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Biomedical subjects

K Ayyash

Publications and source records attributed to K Ayyash.

8 recordsLinked to original sources
PubMed1991

Drain vs. no drain in primary thyroid and parathyroid surgery.

The need for drainage after primary thyroid or parathyroid surgery was evaluated in a prospective study in which 100 consecutive patients were randomly allocated to drainage or no drainage. Seroma developed in the wound in seven of the 50 patients without drainage and in two of the 50 with drainage. There were no residual effects of the seromas, which resolved spontaneously. The incidence of wound complication was unrelated to the surgeon's opinion on the need for drainage. The study provided no statistical report for routine use of drains in primary thyroid or parathyroid surgery.

Drainage↗
PubMed1989

Choledochoduodenal fistula: a rare complication of duodenal ulcer. Case report.

In a 29-year-old man with pyloric obstruction, plain abdominal radiography showed gas in the biliary tree. Gastroscopy revealed severe duodenal stenosis with a large posterior ulcer, and barium from a test meal passed into the common bile duct. Ten days after truncal vagotomy and gastrojejunostomy, signs of ascending cholangitis appeared. Following antibiotic treatment and cholecystectomy the patient recovered.

Adult↗
PubMed1988

Intraaortic balloon tamponade during hemorrhagic shock in sheep.

Two groups (n = 10 in each) of adult sheep were exposed to hemorrhagic shock resulting in mean arterial pressure (MAP) below 25 mmHg for 10 min. Following that, group A received crystalloids (8% of body wt) during one hr together with supraceliac intraaortic balloon tamponade during the first 30 min, while group B (controls) received crystalloids only. The central circulation was rapidly restored in group A, as indicated by increased MAP and increased systemic vascular resistance (SVR). After deflation of the balloon MAP dropped to the same value as in the control group, while cardiac index increased gradually with volume replacement and was significantly higher at the end of the resuscitation period (60 min) than in the control group (P less than 0.05). Despite a more rapid restoration of central hemodynamics in group A, lactic acidosis was more severe, acute renal failure and neurological complications more frequent, and mortality higher than in the control group. It was concluded that continuous supraceliac aortic occlusion for 30 min had deleterious effects on organs dependent on aortic blood flow distal to the aortic tamponade and may contribute to the development of multiple organ failure after resuscitation from hemorrhagic shock. Further studies are needed to evaluate the effects of intermittent intraaortic balloon tamponade in hemorrhagic shock.

Animals↗
PubMed1988

Spontaneous rupture of a solitary nonparasitic cyst of the liver. Case report.

A case of spontaneous rupture of a solitary nonparasitic liver cyst is described. This rare condition was detected in a 36-year-old woman who underwent cholecystectomy and cyst excision 3 days after appendectomy. The preoperative diagnosis, including the role of HIDA scan (Hydroxyiminodiacetic acid) is discussed.

Adult↗
PubMed1987

Splenic implants: evaluation with radionuclide methods.

The viability of omental splenic implants placed in 16 patients who had undergone splenectomy was assessed with 37 technetium-99m tin colloid studies and five studies with Tc-99m-labeled denatured red blood cells (RBCs). Indications for splenectomy included trauma in eight patients, schistosomal (Bilharzial) portal hypertension in six, splenic artery aneurysm in one, and Wiskott-Aldrich syndrome in one. Studies were done within the 1st month and at various intervals up to 13 months after surgery. Implants in five of eight trauma patients were seen during the 1st month, and implants in seven of seven were seen after 6 months (one patient could not be followed up). Three of six implants in cases of portal hypertension were seen in the 1st month and four of four at 6 months (two patients were not followed up). In two of the five studies with denatured RBCs, Tc-99m tin colloid study was also done 48 hours later; in these cases denatured RBCs were more successful in showing the implants. The authors conclude that radioisotopic procedures are valuable in following up the viability of splenic implants. The "take" of splenic implants in patients with schistosomiasis is equally successful to that in trauma patients.

Adolescent↗
PubMed1986

Ancient neurilemmoma: a pitfall in the cytologic diagnosis of soft-tissue tumors.

A case of ancient neurilemmoma (Schwannoma) is presented that, owing to a severe cell pleomorphism, was falsely interpreted as a malignant spindle-cell sarcoma by fine-needle aspiration cytology. Cytological features of the tumor are given together with its histopathology and electron microscopy findings. The usefulness of electron microscopy on material obtained by fine-needle aspiration biopsies in the diagnosis of soft-tissue tumors is discussed.

Adult↗