Clinico-histopathologic and outcome features of cutaneous infundibular keratinizing acanthoma: a case report and literature review

Surgical outcome and clinicopathological characteristics of emergency presentation elective cases of colorectal cancer

INTRODUCTION

The aim of this study was to evaluate the significance of clinicopathological characteristics of colorectal cancer patients undergoing emergency and elective surgery.

MATERIAL AND METHODS

In total, 116 tumors from patients treated surgically for colorectal cancer at four hospitals in Tehran between 2008 and 2013 were analyzed in the current study.

RESULTS

Our findings revealed that the emergency cases were significantly more likely to have an advanced TNM stage (p = 0.027) and histologic grade (p = 0.01) compared with the elective patients. Furthermore, the nature of surgery was significantly associated with vascular and perineural invasion (p = 0.021; p = 0.001). We also evaluated the association of gender, age, and tumor location with the nature of surgical presentation. However, no association was found between these parameters and the nature of surgery. Emergency was also correlated with greater length of hospital stay and higher rate of admission to the intensive care unit. The mortality rate was 20% in emergency cases, while patients with elective surgery had 5.63% perioperative mortality (p = 0.001). The emergency patients had a higher rate of mortality.

CONCLUSIONS

Our data indicated that colorectal cancer patients undergoing emergency surgery showed an advanced stage. The emergency patients had a higher rate of mortality than elective cases.

Investigation of clinicopathological parameters in emergency colorectal cancer surgery: a study of 67 patients

INTRODUCTION

The aim of the present study was to establish, having adjusted for case mix, the size of the differences in postoperative mortality and 5-year survival between patients presenting as an emergency with evidence of obstruction and perforation and the association of clinicopathological factors with mortality (bivariate analyses).

MATERIAL AND METHODS

The study included 67 patients who presented with colorectal cancer (CRC) between 2009 and 2013 in Iran. The mean age of the patients was 59.7 years. Of the 67 patients, 37 (55.22%) were male and 30 (44.77%) were female. Certain parameters that correlated with CRC and surgical treatment were investigated.

RESULTS

Our results showed that 46 (68.65%) patients had obstruction, while perforation was observed in 21 (31.34%) cases. Among the patients with obstruction, obstruction of the right colon was observed in 29 (43.28%) cases. There was no significant difference in mortality rate between right and left colonic obstruction. Based on the bivariate analyses, our findings showed that death of patients was significantly related to tumor grade (p = 0.02) and TNM staging (p = 0.026), but no association was found between other parameters and death, including age, sex, and tumor site.

CONCLUSIONS

Compared with patients who undergo elective surgery for colon cancer, those who present as an emergency with evidence of obstruction or perforation have higher postoperative mortality rates and poorer cancer-specific survival. Also, colorectal cancer patients with emergency surgery showed aggressive histopathology and an advanced stage.

Investigations of renal function using the level of neutrophil gelatinase-associated lipocalin associated with single-dose of cisplatin during chemotherapy

Background

Neutrophil gelatinase-associated lipocalin (NGAL) is known as a primary indicator of acute and chronic renal and can be effective in chronic kidney injury (CKI) with kidney tumors cisplatin (CP) chemotherapy. The aim of this study was to evaluate serum and urinary biomarker including NGAL (sNGAL and uNGAL) in canine with solid renal tumors who suffered from cisplatin after short and long-term chemotherapy.

Methods

In this study, in treatment and control groups, canine (n = 10 and n = 5) were administered cisplatin at 1.2 mg/kg/day (i.v.) for five consecutive days with CKI and without CKI, respectively. Serum and urine NGAL levels (ng/mL) were evaluated at 0, 1, 5, 9, 13, 17, 21, 25 and 29 days after drug injection versus baseline in treated and control groups.

Results

Canine in treatment group had shown symptoms of toxicity of cisplatin. The results indicated the higher concentrations of serum, sNGAL and uNGAL (P = 0.024; P = 0.011) compared with control group (P = 0.701, P = 0.612), (Table 2, Figs. 1 and 2). Indeed, our results showed that canine with CKI were associated with higher levels of sNGAL and uNGAL compared with control group without CKI. Moreover, the highest level of uNGAL was seen in comparison with sNGAL, after a high dose (1.2 mg/kg) administration of CP.

Conclusion

Our data suggested that U-NGAL may be useful for monitoring of renal injury in CKI patients that exposed with cisplatin. Furthermore, a primary elevate in urinary NGAL expulsion may help in identifying cases at danger of cisplatin-induced CKI that might profit from innovative remedies to prevent cisplatin nephrotoxicity.

Effect of platelet-rich plasma on the healing of cutaneous defects exposed to acute to chronic wounds: a clinico-histopathologic study in rabbits

Background

Platelet-rich plasma (PRP) contains numerous growth factors to promote wound healing and angiogenesis. The aim of this study was to gain further information about the benefits of platelet-rich-plasma for healing cutaneous acute to chronic wounds.

Methods

A total of 30 New Zealand albino rabbits (n = 15/group) were randomly assigned to two experimental groups: control group, and PRP group. Bilateral resection defects measuring 3 cm were surgically created on the dorsolateral of the cutaneous in animals and the defects were randomly divided into two mentioned groups. Wound area, neovascularization, size and epithelialization were compared on days 7, 14 and 21 post-wounding. Histopathological analyses were conducted on 15 specimens from each group after sacrifice by the cellular aspects of the regeneration of the tissue.

Results

Our results were indicated that the wound area of PRP was smaller than that in the non-treated group on days 7, 14 and 21. Furthermore, a significant decrease of the wound size was observed in PRP groups that were significantly greater than that in the control group. A significant increase of the mean vascular density was noted in the PRP treated groups compared to the control groups at day 14 and especially day 21. This results indicated that PRP treated group’ enhanced angiogenesis at the wound beds as compared to no treatment group.

Conclusion

These results could be useful for researchers in the growing fields of tissue repair and experimental wound healing. Further studies will be essential to determine the role of PRP in clinical practice.