Publications by authors named "Zvi Klein"

Article Synopsis
  • The study aimed to enhance decision-making for managing ectopic pregnancy (EP) using a machine learning model.
  • It analyzed data from stable patients with ampullar EP from 2014 to 2022, employing a Decision Tree Classifier that achieved 89% accuracy and high metrics for predicting treatment success.
  • The findings suggest that this model could be a useful tool in clinical settings to predict the outcomes of expectant management based on specific clinical factors.
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Objectives: To evaluate pain perception and analgesic use between patients who underwent endometriosis-specific laparoscopic surgery compared to laparoscopic hysterectomy.

Material And Methods: This retrospective cohort study included women diagnosed with endometriosis who underwent laparoscopic surgery from 1/2019 to 11/2022. The control group consisted of premenopausal women who underwent laparoscopic hysterectomy, which was considered a similarly extensive surgery.

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Objective: This study aimed to compare duration of medication abortion after pretreatment with mifepristone versus misoprostol-only regimens at 22 + 0/7 to 30 + 0/7 weeks.

Methods: This retrospective cohort study included patients admitted for medication abortion from 2014 to 2022. Patients underwent feticide due to genetic or anatomical abnormalities at gestational age of 22 + 0/7 to 30 + 0/7 weeks.

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Article Synopsis
  • Women with endometriosis experience altered pain perceptions, leading to different pain management needs after cesarean delivery (CD).
  • A study compared post-operative pain scores and analgesic use between women with and without endometriosis, finding that those with endometriosis required higher doses of pain medication on the first post-operative day.
  • Despite increased analgesic use in the endometriosis group, their pain intensity, measured on a visual analogue scale, did not differ significantly from the control group.
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Objectives: To assess the characteristics of patients with unilateral and bilateral tubo-ovarian abscess (TOA).

Methods: Women diagnosed with TOA during 2003-2017 were included in this retrospective cohort study. TOA was diagnosed using sonography or computerized tomography and clinical criteria, or by surgical diagnosis.

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Purpose: This study evaluated the differences in treatment outcomes between misoprostol and surgical evacuation for the management of incomplete abortion.

Methods: This retrospective cohort study compared patients with a clinical diagnosis of incomplete abortion who underwent surgical or pharmaceutical (misoprostol) intervention, 2014-2017. Demographics, sonographic results, treatment follow-up, and post-intervention data on retained products of conception were retrieved.

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Objective: Postpartum retained products of conception (RPOC) can cause short- and long-term complications. Diagnosis is based on ultrasound examination and treated with hysteroscopy. This study evaluated the size of RPOC that can be related to a positive pathology result for residua.

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Study Objective: To create a decision support tool based on machine learning algorithms and natural language processing (NLP) technology, to augment clinicians' ability to predict cases of suspected adnexal torsion.

Design: Retrospective cohort study SETTING: Gynecology department, university-affiliated teaching medical center, 2014-2022.

Patients: This study assessed risk-factors for adnexal torsion among women managed surgically for suspected adnexal torsion based on clinical and sonographic data.

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Objective: Uterine size is one of the essential factors determining the feasibility of a minimally invasive gynecologic surgery approach. A traditional electromechanical morcellator is a well-known tool but not without flaws. We aim to assess feasibility and safety of a novel intrauterine power morcellation device for uterine size reduction to overcome these limitations during hysterectomy.

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Objective: Isolated posterior prolapse is a unique entity that was previously linked to chronic obstructive defecation. Our objective is to evaluate the relationship of low adherence to a Mediterranean diet (LAMD) with bowel dysfunction and isolated posterior compartment prolapse (IPCP).

Methods: This multicenter, cross-sectional study compared the dietary outcomes (validated Mediterranean diet [MD] questionnaire) of women who underwent pelvic organ prolapse (POP) repair surgery between August 2020 and October 2021.

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Objective: To study mesh exposure rates among obese (BMI ≥ 30 kg/m) vs non-obese women after mid-urethral sling (MUS) operation.

Study Design: This retrospective cohort study included all patients who underwent MUS surgery for stress urinary incontinence April 2014-April 2021 in a tertiary-level university hospital. Data from obese and non-obese patients were compared.

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Objective: Obesity is a key factor for stress urinary incontinence. Our aim was to evaluate the long-term, subjective surgical satisfaction rate among obese (BMI ≥ 30) women after mid-urethral sling (MUS) procedure in a tertiary-level university hospital.

Study Design: This retrospective, case-control study compared the outcomes of obese and non-obese patients who underwent MUS surgery for stress urinary incontinence (SUI), March 2014-January 2020.

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Objective: To evaluate the possibility of referring women with uterine polyps larger than 1.5 cm directly to surgical hysteroscopy.

Methods: This retrospective cohort study included all women referred to a university-affiliated tertiary medical center for hysteroscopy, with the diagnosis of endometrial polyp, from 01/2013 to 05/2016.

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Introduction: Missed abortion can be treated with medication or aspiration curettage. A Karman aspiration cannula is another option. We evaluated its success in evacuating retained products of conception (RPOC) based on symptoms, endometrial thickness, endometrial irregularity, and blood flow seen on Doppler ultrasound (indicative of placenta).

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Objective: COVID-19 pandemic caused a dramatic decline in the gynecology emergency department (ED) visits. The Israeli government took a determined step of quarantine to suppress and control the spread. This study evaluates the effect of the COVID -19 quarantine on gynecology emergency department (ED) visits compared to the previous year.

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Introduction: Pelvic inflammatory disease (PID) is an infection of the upper genital organs, diagnosed by clinical findings. The nucleic acid amplification test (NAAT) identify sexually transmitted (STD) pathogens from endocervical swabs, via real time PCR. This study explored the prevalence of STD detected by NAAT for women with PID.

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Objective: To compare two pain management strategies: oral tramadol or a verbal analgesia technique during insertion of an intrauterine device (IUD) among nulliparous women.

Study Design: In this randomized, controlled trial, 54 nulliparous women undergoing insertion of a levonorgestrel-releasing intrauterine device (IUD), from December 2015 to December 2018 were randomized to receive oral tramadol for analgesia or verbal analgesia prior to IUD insertion. Demographic data, clinical symptoms, visual analogue scale (VAS) and complications were reviewed from patient records.

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Aim: To investigate characteristics and risk factors for recurrent adnexal torsion (AT).

Methods: Retrospective cohort study in a university-affiliated medical center included 320 Women with AT verified by laparoscopy, from January 2005 through January 2017. Demographic data, clinical symptoms, surgical findings and treatment were retrospectively reviewed from patient records.

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Study Objective: To evaluate the clinical parameters of hospitalized patients with pelvic inflammatory disease (PID) for the presence of tubo-ovarian abscess (TOA) and predict the need for intervention.

Design: A prospective cohort study.

Setting: A tertiary care university medical center.

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Objective: To investigate the correlation between the hysterectomy's surgical approach and post hysterectomy adnexal torsion.

Study Design: Retrospective cohort study of patients with diagnosed adnexal torsion after hysterectomy (abdominal, vaginal and laparoscopic approaches) in a tertiary care medical center from 2007 through 2017 was done. Demographic data, clinical symptoms, type of previous hysterectomy, surgical findings and treatment were retrospectively reviewed from patient records.

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Objectives: The aim of the study was to describe the experience of one institution in management and outcome of tubo-ovarian abscess (TOA) in pre- and postmenopausal women and to reassess the optimal approach for TOA in postmenopausal women.

Methods: A retrospective cohort study included women diagnosed with TOA between 2003 and 2017 in a tertiary referral center. TOA was diagnosed by sonography or computerized tomography and at least one of the following criteria: temperature more than 38°C, leukocytosis more than 15,000 mm, or surgically proven disease.

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Article Synopsis
  • The study investigated the relationship between the length of ovarian ligaments and the occurrence of ovarian torsion in women.
  • Conducted as a prospective cohort study in a university hospital, it involved 56 women—28 with ovarian torsion and 28 with other gynecological issues.
  • Results indicated that women in the torsion group had significantly longer right ovarian ligaments compared to the control group, suggesting that longer ligaments may be linked to an increased risk of ovarian torsion.
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Study Objective: To investigate the pregnancy and neonatal outcomes of surgical treatment for adnexal torsion (AT) during pregnancy.

Design: A retrospective case-control study (Canadian Task Force classification II-2).

Setting: A tertiary care academic medical center.

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Objectives: The whirlpool sign is used as a sonographic marker for adnexal torsion. The aims of this study were to describe the location of the whirlpool sign (lateral or medial to the ovary) and to evaluate the clinical importance of the location.

Methods: Thirty patients with a confirmed surgical diagnosis of torsion and a positive whirlpool sign on sonography before surgery were included.

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