Comparison of the therapeutic effects of tri-iodothyronine and methylprednisolone during early sepsis in laboratory animals.

BACKGROUND: Despite major advances, the treatment of sepsis is still a challenging problem for surgeons. This study was aimed to compare the therapeutic effects of methylprednisolone and tri-iodothyronine replacement therapy during an early sepsis. MATERIAL AND METHODS: Forty male Wistar albino rats weighing 300-340 g were divided into the Control, CLP, CLP/MP, CLP/T3 and CLP/MP/T3 groups. The Control group underwent a sham operation. Only cecal ligation and puncture was performed in the CLP group. The CLP/MP groups received an intramuscular injection of (MP) methylprednisolone (30 mg/kg) at one and half hour before CLP. The CLP/T3 group was given an intraperitoneal (IP) injection of tyroid hormone (T3) 0.4 µg/100 g immediately after CLP. The CLP/MP/T3 group was given IM injection of MP 30 mg/kg before CLP and IP injection of T3 0.4 µg/100 g after CLP. Hemavet changes, blood cultures, peritoneal bacteria content, hormonal alterations and histopathologic changes of intestinal, lung and liver tissue were used to asses the possible therapeutic effects of MP and T3 during early sepsis. RESULTS: A septic insult resulted in significant alterations on hemavet values, free T3, free T4 and cortisol levels, peritoneal bacteria content and intestinal lung and liver tissue samples of the CLP group. Hemavet changes and peritoneal inflammation findings were significantly limited in the CLP/T3 and CLP/MP/T3 groups. Histopathologic changes had no significant difference between the groups during an early sepsis. CONCLUSION: Compared to the MP replacement therapy, therapeutic effects of T3 replacement therapy have been found significantly more promising (Tab. 1, Fig. 10, Ref. 49).

Which surgical procedure offers the best treatment for pilonidal disease?

PURPOSE: Our aim was to determine the most effective surgical procedure for treatment of pilonidal disease, by comparing different surgical techniques. METHODS: A total of 354 patients who underwent operation for pilonidal disease were enrolled in this prospective study. The data included patient's demographic characteristics, age, gender, body mass index, occupation, smoking, concomitant diseases, surgeon's experience, wound-healing problems (wound separation and infection), time to return to work, and development of recurrence. RESULTS: Of the 354 patients, total excision + primary closure was performed in 133 (37.6%), D-flap in 101 (28.5%), Karydakis technique in 74 (20.9%), and Limberg flap surgery in 46 (13%). The male/female ratio was 8.5:1, which is a statistically significant difference (p < 0.05). The average follow-up period was 37 months (range, 12-97 months); during this period, wound-healing problems were observed in 70 (19.7%) patients, and 34 (9.6%) patients developed recurrence. There was no difference in the rate of recurrence of pilonidial disease between procedures done by trainees and staff surgeons. Recurrence rates were similar for all four treatment methods (7.5-13.5%). Wound-healing problems were higher for D-flap than for other methods (p = 0.027). The average time to return to work with the D-flap method was longer than that for the other methods (p < 0.01). Recurrence increased 14.44-fold following the development of wound infection. Higher recurrence rates were also noted in obese patients (8.10-fold) and in females (6.72-fold). CONCLUSIONS: Despite the increasing volume of data on the treatment of pilonidal disease, the optimal treatment has yet to be established.

Serum D-lactate: a useful diagnostic marker for acute appendicitis.

BACKGROUND/AIMS: Acute appendicitis is the most common acute surgical infection seen in emergency department. The present study aims to evaluate the sensitivity, specificity, negative predictive value (NPV) and positive predictive value (PPV) of the serum D-lactate levels as a marker for the diagnosis of acute appendicitis. D-lactate is the stereoisomer of the mammalian L(+)-lactate, and is produced by indigenous bacteria (Escherichia coli, Klebsiella, Bacteroides, Lactobacillus) in the gastrointestinal tract. Once obstruction occurs, appendix is a good medium for bacterial proliferation, and ischemic injury leads to an increase in D-lactate levels. METHODOLOGY: A total of thirty-two consecutive patients with the suspicion of acute appendicitis were prospectively included in the study. Patient characteristics, ultrasonography (US) and laboratory assessment including white blood cell (WBC), C-reactive protein (CRP), D-lactate and intraoperative findings, histology results, clinical outcome were evaluated. RESULTS: WBC level above 10(9)/L had an accuracy of 66%, whereas a CRP level above 5 mg/L had an accuracy of 75%. We observed that when the D-lactate level was greater than 0.25 mmol/L in acute appendicitis, the specificity was 60%, the false negative rate was 25% and the accuracy was 90%. The false negative rate of CRP (67%) was higher than that of D-lactate levels (25%). Ultrasound had a sensitivity of 96%, specificity 40% and accuracy 87% in our study. CONCLUSIONS: We found positive correlations between serum D-lactate levels and acute appendicitis and serum D-lactate had the lowest false negative rate among the other parameters. Therefore, we conclude that D-lactate might be a simple and reliable diagnostic marker for appendicitis.

Outcomes of emergency surgical treatment in malignant bowel obstructions.

BACKGROUND/AIMS: Malignant bowel obstructions are still a challenging problem for surgeons and carry high morbidity and mortality risk. The aim of this study was to review the presentation and outcomes of malignant bowel obstructions and to identify the risk factors related with poor prognosis. METHODOLOGY: One hundred and twenty-five patients underwent emergency surgical treatment for malignant obstructions between January 1997 and January 2002. Data included age, sex, past medical history, presenting symptoms; physical findings on admission, American Society of Anesthesiologists (ASA) class, operative details, postoperative complications, length of hospitalization and hospital mortality were reviewed retrospectively. RESULTS: Seventy-three (58%) of the patients have poor performance status on admission. Potentially curative resection was performed in 74 (60%) patients. Surgical treatment was palliative in 43 (34%) patients. Extended bowel resections were utilized in 20 (16%) patients. Our hospital mortality rate was 21%, and postoperative morbidity rate was 31%. Coexisting cardiopulmonary diseases, presence of generalized perforation, poor general condition and extended bowel resections appeared to be related with unfavorable outcomes. CONCLUSIONS: Emergency surgical treatment for malignant obstruction may be curative in selected patients with good performance status.

Emergency bowel surgery in the elderly.

BACKGROUND/AIMS: Emergency bowel operations are commonly performed in emergency units and carry high morbidity and mortality risk, particularly in elderly patients. The aim of the present study was to review the presentation, management and outcome of bowel emergencies in elderly patients. METHODS: The records of 248 patients (91 females, 157 males) aged over 65 years, undergoing emergency bowel operation during a five-year period, were reviewed. Patient's age, sex, details of presentation, past medial history, presence of coexisting diseases, and type of surgical procedures were noted, and their effects/any unfavorable outcomes were all analyzed. Data were evaluated by using SPSS 9.0 for Windows statistical program. A p value less than 0.05 was accepted as significant. RESULTS: Mean age was 72.5 years. There were 85 (34%) isolated small bowel emergencies (SBE) and 153 (62%) isolated large bowel emergencies (LBE). The most common disease in SBE was mesenteric ischemia in 67 (27%), followed by adhesions, 26 (10%). Malignant bowel disease in 59 (24%) and sigmoid volvulus in 43 (17%) accounted for the majority of LBE. Sixty-five percent (161) of patients presented with obstruction and 46 (19%) patients had bowel perforation. Malignant disease, volvulus and mesenteric ischemia carried high resection rates (82%, 78% and 76%, respectively). Overall morbidity and mortality rates were 42% (105) and 28% (70), respectively. CONCLUSIONS: Emergency bowel operations have poor outcome in the elderly. Nature and extent of disease, presence of coexisting cardiopulmonary disease, late admission and presence of peritonitis significantly affect management and outcome of elderly patients with bowel emergencies.