/System/SyncOrthancController.php
+++ b/app/Http/Controllers/System/SyncOrthancController.php
@@ -3,13 +3,16 @@
 namespace App\Http\Controllers\System;
 
 use App\Http\Controllers\Controller;
+use App\Models\OrthancHost;
 use App\Services\Pacs\Sync\StudiesSync;
 
 class SyncOrthancController extends Controller
 {
     public function __invoke()
     {
-        (new StudiesSync)->execute();
+        foreach (OrthancHost::active()->get() as $host) {
+            (new StudiesSync($host))->execute();
+        }
 
         return redirect()->route('staff.worklist.index');
     }
diff --git a/app/Models/Facility.php b/app/Models/Facility.php
index 03bbcd1..4744b03 100644
--- a/app/Models/Facility.php
+++ b/app/Models/Facility.php
@@ -2,11 +2,14 @@
 
 namespace App\Models;
 
+use App\Models\Traits\Active;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
 
 class Facility extends Model
 {
+    use Active;
+
     public function institute(): BelongsTo
     {
         return $this->belongsTo(Institute::class);
diff --git a/app/Models/Institute.php b/app/Models/Institute.php
index 47a007b..d080d4d 100644
--- a/app/Models/Institute.php
+++ b/app/Models/Institute.php
@@ -2,10 +2,12 @@
 
 namespace App\Models;
 
+use App\Models\Traits\Active;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 
 class Institute extends BaseModel
 {
+    use Active;
     use HasFactory;
 
     protected function casts(): array
diff --git a/app/Models/OrthancHost.php b/app/Models/OrthancHost.php
index b088392..8cb3d74 100644
--- a/app/Models/OrthancHost.php
+++ b/app/Models/OrthancHost.php
@@ -2,16 +2,19 @@
 
 namespace App\Models;
 
+use App\Models\Traits\Active;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
 
 class OrthancHost extends BaseModel
 {
+    use Active;
+
     public function institute(): BelongsTo
     {
         return $this->belongsTo(Institute::class);
     }
 
-    public function facilty(): BelongsTo
+    public function facility(): BelongsTo
     {
         return $this->belongsTo(Facility::class);
     }
diff --git a/app/Models/Traits/Active.php b/app/Models/Traits/Active.php
new file mode 100644
index 0000000..3a4d0b5
--- /dev/null
+++ b/app/Models/Traits/Active.php
@@ -0,0 +1,23 @@
+<?php
+
+namespace App\Models\Traits;
+
+use Illuminate\Database\Eloquent\Builder;
+
+trait Active
+{
+    public function scopeActive(Builder $query): Builder
+    {
+        return $query->where($this->getActiveColumnName(), '=', true);
+    }
+
+    public function scopeInactive(Builder $query): Builder
+    {
+        return $query->where($this->getActiveColumnName(), '=', false);
+    }
+
+    protected function getActiveColumnName(): string
+    {
+        return 'is_active';
+    }
+}
diff --git a/app/Models/User.php b/app/Models/User.php
index 9d5ccdf..5b5df38 100644
--- a/app/Models/User.php
+++ b/app/Models/User.php
@@ -4,6 +4,7 @@
 
 use App\Domain\ACL\Permission;
 use App\Domain\ACL\Role;
+use App\Models\Traits\Active;
 use App\Models\Traits\HashableId;
 use App\Services\UserService;
 use Carbon\Carbon;
@@ -21,11 +22,10 @@
 
 class User extends Authenticatable
 {
+    use Active;
     use HasApiTokens;
-
     /** @use HasFactory<UserFactory> */
     use HasFactory;
-
     use HashableId;
     use HasProfilePhoto;
     use HasRoles;
@@ -77,11 +77,6 @@ class User extends Authenticatable
         'last_seen',
     ];
 
-    public function scopeActive($query)
-    {
-        return $query->where('is_active', true);
-    }
-
     public function isAdmin(): bool
     {
         return cache()->remember('user.is_admin:' . $this->id,
diff --git a/app/Services/Pacs/OrthancRestClient.php b/app/Services/Pacs/OrthancRestClient.php
index 90d5478..a89419b 100644
--- a/app/Services/Pacs/OrthancRestClient.php
+++ b/app/Services/Pacs/OrthancRestClient.php
@@ -2,10 +2,13 @@
 
 namespace App\Services\Pacs;
 
+use App\Models\OrthancHost;
 use GuzzleHttp\Client;
 
 final class OrthancRestClient
 {
+    public function __construct(private readonly OrthancHost $orthancHost) {}
+
     public function getClient(): Client
     {
         return new Client([
diff --git a/app/Services/Pacs/Sync/StudiesSync.php b/app/Services/Pacs/Sync/StudiesSync.php
index f505e6f..1cbea05 100644
--- a/app/Services/Pacs/Sync/StudiesSync.php
+++ b/app/Services/Pacs/Sync/StudiesSync.php
@@ -4,6 +4,7 @@
 
 use App\Domain\Study\Priority;
 use App\Domain\Study\StudyLevelStatus;
+use App\Models\OrthancHost;
 use App\Services\Pacs\DicomUtils;
 use App\Services\Pacs\InstituteMapper;
 use App\Services\Pacs\OrthancRestClient;
@@ -25,13 +26,18 @@ class StudiesSync
 
     private OrthancRestClient $client;
 
-    public function __construct(?OrthancRestClient $client = null)
+    public function __construct(private readonly OrthancHost $orthancHost, ?OrthancRestClient $client = null)
     {
         $this->study_ids = collect();
-        $this->client = $client ?? new OrthancRestClient;
+        $this->client = $client ?? new OrthancRestClient($orthancHost);
         $this->resetQueues();
     }
 
+    public function getOrthancHost(): OrthancHost
+    {
+        return $this->orthancHost;
+    }
+
     public function execute(): void
     {
         app(Pipeline::class)
@@ -61,7 +67,7 @@ public function setStudyIds(array $study_ids): void
         $this->study_ids = collect($study_ids);
     }
 
-    public function resetQueues()
+    public function resetQueues(): void
     {
         $this->insert_queue = collect();
         $this->update_queue = collect();
@@ -107,6 +113,7 @@ public function transformData(mixed $orthanc_src): array
         $patient_name = data_get($orthanc_src, 'PatientMainDicomTags.PatientName');
 
         $study = [
+            'orthanc_host_id' => $this->orthancHost->id,
             'orthanc_uuid' => strtolower($orthanc_src['ID']),
             'institution_name' => $inst_name,
             'institute_id' => $inst_id,
diff --git a/database/migrations/2024_12_27_060234_create_studies_table.php b/database/migrations/2024_12_27_060234_create_studies_table.php
index 6df7070..320ca58 100644
--- a/database/migrations/2024_12_27_060234_create_studies_table.php
+++ b/database/migrations/2024_12_27_060234_create_studies_table.php
@@ -15,7 +15,7 @@ public function up(): void
         Schema::create('studies', function (Blueprint $table) {
             $table->id();
             $table->foreignIdFor(OrthancHost::class)->index();
-            $table->uuid('orthanc_uuid')->index();
+            $table->string('orthanc_uuid')->index();
             $table->boolean('is_archived')->default(false);
             $table->unsignedTinyInteger('priority')->default(Priority::Routine);