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Biomedical subjects

S Kadir

Publications and source records attributed to S Kadir.

At least 109 records · Page 6Linked to original sources
PubMed1979

Angiographic diagnosis and control of postoperative bleeding.

The use of diagnostic and therapeutic angiography for postoperative bleeding which began with its application for bleeding following GI surgery can be ezpanded to almost all other areas of the body. Severe postoperative hemorrhage that previously required a second operation can now be successfully managed by the use of intraarterial or intravenous vasoconstrictors or transcatheter occlusion, thus significantly reducing patient morbidity and mortality. In those patients where a reexploration becomes necessary, diagnostic angiogarphy is a useful guide and helps to tailor the operative procedures.

Aged↗
PubMed1978

Aneurysms of the pancreaticoduodenal arteries in association with celiac axis occlusion.

Four patients with aneurysms of the inferior pancreaticoduodenal artery are described. All had occlusion of the celiac axis at its origin, with the inferior pancreaticoduodenal arcades serving as a collateral pathway. We propose that the association of the celiac axis occlusion and aneurysms in the collateral supply via the pancreatic arcades is more than coincidental. Awareness of this relationship may be of significance in planning therapeutic intervention.

Adolescent↗
PubMed1978

Catheter dislodgement: a cause of failure of intraarterial vasopressin infusions to control gastrointestinal bleeding.

Catheter dislodgement is a major cause of technical failures in intraarterial vasopressin therapy for gastrointestinal bleeding. Ten such cases were observed in the past five years. In seven patients catheter dislodgement led to recurrent bleeding during vasopressin infusion. In one patient aortic infusion of vasopressin caused recurrent bleeding and reversible acrocyanosis of the feet, and in two patients vasopressin infusion into the left renal artery resulted in chest pain and hematuria. Catheter dislodgement should be suspected if bleeding that was initially controlled recurs during vasopressin infusion.

Adolescent↗
PubMed1978

Intestinal volvulus: angiographic findings.

Intestinal volvulus may be the underlying process in patients presenting with intestinal ischemia. In 3 patients, angiographic findings of volvulus were erroneously interpreted as indicating occlusive or nonocclusive intestinal ischemia. In a fourth, the correct preoperative diagnosis was suggested by angiographic findings. Volvulus should be suspected at angiography by the whirlpool arrangement of the mesenteric arterial branches, the delayed filling and emptying of the arteries, and the intense opacification of the bowel wall. Familiarity with the angiographic picture of intestinal volvulus is essential for early diagnosis and for prompt initiation of appropriate therapy.

Aged↗
PubMed1977

Pancreaticoduodenal artery aneurysm simulating carcinoma of the head of the pancreas.

Aneurysms of the pancreaticoduodenal arcades, although uncommon, may rupture and produce symptoms similar to those of pancreatic carcinoma. We describe one patient with a ruptured interior pancreaticoduodenal artery aneurysm and a large hematoma in the pancreatic head. He had a three-week history of painless jaundice. Angiography was essential in establishing the diagnosis and defining a vascular road map preoperatively. The surgical management involved resection of the aneurysm and vascular reconstruction.

Aneurysm↗
PubMed1977

Angiographic management of gastrointestinal bleeding with vasopressin.

Selective arteriography and infusions of vasopressin have become valuable tools for localization and therapy of acute gastrointestinal hemorrhage. Gastric mucosal hemorrhage can be treated successfully in about 84% of cases. Gastric ulcers can be treated successfully in about 65-70%. Acute colonorectal bleeding is controlled in about 90% of patients.

Aged↗
PubMed1977

The effects of vasopressin on the radiation response of cultured mammalian cells.

Since vasopressin is known to exert radioprotective effects in vivo, its effects on mammalian cells in vitro were examined. No toxicity or changes in cellular plating efficiency were observed at concentrations up to 10 units/ml. There was no direct radioprotective effect attributable to exposure of the cells to vasopressin prior to and during irradiation.

Animals↗
PubMed1977

Extramedullary hematopoiesis in Paget's disease of bone.

Two cases of Paget's disease of bone with radiographic manifestation of extramedullary hematopoiesis are described. While extramedullary hematopoiesis usually occurs as compensatory phenomenon in response to anemia, this was not the case in our patients. We believe pathologic fractures led to extrusion of hematopoietic marrow and resultant tumorous extramedullary hematopoiesis.

Aged↗
PubMedDate not supplied

Urinary tract injury in patients with blunt chest trauma: the value of postaortographic abdominal radiographs.

Patients who require thoracic aortography for blunt decelerating chest trauma often sustain injury to other organ systems due to the magnitude and mechanism of injury. Hospital records and radiographs of 117 consecutive, injured patients studied with thoracic aortography were evaluated to assess the accuracy, value, and limitations of postaortographic abdominal plain radiography for detection of major genitourinary injury. In summary, major urinary tract injury occurred with a frequency of 6%, enough to justify a rapid, low cost, noninvasive screening procedure. Postaortographic plain films of the abdomen were found to be an accurate (95%) screen for detection of major urinary tract injury. The sensitivity for detection of patients with renal injury was 100%. The ability to correctly predict patients who may be safely observed (no significant renal injury) was 100%. One limitation of this technique was the poor diagnostic quality found in 15% of the abdominal radiographs, most commonly caused by excessive superimposed bowel gas. Postaortographic pelvic radiographs were believed to be valuable for detection, but not exclusion, of bladder rupture.

Adult↗
PubMedDate not supplied

Digital subtraction spinal cord angiography in patients undergoing thoracic aneurysm surgery.

Thoraco-abdominal aortic replacement can be associated with a high incidence of paraplegia. Because the major source of blood supply to the thoraco-abdominal spinal cord is through the anterior spinal artery of Adamkiewicz, reimplantation of intercostal and lumbar arteries could reduce the risk of this operation. We used intraarterial digital subtraction angiography (DSA) for preoperative localization of the anterior spinal artery in 12 patients. This vessel was successfully located in 9 patients, with DSA providing good quality images in all patients. Preoperative knowledge of the origin of this vessel was helpful in the planning of the operation in all patients, but its efficacy as a routine procedure was not established.

Adult↗
PubMedDate not supplied

Embolization of a mesenteric artery aneurysm: case report.

Gelfoam embolization of a jejunal artery branch aneurysm was performed using an open-ended guidewire. The outflow vessel was embolized first, followed by occlusion of the feeding artery, to exclude collateral filling.

Aneurysm↗
PubMedDate not supplied

Arteriographic study of variant arterial anatomy of the upper extremities.

Anatomic variations in the major arteries of the upper extremities have been reported in 11-24.4% of individuals. In a review of 100 upper extremity arteriograms, we found an overall incidence of 9%. High origin of the radial artery from the brachial artery was the most frequently encountered anomaly occurring in 7% of individuals and accounting for 78% of all anatomic variations. Origin of the radial and ulnar arteries from the axillary artery was an infrequent finding occurring in only 2% of extremities.

Adult↗
PubMedDate not supplied

Bleeding following endoscopic sphincterotomy: angiographic management by transcatheter embolization.

Transcatheter embolization is a well-established and effective method for the control of bleeding from the upper gastrointestinal tract and often represents the preferred alternative to more invasive surgical management. The applications of this technique for the management of bleeding following endoscopic sphincterotomy have not been reported previously. Of five patients referred for arteriography with life-threatening postsphincterotomy bleeding, active bleeding from branches of the gastroduodenal artery was demonstrated in four. Embolization of this vessel with Gelfoam controlled the bleeding in all three patients in whom it was attempted. Arterial stenosis and spasm precluded such treatment in one patient. The fifth patient was not bleeding at the time of arteriography. There were no complications from these procedures. Our experience shows that postsphincterotomy bleeding can be safely and effectively controlled by transcatheter embolization, thereby avoiding surgery which is associated with significant morbidity and mortality in this setting.

Adult↗