"Elliptical rotation flap for pilonidal sinus".
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Humans↗
Biomedical subjects
Coskun Polat
Publications and source records attributed to Coskun Polat.
The effect of low-flow sevoflurane and desflurane on pulmonary mechanics during laparoscopic surgery.
BACKGROUND: This study was designed to investigate the effects of inhaled anesthetic agents on respiratory mechanics with low flow anesthesia in laparoscopic abdominal surgery. Two inhaled anesthetics, desflurane and sevoflurane, have a lower solubility in blood and tissues than all previous volatile anesthetics, and have become the preferred volatile anesthetics for routine surgical procedures. METHODS: Twenty-six patients were examined. Patients were randomly assigned to two groups, to receive sevoflurane (n = 13) or desflurane (n = 13). Tidal volume and ventilation rate were kept unchanged throughout the operation. Intra-abdominal pressure was kept constant at the level of 12 mm Hg. Respiratory mechanics such as peak inspiratory pressure (PIP), respiratory resistance (Rr), and dynamic compliance (Cdyn) measurements were recorded by a Datex-Ohmeda respiratory device (Datex-Ohmeda, Finland) at four timepoints: 5 minutes after mechanical ventilation started (T1), after insufflation of the peritoneum (T2), in the 30-degree Trendelenburg position (T3), and after desufflation of the peritoneum (T4). RESULTS: In our study, desflurane caused a statistically significant increase in PIP and Rr and decrease in C(dyn). When the two groups were compared, Rr values in the deslurane group showed significant increases at T2, T3, and T4 compared to the sevoflurane group (P < 0.05). These values did not change in the sevoflurane group, while PIP significantly increased at T2, T3, and T4 after desufflation in the desflurane group (P < 0.05). Cdyn values decreased significantly at all 4 timepoints in the desflurane group compared to the sevoflurane group (P < 0.05). CONCLUSION: We concluded that respiratory mechanics were affected by desflurane with low flow anesthesia in patients undergoing laparoscopic abdominal surgery. No significant influence on respiratory mechanics was seen with sevoflurane anesthesia.
Adult↗
Giant proliferating trichilemmal tumor of the gluteal region.
BACKGROUND: Proliferating trichilemmal tumors are rare cutaneous neoplasms that show features of typical pilar cysts but also show extensive epithelial proliferation, variable cytologic atypia, and mitotic activity. Proliferating trichilemmal tumors are benign lesions; however, there are numerous reports of malignant proliferating trichilemmal tumors. OBJECTIVE: We present a case of benign proliferating trichilemmal tumor of an 81-year-old woman that was located on the left superior gluteal region for 30 years. METHODS: A tumor measuring 9 x 7 cm was surgically excised with a 1 cm conservative margin of normal tissue. RESULTS: Based on the histopathologic findings of tumor, this case was diagnosed as proliferating trichilemmal tumor. The patient's condition was successfully treated with total excision. CONCLUSIONS: Our case is an unusual presentation of proliferating trichilemmal tumor. Physicians should be aware of this entity while differentiating cutaneous tumor located on the gluteal region.
Aged, 80 and over↗
Sequential periods of preconditioning decrease laparoscopy-related elevations in hepatic TNF-alpha and IL-6 levels in rats.
BACKGROUND: Laparoscopy induces an ischemia/reperfusion (I/R) injury that elicits the production of inflammatory cytokines. The aim of this study was to test whether laparoscopic preconditioning (LP) could change hepatic inflammatory response. MATERIALS AND METHODS: Twenty-four male Spraque Dawley rats were assigned into one of three experimental groups: the control group (C) was subjected to sham operation; the I/R group was subjected to 60 minutes of pneumoperitoneum followed by 45 minutes of desufflation; and the ischemic preconditioning (IP) group was subjected to preconditioning prior to the induction of I/R. Preconditioning was defined as two cycles of 5 minutes of pneumoperitoneum followed immediately by 5 minutes of desufflation. Hepatic tumor necrosis factor alpha (TNF-alpha) and interleukin (IL)-6 levels were evaluated as an inflammatory response. RESULTS: Hepatic TNF-alpha levels increased in the I/R group compared with the C group (9.64 +/- 0.77 pg/mg protein vs. 6.53 +/- 0.48 pg/mg protein, P < 0.01). The decreased TNF-alpha levels in the IP group were not statistically significant when compared to the I/R group (8.09 +/- 0.74 pg/mg protein). Hepatic IL-6 levels increased in the I/R group compared to the C group (4.17 +/- 0.31 pg/mg protein vs. 2.93 +/- 0.20 pg/mg, P < 0.05). IP reduced the hepatic IL-6 levels significantly compared to the I/R group (3.31 +/- 0.22 pg/mg protein vs. 4.17 +/- 0.31 pg/mg protein, P <0.05). CONCLUSION: Laparoscopy induces cytokine response in various organs including the liver. LP could alter the production of cytokines prior to sustained laparoscopic procedures. Preconditioning may be advisable, especially for elderly or other patients with hepatic, renal, or cardiac dysfunction. Further studies are needed to adapt this concept to clinical settings.
Animals↗
A decreasing trend in biliary output in fistulas is more important than cutoff value or duration.
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Biliary Tract Diseases↗
Laparoscopic repair of a morgagni hernia in a child: a case report.
Morgagni hernias are anomalies of the sternal insertions of the diaphragmatic bundles and represent 1% to 4% of all surgically treated diaphragmatic hernias. We present a case of a laparoscopic repair of Morgagni hernia incidentally found in a 4-year-old boy. Primary laparoscopic closure of the defect with interrupted silk sutures was performed. The patient had uneventful recovery and is asymptomatic at 2 months of follow-up. We propose that the laparoscopic approach is feasible and effective treatment of this kind of hernia.
Child, Preschool↗
Laparoscopic treatment of a bilobed gallbladder: a case report and review of the literature.
A double or bilobed gallbladder is a rare congenital anomaly. Because other congenital vascular and biliary duct anomalies may accompany this pathology, open cholecystectomy was thought to be the best treatment of symptomatic patients. In this paper, we report a patient with a bilobed gallbladder whose symptoms were successfully treated with laparoscopic cholecystectomy. We also discuss the characteristics and the embryology of this rare anomaly.
Adult↗
Can laparoscopic hernia repair alter function and volume of testis? Randomized clinical trial.
Testicular atrophy is a sequela of inguinal hernioplasty. The purpose of this study was to evaluate the effects of Lichtenstein (LHR) and laparoscopic totally extraperitoneal (TEP) hernia repair techniques on testicular function and volume. This study is a randomized prospective clinical trial with the blind assessment of outcome. A total of 26 patients who underwent elective herniorrhaphy for groin hernia were included in the study. Each patient was randomly assigned into one of two groups: either TEP or LHR (n = 13 for each). Six of the patients had bilateral hernia (n = 3 for each group). Luteinizing hormone (LH), follicle stimulating hormone (FSH), testosterone levels, and testicular volume by Doppler ultrasonography were detected just before and 3 months after the operation. LH, FSH levels did not change, when compared preoperative and postoperatively in both groups. Testicular volume and testosterone levels were observed to be significantly decreased after TEP when compared with LHR while no significant preoperative changes were observed between those groups. This affected the testicular volume in normal limits. TEP or LHR could not affect LH, FSH, testosterone values, but TEP could lead a decreasing effect on volume of testis in normal limits.
Adult↗
Octenidine hydrochloride in hydatid disease.
Hydatid disease is still endemic in many devoloping countries and continues to be an important cause of morbidity. The objective of this study was to determine the in vitro scolicidal effects of octenidine hydrochloride in different concentrations using different exposure times. After hydatid cyst liquid was left to precipitate for 1 h to obtain cystic sand, various concentrations of octenidine (undiluted, 1% and 0.1% diluted) were added to concentrated hydatid cyst sediments for 5, 10, 15, 20, 25, 30, 45, and 60 min, and scolicidal effects of octenidine were compared with 20% saline and control group for the same times. It was found that undiluted octenidine had a strong scolicidal effect at 15 min compared to saline at 20%. One percent octenidine had a scolicidal effect at 30 min. However, 0.1% octenidine did not have enough scolicidal effect in 1 h. It was concluded that undiluted and 1% diluted octenidine might be used for scolicidal purpose in the treatment of hydatid disease.
Animals↗