1.Outcomes of hepatic metastasectomy for colorectal cancer metastases in the Philippine General Hospital.
Juan Carlos R. Abon ; Ramon L. De Vera ; A&rsquo ; Ericson B. Berberabe ; Marc Paul J. Lopez
Philippine Journal of Surgical Specialties 2021;76(2):48-55
RATIONALE:
The liver is the most common site of metastasis from
colorectal cancer. Curative intent liver metastasectomy has shown
improvement in overall survival. This manuscript will present
the long-term oncologic outcomes of hepatic metastasectomy for
colorectal cancer with resectable liver metastasis.
METHODS:
Data of patients with resectable liver metastases from
colorectal cancer who underwent hepatic resection at the Philippine
General Hospital over a 10-year period was reviewed. The primary
outcome investigated was overall survival.
RESULTS:
Thirty patients were included in the study. The median
overall survival was 20 months, with a 2-year and 5-year overall
survival rate of 40% and 6.67% respectively. Eleven (36.67%)
patients had disease recurrence, with a median disease-free survival
of 16 months. A significant difference in survival was seen between
patients with synchronous and metachronous liver metastasis (20.38
and 36.78 months respectively, p=0.0393) and in patients given
adjuvant chemotherapy at any time in relation to the occurrence of
the liver metastases versus patients who did not receive any adjuvant
treatment (34.08 and 18.59 months respectively, p=0.0349). Trends
towards improved overall survival were seen in patients 50 years
old or less (36.86 versus 21.78 months, p=0.0837) and in patients
with a clinical risk score of 2 or less (29.65 versus 19.62 months,
p=0.1823), which may show significance in a higher powered study
CONCLUSION
Improved overall survival was observed among patients
with colorectal liver metastases undergoing hepatic metastasectomy
compared to no liver resection.
Metastasectomy
;
Philippines
2.Hemosuccus pancreaticus: A case of upper gastrointestinal bleeding arising from a pancreatic pseudoaneurysm
Juan Carlos R. Abon ; A&rsquo ; Ericson B. Berberabe
Acta Medica Philippina 2023;57(3):66-70
Pancreatic pseudoaneurysms are possible complications of chronic pancreatitis. These may present as hemosuccus pancreaticus, a rare cause of upper gastrointestinal tract bleeding where a pseudoaneurysm erodes into an adjacent pseudocyst or pancreatic duct, manifesting as bleeding through the pancreatic duct into the duodenal papilla. We report a case of a 32-year-old male with a history of chronic pancreatitis presenting as intermittent upper gastrointestinal tract bleeding secondary to hemosuccus pancreaticus from a pancreatic pseudoaneurysm. The patient underwent multiple sessions of endovascular embolization, which successfully controlled the bleeding despite some failed attempts; thus, a potentially morbid last-resort surgery was avoided.
pseudoaneurysm
;
chronic pancreatitis
3.Current epidemiology of periampullary malignancies in a tertiary referral center in the Philippines: A five-year review
Juan Carlos R. Abon ; A&rsquo ; Ericson B. Berberabe
Acta Medica Philippina 2022;56(14):61-70
Background:
Periampullary malignancies traditionally occur during the later decades of life, but casual observations at the Philippine General Hospital (PGH) have shown more patients presenting at younger ages. Updates on the epidemiology and clinical features of these uncommon cancers may improve detection and result in better outcomes.
Objective:
The study aimed to describe the current epidemiology of adult patients diagnosed with periampullary malignancies seen in the past five years at the PGH Department of Surgery.
Methods:
Demographic and clinical data were obtained on patients with either pancreatic head, ampullary, distal bile duct, or duodenal cancer diagnosed from 2015 to 2019. Age and sex distributions, rates of symptom presentation, utilization of diagnostic modalities, and prevalence of comorbid conditions were analyzed per individual primary site and for the entire study population.
Results:
Two hundred seventy-seven patients were included in the study, comprised mostly of pancreatic head cancers (56.32%) followed by ampullary (19.86%), duodenal (9.75%), and distal CBD cancers (7.58%). The mean age of presentation was 59.30 years. 33.94% of cases occurred in the 6th decade of life, while 24.91% of patients were aged 50 years and below. There was a nearly equal distribution by sex (50.90% female, 49.10% male). Majority of patients presented with jaundice (89.65%) and abdominal pain (71.64%). CT scan was used to diagnose 71.48% of patients. We observed a higher prevalence of diabetes mellitus (21.32%), biliary stone disease (19.12%), and smoking history (36.88%) in the study group compared to the general Philippine population.
Conclusion
The epidemiology of periampullary malignancies at UP-PGH showed a younger age at presentation and an equal sex ratio compared to published data. Distributions of the primary sites, symptom frequency, and rate of associated comorbidities were consistent with previous findings from the literature.
Epidemiology
4.Necrotizing fasciitis of bilateral breasts following unilateral modified radical mastectomy for invasive ductal carcinoma: A case report and review of literature
Juan Carlos R. Abon ; Apple P. Valparaiso ; Ann Camille Q. Yuga
Acta Medica Philippina 2024;58(Early Access 2024):1-7
Necrotizing fasciitis of the breast is a rare but potentially fatal soft tissue infection. It may occur primarily in patients without any direct cause, and less commonly after undergoing elective surgical procedures such as cosmetic mammoplasties and oncologic resections.
This is a case of a 46-year-old female with stage IIIA invasive ductal carcinoma of the left breast treated with modified radical mastectomy presenting with a necrotizing infection involving the bilateral breast regions and left lateral abdomen six days after operation. She was managed with broad-spectrum antibiotics and radical debridement with right mastectomy, followed by wound coverage with split-thickness skin grafting. This is the eight case of breast necrotizing fasciitis occurring after mastectomy for breast cancer reported in the literature.
breast
;
fasciitis, necrotizing
;
mastectomy, modified radical
5.The diameter of the normal extrahepatic bile duct among patients diagnosed with cholecystolithiasis managed at the Philippine General Hospital
Dante G. Ang ; Teressa Mae D. Bacaro ; Juan Carlos R. Abon ; Jose Miguel P. Verde
Acta Medica Philippina 2024;58(Early Access 2024):1-5
Background and Objective:
Understanding the normal anatomy and size of the extrahepatic biliary tree is vital for surgeons to make informed decisions regarding the necessity of additional procedures beyond cholecystectomy. The extrahepatic bile duct (EHBD) comprises the common hepatic duct (CHD) and the common bile duct (CBD), with the former formed by the convergence of the right and left hepatic ducts and the latter extending from the CHD to the duodenum. A normal diameter is indicative of the absence of any signs of obstruction in the EHBD, and the determination of the average range for these ducts are essential for identifying pathologies that may require further surgical intervention. Cholecystolithiasis is a common condition managed at the Philippine General Hospital (PGH). Trans-abdominal ultrasonography is frequently utilized to diagnose cholecystolithiasis, and it can also be used to determine the size of the common bile duct. Knowledge of the normal CBD diameter aids clinicians in distinguishing obstructed bile ducts from normal ones, prompting further diagnostic tests for improved patient management. However, there is limited data on the average diameter of the CBD among Filipino patients with this condition. The study aimed to determine the mean diameter of the common bile duct and common hepatic duct among patients diagnosed with cholecystolithiasis with no signs of obstruction in the EHBD managed at the Philippine General Hospital.
Methods:
This prospective cross-sectional study included 80 patients who underwent cholecystectomy with intraoperative cholangiography. The CBD and CHD diameters were measured using intraoperative ultrasonography, and the data were analyzed using descriptive statistics and independent t-test.
Results:
The mean diameter of the CBD was 5.17 mm, with a range of 2.7-10 mm (1.41) mm. The mean diameter of the CHD was 4.71 mm, with a range of 2.3- 10 mm (1.59) mm. There was no significant difference in the CBD and CHD diameters between male and female patients, and across different age groups.
Conclusion
In patients with cholecystolithiasis managed at the PGH, the mean diameter of the CBD and the CHD was 5.17 mm and 4.71 mm, respectively, with no significant difference between genders and age groups. The mean diameter of the CBD among Filipino patients with cholecystolithiasis is similar to those reported in other countries. These findings may have clinical implications for the management of patients with cholecystolithiasis, particularly in the planning of endoscopic retrograde cholangiopancreatography (ERCP) and laparoscopic cholecystectomy. Further studies with larger sample sizes and different populations are recommended to validate these results. These findings can aid clinicians in determining the need for pre-operative Magnetic Resonance Cholangiopancreatography (MRCP) or selective intraoperative cholangiography to detect extrahepatic bile duct obstruction.
Common Bile Duct
;
Cholecystolithiasis