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  1. Article: A Retrospective Analysis of Incidental Gallbladder Cancer on Post-cholecystectomy Pathological Review.

    Guner, Murat / Kaya, Tayfun

    Cureus

    2023  Volume 15, Issue 10, Page(s) e47249

    Abstract: Background Gallbladder cancer is a rare cancer with a poor prognosis despite all the advances in treatment options and is mostly detected incidentally. In the current literature, re-excision is performed on patients with stage T1b and above, but high ... ...

    Abstract Background Gallbladder cancer is a rare cancer with a poor prognosis despite all the advances in treatment options and is mostly detected incidentally. In the current literature, re-excision is performed on patients with stage T1b and above, but high mortality rates are still observed. In this study, we aimed to investigate the reasons affecting the prognosis of incidental gallbladder cancer. Methodology Data from 33 patients were retrospectively analyzed. Patient age, sex, preoperative radiologic findings, surgical procedures, margin status, postoperative results with histologic diagnosis, T stage, complications, and mortality were evaluated. Results Of the 33 patients included in the study, 24 (72.7%) were female, nine (27.3%) were male, and the mean age was 66.4 ± 13.4 years. Seventeen (51.5%) patients in our study were aged over 65 years. Age over 65 years was found to have a significant effect on mortality (p = 0.018). In the preoperative ultrasound imaging, 27 (81.8%) patients had gallstones, two (6.1%) patients had gallbladder polyps, 31 (93.9%) had focal or diffuse thickness increases in the gallbladder wall, and nine (27.3%) patients had pericholecystic fluid. The presence of pericholecystic fluid (p = 0.039) and wall thickness (p = 0.006) were found to be associated with mortality. There was perineural invasion and lymphovascular in 17 patients each. Both perineural invasion (p = 0.016) and lymphovascular invasion (p = 0.007) were associated with mortality. Tumor grade was also associated with mortality (p = 0.001). When the prognosis of the patients was evaluated according to the T stage, the increase in the T stage negatively affected the prognosis (p < 0.001). Overall survival was a median of 17 months (95% confidence interval = 10.6-23.3). Conclusions Incidental gallbladder cancer is detected on routine histologic examination of gallbladder specimens after cholecystectomy. Most patients may require re-excision, but the prognosis is still poor in patients who have undergone re-excision. Age >65 years, pericholecystic fluid, T stage, grade, lymphovascular invasion, and perineural invasion had a significant effect on mortality, the presence of which should trigger the option of re-excision to be examined more carefully.
    Language English
    Publishing date 2023-10-18
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2747273-5
    ISSN 2168-8184
    ISSN 2168-8184
    DOI 10.7759/cureus.47249
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Low-Grade Appendiceal Mucinous Neoplasm: What Is the Best Treatment?

    Guner, Murat / Aydın, Cengiz

    Cureus

    2023  Volume 15, Issue 10, Page(s) e46591

    Abstract: Background: Low-grade appendiceal mucinous neoplasm (LAMN) is an uncommon tumor of the appendix that is usually diagnosed incidentally after surgery. Although LAMN may be asymptomatic, it can rupture and seed mucin and neoplastic epithelium into the ... ...

    Abstract Background: Low-grade appendiceal mucinous neoplasm (LAMN) is an uncommon tumor of the appendix that is usually diagnosed incidentally after surgery. Although LAMN may be asymptomatic, it can rupture and seed mucin and neoplastic epithelium into the peritoneum, causing pseudomyxoma peritonei (PMP).
    Materials and methods: Data from 53 patients were retrospectively analyzed. Age, sex, tumor size, margin status, peritoneal carcinomatosis index, surgical procedures, postoperative results with histologic diagnosis, T stage, recurrence, and mortality of the patients were evaluated.
    Results: Appendectomy was performed in 37 patients, right hemicolectomy in nine patients, cytoreductive surgery in one patient, and cytoreductive surgery and hyperthermic intraperitoneal chemotherapy in six patients. Recurrence occurred in four patients. Of the patients who developed recurrence, one patient had stage T4a disease, and the other three patients had T4b disease (p<0.001). Eighteen patients had acellular mucin in the serosa and four of these patients developed recurrence (p=0.004). Twelve patients had appendix perforation, and three of these patients had PMP on exploration (p<0.001). The mean survival time was 93.3 months in patients without recurrence and 32 months in patients with recurrence (p=0.021).
    Conclusions: Low-grade appendiceal mucinous neoplasms are rare appendiceal tumors. The appropriate management of this tumor is controversial. T stage, appendix perforation, presence of acellular mucin on the serosa, and surgical margins are risk factors for the development of PMP. Appendectomy is considered sufficient when there are no risk factors for Tis (LAMN) and T3 disease. Right hemicolectomy may be sufficient if there are no risk factors for T4a disease, but cytoreductive surgery and hyperthermic intraperitoneal chemotherapy seem to be the most appropriate treatments in the presence of the stated risk factors for T4b disease.
    Language English
    Publishing date 2023-10-06
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2747273-5
    ISSN 2168-8184
    ISSN 2168-8184
    DOI 10.7759/cureus.46591
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  3. Article ; Online: Dermatofibrosarcoma protuberans. A single center retrospective experience.

    Guner, Murat / Morkavuk, Sevket Barıs / Unal, Ali Ekrem

    Annali italiani di chirurgia

    2022  Volume 92, Page(s) 539–544

    Abstract: Aim: Dermatofibrosarcoma protuberans (DFSP) is a rare, slowly growing, painless mesenchimal tumor particularly originating from cutaneous and subcutaneous tissues. This neoplasy mostly presents as protrude indurated plaque with brownreddish color or ... ...

    Abstract Aim: Dermatofibrosarcoma protuberans (DFSP) is a rare, slowly growing, painless mesenchimal tumor particularly originating from cutaneous and subcutaneous tissues. This neoplasy mostly presents as protrude indurated plaque with brownreddish color or same color of the skin. DFSP has a high rate of recurrence but a low rate of metastasis.
    Methods: We present a retrospective study of 23 patients who were diagnosed with DFSP and operated at our institution. We examined the clinicopathological parameters with clinical outcome and the follow-up.
    Results: We retrospectively analysed the data of 23 patients operated for DFSP in Ankara University Medical School Department of Surgical Oncology between 2006 and 2017. Out of these 23 patients, 14 of them were male and 9 of them were female. Dermatofibrosarcoma protuberans has been detected within body in 13 patients, extremities in 7 patients, chest in 2 patients, neck in one patient as well. 6 patients were opereted one times and 17 patients were operated twice due to getting tumor free margins. One patient devaloped local recurrence and reexcision was performed. All patients are still alive and follow up period varied from 12 up to 144 months with a median of 54.2.
    Conclusion: In conclusion, DFSP is an uncommon, low-grade sarcoma of dermal fibroblast origin with a high local recurrence rate. Diagnosis is established by histology and immunohistochemistry. The greatest clinical challenge in the management of DFSP is achieving local control. Surgical excision is the treatment of choice.
    Key words: Dermatofibrosarcoma protuberans, Local Recurrence, Mesenchymal tumor.
    MeSH term(s) Dermatofibrosarcoma/surgery ; Female ; Follow-Up Studies ; Humans ; Male ; Neoplasm Recurrence, Local/surgery ; Retrospective Studies ; Skin Neoplasms/surgery
    Language English
    Publishing date 2022-04-07
    Publishing country Italy
    Document type Journal Article
    ZDB-ID 418927-9
    ISSN 2239-253X ; 0003-469X
    ISSN (online) 2239-253X
    ISSN 0003-469X
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  4. Article ; Online: Comparison of early and long term outcomes of open Lichtenstein repair and totally extraperitoneal herniorrhaphy for primary inguinal hernias

    Sevinç, Barış / Damburacı, Nurullah / Güner, Murat / Karahan, Ömer

    Turkish journal of medical sciences

    2019  Volume 49, Issue 1, Page(s) 38–41

    Abstract: Background/aim: Inguinal hernia repair is one of the most common surgical procedures worldwide. There is still controversy over which method has the best postoperative results. The aim of this study was to compare early and late ... ...

    Abstract Background/aim: Inguinal hernia repair is one of the most common surgical procedures worldwide. There is still controversy over which method has the best postoperative results. The aim of this study was to compare early and late postoperative results of laparoscopic totally extraperitoneal herniorrhaphy (TEP) and open Lichtenstein herniorrhaphy (OLR).
    Materials and methods: The study was conducted in a randomized prospective manner and it was concluded with 302 patients (147 cases in TEP group and 155 cases in OLR group). All procedures were performed by two experienced surgeons in both open and laparoscopic inguinal hernia repair.
    Results: The groups were similar in terms of age, sex, and types of inguinal hernia according to Nyhuss classification. The mean operation time was shorter in TEP group with 49.2 ± 15.5 min vs 54.3 ± 14.6 min in OLR group (P = 0.004). The mean length of hospital stay was significantly shorter in TEP group (P = 0.001). The mean postoperative visual analogue scale score was significantly lower in TEP group. With a mean follow-up of 40.95 months, the recurrence rates were similar in both groups with a rate of 4.3%. In terms of chronic pain, TEP group has better results than OLR with 3.4% vs 25.2%, respectively (P = 0.001).
    Conclusion: In experienced hands, TEP procedure has better early and late postoperative results than OLR, whereas recurrence rates are similar.
    MeSH term(s) Adult ; Hernia, Inguinal/surgery ; Herniorrhaphy/adverse effects ; Herniorrhaphy/methods ; Herniorrhaphy/statistics & numerical data ; Humans ; Laparoscopy ; Length of Stay/statistics & numerical data ; Pain, Postoperative/epidemiology ; Recurrence ; Surgical Mesh ; Treatment Outcome
    Language English
    Publishing date 2019-02-11
    Publishing country Turkey
    Document type Comparative Study ; Journal Article ; Randomized Controlled Trial
    ZDB-ID 1183461-4
    ISSN 1303-6165 ; 1300-0144
    ISSN (online) 1303-6165
    ISSN 1300-0144
    DOI 10.3906/sag-1803-94
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Comparison of Raja Isteri Pengiran Anak Saleha Appendicitis and modified Alvarado scoring systems in the diagnosis of acute appendicitis.

    Damburacı, Nurullah / Sevinç, Barış / Güner, Murat / Karahan, Ömer

    ANZ journal of surgery

    2019  Volume 90, Issue 4, Page(s) 521–524

    Abstract: Background: The diagnosis of acute appendicitis (AA) is mainly dependent on clinical evaluation. There are several scoring systems developed for an accurate and early diagnosis of AA. Modified Alvarado score is one of the most common systems. The Raja ... ...

    Abstract Background: The diagnosis of acute appendicitis (AA) is mainly dependent on clinical evaluation. There are several scoring systems developed for an accurate and early diagnosis of AA. Modified Alvarado score is one of the most common systems. The Raja Isteri Pengiran Anak Saleha Appendicitis (RIPASA) scoring system was developed in 2010. The aim of this study is to evaluate and compare the accuracy of modified Alvarado and RIPASA scoring systems for the diagnosis of AA.
    Methods: A total of 100 cases with the clinical diagnosis of AA were included in the study. All the cases were treated surgically. For all cases, modified Alvarado and RIPASA scores were calculated and recorded. According to the calculated cut-off values, sensitivity, specificity, negative and positive predictive values and total accuracy were calculated for each scoring systems.
    Results: According to the receiver operating characteristic curve. the optimal score of modified Alvarado score for AA was found to be 5.5 with a sensitivity of 88% and specificity of 69%. According to the receiver operating characteristic curve, the optimal score of RIPASA score for AA was found to be 8.75 with a sensitivity of 94% and specificity of 88%. With the cut-off value of 8.75, total accuracy of RIPASA scoring was found to be 85.2%. Although there is no significant difference in negative appendicectomy rate, both sensitivity and the specificity of the RIPASA were found to be significantly higher than the modified Alvarado.
    Conclusion: According to the current study, RIPASA scoring system was found to be superior to modified Alvarado in the prediction of cases with AA.
    MeSH term(s) Acute Disease ; Animals ; Appendectomy ; Appendicitis/diagnosis ; Appendicitis/surgery ; Humans ; Sensitivity and Specificity ; Skates, Fish
    Language English
    Publishing date 2019-12-15
    Publishing country Australia
    Document type Journal Article
    ZDB-ID 2050749-5
    ISSN 1445-2197 ; 1445-1433 ; 0004-8682
    ISSN (online) 1445-2197
    ISSN 1445-1433 ; 0004-8682
    DOI 10.1111/ans.15607
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  6. Article ; Online: Will plain packaging of cigarettes achieve the expected? Perceptions among medical students.

    Ay, Pinar / Yasin, Yesim / Elbek, Osman / Guner, Murat / Gezer, Tanzer / Sonmez, Ummuhan Pece / Ceyhan, Murat / Yildiz, Fusun / Dagli, Elif

    Tobacco induced diseases

    2022  Volume 20, Page(s) 92

    Abstract: Introduction: Plain packaging is one of the critical strategies in eliminating the promotion of tobacco products. Evidence indicates that plain packaging decreases the attractiveness of tobacco products and enhances the effectiveness of health warnings. ...

    Abstract Introduction: Plain packaging is one of the critical strategies in eliminating the promotion of tobacco products. Evidence indicates that plain packaging decreases the attractiveness of tobacco products and enhances the effectiveness of health warnings. This study aimed to explore the perceptions of undergraduate medical students of plain packaging and new pictorial warnings before they came into use in Turkey.
    Methods: This qualitative study was carried out among undergraduate students in a Medical School in Istanbul in 2019. Participants were recruited through purposive sampling, and data were collected through focus group discussions. The participants were asked to discuss their perceptions regarding one original branded pack and ten plain package models. All discussions were audiotaped and thematic content analysis was conducted.
    Results: A total of 72 students participated in the study. None of the students had seen plain packaging before. Most of the students perceived plain packaging as more favorable compared to the branded packs. The terms used to describe plain package were: 'appealing/desirable', 'attractive', 'beautiful', 'cool/eye-catching', 'charming', 'elegant', and 'special'. Some students indicated that they would have preferred plain packs over the branded ones if both types of products had been in the market and provided they were of the same brand. Pictorials had different impacts based on their content. At the same time, outer body deformities were perceived as 'real' and provoked unfavorable feelings; inner organ images were defined as 'imaginary' and had little to no impact.
    Conclusions: Plain packaging was perceived as a more attractive alternative to the conventional branded packs among most participants. We must be aware of the unforeseen effects of plain packaging among different subgroups in the new generations. We suggest using outer body deformities in the pictorials more frequently due to their higher impact.
    Language English
    Publishing date 2022-10-31
    Publishing country Greece
    Document type Journal Article
    ZDB-ID 2194616-4
    ISSN 1617-9625 ; 1617-9625
    ISSN (online) 1617-9625
    ISSN 1617-9625
    DOI 10.18332/tid/154056
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  7. Article ; Online: The outcomes of isolated ureteral resection and reconstruction in non-urologic cancer patients who underwent cytoreductive surgery (CRC) and hyperthermic intraperitoneal chemotherapy (HIPEC).

    Morkavuk, Şevket Barış / Güner, Murat / Tez, Mesut / Ünal, Ali Ekrem

    World journal of surgical oncology

    2019  Volume 17, Issue 1, Page(s) 230

    Abstract: Background: Urinary system resections are performed during the cytoreductive surgery with hypertermic intraperitoneal chemotherapy (CRS-HIPEC). However, isolated ureter resection and reconstruction results are uncertain. The aim of this study was to ... ...

    Abstract Background: Urinary system resections are performed during the cytoreductive surgery with hypertermic intraperitoneal chemotherapy (CRS-HIPEC). However, isolated ureter resection and reconstruction results are uncertain. The aim of this study was to evaluate the postoperative outcomes of isolated ureteral resection and reconstructions in patients who underwent CRC and HIPEC procedure.
    Methods: A total of 257 patients that underwent CRC and HIPEC between 2015 and 2017 in the Department of Surgical Oncology, Faculty of Medicine, Ankara University, were retrospectively analyzed. Twenty patients that had undergone isolated ureteral resection and reconstruction were included in the study. Predisposing factors were investigated in patients who developed postoperative complications.
    Results: The mean age of the patients was 55.1 years. The mean follow-up time of all the patients was 11.6 months. Postoperative mortality occurred in two patients. The mean PCI score was 13.9. Postoperative urologic complications were observed in eight patients after ureter reconstruction. There was no statistically significant difference between the groups in terms of reconstruction techniques and postoperative complications (P = 302). There was no correlation between age (P = 0.571) and gender (P = 0.161) with complications. CRS-HIPEC was performed mostly due to gynecologic malignancy. However, there was no correlation between the primary cancer diagnosis and the development of complications (P = 0.514). The hospital stay duration was higher in the group with complications (16.3 vs 8.8 days, P = 0.208).
    Conclusions: Ureteral resections and reconstructions can be performed for R0/1 resections in CRS-HIPEC operations. It leads to an increase in hospital stay. But there is no significant difference in the development of complications. In the management of complications, conservative approach was sufficient.
    MeSH term(s) Adult ; Aged ; Aged, 80 and over ; Cytoreduction Surgical Procedures/mortality ; Cytoreduction Surgical Procedures/statistics & numerical data ; Female ; Humans ; Hyperthermia, Induced/methods ; Hyperthermia, Induced/mortality ; Hyperthermia, Induced/statistics & numerical data ; Length of Stay ; Male ; Middle Aged ; Peritoneal Neoplasms/drug therapy ; Peritoneal Neoplasms/mortality ; Peritoneal Neoplasms/pathology ; Peritoneal Neoplasms/surgery ; Postoperative Complications ; Reconstructive Surgical Procedures/mortality ; Reconstructive Surgical Procedures/statistics & numerical data ; Retrospective Studies ; Survival Rate ; Treatment Outcome ; Ureter/surgery ; Urologic Surgical Procedures/mortality ; Urologic Surgical Procedures/statistics & numerical data
    Language English
    Publishing date 2019-12-26
    Publishing country England
    Document type Journal Article
    ZDB-ID 2118383-1
    ISSN 1477-7819 ; 1477-7819
    ISSN (online) 1477-7819
    ISSN 1477-7819
    DOI 10.1186/s12957-019-1770-x
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  8. Article ; Online: Relationship between lymphovascular invasion and molecular subtypes in invasive breast cancer.

    Morkavuk, Şevket Barış / Güner, Murat / Çulcu, Serdar / Eroğlu, Aydan / Bayar, Sancar / Ünal, Ali Ekrem

    International journal of clinical practice

    2020  Volume 75, Issue 4, Page(s) e13897

    Abstract: Purpose: The aim of this study is to evaluate the relation between LVI and molecular subtypes in invasive breast cancers and to find out whether LVI which is a histopathologic indicator has a role in subtype classification or not.: Methods: One ... ...

    Abstract Purpose: The aim of this study is to evaluate the relation between LVI and molecular subtypes in invasive breast cancers and to find out whether LVI which is a histopathologic indicator has a role in subtype classification or not.
    Methods: One hundred and seventy-six patients who had mastectomy for breast cancer between 2013 and 2018 in the Department of Surgical Oncology, Faculty of Medicine, Ankara University were retrospectively analysed. One hundred and thirty-two patients who had LVI, ER, PR, Her 2 and Ki-67 index status information provided in their pathology results were included in the study. The relationship between molecular subtypes and LVI was investigated.
    Results: One hundred and thirty-two patients were analysed retrospectively. Eighty-two patients had LVI and 50 patients had not. We found a relationship between Luminal B with Her2(-) and LVI, basal like and LVI (P = .00). No significant statistical difference was found between LVI and other molecular subtypes. We confirmed these results with multiple variable analysis (%77.3 correlation).
    Conclusions: As a result, we found that LVI can affect molecular subtypes. This showed that a histopathological factor may affect tumour biology. In other words, breast cancer is a heterogeneous disease with many different predictors and prognostic variables.
    MeSH term(s) Breast Neoplasms ; Female ; Humans ; Lymphatic Metastasis ; Mastectomy ; Neoplasm Invasiveness ; Prognosis ; Retrospective Studies
    Language English
    Publishing date 2020-12-17
    Publishing country England
    Document type Journal Article
    ZDB-ID 1386246-7
    ISSN 1742-1241 ; 1368-5031
    ISSN (online) 1742-1241
    ISSN 1368-5031
    DOI 10.1111/ijcp.13897
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