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over the past decade colon cancer has emerged as the second most deadly and the third most common type of cancer in the world with increasing incidence in Egypt due to life style and diet change. some research showed relation between colon cancer recurrence and advanced tumor staging. To investigators knowledge, this is the first time to be done in Zagazig University.
Data was collected from records in a retrospective cohort study
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| resection of colorectal cancer | Procedure | resection of bowel segment and re-anastmosis or stoma formation |
| Measure | Description | Time Frame |
|---|---|---|
| age | age of patients was obtained from medical records | through study completion, an average of 5 years |
| sex | sex of patients was obtained from medical records | through study completion, an average of 5 years |
| medical disease | co-existing medical disease was obtained from medical records | through study completion, an average of 5 years |
| previous surgery | previous surgical history was obtained from medical records | through study completion, an average of 5 years |
| CEA | value of carcino-embryonic antigen was recorded | through study completion, an average of 5 years |
| tumor grade | tumor grade after resection from pathology report recorded | through study completion, an average of 5 years |
| tumor site | tumor site recorded from operative findings | through study completion, an average of 5 years |
| tumor size | tumor size was measured by length x width in cm from records | through study completion, an average of 5 years |
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Inclusion Criteria:
Exclusion Criteria:
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patient with newely diagnosed colorectal cancer were followed up after surgery to detect if there was a recurrence prospectively, while patients with recurrent colorectal cancer were studied retrospectively to find out factors influencing the recurrence
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| Name | Affiliation | Role |
|---|---|---|
| Reham Zakaria, PhD | faculty of medicine Zagazig University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Zagazig University Hospitals | Zagazig | 44519 | Egypt |
data will be available on demand by contacting the principle investigator
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| ID | Term |
|---|---|
| D015179 | Colorectal Neoplasms |
| D009369 | Neoplasms |
| D012008 | Recurrence |
| ID | Term |
|---|---|
| D007414 | Intestinal Neoplasms |
| D005770 | Gastrointestinal Neoplasms |
| D004067 | Digestive System Neoplasms |
| D009371 | Neoplasms by Site |
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| surgical margins of resected tumor | safety margins were assessed from pathological examination under microscopy and recorded in pathology reports, it can be free surgical margins ( no tumor cells) or positive surgical margins( presence of tumor cells) | through study completion, an average of 5 years |
| neoadjuvant therapy | history of neoadjuvant therapy before surgery from records obtained | through study completion, an average of 5 years |
| adjuvant therapy | history of adjuvant therapy post operative obtained from records | through study completion, an average of 5 years |
| diet | diet and dietary life style from history | through study completion, an average of 5 years |
| occupation | occupation of the patient at time of surgery and if it was changed | through study completion, an average of 5 years |
| family history | history taking of family history of cancer disease | through study completion, an average of 5 years |
| type of surgery(laparoscopic or open) | type of operation was laparoscopic or open surgery obtained from records | through study completion, an average of 5 years |
| soiling by during surgery | by history from records if there was soiling of the field by tumor cells | through study completion, an average of 5 years |
| hand sewen or stappled anastmosis | if there was bowel re-anastmosis after surgery, it was done using a stappler or hand sewing sutures. this was obtained from operative data in patient records | through study completion, an average of 5 years |
| post operative complications | from records; if there were post operative complication like fecal fistula | through study completion, an average of 5 years |
| site of recurrence | site of tumor recurrence was detected | through study completion, an average of 5 years |
| type of resected tumor | type of tumor was recorded from pathology reports | through study completion, an average of 5 years |
| D004066 | Digestive System Diseases |
| D005767 | Gastrointestinal Diseases |
| D003108 | Colonic Diseases |
| D007410 | Intestinal Diseases |
| D012002 | Rectal Diseases |
| D020969 | Disease Attributes |
| D010335 | Pathologic Processes |
| D013568 | Pathological Conditions, Signs and Symptoms |