CD 200 - A useful marker in chronic B lymphoprolipherative disorders

Background: The diagnosis and management of the patients with chronic lymphoproliferative diseases have become dependent on immunological criteria. Flow cytometry immunophenotyping is used for rapid and specific diagnosis but there are cases when we are not facing a typical immunophenotype, so there is a constant need to find new markers and new combinations of markers that would allow the improvement and the development of our diagnosis. Aim: Our aim was to evaluate CD 200 expression in different B-cell chronic lymphoproliferative disorders. CD200 is a membrane glycoprotein belonging to the immunoglobulin superfamily and the over-expression of CD200 has been reported in a number of malignancies, including CLL, as well as on cancer stem cells. Methods: We analyzed the CD200 expression in 122 patients diagnosed with chronic lymphoproliferative disorders (100 patients with CLL, 10 patients with splenic marginal zone lymphoma (SMZL), 10 patients with MCL and 2 patients with hairy cell leukemia), in the Department of Hematology of the University Emergency Hospital, Bucharest. We performed immunophenotypical analysis of peripheral blood and bone marrow aspiration on BD FACS Calibur flowcytometer. Results: CD200 was brightly expressed in all 100 CLL patients (100%). In SMZL patients, CD200 was dim positive (40%-60%), in patients with HCL. CD200 was also bright positive (96% and 97%) and in patients with MCL CD200 was negative (1-10%); CD 200 was significantly higher in CLL patients compared with other B-cell chronic lymphoproliferative disorders. We found 14 patients with CD19, CD5 positive population and CD23- , but with high expression of CD 200. Cyclin D1 was negative on bone marrow biopsy in 13/14 of these patients. (1/14 patients were without bone marrow involvement); Conclusions: CD200 has a great impact in diagnosing B- chronic lymphoproliferative disorders, especially when we want to determine the origin of a CD19, CD5 positive population and distinguish between CLL and MCL. CD 23 is a reliable marker in those cases, but, as we showed, CD23 might have a lower specificity than CD200 for CLL. We added CD200 in our panels in order to diagnose chronic lymphoproliferative disorders, not to replace CD 23, but to improve and save time in our diagnostic process. The high expression of CD200 in CLL and HCL could open the option for new- targeted therapy (anti-CD200).

Spectrum, antibiotic susceptibility and virulence factors of bacterial infections complicating severe acute pancreatitis

Secondary infection of pancreatic necrotic tissue and peripancreatic fluid is a serious complication of acute pancreatitis resulting in significant morbidity and mortality. The aim of this study was to find out the spectrum of bacterial infections, their antibiotic susceptibility patterns and virulence features in patients with severe acute pancreatitis (SAP). A total of 19 patients with acute pancreatitis were consecutively selected from 153 clinical cases of septic abdominal surgical emergencies (age 29-80, 12 males, 7 females) admitted during 2009-2011, in the First Surgical Clinic of the University Emergency Hospital of Bucharest. All 19 SAP cases were submitted to pre-operatory antibiotic empiric treatment. Ten cases were culture negative, in spite of the positive microscopy registered in eight of them. The rest of nine cases were culture positive, 17 different bacterial strains being isolated and identified as belonging to eight aerobic and four anaerobic species. Polymicrobial infection was seen in six patients and the etiology was dominated by Gram-negative bacilli, followed by gut anaerobic bacteria, attesting their colonic origin. The susceptibility testing of the isolated strains confirmed in vitro in all cases the efficiency of the antibiotics that had been used in the empiric pre-operatory treatment. Out of 19 cases submitted to pre-operatory empiric treatment, 14 proved a favorable evolution and five a lethal outcome. The host depending factors (sepsis and other co-morbidities), as well as the aggressivity of the isolated microbial strains (mediated by the presence of different factors implicated in adherence, toxicity and invasion) were found to contribute to the unfavorable, even lethal clinical outcome of SAP cases. In spite of all theoretical controversies, the antibiotic therapy remains at present a very important therapeutic mean for the SAP treatment; although it cannot solve the septic necrotizing pancreatitis in 100% of cases, however, associated with the surgery and all other medical means of intensive therapy, the antibiotic treatment can influence the clinical evolution to the benefit and recovery of patients in a significant number of cases.

[Emergency pancreatoduodenectomy for severe iatrogenic duodenal injury--case report]

We present the case of a male patient admitted for high flow biliary fistula (> 2000 ml/24h) as a consequence of a prior right nephrectomy by lumbar approach. The patient was operated after the failure of the medical conservative treatment and continous declining medical status. We noted the complete absence of the gastric antrum, duodenum I and II with the intraperitomeal direct display and opening of the Vater papilla, witch was difficult to identify unless common bile duct (CBD) was catheterized by supraduodenal choledocotomy. We performed emergency pancreatoduodenectomy with a good postoperative outcome , excepting a residual postnephrectomy abscess, witch was consequently evacuated and drained. The patient left the clinic 28 days postoperatively. The two years after follow up notes that the patient is in a good condition

Therapeutic efficacy of duloxetine versus selective serotonin reuptake inhibitors in irritable bowel syndrome

Introduction

Selective serotonin reuptake inhibitors (SSRIs) are frequently used for irritable bowel syndrome, while duloxetine was evaluated in other similar psycho-somatic syndromes.

Objective

This prospective, single-blind trial intends to compare the efficacy of SSRIs and duloxetine in the treatment of irritable bowel syndrome.

Methods

A group of 22 patients, 15 female and 7 male, mean age 50.2, diagnosed with irritable bowel syndrome according to the Rome II Diagnostic Criteria (1992) were treated with either an SSRI (escitalopram 20 mg/day, n = 6 or fluoxetine 40 mg/day, n = 6) or duloxetine (90 mg/day, n = 10). Patients were evaluated initially and every 4 weeks, for 6 months, using Hamilton Anxiety Rating Scale (HAMA), Hamilton Depression Rating Scale 17 items version (HAMD), Clinical Global Impressions -Severity/Improvement (CGI-I/S) and a 7-points Likert scale (LS) for self-evaluated severity.

Results

Duloxetine improved anxiety and depressive symptoms, as reflected by the significant decrease of HAMA (−17.6 points, p < 0.05) and HAMD scores (−18.2 points, p < 0.05) at week 12. SSRIs also reduced the affective symptoms, significantly to baseline (p < 0.05), but less than duloxetine (−14.3, −15.2) at week 12, with no significant difference at week 24 (p = 0.120). The CGI-I results paralleled the decrease of HAMD and HAMA, while the LS evaluation of gastrointestinal symptoms improved similarly in both groups, with no significant difference (p = 0.09).

Conclusion

Duloxetine is an efficient agent in the treatment of irritable bowel syndrome, because it decreases the mood symptoms more rapidly than SSRIs. The overall efficacy of SSRIs and duloxetine at 6 months is nevertheless similar.

Cognitive behavioral therapy focused upon communicational skills enhancement in anorexia nervosa- a case series

Introduction

Anorexia nervosa (AN) has been approached from multiple medical, social and psychological perspectives, but it still stands as a major challenge for the clinician, due to its resistance to treatment, low therapeutic compliance and severe complications.

Objective

To asses the efficacy of an interpersonal focused cognitive-behavioral therapy (CBT) in patients diagnosed with AN.

Methods

We enrolled in 12 weeks, 3 sessions a week, CBT program a number of three patients, females, admitted successively in our departments, diagnosed with AN, who didn’t have previously any kind of psychotherapy. The first patient was 22, diagnosed with AN-restricting type, had a BMI of 14.5 and a score on Eating Attitudes Test (EAT) of 34. The second patient was 19, presented AN-binge eating-purging, had a BMI of 14 and an EAT score of 35. The third patient was 25, had also AN-binge eating-purging, a BMI of 15 and an EAT score of 32.

Results

The first two patients responded well to the CBT program, but the first signs of recovery (EAT decreases of at least 5 points and increases of at least 1 unit on BMI) appeared after 10 weeks (15 sessions). The third patient discontinued rather fast the psychological treatment. The follow up (12 weeks after endpoint) showed relapse in one CBT-treated patient and a severe status of the patient that discontinued psychotherapy.

Conclusion

The CBT focused on communicational skills enhancement is beneficial in patients with AN, but responses appear rather late and need to be boosted by frequent follow-up sessions.

Incidence of axis I and axis II dual diagnosis in hospitalised patients with somatization disorder

Introduction

Somatization disorder is frequently associated in epidemiologic trials with depressive, anxiety, other somatoform or substance related disorders, as well as with personality disorders. An examination of psychiatric comorbidity in patients diagnosed with somatization disorder is strongly advised due to the impact of these associated conditions over the prognosis and treatment.

Objective

To establish the incidence of psychiatric dual diagnosis in hospitalized patients with somatization disorder.

Methods

A group of 37 patients, 22 female and 15 male, mean age 45.9, were evaluated using Structured Clinical Interview for DSM Axis I (SCID-I) and Axis II (SCID-II) disorders at the admission in our department for a diagnosis of somatization disorder. All patients included in this trial were known with somatization disorder for at least one year prior to this admission.

Results

Patients diagnosed with somatization disorder presented mostly depressive disorders (46%, n = 17), anxiety disorders (37.8%, n = 14), substance related disorders (16.2%, n = 6) and personality disorders (67.5%, n = 25). A more detailed analysis on axis I established major depressive disorder as the most frequent diagnosis (37.8%, n = 14), followed by panic disorder (27%, n = 10) and alcohol dependence (13.5%, n = 5), while on axis II the histrionic (21.6%, n = 8) and obsessive-compulsive (19%, n = 7) personality disorders were the most frequently associated conditions. A number of 21 patients presented at least three axis I and/or II simultaneous diagnosis (64.8%).

Conclusion

The most frequently comorbidities in somatization disorder are major depressive disorder and panic disorder on axis I, as well as histrionic and obsessive-compulsive personality disorder on axis II.

Valproate and cognitive therapy combined treatment efficacy in pathological gambling

Introduction

Valproate is used in psychiatry as a mood-stabilizer and has efficacy in controlling impulsivity, therefore it seems to be a useful pharmacologic agent in pathologic gambling.

Objective

To assess the efficacy of valproate in the treatment of pathologic gambling.

Methods

A group of 13 patients, 9 male and 4 female, mean age 32.6, diagnosed with pathologic gambling, according to the DSM-IV-TR criteria, received treatment with flexible dose of valproate (600–1400 mg/day, mean dose 850 mg/day) and 2 times/week cognitive therapy sessions. Patients with other axis I and II conditions were excluded. Also, none of these patients received valproate or structured cognitive therapy prior to this trial. Patients were monitored for 3 months using monthly administered Gambling Symptoms Assessment Scale (G-SAS), Clinical Global Impressions (CGI) and 10 points self-evaluated Visual Analogue Scale (VAS).

Results

Valproate was associated with a mean decrease of 10.5 points on G-SAS at week 12, compared to baseline (p < 0.05), while the CGI decreased with only 1.3 points (p = 0.122) and the VAS improved with 2.3 points (p < 0.05). The combined treatment was associated with good tolerability profile, since no drop-out was recorded in the study group due to side events and only 7 reports of mild and medium adverse events were recorded.

Conclusion

Valproate treatment associated with cognitive therapy could be a useful strategy in the management of pathologic gambling. Valproate's tolerability profile is good and the cognitive therapy offer an opportunity to ventilate the negative automatic thoughts, emotional distress and low impulse control strategies.

Bacteriological aspects implicated in abdominal surgical emergencies

The purpose of the present study was to establish the microbial etiology of abdominal surgical emergencies as well as the relationship between the bacterial etiology and the virulence factors produced by the respective isolated strains. 110 bacterial strains were isolated from 100 randomized clinical cases, operated during 2009-2010 in the First Surgical Clinic of the University Hospital of Bucharest. The clinical cases (sex ratio 52 M/48F aged between 22-85 years old) were classified into three risk groups, as related to their severity. The isolated strains were characterized by cultural, microscopic and biochemical methods. After identification, the bacterial strains were investigated for their virulence potential (adherence to abiotic surface and production of soluble virulence factors).

RESULTS

The specimens were collected from different clinical pathologies: diffuse acute peritonitis, biliary duct infections, severe acute pancreatitis followed by septic processes etc. The 110 bacterial (72 aerobic and 38 anaerobic) strains were isolated only in 70 out of 100 cases. Out of these 70 cases, in 45 already submitted to pre-operatory empiric broad spectrum antibiotic therapy, there were isolated 74 strains, whereas in 25 cases without any treatment, there were isolated 36 strains. The etiology was either mono-specific or multi-specific (aerobic-anaerobic associations, especially in old persons). Out of the 30 negative culture cases, 16 were already submitted to pre-operatory parenteral empiric antibiotic therapy at the moment of specimen collection. The aerobic etiology was dominated by Enterobacteriaceae. The most frequent anaerobic species belonged to Clostridium, Peptococcus and Bacteroides genera. It is to be mentioned that the isolation of Bifidobacterium and Veillonella spp. in 11 (10%) severe cases of the studied abdominal surgical emergencies is pleading for the fact that in certain conditions, bacteria belonging usually to commensal gut flora can turn to pathogenic becoming responsive for life-threatening cases. All aerobic and anaerobic strains exhibited some of the following virulence factors: mucinase, esculinase, pore-forming toxins (lecithinase), proteolytic enzymes, adherence ability (slime factor). The presence of these virulence factors (VF) could explain the severity of the clinical aspects.

CONCLUSIONS

The bacterial etiology of the abdominal surgical emergencies exhibited a very large spectrum, the highest number of strains being of endogenous origin (Enterobacteriaceae and anaerobic strains). It was demonstrated that the isolated strains produced (cell associated and soluble) VF proving in this way their role as important virulence sources in the hospital environment and explaining the large diversity and severity of the clinical abdominal pathology. The results of the present study are also pleading for periodical readjustments of the pre-operatory empiric antibiotic therapy.

[Duodenal carcinoid]

Carcinoid tumors of the duodenum are extremely rare. We present two cases (observation) of duodenal carcinoid tumors. The main clinical manifestation in both cases was upper GI tract hemorrhage associated to severe anemia.The tumors were high dimension (2.5 cm and 6.5 cm respectively) and were discovered by upper GI endoscopy. First observation presented a lymph node metastasis and the second one a massive invasion of the pancreas. In both cases the diagnosis was precised only postoperatively, through histological and immunohistochemical analisys. In the first observation we performed local transduodenal resection and in the second one cephalic duodenopancreatectomy. After six months we had a reintervention at the first case for a retroduodenal carcinoid tumoral reoccurrence--extirpation completed with total gastrectomy for neuroendocrine carcinoma. Despite the locoregional aspect of advanced evolution of the disease, the long-term evolution of the patient was satisfactory. Both patients are alive 42 months respectively 15 months after the operation. Carcinoid tumors of the duodenum are indolent and their impact on survival is uncertain.

[Short bowel syndrome due to a severe complication related to Meckel's diverticulum]

A 17 years old patient, admitted and operated in emergency with acute diffuse peritonitis which had been had the onset four days before. During surgery, a huge volvulus of the small intestine is revealed due to an adherence between Meckel's diverticulum and mesentery, with large intestinal necrosis. Extended enterectomy is performed with jejunostomy. The postoperative outcome is difficult due to severe metabolic insufficiencies which are managed by intensive therapy measures. The patient is readmitted to surgery and an anastomosis between 30 cm jejunum and 20 cm ileum is performed. Then the outcome is good, with digestive function recovery and weight gain. Unfortunately, the patient died one year after surgery, due to severe haematological and neurological disorders caused by the mal-absorbtion syndrome.