ABSTRACT
@#Cecal volvulus is a rare cause of intestinal obstruction caused by axial twisting of the cecum that occurs in 1–1.5 % of all intestinal obstruction, with an incidence of 2.8–7.1 cases per million annually. Cecal volvulus is potentially life-threatening without prompt surgical intervention. A 57-year-old woman presented with severe abdominal pain and distention. Laboratory examinations revealed normal white blood cell count with neutrophilic predominance. Diagnosis of acute cecal volvulus was made from a “whirl sign” on abdominal computed tomography. An exploratory laparotomy confirmed the diagnosis of cecal volvulus and a segmental ileocolic resection with primary anastomosis was carried out. The patient was discharged improved and returned to her normal activities of daily living.
ABSTRACT
RATIONALE/OBJECTIVES@#The Turnbull-Cutait transanal pullthrough procedure with delayed coloanal anastomosis has been widely used before the advent of intestinal stapling devices. It is a viable option for rectal reconstruction for benign and malignant conditions, and is able to maintain intestinal continuity without the use of a temporary diversion. It has also been used in salvage operations for pelvic sepsis, failed anastomosis, and tumor recurrence that will otherwise require a permanent ileostomy. This study will describe the technique, as well as the outcomes of patients who underwent the procedure.@*METHODS@#This is a retrospective descriptive study conducted to report the outcomes of patients who underwent the Turnbull-Cutait transanal pull-through with delayed coloanal anastomosis at the Philippine General Hospital from January 2008 to December 2013. Eleven patients were identified using an institutional retrospective database. Clinical data and outcomes were collected using a standard form.@*RESULTS@#Ten of the 11 patients had an unremarkable postoperative course. One patient had an anastomotic dehiscence. The mean operative time was 229.9 minutes for the 1st stage and 28.2 minutes for the second stage, with a mean blood loss of 463.6 cc for both stages. The mean interval between the two stages was 7.9 days, with an average postoperative length of stay of 8.27 days. The average follow-up was 4.5 years. Functional outcomes were acceptable (average Wexner score 5.63), except for one patient who had an anastomotic dehiscence. No perioperative mortality was noted.@*CONCLUSION@#Turnbull-Cutait trans-anal pullthrough procedure with delayed coloanal anastomosis appears to be a safe procedure. The study suggests that it is an alternative strategy in rectal cancer in providing a sphincter-saving surgery, with the establishment of gastrointestinal continuity, and without the need for a proximal diversion. Stoma-less surgery has a notable health economic impact especially in developing countries because it eliminates the costs associated with the use of stoma appliances.
ABSTRACT
BACKGROUND@# Hirschsprung’s disease (HD) is rare in adults, since a majority of cases are corrected in childhood.@*OBJECTIVES@#The authors describe the profile of patients with HD who reached adulthood without having undergone corrective surgery. Also, they describe the outcomes of a modified Duhamel procedure in these patients, in terms of morbidity and mortality.@*METHODS@#This retrospective study, included patients 18 years old and above, diagnosed with HD who reached adulthood without having undergone definitive repair and managed surgically by the Division of Colorectal Surgery, UP-PGH from January 1, 2004 to December 31, 2014. A review from the Department Surgical Database was used and patients’ hospital records were used to fill out a Data Collection Form. Descriptive statistics were used to summarize the data.@*RESULTS@# The 13 patients included in the study were diagnosed at an average age of 16.6 (± 13.16) years. The mean age at the time of definitive surgery was 23.46 (± 6.96) years. The M:F ratio was 5.5:1. The most common presenting symptom was constipation (69.23%). All had a prior proximal bowel diversion, with a transverse loop colostomy (61.54%) being the most common. The transition zone was located in the sigmoid in a third of patients. The mean time from diagnosis to definitive surgery was 6.69 years. Eight (61.54%) have since undergone stoma reversal. There was only one (7.69%) morbidity, a superficial surgical site infection. No mortalities were reported.@*CONCLUSION@#The modified Duhamel procedure is a safe definitive surgical procedure for the adult patient with HD.
ABSTRACT
@#Objectives. Polymorphisms in metabolic genes which alter rates of bioactivation and detoxification have been shown to modulate susceptibility to colorectal cancer. This study sought to evaluate the colorectal cancer risk from environmental factors and to do polymorphism studies on genes that code for Phase I and II xenobiotic metabolic enzymes among Filipino colorectal cancer patients and matched controls. Methods. A total of 224 colorectal cancer cases and 276 controls from the Filipino population were genotyped for selected polymorphisms in GSTM1, GSTP1, GSTT1, NAT1 and NAT2. Medical and diet histories, occupational exposure and demographic data were also collected for all subject participants.Results. Univariate logistic regression of non-genetic factors identified exposure to UV (sunlight) (OR 1.99, 95% CI: 1.16-3.39) and wood dust (OR 2.66, 95% CI: 1.21-5.83) and moldy food exposure (OR 1.61, 95% CI:1.11-2.35) as risk factors; while the NAT2*6B allele (recessive model OR 1.51, 95% CI :1.06-2.16; dominant model OR 1.87, 95% CI: 1.05-3.33) and homozygous genotype (OR 2.19, 95% CI: 1.19-4.03) were found to be significant among the genetic factors. After multivariate logistic regression of both environmental and genetic factors, only UV radiation exposure (OR 2.08, 95% CI: 1.21-3.58) and wood dust exposure (OR 2.08, 95% CI: 0.95-5.30) remained to be significantly associated with increasing colorectal cancer risk in the study population.Conclusion. This study demonstrated that UV sunlight and wood dust exposure play a greater role in influencing colorectal cancer susceptibility than genotype status from genetic polymorphisms of the GST and the NAT` genes.
Subject(s)
Colorectal Neoplasms , Polymorphism, GeneticABSTRACT
Objectives@#The highly polymorphic nature of the CYP2D6 gene and its central role in the metabolism of commonly used drugs make it an ideal candidate for pharmacogenetic screening. This study aims to determine the prevalence of CYP2D6 polymorphisms among Filipinos and their association to lung cancer. @*Method@#Forty seven single nucleotide polymorphisms (SNPs) of the CYP2D6 gene were genotyped from DNA samples of 115 cases with lung cancer and age- and sex-matched 115 controls. @*Results@#Results show that 18 out of 47 polymorphisms have significant genotypic variability (>1% for at least 2 genotypes). No variant is associated with lung cancer. However, rs1135840, rs16947 and rs28360521, were found to be highly variable among Filipinos. @*Conclusion@#This study demonstrated that CYP2D6 polymorphisms are present among Filipinos, which, although not found to be associated with lung cancer, can be useful biomarkers for future pharmacogenetic studies. The SNP rs16947 is found to be associated with cancer and timolol-induced bradycardia; the SNP rs1135840, on the other hand, is only shown to be linked with cancer. The genetic variant rs28360521 is known to be associated with low-dose aspirin-induced lower gastrointestinal bleeding.