[Functional Dyspepsia and infection by Helicobacter pylori: a causal relation does not exist].

Unlabelled: The role of Helicobacter pylori (Hp) in Non Ulcer Dyspepsia (NUD) has been a controversial issue.

Objectives: 1) To determine the frequency of Upper Gastrointestinal Endoscopy (UGE) in patients suffering NUD in whom endoscopy was indicated in our Service, 2) To determine the prevalence of infection by Hp in patients with NUD in whom endoscopy was done, 3) To find an association of clinical and historical facts among patients with and without Hp infection.

Population And Sample: 91 consecutive patients, free of esophageal or gastro-intestinal organic disease by endoscopic criteria from a total of 132, in a period of six months.

[History of patients with pelvic floor dysfunction].

Objectives: 1) To determine differences between sexes; 2) To determine differences by sex and age groups in symptom onset, time of evolution, clinical forms and probable associated causes.

Population And Sample: 83 consecutive patients with diagnosed PCP (X age = 50.9 SE 2.

Random walk with an exponentially varying step.

A random walk with exponentially varying step, modeling damped or amplified diffusion, is studied. Each step is equal to the previous one multiplied by a step factor s (01/s relating different processes.

[Massive pleural effusion in liver cirrhosis without ascites].

We present two patients with masive pleural effusion, asociated to cirrhosis. There was no clinical evidence of ascites, and in the first case it didn't even show up in the CT scanning. Al other posible causes were discarded and the therapeutic response was analysed.