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Leukocytosis after posttraumatic splenectomy: a physiologic event or sign of sepsis?

HYPOTHESIS: Although elevations in white blood cell count (WBC) and platelet count (PC) after splenectomy for trauma constitute a physiologic event, certain WBC and PC patterns help differentiate patients with from those without sepsis. DESIGN: Medical record and trauma registry record retrospective review. SETTING: Academic level I trauma center. PATIENTS: From February 1997 through May 2001, 118 trauma patients underwent splenectomy. Sixty patients developed postoperative sepsis (pneumonia, abdominal infection, septicemia, or severe urinary tract infection) (septic group) and 58 did not (nonseptic group). MAIN OUTCOME MEASURES: White blood cell count, PC, and PC/WBC. RESULTS: After the fifth postoperative day, the WBC of patients with sepsis remained consistently greater than 15 x 10(3)/microL and the PC/WBC remained consistently less than 20. In patients without sepsis, these values remained less than 15 x 10(3)/microL and greater than 20, respectively. Stepwise regression analysis identified 3 independent predictors of sepsis: (1) day 5 PC/WBC less than 20, (2) Injury Severity Score greater than 16, and (3) day 5 WBC greater than 15 x 10(3)/microL. According to a statistical prediction model, the probability of sepsis when all 3 predictors were present was 97.4%; when all 3 were absent, it was 2.5%. CONCLUSIONS: At and after the fifth postoperative day, a WBC greater than 15 x 10(3)/microL and a PC/WBC less than 20 are highly associated with sepsis and should not be considered as part of the physiologic response to splenectomy. In view of the seriousness of postsplenectomy sepsis, these values may be used to increase vigilance and prompt early aggressive treatment.

Adult↗

Incidence and function of residual splenic tissue following splenectomy for trauma in adults.

A limited study of children requiring splenectomy for trauma suggested a 59% incidence of splenosis. We attempted to confirm these results in 40 adult patients with trauma. Residual splenic tissue, from either splenosis or accessory spleens, was seen in 26% of patients who underwent splenectomy for trauma and subsequent splenic scintigraphy. There was no significant difference in serum IgM levels between control patients and splenectomy patients with or without residual splenic tissue. There was also no difference in the percentage of pitted RBCs in splenectomized patients with or without residual splenic tissue. However, both groups of splenectomized patients had significantly higher numbers of pitted RBCs than did controls. These results indicate that the incidence of residual splenic tissue, though significant, is lower than previously reported, and that natural splenosis probably results in a small splenic mass incapable of restoring total splenic function.

Abdominal Injuries↗

Splenectomy in the treatment of hemolytic anemia.

In 113 patients with hemolytic anemia splenectomy was performed, without mortality and with minimal morbidity. Fifty-three patients with congenital spherocytosis and two with congenital elliptocytosis had postoperative increases in hematocrit to normal or near-normal levels. Three patients with pyruvate kinase deficiency and three with thalassemia variants were improved. Splenectomy in 52 patients with autoimmune hemolytic anemia resulted in an excellent response in 64% (no further steroid therapy) and an improved status in another 21% (prednisone requirements, 15 mg/day or less). For conditions other than congenital spherocytosis, in which splenectomy is uniformly of value, a decision to remove the spleen should be based on severity of the hemolytic process, failure to respond to other therapies, and the potential for achieving significant improvement in anemia and other associated cytopenias.

Adolescent↗

High rate of portal thrombosis after splenectomy in patients with esophageal varices and idiopathic portal hypertension.

Data on 126 consecutive patients who were admitted to our clinics from January 1979 to May 1989 were scrutinized to assess changes in portal hemodynamics following splenectomy. Two groups were classified: (1) a group of 106 patients with cirrhosis of the liver and (2) a group of 20 patients with idiopathic portal hypertension (IPH). Portal thrombosis was present in five (25.0%) of the 20 patients with IPH and in two (1.8%) of the 106 patients with cirrhosis of the liver. As seen on celiac arteriography, the mean (+/- SD) diameter of the trunk of the splenic artery and vein was 8.99 +/- 1.55 and 16.2 +/- 3.6 mm, respectively, in patients with IPH, while it was 7.94 +/- 1.28 and 14.2 +/- 3.1 mm, respectively, in patients with cirrhosis of the liver. Changes in portal venous pressure were 78.4 +/- 59.4 mm H2O in patients with IPH and 43.5 +/- 38.7 mm H2O in patients with cirrhosis of the liver. There were no significant differences in the maximum level of thrombocytes in patients with IPH or in those patients with cirrhosis of the liver. These events suggest that portal thrombosis can occur with a significantly higher incidence in patients with IPH than in those patients with cirrhosis of the liver after splenectomy, and a decrease in blood flow in the portal vein may be closely linked to the formation of portal thrombosis after splenectomy in patients with IPH. Preoperative examination of portal hemodynamics must be thorough.

Esophageal and Gastric Varices↗

Comparative response to splenectomy in Coombs-positive autoimmune hemolytic anemia with or without associated disease.

We reviewed our experience in 30 patients with direct Coombs-positive (DAT+) autoimmune hemolytic anemia (AHA) who underwent splenectomy. Twelve patients had idiopathic "warm" AHA (group I) and 18 had AHA associated with systemic diseases (group II). Complete response to splenectomy was defined as having normal hemoglobin and reticulocyte count lasting for at least 6 months without subsequent medical therapy. Subnormal but greater than 50% improvement in these parameters with or without medical therapy was considered to be a partial response. Median age was 64 (23-81) in group I and 68 (23-76) in group II. Median follow-up duration was 18 and 10.9 months, respectively. Nine of 11 (82%) evaluable patients with idiopathic AHA and 3 of 16 (19%) patients with associated disease achieved a complete response. Partial response was obtained in 2 (18%) and 6 (37%) patients in groups I and II, respectively. Both complete-response and overall-response rates were statistically different between two groups (P = 0.001 and 0.02). Postoperative courses of group I patients were uneventful except for one who developed a subphrenic abscess. Five patients in group II developed bacterial infections, which were mostly pneumonias. Our findings indicate that splenectomy is an effective treatment approach with low morbidity and mortality in patients with refractory idiopathic AHA. It should, however, be considered cautiously in AHA patients with underlying systemic diseases because of its decreased efficacy and increased surgical morbidity in this subgroup.

Adult↗

Splenectomy in proximal gastric cancer: frequency of lymph node metastasis to the splenic hilus.

BACKGROUND AND OBJECTIVES: The indication for splenectomy in proximal gastric cancer remains controversial. Splenectomy is performed because of possible lymph node metastasis of the splenic hilus or infiltration/metastasis of the spleen. The purpose of this study was to investigate the frequency of lymph node metastasis to the splenic hilus and metastasis to the spleen in proximal gastric carcinomas. METHODS: In a morphologic study, the frequency of lymph node metastasis to the splenic hilus in 112 patients with proximal gastric cancer was investigated with particular emphasis on its correlation with established clinicopathological characteristics and classifications. Seventy-seven gastrectomy specimens were obtained from men and 35 from women. Patients ranged in age from 20 to 89 years (median 60 years). All patients underwent a potential curative resection (RO resection) with total gastrectomy and pancreas-preserving splenectomy. None of the patients had been treated preoperatively with cytotoxic drugs or radiation. RESULTS: A mean number of three lymph nodes (range 0-8) in the splenic hilus was found in each specimen. The incidence of lymph node metastasis of the splenic hilus was 9.8% (n=11). Lymph node metastasis was only observed in advanced proximal gastric cancer (UICC IIIb/IV) located at the greater curvature and in Borrmann type III/IV cancer with advanced lymph node metastasis. An infiltration of the spleen was seen only in two cases with advanced stages of gastric carcinoma (stage IV). CONCLUSIONS: Based on our data lymph node metastasis to the splenic hilus is rarely observed in proximal gastric cancer and only found in advanced cancer (UICC IIIb/IV) especially in tumors of the greater curvature and of Borrmann type IV cancer.

Female↗

Splenectomy for hematologic depression in lymphocytic lymphoma and leukemia.

Fifty patients with lymphocytic lymphoma and chronic lymphocytic leukemia underwent splenectomy for various combinations of anemia, thrombocytopenia, and leukopenia. All of these patients had advanced lymphoproliferative disease, and most had infiltration of bone marrow by neoplastic cells. Good response in all hematologic parameters was obtained in 27 of 48 evaluable patients. An additional 13 patients responded in one or two parameters; there were only 8 complete failures. The over-all surgical mortality was 8%. The median duration of response was 4 months, and the mean, 7 months. Increased tolerance to further antitumor therapy and a decreased transfusion requirement were seen among responding patients. Those patients with anemia who had evidence of shortened erythrocyte survival and splenic sequestration of 51Cr-labelled erythrocytes uniformly responded with rises in hemoglobin. However, half of the patients with negative splenic sequestration also showed improvement of anemia. Preoperative diagnostic studies failed to predict favorable responses of patients with thrombocytopenia or leukopenia. The classical criteria for the diagnosis of hypersplenism are not applicable in many cases of neoplastic lymphoproliferative disease; splenectomy could have been considered "contraindicated" in most of the patients in this series. We conclude that splenectomy is worth undertaking in patients with lymphoproliferative disease complicated by hematologic depression regardless of marrow findings or the results of other diagnostic studies.

Adult↗

Chronic myelogenous leukemia: management of splenectomy in a high-risk population.

Splenectomies have been performed on 58 patients with chronic myelogenous leukemia (CML) during the last 16 years. For the 27 patients operated upon during the first 12 years, the operative mortality was 26%. Four patients also had to be re-explored for bleeding and three required drainage of subphrenic abscesses. There has been no operative mortality in the 31 patients operated using a standardized procedure during the last four years but two had to be re-explored for bleeding and one required drainage of a subphrenic abscess. The operative risks for leukemic patients are infection, perhaps related to granulocyte abnormalities and hemorrhage in patients with thrombocytopenia or qualitative platelet abnormalities. When the splenectomy in patients with CML is timed with the patient's chemotherapy cycle, the use of local antibiotics and platelet concentrates should permit a safe operation. Survival rates were not comprised even when the patients had their splenectomy during CML-blast crisis.

Adolescent↗

Bacterial infections in pediatric Hodgkin's disease: relationship to radiotherapy, chemotherapy and splenectomy.

The occurrence of bacterial infections (B.I.) among 181 children with Hodgkin's disease (121 with splenectomy, 60 without splenectomy) was analyzed. Twenty-seven B.I. occurred among 22 children and included 15 episodes of bacteremia-meningitis in 14 children. B.I. occurred in all age groups, but bacteremia-meningitis occurred most commonly in splenectomized children 10 years of age or less. The frequency of B.I. in splenectomized children receiving radiotherapy was 1.4%, compared to 18.3% among those receiving chemotherapy (p less than 0.05); the frequency of B.I. among non-splenectomized children receiving radiotherapy was 2.8%, compared to 23.1% among those receiving chemotherapy (p less than 0.05). There was no difference in the probability of B.I. as a function of splenectomy for the corresponding groups, although all cases of Streptococcus pneumoniae and Hemophilus influenzae bacteremia-meningitis in splenectomized children. Overwhelming postsplenectomy bacteremia infection not related to active disease or treatment occurred in 3/121 (2.5%) children, accounting for only one fatality (0.8%).

Adolescent↗

Effects of radiochemotherapy and splenectomy on cellular immunity in long-term survivors of Hodgkin's disease and non-Hodgkin's lymphoma.

Thirty-six patients treated for Hodgkin's disease (HD) or non-Hodgkin's lymphoma (NHL) who had been in complete remission and off all therapy for greater than two years were examined for evidence of immunosuppression. All patients were found to have marked depression of their lymphocyte blastogenic response to phytohemagglutinin (PHA) and of their skin test responses. No abnormalities of serum protein or immunoglobulins were found. T cells were significantly lower than normal in patients who had had Hodgkin's disease, but not in those who had had NHL. B cells, on the other hand, were significantly elevated in both groups. Splenectomy elevated the total lymphocyte count, while those who had not had a splenectomy had lower than normal lymphocyte counts. B cells were elevated while T cells tended to be lower in both splenectomy and nonsplenectomy groups, though only in the nonsplenectomized patients did this reach statistical significance. PHA response tended to be higher in patients with less advanced disease and less extensive treatment than in those with more advanced disease and more extensive treatment, although there was no statistically significant difference. Skin test response though, was shown to correlate well with both stage of disease at diagnosis and extent of treatment.

Adult↗

Response of chronic myelogenous leukemia patients to COAP-splenectomy. A Southwest Oncology Group study.

Eighty-seven patients from 18 institutions with a confirmed diagnosis of chronic myelogenous leukemia were registered on a Southwest Oncology Group protocol for multiagent induction and single-agent maintenance chemotherapy, with randomization to an immunotherapy arm. Elective surgical splenectomy was performed for 42 patients at the completion of 3 months of induction therapy. Final analysis of the study revealed statistically significant survival advantages were correlated with age, splenectomy, the absence of hepatic leukemic infiltrate at the time of splenectomy, and race.

Adolescent↗

Hairy cell leukemia. Durability of response to splenectomy in 26 patients and treatment of relapse with androgens in six patients.

Twenty-three of 26 patients with hairy cell leukemia evaluable for response to splenectomy had significant improvement in anemia, thrombocytopenia, and/or neutropenia. Eight of the 23 had a recurrence of cytopenia after a median response duration of 4 to 5 months (range, 1-22). The remaining 15 patients did not have a recurrence of cytopenia at 20 months median follow-up (range, 1-76). Six patients with postsplenectomy cytopenia were given androgenic steroids. Two of the six had an improvement in anemia and thrombocytopenia, and a third patient had an improvement in neutropenia. It was concluded that, although most patients with hairy cell leukemia have initial improvement in cytopenia with splenectomy, a significant number of them either fail to respond or have recurrent cytopenia after initial response to splenectomy. A trial of androgenic steroids is a reasonable therapeutic option in these patients. Alternative therapies are reviewed and recommendations made.

Adult↗

Splenectomy for end-stage chronic lymphocytic leukemia.

Between February 1980 and December 1985, splenectomies were performed in 13 patients with advanced (Stage III and IV) chronic lymphocytic leukemia (CLL). Patients had advanced disease for a median of 32 months at the time of splenectomy and all were refractory to chemotherapy. All patients were anemic with a median hematocrit of 27.5%; nine patients were thrombocytopenic with a median platelet count of 46,000/microliter. There was no surgical mortality and minimal morbidity. Median hematocrit was 35% at 1 month and 6 months postsplenectomy. Median platelet count in previously thrombocytopenic patients was 261,000/microliter at 1 month and 177,000/microliter at 6 months postsplenectomy. Median survival postsplenectomy in this advanced patient group was 24 months with four patients surviving more than 30 months. Splenectomy is a valuable adjunct to the management of end-stage CLL.

Actuarial Analysis↗

Therapy program for patients with advanced stages of chronic lymphocytic leukemia. Chlorambucil, splenectomy, and total lymph node irradiation.

BACKGROUND: The clinical course of chronic lymphocytic leukemia (CLL) is variable. Staging systems define high risk groups, such as patients with Rai's Stage III and IV and Binet's stage C disease, as having a poor overall median survival. Most combination therapy programs have resulted in similar results. Chlorambucil remains the most commonly used drug, and new drugs, such as fludarabine, are promising. METHODS: Fifty-three patients with poor prognosis CLL (Stage III and IV) underwent chlorambucil treatment at a high intermittent dose. When Stage 0 was obtained, patients were considered responders and kept under surveillance. When the patients stopped responding after one or several courses of chlorambucil, further therapy was performed, including splenectomy (29 patients) and total lymph node irradiation (9 of the 29 splenectomized patients). RESULTS: The overall median survival was 60 months. Thrombocytopenia and anemia were resolved in 55% and 82% of the patients, respectively, after chlorambucil therapy and in 85% and 100%, respectively, after splenectomy. Complications occurred in 34% of the splenectomized population. Total lymph node irradiation was poorly tolerated in 66% of the patients. When this analysis was performed, 24 patients were classified as having Stage 0 disease with no disease progression for a mean of 21 months. CONCLUSIONS: Therapy programs allowing the selection of responders by the successive use of high intermittent dose chlorambucil and splenectomy may be beneficial in treating patients with advanced stage CLL. Because of its toxicity, total lymph node irradiation has no significant therapeutic effect.

Adult↗

Laparoscopic splenectomy for autoimmune hemolytic anemia in patients with chronic lymphocytic leukemia: a case series and review of the literature.

The purpose of this study was to evaluate the safety and efficacy of laparoscopic splenectomy in patients with chronic lymphocytic leukemia (CLL) complicated by autoimmune hemolytic anemia. A series of nine such patients who underwent this procedure at our institution between August 1997 and September 2001 were retrospectively reviewed. Seven of 9 patients who underwent laparoscopic splenectomy for CLL and autoimmune hemolytic anemia achieved a complete response. One patient who initially responded relapsed 12 weeks postoperatively. Therefore, six of 9 patients showed sustained responses with a mean follow-up of 2 years, consistent with other published series. Two patients had no response, one of whom died within 3 weeks of surgery from transformed Hodgkin's disease. The only other postoperative complication occurred in a patient who developed pneumonia. We conclude that laparoscopic splenectomy is a safe and effective treatment for autoimmune hemolytic anemia in patients with CLL who fail medical therapy.

Aged↗

Recurrent thromboembolic disease following splenectomy for pyruvate kinase deficiency.

We report a case of recurrent thromboembolic disease and chronic pulmonary hypertension in an adult patient with pyruvate kinase deficiency who underwent splenectomy as a child. Thromboembolism has been reported as a complication following splenectomy for various hereditary chronic hemolytic anemias. To our knowledge, this association has not been described in patients specifically with pyruvate kinase deficiency. Our patient presented at age 37 with recurrent pulmonary emboli, 36 years after splenectomy for severe hemolytic anemia. Work-up for other hypercoagulable states was negative. The mechanism for hypercoagulability in this condition is unclear but may involve a quantitative or qualitative change in disrupted thrombogenic red blood cell membranes that would normally be removed by the spleen. Clinicians should have a high index of suspicion for thrombotic events in these patients, as early diagnosis and treatment can reduce morbidity and mortality, and chronic anticoagulation may help prevent the sequelae of repeated thromboembolic events.

Adult↗

The effects of splenectomy and glucocorticoids on survival and hepatic uptake of damaged red cells in the mouse.

We have studied the effects of splenectomy and glucocorticoids on the survival and sequestration of Heinz body-containing red blood cells (RBC-HZB). Mice were injected with phenylhydrazine damaged 51Cr labeled isologous red blood cells (RBCs). The spleen removed 36% and the liver 19% of the injected dose after 120 hrs. Red cell survival (T 1/2) fell from 180 hrs for undamaged red cells to 16 hrs for RBC-HZB. Splenectomy resulted in an increase in hepatic uptake of damaged RBCs (36% of the injected dose) and a modest improvement in red cell survival (T 1/2 54 hrs). Treatment of non-splenectomized mice with glucocorticoids reduced the splenic uptake to 16% and the hepatic uptake to 14% of the injected dose. The reduction of splenic upatke was associated with a decrease in splenic mass rather than a decrease in uptake per unit weight of splenic tissue, while reduction in hepatic uptake was associated with both a decrease in hepatic mass and uptake per unit weight. A marked decrease was observed in hepatic uptake and in phagocytosis by Kupffer cells in glucocorticoid-treated splenectomized mice. These data suggest that increased hepatic uptake may decrease the effectiveness of splenectomy in RBC-HZB hemolytic anemia and that glucocorticoids may decrease the hepatic uptake by reducing phagocytosis by Kupffer cells.

Animals↗

Idiopathic thrombocytopenic purpura occurring in Hodgkin disease after splenectomy: report of two cases and review of the literature.

The occurrence of idiopathic thrombocytopenic purpura (ITP) in Hodgkin disease is uncommon. Even more unusual is the development of ITP in Hodgkin disease following splenectomy. This report describes two patients with Hodgkin disease who developed severe ITP with negative platelet antibody studies very soon after splenectomy (20 days in one and three months in the other). A review of the literature of 21 other patients with well-documented ITP and Hodgkin disease indicated that ITP occurring in Hodgkin disease may be more severe and refractory to therapy than ITP unassociated with Hodgkin. Nodular sclerosis or mixed cellularity histologic types of Hodgkin disease were present in all but one of the patients with ITP and Hodgkin disease, and males constituted 65% of cases. There appeared to be no correlation between the onset of ITP and activity of Hodgkin disease. Of five splenectomized patients with Hodgkin disease who developed ITP and were treated with immunosuppressive drugs for thrombocytopenia, three had an excellent response and two had a good response, suggesting that the combination of corticosteroids and immunosuppressive drugs may be indicated at the outset in patients with Hodgkin disease who develop ITP following splenectomy.

Autoantibodies↗