Title: The effect of cardiovascular disease on the perioperative period of radical surgery in
elderly rectal cancer
Version: 2 Date: 12 Apr 2024
Reviewer's report:
1. Introduction
- Please revise the second to the last sentence in the 1st paragraph "However, elderly patients..."
This sentence  can be improved in the context of grammar.
2. Introduction
- Please revise the 2nd paragraph. There is redundancy in some wording especially in the second
sentence. Grammar can be improved.
3. Materials and methods (Diagnosis and treatment)
- Other cardiovascular diseases were mentioned. Does this include AF and other histories of
cardiac surgeries e.g. valve replacement,  etc.
4. Results
- Please improve the sentences when you are comparing the significant differences before PSM
i.e. in terms of preoperative albumin level
-  Comorbidities were mentioned quite often. What are these comorbidities that strongly affected
the  differences in both cohort.
Title: The effect of cardiovascular disease on the perioperative period of radical surgery in
elderly rectal cancer
Version: 2 Date: 12 Apr 2024
Reviewer's report:
1. Introduction
- Please revise the second to the last sentence in the 1st paragraph "However, elderly patients..."
This sentence  can be improved in the context of grammar.
2. Introduction
- Please revise the 2nd paragraph. There is redundancy in some wording especially in the second
sentence. Grammar can be improved.
3. Materials and methods (Diagnosis and treatment)
- Other cardiovascular diseases were mentioned. Does this include AF and other histories of
cardiac surgeries e.g. valve replacement,  etc.
4. Results
- Please improve the sentences when you are comparing the significant differences before PSM
i.e. in terms of preoperative albumin level
-  Comorbidities were mentioned quite often. What are these comorbidities that strongly affected
the  differences in both cohort.
Please review this paper.
user
Title: The effect of cardiovascular disease on the perioperative period of radical surgery in
elderly rectal cancer
Version: 2 Date: 12 Apr 2024
Reviewer's report:
1. Introduction
- Please revise the second to the last sentence in the 1st paragraph "However, elderly patients..."
This sentence  can be improved in the context of grammar.
2. Introduction
- Please revise the 2nd paragraph. There is redundancy in some wording especially in the second
sentence. Grammar can be improved.
3. Materials and methods (Diagnosis and treatment)
- Other cardiovascular diseases were mentioned. Does this include AF and other histories of
cardiac surgeries e.g. valve replacement,  etc.
4. Results
- Please improve the sentences when you are comparing the significant differences before PSM
i.e. in terms of preoperative albumin level
-  Comorbidities were mentioned quite often. What are these comorbidities that strongly affected
the  differences in both cohort.
assistant