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Biomedical subjects

D G Spigos

Publications and source records attributed to D G Spigos.

At least 73 records · Page 4Linked to original sources
PubMed1982

Partial splenic embolization in the management of thalassemia major.

Six patients with beta-thalassemia major underwent partial splenic embolization as an alternative to splenectomy. One patient required 2 embolizations. All 6 patients showed a marked reduction in transfusion requirements. Transfusion requirements fell to a level within that reported by other authors following total splenectomy, although significantly above that of a group of patients from the same institution who underwent total splenectomy. It is felt that this procedure provides an acceptable alternative to splenectomy in these patients with the possible preservation of some splenic immune function.

Adolescent↗
PubMed1982

Ultrasonic scanning during operation for renal calculi.

Real-time B-mode ultrasound scanning was used during operations for nephrolithiasis. Scanning was done before pyelotomy or nephrotomy to confirm the presence of calculi. For stones in an intrarenal position, requiring an incision through renal parenchyma for extraction, ultrasound permitted guidance for an exploratory needle to localize the calculi precisely. Once the needle tip was in the proximity of the stone a nephrotomy incision was made along the needle track. This procedure enabled the use of relatively small nephrotomy incisions and reduced search time and tissue manipulation. After calculi were extracted ultrasonography was used to make certain that all stone fragments were removed. Ultrasound was considered helpful in 15 of 16 operations.

Adult↗
PubMed1982

Comparison of B-mode real-time ultrasound scanning with arteriography in detecting vascular defects during surgery.

Real-time B-mode ultrasonography was compared with arteriography to determine its usefulness in detecting vascular defects immediately after lower extremity bypass graft reconstruction. Both procedures were employed in 40 patients to locate strictures, thrombi, and intimal flaps. Defects were discovered in 12 patients. Four of these defects were considered clinically insignificant and not worth the risk of reentry; of the remaining eight patients in whom significant defects were seen on ultrasonography, arteriography, or both, seven were reexplored. The accuracy of ultrasonography and arteriography was 94.4% and 83.3%, respectively. It is concluded that ultrasonography is comparable with arteriography in the detection of vascular defects during surgery.

Angiography↗
PubMed1982

Anatomic and hemodynamic evaluation of percutaneous transluminal angioplasty.

Of 34 balloon angioplasties of the lower extremity performed during a two year period, 29 were observed for three to 21 months. Hemodynamic measurements were performed preangioplasty, immediately postangioplasty and at three month intervals thereafter. Immediately, postangioplasty arteriograms were performed upon all patients. Late follow-up arteriograms were obtained for selected patients. Immediate anatomic success was achieved in 93 per cent of procedures, but early hemodynamic improvement occurred in only 62 per cent of the angioplasty procedures. At a mean follow-up time of nine months, continued success was noted in only 48 per cent of the procedures. Late failure with iliac artery procedures was demonstrated in only 18 per cent of the patients, while, in femoropopliteal angioplasty, late failure occurred in 50 per cent of the procedures. The results of this study and of others indicate that femoropopliteal balloon angioplasty in not a durable procedure. The durability of iliac artery angioplasty requires further evaluation.

Angiography↗
PubMed1981

Identification of a parathyroid adenoma by operative ultrasonography.

During surgery, real-time ultrasound scanning accurately localized a parathyroid adenoma posterior to be the superior pole of the right thyroid lobe. This was made feasible because of the ultrasound features of parathyroid tissue and current developments in ultrasound instrumentation.

Adenoma↗
PubMed1981

Ultrasonic imaging during biliary and pancreatic surgery.

Real-time ultrasound scanning was used during operations on the biliary tract and pancreas. The principal application in biliary surgery was to evaluate the common bile duct for presence of calculi. Our initial experience indicates that operative ultrasonography compares favorably with operative cholangiography. In pancreatic operations, ultrasound has been helpful in the management of pseudocysts and chronic pancreatitis. For pseudocysts, ultrasonography has indicated cyst wall thickness and the presence of adjacent anatomic structures. Ultrasound has distinguished the fluid loculations of the pseudocyst from swelling due to inflammatory edema. In surgery for chronic pancreatitis, ultrasonography has revealed the size and location of pancreatic ducts. This information has been useful in helping select sites for internal drainage of pseudocysts and in chronic pancreatitis with ductal dilatation. Operative ultrasonography is a relatively simple procedure which has the potential for providing the surgeon with early information and decreasing the need for dissection and radiographic imaging.

Biliary Tract Diseases↗
PubMed1980

Splenic embolization.

While transcatheter embolization of the spleen has shown promise in the treatment of a wide spectrum of disorders, the incidence of serious complications with this technique has limited its use as an alternative to operative splenectomy. In our institution 41 patients were treated with a modified technique involving partial splenic embolization, careful antibiotic prophylaxis, and adequate pain control. There was no mortality and only few instances of clinically significant complications: a splenic abscess in one patient, pancreatitis in one patient, severe pleural effusions in two patients, and pneumonia in five patients.

Adolescent↗
PubMed1980

Real-time ultrasonography during biliary surgery.

High resolution real-time B-mode ultrasound scanning using a sterile 7.5 MHz transducer was performed during operations on the biliary tract. Ultrasound is useful for locating the common bile duct in the presence of acute inflammation and other abnormal anatomy, detecting small calculi in the gallbladder with a thickened wall, measuring the caliber of the common bile duct, and identifying calculi in the common bile duct. Intraoperative ultrasonography can permit earlier and more precise appraisal of operative findings and, thereby, decrease operative time.

Biliary Tract Diseases↗
PubMed1980

Epidural anesthesia: effective analgesia in aortoiliofemoral arteriography.

The efficacy of epidural anesthesia for control of pain experienced by patients undergoing peripheral arteriography was studied in 77 patients. In 70 patients, arteriographic studies were completely painless. Two patients experienced severe pain, while five felt different degrees of limited pain and/or burning sensation. Arteriograms in the 77 patients were excellent because the analgesia allowed injection of large volumes of contrast, the patients did not move during the injection because of motor block, and finally the sympathetic block probably resulted in peripheral vasodilatation. We believe that epidural anesthesia represents the method of choice in the control of pain during arteriographic examinations of the lower extremities.

Anesthesia, Epidural↗
PubMed1980

Ultrasonography of the abdominal wall in the diagnosis of spigelian hernia.

Gray scale ultrasonography of the abdominal wall was used in the evaluation of patients suspected to have spigelian hernia. This diagnostic technique was found to be accurate in displaying defects in the spigelian fascia. Application of this technique to patients with mild abdominal tenderness may result in the detection of more cases of spigelian hernia and also prevent unnecessary exploration in patients in whom the sonogram is normal.

Abdominal Muscles↗
PubMed1980

Hydrocalycosis. A report of two cases.

Hydrocalycosis is the progressive cystic dilatation of a major calyx due to infundibular obstruction. Two cases of hydrocalycosis are herein presented and several diagnostic procedures are discussed. A correct diagnosis can be made by proper use of newer radiographic techniques. Treatment depends upon the etiological and complicating factors.

Adult↗