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    Does wound irrigation with clorhexidine gluconate reduce the surgical site infection rate in closure of temporary loop ileostomy? A prospective clinical study
    (Mary Ann Liebert, Inc, 2018) Göztok, Mustafa; Terzi, Mustafa Cem; Egeli, Tufan; Arslan, Naciye Çiğdem; Canda, Aras Emre
    Background: The aim of this study was to investigate the effect of irrigating the surgical site with 0.05% chlorhexidine gluconate (CHG) on surgical site infection (SSI) in temporary loop ileostomy closure. Methods: In this observational cohort, patients who underwent diverting loop ileostomy and elective ileostomy closure for any reason between September 2014 and July 2016 were enrolled. Irrigation of the surgical site with 0.05% CHG or saline were compared regarding post-operative incision complications. Infection risk was estimated by the National Nosocomial Infection Surveillance System (NNIS) and Study of the Effect of Nosocomial Infection Control (SENIC) scores. Post-operative follow-up was performed by a surgeon blinded to the treatment. Diagnosis of SSI was recorded according to the Guidelines for Prevention of Surgical Site Infection. Wound healing was evaluated by the Additional treatment, Serous discharge, Erythema, Purulent exudate, Separation of the deep tissues, Isolation of bacteria, and the duration of inpatient Stay (ASEPSIS) score. Results: There were 122 patients meeting the inclusion criteria: 60 in the saline (control) and 62 in the CHG (study) group. The mean age was 56.5 +/- 13.5 (standard deviation [SD]); 74 patients were male. The groups were similar regarding age, sex, indication for ileostomy, neoadjuvant therapies, and SENIC and ASEPSIS scores. The overall SSI rate was 18%: 19 patients (31.6%) in the control group and 3 (4.8%) patients in the study group (p <0.001). The mean ASEPSIS score was higher in the control group (12.8 +/- 17.7) than in the study group (3.7 +/- 7.8) (p <0.001). Patients in the control group had significantly higher rates of seroma (13.3% vs 1.6%; p = 0.014) and incision dehiscence (31.6% and 4.8%; p = 0.001). Time to healing was 9.9 +/- 5.1 days in the control group and 7.3 +/- 5.3 days in the study group (p = 0.007). Conclusions: Irrigation of the incision with 0.05% CHG reduces the SSI rate compared with saline irrigation. There is a need for randomized and wider trials to clarify the effect and standards of incision irrigation.
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    Is advanced age a hesitation for cytoreductive surgery and hyperthermic intraperitoneal chemotherapy in colorectal cancer?
    (Imprimatur Publications, 2018) Arslan, Naciye Çiğdem; Bişgin, Tayfun; Altay, Canan; Yavuzşen, Tuğba; Karaoğlu, Aziz; Canda, Aras Emre; Sarıoğlu, Sülen; Sökmen, Selman
    Purpose: The purpose of this study was to assess the feasibility and safety of cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) in elderly patients with peritoneal carcinomatosis of colorectal cancer. Methods: Patients who underwent curative complete CRS and HIPEC for peritoneal carcinomatosis of colorectal cancer with minimum follow-up of 24 months were included in the analysis. Charlson comorbidity index and ECOG performance status were used to evaluate preoperative condition. Patients were tiered into two groups according to age (<65 and>= 65 years). Postoperative morbidity, mortality, recurrence, and overall survival were compared between groups. Results: One-hundred patients were meeting the inclusion criteria. Median age was 56 years (ranging, 20-86). The origin of peritoneal carcinomatosis (PC) was colon in 77 and rectum in 23 patients. There were 31 patients in the elderly group. Mean hospital stay was 17 +/- 11.8 and 16.8 +/- 14.3 days in young and elderly groups (p=0.937). In young patients, postoperative morbidity was seen in 26 (37.6%) patients versus 9 (29%) patients in elderly group (p=0.272). Mortality was higher in elderly group (n=4, 12.9%) than in the younger group (n=5, 7.2%), but the difference was not statistically significant (p=0.287). Median follow-up was 25 months (ranging, 2-112). Local and/or distant recurrence occurred in 30 (43.4%) patients in the young group and 9 (29%) patients in elderly group (p=0.169). Two-years disease-free survival was similar: 67.1% in the young and 74% in the elderly groups (p=0.713). Conclusions: CRS and HIPEC offer comparable oncologic outcome in meticulously selected medically-fit elderly patients without increased postoperative morbidity and mortality.
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    Randomized controlled trial of 8 weeks' vs 12 weeks' interval between neoadjuvant chemoradiotherapy and surgery for locally advanced rectal cancer
    (Wiley, 2020) Terzi, Cem; Bingül, Meryem; Arslan, Naciye Çi?dem; Öztürk, Ersin; Canda, Aras Emre; Işık, Özgen; Yılmazlar, Tuncay; Obuz, Funda; Görken, İlknur Bilkay; Kurt, Meral A.; Ünlü, Mehtat Ş.; U?raş, Nesrin; Kanat, Özkan; Öztop, İlhan
    Aim The aim was to compare the pathological complete response (pCR) rate at 8 compared to 12 weeks' interval between completion of neoadjuvant chemoradiotherapy (CRT) and surgery in patients with locally advanced rectal cancer. Method This was a randomized trial which included a total of 330 patients from two institutions. Patients with locally advanced (T3-4N0M0, TxN+M0) rectal cancer were randomized into 8- and 12-week interval groups. All the patients received long-course CRT (45 Gy in 1.8 Gy fractions and concomitant oral capecitabine or 5-fluorouracil infusion). Surgery was performed at either 8 or 12 weeks after CRT. The primary end-point was pCR. Secondary end-points were sphincter preservation, postoperative morbidity and mortality. Results Two-hundred and fifty-two patients (n = 125 in the 8-week group, n = 127 in the 12-week group) were included. Demographic and clinical characteristics were similar between groups. The overall pCR rate was 17.9% (n = 45): 12% (n = 15) in the 8-week group and 23.6% (n = 30) in the 12-week group (P = 0.021). Sphincter-preserving surgery was performed in 107 (85.6%) patients which was significantly higher than the 94 (74%) patients in the 12-week group (P = 0.016). Postoperative mortality was seen in three (1.2%) patients overall and was not different between groups (1.6% in 8 weeks vs 0.8% in 12 weeks, P = 0.494). Groups were similar in anastomotic leak (10.8% in 8 weeks vs 4.5% in 12 weeks, P = 0.088) and morbidity (30.4% in 8 weeks and 20.1% in 12 weeks, P = 0.083). Conclusion Extending the interval between CRT and surgery from 8 to 12 weeks resulted in a 2-fold increase in pCR rate without any difference in mortality and morbidity.
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    The impact of sarcopenia on morbidity and long-term survival among patients with peritoneal metastases of colorectal origin treated with cytoreductive surgery and hyperthermic intraperitoneal chemotherapy: a 10-year longitudinal analysis of a single-center experience
    (Springer, 2020) A?alar, Cihan; Sökmen, Selman; Arslan, Çi?dem; Tuncer Altay, Canan; Başara, Işıl; Canda, Aras Emre; Obuz, Funda
    Background The aim of this study was to evaluate the prognostic value of preoperative sarcopenia with regard to postoperative morbidity and long-term survival in patients with peritoneal metastasis from colorectal cancer treated with cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC). Methods A longitudinal cohort study was conducted on patients with peritoneal metastases of colorectal origin treated with CRS-HIPEC between 2008 and 2018. Data on patient demographics, body mass index, operative characteristics, perioperative morbidity and survivorship status and oncological follow-up were obtained from the hospital registry. Sarcopenia was assessed using preoperative computed tomography (CT) findings. Results Sixty-five patients [mean (SD) age: 54.4 (13.4) years, 64.6% females] were included in the study. Sarcopenia was evident in 30.8% of patients, while mortality rate was 66.2% with median survival time of 33.6 months. Presence of sarcopenia was associated with older age (59.6 (9.2) vs. 52.1 (14.4) years, p = 0.038), higher likelihood of morbidity (70.0% vs. 35.6%, p = 0.015) and mortality (90.0% vs. 55.6%, p = 0.010) and shorter survival time (17.7 vs. 37.9 months, p = 0.005). Cox regression analysis revealed that the presence of sarcopenia (HR 2.245, 95% CI 0.996-5.067, p = 0.050) was a significant predictor of increased likelihood of mortality. Conclusions Preoperative sarcopenia is an independent prognostic factor of postoperative morbidity and shorter survival in CRC peritoneal metastasis patients treated with CRS-HIPEC. Our findings support the importance of preoperative screening for sarcopenia as part of preoperative risk assessment for better selection of CRS-HIPEC candidates or treatment modifications in CRC patients with peritoneal metastasis.