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  1. Article ; Online: Robotic beyond total mesorectal excision for locally advanced rectal cancers: Perioperative and oncological outcomes from a multicentre case series.

    Khan, Jim S / Piozzi, Guglielmo Niccolò / Rouanet, Philippe / Saklani, Avanish / Ozben, Volkan / Neary, Paul / Coyne, Peter / Kim, Seon Hahn / Garcia-Aguilar, Julio

    European journal of surgical oncology : the journal of the European Society of Surgical Oncology and the British Association of Surgical Oncology

    2024  Volume 50, Issue 6, Page(s) 108308

    Abstract: Background: Around 20% of rectal tumors are locally advanced with invasion into adjacent structures at presentation. These may require surgical resections beyond boundaries of total mesorectal excision (bTME) for radicality. Robotic bTME is under ... ...

    Abstract Background: Around 20% of rectal tumors are locally advanced with invasion into adjacent structures at presentation. These may require surgical resections beyond boundaries of total mesorectal excision (bTME) for radicality. Robotic bTME is under investigation. This study reports perioperative and oncological outcomes of robotic bTME for locally advanced rectal cancers.
    Materials and methods: A multicentre, retrospective analysis of prospectively collected robotic bTME resections (July 2015-November 2020). Demographics, clinicopathological features, short-term outcomes, recurrences, and survival were investigated.
    Results: One-hundred-sixty-eight patients (eight centres) were included. Median age and BMI were 60.0 (50.0-68.7) years and 24.0 (24.4-27.7) kg/m
    Conclusion: Robotic bTME is technically safe with relatively low conversion rate, good OS, and acceptable DFS in the hands of experienced surgeons in high volume centres. In selected cases robotic approach allows for high R0 rates during bTME.
    Language English
    Publishing date 2024-04-02
    Publishing country England
    Document type Journal Article
    ZDB-ID 632519-1
    ISSN 1532-2157 ; 0748-7983
    ISSN (online) 1532-2157
    ISSN 0748-7983
    DOI 10.1016/j.ejso.2024.108308
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Totally Robotic Autonomic Nerve-Preserving Total Mesorectal Excisions: Step-by-Step Technical Tips and Tricks.

    Baca, Bilgi / Benlice, Cigdem / Ozben, Volkan / Hamzaoglu, Ismail / Karahasanoglu, Tayfun

    Diseases of the colon and rectum

    2020  Volume 63, Issue 4, Page(s) 562

    MeSH term(s) Autonomic Pathways ; Humans ; Laparoscopy ; Postoperative Complications/prevention & control ; Rectal Neoplasms/surgery ; Robotic Surgical Procedures/methods ; Trauma, Nervous System/prevention & control
    Language English
    Publishing date 2020-03-04
    Publishing country United States
    Document type Journal Article ; Technical Report ; Video-Audio Media
    ZDB-ID 212581-x
    ISSN 1530-0358 ; 0012-3706
    ISSN (online) 1530-0358
    ISSN 0012-3706
    DOI 10.1097/DCR.0000000000001477
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: An international multi-institutional analysis of operative morbidity in patients undergoing elective diverticulitis surgery.

    Altinel, Yuksel / Cavallaro, Paul / Ricciardi, Rocco / Ozben, Volkan / Ozturk, Ersin / Bleday, Ron / Aytac, Erman / Bordeianou, Liliana

    Revista da Associacao Medica Brasileira (1992)

    2022  Volume 68, Issue 5, Page(s) 591–598

    Abstract: Objective: We investigated surgical complications of elective surgery for diverticulitis in international multi-institution to identify a prediction model for potential opportunities of quality improvement.: Methods: We identified 1225 patients who ... ...

    Abstract Objective: We investigated surgical complications of elective surgery for diverticulitis in international multi-institution to identify a prediction model for potential opportunities of quality improvement.
    Methods: We identified 1225 patients who underwent elective surgery for diverticulitis between January 2010 and January 2018. The data were obtained from the National Surgical Quality Improvement Program and the Turkish Diverticulitis Study Group Collaborative, retrospectively.
    Results: We observed that the presence of chronic obstructive pulmonary disease (OR: 3.2, 95%CI 1.8-5.9, p<0.001) or abscess at the time of surgery (OR: 1.4, 95%CI 1.2-1.7, p£0.001) is associated with a higher rate of minor complications, while comorbidities such as dyspnea (OR: 2.8, 95%CI 1.6-4.9, p£0.001) and preoperative sepsis (OR: 4.1, 95%CI 2.3-7.3, p£0.001) are associated with major complications. The centers had similar findings in minor and major complications (OR: 0.8, 95%CI 0.5-1.4, p=0.395). The major independent predictors for complications were malnutrition (low albumin) (OR: 0.5, 95%CI 0.4-0.6, p<0.001) and the American Society of Anesthesiology score (OR: 1.7, 95%CI 1.2-2.4, p=0.002).
    Conclusion: Regarding the major and minor complications of diverticulitis of elective surgery, the malnutrition and higher American Society of Anesthesiology score showed higher impact among the quality improvement initiatives.
    MeSH term(s) Diverticulitis/complications ; Diverticulitis/surgery ; Elective Surgical Procedures/adverse effects ; Humans ; Malnutrition ; Morbidity ; Postoperative Complications/epidemiology ; Retrospective Studies ; United States
    Language English
    Publishing date 2022-05-20
    Publishing country Brazil
    Document type Journal Article ; Multicenter Study
    ZDB-ID 731969-1
    ISSN 1806-9282 ; 0104-4230 ; 0004-5241 ; 0102-843X
    ISSN (online) 1806-9282
    ISSN 0104-4230 ; 0004-5241 ; 0102-843X
    DOI 10.1590/1806-9282.20211174
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Can volumetric measurement be used in the selection of treatment for inguinoscrotal hernias?

    Ertem, Metin / Gök, Hakan / Özben, Volkan / Hatipoğlu, Engin / Yıldız, Erdem

    Turkish journal of surgery

    2018  Volume 34, Issue 1, Page(s) 13–16

    Abstract: Objective: Inguinoscrotal hernias are often qualified subjectively as big, giant, scrotal, etc. In order to classify this type of hernia, objective criteria are needed. For this purpose, we aimed to introduce a scrotal volume measurement-based ... ...

    Abstract Objective: Inguinoscrotal hernias are often qualified subjectively as big, giant, scrotal, etc. In order to classify this type of hernia, objective criteria are needed. For this purpose, we aimed to introduce a scrotal volume measurement-based classification system and propose a corresponding surgical plan (open or laparoscopic surgery, anterior or posterior repair) based on volumetric data.
    Material and methods: Between October 2012 and October 2013, 30 consecutive male patients with a mean age of 59.5 years (range: 36 to 82 years) presenting with unilateral ISH were included in this retrospective study. Physical measurements in the upright position and computerized tomography measurements using the Valsalva maneuver were obtained from all patients.
    Results: Of the 30 patients, 26 patients had scrotal volumes less than 1000 mL, two patients had SVs between 1001 and 2000 mL, one patient had an SV between 2001 and 3000 mL, and one patient had an SV greater than 3000 mL. Laparoscopic total extraperitoneal repair was performed in patients with scrotal volumes inferior to 1000 mL. In three patients with scrotal volumes between 1000 and 3000 mL, an open posterior approach was used. In one patient with a scrotal volume superior to 3000 mL, no surgical intervention was performed due to the patient's cardiac comorbidity.
    Conclusion: By establishing a common language among surgeons, we believe that the volumetric measurement-based scrotal hernia classification system proposed in this study will lead to further studies on the subject.
    Language English
    Publishing date 2018-01-03
    Publishing country Turkey
    Document type Journal Article
    ISSN 2564-6850
    ISSN 2564-6850
    DOI 10.5152/turkjsurg.2017.3710
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Does Obesity Impact Surgical and Pathological Outcomes in Robotic Complete Mesocolic Excision for Colon Cancer?

    Ozben, Volkan / Aliyeva, Zumrud / Bilgin, Ismail Ahmet / Aytac, Erman / Baca, Bilgi / Hamzaoglu, Ismail / Karahasanoglu, Tayfun

    Journal of laparoendoscopic & advanced surgical techniques. Part A

    2021  Volume 31, Issue 11, Page(s) 1247–1253

    Abstract: Background: ...

    Abstract Background:
    MeSH term(s) Colectomy ; Colonic Neoplasms/surgery ; Humans ; Obesity/complications ; Robotic Surgical Procedures/adverse effects
    Language English
    Publishing date 2021-01-08
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1381909-4
    ISSN 1557-9034 ; 1092-6429
    ISSN (online) 1557-9034
    ISSN 1092-6429
    DOI 10.1089/lap.2020.0824
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  6. Article ; Online: Metastasis to lymph nodes around the vascular tie worsens long-term oncological outcomes following complete mesocolic excision and conventional colectomy for right-sided colon cancer.

    Zenger, Serkan / Aytac, Erman / Gurbuz, Bulent / Ozben, Volkan / Ozoran, Emre / Baca, Bilgi / Balik, Emre / Hamzaoglu, Ismail / Karahasanoglu, Tayfun / Bugra, Dursun

    Techniques in coloproctology

    2021  Volume 25, Issue 3, Page(s) 309–317

    Abstract: Background: Oncologic outcomes after complete mesocolic excision (CME) in colon cancer are under investigation. The aim of our study was to compare CME and conventional colectomy (CC) in terms of pathological and oncological outcomes for right colon ... ...

    Abstract Background: Oncologic outcomes after complete mesocolic excision (CME) in colon cancer are under investigation. The aim of our study was to compare CME and conventional colectomy (CC) in terms of pathological and oncological outcomes for right colon cancer and to evaluate the impact of lymph node metastasis around the vascular tie on survival.
    Methods: Consecutive patients with right colon cancer who had CME or CC between January 2011 and August 2018 at two specialized centers in Turkey were included. Statistical analyses were performed with respect to demographic characteristics, operative and pathologic outcomes, harvested and metastatic lymph nodes around the vascular tie (LNVT), recurrences, and survival.
    Results: There were 91 patients in the CME group (58 males, mean age 64 ± 16 years) and 192 patients in the CC group (96 males, mean age 66 ± 14 years). The mean number of harvested lymph nodes (CME: 42 ± 15 vs CC: 34 ± 13, p = 0.01) and LNVT were higher in the CME group (CME: 3.2 ± 2.2 vs CC: 2.4 ± 1.6, p = 0.001). LNVT metastases were 7.7% and 8.3% in the CME and CC groups, respectively (p = 0.85). Three-year overall and disease-free survival rates were 96.4% and 90.9% in the CME group and 90.4% and 87.6% in the CC group in stage I-III patients (p > 0.05). In stage III patients, the 3-year overall survival (92.5% vs 63.5%, p = 0.03) and disease-free survival (85.6% vs 52.1%, p = 0.008) were significantly better in LNVT-negative patients than in LNVT-positive patients.
    Conclusion: LNVT metastasis seems to be the key factor associated with poor disease-free and overall survival in right colon cancer regardless of the radicality of surgery.
    MeSH term(s) Aged ; Aged, 80 and over ; Colectomy ; Colonic Neoplasms/surgery ; Humans ; Laparoscopy ; Lymph Node Excision ; Lymph Nodes/surgery ; Male ; Mesocolon/surgery ; Middle Aged ; Neoplasm Recurrence, Local ; Treatment Outcome ; Turkey
    Language English
    Publishing date 2021-01-05
    Publishing country Italy
    Document type Journal Article
    ZDB-ID 2083309-X
    ISSN 1128-045X ; 1123-6337
    ISSN (online) 1128-045X
    ISSN 1123-6337
    DOI 10.1007/s10151-020-02378-4
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  7. Article ; Online: Does omental pedicle flap reduce anastomotic leak and septic complications after rectal cancer surgery?

    Ozben, Volkan / Aytac, Erman / Liu, Xiaobo / Ozuner, Gokhan

    International journal of surgery (London, England)

    2016  Volume 27, Page(s) 53–57

    Abstract: Introduction: Whether creation of omental pedicle flap (OPF) to reinforce bowel anastomosis can reduce septic outcomes remains controversial. The aim of this study was to investigate the role of this technique on anastomotic leak and septic ... ...

    Abstract Introduction: Whether creation of omental pedicle flap (OPF) to reinforce bowel anastomosis can reduce septic outcomes remains controversial. The aim of this study was to investigate the role of this technique on anastomotic leak and septic complications after rectal cancer surgery.
    Methods: Patients who underwent rectal cancer surgery from 01/2008 to 12/2013 were identified and categorized into two groups based on OPF creation versus no-OPF creation. Clinical, operative characteristics and postoperative anastomotic leak and surgical site infections within 30 days after surgery were compared between the groups.
    Results: There were 65 (14%) and 403 (86%) patients in OPF and no-OPF group, respectively. In multivariate analysis, OPF was not found to be associated with anastomotic leak (p = 0.35), organ/space infections (p = 0.99) and overall surgical site infections (p = 0.65). Three hundred and sixty eight (78.6%) patients underwent diversion. OPF did not reduce septic complications irrespective of the stoma status (p > 0.05). There were no differences between the two groups in terms of operative (p = 0.46) and non-operative management (p = 0.14).
    Conclusion: OPF neither reduced the incidence of anastomotic leak and surgical site infections nor had any impact on the management of anastomotic leak.
    MeSH term(s) Aged ; Anastomosis, Surgical/adverse effects ; Anastomosis, Surgical/methods ; Anastomotic Leak/epidemiology ; Anastomotic Leak/etiology ; Anastomotic Leak/prevention & control ; Female ; Humans ; Incidence ; Male ; Middle Aged ; Multivariate Analysis ; Omentum/surgery ; Rectal Neoplasms/surgery ; Retrospective Studies ; Surgical Flaps ; Surgical Stomas/adverse effects ; Surgical Wound Infection/epidemiology ; Surgical Wound Infection/etiology ; Surgical Wound Infection/prevention & control
    Language English
    Publishing date 2016-01-14
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2212038-5
    ISSN 1743-9159 ; 1743-9191
    ISSN (online) 1743-9159
    ISSN 1743-9191
    DOI 10.1016/j.ijsu.2015.12.070
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  8. Article ; Online: Robotic repair of vaginal evisceration after hysterectomy and the role of intraoperative near-infrared fluorescence imaging.

    Canturk, Melis / Ozben, Volkan / Kose, Mehmet Faruk / Baca, Bilgi

    Journal of robotic surgery

    2017  Volume 11, Issue 3, Page(s) 383–386

    Abstract: Vaginal evisceration of the small bowel is a rare and potentially life-threatening complication after hysterectomy. This complication requires prompt surgical management and methods of surgical repair include abdominal, vaginal or laparoscopic approaches. ...

    Abstract Vaginal evisceration of the small bowel is a rare and potentially life-threatening complication after hysterectomy. This complication requires prompt surgical management and methods of surgical repair include abdominal, vaginal or laparoscopic approaches. We report the first case of robotic approach for repair of vaginal evisceration and intraoperative use of near-infrared fluorescence imaging for the assessment of bowel perfusion in a 63-year-old postmenopausal woman with a history of robotic hysterectomy for cervix cancer. This case demonstrates the safety and feasibility of robotic surgery and the advantage of using intraoperative near-infrared fluorescence imaging for bowel perfusion, a critical factor for surgical decision-making.
    MeSH term(s) Female ; Humans ; Hysterectomy/adverse effects ; Hysterectomy/methods ; Intestine, Small/surgery ; Intraoperative Care ; Middle Aged ; Postoperative Complications/etiology ; Postoperative Complications/surgery ; Robotic Surgical Procedures/methods ; Spectrometry, Fluorescence ; Spectroscopy, Near-Infrared ; Surgery, Computer-Assisted/methods ; Uterine Cervical Neoplasms/diagnostic imaging ; Uterine Cervical Neoplasms/surgery ; Vagina/diagnostic imaging ; Vagina/surgery ; Viscera/surgery ; Visceral Prolapse/surgery
    Keywords covid19
    Language English
    Publishing date 2017-09
    Publishing country England
    Document type Case Reports ; Journal Article
    ZDB-ID 2268283-1
    ISSN 1863-2491 ; 1863-2483
    ISSN (online) 1863-2491
    ISSN 1863-2483
    DOI 10.1007/s11701-017-0688-y
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  9. Article ; Online: Totally laparoscopic and totally robotic surgery in patients with left-sided colonic diverticulitis.

    Bilgin, Ismail Ahmet / Bas, Mustafa / Benlice, Cigdem / Esen, Eren / Ozben, Volkan / Aytac, Erman / Baca, Bilgi / Hamzaoglu, Ismail / Karahasanoglu, Tayfun

    The international journal of medical robotics + computer assisted surgery : MRCAS

    2020  Volume 16, Issue 1, Page(s) e2068

    Abstract: Background: Introduction of the da Vinci Xi system has facilitated the use of robotics in colorectal surgery. Nevertheless, data on the outcomes of robotic surgery for the treatment of colonic diverticulitis have remained scarce.: Methods: Patient ... ...

    Abstract Background: Introduction of the da Vinci Xi system has facilitated the use of robotics in colorectal surgery. Nevertheless, data on the outcomes of robotic surgery for the treatment of colonic diverticulitis have remained scarce.
    Methods: Patient demographics, clinical characteristics, and perioperative outcomes of the patients undergoing totally robotic with the da Vinci Xi system or laparoscopic surgery for left-sided colonic diverticulitis (LCD) were compared.
    Results: Laparoscopic and robotic groups included 22 and 20 patients, respectively. There were no significant differences between the two groups in terms of patient demographics, clinical characteristics, operative time, and postoperative complications. There were three conversions in the laparoscopy group and no conversion in the robotic group (P = 0.23). Conversion to open surgery was associated with postoperative morbidity (P = 0.02).
    Conclusion: Robotic surgery is an applicable alternative for the treatment of LCD. Robotic approach may potentially lower the risk of operative morbidity by reducing the requirement of conversion.
    MeSH term(s) Adult ; Aged ; Diverticulitis, Colonic/surgery ; Female ; Humans ; Laparoscopy/adverse effects ; Laparoscopy/methods ; Male ; Middle Aged ; Operative Time ; Postoperative Complications/etiology ; Robotic Surgical Procedures/adverse effects ; Robotic Surgical Procedures/methods
    Language English
    Publishing date 2020-01-07
    Publishing country England
    Document type Journal Article
    ZDB-ID 2151860-9
    ISSN 1478-596X ; 1478-5951
    ISSN (online) 1478-596X
    ISSN 1478-5951
    DOI 10.1002/rcs.2068
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  10. Article ; Online: Stapled mucosectomy: an alternative technique for the removal of retained rectal mucosa after ileal pouch-anal anastomosis.

    Ertem, Metin / Ozben, Volkan

    Gut and liver

    2011  Volume 5, Issue 4, Page(s) 539–542

    Abstract: Restorative proctocolectomy (RPC), when performed with a stapled ileal pouch-anal anastomosis (IPAA), allows the retention of the rectal mucosa above the dentate line and can result in disease persistence or recurrence, as well as neoplastic lesions in ... ...

    Abstract Restorative proctocolectomy (RPC), when performed with a stapled ileal pouch-anal anastomosis (IPAA), allows the retention of the rectal mucosa above the dentate line and can result in disease persistence or recurrence, as well as neoplastic lesions in patients with ulcerative colitis (UC). We report the case of a patient with chronic UC who underwent staple mucosectomy, which is an alternative technique that evolved from stapled hemorrhoidopexy, rather than more traditional procedures. The patient had undergone laparoscopic RPC with a stapled IPAA 2 cm above the dentate line and a temporary loop ileostomy. Because the histopathology showed low-grade dysplasia in the proximal rectum, stapled mucosectomy with a 33-mm circular stapler kit at the time of ileostomy closure was scheduled. Following the application of a purse-string suture 1 cm above the dentate line, the stapler was inserted with its anvil beyond the purse-string and was fired. The excised rectal tissue was checked to ensure that it was a complete cylindrical doughnut. Histopathology of the excised tissue showed chronic inflammation. There were no complications during a follow-up period of 5 months. Because it preserves the normal rectal mucosal architecture and avoids a complex mucosectomy surgery, stapled mucosectomy seems to be a technically feasible and clinically acceptable alternative to the removal of rectal mucosa retained after RPC.
    Language English
    Publishing date 2011-11-21
    Publishing country Korea (South)
    Document type Journal Article
    ZDB-ID 2399010-7
    ISSN 2005-1212 ; 1976-2283
    ISSN (online) 2005-1212
    ISSN 1976-2283
    DOI 10.5009/gnl.2011.5.4.539
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