Correction: Menstrual cycle changes: A cross-sectional study of Saudi females following SARS-CoV-2 infection.

[This corrects the article DOI: 10.1371/journal.pone.0279408.].

Menstrual cycle changes: A cross-sectional study of Saudi females following SARS-CoV-2 infection.

Temporary changes in the menstrual cycle have recently been reported following SARS-CoV-2 vaccination. In the current study, we aimed to screen menstrual cycle changes following SARS-CoV-2 infection in Saudi Arabia. The type and duration of these changes have been screened in relation to the severity of coronavirus disease symptoms and vaccination status. In total, 956 individuals responded: sixty-nine did not get the COVID-19 vaccine, while the remaining were vaccinated with either a single dose of ChAdOx1 vaccine (n:45) or BNT162b2 vaccine (n: 142) or two doses of the vaccine (n:700) using BNT162b2 (n:477), ChAdOx1 (n:89) or ChAdOx1/ BNT162b2 (n:134). Approximately 26.1% (18/69) of the subjects who did not receive the SARS-CoV-2 vaccine and 15.3% (29/188) and 26.4% (185/700) of the subjects who received single and double doses of the vaccines, respectively, reported menstrual cycle changes. The persistence of menstrual cycle changes for more than six months was reported by 6.4% (61/956) of the participants. These changes were significantly correlated with the severity of COVID-19 infection. We concluded that menstrual cycle changes, associated with COVID-19 infection, increase due to the severity of COVID-19 infection. Thus, menstrual cycle changes are among the long-term effects associated with COVID-19 infection.

Drug-drug interactions in pharmacologic management of gastroparesis.

BACKGROUND: Gastroparesis is a disorder characterized by delayed gastric emptying due to chronic abnormal gastric motility. The treatment of the disease often entails the co-administration of several classes of pharmacological agents. These agents may be metabolized via the same pathway. Inhibition or induction of a shared metabolic pathway leads to change in the systemic levels of prescribed drugs, possibly leading to undesired clinical outcomes. PURPOSE: This review discusses different pharmacological treatment for gastroparesis patients and describes the potential for drug-drug interactions (DDIs) in some of the combinations that are currently used. Prokinetic agents such as metoclopramide and domperidone are the cornerstone in treatment of gastroparesis. Antiemetic agents such as promethazine and ondansetron are frequently administered to gastroparesis patients to reduce nausea and vomiting. Gastroparesis is prevalent in diabetic patients and therefore antidiabetic agents are also prescribed. Many of these co-administered drugs are metabolized via common drug metabolizing enzymes and this can trigger potential DDIs. The scientific literature was reviewed from the years 1975-2014 for original research articles and reviews that evaluated DDIs in gastroparesis. Many commonly prescribed combinations were predicted to cause potential DDIs in gastroparesis patients. This review will help inform about potential hazardous combinations. This information will hopefully lead to less adverse effects and more successful gastroparesis management.

Novel application of computer-assisted cisternal endoscopy for the biopsy of pineal region tumors: cadaveric study.

BACKGROUND: Long-standing debate continues about the management and biopsy of pineal tumors because of their complex microsurgical anatomy and deep location. Inspired by the concept of biopsy under direct visualization in the absence of hydrocephalus, we explored the effectiveness of neuroendoscope outside of its traditional territory using a new minimally invasive technique, computer-assisted cisternal endoscopy (CACE), for the biopsy of pineal tumors. METHOD: Five cadaver heads were dissected to expose the pineal region through the posterior fossa. In the other 5 heads, a rigid endoscope-wand combination was introduced in the supracerebellar space lateral to the arachnoid of the superior cerebellar cistern in midline. Endoscopic exposure of the pineal gland was correlated with the real-time image of the localizing wand. After the wand was removed, arachnoid was further dissected from the deep veins and the pineal gland, and a four-quadrant biopsy was obtained. FINDINGS: The combination of technologies of frameless guided stereotaxy and neuroendoscopy enhanced our ability to navigate the ventriculoscope in narrow spaces (e.g., posterior fossa cisterns). Compared with transventricular and conventional stereotactic trajectories, application of CACE in supracerebellar infratentorial trajectory offered the shortest route to the pineal region, anatomical orientation, no violation of eloquent neurovascular structures, and adequate visibility to deep veins and arteries. CONCLUSIONS: CACE may be used to approach pineal lesions outside the cerebral ventricular system for biopsy or debulking. Continuous computer updates on the endoscope position allows its safe navigation in narrow spaces (e.g., cerebrospinal fluid cistern). Its success will await future surgical trials.

[Burkitt's nasopharyngeal lymphoma in pediatric age]. / Linfoma de Burkitt nasofaríngeo en edad pediátrica.

The Burkitt's lymphoma is a haematological neoplasia typical of early ages. In our country, the lymphatic nodes affectation is the most usual. We present a case report with a 12 year-old boy who consults for a asymptomatic cervical mass. The ultimate diagnosic was a nasopharyngeal Burkitt's lymphoma with neck extension.

[Cordectomy by laryngofissure. Review of the period 1978-1998]. / Cordectomía por laringofisura. Revisión del periodo 1978-1998.

OBJECTIVE: The early glottic carcinoma can be approached by different therapeutic options. We analyze the results obtained by means of cordectomy opened up by laryngofissure. MATERIAL AND METHOD: We design a descriptive retrospective study including 75 patients with glottic carcinoma T1N0M0 handled by means of cordectomy by laryngofissure (72 males and 3 females). The anaesthetic technique was locoregional and sedation. Tumor T1a, 62 patients (82.66%); T1b, 13 patients (17.33%). RESULTS: The specific survival rate at three, five and ten years was 100, 96.8 and 85.2% respectively; the global survival was 98.66, 90.47 and 52.17% respectively to three, five and ten years. There were ten recurrences (13.3%). Following treatment, 50% of the relapsed patients died. The probability of survival free of illness to three, five and ten years was considered in 0.9322, 0.9172 and 0.7093 respectively. CONCLUSIONS: This technique means good control of the illness and technical easiness. When doing it without a tracheostomy it is tolerated better and it generates lower costs per patient.

Linfoma de Burkitt nasofaríngeo en edad pediátrica / Burkitt's nasopharyngeal lymphoma in pediatric age

El linfoma de Burkitt es una neoplasia hematológica propia de edades tempranas. En nuestro medio su forma de presentación más habitual es la enfermedad ganglionar. Presentamos el caso clínico de un varón de 12 años que consulta por una masa cervical asintomática, que se correspondía con un linfoma de Burkitt primario de cavum con extensión hacia el cuello (AU)

The Burkitt's lymphoma is a haematological neoplasia typical of early ages. In our country, the lymphatic nodes affectation is the most usual. We present a case report with a 12 year-old boy who consults for a asymptomatic cervical mass. The ultimate diagnosic was a nasopharyngeal Burkitt's lymphoma with neck extension (AU)