Clinical significance of pepsinogen C tumor expression in patients with stage D2 prostate carcinoma

Pepsinogen C is an aspartyl protease mainly involved in the digestion of proteins in the stomach, and an androgen-inducible protein in breast cancer cells. The aims of this study were to evaluate the expression and clinical significance of this enzyme in the primary tumors of prostate cancer patients with bone metastasis who were scheduled to receive antiandrogenic therapy. This study was prospectively performed in 28 stage D2 prostate cancer patients who, after diagnosis, received maximum androgen blockade. Pepsinogen C tumor expression was analyzed in samples (24 from needle biopsy cylinders and four from transurethral resection specimens) from primary tumors using an immunohistochemical assay. Twelve prostate carcinomas (42.8%) were positive for pepsinogen C. Pepsinogen C was a significant prognostic factor to predict a longer overall survival in the patients of our study (p<0.01). Pepsinogen C can be a new prognostic factor and a useful biological marker of androgen dependency in prostate cancer.     

经尿道前列腺电切(TURP)联合输尿管镜钬激光碎石术治疗前列腺增生症(BPH)合并膀胱结石的疗效观察

目的:观察分析经尿道前列腺电切(TURP)联合输尿管镜钬激光碎石术治疗前列腺增生症(BPH)合并膀胱结石的效果。方法:本组61例患者先行膀胱结石钬激光碎石,然后采用经尿道前列腺电切术(TURP)治疗前列腺增生症。结果:61例一次性治疗成功,术后结石无残留,排尿情况较前明显改善,IPSS评分均分由24.4分降到9.4分,最大尿流率由7.2 mL/s上升到19.5 mL/s。结论:钬激光碎石及TURP同期治疗前列腺增生合并膀胱结石是安全有效的方法。     

钬激光电切术对老年高血压患者前列腺增生的疗效及安全性

目的:探讨钬激光和经尿道电切术治疗老年高血压伴前列腺增生的疗效和安全性。方法:回顾性分析2011年1月-2013年1月我科收治的48例患者的临床资料,随机分为两组,每组24例,分别采用经尿道前列腺电切术和激光切除术治疗。观察两组手术时间、术中出血量、住院时间、IPSS和QOL评分及血压变化情况。分别于手术前后应用经直肠超声测量患者前列腺厚度,根据球形体积公式估算前列腺重量。结果:钬激光组手术时间、术中出血量、住院时间明显低于电切组,差异具有统计学意义(P0.05);钬激光组术后前列腺重量、IPSS评分、QOL评分及血压均低于电切组,差异具有统计学意义(P0.05)。结论:经尿道钬激光切除术治疗伴高血压的老年前列腺增生患者安全有效,可在临床推广。     

Detection of papillomavirus DNA in human prostatic tissue by Southern blot analysis.

Human papillomavirus deoxyribonucleic acid was detected in prostate tissue from patients with benign prostatic hyperplasia or prostatic carcinoma. Radiolabelled genomic probes, specific for the sexually transmitted human papillomavirus types 16 and 18, were used to detect viral genomic sequences in prostate DNA samples analyzed by the Southern blot technique. Viral sequences were identified in DNA from 7 of 16 prostate samples including both hyperplastic and carcinoma tissues and including tissues obtained by transurethral resection or suprapubic prostatectomy. These data indicate that the prostate gland can be infected with human papillomavirus and imply that the prostate may act as a reservoir for the sexual transmission of papillomavirus via seminal fluid. The detection of both episomal and integrated viral DNA sequences in prostate tissue may have important implications for the etiology of prostate disease.     

Costs of minimally invasive laser surgery compared with transurethral electrocautery resection of the prostate.

We reviewed hospital charges for patients undergoing uncomplicated endoscopic surgical resection for symptomatic bladder outlet obstruction due to benign prostatic hyperplasia over a 1-year period at a single institution. Of 115 patients, 67 underwent transurethral electrocautery resection of the prostate, and 48 underwent endoscopic neodymium:yttrium-aluminum-garnet laser ablation of the prostate under direct vision. Analysis showed a cost differential between these 2 surgical treatments in excess of $2,000, favoring laser prostatectomy (P < .0001) over transurethral electrocautery resection. The single greatest difference between the treatments was the ability to manage all patients receiving laser treatment as outpatients, whereas the mean and median hospital stay after transurethral electrocautery resection was 3.0 days. Taking additional cost variables into account and decreasing the cost of laser delivery systems would further increase this cost differential in favor of laser therapy. The diminished postoperative morbidity associated with laser treatment also promises lower total costs over the long term.     

Needle biopsy in diagnosis of prostatic cancer

Four methods available for the diagnosis of carcinoma of the prostate-digital rectal evaluation, prostatic smear, needle biopsy and open perineal or transurethral biopsy-were studied and correlated.One hundred ten patients with clinical indications of cancer of the prostate were subjected to needle biopsy and open perineal or transurethral biopsy. Seventy of the same patients had prostatic smear examination. Using the open perineal biopsy or the positive transurethral biopsy as the standard, the accuracy of prostatic palpation, prostatic smear and needle biopsy were obtained.A high degree of correlation (74 per cent) was demonstrated between digital rectal evaluation and positive surgical biopsies in both early and late cases. There were 17 false positive clinical diagnoses. The prostatic smear showed an overall correlation of 45 per cent when compared with the results of positive surgical biopsy. The overall accuracy of needle biopsy was 73 per cent. However, in the last 39 cases, including eight in which the carcinomas were of groups A and B (curable), the needle accuracy was 100 per cent. When there is clinical indication of malignant disease of the prostate, needle biopsy of the lesion is warranted and should be done before definitive or palliative treatment is undertaken.     

Comparative analysis of biological profiles of benign prostate hyperplasia and prostate cancer as potential diagnostic, prognostic and predictive indicators

The prognosis in prostate cancer depends on several clinical-morphological factors, such as Gleason score, pTNM and preoperative PSA level. Reliable biological markers are being sought to supplement clinical-morphological data in order to better predict prognosis and to select an individualized therapeutic option. The aim of this study was a comparative analysis of the expression of biological markers, such as Hif-1α, bcl-2, p53, Ki-67, cyclin D1 and CD44 in BPH and prostate cancer, as well as examining their association with standard prognostic factors in prostate cancer. The immunohistochemical analysis was made on 82 formalin-fixed, paraffin- embedded tissue blocks: 43 prostate cancer specimens derived from patients who had undergone radical resection, and 39 prostate bioptates derived from patients with BPH. A positive correlation was demonstrated between Gleason score and the expression of both Hif-1α (R = 0.32, p 〈 0.05) and Ki-67 (R = 0.30, p 〈 0.05). Additionally, a negative correlation was demonstrated between tumor stage (pTNM) and bcl-2 expression (R = -0.35, p 〈 0.05). Hif-1α as a hypoxia marker and Ki-67 as a proliferation marker, both correlated with Gleason score, may constitute important additional prognostic indicators in prostate cancer patients.     

腹腔镜子宫切除术对宫颈癌患者近期疗效及远期复发率的影响

目的:探讨腹腔镜根治性子宫切除术对宫颈癌患者近期疗效及远期复发率和生存率的影响。方法:选取2013年5月-2015年5月在我院接受手术切除治疗的宫颈癌患者71例为研究对象,根据手术方法不同将所选患者分为两组。腹腔镜组37例患者采用腹腔镜根治性子宫切除术,开腹手术组34例患者采用改良式根治性肿瘤切除术。观察并比较两组患者的手术时间、术中出血量、肿瘤切除长度、淋巴结清扫数、盆腔引流量、术后拔管时间等近期疗效,以及远期复发率及生存率。结果:与开腹手术组比较,腹腔镜组患者手术时间长、术中出血量少,差异具有统计学意义(P0.05);两组患者的肿瘤切除长度及淋巴结清除数比较,差异无统计学意义(P0.05);与开腹手术组比较,腹腔镜组患者的盆腔引流量较少,术后排气时间较早,差异具有统计学意义(P0.05);但两组患者术后拔管时间及住院时间比较,差异无统计学意义(P0.05);两组患者术后五年的复发率及生存率比较,差异无统计学意义(P0.05)。结论:腹腔镜根治性子宫切除术治疗宫颈癌的近期疗效显著,且不会影响患者的远期复发率及生存率。     

Tamoxifen decreases progesterone and nuclear androgen receptors in the human prostate

Androgen (AR) and progesterone (PR) receptors were measured in resected prostate tissues of patients with benign prostatic hypertrophy. One group of patients received an anti-estrogen, tamoxifen (Tm 20 mg b.i.d.) for 10 days prior to prostate resection; a second group served as controls and were untreated. Plasma levels of Tm were 200-500 pmol/ml at the time of surgery. Statistically significant decreases (P less than 0.05) were found in cytosol PR (154 fmol/mg DNA +/- 33 SE in 14 Tm-patients vs 266 +/- 40 SE in 13 untreated patients) and in nuclear AR (103 fmol/mg DNA +/- 70 SE in 18 Tm-patients vs 257 +/- 62 SE in 17 controls). Cytosol AR was not significantly different in Tm-treated patients (257 fmol/mg DNA +/- 79 SE in 15 Tm-patients vs 346 +/- 130 SE in 17 controls, P greater than 0.6). Although receptor recycling is one of several possible explanations, these decreases in progesterone and nuclear androgen receptors in Tm-treated patients suggest that estrogen has a role in the biological regulation of steroid receptors in the human prostate.     

经直肠B 超诊断前列腺增生的图像特征及其临床意义

目的:探讨前列腺增生(BPH)经直肠B超检查的图像特征及其对治疗的指导作用。方法:回顾性分析103例经术后病理组织学诊断确诊的BPH患者临床资料,总结其经直肠B超图像特征,并根据B超诊断结果选择适宜治疗方法。结果:经直肠B超检出BHP 98例,2例误诊,3例漏诊,诊断符合率、误诊率、漏诊率分别为95.14%、1.94%、2.91%;B超图像显示BPH病灶呈细小均匀光点,前列腺变圆、增大,内腺以低回声为主,外腺以低回声及中、低混合回声为主;包膜清晰占62.92%;98例确诊为BPH的患者当中,66例行经尿道电切术、16例在B超引导下行无水乙醇注射,16例行开放性手术。结论:直肠B超通过观察回声、内外腺前后径比例、有无包膜、分界情况等准确诊断前列腺增生,同时可通过测量前列腺重量指导临床治疗。     

The "iatrogenic-hanging columella": preserving columellar contour after tip retroprojection

This article discusses a method for treating the ultraprojecting tip by the resection of columellar skin in open rhinoplasty. Lack of postoperative contraction of columellar skin and soft tissue may result in an "iatrogenic-hanging columella." Columellar skin resection frequently produces its own deformities because of a discrepancy in the width of the columellar base side and the infralobular flap side. The ultraprojecting tip was present in 56 of 660 consecutive rhinoplasty patients (8 percent) over 8 years (1991 to 1998). Of these 56 patients, 48 underwent partial resection of the infralobular skin flap. Of these 48 patients, eight (17 percent) required secondary skin revision of the columellar resection area. The technique was then modified since 1998. Over 2 years, 13 of 129 consecutive rhinoplasty patients (10 percent) were judged to have an ultraprojecting tip. Of these, eight patients were treated with a modification in the technique by resecting skin on the posterior columellar base. No resection areas were revised in the second series. Of the 789 patients in both series, 647 (82 percent) underwent primary rhinoplasties, 126 (16 percent) had secondary rhinoplasties, and 16 (2 percent) had tertiary rhinoplasties. The treatment of excess columella skin adds a subtle aesthetic improvement to the postoperative nasal contour. By resecting skin on the posterior columellar base or the posterior columellar base and, rarely, the anterior flap, an iatrogenic-hanging columella can be avoided.     

经尿道等离子电切术治疗前列腺增生的临床效果研究

目的：探讨经尿道等离子电切术治疗前列腺增生的临床效果和安全性。方法：选取2013 年1 月-2014 年1 月在我院就诊的 前列腺增生患者64 例,并将其随机分为经尿道前列腺等离子体双极电切术(PKRP)组和经尿道前列腺电切术(TURP)组,每组各 32 例。PKRP组患者使用经尿道前列腺等离子体双极电切术治疗,TURP 组患者使用经尿道前列腺电切术治疗,术后观察和比较 两组患者的临床疗效及并发症的发生情况。结果：与TURP组比较,PKRP 组的手术时间显著延长,术中出血量明显减少,导尿管 留置时间、住院时间均显著缩短,腺体切除量明显增加,差异具有统计学意义(P＜0.05)。术后,两组的IPSS、QOL、RUV和Qmax 均 较术前显著改善(P＜0.05),且PKRP 组患者的IPSS、QOL、RUV均显著低于TURP 组,而Qmax 明显高于TURP 组,差异具有统计 学意义(P＜0.05)。两组的不良反应包括前列腺电切综合征、暂时性尿失禁、迟发性出血和尿道狭窄,PKRP组的总发生率显著低于 TURP 组,差异具有统计学意义(P＜0.05)。结论：PKRP 治疗前列腺增生的临床效果优于TURP,患者恢复快,并发症发生率低,值 得临床合理选用。     

CARCINOMA OF THE PROSTATE—Diagnosis and Treatment

About 28 per cent of men between the ages of 71 and 75 have cancer of the prostate. Many of them do not die of the disease, but with the life span ever increasing, this problem is becoming more important.In the early stages the condition is asymptomatic; when the symptoms of urinary obstruction arise, the cancer is usually too advanced for cure. Cure depends on early diagnosis and, therefore, on routine rectal examination. The solitary hard nodule of early prostatic cancer becomes a stony hard fixed prostate as the condition progresses. X-ray and acid phosphatase studies are of help only after the cancer has metastasized. As many as 50 per cent of patients with rectally palpable early carcinoma of the prostate can be cured by radical perineal prostatectomy. Often, simple enucleation or transurethral resection is sufficient to effect cure in the case of occult carcinoma. However, some observers believe that when cancer is detected by microscopic examination of a prostate that has been removed, a radical operation should be done as soon after the initial operation as feasible. Early orchidectomy and estrogen therapy are of considerable help in slowing the process of advanced prostatic cancer and may postpone the need of transurethral resection to relieve obstruction. When these measures fail, bilateral adrenalectomy, cortisone therapy, pituitary irradiation, and pituitary extirpation have been employed, with moderate success, in an effort to diminish the androgen level.     

Carcinoma of the prostate; diagnosis and treatment

About 28 per cent of men between the ages of 71 and 75 have cancer of the prostate. Many of them do not die of the disease, but with the life span ever increasing, this problem is becoming more important. In the early stages the condition is asymptomatic; when the symptoms of urinary obstruction arise, the cancer is usually too advanced for cure. Cure depends on early diagnosis and, therefore, on routine rectal examination. The solitary hard nodule of early prostatic cancer becomes a stony hard fixed prostate as the condition progresses. X-ray and acid phosphatase studies are of help only after the cancer has metastasized. As many as 50 per cent of patients with rectally palpable early carcinoma of the prostate can be cured by radical perineal prostatectomy. Often, simple enucleation or transurethral resection is sufficient to effect cure in the case of occult carcinoma. However, some observers believe that when cancer is detected by microscopic examination of a prostate that has been removed, a radical operation should be done as soon after the initial operation as feasible. Early orchidectomy and estrogen therapy are of considerable help in slowing the process of advanced prostatic cancer and may postpone the need of transurethral resection to relieve obstruction. When these measures fail, bilateral adrenalectomy, cortisone therapy, pituitary irradiation, and pituitary extirpation have been employed, with moderate success, in an effort to diminish the androgen level.     

Safety of an Enhanced Recovery Pathway for Patients Undergoing Open Hepatic Resection

Background

Enhanced recovery pathways (ERP) have not been widely implemented for hepatic surgery. The aim of this study was to evaluate the safety of an ERP for patients undergoing open hepatic resection.

Methods

A single-surgeon, retrospective observational cohort study was performed comparing the clinical outcomes of patients undergoing open hepatic resection treated before and after implementation of an ERP. Morbidity, mortality, and length of hospital stay (LOS) were compared between pre-ERP and ERP groups.

Results

126 patients (pre-ERP n = 73, ERP n = 53) were identified for the study. Patient characteristics and operative details were similar between groups. Overall complication rate was similar between pre-ERP and ERP groups (37% vs. 28%, p = 0.343). Before and after pathway implementation, the median LOS was similar, 5 (IQR 4–7) vs. 5 (IQR 4–6) days, p = 0.708. After adjusting for age, type of liver resection, and ASA, the ERP group had no increased risk of major complication (OR 0.38, 95% CI 0.14–1.02, p = 0.055) or LOS greater than 5 days (OR 1.21, 95% CI 0.56–2.62, p = 0.627).

Conclusions

Routine use of a multimodal ERP is safe and is not associated with increased postoperative morbidity after open hepatic resection.     

Improving outcomes in high-risk prostate cancer with radiotherapy

There have been significant improvements in the radiotherapeutic management of patients with high risk prostate cancer. Randomized trials have clearly demonstrated improved outcomes with the combination of radiotherapy in conjunction with androgen deprivation. While these trials have utilized low doses of radiotherapy in the range of 70 Gy, recent studies have suggested that significant benefits of combined androgen deprivation therapy with dose escalated radiotherapy are also observed. The use of high radiation dose levels in the setting of high risk prostate cancer is important, and strategies which combine external beam radiotherapy with a brachytherapy boost may provide an opportunity for even greater intensification of the radiation dose to the prostate target. Systemic therapies, second generation anti-androgen therapy and novel targeted agents integrated with radiotherapy will open up new vistas and challenges for further improved outcomes in patients with high-risk disease.     

Normal and benign human prostatic epithelium in culture. I. Isolation.

Isolation of normal human glandular epithelia and their growth and maintenance in vitro have been major problems. The primary objective of studies presented here was to isolate postpubertal, normal human, viable prostatic epithelium for in vitro cultivation. The long-term objective of these investigations was to develop an in vitro human cell model system for studies on prostatic carcinogenesis. A method for isolation of viable, normal and benign human prostatic epithelium, using collagenase for tissue dissociation, is described. Intact acini were isolated, which, on plating gave rise to vigorously growing monolayer cultures of epithelial cells. The purity of epithelial cultures partly depended upon the source of tissue. Specimens of normal prostate and those of benign tissue derived from open prostatectomies provided primarily pure epithelial cultures with occasional fibroblast colonies in some cultures, which could be removed. Cultures from some specimens of transurethral resection of the prostate (TURP) contained many fibroblast colonies due to incomplete separation of acini from the stroma. This resulted from incomplete digestion of denatured tissue caused by electrocauterization during surgery. Cultures established in this manner are being used to study the effects of hormones, vitamins and other growth regulators in order to establish growth requirements of these cells in vitro, which would facilitate their long-term maintenance.     

腹腔镜肝癌切除术与开放式肝癌切除术的疗效比较研究

目的:探讨腹腔镜肝癌切除手术治疗原发性肝癌的可行性及安全性。方法:选取2008年6月至2011年1月在我院行腹腔镜肝癌切除术的30例患者作为研究对象,另外选择同期在我院行开放式肝癌切除术的30例患者作为对照。结果:30例均在腹腔镜下成功地完成手术,其中22例行腹腔镜局部切除术,8例行肝左外叶切除术。手术时间103-142 min,出血量60-480mL,术后均未发生严重并发症,术后平均住院8.6 d。术后随访18~36个月,局部复发或种植性转移率与对照组无显著差异。结论:腹腔镜肝癌切除术是安全可行治疗原发性肝癌的手术方式。     

等离子经尿道前列腺电切对患者生活质量的影响

目的:探讨等离子经尿道前列腺电切(PKRP)和常规经尿道前列腺电切(TURP)对良性前列腺增生(BPH)患者生活质量的影响。方法:采取前瞻性随机对照的方法将105名需要手术治疗的BPH患者随机分成二组:即TURP组51例,PKRP组54例。使用IPSS、QOL和WHOQOL-BREF量表,分别在术前、术后第1、6和12个月对患者的LUTS和生活质量进行评估。结果:TURP组和PKRP组患者的生活质量在术后6个月得到明显改善。TURP组术后第6个月的IPSS、QOL和WHOQOL-BREF评分分别为10.4±2.6,1.7±0.6和55.1±7.4,术后第12个月的IPSS、QOL和WHOQOL-BREF评分分别为11.4±2.6,1.7±0.5和55.2±6.9,均比术前(21.5±5.3,5.3±0.9和52.4±7.0)有明显改善。PKRP组术后第6个月的IPSS、QOL和WHOQOL-BREF评分分别为9.8±2.4,1.5±0.4和57.9±8.1,术后第12个月的IPSS、QOL和WHOQOL-BREF评分分别为10.6±2.2,1.7±0.5和56.3±6.2,均比术前(21.3±6.1,5.2±1.0和55.0±8.8)有明显改善。结论:TURP和PKRP术后第6个月患者的生活质量得到持续改善,WHO-QOL-BREF可以作为评价TURP和PKRP对BPH患者生活质量影响的可靠测量工具。     

An unusual case of retrovesical ectopic prostate tissue accompanied by primary prostate cancer

ABSTRACT: We report an unusual case of retrovesical ectopic prostate tissue in a 73-year-old man with primary prostate cancer. The man's prostate-specific antigen was 24.66 ng/ml. Transabdominal ultrasonography, pelvic computed tomography and pelvic magnetic resonance imaging demonstrated a heterogeneous 8.5 x 8.0 x 7.0 cm mass in contact with the posterior wall of the urinary bladder. The patient underwent a retropubic radical prostatectomy and resection of the tumor. Pathological examination of the prostate revealed a prostatic adenocarcinoma, Gleason score of 4 + 5 = 9, and the retrovesical tumor was confirmed to be a benign prostate tissue.