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Fatih Kantarci

Publications and source records attributed to Fatih Kantarci.

16 recordsLinked to original sources
PubMed2003

The effect of an acute decrease in serum estrogen concentration on vessel walls: determination with color and pulsed Doppler ultrasound.

The aim of this study was to determine the effects of an acute decrease in serum estrogen concentration on endothelial function in women with surgically induced menopause through the use of color Doppler ultrasonography. There were 40 women scheduled to undergo total abdominal hysterectomy and bilateral salpingo-oopherectomy who participated in the study; 15 women not undergoing surgery also participated as a control group. Color Doppler ultrasonographic examinations of each surgical patient were obtained 3 days prior to and 7 days after surgery. Baseline measurements of the brachial arteries, including peak systolic velocity, end-diastolic velocity, true mean velocity, arterial diameter, and volume flow, were obtained for each patient. After baseline measurements were established, hyperemia was induced by inflating a blood pressure cuff on each patient's upper arm to suprasystolic pressures for 5 min. To evaluate endothelium-dependent vasodilation, the ultrasonographic appearance of the brachial artery was evaluated after the cuff was deflated and removed from the arm. Measurements of peak systolic velocity, end-diastolic velocity, true mean velocity, arterial diameter, and volume flow were obtained, and were repeated at 1, 3, 5, 10, and 20 min subsequent to removal of the blood pressure cuff. The differences between baseline and maximum values of each Doppler parameter after the cuff deflation were calculated. No significant differences were identified in terms of laboratory findings or systolic and diastolic pressures in pre- and postoperative status of surgical patients, or between surgical patients and the control group. A significant difference in serum estradiol levels during pre- and postoperative periods ( P<0.001) was detected. No significant difference in serum estradiol levels was detected among preoperative surgical patients and members of the control group ( P=0.72). All net changes detected within each group during reactive hyperemia were statistically significant. No significant difference in values was detected among pre-, postoperative, and control subjects. Our study reveals that acute decrease in serum estrogen level does not appear to affect endothelial function; thus, we assume that this is mainly due to the result of postoperative surgical stress.

Blood Flow Velocity↗
PubMed2003

Percutaneous drainage for treatment of infected pancreatic pseudocysts.

BACKGROUND: Infection of pancreatic pseudocysts is a potentially fatal complication that must be treated immediately. Despite numerous published reports about percutaneous treatment, the effectiveness of percutaneous catheter drainage (PCD) of infected pancreatic pseudocysts is still under discussion. METHODS: In this study, 30 patients (17 women) with 30 infected pancreatic pseudocysts were administered local anesthesia and underwent PCD performed with the use of a single-step trocar technique with computed tomographic guidance. The patients' ages varied from 27 to 74 years (mean age, 45 yr). The etiology was acute pancreatitis in 18 patients, chronic pancreatitis in 11 patients, and surgical trauma in 1 patient. RESULTS: No complications related to the procedure occurred in our series. The success rate was 96% (29 of 30 patients), with no recurrence during follow-up, which ranged from 2 to 58 months (mean follow-up, 27.2 mo). One patient had unsuccessful PCD and was subsequently treated surgically. CONCLUSION: Our findings indicate that PCD is a safe and effective front-line treatment for patients with infected pancreatic pseudocysts.

Adult↗
PubMed2003

Duplication of the superficial femoral artery diagnosed primarily on the basis of color Doppler ultrasonography.

Variations of the lower extremity venous system are common, and radiologists may frequently be confronted with such variations during daily clinical practice. However, variations in the arterial system of the lower extremity are extremely rare. The profunda femoris artery and arteries of the cruris are mainly subject to variation. This report describes an extremely rare arterial variation, duplication of the superficial femoral artery (SFA), in terms of the radiologic findings, clinical importance, and embryologic basis.

Femoral Artery↗
PubMed2002

Renal transplant ureteral stenosis: treatment by self-expanding metallic stent.

We report the use of a metallic stent in a transplant ureteral stenosis. A 28-year-old man with chronic renal failure due to chronic pyelonephritis, who received a living-donor renal transplant, presented with transplant ureteral stenosis. The stenosis was unresponsive to balloon dilation and was treated by antegrade placement of a self-expanding Memotherm stent. The stented ureter stayed patent for 3 years. It may be reasonable to treat post-transplant ureteral stenosis resistant to balloon dilation with self-expanding metallic stents. However, long-term follow-up is required to evaluate the efficacy of this treatment.

Adult↗
PubMed2002

Emergency endovascular management of pulmonary artery aneurysms in Behçet's disease: report of two cases and a review of the literature.

his report describes two patients with a known history of Behçet's disease in whom massive hemoptysis developed from rupture of pulmonary artery aneurysms. The high recurrence rate of complications related to pulmonary artery aneurysms and even the aneurysms themselves due to inadequacy of medical therapy and the disadvantages of surgical treatment make these aneurysms candidates for endovascular management. The pulmonary artery aneurysms reported here were successfully treated with endovascular embolization using n-butyl cyanoacrylate. Pulmonary artery aneurysm embolization in Behçet's disease has been reviewed in the light of relevant literature.

Adult↗
PubMed2002

Carotid intima-media thickness in surgical menopause: women who received HRT versus who did not.

OBJECTIVE: The effects of hormone replacement therapy (HRT) in the natural menopausal period have been extensively studied. However, these effects have almost none been studied in purely surgical menopause. The aim of this study was to measure intima-media thickness (IMT) of carotid arteries bilaterally in two groups of surgical menopausal women who received HRT versus who did not. METHODS: A B-mode ultrasound unit was used for the measurements of the IMTs of carotid arteries in two groups. Measurements of Group 1 (n=65, untreated group) were compared with those of Group 2 (n=70, treated group), in 2-years of follow-up. Patients in Group 2 received daily doses of 0.625 mg of oral conjugated estrogen preparates. Serum estradiol levels, lipid profiles, and blood pressures were measured, pre and postoperatively. For the statistical analyses in terms of differences of IMTs between two groups, general factorial analysis of variation was used. RESULTS: Among preoperative values of low-density lipoprotein (LDL), high-density lipoprotein (HDL), cholesterol, systolic and diastolic blood pressures, estradiol, and age, only the estradiol values showed significant difference between both groups. The statistical results concerning the postoperative IMT differences for both groups showed that there was a statistically significant difference when comparing both groups, showing an increase in IMT in Group 1. CONCLUSION: In surgical menopausal women, the direction of the HRT effect is in agreement with evidence from earlier studies on the effects of HRT in natural menopausal women.

Administration, Oral↗
PubMed2002

Embolization of profunda femoris artery branch pseudoaneurysms with ethylene vinyl alcohol copolymer (onyx).

This report describes the use of a new embolic agent, Onyx, which is composed of ethylene vinyl alcohol copolymer dissolved in 8% dimethyl sulfoxide, in the endovascular transcatheter embolization of traumatic profunda femoris artery branch pseudoaneurysms in three cases. Two of the cases involved massive thigh swelling after penetrating injury and the other involved massive hemorrhage at the site of a surgical fixator pin. Diagnostic angiography revealed pseudoaneurysm formation of the profunda femoris artery branches in all cases. Immediate control angiography after the embolization procedures demonstrated complete closure of the pseudoaneurysms. During the follow-up period there was no recurrent bleeding. The advantages of Onyx over conventional liquid embolic agents and coils are discussed.

Adolescent↗
PubMed2002

Effects of oophorectomy and hormone replacement therapy on the pulsatility indices of hepatic and renal arteries.

OBJECTIVE: To investigate the flow velocity waveform changes of the hepatic and renal arteries in women with surgical menopause who received hormone replacement therapy versus those who did not. METHODS: Eighty women who had undergone surgical menopause were divided into 2 groups. The first group (n = 38) consisted of patients who did not receive estrogen treatments after surgery; patients in the second group (n = 42) did receive treatments. The hepatic and renal arteries of patients in both groups were examined by duplex Doppler ultrasonography before the commencement of hormone replacement therapy and after 2 years of treatment, and the pulsatility indices were calculated. RESULTS: No significant differences were detected in the renal and hepatic artery pulsatility indices of patients in the estrogen treatment group (group 2) before and after total abdominal hysterectomy and bilateral salpingo-oophorectomy (P > .05). No significant differences in preoperative and postoperative hepatic arterial pulsatility indices were detected among patients in group 1 (P > .05). Renal artery pulsatility indices measured before and after total abdominal hysterectomy and bilateral salpingooophorectomy did show a statistically significant difference in group 1 (P < .001). In addition, a statistically significant difference was detected before and after surgery in both groups when pulsatility indices were measured at the second-year control dose. CONCLUSIONS: Hepatic arterial pulsatility indices are not affected in postmenopausal women, but renal artery pulsatility indices rise to some extent in women not receiving hormone replacement therapy.

Adult↗
PubMed2002

Treatment of iatrogenic internal carotid artery laceration and carotid cavernous fistula with endovascular stent-graft placement.

The risk of fatal injury of the internal carotid artery (ICA) and surrounding anatomy during transsphenoidal surgery for pituitary adenoma is the most severe potential complication associated with this particular approach. We present a case in which iatrogenic injury to a patient's ICA and resultant carotid cavernous fistula and massive hemorrhage was successfully managed with the emergency placement of an endovascular stent-graft. Both findings in the relevant literature and practical considerations concerning both stent-grafts and other more commonly used options for the treatment of iatrogenic ICA injury are discussed.

Adenoma↗
PubMed2001

Transcatheter coil embolization of an intercostal artery to pulmonary artery fistula.

An 18-year-old asymptomatic male was found to have a high-flow systemic arterial to pulmonary arterial fistula fed by dilated lower intercostal arteries draining via pulmonary artery toward the left main pulmonary trunk. Transcatheter Guglielmi Detachable Coil (GDC; Target Ther, Fremont, Calif.) embolization was performed. Transcatheter embolization is a reasonable and less invasive mode in the treatment of systemic artery to pulmonary artery fistula, and GDC offers more precise coil placement over other conventional coils.

Adult↗
PubMedDate not supplied

Lower-extremity deep venous thrombosis after upper-extremity port catheter placement: an unusual complication.

We describe the case of a woman with breast carcinoma who experienced deep venous thrombosis of the right lower extremity after placement of a double-lumen central venous chemotherapy port catheter in the left upper extremity. Color Doppler sonography revealed a linear tubular structure within the right common femoral vein and sonographic features of thrombosis, suggesting deep venous thrombosis secondary to displacement of the port catheter.

Arm↗
PubMedDate not supplied

Endovascular management of basilar artery aneurysms associated with fenestrations.

BACKGROUND AND PURPOSE: Arterial fenestrations are associated with saccular aneurysms that are often difficult to treat with open surgical techniques. We evaluated our experience with endovascular treatment of such aneurysms. METHODS: Ten consecutive patients with 11 basilar artery aneurysms associated with fenestrations were treated with coils by means of the endovascular route between November 1994 and February 2000. All patients underwent endovascular embolization by the femoral approach, under general anesthesia. Twelve embolization procedures were perfomed in the 10 patients. RESULTS: Nine proximal and two distal basilar artery fenestration aneurysms were treated successfully. The embolization was complete in 10 of the 11 aneurysms. It was incomplete in one case, and complete occlusion could not be achieved at the second attempt. There was one regrowth at 1-year follow-up, which was successfully treated again. Four of the aneurysms were treated initially with balloon remodeling, whereas one aneurysm with regrowth and one with incomplete occlusion were treated with balloon remodeling at the second embolization procedure. In one case, one limb of the fenestration was sacrificed. CONCLUSION: Endovascular treatment of basilar artery aneurysms associated with fenestrations appears to offer advantages over traditional open surgical techniques.

Adult↗