The objective was to find out the impact of COVID-19 on stage of breast cancer at presentation and its effects on overall onco-surgical management. The investigator carried out this research to see the presenting stage of breast cancer in the participants in this pandemic and correlate its effect on stage of breast cancer and upstaging of disease

This retrospective observational study was conducted at department of surgery PNS Shifa hospital Karachi after obtaining permission from ethical review committee. Participant's data of all operated cases for suspicious lump breast (abnormal findings on ultrasound and mammogram, BIRAD III or above and abnormal FNAC results;C3 or above) from January1,2020 to 31 January 2021 was retrieved. Out of these only those participants were included in whom the diagnosis of breast cancer was confirmed on histo-pathological examination. Participants who had already had their surgery pre covid (December 2019), were excluded. Data were collected on standard pre-designed questionnaire and from paper documents retrieved from patient records. Participant presentation time was calculated as the time interval between the appearance of the first symptoms of breast cancer (day 0) and the date of initial presentation to hospital by patient and consultation for breast symptoms. Time taken for start of treatment was calculated by counting number of days from the first presentation day to hospital until the date when definitive treatment for Carcinoma Breast was initiated (chemo/radio/surgery). Time duration for definitive surgery was counted from the day of first presentation to the hospital till the date surgery was conducted(modified radical mastectomy (MRM)/breast conserving surgery (BCS)/toilet mastectomy).

Presentation 'Delay' was defined as a patient reporting to the hospital for medical advice 30 days after noticing the first possible symptoms of breast cancer while time taken for start of treatment was calculated form time of first presentation to hospital (day 0) till the first day of start of definitive first treatment for breast cancer. The investigator labelled delay in treatment if it was initiated later than 62days .

The questionnaire inquired about the symptoms, date of presentation of the first symptoms, date of first reporting to hospital, reasons for the delayed presentation.

All patients who were admitted and underwent pre anesthesia assessment underwent COVID testing according to the protocol. If the patient turned out COVID positive, their symptoms were noted and the COVID team (infectious disease department) was notified. The quarantine protocol at investigating hospital was, complete isolation for 14 days with one PCR-negative report after completing quarantine, with no residual respiratory symptoms of cough, fever, and shortness of breath. This protocol was followed for all elective breast surgery patients admitted in the hospital. All COVID-positive patients underwent the same treatment protocol as non-COVID patients with regards to management of breast cancer. Patients with early breast cancer (upto stage 2A) underwent modified radical mastectomy/breast conservative surgery first, followed by chemotherapy/radiotherapy, locally advanced cases (stage 2B and above) had neo-adjuvant treatment first followed by surgery, and advanced cases(stage 4/metastatic) underwent palliative treatment.

All the data obtained were analyzed using IBM SPSS 23.0. Descriptive statistics like age were presented as range and means. Categorical data were analyzed using fisher exact test and t-test was applied to numerical data. In all cases, a 95% confidence interval was used and p value <0.05 was considered significant.

Inclusion Criteria:

• diagnosis of breast cancer confirmed on histo-pathological examination

Exclusion Criteria:

• Patients who had already had their surgery pre covid (December 2019)

Breast cancer incidence is more in females as compare to male population

Patient's data of all operated cases for suspicious lump breast (abnormal findings on ultrasound and mammogram, BIRAD III or above and abnormal FNAC results;C3 or above) from January1,2020 to 31 January 2021was retrieved. Out of these only those patients were included in whom the diagnosis of breast cancer was confirmed on histo-pathological examination. Patients who had already had their surgery pre covid (December 2019), were excluded. Data were collected on standard pre-designed questionnaire and from paper documents retrieved from patient records.

All patients who were admitted and underwent pre anesthesia assessment underwent COVID testing according to the protocol.

impact of present covid 19 pandemic on presentation of breast cancer stage and disease upstaging status if patients are covid positive