The Prevalence of Simultaneously Ordering Amylase and Lipase for Diagnosing Pancreatitis.

Background: The simultaneous measurement of serum amylase and lipase levels in the diagnosis of pancreatitis was deemed unnecessary in several studies. We aim at evaluating the prevalence of the simultaneous co-ordering of serum amylase and lipase. Methods: This retrospective chart review was conducted at King Saud University Medical City in Riyadh, Saudi Arabia, between January 2021 and January 2022. We examined requests for serum amylase or serum lipase levels that had been sought for suspected pancreatitis within the electronic health system (EHS). Results: A total of 9,617 requests for serum amylase and serum lipase levels for 5,536 patients were made in a year; 6,873 (71.5%) were made for serum lipase alone; 1,672 (17.4%) were made for co-ordered serum lipase and amylase; 322 (3.3%) were made for amylase alone; and 750 (7.8%) were made for repeated amylase testing. Four hundred and thirteen tests (4.3%) yielded a diagnosis of pancreatitis. The estimated cost reduction when serum amylase was removed if serum lipase was co-ordered was 108,680 SAR (approximately US$28,960). Conclusion: Serum amylase and lipase were co-ordered for about 17.4% of pancreatitis diagnostic tests, all of which were unnecessary. Eliminating serum amylase testing for any patient who receives a test of their lipase levels would exert a significant impact on institutional costs and savings.

Propranolol-induced hyperkalemia in infantile hemangioma patients: How serious is it?

Background: Infantile hemangioma is the most frequent benign vascular tumor of infancy, which has a specific clinical history of early growth, followed by spontaneous remission. Since the fortuitous discovery of propranolol's efficacy in 2008, the management of infantile hemangioma has been quickly developing. Methods: This study is a retrospective cohort study. Electronic search in the patient's registry of King Khalid University Hospital, Riyadh, Saudi Arabia, was performed using the keywords hemangioma, haemangioma, infantile hemangioma, and vascular tumors. The search revealed a total of 101 subjects for which 56 were included and 45 were excluded. Results: A total of 56 patients with infantile hemangioma were evaluated in this study. The majority were females. The F: M ratio is 3.4:1. The highest percentage of the patients was delivered by the elective cesarian section, that is, 23 (41.1%), followed by spontaneous vaginal delivery, that is, 19 (33.9%). Full-term patients were 27 (48%), whereas the pre-term patients were 21 (37%). The total number of patients who developed hyperkalemia while on propranolol was 12 (31%). There was no statistically significant difference (P > 0.05) between patients who developed hyperkalemia and patients who did not develop hyperkalemia in terms of gender, gestational age, mode of delivery, size and location of hemangioma, or concomitant topical timolol use. Conclusion: Hyperkalemia is benign and transient, although solid conclusive opinions cannot be drawn because of the small sample size and the retrospective nature of the study.

KRAS Mutations in Colorectal Cancer: Relationship With Clinicopathological Characteristics and Impact on Clinical Outcomes in Saudi Arabia.

Background Few studies have addressed the prevalence and prognostic impacts of KRAS mutations in Saudi patients with colorectal cancer (CRC). The present study aimed to address the prevalence of KRAS mutations and evaluate their impact on clinical outcomes (if any) among Saudi patients. Methods This retrospective cohort study was conducted at King Saud University Medical Centre (KSUMC), Saudi Arabia. All medical records of biopsy-proven CRC patients between 2015 and 2021 were reviewed. Statistical analysis was carried out to address the associations between KRAS mutations and the clinicopathological patients' variables and survival. Results KRAS mutations were found in 97/194 (50%) CRC patients. In comparison to wild type KRAS tumors, KRAS- mutated ones had shown a trend toward right-sided tumors (30% and 4.3% vs 16% and 1.1%, p-value = 0.032, respectively) and peritoneal metastases (34% vs 19%, p-value = 0.014). Older age at diagnosis, gender, tumor grade, microsatellite instability (MSI), tumor stage (T), and the presence of distant metastasis were independent prognostic factors for poor overall survival (OS). There was no significant association between KRAS mutations and the hazard of mortality (HR: 0.653, 95% CI 0.873-1.134, p = 0.131). For progression-free survival (PFS), older age at presentation, MSI, tumor nodal stage (N), the presence of liver and lung metastasis, and recurrence were poor prognostic factors for PFS. There was no significant relation between KRAS mutations and PFS (HR ratio: 0.756, 95% CI 0.229-2.497, p = 0.646). Conclusions The prevalence of KRAS mutations in CRC patients was similar to that observed in previous studies of Saudi patients. KRAS mutations showed a trend toward right-sided tumors and peritoneal metastases. Survival was significantly related to different clinicopathologic variables of the study cohort but was not affected by the KRAS mutational status.