This is a legacy content and is all our forum is now taking place on Discord.
16th June – Long-term oncologic outcomes of robotic low anterior resection for rectal cancer: a comparative study with laparoscopic surgery
Quote from Scalpel on 27th May 2016, 1:31 amWelcome to Scalpel’s second journal club! This is a series of events that helps to educate students on how to critique an academic paper, under the careful supervision of a doctor. No experience of assessing papers or being part of a journal club is necessary, and dont worry if you missed our first one! Just come along and learn some skills that will be essential for PEP and your future career!
The paper we will dicuss on the 16th of June is comparing the use of robotics to laparascopy, and it can be accessed using the University’s network / VPN. The link to the paper is below:
http://www.ncbi.nlm.nih.gov/pubmed/24662411
Welcome to Scalpel’s second journal club! This is a series of events that helps to educate students on how to critique an academic paper, under the careful supervision of a doctor. No experience of assessing papers or being part of a journal club is necessary, and dont worry if you missed our first one! Just come along and learn some skills that will be essential for PEP and your future career!
The paper we will dicuss on the 16th of June is comparing the use of robotics to laparascopy, and it can be accessed using the University’s network / VPN. The link to the paper is below:
http://www.ncbi.nlm.nih.gov/pubmed/24662411
Quote from Scalpel on 3rd June 2016, 11:59 pmWe are trying a new discussion room for our 2nd journal club. Please let us know whether you preferred the discussion on the forum or you prefer our new discussion room. Only registered users can access the discussion. Login and then click the link above!
We are trying a new discussion room for our 2nd journal club. Please let us know whether you preferred the discussion on the forum or you prefer our new discussion room. Only registered users can access the discussion. Login and then click the link above!
Quote from Scalpel on 16th June 2016, 9:12 pm
19:00Nick WardHi everyone, thank you for attending our 2nd journal club, the discussion will begin in a few minutes, for now lets begin with some introductions; i’m Nick a 4th year for Salford
19:05Daniel LewisHi everyone, Daniel here, the chair for the journal club
19:09Bradley StoreyThis is the first time trying this new discussion room as in the previous journal club people said that the lack of auto-refresh on the forum was frustrating. Sorry for any technical glitches but will try and resolve any that occur as soon as possible.
19:10dwangHi everyone, it’s Derek here. 4th year from Salford.
19:10Nick WardHi Dan and Derek and thanks Bradley, this new chat seems to be workking much better
19:1052637James, 4th year, new chat format looks better
19:11Sarah McBrinnHi I’m Sarah 3rd year from MRI
19:12Daniel LewisI agree the new forum seems to work much better. I guess we may as well start. What were people’s thoughts on the paper?
19:13Nick WardI thought the paper was overall good, some limitations on the paper but aimed to address a gap in the knowledge available
19:14JudithHi Judith 3rd year Salford
19:15JudithIt was disappointing to see the conclusion reached.
19:16Sarah McBrinnNick what do you think the limitations were ? I’ve never reviewed a paper before and am not quite sure what to look at specifically
19:1752637I think this paper is a lot more thorough than the last one reviewed
19:18dwangI thought they used a very good statistical methods of analysing this paper.
19:18Nick WardI can understand why it happened but I think it wasn’t ideal that people that opted for the robotic surgery have to pay $6000 extra.. does this create a socio-economic bias?
19:20Daniel LewisThat’s a good point Nick, if you look at other surgical trials patients are often randomized on entry into the trial. As you say the determinant in this case was whether perople were willing to pay for the robotic treatment.
19:20Nick WardI thought the stats methods were good and the use of the clavien-dindo classification was good to classify the complications
19:21Daniel LewisDo people think the 5 yr follow up was adequate to comment on long term outcomes?
19:22dwangAgree Nick. they also used ASA grade to classify co-morbidities prior to the surgery giving a good overview of the medical background for those participants.
19:22Sarah McBrinnConsidering the similarity of the outcomes it would be nice to have some more long term survival data
19:23Nick Wardi agree sarah, from the results the follow-up data was 4-80 months, why wasn’t the 80 month data displayed?
19:24Nick Wardand should the 4 month only follow-up have been excluded as this was a study to assess long term outcomes?
19:25Daniel LewisOn your point Derek, it is good that they discussed ASA grades but they were not used to stratify the patients into different groups. This was donw on willingness to pay. Furthermore if you look in detail at the methods patients were told there may be increased benefit from having the robotic approach, something the study didnt support
19:29Daniel LewisDo people think the two procedures were fairly compared?
19:3052637They note that there was no significant difference in ASA grades and stratifying on ASA grades might be too much of a reduction in patient groups
19:30Nick WardI thought it was controversial that the TNM stages varied so much
19:31Sarah McBrinnyea I agree nick comparing stages 1-3 is quite a stretch of severities
19:32dwangPresumably the power of study is good enough, but it would be ideal to have similar number of patients in each group
19:3852637This being a single centre study rules out a lot of the possible stratifications that could have been used
19:39Nick Wardhow do you mean?
19:41Daniel LewisIt being single centre does limit their numbers. It is a pretty common procedure but a limiting factor is the availability of the robotic apparautus.
19:42Daniel LewisWhich brings me on to asking do you think the results of this study would change anyone’s management?
19:43Nick WardI don’t think the results would change my management but I’m not sure if the results would change as robotic skills increase and new techniques are developed?
19:45Sarah McBrinnYes I agree the results surprised me as I assumed robotic would be much better than laparoscopic
19:47Daniel LewisLooking at other papers in the literature there are reports that show better results with robotic surgery in terms of conversions to open surgery,. length of hospital stay and resectin margin
19:47Daniel Lewis 19:4852637If there are benefits of robotic surgery to the surgeon such as reduced risk of accidental injury etc. and advances are being made in robotic surgery then this paper could contribute towards the case for early robotics training
19:49Nick Wardi agree, thanks for sharing that article dan
19:49dwangthanks Dan
19:49Daniel LewisIf you are a practicising surgeon with good experience of robotic techniques and a sense of improved operations and outcomes following robotic procedures I doubt this would change your management. The reeasons being, as you’ve said:
19:49Daniel Lewis– Its single centre
19:50Daniel Lewis-not randomized/ and they showed equivalence not worse outcomes
19:51Daniel LewisIt would have been interesting to have the author’s decision on this as to whether they were going to stop offering the robotic treatment to their patients as a safer more expensive option
19:52Nick Wardit could be useful to offer the robotic approach in select cases
19:52Nick Warde.g. very narrow pelvic cavity
19:53Daniel LewisI suspect the answer would probably be no, and that is a huge weakness of this paper in that one treatment arm is financially incentivised.
19:55Daniel LewisThat’s a good point Nick, and one of the real advantages of robotic surgery is allowing a better view of the pelvic cavity leading to greater surgeon comfort with the anatomy. This is not really assessed by the outcomes in this paper
19:56Nick WardAs we are approaching an hour, has anyone got any final points to make?
19:57dwangCan you also judge whether a paper is good or not based on the number of times being cited?
19:59Nick WardThanks to Dan and everyone for joining us tonight; If everyone leaves their emails i’ll ensure you all receive a certificate
20:01Daniel LewisThank you everyone. in answer to your question Derek, it can act as one judging factor. You also need to look at the Journal quality and its impact factor and whether it is being cited in a positive way. It may that its been mentioned in a review or a letter to the editor but the reviewer is actually saying their methods were flawed etc
20:01dwangThank you Dan.
20:02dwangHere is my email address <email> and the name is Haoyu Wang. Thanks Nick.
20:0352637Thank you Dan and Nick, interesting read. <email>
19:00Nick Ward
Hi everyone, thank you for attending our 2nd journal club, the discussion will begin in a few minutes, for now lets begin with some introductions; i’m Nick a 4th year for Salford |
|
19:05Daniel Lewis
Hi everyone, Daniel here, the chair for the journal club |
|
19:09Bradley Storey
This is the first time trying this new discussion room as in the previous journal club people said that the lack of auto-refresh on the forum was frustrating. Sorry for any technical glitches but will try and resolve any that occur as soon as possible. |
|
19:10dwang
Hi everyone, it’s Derek here. 4th year from Salford. |
|
19:10Nick Ward
Hi Dan and Derek and thanks Bradley, this new chat seems to be workking much better |
|
19:1052637
James, 4th year, new chat format looks better |
|
19:11Sarah McBrinn
Hi I’m Sarah 3rd year from MRI |
|
19:12Daniel Lewis
I agree the new forum seems to work much better. I guess we may as well start. What were people’s thoughts on the paper? |
|
19:13Nick Ward
I thought the paper was overall good, some limitations on the paper but aimed to address a gap in the knowledge available |
|
19:14Judith
Hi Judith 3rd year Salford |
|
19:15Judith
It was disappointing to see the conclusion reached. |
|
19:16Sarah McBrinn
Nick what do you think the limitations were ? I’ve never reviewed a paper before and am not quite sure what to look at specifically |
|
19:1752637
I think this paper is a lot more thorough than the last one reviewed |
|
19:18dwang
I thought they used a very good statistical methods of analysing this paper. |
|
19:18Nick Ward
I can understand why it happened but I think it wasn’t ideal that people that opted for the robotic surgery have to pay $6000 extra.. does this create a socio-economic bias? |
|
19:20Daniel Lewis
That’s a good point Nick, if you look at other surgical trials patients are often randomized on entry into the trial. As you say the determinant in this case was whether perople were willing to pay for the robotic treatment. |
|
19:20Nick Ward
I thought the stats methods were good and the use of the clavien-dindo classification was good to classify the complications |
|
19:21Daniel Lewis
Do people think the 5 yr follow up was adequate to comment on long term outcomes? |
|
19:22dwang
Agree Nick. they also used ASA grade to classify co-morbidities prior to the surgery giving a good overview of the medical background for those participants. |
|
19:22Sarah McBrinn
Considering the similarity of the outcomes it would be nice to have some more long term survival data |
|
19:23Nick Ward
i agree sarah, from the results the follow-up data was 4-80 months, why wasn’t the 80 month data displayed? |
|
19:24Nick Ward
and should the 4 month only follow-up have been excluded as this was a study to assess long term outcomes? |
|
19:25Daniel Lewis
On your point Derek, it is good that they discussed ASA grades but they were not used to stratify the patients into different groups. This was donw on willingness to pay. Furthermore if you look in detail at the methods patients were told there may be increased benefit from having the robotic approach, something the study didnt support |
|
19:29Daniel Lewis
Do people think the two procedures were fairly compared? |
|
19:3052637
They note that there was no significant difference in ASA grades and stratifying on ASA grades might be too much of a reduction in patient groups |
|
19:30Nick Ward
I thought it was controversial that the TNM stages varied so much |
|
19:31Sarah McBrinn
yea I agree nick comparing stages 1-3 is quite a stretch of severities |
|
19:32dwang
Presumably the power of study is good enough, but it would be ideal to have similar number of patients in each group |
|
19:3852637
This being a single centre study rules out a lot of the possible stratifications that could have been used |
|
19:39Nick Ward
how do you mean? |
|
19:41Daniel Lewis
It being single centre does limit their numbers. It is a pretty common procedure but a limiting factor is the availability of the robotic apparautus. |
|
19:42Daniel Lewis
Which brings me on to asking do you think the results of this study would change anyone’s management? |
|
19:43Nick Ward
I don’t think the results would change my management but I’m not sure if the results would change as robotic skills increase and new techniques are developed? |
|
19:45Sarah McBrinn
Yes I agree the results surprised me as I assumed robotic would be much better than laparoscopic |
|
19:47Daniel Lewis
Looking at other papers in the literature there are reports that show better results with robotic surgery in terms of conversions to open surgery,. length of hospital stay and resectin margin |
|
19:47Daniel Lewis
|
|
19:4852637
If there are benefits of robotic surgery to the surgeon such as reduced risk of accidental injury etc. and advances are being made in robotic surgery then this paper could contribute towards the case for early robotics training |
|
19:49Nick Ward
i agree, thanks for sharing that article dan |
|
19:49dwang
thanks Dan |
|
19:49Daniel Lewis
If you are a practicising surgeon with good experience of robotic techniques and a sense of improved operations and outcomes following robotic procedures I doubt this would change your management. The reeasons being, as you’ve said: |
|
19:49Daniel Lewis
– Its single centre |
|
19:50Daniel Lewis
-not randomized/ and they showed equivalence not worse outcomes |
|
19:51Daniel Lewis
It would have been interesting to have the author’s decision on this as to whether they were going to stop offering the robotic treatment to their patients as a safer more expensive option |
|
19:52Nick Ward
it could be useful to offer the robotic approach in select cases |
|
19:52Nick Ward
e.g. very narrow pelvic cavity |
|
19:53Daniel Lewis
I suspect the answer would probably be no, and that is a huge weakness of this paper in that one treatment arm is financially incentivised. |
|
19:55Daniel Lewis
That’s a good point Nick, and one of the real advantages of robotic surgery is allowing a better view of the pelvic cavity leading to greater surgeon comfort with the anatomy. This is not really assessed by the outcomes in this paper |
|
19:56Nick Ward
As we are approaching an hour, has anyone got any final points to make? |
|
19:57dwang
Can you also judge whether a paper is good or not based on the number of times being cited? |
|
19:59Nick Ward
Thanks to Dan and everyone for joining us tonight; If everyone leaves their emails i’ll ensure you all receive a certificate |
|
20:01Daniel Lewis
Thank you everyone. in answer to your question Derek, it can act as one judging factor. You also need to look at the Journal quality and its impact factor and whether it is being cited in a positive way. It may that its been mentioned in a review or a letter to the editor but the reviewer is actually saying their methods were flawed etc |
|
20:01dwang
Thank you Dan. |
|
20:02dwang
Here is my email address <email> and the name is Haoyu Wang. Thanks Nick. |
|
20:0352637
Thank you Dan and Nick, interesting read. <email> |