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Article ; Online: Reply to Nimeri: Intrathoracic pouch migration in single-anastomosis gastric bypass with and without hiatoplasty: a 3-dimensional-computed tomography volumetry study.

Felsenreich, Daniel M / Arnoldner, Michael A / Jedamzik, Julia / Prager, Gerhard

Surgery for obesity and related diseases : official journal of the American Society for Bariatric Surgery

2023 Volume 19, Issue 4, Page(s) 396–397

MeSH term(s)	Humans ; Gastric Bypass/adverse effects ; Gastric Bypass/methods ; Obesity, Morbid/surgery ; Stomach/surgery ; Tomography, X-Ray Computed
Language	English
Publishing date	2023-01-14
Publishing country	United States
Document type	Letter
ZDB-ID	2274243-8
ISSN	1878-7533 ; 1550-7289
ISSN (online)	1878-7533
ISSN	1550-7289
DOI	10.1016/j.soard.2023.01.006
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Article ; Online: Reply to the Letter to the Editor Concerning Outcome of Sleeve Gastrectomy to Roux-en-Y Gastric Bypass and One-Anastomosis Gastric Bypass.

Felsenreich, Daniel M / Jedamzik, Julia / Langer, Felix B / Prager, Gerhard

Obesity surgery

2022 Volume 32, Issue 8, Page(s) 2793–2794

MeSH term(s)	Gastrectomy ; Gastric Bypass ; Humans ; Obesity, Morbid/surgery ; Weight Loss
Language	English
Publishing date	2022-05-31
Publishing country	United States
Document type	Letter ; Comment
ZDB-ID	1070827-3
ISSN	1708-0428 ; 0960-8923
ISSN (online)	1708-0428
ISSN	0960-8923
DOI	10.1007/s11695-022-06116-7
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Zs.A 3381: Show issues

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Article ; Online: Impact of robotic total mesorectal excision upon pathology metrics in overweight males with low rectal cancer: a pooled analysis of 836 cases.

Gachabayov, Mahir / Lee, Hanjoo / Kajmolli, Agon / Felsenreich, Daniel M / Bergamaschi, Roberto

Updates in surgery

2023 Volume 76, Issue 2, Page(s) 505–512

Abstract: ... rectal cancer) and non-MOL. Overweight was defined as BMI ≥ 25 kg/m ...

Abstract	The aim of this pooled analysis was to evaluate the impact of robotic total mesorectal excision (TME) on pathology metrics in Male Overweight patients with Low rectal cancer (MOL). This was a multicenter retrospective pooled analysis of data. Two groups were defined: MOL (Male, Overweight, Low rectal cancer) and non-MOL. Overweight was defined as BMI ≥ 25 kg/m
MeSH term(s)	Humans ; Male ; Robotic Surgical Procedures ; Retrospective Studies ; Margins of Excision ; Overweight/complications ; Overweight/surgery ; Treatment Outcome ; Rectal Neoplasms/surgery ; Rectal Neoplasms/pathology ; Laparoscopy ; Multicenter Studies as Topic
Language	English
Publishing date	2023-12-26
Publishing country	Italy
Document type	Meta-Analysis ; Journal Article
ZDB-ID	2572692-4
ISSN	2038-3312 ; 2038-131X
ISSN (online)	2038-3312
ISSN	2038-131X
DOI	10.1007/s13304-023-01733-y
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Article ; Online: Inadvertent laparoscopic lavage of perforated colon cancer: a systematic review.

Gachabayov, Mahir / Kajmolli, Agon / Quintero, Luis / Felsenreich, Daniel M / Popa, Dorin E / Ignjatovic, Dejan / Bergamaschi, Roberto

Langenbeck's archives of surgery

2024 Volume 409, Issue 1, Page(s) 35

Abstract: Background: Although laparoscopic lavage for perforated diverticulitis with peritonitis has been grabbing the headlines, it is known that the clinical presentation of peritonitis can also be caused by an underlying perforated carcinoma. The aim of this ... ...

Abstract	Background: Although laparoscopic lavage for perforated diverticulitis with peritonitis has been grabbing the headlines, it is known that the clinical presentation of peritonitis can also be caused by an underlying perforated carcinoma. The aim of this study was to determine the incidence of patients undergoing inadvertent laparoscopic lavage of perforated colon cancer as well as the delay in cancer diagnosis. Methods: The PubMed database was systematically searched to include all studies meeting inclusion criteria. Studies were screened through titles and abstracts with potentially eligible studies undergoing full-text screening. The primary endpoints of this meta-analysis were the rates of perforated colon cancer patients having undergone inadvertent laparoscopic lavage as well as the delay in cancer diagnosis. This was expressed in pooled rate % and 95% confidence intervals. Results: Eleven studies (three randomized, two prospective, six retrospective) totaling 642 patients met inclusion criteria. Eight studies reported how patients were screened for cancer and the number of patients who completed follow-up. The pooled cancer rate was 3.4% (0.9%, 5.8%) with low heterogeneity (Isquare2 = 34.02%) in eight studies. Cancer rates were 8.2% (0%, 3%) (Isquare2 = 58.2%) and 1.7% (0%, 4.5%) (Isquare2 = 0%) in prospective and retrospective studies, respectively. Randomized trials reported a cancer rate of 7.2% (3.1%, 11.2%) with low among-study heterogeneity (Isquare2 = 0%) and a median delay to diagnosis of 2 (1.5-5) months. Conclusions: This systematic review found that 7% of patients undergoing laparoscopic lavage for peritonitis had perforated colon cancer with a delay to diagnosis of up to 5 months.
MeSH term(s)	Humans ; Prospective Studies ; Retrospective Studies ; Therapeutic Irrigation ; Colonic Neoplasms/complications ; Colonic Neoplasms/surgery ; Colonic Diseases ; Intestinal Perforation/epidemiology ; Intestinal Perforation/etiology ; Intestinal Perforation/surgery ; Laparoscopy ; Peritonitis/etiology ; Peritonitis/surgery
Language	English
Publishing date	2024-01-10
Publishing country	Germany
Document type	Systematic Review ; Meta-Analysis ; Journal Article
ZDB-ID	1423681-3
ISSN	1435-2451 ; 1435-2443
ISSN (online)	1435-2451
ISSN	1435-2443
DOI	10.1007/s00423-023-03224-5
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Article ; Online: Bandwagons in colorectal surgery.

Felsenreich, Daniel M / Gachabayov, Mahir / Cianchi, Fabio / Bergamaschi, Roberto

Minerva surgery

2022 Volume 78, Issue 2, Page(s) 194–200

Abstract: Surgery, like other fields of medicine, has not been spared by a number of unfortunate phenomena. Although our perception may point at recent times, some trends can actually be traced back to 1979. Cohen and Rothschild stated that even when medical ... ...

Abstract	Surgery, like other fields of medicine, has not been spared by a number of unfortunate phenomena. Although our perception may point at recent times, some trends can actually be traced back to 1979. Cohen and Rothschild stated that even when medical progress is extraordinary, the path has too often been driven by overwhelming acceptance of popular albeit unproven ideas. These are referred to as bandwagons. Some of such ideas were eventually proven as valid, but more often were abandoned and/or replaced by new bandwagons. In the specific case of colorectal surgery, there are at least five currently ongoing bandwagons: 1) laparoscopic lavage of perforated colon; 2) laparoscopic ventral rectopexy; 3) stapled hemorrhoidopexy, also known as procedure for prolapse and hemorrhoids (PPH); 4) watch and wait; 5) transanal total mesorectal excision (taTME). Preventing bandwagons from taking off requires efforts at different levels: 1) innovators must constrain their self-interest of fame and rather recognize the need for establishing evidence to support their ideas; 2) new treatment modalities must be carefully weighed by sufficiently powered clinical trials prior to been implemented on patients; 3) the media should not mislead patients into the "best" treatment without reliable evidence; 4) physicians should keep in mind that the process of innovation in medicine is slow and disregard the temptation to accept at face value perhaps plausible, yet unproven ideas.
MeSH term(s)	Humans ; Colorectal Surgery ; Proctectomy ; Laparoscopy/methods ; Hemorrhoids/surgery ; Prolapse
Language	English
Publishing date	2022-12-13
Publishing country	Italy
Document type	Journal Article
ZDB-ID	3067899-7
ISSN	2724-5438
ISSN (online)	2724-5438
DOI	10.23736/S2724-5691.22.09794-5
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Article ; Online: Does the mesorectal fat area impact the histopathology metrics of the specimen in males undergoing TME for distal rectal cancer?

Felsenreich, Daniel Moritz / Gachabayov, Mahir / Bergamaschi, Roberto

Updates in surgery

2022 Volume 75, Issue 3, Page(s) 581–588

Abstract: The aim of this study was to evaluate whether the mesorectal fat area (MFA) has an impact on the histopathology metrics of the specimen in male patients undergoing robotic total mesorectal excision (rTME) for cancer in the distal third of the rectum. ... ...

Abstract	The aim of this study was to evaluate whether the mesorectal fat area (MFA) has an impact on the histopathology metrics of the specimen in male patients undergoing robotic total mesorectal excision (rTME) for cancer in the distal third of the rectum. Prospectively collected data of patients undergoing rTME for resectable rectal cancer by five surgeons during 3 years were extracted from the REgistry of Robotic SURgery for RECTal cancer (RESURRECT). MFA was measured at preoperative MRI. Distal rectal cancer was defined as within 6 cm from the anal verge. Specimen metrics included circumferential resection margin (CRM) measured by pathologists as involved if < 1 mm, distal resection margin (DRM) and TME quality. Of 890 patients who underwent rTME for rectal cancer, a subgroup analysis compared 116/581 (33.4%) with MFA > 20 cm
MeSH term(s)	Humans ; Male ; Margins of Excision ; Prospective Studies ; Treatment Outcome ; Retrospective Studies ; Rectal Neoplasms/surgery ; Rectal Neoplasms/pathology ; Rectum/surgery ; Rectum/pathology ; Laparoscopy
Language	English
Publishing date	2022-12-13
Publishing country	Italy
Document type	Multicenter Study ; Journal Article
ZDB-ID	2572692-4
ISSN	2038-3312 ; 2038-131X
ISSN (online)	2038-3312
ISSN	2038-131X
DOI	10.1007/s13304-022-01429-9
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Article ; Online: Reply to the Letter to the Editor Concerning Anti-reflux Mucosectomy (ARMS) in Sleeve Gastrectomy Patients with GERD and Barrett's Esophagus.

Felsenreich, Daniel M / Langer, Felix B / Prager, Gerhard

Obesity surgery

2020 Volume 30, Issue 6, Page(s) 2417–2418

MeSH term(s)	Barrett Esophagus/surgery ; Gastrectomy ; Gastric Bypass ; Gastroesophageal Reflux/etiology ; Humans ; Obesity, Morbid/surgery
Language	English
Publishing date	2020-03-03
Publishing country	United States
Document type	Letter ; Comment
ZDB-ID	1070827-3
ISSN	1708-0428 ; 0960-8923
ISSN (online)	1708-0428
ISSN	0960-8923
DOI	10.1007/s11695-020-04499-z
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Article ; Online: Comments on the Letter to the Editor "The Gastric Migration Crisis in Obesity Surgery".

Felsenreich, Daniel M / Langer, Felix B / Prager, Gerhard

Obesity surgery

2019 Volume 29, Issue 7, Page(s) 2305–2306

Language	English
Publishing date	2019-04-05
Publishing country	United States
Document type	Letter ; Comment
ZDB-ID	1070827-3
ISSN	1708-0428 ; 0960-8923
ISSN (online)	1708-0428
ISSN	0960-8923
DOI	10.1007/s11695-019-03874-9
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Article ; Online: Quilting Suture Technique After Mastectomy: A Meta-Analysis.

Drivas, Eleni / Gachabayov, Mahir / Kajmolli, Agon / Stadlan, Zehavya / Felsenreich, Daniel Moritz / Castaldi, Maria

The American surgeon

2023 Volume 89, Issue 12, Page(s) 6045–6052

Abstract: Background: There is no level 1a evidence testing quilting suture (QS) technique after mastectomy on wound outcomes. The aim of this systematic review and meta-analysis evaluates QS and association with surgical site occurrences as compared to ... ...

Abstract	Background: There is no level 1a evidence testing quilting suture (QS) technique after mastectomy on wound outcomes. The aim of this systematic review and meta-analysis evaluates QS and association with surgical site occurrences as compared to conventional closure (CC) for mastectomy. Methods: MEDLINE, PubMed, and Cochrane Library were systematically searched to include adult women with breast cancer undergoing mastectomy. The primary endpoint was postoperative seroma rate. Secondary endpoints included rates of hematoma, surgical site infection (SSI), and flap necrosis. The Mantel-Haenszel method with random-effects model was used for meta-analysis. Number needed to treat was calculated to assess clinical relevance of statistical findings. Results: Thirteen studies totaling 1748 patients (870 QS and 878 CC) were included. Seroma rates were statistically significantly lower in patients with QS (OR [95%CI] = .32 [.18, .57]; Conclusion: This meta-analysis found that QS was associated with significantly decreased seroma rates when compared to CC in patients undergoing mastectomy for cancer. However, improvement in seroma rates did not translate into a difference in hematoma, SSI, or flap necrosis rates.
MeSH term(s)	Adult ; Humans ; Female ; Mastectomy/methods ; Breast Neoplasms/surgery ; Seroma/epidemiology ; Seroma/etiology ; Surgical Flaps/surgery ; Drainage/methods ; Surgical Wound Infection/epidemiology ; Surgical Wound Infection/surgery ; Suture Techniques ; Hematoma/surgery ; Necrosis/surgery ; Postoperative Complications/epidemiology ; Postoperative Complications/surgery
Language	English
Publishing date	2023-05-05
Publishing country	United States
Document type	Meta-Analysis ; Systematic Review ; Journal Article
ZDB-ID	202465-2
ISSN	1555-9823 ; 0003-1348
ISSN (online)	1555-9823
ISSN	0003-1348
DOI	10.1177/00031348231173995
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Article ; Online: Robotic-assisted surgery training (RAST) program: module 1 of a three-module program. Assessment of patient cart docking skills and educational environment.

Castaldi, Maria Teresa / Palmer, Mathias / Felsenreich, Daniel Moritz / Con, Jorge / Bergamaschi, Roberto

Updates in surgery

2023 Volume 75, Issue 4, Page(s) 825–835

Abstract: There is currently no standardized robotic surgery training program in General Surgery Residency. RAST involves three modules: ergonomics, psychomotor, and procedural. This study aimed to report the results of module 1, which assessed the responsiveness ... ...

Abstract	There is currently no standardized robotic surgery training program in General Surgery Residency. RAST involves three modules: ergonomics, psychomotor, and procedural. This study aimed to report the results of module 1, which assessed the responsiveness of 27 PGY (postgraduate year) 1-5 general surgery residents (GSRs) to simulated patient cart docking, and to evaluate the residents' perception of the educational environment from 2021 to 2022. GSRs prepared with pre-training educational video and multiple-choice questions test (MCQs). Faculty provided one-on-one resident hands-on training and testing. Nine proficiency criteria (deploy cart; boom control; driving cart; docking camera port; targeting anatomy; flex joints; clearance joints; port nozzles; emergency undocking) were assessed with five-point Likert scale. A validated 50-item Dundee Ready Educational Environment Measure (DREEM) inventory was used by GSRs to assess the educational environment. Mean MCQ scores: (90.6 ± 16.1 PGY1), (80.2 ± 18.1PGY2), (91.7 ± 16.5 PGY3) and (PGY4, 86.8 ± 18.1 PGY5) (ANOVA test; p = 0.885). Hands-on docking time decreased at testing when compared to base line: median 17.5 (range 15-20) min vs. 9.5 (range 8-11). Mean hands-on testing score was 4.75 ± 0.29 PGY1; 5.0 ± 0 PGY2 and PGY3, 4.78 ± 0.13 PGY4, and 4.93 ± 0.1 PGY5 (ANOVA test; p = 0.095). No correlation was found between pre-course MCQ score and hands-on training score (Pearson correlation coefficient = - 0.359; p = 0.066). There was no difference in the hands-on scores stratified by PGY. The overall DREEM score was 167.1 ± 16.9 with CAC = 0.908 (excellent internal consistency). Patient cart training impacted the responsiveness of GSRs with 54% docking time reduction and no differences in hands-on testing scores among PGYs with a highly positive perception.
MeSH term(s)	Humans ; Education, Medical, Graduate/methods ; Robotic Surgical Procedures/education ; Internship and Residency ; Clinical Competence ; General Surgery/education
Language	English
Publishing date	2023-03-02
Publishing country	Italy
Document type	Journal Article
ZDB-ID	2572692-4
ISSN	2038-3312 ; 2038-131X
ISSN (online)	2038-3312
ISSN	2038-131X
DOI	10.1007/s13304-023-01485-9
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