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O Mann

Publications and source records attributed to O Mann.

29 records · Page 2Linked to original sources
PubMed1994

Diagnosis of chronic pancreatitis by means of a sonographic secretin test.

The pancreatic duct can be demonstrated today by sonography in about 90% of all persons examined. In 159 persons, aged 18-79 yr, we measured sonographically the pancreatic duct diameter before and after intravenous secretin injection. After secretin stimulation, 20 healthy controls and 90 patients without pancreatic disease showed a distinct pancreatic duct dilatation of 93 and 94% of basal duct diameter lasting only several minutes. No distinct secretin-induced duct enlargement was observed in 35 of 40 patients with chronic pancreatitis. Patients with chronic pancreatitis and circumscript duct stenosis even had a marked and longer-lasting duct dilatation of 156% of basal duct diameter after secretin stimulation. This study showed a high reliability of the sonographic secretin test in the diagnosis of chronic pancreatitis--even in an early stage--recording a sensitivity of 92.5%, a specificity of 93%, and a predictive value of 84%.

Adolescent↗
PubMed1994

Prospective study of the incidence of ultrasound-detected hepatic hematomas due to percutaneous Menghini needle liver biopsy and laparoscopy-guided Silverman needle biopsy.

Recently, a high incidence of sonographically detected hepatic hematomas following percutaneous liver biopsy and laparoscopy-guided liver biopsy has been reported. For this reason a prospective study in 178 patients was performed. The patients were examined by ultrasound before and 24 hours after percutaneous liver biopsy using the 1.4 mm-Menghini needle (n = 107) and by laparoscopically-guided biopsy with the 2.5 mm-Silverman needle (n = 71). Four of the 107 patients (4%) who underwent percutaneous Menghini biopsy displayed hepatic hematoma on ultrasonography, and in 2 of these cases the hematoma was > 6 cm in diameter and persisted for more than seven months. In the group of patients who underwent laparoscopy-guided Silverman biopsy (n = 71) a liver hematoma occurred twice (3%). Both hematomas were small and disappeared within several days. There was no need for special therapeutic interventions due to complications. In contrast to recent data about Tru-cut and JAM-Shidi biopsy, the results of this study indicate that percutaneous Menghini biopsy and laparoscopy-guided Silverman biopsy are relatively safe diagnostic procedures.

Adult↗
PubMed1993

[Prognostic value of long-term pH-metry in the B-II resected stomach].

In a prospective study we investigated the clinical value of ambulatory 24-hour pH monitoring in the stomach after Billroth-II-resection. Recorded data of 10 patients with and 11 patients without ulcer recurrence after gastric resection were compared. The pH medians of the record periods "total time", "supine", "upright", "fasting" and "postprandial" were evaluated. Further the cumulative recording time of pH levels pH < 1, pH < 2, etc. was determined and compared in both groups. A pH median less than 2.8 "supine" indicated a postoperative ulcer recurrence with a sensitivity of 90% and specificity of 81%. A pH median less than 2.6 "fasting" predicted an ulcer relapse with a sensitivity of 90% and specificity of 72% (p < 0.001). In patients with ulcer recurrence pH was < 4 in more than 30% of total recording rime, pH < 5 in more than 45% and pH < 6 in more than 75% (sensitivity 90%, specificity 100%). According to these findings 24-hour pH monitoring seems to be useful for the prognostic assessment of the further course of ulcer disease after B II-surgery of the stomach. Thus pH monitoring results may be helpful in defining patient groups which may be candidates for acid reducing therapy to prevent ulcer recurrence.

Adult↗
PubMed1985

Giardiasis as a chronic disease.

In an effort to better describe the incidence and characteristics of chronic giardiasis in an urban private practice outpatient setting, we reviewed our experience of 65 cases. In the entire group, the mean duration of symptoms was 1.9 years. A history of foreign travel was described by 45%. No association with homosexuality was noted. Chronic giardiasis, defined as that population symptomatic for six months or longer, constituted 58% of the entire group (38 cases). For these patients the mean duration of symptoms was 3.3 years. When compared to acute giardiasis, an increased frequency of constipation and upper gastrointestinal complaints was noted in the chronic population. Symptomatic cure was obtained in 71% of chronic cases and 93% of acute. Palliative results were noted in 18% of chronic cases and 4% of acute. We conclude that giardiasis is frequently a chronic disease in our population with symptoms lasting years. The incidence is similar in both sexes and a history of foreign travel is often absent. A disproportionate incidence in male homosexuals was not noted in our study.

Adult↗
PubMed1981

Right ventricular outflow obstruction from thrombus with small peripheral pulmonary emboli.

A patient is described with clinical features of massive pulmonary embolism and a normal pulmonary angiogram. At necropsy, a large thrombus obstructed right ventricular outflow. A right atrial or right ventricular angiogram is suggested in patients suspected of having pulmonary embolism when a pulmonary angiogram shows the pulmonary trunk and main right and left pulmonary arteries to be normal.

Adult↗