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Biomedical subjects

G Kieninger

Publications and source records attributed to G Kieninger.

At least 19 recordsLinked to original sources
PubMed1997

[Primary pancreatic lymphoma. A rare cause of pain-free icterus].

HISTORY AND FINDINGS: A 54-year-old man was admitted because of increasing pain-free jaundice during the preceding two weeks. There was no resistance on palpation of the abdomen. The liver was palpable and of normal consistency, two finger-breadths below the right costal margin. Neither spleen nor lymph nodes were palpable. INVESTIGATIONS: Total bilirubin was 7.9 mg/dl, alkaline phosphatase 467 U/l, gamma-GT 850 U/l. WBC and differential counts were normal. The tumour marker CA 19-9 was raised to 117 U/l. Ultrasonography revealed dilatation of the intra- and extrahepatic bile ducts and a 3 cm echo-poor tumour in the head of the pancreas. Colour Doppler sonography showed both portal and splenic veins to be patent. Endoscopic retrograde cholangiopancreatography demonstrated a mild stenosis of the main pancreatic duct at the transition between the head and body of the pancreas, and a filiform stenosis of the choledochal duct. CT showed an nonhomogeneous head of the pancreas. As the suspected malignant tumour of the head of the pancreas seemed resectable no preoperative fine-needle biopsy was performed. TREATMENT AND COURSE: Whipple's operation (partial duodenopancreatectomy) was performed, but a small tumour infiltration in the portal vein had to be left. The resected specimen surprisingly showed a 2.5 cm centroblastic-centrocytic lymphoma which had infiltrated the head of the pancreas. Postoperative imaging showed para-aortic lymph nodes in the abdomen, maximally 1 cm in diameter. Subsequent radiotherapy was without complication. CONCLUSION: Primary pancreatic non-Hodgkin lymphoma is a rare lesion with special therapeutic consequences. The difficult differential diagnosis from pancreatic carcinoma is usually possible only, in operable cases, from the resected specimen. Every inoperable pancreatic tumour should be biopsied in case it is a malignant lymphoma.

Diagnosis, Differential↗
PubMed1996

-Severe hemobilia after percutaneous transhepatic biliary drainage. Successful treatment by arterial catheter embolization-.

We report on an 44-year-old man with Billroth-I-reoperation and transformation into Roux-Y-anastomosis, which was performed because of ulcer-relapse. The postoperative course was complicated by obstructive jaundice and cholangitis. Ultrasound and computed tomography could not clarify the cause. The subsequently performed percutaneous transhepatic cholangiography showed several small concrements in the biliary tract. For decompression of the dilated bile ducts percutaneous transhepatic biliary drainage was applied. Following that the patient developed recurrent episodes of hemobilia, which made the transfusion of altogether 17 units of blood necessary. Angiography clarified the bleeding source showing leakage of the right hepatic artery. By means of repeated selective transcatheter embolization definite hemostasis was achieved. Transcatheter embolotherapy is recommended as initial treatment to control serious iatrogenic hemobilia.

Adult↗
PubMed1995

Protein-losing enteropathy: first manifestation of sclerosing mesenteritis.

OBJECTIVE: To report the case of an unusual form of protein-losing enteropathy. PATIENT: A 54-year-old patient with hypoechoic tumours resembling lipomas in the mesentery. INTERVENTIONS: Following examination by ultrasound and computed tomography, the well-known intestinal and extra-intestinal forms of protein-losing enteropathy were excluded and a diagnostic laparotomy was performed. The whole mesentery was infiltrated by a large unresectable tumour. Histological examination showed that it was a sclerosing mesenteritis. MAIN OUTCOME MEASURES: Steroid therapy dramatically improved the protein-losing enteropathy. CONCLUSION: Pathogenically, the enteropathy may be interpreted as the result of disturbed lymphatic drainage caused by the sclerosed mesentery.

Adipose Tissue↗
PubMed1989

[Severe cholestasis in congenital choledochus cyst].

A nineteen year old female was admitted to the hospital presenting with sudden onset of severe jaundice and the biochemical constellation of cholestasis. The sonographically and radiologically diagnosis of choledochal cyst was confirmed intraoperatively. The choledochal cyst of type IVa reached from the papilla until the hepatocholedochal junction. A lateroterminal choledochojejunostomy with a Y-Roux-anastomosis was constructed. The patient became symptom-free after the operation.

Adult↗
PubMed1986

[The doubling time of circulating CEA as an individual prognostic criterion of recurrence in patients with gastrointestinal cancers].

In a prospective study of 928 patients with gastrointestinal cancer registered for primary resection, the postoperative carcinoembryonic antigen (CEA) time courses were analysed in connection with disease recurrence. Only patients with established diagnosis of disease recurrence and complete follow-up to death entered the evaluation of prognostic criteria of the CEA time course. In this group the CEA time courses of 103/201 patients with recurrent disease exhibited an exponential increase of the serum CEA concentration, i.e. a linear relationship of log CEA and time, which allowed the calculation of the CEA doubling time. All 103 patients developed metastatic spread and generally exhibited CEA doubling times ranging between 10 and 158 days, in patients developing peritoneal carcinosis up to 343 days. The individual CEA doubling times of patients with recurrent disease who received no treatment (n = 71) correlated well with the times of individual survival after the initial CEA increase of the log CEA phase (rs = 0.812; P less than 0.001) thus confirming the results of a previous retrospective study. When the survival time is expressed in multiples of the individual CEA doubling time (IDT), no patient survived longer than 10.8 IDT. The median value of survival was 5.4 IDT. Patients with metastatic spread who underwent various treatments of recurrent disease (n = 32) survived distinctly longer showing survival times up to 32.6 IDT. This could be confirmed by comparing the observed survival after the initial CEA increase of treated and untreated patients (life table method) exhibiting highly significant differences (P less than 0.001).

Carcinoembryonic Antigen↗
PubMed1986

Prognostic value of preoperative serum CEA level compared to clinical staging. IV. Histological grading and tumor type in colorectal and gastric cancer.

In a clinical investigation of observed postoperative survival, 410 patients with colorectal cancer and 269 patients with stomach cancer have been registered for primary surgical treatment connected with a long-term follow up. Histologic grading and tumor typing were examined as potential prognostic factors and compared with the prognostic information covered by operability, tumor extension, and the preoperative CEA level. Statistical treatment of the data revealed no prognostic significance of the tumor types adenocarcinoma, mucinous, and anaplastic tumours in gastric cancer. Histologic grading specified ranges associated with significant differences in survival of gastric and colorectal cancer patients. However, histologic grading did not provide prognostic information in addition to operability and tumor extension. However, histologic grading gave additional prognostic information to preoperative CEA levels in the range of 0-5 micrograms CEA/1 serum but not in the range greater than 5 micrograms CEA/1. The results indicate that the prognostic information of preoperative serum CEA level is not directly linked to the histologic grade of a tumor.

Carcinoembryonic Antigen↗
PubMed1985

[Carcinoembryonic antigen: diagnosis and tumor progression in gastrointestinal tumors].

Tumour progression in 340 patients with resected gastrointestinal primary tumours was monitored using the gradual increase in carcinoembryonic antigen (CEA) in serum. The commencement of the rise in CEA generally preceded clinical detection of the cancer by several months. The degree to which the rise in CEA correlated with the recurrence of cancer was investigated. There was a marked difference in the distribution of the rises in CEA between local tumour growth and distant metastases. CEA increases of more than 1 microgram CEA/l serum in 10 days occurred exclusively in patients with distant metastases. There was a further marked difference in the distribution of the CEA increase between the group with liver metastases and the groups with peritoneal carcinomatosis or other metastases. The site of the primary tumour had no influence on the CEA increase during formation of metastases.

Carcinoembryonic Antigen↗
PubMed1985

The clinical validity of circulating tumor-associated antigens CEA and CA 19-9 in primary diagnosis and follow-up of patients with gastrointestinal malignancies.

The clinical validity of monitoring the tumor markers carcinoembryonic antigen (CEA) and CA 19-9 were investigated in 602 patients with colorectal, gastric, and pancreatic carcinomas. Sensitivity and specificity of the tests were evaluated preoperatively as well as in the postoperative follow-up for early detection of disease progression and recurrence. At a 95% level of specificity as calculated from a group of 150 patients with benign diseases, the CEA test with monoclonal antibody had a preoperative sensitivity of 39% in colorectal cancer and 21% in gastric cancer. On the other hand, CA 19-9 had a sensitivity of 19% in colorectal cancer, 21% in gastric cancer, and 89% in pancreatic cancer. In the postoperative follow-up it was found that a combination of both tumor marker tests was most profitable in gastric carcinomas, yielding an increase of sensitivity from 59%-94%, showing a high degree of complementarity. The gain in sensitivity provided by the CA 19-9 test over the CEA-test in colorectal cancer was very low. The gain in sensitivity, however, provided by the CEA test over the CA 19-9 test in pancreatic carcinoma was also very low. On the basis of these results it has to be recommended that cases with pancreatic carcinoma are to be monitored most efficiently with the CA 19-9 test, whereas in cases with colorectal cancer the CEA test should be used primarily. However, in gastric cancer the combined use of CEA and CA 19-9 represents a highly valuable basis for monitoring the course of disease.

Antibodies, Monoclonal↗
PubMed1985

Prognostic value of preoperative serum CEA level compared to clinical staging: III. An approach to scoring of prognostic factors in colorectal cancer.

In a clinical study of observed postoperative survival of colorectal cancer patients, we investigated the application of a risk score based on tumor-related prognostic parameters. Six hundred seventy-four patients have been registered for primary surgery of colorectal cancer since 1974 who did not receive further postoperative treatments. The prognostic parameters included operability, tumor extension, and preoperative serum carcinoembryonic antigen (CEA) level. The scoring system was based on the average death-rate ratios of subgroups of patients and their age and sex-matched reference groups derived from the general life table of the population of the Federal Republic of Germany. The individual score sums of the patients exhibited score sum ranges which characterized groups of patients with entirely different observed survival. The prediction of individual survival after primary operation was only partly possible. In the plot of individual survivals vs individual score sums, a marginal risk zone was obtained which evidently represents the zone of maximum expected survival of patients who do not receive further postoperative treatment.

Aged↗
PubMed1985

Eighty-four potential second-look operations based on sequential carcinoembryonic antigen determinations and clinical investigations in patients with recurrent gastrointestinal cancer.

In our study of patients with resected primary gastrointestinal cancer, slope analysis of the post-operatively increasing carcinoembryonic antigen time courses signaled relapse in about 80 percent of the patients up to 12 months before positive clinical diagnosis. In 29 patients, clinical confirmation of the relapse could be obtained only after second-look surgery. Slope analysis generally differentiated localized from metastatic disease and therefore also predicted the site of relapse. A first evaluation of 84 patients with potential cases of second-look operations provided evidence for a significant increase in survival. Recently, the evaluation of individual carcinoembryonic antigen doubling times was used to derive an individual prognosis since doubling times strongly correlated with the survival of untreated patients. On this basis, it was clearly possible to show the benefit of second-look operation, since patients with resectable recurrences exhibited longer survival times compared with patients with similar carcinoembryonic antigen doubling times without treatment. Moreover, the introduction of monoclonal antibodies with increased specificity for malignant states, has facilitated the selection of patients for second-look operation because unspecific carcinoembryonic antigen elevations are less frequent and recurrent disease can be predicted more reliably due to the higher carcinoembryonic antigen increments associated with malignant growth.

Actuarial Analysis↗
PubMed1985

Differentiation of disease recurrence in various primary malignancies using CEA slope analysis.

CEA slope analysis was performed for patients with various primary malignancies who developed recurrent disease. In 340 cases CEA slopes could be calculated, and in 289 cases correlated with distinct diagnosis of recurrent disease. Local recurrence showed a slope range of 0.02-15.2 micrograms CEA increase/l serum/10 days (median = 0.28) and metastatic spread a slope range of 0.03-456 micrograms CEA increase/l serum/10 days (median = 0.98). Subgroups of patients with metastatic spread to the liver, bone, peritoneum and other sites had distinct CEA slope distributions independent of the primary tumors. Comparable slope ranges were found with two different commercially available kits, one a radioimmunoassay (antiserum) and the other enzyme-immunoassay (monoclonal antibody).

Carcinoembryonic Antigen↗
PubMed1984

[Clinical significance of the circulating tumor-associated antigen CA 19-9 in cancers of the digestive tract].

The relevance of the tumour associated antigen CA 19-9, defined by a monoclonal antibody, was investigated in 471 patients with carcinomas of the gastrointestinal tract and in 100 patients with benign diseases of the abdomen. In the early stages of gastric and colorectal carcinomas the sensitivity of the CA 19-9 test was between 10 and 25% and increased to about 50% in tumour stage IV. Detection rate in pancreatic carcinoma was 88% and thus markedly higher. The specificity of the test, as against the group of benign abdominal diseases, was 95%. Postoperative CA 19-9 follow-up showed unaltered individual baseline values in 192 out of 196 cases without clinical evidence of tumour progression. However, in 40 out of 61 cases (66%) with recurrencies or metastases continuous increases of CA 19-9 were observed which preceded the clinical relapse by up to 16 months (median 2 months). Concomitant determination of CEA increased sensitivity to 90% due to partial complementary information. This was particularly pronounced in gastric carcinomas in whom continuous increases of CEA involved only 58% of all patients with tumour progression. By simultaneous determination of both tumour markers this ratio rose by increases of both or one antigen to 83%.

Adult↗
PubMed1983

[Compression syndrome of the celiac trunk].

Compression syndrome of the celiac trunk or Dunbar's syndrome is usually caused by an overly large medial arcuate ligament of the diaphragm. Symptoms are postprandial periumbilical pain, the pathogenesis of which, in spite of abundant collateralization of the celiac trunk, has not yet been clarified. The diagnosis should be established by elimination via lateral aortography. Therapy consists of incision of the ligament, creation of a aorto-celiac bypass, or reinsertion of the celiac trunk. Treatment, however, is successful in only 41% of the operated patients.

Adult↗