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Table 2 Classification of the included patients according to clinical situation and impact on clinical decision after HRCT results

From: Spectrum of HRCT findings among asymptomatic and recovered COVID-19 patients: how did they impact the clinical decision?

Group of patients: Included patients: No % Clinical decision changes:
Asymptomatic
(Initially screened)
[1] People with positive contact history with proved COVID-19 patients: 30/60 patients (including):
- First degree relatives (17).
- Work colleagues (13).
* N.B: 19/30 patients (63%) had negative prior first PCR results.
50%
28.4%
21.6%
31.7%
Home isolation, medical treatment and PCR testing instead for uncontrolled release. (Repeating PCR for those 19 patients who showed initial negative prior PCR swab tests’ results → Proved positive later).
[2] Health care providers with positive contact history with proved COVID-19 patients: 12/60 patients (including):
- 7 doctors
- 5 nurses.
* N.B: 7/12 patients (58.3%) had negative prior first PCR results.
20%
11.7%
8.3%
11.7%
Home isolation, medical treatment and PCR testing instead of continuing providing health service. (Repeating PCR for those 7 patients who showed negative prior PCR swab tests’ results → Proved positive later).
[3] Dialysis unit: Chest HCRT screening before admission for dialysis. 4/60 patients known with end stage renal disease (ESRD) 6.7% PCR testing, isolated hospitalization and isolated dialysis.
[4] Oncology unit: Chest HRCT screening before admission for receiving chemotherapy. 2/60 patients (including):
- Metastasizing colon cancer.
- Breast cancer.
3.3% PCR testing, isolated hospitalization and delay of chemotherapy cycles.
[5] Emergency unit: Chest HRCT screening before surgery planning. 2/60 patients (including):
- RTA.
- Abdominal exploration.
3.3% * PCR testing and isolated hospitalization with for the patients.
* Full PPE order for the surgery stuff.
[6] Intervention unit: Chest HRCT screening before interventional procedure. 1/60 patient asked for CT guided biopsy 1.7% * PCR testing, isolated hospitalization, and delaying biopsy appointment.
[7] Radiology unit: Chest HRCT screening during or before performing extra-thoracic radiological investigation. 9/60 patients (including):
- CT enterocolonography (5).
- Urgent CT abdomen (3).
- Dorsal spine MRI as metastatic workup for cancer prostate (1).
15%
8.3%
5%
1.7%
* Strict infection control measures for CT and MRI machines.
* PCR testing then home isolation and isolated hospitalization for 3 and 6 patients respectively.
* Full PPE instructions for the surgery stuff required for the three urgent cases.
Asymptomatic (Recovered) Follow up CT after two consecutive negative PCR results for previous proved COVID-19 patients. 60 Patients
* All had unremarkable laboratory tests and normal O2 sat levels.
100% * Whatever the unexpected CT findings or lesions size, clinical decision remain unchanged; no need for re-isolation or re-hospitalization.
* Steroids were prescribed to speed lung recovery.
* Long term follow up for lung fibrosis was advised.