Reviewer's report
Title:Difficult colonoscopy score identifies the difficult patients undergoing
unsedated colonoscopy
Version:4Date:5 January 2015
Reviewer: Zoltan Szepes
Reviewer's report:
Strength of the article: prospective study, high number of population, identify
some relevant factors for difficult colonoscopy before the procedure, first time
use of sleep quality factor.
Weakness of the article, Minor Essential Revision:
1. It is not a scoring system, only splitting the population into two group (high risk
and low risk group)
2. Was there any complication of colonoscopy in the investigated population?
3. Is there any potential impact of CO2 insufflation of DCS?
4. Was there any difference between the two DCS group in the bowel preparation
score?
5. There was no influence of previous abdominal or pelvic surgery on DCS. How
the investigated population were the types of surgeries and the diverticulosis,
history of recurrent diverticulitis?
6. Which of the identified 4 independent predictors of prolonged intubation time
had more influenced on DCS?
7. The endoscopic skill is more important than practice and previous number of
examination.
In the senior and junior group was there any significant difference between the
individual investigators regarding the intubation time? What was the statistical
dispersion?
8. What is the main clinical recommendation to identify DCS >1 group? (choice of
sedation or senior investigator e.t.c)
Level of interest: An article of importance in its field
Quality of written English: Acceptable
Statistical review: Yes, but I do not feel adequately qualified to assess the
statistics.
Declaration of competing interests:
I declare that I have no competing interests
Reviewer's report
Title:Difficult colonoscopy score identifies the difficult patients undergoing
unsedated colonoscopy
Version:4Date:5 January 2015
Reviewer: Zoltan Szepes
Reviewer's report:
Strength of the article: prospective study, high number of population, identify
some relevant factors for difficult colonoscopy before the procedure, first time
use of sleep quality factor.
Weakness of the article, Minor Essential Revision:
1. It is not a scoring system, only splitting the population into two group (high risk
and low risk group)
2. Was there any complication of colonoscopy in the investigated population?
3. Is there any potential impact of CO2 insufflation of DCS?
4. Was there any difference between the two DCS group in the bowel preparation
score?
5. There was no influence of previous abdominal or pelvic surgery on DCS. How
the investigated population were the types of surgeries and the diverticulosis,
history of recurrent diverticulitis?
6. Which of the identified 4 independent predictors of prolonged intubation time
had more influenced on DCS?
7. The endoscopic skill is more important than practice and previous number of
examination.
In the senior and junior group was there any significant difference between the
individual investigators regarding the intubation time? What was the statistical
dispersion?
8. What is the main clinical recommendation to identify DCS >1 group? (choice of
sedation or senior investigator e.t.c)
Level of interest: An article of importance in its field
Quality of written English: Acceptable
Statistical review: Yes, but I do not feel adequately qualified to assess the
statistics.
Declaration of competing interests:
I declare that I have no competing interests
Please review this paper.
user
Reviewer's report
Title:Difficult colonoscopy score identifies the difficult patients undergoing
unsedated colonoscopy
Version:4Date:5 January 2015
Reviewer: Zoltan Szepes
Reviewer's report:
Strength of the article: prospective study, high number of population, identify
some relevant factors for difficult colonoscopy before the procedure, first time
use of sleep quality factor.
Weakness of the article, Minor Essential Revision:
1. It is not a scoring system, only splitting the population into two group (high risk
and low risk group)
2. Was there any complication of colonoscopy in the investigated population?
3. Is there any potential impact of CO2 insufflation of DCS?
4. Was there any difference between the two DCS group in the bowel preparation
score?
5. There was no influence of previous abdominal or pelvic surgery on DCS. How
the investigated population were the types of surgeries and the diverticulosis,
history of recurrent diverticulitis?
6. Which of the identified 4 independent predictors of prolonged intubation time
had more influenced on DCS?
7. The endoscopic skill is more important than practice and previous number of
examination.
In the senior and junior group was there any significant difference between the
individual investigators regarding the intubation time? What was the statistical
dispersion?
8. What is the main clinical recommendation to identify DCS >1 group? (choice of
sedation or senior investigator e.t.c)
Level of interest: An article of importance in its field
Quality of written English: Acceptable
Statistical review: Yes, but I do not feel adequately qualified to assess the
statistics.
Declaration of competing interests:
I declare that I have no competing interests
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