Drainage catheter with self-retaining device at both ends.
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Catheterization↗
Biomedical subjects
W R Pitts
Publications and source records attributed to W R Pitts.
A 20-year experience with ileal conduits: the fate of the kidneys.
During the last 20 years 242 patients have undergone ileal conduit urinary diversion at our hospital. Although only 11 per cent of the renal units showed damage after the ileal conduit there was a progressive risk of renal deterioration with increasing time and obstruction was its major cause.
Adolescent↗
Solitary infected renal cyst: report of 2 cases and review of literature.
Two cases of suppuration in solitary renal cyst are reported. The clinical history of acute pyelonephritis, avascular mass lesion of the kidney with ipsilateral pleural effusion (triad) seen in a female patient of child-bearing age is characteristic of this condition. Surgical management is satisfactory. Our Case 1 is the first reported case of solitary infected cyst that ruptured retroperitoneally, clinically mimicking a subphrenic abscess.
Adult↗
Radical retroperitoneal surgery: a 25-year experience.
A review of 210 radical retroperitoneal excisions performed through an abdominal or flank thoracoabdominal incision showed these procedures to be relatively safe. The flank approach had less morbidity and provided better exposure of the renal hilus and suprarenal areas. Pulmonary complications in the flank thoracoabdominal incision were reduced by closing the thorax with an indwelling pleural drainage tube. The flank thoracoabdominal approach is suitable for all radical retroperitoneal excision when extensive bilateral renal exposure is not needed.
Adolescent↗
Horseshoe kidneys: a 40-year experience.
The results presented show that horseshoe kidney is a non-fatal anomaly of renal development that can be managed successfully by standard urologic procedures. Most clinical problems are caused by hydronephrosis and renal calculi. Careful attention to the anatomy, vasculature and drainage from renal pelves at the time of operation will assure good postoperative results. The Foley Y-V pyeloplasty is a highly effective procedure for relief of ureteropelvic junction obstruction in horseshoe kidneys. As with other genitourinary anomalies the presence of a horseshoe kidney should prompt a thorough urologic evaluation.
Adolescent↗
A review of 100 renal and perinephric sonograms with anatomic diagnoses.
Sonography is a non-invasive safe, convenient, quick and pain-free diagnostic modality, which can differentiate fluid masses from solid tumors and give a 3-dimensional representation of organs and masses in the retroperitoneum by biplanar sections. Sonography depends on the fact that high frequency sound has many characteristics of light and is, in fact, a sophisticated method of transillumination. A review of the first 100 consecutive patients who had sonography and anatomic diagnosis of the renal or perinephric abnormality shows the versatility and potentials of sonography. Of these 100 sonograms of renal and perinephric abnormalities 92 were correct by anatomic diagnosis.
Abscess↗
Congenital megaloureter: a review of 80 patients.
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Adolescent↗
Posterior atlanto-axial dislocation without fracture. Case report with successful conservative treatment.
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Accidents, Traffic↗
Sonographic evaluation of renal masses: correlations with angiography.
The value of sonography in the diagnosis of renal masses in a series of 119 consecutive histologically confirmed cases is presented. Sonography correctly identified 92% of the cystic and 90% of the solid renal masses. Causes of incorrect diagnoses included lesions smaller than 2 cm, masses in the left upper pole, diffusely infiltrating urothelial tumors, echogenic fatty lesions (early in our experience), and acute abscesses and hematomas. Angiography in the same series of cases correctly diagnosed 80% of the cystic and 88% of the solid renal masses. Avascular lesions were the main cause for equivocal or incorrect angiographic diagnoses. We conclude that sonography is more definitive than angiography in the diagnosis of avascular masses, while angiography excels when the lesion is vascular or small. Combining the sonographic and angiographic findings allowed accurate diagnosis in over 99% of the cases.
Angiography↗
Cocaine-induced myocardial ischemia and infarction: pathophysiology, recognition, and management.
As cocaine abuse has become widespread, it has been associated with various cardiovascular complications, including angina pectoris, myocardial infarction, and sudden cardiac death. Cocaine's principal effects on the cardiovascular system are mediated via alpha-adrenergic stimulation and include (1) an increase in the determinants of myocardial oxygen demand (heart rate and systemic arterial pressure), and (2) a concomitant decrease in myocardial oxygen supply (caused by vasoconstriction of the epicardial coronary arteries). beta-adrenergic blocking agents may exacerbate cocaine-induced coronary arterial vasoconstriction, thereby increasing the magnitude of myocardial ischemia. In contrast, nitroglycerin and verapamil reverse cocaine-induced hypertension and coronary arterial vasoconstriction; therefore, they are the agents of choice in treating patients with cocaine-associated chest pain.
Adrenergic beta-Antagonists↗