Antimicrobial and antibiofilm activity of polyurethane/Hypericum perforatum extract (PHPE) composite.

Microbial accumulation in materials used in sectors such as medical, textile and food can lead to serious diseases, infections and uncontrollable problems. Many of the materials used in the above-mentioned industries have highly sensitive surfaces for microorganisms and cause colonization and biofilm formation. Colonization and biofilm formation threaten human health and they cause many diseases that result in death every year. Antimicrobial materials have an important role in combating pathogens. This article is about a new material with antibiofilm and antimicrobial properties combining polyurethane and Hypericum perforatum extract (PHPE) together. Antimicrobial effect of H. perforatum extract was determined against three clinical pathogens; C. albicans, E. coli and S. aureus. The highest antimicrobial activity of H. perforatum extract was found against S. aureus strain. Antibiofilm analysis results revealed that H. perforatum was also inhibited by the biofilm formation of S. aureus by 56.85%. The combination of polyurethane material and H. perforatum extract (PHPE) resulted in 92.85% decrease in S. aureus biofilm compared to control group. The reduction of S. aureus after H. perforatum incorporation was revealed by Scanning Electron Microscopy (SEM) study. The results show that the polyurethane material combined with H. perforatum extract inhibits the formation of S. aureus biofilm.

Effect of epidural anesthesia on anastomotic leakage in colonic surgery: experimental study.

BACKGROUND: The association between the infusion of continuous epidural anesthesia and the anastomotic strength of colonic anastomosis was examined in an animal model. METHODS: Fourteen white male New Zealand rabbits were included in the study and randomly assigned to two groups. Group 1 (n=7) had continuous epidural 0.9% NaCl infusion (0.4 ml kg-1 bolus and 0.2 ml kg-1 h-1 infusion) and Group 2 (n=7) had continuous epidural 1% lidocaine infusion (0.4 ml kg-1 bolus and 0.2 ml kg-1 h-1 infusion). Infusions started at the beginning of the operation and were continued for six hours postoperatively. All experimental animals underwent right colon resection and colo-colonic anastomosis under general anesthesia. On the fourth postoperative day, relaparotomy was applied and the bursting pressures of the anastomosis (BPA) were measured in situ. Segments 1-cm long consisting of the complete suture lines were excised, and the levels of hydroxyproline and collagen were measured. RESULTS: BPAs were statistically higher in the epidural lidocaine group (median: 248 mmHg; min 117 - max 300) than in the saline group (median: 109 mmHg; min 47 - max 176) (p=0.006). There was no difference between the groups in terms of hydroxyproline and collagen levels in the sample tissues (p>0.05). CONCLUSION: We concluded that the strength of colonic anastomosis may be increased by epidural lidocaine infusion.

Prosthetic repair of incarcerated inguinal hernias: is it a reliable method?

BACKGROUND AND AIM: It is generally accepted that most inguinal hernias should be operated on electively using synthetic grafts. However, limited information is available on the usage of these materials in patient with incarcerated and strangulated hernias. The objective of this study is to compare the outcomes of incarcerated inguinal hernia repair with or without graft. MATERIALS AND METHODS: One hundred-thirteen patients with incarcerated inguinal hernia that underwent surgery were included in this study. Patients who underwent Lichtenstein repair were assigned to group I; those who underwent primary repair were assigned to group II. Demographics and characteristics of patients in each group were compared. Chi-square and Student's t-tests were used. RESULTS: No statistical difference was found between patients who did and did not receive anastomosis in both groups in terms of surgery duration, length of hospital stay, postoperative morbidity, and mortality. Recurrence was found in 4.0% and 20.8% patients in group I and group II, respectively (P = 0.036). CONCLUSIONS: Mesh repair can be preferred in incarcerated inguinal hernia patients because recurrence rate was significantly lower in patients who underwent Lichtenstein repair in this study.

Both a biopsy method and a therapeutic procedure in BI-RADS 4A and 4B lesions: Ultrasound-guided vacuum-assisted breast biopsy.

OBJECTIVES: This study aimed to evaluate outcomes, complications, and follow-up results of ultrasound-guided vacuum-assisted breast biopsy (UG-VABB) in BI-RADS 4 A and B lesions. MATERIAL AND METHODS: Between Agust 2014 to January 2018, fifty BI-RADS 4A and BI-RADS 4B lesions of 41 patients biopsied with 10G vacuum needle by a single radiologist were retrospectively evaluated. RESULTS: All patients were females and mean age of the 41 patients was 50.12 ± 8.63. Of all lesions, 84% was benign, 6% was ADH, 4% was in-situ cancer, and 6% was diagnosed as malign. Follow-up duration after VABB was 0-51 months and mean was 20.92 months. Complications were as vasovagal-induced seizure in 3 patients (7.3%) and intramammary hematoma in 16 patients (39%). Hematoma was diagnosed in 3 patients (7.3%) at the 6th month follow-up and it was resolved in all patients at the 12th month follow-up. Higher breast density resulted in higher hematoma rates. There was no relationship between lesion BI-RADS subgroups, lesion size or sample number and hematoma development. During the follow-up, residue lesion in 1 (2.4%) patient and scar tissue in 2 (4.9%) patients was detected. CONCLUSION: US-guided VABB, with low complication rates and low scar development, is also a therapeutic excision method without remaining residue, which should be primarily preferred in smaller than 2 cm BI-RADS 4A and 4B lesions whose malignancy rates are relatively low. Hematoma, which is the most frequent complication, resorbed entirely in the 12th month in all patients.

The Necessity of Upper Extremity Neurologic Examination while Evaluating Breast Pain.

INTRODUCTION: Breast pain is one of the most frequent complaints and occurs in 45-69% of all women. Cervical disc herniation is a common cause of cervical radiculopathy with an incidence rate of 18.6 per 100,000, and it should be considered as a cause of breast pain. OBJECTIVE: To identify the extent to which upper extremity neurologic findings and cervical root disorders accompany breast pain. METHODS: We prospectively collected clinical features of patients with breast pain. An upper extremity neurologic examination was performed in patients and controls. Patients who had neurologic findings underwent cervical spine magnetic resonance imaging (MRI) to identify cervical root disorders. RESULTS: Out of the 554 participants, 233 had breast pain, and 321 were controls. Women with breast pain had more numbness (116 [49.8%] vs. 104 [32.4%], p < 0.001) and more dysesthesia (36 [15.5%] vs. 17 [5.3%], p < 0.001) than the controls, but they had similar upper extremity weakness (10 [4.3%] vs. 14 [4.4%], p > 0.05). The number of women with one neurologic finding was significantly greater in the group with breast pain (119 [51.1%] vs. 111 [34.6%], p < 0.001). Ninety (16.2%) patients underwent a cervical vertebra MRI, which showed that 86 (95.6%) patients had cervical root disorders including 21 (23.3%) cases of bulging, 9 (10%) of annular tear, and 56 (62.2%) of central disc protrusion; 4 (4.4%) patients had normal findings. The multivariate logistic regression analysis revealed that age was the only significant predictor of neurologic findings in patients with breast pain (p < 0.05, OR: 1.02, CI: 1.002-1.053). CONCLUSIONS: Cervical root disorders should be considered as a cause of extramammary breast pain.

Splenectomy proportions are still high in low-grade traumatic splenic injury.

OBJECTIVE: The spleen is the most vulnerable organ in blunt abdominal trauma. Spleen-preserving treatments are non-operative management with or without splenic angioembolization, partial splenectomy, and splenorrhaphy. The aim of the present study was to determine the rate of SPTs and to evaluate the usefulness of Injury Severity Score after traumatic splenic injury. MATERIAL AND METHODS: We searched our institution's database between May 2012 and December 2015. Patients' clinicopathological features, surgeon's title, type of treatment, admission and discharge dates, duration of surgery, intensive care unit requirement, and Glasgow Coma Scale were recorded. RESULTS: The mean age of patients was 33.36±11.58 years. Of the 33 patients, 26 (78.8%) were males, and 7 (21.2%) were females. Thirty (90.9%) had total splenectomy (TS), and 3 (9.1%) had spleen preserving treatment (2 Nonoperative management and 1 partial splenectomy). No fatal hemorrhage developed after nonoperative management. Exitus rates were 5/30 (15.1%) and 0/3 in the total splenectomy and spleen preserving treatment groups, respectively. Of the 18 hemodynamically stable patients, only 2 (11.1%) had spleen preserving treatment. Of the 19 patients with grade I-III splenic injury, only 3 (15.8%) had spleen preserving treatment. For academic and non-academic surgeons, spleen preserving treatment rates were 3/11 (27.3%) and 0/22 (0%), respectively (p<0.05). Injury severity score and mean arterial pressure, number of transfusions, control hematocrit, and GCS had statistically significant relationships. CONCLUSIONS: Spleen preserving treatment proportions were low after traumatic splenic injury. Following trauma, guidelines will not only improve spleen preservation rates but also improve the overall health status of the patients and it will also prevent complications of splenectomy.

Adherence to vaccination recommendations after traumatic splenic injury.

BACKGROUND: The occurrence of a serious infection called overwhelming post-splenectomy infection (OPSI) increases more than 50 times in patients who have hyposplenia. The aim of this study was to investigate the adherence to vaccination recommendations after traumatic splenic injury. METHODS: We identified patients who underwent total splenectomy due to abdominal trauma between May 2012 and March 2016. We recorded the clinical, laboratory, and pathological features of the patients. We calculated the vaccination proportions before discharge, after discharge, and final. RESULTS: Twenty-seven patients underwent total splenectomy. For the vaccination status before discharge, after discharge, and final, the number of patients who received all the three vaccinations were 0 (0%), 0 (0%), and 8 (18.5%) and those who received none were 13 (48.2%), 11 (40.8%), and 9 (33.4%), respectively. The data of 17 patients were available for developing OPSI. The median follow-up time was 17.8 (4.4-41.2) months, and no OPSI cases were observed. CONCLUSION: Adherence to vaccination recommendations remains still low. Establishing a vaccination tracking system and following vaccination recommendations will be helpful to prevent serious infections, such as OPSI, after traumatic splenectomy.

Surgical treatment of hepatic injury: morbidity and mortality analysis of 109 cases.

BACKGROUND/AIMS: We aimed to determine the factors that affect morbidity and mortality in patients that underwent surgery for hepatic injury. METHODOLOGY: Records of 109 blunt or penetrating hepatic trauma patients that underwent surgery in the Third Surgical Clinic of Izmir Atattürk Training and Research Hospital between 1994 and 2004 were reviewed retrospectively. Evaluated parameters were: age, gender, cause of injury, diagnostic procedures, preoperative blood pressure (BP), hemoglobin (Hb) level, amount of intraabdominal blood, associated injuries, the number of involved hepatic segments and anatomic distribution, severity of injury, abdominal trauma index (ATI), amount of blood transfusions, type of surgery, hospital stay, and rates of morbidity and mortality. RESULTS: Median age of the patients was 29 years. The injury was penetrating in 53.2% of the patients and blunt in 46.8%. Abdominal blood was 500cc or less in 70 (64.2%) patients. Isolated hepatic injury was encountered in 29 (26.6%) cases. 22.9% of the patients had major injuries. Hemostasis was achieved by electrocautery, sponge-gel, primary suturing, hepatic resection or perihepatic packing. Morbidity and mortality rates were 40.4% and 14.6% respectively. CONCLUSIONS: Age, type of the injury, BP and Hb levels, amount of intraabdominal blood, degree of injury, ATI, and accompanying organ injuries significantly affect morbidity and/or mortality.

Survival analysis after surgical treatment of gastric cancer: review of 121 cases.

BACKGROUND/AIMS: This study was performed to evaluate major morbidity, early mortality and to analyze survival in our patients that underwent surgical treatment for gastric cancer. METHODOLOGY: Records of 121 patients with gastric adenocarcinoma that underwent surgery between 1997 and 2004 were reviewed retrospectively. Age, gender, tumor site, presence of local invasion, depth of tumor invasion, lymph node metastases, stage of the disease, distant metastases, histological differentiation, type of surgery, and blood transfusions were evaluated in relation to survival. Survival curves were estimated using the Kaplan-Meier method and the differences in survival were compared by the log-rank test. RESULTS: Forty-two cases (34.7%) underwent total gastrectomy, 34 (28.1%) had subtotal gastrectomy, and 45 (37.2%) received palliative surgery. The majority of the patients (61.2%) had stage IV gastric cancer. Total morbidity and mortality were 26.4% and 17.3%, respectively. The factors that influence survival were type of surgery, adjacent organ invasion, existence of metastases, lymph node status, blood transfusions, and stage of the disease in this study. Among the significant prognostic factors in the univariate analysis, only one factor, R0 resection proved to be independently significant in the multivariate analysis. CONCLUSIONS: R0 resection was found to have a significant favorable effect on survival in our study.

Palliative surgery for advanced stage (stage IV) gastric adenocarcinoma.

BACKGROUND/AIMS: The factors that effect resectability, major morbidity, early mortality, and survival in advanced stage gastric adenocarcinoma patients are evaluated. METHODOLOGY: Records of 74 patients that underwent surgery for stage IV gastric adenocarcinoma in the Third Surgical Clinic of Izmir Atatürk Training Hospital between January 1997 and January 2004 were reviewed retrospectively. Two groups (the patients with resectable disease and those with unresectable disease) were compared with regard to age, gender, primary complaint, symptoms, site of the tumor, involvement of adjacent organs, lymph node involvement, distant metastases, differentiation of tumor, surgical procedure, perioperative blood transfusions, and postoperative hospital stay. RESULTS: Mean age of the 74 patients was 58.4 years. Forty-five cases (60.8%) were considered as unresectable and 29 (39.2%) patients underwent a palliative resection. There was a significant relation between resectability and site of the tumor, and severity of invasion. As the number of perioperative blood transfusions increased, morbidity and mortality increased significantly. Although early mortality was high in the palliative resection group, survival (mean 10.4 months, longest 25 months) was better compared to that of the unresectable gastric cancer group (mean 3.5 months, longest eight months). CONCLUSIONS: A palliative gastric surgery may be applied to improve prognosis of advanced gastric cancer patients, even at the presence of peritoneal dissemination, hepatic metastases, N3 lymph node involvement, adjacent organ invasion, or poor differentiation of the tumor.

Band ligation of the perforated gall bladder during laparoscopic cholecystectomy.

Perforation of the gall bladder is a frequent complication during laparoscopic cholecystectomy. Grasping the perforated part of the gall bladder, clip application, or endoscopic loop application are possible solutions to prevent spillage. We propose laparoscopic rubber band application to close the perforated part of the gall bladder as an easy and safe method. We performed rubber band application after iatrogenic perforation of the gall bladder during laparoscopic cholecystectomy in 5 patients. Two-millimeter-wide multiple rubber rings, cut from a 14-Fr Foley catheter, are loaded on a grasper. When a perforation occurred during the dissection of the gall bladder, the hole is grasped with this instrument and 1 of the rings is placed on the gall bladder by the aid of a dissector. Thus, the grasper remained available for traction of the Hartmann's pouch during further dissection of the gall bladder. The rubber bands were placed successfully in all cases. Two perforations occurred in 1 case, and 2 bands were placed with ease. Bile leakage or gall stone spillage did not occur. Operation time was not prolonged. Rubber band ligation of perforation of the gall bladder is a simple, safe, inexpensive, and effective method to prevent spillage of the bile or gallstones in laparoscopic surgery.

Diagnosis and treatment of gallbladder perforation.

AIM: To present our clinical experience with gallbladder perforation cases. METHODS: Records of 332 patients who received medical and/or surgical treatment with the diagnosis of acute cholecystitis in our clinic between 1997 and 2006 were reviewed retrospectively. Sixteen (4.8%) of those patients had gallbladder perforation. The parameters including age, gender, time from the onset of symptoms to the time of surgery, diagnostic procedures, surgical treatment, morbidity, and mortality were evaluated. RESULTS: Seven patients had type I gallbladder perforation, 7 type II gallbladder perforation, and 2 type III gallbladder perforation according to Niemeier's classification. The patients underwent surgery after administration of intravenous electrolyte solutions, and were treated with analgesics and antibiotics within the first 36 h (mean 9 h) after admission. Two patients died of sepsis and multiple organ failure in the early postoperative period. Subhepatic abscess, pelvic abscess, pneumonia, pancreatitis, and acute renal failure were found in 6 patients. CONCLUSION: Early diagnosis and emergency surgical treatment of gallbladder perforation are of crucial importance. Upper abdominal computerized tomography for acute cholecystitis patients may contribute to the preoperative diagnosis of gallbladder perforation.

Gastrointestinal stromal tumors (GISTs): analysis of 20 cases.

BACKGROUND/AIMS: Gastrointestinal stromal tumors (GISTs) are soft tissue sarcomas arising from the mesenchymal tissues in the gastrointestinal tract. Diagnosis, treatment and follow-up protocols of GISTs have not been exactly defined. In this study, twenty cases with GISTs treated in our clinic are examined retrospectively. METHODOLOGY: Twenty cases treated for GISTs in Izmir Atatürk Training and Research Hospital between the years 1999 and 2004 were reviewed retrospectively. Age, gender, clinical findings, diagnostic methods, intraoperative findings, type of surgery, histopathological findings and survival of the patients were evaluated. RESULTS: Fifteen of the cases were male (75%) and five were female (25%), with a median age of 55 years (35-80). The most frequent symptoms were abdominal pain and acute gastrointestinal bleeding. Tumors were gastric (40%), small intestinal (45%), colonic (10%) or rectal (5%). The median tumor size was 9.1 centimeters. Pathological evaluation showed that number of mitoses per 50 high-power field (hpf) was more than five in nine of 10 cases and CD-117 was positive in four of four cases. The mean follow-up period was 21 (1-72) months, and median survival was 21 (1-72) months. CONCLUSIONS: The prognosis of GIST is frequently related to the tumor size and rate of mitosis. Despite the recent demonstration of C-kit protooncogene and introduction of imatinib mesilate as a new chance in treatment, radical surgery remains to be the most effective treatment of GISTs.

Obturator hernia should be considered in the differential diagnosis of hip and knee pain.

Obturator hernia is a rare disease usually occurring in debilitated elderly women. Pain radiating down the medial thigh and knee (Howship-Romberg sign) is a specific sign of the disease. Presently described is a case of obturator hernia in a 73-year-old female patient who presented with severe left hip pain radiating down the medial thigh and knee, nausea, and loss of appetite. Initially, vertebral disc herniation was thought to be cause, but abdomino-pelvic computed tomography scan revealed left strangulated obturator hernia. Diagnosis of obturator hernia can be challenging. Physicians should consider obturator hernia in the differential diagnosis of knee and hip pain, and investigate for Howship-Romberg sign. Early diagnosis of the disease not only decreases morbidity and mortality, but also presents opportunity to treat with minimally invasive methods.

Total gastrectomy for gastric carcinoma.

BACKGROUND/AIMS: Gastric cancer is one of the most common organ cancers all around the world and surgical resection is essential for treatment. Total gastrectomy is the procedure of choice for treatment of proximal gastric cancer. Mortality and morbidity risks of this procedure are high, especially among the elderly. METHODOLOGY: Thirty-eight gastric cancer patients underwent total gastrectomy in the Third Surgical Clinic of Izmir Ataturk Training and Research Hospital between 1996 and 2001. Age, gender, location of the tumor, histopathological findings, TNM stage, type of anastomosis, operation time, blood transfusions, oral food intake, postoperative hospital stay, morbidity, mortality both early and late, and survival rate were evaluated. RESULTS: Mean age of the patients was 59.5 years (22-85 years). Sites of the tumors were: cardia 28.9%, cardia and corpus 15.8%, corpus 34.3%, corpus and antrum 18.4%, linitis plastica 2.6%. Histological types were adenocarcinoma (97.4%), and squamous cell carcinoma (2.6%). TNM stages were: stage la 2.6%, stage II 7.9%, stage IIIa 39.5%, stage IIIb 42.1%, and stage IV 7.9%. Esophagojejunostomies were performed manually (34.3%) or by circular staplers (65.7%). Operation time ranged between 3 and 6.5 hours. Gastric tubes were removed on the fourth postoperative day. Average postoperative hospital stay was 12.9 days. Postoperative morbidity was 21%. Wound infection occurred in three patients (7.9%), pulmonary infection occurred in two patients (5.2%) and anastomotic stricture developed in three patients (7.9%). Hospital mortality was 20%. Anastomotic leak occurred in five cases (13.2%) and all died on days 8, 13, 14, 26, and 30. Three patients (7.9%) died of cardiac complications on days 1, 5, and 29. Twelve patients survived for less than one year and eight patients survived for one to two years. Average survival was 10.5 months for 20 out of 30 patients (median 8 months). Ten patients are still alive after 14.3 months. Four patients have been living for less than one year, another four patients for one to two years, and two patients for more than two years. CONCLUSIONS: Total gastrectomy, either performed with a curative or palliative aim, is a safe procedure with acceptable mortality rates. 89.5% of our cases were stage III or IV resulting in a low survival rate. Longer survival rates can be achieved in patients with comparatively earlier stages.

Primary tumors of the small bowel: diagnosis, treatment and prognostic factors.

BACKGROUND/AIMS: The neoplasms of the small intestine are rare and the preoperative diagnosis is difficult. The aim of this study is to review difficulties in diagnosis, treatment options and important prognostic factors. METHODOLOGY: Fifteen patients who underwent surgical resection for intestinal tumors from 1990 to 2000 in the Third Surgical Clinic of Izmir Atatürk Training and Research Hospital were reviewed retrospectively. Age, symptoms, diagnostic methods, operative procedures, and their effects on prognosis were evaluated. RESULTS: Seven patients were male and eight were female. The mean age was 52.3 years (27-77). Eight patients underwent urgent intervention and seven had elective surgery. Three cases were diagnosed as small bowel tumor preoperatively. The radical resection of the small bowel neoplasm was possible in 12 patients (80%), eight of whom being malignant and four of whom being leiomyoma. Three patients with leiomyoma are still alive for 3.5, 6 and 9 years but one patient died perioperatively because of respiratory distress syndrome. Two cases with lymphoma survived for 16 and 37 months while another two have been still alive for 7 and 8 years. The patients who had malignant epithelial tumor, leiomyosarcoma, and malignant mesenchymal tumor survived for 17, 54, and 20 months, respectively. The patient with malignant tumor of endocrine origin has still been living for 3 years. CONCLUSIONS: As a result we concluded that better evaluation of signs and symptoms may facilitate the diagnosis; and the most important prognostic factors are early diagnosis and radical surgery.

Adenocarcinoma of the ileocecal valve: report of a case.

Tumors of the ileocecal valve are rarely mentioned, and are mostly defined radiologically. In this manuscript, we report a case of ileocecal valve adenocarcinoma diagnosed endoscopically. The case is a male patient, 78-years-old, with abdominal pain and weight loss in whom a mass was palpated in the lower right quadrant. Abdominal ultrasound examination followed by colonoscopy and pathological diagnosis revealed adenocarcinoma of the ileocecal valve confirmed by surgical diagnosis. We report this case because of its rarity and because there is no endoscopic image in the medical literature.

Gallbladder perforation: clinical presentation, predisposing factors, and surgical outcomes of 46 patients.

BACKGROUND/AIMS: We aimed to investigate the clinical features and the relation between patient characteristics and the different types of gallbladder perforation and to determine the predisposing factors. MATERIAL AND METHODS: The medical records of 478 patients who received urgent surgical treatment with the diagnosis of acute cholecystitis and underwent urgent surgery in our clinics between January 1997 and November 2008 were reviewed retrospectively. The demographic data of patients, time elapsed from the onset of the symptoms to the time of surgery, comorbidity status, American Society of Anesthesiologists classification, laboratory data, imaging results, surgical procedures, postoperative complications, and postoperative length of stay of the patients were analyzed. RESULTS: There were 46 (9.6%) patients with the diagnosis of gallbladder perforation. Morbidity and mortality occurred in 15 (32.6%) and 7 (15.2%) patients, respectively. Advanced age, male gender, fever >38°C, high white blood cell count, and presence of cardiovascular comorbidity were found to be significant risk factors for gallbladder perforation. CONCLUSIONS: While early diagnosis and early surgical intervention are the keys to managing gallbladder perforation, we suggest that patients having the above-mentioned clinical features should be carefully investigated.

Spontaneous healing of gallbladder perforation: report of a case.

Gallbladder perforation is a serious complication of acute cholecystitis. Spontaneous healing is very rare, and only three cases have been reported in the English literature. In this study, we present a 73-year-old female patient who underwent a laparoscopic cholecystectomy years after a gallbladder perforation and spontaneous healing.